DE3012859A1 - Power increasing multiple hydraulic ram - has secondary piston working in cylinder formed in main piston rod, giving three cylinder chambers - Google Patents

Power increasing multiple hydraulic ram - has secondary piston working in cylinder formed in main piston rod, giving three cylinder chambers

Info

Publication number
DE3012859A1
DE3012859A1 DE19803012859 DE3012859A DE3012859A1 DE 3012859 A1 DE3012859 A1 DE 3012859A1 DE 19803012859 DE19803012859 DE 19803012859 DE 3012859 A DE3012859 A DE 3012859A DE 3012859 A1 DE3012859 A1 DE 3012859A1
Authority
DE
Germany
Prior art keywords
cylinder
piston rod
piston
multiple hydraulic
cylinder tube
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Withdrawn
Application number
DE19803012859
Other languages
German (de)
Inventor
Georg 8200 Rosenheim Albersinger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19803012859 priority Critical patent/DE3012859A1/en
Publication of DE3012859A1 publication Critical patent/DE3012859A1/en
Withdrawn legal-status Critical Current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
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • 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
    • F15B2211/7055—Linear output members having more than two chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

The multiple hydraulic ram comprises a main cylinder (1) and a plunger-type piston rod also forming a ram cylinder (2). A further piston (3) works in the second cylinder, having a piston rod (4) extending towards the end (A), at which it is sealed by a rod guide and seal. Thus three separate cylinder chambers are formed, those at both ends acting in the thrust direction, and the middle one in the pulling direction. The piston rod (4) can be fixed in a bore in the base of the main cylinder, so as to hold the complete assembly together. It can have the necessary passages for supplying the chambers in the other cylinder (2), all supply unions being situated at one end.

Description

Beschreibung description

Bezeichaung Mehrfachhydraulikzylinder.Designation of multiple hydraulic cylinders.

Beschreibung Hydraulikzylinder gibt es in den vielfältigsten AusfUhrungen, wie einfach wirkend, doppelt wirkend, Teleskop usw. Diese Zylinder haben al) gemeinsam das Merkmal, daß der Querschnitt des größten Kolbens die maximale Hochstleistung in Druckrichtung des Zylinders ergibt. Dadurch ist eine Leistungserhöhung bisher nur durch entweder Durchmesservergrößung, Druckerhöhung oder hintereinander-bzw. parallelschaltung mehrerer Zylinder möglich.Description Hydraulic cylinders are available in a wide variety of designs, like single acting, double acting, telescopic etc. These cylinders have al) in common the feature that the cross-section of the largest piston has the maximum performance results in the pressure direction of the cylinder. This is an increase in performance so far only by either increasing the diameter, increasing the pressure or one after the other or. Several cylinders can be connected in parallel.

Bei meiner neuartigen Zylinderkonstruktion ist trotz gleichbleibender Außenmaße eine Leistungserhöhung von bis zu 70% in Druckrichturlg erreichbar. Er ist einfach-und doppeltwirkend verwendbar. Die Mehrleistung ergibt sich dreh die Mehrfachwirkung des Zylinders. Diese Wirkung wird dadurch erreicht, daß er im Gegensatz zu den bisher üblichen Ausführungen statt einer Kolbenfläche zwei in Druckrichtung zusammenwirkende Kolbenflächen hat, d.h.With my new type of cylinder construction, the Outside dimensions, a performance increase of up to 70% in the pressure direction can be achieved. He can be used single-acting and double-acting. The extra power results from the turn Multiple action of the cylinder. This effect is achieved by being in opposition instead of one piston surface, two in the pressure direction compared to the designs that have been customary up to now has cooperating piston surfaces, i. e.

a) die herkömmliche Kolbenfläche und b) die Fläche eines weiteren in der Kolbenstange angeordneten Kolbens. a) the conventional piston area and b) the area of another piston arranged in the piston rod.

Dazu sind folgende drei Hauptelemente erforderlich: Das Hauptzylinderrohr (1) mit A-seitig geschlossenem Boden und B-seitig angebrachter KolbenstangenfUhrung und -dichtung.This requires the following three main elements: The master cylinder tube (1) with bottom closed on A-side and piston rod guide attached on B-side and seal.

Darin ist ein plungerförmiger Kolben (2), bestehend aus einem außen verchromten und innen gehohntem Zylinder rohr (Kolbenzylinderrohr), welches B-seitig einen geschlossenen Boden und A-seitig ein Kolbenstangenführungs- und -dichtelement (5) aufweist, angeordnet.Inside is a plunger-shaped piston (2) consisting of an outside Chrome-plated cylinder tube (piston cylinder tube) with a honed interior, which is on the B-side a closed base and a piston rod guide and sealing element on the A side (5), arranged.

Wiederum darin befindet sich ein weiterer Kolben (3), verbunden mit einer Kolbenstange (4).Again there is another piston (3) connected to a piston rod (4).

Der Zusammenbau dieser Elemente erfolgt nun folgendermaßen: Der Kolben (3) mit Kolbenstange (4) wird in das Kolbenzylinderrohr (2) eingeschoben, wobei die Kolbenstange in Richtung Seite A zeigt. Das Kolbenzylinderrohr (2) wird mit dem Kolbenstangenführungs- und -dichtelement (5) verschlossen. Nun werden die so zusammenmontierten Elemente in das Hauptzylinderrohr (1) eingeschoben, wobei die Kolbenstange (4) in einer im A-seitigen Zylinderboden befindlichen Bohrung befestigt wird. Durch diese Kolbenstange (4) wird nun der gesamte Zylinder zusammengehalten. Infolge dieser Konstruktion ergeben sich nun drei getrennte Zylinderräume: a) zwischen A-seitigem Zylinderboden und dem Kolbenstangenführungs- und -dichtelement (5) des Kolbenzylinders (2) - wirkungsweise in Druckrichtung, Druckfläche = Querschnittsfläche des Kolbenzylinders (2) abzüglich der Querschnittsfläche der Kolbenstange 4) b) zwischen Kolben (3) und B-seitigem Verschlußboden des Kolbenzylinderrohres (2) - ebenfalls in Druckrichtung wirkend, Druckfläche ist Fläche des Kolbens (3) c) zwischen Kolben (3) und Kolbenstangenftilirungs-und -dichtelement (5) - in Zugrichtung wirkend, Druckfläche = Fläche des Kolbens (3) abzüglich Querschnittsfläche der Kolbenstange (4).The assembly of these elements is now carried out as follows: The piston (3) with piston rod (4) is pushed into the piston cylinder tube (2), whereby the piston rod points towards side A. The piston cylinder tube (2) is with the piston rod guide and sealing element (5) closed. Now they are like that Assembled elements pushed into the master cylinder tube (1), the The piston rod (4) is fastened in a hole in the A-side cylinder base will. The entire cylinder is now held together by this piston rod (4). As a result of this construction, there are now three separate cylinder spaces: a) between A-side cylinder base and the piston rod guide and sealing element (5) of the Piston cylinder (2) - effective in the pressure direction, pressure area = cross-sectional area of the piston cylinder (2) minus the cross-sectional area of the piston rod 4) b) between the piston (3) and the B-side sealing base of the piston cylinder tube (2) - also acting in the pressure direction, the pressure area is the area of the piston (3) c) between Piston (3) and piston rod ventilation and sealing element (5) - acting in the pulling direction, Pressure area = area of the piston (3) minus the cross-sectional area of the piston rod (4).

Addiert man nun beide in Druckrichtung wirkende Flächen, ergibt sich die erhöhte Leistung des Zylinders.If you add the two areas acting in the direction of pressure, you get the increased power of the cylinder.

Die Versorgung der im Kolbenzylinderrohr (2) befindlichen Zylinderräume mit dem Druckmedium erfolgt über in der Kolbenstange (4) angeordnete Kanäle, wobei beide Anschlüsse am A-seitigen Zylinderboden angebracht werden können.The supply of the cylinder spaces located in the piston cylinder tube (2) with the pressure medium takes place via channels arranged in the piston rod (4), wherein both connections can be attached to the A-side cylinder base.

Die wichtigsten Vorteile dieser Zylinderkonstruktion: - Der Leistung entsprechend geringer Herstellungsaufwand infolge nachstehender Merkmale: Kleiner Rohrdurchmesser, Zylinderrohr (1) braucht nicht gehohnt sein, innere Kolbenstange (4) braucht nicht verchromt sein, das Kolbenzylinderrohr (2) ist das einzige aufwendige Bauelement - der Leistung entsprechend wenig Raumbedarf - trotz doppeltwirkender Ausführung großer Kolbenstangendurchmesser, vorteilhaft bei langen Zylindern bezüglich Knicksicherheit - mehrfache Führuni der Kolbens tange - geringes Eigengewicht im Verhältnis zur Leistung.The main advantages of this cylinder design: - The performance correspondingly low manufacturing costs due to the following features: Smaller Tube diameter, cylinder tube (1) need not be honored, inner piston rod (4) does not need to be chrome-plated, the piston-cylinder tube (2) is the only complex one Component - little space required according to the performance - despite double-acting Execution of large piston rod diameters, advantageous for long cylinders with regard to Buckling resistance - multiple guide rails for the piston rod - low dead weight in Relationship to performance.

LeerseiteBlank page

Claims (1)

Schutzansprüche ============================= 1.) Mehrfachhydraulikzylinder, bestehend aus einem Hauptzylinderrohr (1) und einer plungerförmigen Kolbenstange, welche als Kolbenzylinderrohr (2) ausgeführt ist, dadurch gekennzeichnet, daß in diesem Kolbenzylinderrohr ein weiterer Kolben (3) mit zur A-Seite zeigender Kolbenstange (4) angeordnet und A-seitig mit einem Kolbenstangenführungs- und -dichtelement verschlossen ist, woraus sich drei getrennte Zylinderräume ergeben, wobei der A-seitige und der B-seitige zusammen in Druckrichtung und der mittlere Zylinderraum in Zugrichtung wirken 2.) Mehrfachhydraulikzylinder nach Anspruch 1), dadurch gekennzeichnet, daß die Kolbenstange (4) in einer Bohrung im Boden des Hauptzylinderrohres (1) befestigt ist und somit den Zusammenhalt des gesamten Zylinders gewährleistet und daß sie mit den erforderlichen Kanälen versehen ist, welche zur Versorgung der Zylinderräume im Kolbenzylinderrohr (2) mit dem Druckmedium dienen und somit sämtliche BeitungsanschlZsse an der A-Seite des Zylinders angebracht werden können. Protection claims ============================== 1.) Multiple hydraulic cylinders, consisting of a main cylinder tube (1) and a plunger-shaped piston rod, which is designed as a piston cylinder tube (2), characterized in that in this piston-cylinder tube is another piston (3) with the piston rod pointing to the A-side (4) and closed on the A side with a piston rod guide and sealing element is, resulting in three separate cylinder spaces, the A-side and the B-side together in the compression direction and the middle cylinder space in the pulling direction act 2.) Multiple hydraulic cylinder according to claim 1), characterized in that the piston rod (4) is fixed in a hole in the bottom of the master cylinder tube (1) is and thus ensures the cohesion of the entire cylinder and that it is provided with the necessary channels, which are used to supply the cylinder spaces serve in the piston cylinder tube (2) with the pressure medium and thus all supply connections can be attached to the A-side of the cylinder.
DE19803012859 1980-04-02 1980-04-02 Power increasing multiple hydraulic ram - has secondary piston working in cylinder formed in main piston rod, giving three cylinder chambers Withdrawn DE3012859A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803012859 DE3012859A1 (en) 1980-04-02 1980-04-02 Power increasing multiple hydraulic ram - has secondary piston working in cylinder formed in main piston rod, giving three cylinder chambers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803012859 DE3012859A1 (en) 1980-04-02 1980-04-02 Power increasing multiple hydraulic ram - has secondary piston working in cylinder formed in main piston rod, giving three cylinder chambers

Publications (1)

Publication Number Publication Date
DE3012859A1 true DE3012859A1 (en) 1981-10-08

Family

ID=6099130

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803012859 Withdrawn DE3012859A1 (en) 1980-04-02 1980-04-02 Power increasing multiple hydraulic ram - has secondary piston working in cylinder formed in main piston rod, giving three cylinder chambers

Country Status (1)

Country Link
DE (1) DE3012859A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739149A1 (en) * 1995-09-25 1997-03-28 Dk Le Guen Et Hemidy Four-way hydraulic cylinder
DE10108257B4 (en) * 2001-02-21 2009-04-30 Kreato-Fertigungstechnik Gmbh hydraulic cylinders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739149A1 (en) * 1995-09-25 1997-03-28 Dk Le Guen Et Hemidy Four-way hydraulic cylinder
DE10108257B4 (en) * 2001-02-21 2009-04-30 Kreato-Fertigungstechnik Gmbh hydraulic cylinders

Similar Documents

Publication Publication Date Title
DE2229945C2 (en) Impact absorbers for motor vehicle bumpers
DE3240105A1 (en) PISTONLESS CYLINDER
DE2645501A1 (en) VALVE
DE60303092T2 (en) Integrated double-acting hydraulic end stop damper
DE2609817B2 (en) Pistons, especially for a pneumatic cylinder
DE2546940B2 (en) Piston seal
DE2815833C2 (en) Pneumatic working cylinder
DE3012859A1 (en) Power increasing multiple hydraulic ram - has secondary piston working in cylinder formed in main piston rod, giving three cylinder chambers
EP1160451B1 (en) Piston pump
DE1923014U (en) HYDRAULIC PIT STAMP.
DE2116325C3 (en) Brake cylinders, in particular for vehicles
DE2542122A1 (en) Standby hydraulic brake cylinder - has compressed coil spring released manually to provide braking if power supply fails
WO1996011341A1 (en) Servomotor
DE19649178A1 (en) Heavy duty hydraulic or compressed air cylinder
DE1027615B (en) Pit stamp
EP0385188A1 (en) Pressure fluid actuator
DE1937739A1 (en) Load-bearing strut
DE2636117A1 (en) PRESSURE MEDIUM DRIVE WITH OPERATING PISTON
DE4220415A1 (en) Piston and cylinder assembly for vehicle power steering - has guide rings secured to cylinder wall by crimping and piercing.
DE3438892C2 (en)
DE2255049A1 (en) CYLINDER WITH TWO MISCELLANEOUS WORK PISTONS
DE3937233A1 (en) Pressure medium ram without piston rod
DE10051042C2 (en) Drive cylinders for punches, embossing machines, presses and the like
DE611644C (en) Strut for retractable aircraft landing gear
DE1800200A1 (en) Clamping device for machine parts, workpieces or the like.

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee