DE2906258A1 - SERVOHYDRAULIC DEVICE FOR LOAD-IN AND LOAD-INDEPENDENT CONTROL AND REGULATION OF PRESSURE PRESSURE APPLICATION OF A PRESSURE MOTOR DEPENDING ON AN ELECTRIC SIGNAL SIZE - Google Patents
SERVOHYDRAULIC DEVICE FOR LOAD-IN AND LOAD-INDEPENDENT CONTROL AND REGULATION OF PRESSURE PRESSURE APPLICATION OF A PRESSURE MOTOR DEPENDING ON AN ELECTRIC SIGNAL SIZEInfo
- Publication number
- DE2906258A1 DE2906258A1 DE19792906258 DE2906258A DE2906258A1 DE 2906258 A1 DE2906258 A1 DE 2906258A1 DE 19792906258 DE19792906258 DE 19792906258 DE 2906258 A DE2906258 A DE 2906258A DE 2906258 A1 DE2906258 A1 DE 2906258A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure medium
- pressure
- control
- load
- piston
- 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.)
- Withdrawn
Links
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
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Description
Deshalb eignet sich diese Einrichtung besonders zur Steuerung druckmittelbetätigter Transporteinrichtungen zum Transport unter= schiedlich schwerer Güter, die jeweils mit der gleichen Beschleu= nigung, Geschwindigkeit und Verzögerung transportiert werden sollen.This device is therefore particularly suitable for controlling pressurized media Transport facilities for transporting goods of different weights, each transported with the same acceleration, speed and deceleration should be.
Die Erfindung soll nun an einem Ausführungsbeispiel an Hand derThe invention is now based on an exemplary embodiment using the
Zeichnung näher beschrieben werden, so daß Merkmale der Erfindung deutlich werden.Drawing will be described in more detail, so that features of the invention become clear.
Die Figur zeigt einen Schnitt durch ein Servohydraulisches Wege= ventil, das aus Vorsteuerventil ind Hauptventil besteht.The figure shows a section through a servohydraulic way valve, which consists of a pilot valve and a main valve.
In der Schnittzeichnung sind Arbeitsanschlüsse mit in der tech= nischen Literatur üblichen Buchstaben gekennzeichnet.In the sectional drawing, working connections are also in the technical Literature marked with usual letters.
Bedeutung: A = den elektrisch gesteuert und hydrostatisch geregelten Druck= mittelstrom führender Arbeitsanschluß zum druckmittelbetä= tigten Rotations- oder Linearmotor, für beide Flußrichtungen.Meaning: A = the electrically controlled and hydrostatically regulated Pressure = medium flow working connection to the pressure medium actuated rotary or linear motor, for both directions of flow.
B = zum zweiten Arbeitsanschluß des druckmittelbetätigten Rotations-oder Linearmotores führender Druckmittelstrom in beiden Flußrichtungen.B = to the second working connection of the pressure medium-operated rotary or Linear motor leading pressure medium flow in both directions of flow.
P = den Druckmittelanschluß von der Druckmittelstation.P = the pressure medium connection from the pressure medium station.
T = den drucklosen Druckmittel-Rückflußanschluß zum Druckmittel= behälter.T = the pressureless pressure medium return connection to the pressure medium = container.
X = einen Steueranschluß für druckgeregeltes Druckmittel.X = a control connection for pressure-regulated pressure medium.
Z = einen Steueranschluß für druckgeregeltes Druckmittel.Z = a control connection for pressure-regulated pressure medium.
Im Einzelnen ist die Funktion des im Schnittbild der Figur dar= gestellten servohydraulischen Wegeventiles folgende: Ein von der Druckmittelstation am Druckmittelanschluß P des Hauptventilgehäuses 1 anstehendes Druckmittel steht auch n der Ringkammer P des Regelkolbens 14 und der Ringkammer P des Druck= regelkolbens 25 an, bis durch eine elektrische Signalgröße am Regelmagneten a eine Hubkraft auf den federzentrierten und längs verschiebbaren Druckregelkolben 23 in Richtung Reelmagnet b mit entsprechender Größe wirkt, diesen verschiebt und den Druckmittel= fluß vom Ringkanal P zum Ringkanal Z3, durch die Verbindung Z2 in den Ringkanal Z1 des Druckregelkolbens 25 gestattetj um weiter durch die Verbindung Z in das Federgehäuse 21 und das Federgehäuse 3 zu fließen.In detail is the function of the one shown in the sectional view of the figure Servohydraulic directional control valve the following: One from the pressure medium station at the pressure medium connection P pressure medium present in the main valve housing 1 is also available in the annular chamber P of the control piston 14 and the annular chamber P of the pressure = control piston 25 until through an electrical signal quantity on the control magnet a a lifting force on the spring-centered and longitudinally displaceable pressure regulating piston 23 in the direction of reel magnet b with the corresponding Size acts, this shifts and the pressure medium = flow from the ring channel P to the ring channel Z3, through the connection Z2 in the annular channel Z1 of the pressure regulating piston 25 allowed in order to continue through the connection Z into the spring housing 21 and the spring housing 3 flow.
Dabei wirkt das gleiche Druckmittel im Ringraum Z1 des Druck= regelkolbens 25 stirnseitig auf diesen und schiebt ihn in Rich= tung Zentrier- oder Mittelstellung zurück, bis Kräftegleichheit zur Hubkraft des Regelmagneten a herscht.The same pressure medium acts in the annular space Z1 of the pressure control piston 25 on the face and pushes it in the direction of the centering or middle position back until the force equals the lifting force of the control magnet.
Der nun in der Federkammer 21 wirkende Druckmitteldruck propor= tionaler Größe zur elektrischen Signalgröße, schiebt den Zentrier= kolben 19 mit dem Regelkolben 14 in die linke federzentrierte Stellung mit Sollöffnung des Druckmittelflusses durch den Regel= kolben 14 von Ringraum P nach A1 und von Ringraum 3 nach T und der in der Federkammer 3 wirkende Druckmitteldruck proportionaler Größe zur elektrischen Signalgröße, schiebt den Drosselkolben 2 gegen die Zentrierfeder 8 in der Federkammer 4 bis sich Druck= mitteldruck und Federkraft die Waage halten.The pressure medium pressure now acting in the spring chamber 21 is proportional Size for the electrical signal size, pushes the centering piston 19 with the control piston 14 in the left spring-centered Position with the nominal opening of the pressure medium flow by the rule = piston 14 from annular space P to A1 and from annular space 3 to T and the pressure medium pressure acting in the spring chamber 3 is proportional to the electrical pressure Signal variable, pushes the throttle piston 2 against the centering spring 8 in the spring chamber 4 until pressure = medium pressure and spring force are in balance.
Die damit entstandene Druckmittel-Durchflußöffnung vom Ringkanal P zum Ringkanal Al des Drosselkolbens 14 und am Drosselkolben 2 vom Ringkanal Al durch den Öffnungsquerschnitt in den ringkanal A und durch den Arbeitsanschluß A zum druckmittelbetätigten Rotations-oder Linearmotor, gestattet einen durchfließenden Druckmittelstrom, der dem Öffnungsquerschnitt am Drosselkolben 2 mit vorzugsweise 4 bar Druckdifferenz entspricht.The resulting pressure medium flow opening from the annular channel P. to the annular channel Al of the throttle piston 14 and on the throttle piston 2 from the annular channel Al the opening cross-section in the annular channel A and through the working connection A to the pressure medium-actuated Rotary or linear motor, allows a flowing pressure medium flow, the the opening cross-section on the throttle piston 2, preferably with a pressure difference of 4 bar is equivalent to.
Für das Einhalten dieser Druckdifferenz sorgt der Rgelkolben 14, der zu diesem Zweck gegen vorzugsweise 4 bar stirnseitigem Druck= mitteldruck zwischen den Ringkammern A2 und A3 mittels Regelkolben-Zentrierfedern 16 und 18 längszentriert ist, dadurch, daß der höhere Druckmitteldruck im Ringkanal A2 den Regelkolben 14 gegen den vorzugsweise 4 bar geringeren Druckmitteldruck im Ringkanal A3 soweit verschiebt, wie es zur hydrostatischen Regelgleichheit des Druckmittel flusses aus dem Ringkanal A1 in den Ringkanal A am Drosselkolben 2 erforderlich ist.The control piston 14, the for this purpose against preferably 4 bar front pressure = medium pressure between longitudinally centered the annular chambers A2 and A3 by means of regulating piston centering springs 16 and 18 is, in that the higher pressure medium pressure in the annular channel A2 the control piston 14 against the preferably 4 bar lower pressure medium pressure in the annular channel A3 so far shifts, as is the case with the hydrostatic control equality of the pressure medium flow the annular channel A1 into the annular channel A on the throttle piston 2 is required.
Gleichzeitig fließt das Druckmittel aus dem druckmittelbetätigtem Rotations- oder Linearmotor durch den Arbeitsanschluß B zum Ring= kanal T des Regelkolbens 14 und weiter drucklos durch den Rück= flußanschluß T in den Druckmittelbehälter.At the same time, the pressure medium flows out of the pressure medium-actuated one Rotary or linear motor through the working connection B to the ring = channel T of the control piston 14 and further pressureless through the return flow connection T into the pressure medium container.
Mit diesem Funktionsablauf des servohydraulischen Wegeventiles wurde die Steuerung eines druckmittelbetätigten Rotations- oder Linearmotores beschrieben, der einen Transportwagen mit unterschied= lich schweren Lasten bei gleichem Geschwindigkeitsablauf in einer Laufrichtung antreibt. Die Gegenlaufrichtung wird durch entsprechende elektrische Signal größen zum Regelmagneten b eingeleitet und hat den gleichen umgekehrten Funktionsablauf.With this functional sequence of the servohydraulic directional control valve the control of a rotary or linear motor operated by pressure medium is described, the one transport trolley with loads of different weights at the same speed drives in one direction. The opposite direction is controlled by a corresponding electrical Signal variables are initiated for the control magnet b and has the same reverse functional sequence.
Bei fehlendem elektrischem Signal befindet sich das servohydrau= lische Wegeventil in der Ausgangsstellung, die in der Zeichnung dargestellt ist, in der kein Druckmittelverbrauch erfolgt.If there is no electrical signal, the servohydraulic one is located Directional valve in the starting position, which is shown in the drawing, in the there is no consumption of pressure medium.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792906258 DE2906258A1 (en) | 1979-02-19 | 1979-02-19 | SERVOHYDRAULIC DEVICE FOR LOAD-IN AND LOAD-INDEPENDENT CONTROL AND REGULATION OF PRESSURE PRESSURE APPLICATION OF A PRESSURE MOTOR DEPENDING ON AN ELECTRIC SIGNAL SIZE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792906258 DE2906258A1 (en) | 1979-02-19 | 1979-02-19 | SERVOHYDRAULIC DEVICE FOR LOAD-IN AND LOAD-INDEPENDENT CONTROL AND REGULATION OF PRESSURE PRESSURE APPLICATION OF A PRESSURE MOTOR DEPENDING ON AN ELECTRIC SIGNAL SIZE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2906258A1 true DE2906258A1 (en) | 1980-08-28 |
Family
ID=6063268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792906258 Withdrawn DE2906258A1 (en) | 1979-02-19 | 1979-02-19 | SERVOHYDRAULIC DEVICE FOR LOAD-IN AND LOAD-INDEPENDENT CONTROL AND REGULATION OF PRESSURE PRESSURE APPLICATION OF A PRESSURE MOTOR DEPENDING ON AN ELECTRIC SIGNAL SIZE |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2906258A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3041339A1 (en) * | 1980-11-03 | 1982-06-09 | Backé, Wolfgang, Prof.Dr.-Ing., 5100 Aachen | Electropneumatic servo valve - has spring oscillating piston moved by two EM transducers |
DE3205860A1 (en) * | 1982-02-18 | 1983-08-25 | Mannesmann Rexroth GmbH, 8770 Lohr | Solenoid-operated servo valve |
EP1130272A3 (en) * | 2000-03-04 | 2003-10-29 | FESTO AG & Co | Valve |
-
1979
- 1979-02-19 DE DE19792906258 patent/DE2906258A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3041339A1 (en) * | 1980-11-03 | 1982-06-09 | Backé, Wolfgang, Prof.Dr.-Ing., 5100 Aachen | Electropneumatic servo valve - has spring oscillating piston moved by two EM transducers |
DE3205860A1 (en) * | 1982-02-18 | 1983-08-25 | Mannesmann Rexroth GmbH, 8770 Lohr | Solenoid-operated servo valve |
EP1130272A3 (en) * | 2000-03-04 | 2003-10-29 | FESTO AG & Co | Valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |