DE1051125B - Switching valve, especially for hydraulic drives - Google Patents
Switching valve, especially for hydraulic drivesInfo
- Publication number
- DE1051125B DE1051125B DEB35441A DEB0035441A DE1051125B DE 1051125 B DE1051125 B DE 1051125B DE B35441 A DEB35441 A DE B35441A DE B0035441 A DEB0035441 A DE B0035441A DE 1051125 B DE1051125 B DE 1051125B
- Authority
- DE
- Germany
- Prior art keywords
- line
- pressure
- switching valve
- piece
- slide
- 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.)
- Pending
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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- 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
- F15B2211/415—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
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/421—Flow control characterised by the type of actuation mechanically
- F15B2211/423—Flow control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
-
- 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
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing 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
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7052—Single-acting output members
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft ein Schaltventil, das mit Hilfe eines mindestens teilweise ausgehöhlten Steuerschiebers abhängig vom Druck in einer ersten Leitung eine zweite Leitung entweder mit einem Rücklaufkanal oder mit der ersten Leitung verbindet und unter der Einwirkung der Kraft einer Druckfeder in Richtung auf eine seiner Endstellungen steht.The invention relates to a switching valve which, with the aid of an at least partially hollowed out control slide depending on the pressure in a first line, a second line either with a return channel or connects to the first line and under the action of the force of a compression spring in the direction stands on one of its end positions.
Bei einem bekannten Schaltventil sind die Leitungen so angeordnet, daß das hohle Steuerglied zum Schalten um seine ganze Länge verschoben werden muß. Diese kann aus konstruktiven Gründen nicht beliebig klein gemacht werden. Dadurch ist eine bestimmte Mindestgröße des Schaltweges vorgeschrieben. Diese Größe bedingt wieder eine gewisse Trägheit des Arbeitens. Diese Nachteile sind ohne Bedeutung bei Anlagen, die nur selten arbeiten, wie z. B. bei einer Schnellschlußeinrichtung. Sie sind aber erheblich bei Anlagen, in denen die Schaltventile sehr viele Arbeitsspiele in laufender Folge steuern müssen.In a known switching valve, the lines are arranged so that the hollow control member for switching must be shifted by its entire length. For structural reasons, this cannot be arbitrary be made small. As a result, a certain minimum size of the switching path is prescribed. These Size again requires a certain inertia of work. These disadvantages are irrelevant Systems that rarely work, such as B. with a quick release device. But they are considerably at Systems in which the switching valves have to control a large number of work cycles in a continuous sequence.
Das Steuerglied des bekannten Schaltventils wird nur beim Übergang von der einen in die andere Endlage vom Druckmittel durchströmt, wie es bei Rohrschiebern allgemein gebräuchlich ist, die axiale und/ oder radiale öffnungen haben.The control element of the known switching valve is only activated during the transition from one end position to the other the pressure medium flows through it, as it is generally used with pipe valves, the axial and / or have radial openings.
Die Nachteile des bekannten Schaltventils werden nach der Erfindung dadurch beseitigt, daß die Höhlung des Steuerschiebers zu dem in axialer Richtung liegenden Anschluß der zweiten Leitung hin offenThe disadvantages of the known switching valve are eliminated according to the invention in that the cavity of the control slide open to the connection of the second line lying in the axial direction
und der Steuerschieber in einer Stellung mindestens annähernd ganz und in der anderen teilweise in an sich bekannter Weise vom Druckmittel durchströmt ist und daß der Steuerschieber zusätzliche an sich bekannte Öffnungen hat, von denen die eine axiale in einer niedrigem Druck entsprechenden Lage eine Verbindung zum Anschluß des Rücklaufkanals, die anderen radialen in einer hohem Druck entsprechenden Lage zum radialen Anschluß der ersten Leitung herstellen, und daß eine äußere Ringschulter des Steuerschiebers in einem mit der ersten Leitung verbundenen Ringraum liegt, dessen Druck entgegen gesetzt zur Kraft der Druckfeder auf den Steuer schieber einwirkt.and the control slide is at least almost completely in one position and partially in on in the other is traversed by the pressure medium in a known manner and that the control slide is additional per se has known openings, one of which is an axial position corresponding to a low pressure Connection to the connection of the return channel, the other radial in a corresponding high pressure Establish a position for the radial connection of the first line, and that an outer annular shoulder of the Control slide is located in an annular space connected to the first line, the pressure of which is opposite set to the force of the compression spring acts on the control slide.
Das erfindungsgemäß ausgebildete Schaltventil kann klein gebaut werden, so daß es besonders als selbständiges Bauelement verwendet werden kann. Es ist leicht herzustellen und erlaubt ein leichtes Anschließen der verschiedenen Leitungen.The switching valve designed according to the invention can be built small, so that it is particularly independent Component can be used. It is easy to manufacture and allows easy connection of the various lines.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigtAn embodiment of the invention is shown in the drawing. It shows
Fig. 1 einen Längsschnitt durch ein Schaltventil,1 shows a longitudinal section through a switching valve,
Fig. 2 das Schema einer hydraulischen Anlage mit einem Anwendungsbeispiel für das Ventil nach der Erfindung.Fig. 2 shows the scheme of a hydraulic system with an application example for the valve according to the Invention.
In einem Gehäuse 1, das im wesentlichen zylindrischIn a housing 1 which is essentially cylindrical
Schaltventil,
insbesondere für hydraulische AntriebeSwitching valve,
especially for hydraulic drives
Anmelder:Applicant:
Robert Bosch G.m.b.H.,
Stuttgart-W, Breitscheidstr. 4Robert Bosch GMBH,
Stuttgart-W, Breitscheidstr. 4th
Eberhard Korkowski, Stuttgart-Feuerbach, und Rudolf Reichert, Stuttgart, sind als Erfinder genannt wordenEberhard Korkowski, Stuttgart-Feuerbach, and Rudolf Reichert, Stuttgart, have been named as inventors
ist, liegt eine durch die ganze Länge führende Bohrung 2. In ihr rechtes Ende ist ein Anschluß stück 3 eingeschraubt, an dem ein Rohr befestigt werden kann. Das linke Ende der Bohrung 2 wird durch einen Stopfen 4 verschlossen.is, is a leading through the entire length hole 2. In its right end, a connection piece 3 is screwed to which a pipe can be attached. The left end of the bore 2 is closed by a plug 4 .
In der Bohrung 2 ist ein rohrförmiger Schieber 5 gleitend geführt, in dem nahe seinem rechten Ende Querbohrungen 6 angebracht sind. Die Bohrung 7 des Schiebers ist in einem Teil 8 erweitert, so daß eine Schulter 9 entsteht. Gegen diese Schulter und ein Sackloch 10 des Stopfens 4 stützen sich die Enden einer Druckfeder 11 ab, die den Schieber nach rechts zu bewegen sucht, bis er mit seiner Stirnseite an dem Anschlußstück 3 anliegt.In the bore 2 , a tubular slide 5 is slidably guided, in which transverse bores 6 are made near its right-hand end. The bore 7 of the slide is widened in a part 8 , so that a shoulder 9 is formed. The ends of a compression spring 11 are supported against this shoulder and a blind hole 10 in the plug 4 , which spring seeks to move the slide to the right until its end face rests against the connecting piece 3.
Der Schieber 5 hat einen links liegenden Abschnitt 12 mit größerem Außendurchmesser, der mit einer Schulter 13 in den rechten Abschnitt 14 mit kleinerem Außendurchmesser übergeht. Beide Abschnitte liegen . dichtend in entsprechenden Teilen der Bohrung 2. The slide 5 has a left-hand section 12 with a larger outer diameter, which merges with a shoulder 13 into the right-hand section 14 with a smaller outer diameter. Both sections lie. sealing in corresponding parts of the bore 2.
Das Gehäuse 1 hat auf seiner Oberseite einen Fortsatz 15, auf der Unterseite einen Fortsatz 16. Durch den Fortsatz 15 führen eine Ouerbohrung 17 in den linken Teil der Bohrung 2 und eine Querbohrung 18 in den Teil der Bohrung 2, der den Abschnitt 14 des Schiebers umgibt. Von diesem Abschnitt geht auch eine durch den Fortsatz 16 führende Bohrung 19 aus. An den äußeren Enden der Bohrungen 17,18,19 sind Anschlußstücke 20, 21, 22 eingesetzt, an denen Rohre befestigt werden können.The housing 1 has an extension 15 on its upper side and an extension 16 on the underside. Through the extension 15 , an Ouerbohr 17 lead into the left part of the bore 2 and a transverse bore 18 into the part of the bore 2, which the section 14 of the slide surrounds. A bore 19 leading through the extension 16 also extends from this section. At the outer ends of the bores 17 , 18, 19 connecting pieces 20, 21, 22 are used, to which pipes can be attached.
Die AVirkungsweise des Ventils soll an einer Anlage erläutert werden, die in Fig. 2 dargestellt ist.The operation of the valve will be explained using a system which is shown in FIG.
Eine Pumpe 30 ist über eine Leitung 31 mit einem Steuergerät 32 verbunden, das die zugeführte Flüssigkeit je nach der Stellung eines Handhebels 33 in eineA pump 30 is connected via a line 31 to a control device 32 , which depending on the position of a hand lever 33 in a
809 750/177809 750/177
Claims (2)
Deutsche Patentschriften Nr. 874 277, 859 245,
913;Considered publications:
German patents No. 874 277, 859 245,
913;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB35441A DE1051125B (en) | 1955-04-23 | 1955-04-23 | Switching valve, especially for hydraulic drives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB35441A DE1051125B (en) | 1955-04-23 | 1955-04-23 | Switching valve, especially for hydraulic drives |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1051125B true DE1051125B (en) | 1959-02-19 |
Family
ID=6964592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB35441A Pending DE1051125B (en) | 1955-04-23 | 1955-04-23 | Switching valve, especially for hydraulic drives |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1051125B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3349670A (en) * | 1965-12-20 | 1967-10-31 | Deere & Co | Hydraulic control valve |
US4430926A (en) * | 1976-06-04 | 1984-02-14 | The Steel Engineering Company Limited | Hydraulic rotary-percussive machines |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE559913C (en) * | 1929-02-19 | 1932-09-26 | Peter Langen Sohn G M B H | Piston pressure regulator for distributing the compressed air in pipe networks |
DE859245C (en) * | 1950-11-28 | 1952-12-11 | Alois Dipl-Ing Siebeck | Pipe shut-off device for pressure medium lines |
DE874277C (en) * | 1951-10-19 | 1953-04-23 | Hans Still Ag | Hydraulic lifting device for stacking devices |
DE1689011U (en) * | 1951-07-28 | 1954-12-16 | Voith Gmbh J M | SELF-ACTING PRESSURE ACTUATED TWO-WAY PISTON VALVE. |
-
1955
- 1955-04-23 DE DEB35441A patent/DE1051125B/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE559913C (en) * | 1929-02-19 | 1932-09-26 | Peter Langen Sohn G M B H | Piston pressure regulator for distributing the compressed air in pipe networks |
DE859245C (en) * | 1950-11-28 | 1952-12-11 | Alois Dipl-Ing Siebeck | Pipe shut-off device for pressure medium lines |
DE1689011U (en) * | 1951-07-28 | 1954-12-16 | Voith Gmbh J M | SELF-ACTING PRESSURE ACTUATED TWO-WAY PISTON VALVE. |
DE874277C (en) * | 1951-10-19 | 1953-04-23 | Hans Still Ag | Hydraulic lifting device for stacking devices |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3349670A (en) * | 1965-12-20 | 1967-10-31 | Deere & Co | Hydraulic control valve |
US4430926A (en) * | 1976-06-04 | 1984-02-14 | The Steel Engineering Company Limited | Hydraulic rotary-percussive machines |
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