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DE20116947U1 - Schnellauskippventil - Google Patents

Schnellauskippventil

Info

Publication number
DE20116947U1
DE20116947U1 DE20116947U DE20116947U DE20116947U1 DE 20116947 U1 DE20116947 U1 DE 20116947U1 DE 20116947 U DE20116947 U DE 20116947U DE 20116947 U DE20116947 U DE 20116947U DE 20116947 U1 DE20116947 U1 DE 20116947U1
Authority
DE
Germany
Prior art keywords
quick
cylinder
dump valve
valve
oil
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.)
Expired - Lifetime
Application number
DE20116947U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weidemann & Co KG GmbH
Original Assignee
Weidemann & Co KG GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weidemann & Co KG GmbH filed Critical Weidemann & Co KG GmbH
Priority to DE20116947U priority Critical patent/DE20116947U1/en
Publication of DE20116947U1 publication Critical patent/DE20116947U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional 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
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow 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
    • F15B2211/75—Control of speed of the 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

-2-Beschreibung-2-Description

SchnellauskippventilQuick dump valve

Die Erfindung betrifft ein Schnellauskippventil mit den Merkmalen gemäß dem Oberbegriff des Patentanspruchs.The invention relates to a quick-dumping valve with the features according to the preamble of the patent claim.

Bisher wurde bei Druckbeaufschlagung der Kolbenseite des Zylinders über die Druckleitung das von der Kolbenstangenseite verdrängte Öl über die Rückleitung zurück in den Tank geleitet.Previously, when the piston side of the cylinder was pressurized via the pressure line, the oil displaced from the piston rod side was returned to the tank via the return line.

Der Erfindung liegt die Aufgabe zugrunde, die Ausfahrgeschwindigkeit des Zylinders zu erhöhen.The invention is based on the object of increasing the extension speed of the cylinder.

Die Aufgabe wird dadurch gelöst, dass ein Schnellauskippventil (1) (Fig.l) in der RückleitungThe task is solved by installing a quick dump valve (1) (Fig.l) in the return line

(4) (Fig. 1) vorgesehen ist. Dieses leitet bei Nichtbetätigung das von der Kolbestangenseite verdrängte Öl weiterhin zurück in den Tank. Ein Normalbetrieb des Zylinders (3) (Fig.l) ist somit nach wie vor gewährleistet. Bei Betätigung des Schnellauskippventils (1) (Fig.l) wird das verdrängte Öl zusätzlich der Druckleitung (5) (Fig. 1) zur Kolbenseite des Zylinders (3) (Fig. 1) geführt. Dadurch wird ein schnelles Ausfehren des Zylinders (3) (Fig. 1, Fig. 2, Fig. 3) ermöglicht.(4) (Fig. 1). When not actuated, this continues to direct the oil displaced from the piston rod side back into the tank. Normal operation of the cylinder (3) (Fig. 1) is thus still guaranteed. When the quick dump valve (1) (Fig. 1) is actuated, the displaced oil is also guided via the pressure line (5) (Fig. 1) to the piston side of the cylinder (3) (Fig. 1). This enables the cylinder (3) (Fig. 1, Fig. 2, Fig. 3) to be extended quickly.

Die Vorteile liegen in der individuellen Steuerbarkeit (Normalbetrieb - Eilgang) des Zylinders und in der elektrischen Ansteuerbarkeit des Schnellauskippventils.The advantages lie in the individual controllability (normal operation - rapid traverse) of the cylinder and in the electrical controllability of the quick-dump valve.

Ein Ausfuhrungsbeispiel der Erfindung ist in der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.

Es zeigenShow it

Fig.l:Funktionsschema des Schnellauskippventils (1) mjt Steuerventil (2) und Kippzylinder (3).Fig.l: Functional diagram of the quick dump valve (1) with control valve (2) and dump cylinder (3).

Fig.2: Anwendungsbeispiel - Beim Auskippen der Schaufel (6) wird der Zylinder (3) kolbenseitig beaufschlagt. Die erforderliche Ölmenge ist groß und der Auskippvorgang dauert relativ lange. Bei Betätigung des Schnellauskippventils (1) wird die Ölmenge um das von der Kolbenstangenseite verdrängte Öl vermehrt. Die Geschwindigkeit des Auskippens wird somit wesentlich erhöht.Fig.2: Application example - When tipping the bucket (6), the cylinder (3) is pressurized on the piston side. The required amount of oil is large and the tipping process takes a relatively long time. When the quick tipping valve (1) is activated, the amount of oil is increased by the oil displaced from the piston rod side. The speed of the tipping is thus significantly increased.

Fig. 3 darstellung über die Anordnung und Verschlauchung des Schnellauskippventils (1) in Verbindung mit dem Kippzylinder (3) wobei die Pos. (8) die Kolbenseite des Zylinders (3) und die Pos. (9) die Kolbenstangenseite darstellen. Die Pos. (7) stellt das verdrängte Öl des Zylinders (3) dar.Fig. 3 representation of the arrangement and tubing of the quick dump valve (1) in connection with the dump cylinder (3), where item (8) represents the piston side of the cylinder (3) and item (9) represents the piston rod side. Item (7) represents the displaced oil of the cylinder (3).

• · ■· ■

Claims (3)

1. Schnellauskippventil zur Steuerung eines hydraulischen Zylinders dadurch gekennzeichnet, dass es den sonst über die Rückleitung (4) (Fig. 1, Fig. 3) direkt in den Tank zurückfließenden Volumenstrom mit in die druckbeaufschlagte Druckleitung (5) (Fig. 1, Fig. 3) führt. 1. Quick dump valve for controlling a hydraulic cylinder, characterized in that it guides the volume flow which would otherwise flow directly back into the tank via the return line ( 4 ) ( Fig. 1, Fig. 3) into the pressurized pressure line ( 5 ) ( Fig. 1, Fig. 3). 2. Schnellauskippventil nach Anspruch 1, dadurch gekennzeichnet, dass es zum Einbau in die Rückleitung (4) (Fig. 1, Fig. 3) von der Kolbenstangenseite (9) (Fig. 3) des Zylinders (3) (Fig. 1, Fig. 2, Fig. 3) vorgesehen ist. 2. Quick dump valve according to claim 1, characterized in that it is intended for installation in the return line ( 4 ) ( Fig. 1, Fig. 3) from the piston rod side ( 9 ) ( Fig. 3) of the cylinder ( 3 ) ( Fig. 1, Fig. 2, Fig. 3). 3. Schnellauskippventil nach Anspruch 1 und 2, dadurch gekennzeichnet, dass das Schnellauskippventil (1) (Fig. 1, Fig. 2, Fig. 3) elektrisch ansteuerbar ist. 3. Quick-dumping valve according to claim 1 and 2, characterized in that the quick-dumping valve ( 1 ) ( Fig. 1, Fig. 2, Fig. 3) is electrically controllable.
DE20116947U 2001-10-12 2001-10-12 Schnellauskippventil Expired - Lifetime DE20116947U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20116947U DE20116947U1 (en) 2001-10-12 2001-10-12 Schnellauskippventil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20116947U DE20116947U1 (en) 2001-10-12 2001-10-12 Schnellauskippventil

Publications (1)

Publication Number Publication Date
DE20116947U1 true DE20116947U1 (en) 2002-04-04

Family

ID=7962904

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20116947U Expired - Lifetime DE20116947U1 (en) 2001-10-12 2001-10-12 Schnellauskippventil

Country Status (1)

Country Link
DE (1) DE20116947U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006024731B3 (en) * 2006-05-26 2007-08-16 Cnh Baumaschinen Gmbh Method for aligning equipment tilting on a lifting and lowering structure of a machine e.g. wheel loader comprises connecting hydraulic connections of a tilting cylinder with a hydraulic pump and moving the cylinder into a neutral position

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006024731B3 (en) * 2006-05-26 2007-08-16 Cnh Baumaschinen Gmbh Method for aligning equipment tilting on a lifting and lowering structure of a machine e.g. wheel loader comprises connecting hydraulic connections of a tilting cylinder with a hydraulic pump and moving the cylinder into a neutral position

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20020508

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20050427

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20080428

R158 Lapse of ip right after 8 years

Effective date: 20100501