CN101929492A - Be used to control the device of equipment with oil hydraulic circuit - Google Patents
Be used to control the device of equipment with oil hydraulic circuit Download PDFInfo
- Publication number
- CN101929492A CN101929492A CN201010208415XA CN201010208415A CN101929492A CN 101929492 A CN101929492 A CN 101929492A CN 201010208415X A CN201010208415X A CN 201010208415XA CN 201010208415 A CN201010208415 A CN 201010208415A CN 101929492 A CN101929492 A CN 101929492A
- Authority
- CN
- China
- Prior art keywords
- oil hydraulic
- control unit
- pressure
- rotating speed
- hydraulic circuit
- 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
Links
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The present invention relates to a kind of be used to control have oil hydraulic circuit and more than the device of the equipment of a single oil hydraulic pump, the pump of wherein also can a plurality of selectively oil hydraulic circuits attaching troops to a unit successively continuously.In oil hydraulic circuit, be furnished with the oil hydraulic pump that is used for sap pressure supply pressure and hydraulic volume flow.Each oil hydraulic pump and the pressure and the volume flow control unit acting in conjunction of oil hydraulic circuit accordingly.Oil hydraulic pump (3) is as guiding pump (3
1) and the acting in conjunction of guiding control unit (6), it obtains the theoretical value (n of the rotating speed (n) of single electric motor (5)
s).The variable rotating speed (n) of time of calculating motor (5) in guiding control unit (6) for this reason.Comparison and consideration are used for the different force value (p of the supply of oil hydraulic circuit (2) when calculating rotating speed (n)
1To p
n) and/or volume flow value (Q
1To Q
n).
Description
Technical field
The present invention relates to a kind of be used to control have oil hydraulic circuit and, wherein also can select a plurality of oil hydraulic circuits to attach troops to a unit successively continuously in a pump more than the device of the equipment of a unique oil hydraulic pump.The control unit acting in conjunction of the relevant pressure of each oil hydraulic pump and at least one oil hydraulic circuit and volume flowrate.
Background technique
Supply for the pressure medium that is adjusted to oil hydraulic circuit, by document EP 1 236 558 B1 disclose a kind of can hydraulic operated final controlling element, one of them pump of motoring with variable rotating speed is used for regulating in the pressure and the volume flowrate of single oil hydraulic circuit, and pressure/volume flowrate that this pump correspondence is predesignated by the controller of upper level is characterized as the pressure medium of final controlling element sap pressure supply.Draw a period or a zone of carrying out the adjusting of volume flowrate therein in this inside, and one is carried out pressure controlled period or zone therein in production cycle.
For conserve energy and economically operation have the equipment of oil hydraulic circuit, not only be provided with the controller of the rotating speed of motor, and be provided with the controller of the supply of pump.The volume flowrate of the pressure medium of being carried by pump multiplies each other in this revolution supply by the rotating speed of driven pump and pump and draws.For the zone of the production cycle of carrying out the volume flowrate adjusting therein, a plurality of values of the rotating speed of single hydraulic circuit and supply are to realizing by means of motor and adjustable hydrostatic pump.
In order to control equipment with a plurality of oil hydraulic circuits, pressure/volume flowrate feature in order to control oil hydraulic circuit thus, need the motor with adjustable variable rotating speed of quantity of a plurality of corresponding oil hydraulic circuits and the quantity of corresponding oil hydraulic pump, to guarantee the pressure of the predesignating/volume flowrate feature of each oil hydraulic circuit.A kind of like this device that is used for control apparatus has this shortcoming, and the variable motor of promptly a plurality of rotating speeds is provided with corresponding frequency variator, they and a plurality of corresponding oil hydraulic pump acting in conjunction, and this causes huge equipment cost.
Summary of the invention
Task of the present invention is, overcomes shortcoming in the prior art and a kind of device that is used to control the equipment with oil hydraulic circuit is provided, and utilizes it can obviously reduce equipment cost.
This task is utilized independently, and claim 1 solves.The favourable improvement project of the present invention is provided by dependent claims.
According to the invention provides a kind of device that is used to control equipment with oil hydraulic circuit.This oil hydraulic circuit is attached troops to a unit an oil hydraulic pump.The corresponding pressure of each oil hydraulic pump and the oil hydraulic circuit of at least one and volume flow control unit acting in conjunction.This oil hydraulic pump is connected in series on the output shaft of a unique motor.One of them oil hydraulic pump is as guiding pump and the acting in conjunction of guiding control unit, and it obtains the theoretical value of the rotating speed of unique motor.The variable rotating speed of time of calculating motor in the guiding control unit for this reason.The different force value and/or the volume flow value that when calculating rotating speed, relatively are used for the supply of oil hydraulic circuit with consideration.
A kind of like this device that is used for control apparatus has this advantage, promptly can save the variable motor of rotating speed with the high frequency variator of corresponding cost, and relatively for oil hydraulic circuit use a plurality of rotating speeds variable motor do not weaken quality of regulation.This unique motor that is used to drive a plurality of oil hydraulic pumps is also mating essential pressure/volume flowrate feature changeably aspect its rotating speed, can obtain to have the work of energy saving of the equipment of a plurality of oil hydraulic circuits like this.Only adjust the rotating speed on the motor respectively, it draws as the pressure/volume flowrate feature of the highest essential rotating speed by the oil hydraulic circuit of predesignating with comparing in corresponding time window.This control also is conserve energy thus simultaneously, because the requirement of the corresponding oil hydraulic circuit that connects of rotating speed is optimally mated.
In this corresponding time window, the rotating speed that promptly occurs the rotating speed that this correspondence obtained by guide controller therein, carry out a pressure/volume flowrate at the corresponding submaster controller of the oil hydraulic circuit that is used for other and regulate, it makes the pressure of oil hydraulic pump of back and volume flowrate be matched with the rotating speed of the motor that this time window occurs.
Of the present invention a kind of preferred embodiment in, for the variable theoretical value of time of the rotating speed of regulating unique motor, the guiding control unit of guiding pump is obtained a rotating speed theoretical value and this rotating speed theoretical value is flowed to a frequency variator that is connected with unique electric electromechanics by transmitting the essential force value of coming and/or essential volume flow value.
In order individually to be transferred on the pressure/volume flowrate feature of oil hydraulic pump at the inner rotating speed that occurs of time window, oil hydraulic pump respectively with a control valve acting in conjunction, it is according to the time and regulate the hydraulic pressure and the hydraulic volume flow supply of single oil hydraulic circuit changeably according to the theoretical rotational speed of current motor.
The corner regulator (Schwenkwinkelregler) of this control valve and oil hydraulic pump and pressure valve acting in conjunction for this reason.The value of theoretical value of controlling the rotating speed of motor by guiding control unit being used to of obtaining not only is transferred to frequency variator but also is transferred to other sub-control unit of other oil hydraulic circuit for this reason.
A programmable controller is predesignated pressure and the volume flowrate theoretical value of the essential dependence time of guiding control unit and each sub-control unit.For the pressure and independently the regulating of volume flowrate of the oil hydraulic circuit that connects provides the theoretical value of pressure and volume flow value and the current rotating speed of motor thus in each sub-control unit, each sub-control unit such as above mentionedly have a corner regulator and a pressure regulator wherein as being used for the hydraulic pressure of regulator solution hydraulic circuit and the control valve unit of hydraulic volume flow demand.This guiding control unit has at least one rotating speed theoretical value transmitter, pressure and volume flowrate regulator and a control valve thus.And the sub-control unit has at least one pressure and volume flowrate regulator and a control valve.
In addition, this device has clutch, the output shaft of single oil hydraulic pump and unique motor can be connected in series by it.
Embodiment
The present invention describes in detail by accompanying drawing now.
Fig. 1 shows and a kind ofly is used for control and has an oil hydraulic circuit 2
1To 2
nThe Block Diagram of principle of device 1 of equipment.Each oil hydraulic circuit 2
1To 2
nAttach troops to a unit an oil hydraulic pump 3 is arranged
1To 3
n, it and oil hydraulic circuit 2
1To 2
nRespectively by a hydraulic pipe line 15
1To 15
nConnect.Produce the oil hydraulic pump 3 of volume flowrate
1To 3
nHave a corner regulator, utilize it can between the zero-sum maximum value, regulate the volume flowrate relevant with the rotating speed of drive motor.Oil hydraulic pump 3.
1To 3.
n Common output shaft 4 by motor 5 drives.For coupling liquid press pump 3 is provided with clutch 10 in power train
1To 10
nThus can be with oil hydraulic pump 3
1To 3
nIn series be attached on the output shaft 4 of unique motor 5.
One in the oil hydraulic pump 3 as guiding pump 3
1With 6 actings in conjunction of guiding control unit.Remaining oil hydraulic pump 3
2To 3
nRespectively with 7 actings in conjunction of sub-control unit.Guiding control unit 6 has a rotating speed theoretical value transmitter 13, and it is according to pressure/volume flowrate feature calculation rotating speed theoretical value n
sAnd output.Pressure theory value p for this reason
S1To p
SnWith volume flowrate theoretical value Q
S1To Q
SnPredesignate and offer by a programmable controller 12 by control wiring 16 and be used for control and have an oil hydraulic circuit 2
1To 2
nThe device 1 of equipment.
In guiding control unit 6, utilize the variable pressure characteristic p of rotational speed sender 13 from predesignating by programmable controller 12
S1To p
SnWith volume flowrate feature Q
S1To the value of Qsn according to oil hydraulic circuit 2
1To 2
nPressure actual value p
I1To p
InAnd volume flowrate actual value Q
I1To Q
InThe rotating speed theoretical value n that will change the time accordingly a period of predesignating
sOn the one hand output on the frequency variator 8 of the rotational speed regulation that is used for motor 5 and output to each sub-control unit 7 by control wiring 18 on the other hand by control wiring 17.Can make for a period of predesignating thus and have theoretical rotational speed n
sMotoring oil hydraulic pump 3
1To 3
nAnd each oil hydraulic pump 3
1To 3
nCan keep the theoretical pressure p that this time interval is predesignated with control valve unit 9 actings in conjunction ground by the pressure/volume flowrate regulator 14 that is included in control unit 6 and 7
sAnd volume flow Q
s, they are delivered on the guiding control unit 6 by sub-control unit 7 by signal line 19 respectively.
Appear at oil hydraulic circuit 2 respectively
1To 2
nIn pressure p
iAnd volume flow Q
iThe virtual condition of form be delivered to control corresponding unit 6 in other words on 7 and be delivered on the pressure and volume flowrate regulator 14 that is arranged in the there by corresponding signal lines road 20.This is used for control and has oil hydraulic circuit 2
1To 2
nEquipment device 1 thus can, although have only one unique, have the motor of the variable rotating speed of adjusting changeably by 8 times of frequency variator, each oil hydraulic circuit 2
1To 2
nPass through variable oil hydraulic pump 3 with the final controlling element that is arranged in the oil hydraulic circuit
1To 3
nSupply the force value and the volume flow value of different couplings.
Reference numerals list
1 is used to control a kind of device of equipment
2 oil hydraulic circuits
3 oil hydraulic pumps
4 output shafts
5 motor
6 guiding control units
7 sub-control unit
8 frequency variators
9 control valves are the control valve unit in other words
10 clutches
12 programmable controllers
13 rotating speed theoretical value distributor
14 pressure and volume flowrate regulator
15 hydraulic pipe lines
16 control wirings
17 control wirings
18 control wirings
19 signal lines
20 signal lines
n
sThe theoretical value of rotating speed
The n rotating speed
P pressure
The Q volume flowrate
Claims (9)
1. be used to control the device of equipment with oil hydraulic circuit, oil hydraulic circuit (2) oil hydraulic pump (3) of attaching troops to a unit wherein, and the wherein relevant pressure and volume flow control unit (6, the 7) acting in conjunction of each oil hydraulic pump (3) and the oil hydraulic circuit (2) of at least one, and wherein oil hydraulic pump (3) is connected in series on the output shaft (4) of a unique motor (5), and one of them oil hydraulic pump (3) is as guiding pump (3
1) and the acting in conjunction of guiding control unit (6), it obtains the theoretical value (n of the rotating speed (n) of unique motor (5)
s), and wherein in guiding control unit (6) variable rotating speed (n) of the time of calculating motor (5) and when calculating rotating speed (n) comparison and consideration be used for the different force value (p in sap pressure supply loop (2)
1To p
n) and/or volume flow value (Q
1To Q
n).
2. device according to claim 1 is characterized in that, for the variable theoretical value (n of time of the rotating speed (n) of regulating unique motor (5)
s), guiding pump (3
1) guiding control unit (6) from all hydraulic loop (2
1To 2
n) the essential force value (p of transmission
1To p
n) and/or essential volume flow value (Q
1To Q
n) obtain rotating speed theoretical value (n
s) and offer the frequency variator (8) that is electrically connected with unique motor (5).
3. according to claim 1 or the described device of claim 2, it is characterized in that, each oil hydraulic pump (3) and the acting in conjunction of control corresponding unit, it with time correlation and changeably according to current theoretical rotational speed (n
s) regulate the hydraulic pressure and the hydraulic volume flow supply of single oil hydraulic circuit (2).
4. according to each described device in the aforementioned claim, it is characterized in that this device has clutch (10,11), can be connected in series with the output shaft (4) of unique motor (5) by their single oil hydraulic pumps (3).
5. according to each described device in the aforementioned claim, it is characterized in that, by the theoretical value (n of the rotating speed that is used to control motor (5) (n) that guides control unit (6) to obtain
s) value not only be transferred to frequency variator (8) but also be transferred to other sub-control unit (7) of other oil hydraulic circuit (2).
6. according to each described device in the aforementioned claim, it is characterized in that programmable controller (12) is predesignated pressure theory value (p essential and time correlation for guiding control unit (6) and each sub-control unit (7)
S1To p
Sn) and volume flowrate theoretical value (Q
S1To Q
Sn).
7. according to each described device in the aforementioned claim, it is characterized in that,, in each sub-control unit (7), provide pressure (p for the pressure (p) of the oil hydraulic circuit (2) that connects and the independently adjusting of volume flowrate (Q)
S1To p
Sn) and volume flow value (Q
S1To Q
Sn) theoretical value and the current rotating speed (n of motor (5)
s), and each sub-control unit (7) has the corner regulator and the pressure regulator conduct is used for the hydraulic pressure of regulator solution hydraulic circuit (2) and the control valve unit (9) of hydraulic volume flow demand.
8. according to each described device in the aforementioned claim, it is characterized in that described guiding control unit (6) has at least one rotating speed theoretical value transmitter (13), pressure and volume flowrate regulator (14) and control valve (9).
9. according to each described device in the aforementioned claim, it is characterized in that described sub-control unit (7) has at least one pressure and volume flowrate regulator (13) and control valve (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009025707.1A DE102009025707B4 (en) | 2009-06-20 | 2009-06-20 | Device for controlling a system with hydraulic circuits |
| DE102009025707.1 | 2009-06-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101929492A true CN101929492A (en) | 2010-12-29 |
| CN101929492B CN101929492B (en) | 2014-12-17 |
Family
ID=43123003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010208415.XA Active CN101929492B (en) | 2009-06-20 | 2010-06-18 | Device for controlling equipment with hydraulic loop |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101929492B (en) |
| DE (1) | DE102009025707B4 (en) |
| IT (1) | IT1401092B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629094A (en) * | 2012-08-24 | 2014-03-12 | 罗伯特·博世有限公司 | Pump device |
| CN107407354A (en) * | 2015-03-11 | 2017-11-28 | 舍弗勒技术股份两合公司 | Method for adjusting and adapting the operating point of a hydraulic actuator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015222261B3 (en) * | 2015-11-11 | 2016-12-01 | Bayerische Motoren Werke Aktiengesellschaft | Control method for energy consumption optimization of a test bench |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239861A (en) * | 1988-12-23 | 1993-08-31 | Kabushiki Kaisha Komatsu Seisakusho | Device for indicating contamination degree of hydraulic circuit and method of judging the contamination degree |
| JPH06323303A (en) * | 1993-05-12 | 1994-11-25 | Koyo Mach Ind Co Ltd | Hydraulic actuator driving device |
| DE19950910A1 (en) * | 1999-10-22 | 2001-04-26 | Mannesmann Rexroth Ag | Hydraulic equipment driving closure mechanism of pressure injection mold, includes displacement control valve with spool configured for both control and braking functions |
| EP1236558B1 (en) * | 2001-03-03 | 2004-01-21 | Bosch Rexroth AG | Method for fluid supply regulation of an hydraulic actuator |
| CN1604995A (en) * | 2001-10-19 | 2005-04-06 | Saxa株式会社 | Hydraulic equipment |
| US20050200195A1 (en) * | 2003-03-03 | 2005-09-15 | Teruaki Yogo | Hydraulic device |
| JP2006009888A (en) * | 2004-06-24 | 2006-01-12 | Shin Caterpillar Mitsubishi Ltd | Hydraulic control circuit for construction machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2331617A1 (en) * | 1973-06-22 | 1975-01-16 | Bosch Gmbh Robert | CONTROL DEVICE FOR HYDROPUMPS |
| KR950019129A (en) * | 1993-12-30 | 1995-07-22 | 김무 | Engine-pump control device and method of hydraulic construction machine |
| US5999872A (en) * | 1996-02-15 | 1999-12-07 | Kabushiki Kaisha Kobe Seiko Sho | Control apparatus for hydraulic excavator |
| JP4218261B2 (en) * | 2002-06-11 | 2009-02-04 | ダイキン工業株式会社 | Pumping unit |
| DE10307190A1 (en) * | 2003-02-20 | 2004-09-16 | O & K Orenstein & Koppel Gmbh | Method for controlling a hydraulic system of a mobile work machine |
| JP5111817B2 (en) * | 2006-09-14 | 2013-01-09 | Ｎｔｎ株式会社 | Fixed constant velocity universal joint |
-
2009
- 2009-06-20 DE DE102009025707.1A patent/DE102009025707B4/en active Active
-
2010
- 2010-06-18 IT ITMI2010A001103A patent/IT1401092B1/en active
- 2010-06-18 CN CN201010208415.XA patent/CN101929492B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239861A (en) * | 1988-12-23 | 1993-08-31 | Kabushiki Kaisha Komatsu Seisakusho | Device for indicating contamination degree of hydraulic circuit and method of judging the contamination degree |
| JPH06323303A (en) * | 1993-05-12 | 1994-11-25 | Koyo Mach Ind Co Ltd | Hydraulic actuator driving device |
| DE19950910A1 (en) * | 1999-10-22 | 2001-04-26 | Mannesmann Rexroth Ag | Hydraulic equipment driving closure mechanism of pressure injection mold, includes displacement control valve with spool configured for both control and braking functions |
| EP1236558B1 (en) * | 2001-03-03 | 2004-01-21 | Bosch Rexroth AG | Method for fluid supply regulation of an hydraulic actuator |
| CN1604995A (en) * | 2001-10-19 | 2005-04-06 | Saxa株式会社 | Hydraulic equipment |
| US20050200195A1 (en) * | 2003-03-03 | 2005-09-15 | Teruaki Yogo | Hydraulic device |
| JP2006009888A (en) * | 2004-06-24 | 2006-01-12 | Shin Caterpillar Mitsubishi Ltd | Hydraulic control circuit for construction machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629094A (en) * | 2012-08-24 | 2014-03-12 | 罗伯特·博世有限公司 | Pump device |
| CN107407354A (en) * | 2015-03-11 | 2017-11-28 | 舍弗勒技术股份两合公司 | Method for adjusting and adapting the operating point of a hydraulic actuator |
| CN107407354B (en) * | 2015-03-11 | 2019-07-30 | 舍弗勒技术股份两合公司 | Method for adjusting and adapting the operating point of a hydraulic actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI20101103A1 (en) | 2010-12-21 |
| IT1401092B1 (en) | 2013-07-12 |
| CN101929492B (en) | 2014-12-17 |
| DE102009025707A1 (en) | 2010-12-23 |
| DE102009025707B4 (en) | 2021-06-02 |
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