EP1212537B1 - Wellenlagerung - Google Patents
Wellenlagerung Download PDFInfo
- Publication number
- EP1212537B1 EP1212537B1 EP00958486A EP00958486A EP1212537B1 EP 1212537 B1 EP1212537 B1 EP 1212537B1 EP 00958486 A EP00958486 A EP 00958486A EP 00958486 A EP00958486 A EP 00958486A EP 1212537 B1 EP1212537 B1 EP 1212537B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- piston
- actuator according
- cylinder
- axis
- 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
Links
Images
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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
Definitions
- the present invention relates to a pneumatic Actuator with the features of the preamble of the claim 1.
- Such an actuator is from the German Utility model G9014487.2 and known from the publication US-17-4167 897.
- the output shaft with two end shields becomes actuators stored in the housing.
- the end shields are made by the Inside, which forms the cylinder, in the housing used, and the shaft is also from the inside with external circlips or snap rings in their Fixed axial direction.
- the assembly of the bearings and the Circlips from the working area of the cylinder a relatively difficult manual task, which causes undesirable costs.
- the groove can be particularly simple in the manufacture of the Well be attached if it is a wraparound recessed groove.
- a symmetrical arrangement which allows the use of two identical pistons, results when each piston has a total of two Toothing adjacent webs. It can also be provided that the work space in the area of Bearings of the shaft in each in a groove sealing rings made of rubber or a Plastic is sealed from the outside.
- a particularly advantageous method for assembling a so far described actuator results if first the shaft is inserted into the bearings and then the piston or pistons in engagement with the shaft brought so that the shaft without further Fasteners fixed in the axial direction and is held in particular in the storage locations.
- Figure 1 is a pneumatic according to the invention Actuator with a housing 1, one in the housing an axis 2 rotatably mounted shaft 3 and two Pneumatic pistons 4 and 5 illustrated.
- the housing 1 forms a cylindrical bore 6 on its inside, in which the pistons 4 and 5 to form a work space are used sealingly.
- the longitudinal axis of hole 6 is oriented perpendicular to the plane of the drawing in FIG.
- the pistons 4 and 5 are in the illustration according to FIG. 1 cut in the area of their engagement with the shaft 3.
- the pistons 4 and 5 each carry one Straight toothing in the manner of a rack 20, which engages with the toothing 12 of the shaft 3 stands.
- the axial edges of the toothing 20 are adjacent each have a web 21 which is connected to the piston 4 or 5 is integrally formed and in the grooves 11 and 13th intervenes.
- the housing 1 itself has one in the direction the through axis 2 through hole that the Center axis of the cylinder 6 in the middle and vertically cuts.
- This bore forms bearing points 22 which the bearings 10 and 14 of the shaft 3 together one Plain bearing for the rotation of shaft 3 about axis 2 forms.
- the interior is in the area of the bearing points 22 of the cylinder 6 to the atmosphere with not shown sealants, for example in the form of O-rings, sealed.
- FIG. 2 shows the actuator according to FIG. 1 in one Cross section along the axis of the cylinder 6.
- the axis 2 of the shaft 3 is in the illustration according to FIG. 2 oriented perpendicular to the Zeirchen plane. Same Components have the same reference numbers.
- Figure 2 illustrates how the pistons 4 and 5 die Surround shaft 3 symmetrically, the pistons 4 and 5 carry Piston bottoms cooperating sealingly with the cylinder 6 30, where the rack-like area with the Toothing 20 connects.
- the housing 1 itself is on the End faces of the cylinder bore 6 with plate-shaped Cylinder heads 31 closed.
- the pistons 4, 5, the Limit cylinder bore 6 and the cylinder heads 31 a total of three work rooms 32, 33 and 34, of which the work rooms 32 and 34 pneumatically parallel are switched and the workspace 33 separately Pressure can be applied.
- Corresponding connection bores for workrooms 32, 33 and 34 are with the Reference numbers 35, 36 and 37 marked.
- this actuator is installed by first in the housing 1, more specifically, in the Through hole with the bearings 22, the shaft 3 in Direction of axis 2 is inserted until the position 1 is reached. Then the open Ends of the cylinder bore 6 ago a piston to each Inserted side of the shaft 3 so that the teeth 20 engage synchronously with the toothing 12. At the same time, they engage parallel to the toothing 12 extending webs 21 in the grooves 11, 13. The pistons 4, 5 are then symmetrical in the hole 6 pressed in, whereby the shaft 3 about its axis 2 is rotated, the teeth 12 and 20 into each other engage and slide the webs 21 into the grooves 11, 13. By the positive engagement of the webs 21 in the Grooves 11, 13 is the shaft in the direction of axis 2 fixed without the need for additional fasteners would. The cylinder 6 is now with the cylinder heads 31st sealed and the necessary pneumatic Connections provided.
- the grooves be as in this Embodiment shown laterally to the Adjacent teeth 12 and pistons 4 and 5 each have two webs 21.
- the axial guidance of the shaft 3 is then. in the Operation caused only by the flanks of the pistons.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Electrically Operated Instructional Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
- Figur 1:
- Einen Querschnitt durch einen erfindungsgemäßen Aktuator entlang der Axialrichtung der Welle bei Betrachtung in Richtung der Längsachse des Zylinders; sowie
- Figur 2:
- einen Querschnitt durch einen Aktuator entlang der Längsachse des Zylinders, wobei die Betrachtungsrichtung mit der Axialrichtung der Welle zusammenfällt.
Claims (11)
- Pneumatischer Aktuator mit einem Gehäuse (1), das einen pneumatischen Zylinder (6) umfaßt, mit wenigstens einem in dem Zylinder (6) in Richtung der Achse des Zylinders (6) beweglichen Kolben (4,5), der mit dem Zylinder (6) einen Arbeitsraum (32,33,34) begrenzt, wobei der Kolben (4,5) eine in Richtung der Achse verlaufende Verzahnung (20) trägt, und mit einer um eine Axialrichtung (2) drehbaren Welle (3), deren Axialrichtung (2) senkrecht zu der Achse ausgerichtet ist und die eine Verzahnung (12) trägt, die mit der Verzahnung (20) des Kolbens (4,5) im Eingriff steht, dadurch gekennzeichnet, daß der Kolben (4, 5) die Welle (3) in ihrer Axialrichtung (2) formschlüssig fixiert.
- Aktuator nach Anspruch 1, dadurch gekennzeichnet., daß die Welle (3) wenigstens eine in Umfangsrichtung ausgerichtete Nut (11,13) aufweist, die mit einem in Achsrichtung verlaufenden Steg (21) des Kolbens (4,5) in Eingriff steht.
- Aktuator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Welle (3) zwei Lagerbereiche (10, 14) aufweist, die Bereiche des größten Durchmesser der Welle (3) bilden.
- Aktuator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Welle (3) in zwei Lagerstellen (22) unmittelbar in dem Gehäuse (1) gelagert ist.
- Aktuator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lagerstellen (10, 14) der Welle (3) im wesentlichen den gleichen Durchmesser aufweisen.
- Aktuator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Nut (11, 13) eine umlaufend eingestochene Nut ist.
- Aktuator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeder Kolben (4,5) insgesamt zwei der Verzahnung (20) benachbarte Stege 121) aufweist.
- Aktuator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kolben (4,5) aus einem Kunststoff gefertigt ist.
- Aktuator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Arbeitsraum (33) im Bereich der Lagerstellen (11,14) der Welle (3) mittels in jeweils einer Nut der Welle (3) einliegenden Dichtringen gegenüber dem Außenraum abgedichtet ist.
- Verfahren zur Montage eines Aktuators nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zunächst die Welle (3) in die Lagerstellen (22) eingeführt wird und danach der oder die Kolben (4, 5) in Eingriff mit der Welle (3) gebracht werden.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet , daß die Welle (3) ohne weitere Befestigungsmittel in den Lagerstellen (22) gehalten wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19940644 | 1999-08-26 | ||
DE19940644A DE19940644A1 (de) | 1999-08-26 | 1999-08-26 | Wellenlagerung |
PCT/EP2000/008191 WO2001014751A1 (de) | 1999-08-26 | 2000-08-22 | Wellenlagerung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1212537A1 EP1212537A1 (de) | 2002-06-12 |
EP1212537B1 true EP1212537B1 (de) | 2003-06-04 |
Family
ID=7919777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00958486A Expired - Lifetime EP1212537B1 (de) | 1999-08-26 | 2000-08-22 | Wellenlagerung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1212537B1 (de) |
AT (1) | ATE242433T1 (de) |
AU (1) | AU6998500A (de) |
DE (2) | DE19940644A1 (de) |
ES (1) | ES2195932T3 (de) |
WO (1) | WO2001014751A1 (de) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982725A (en) * | 1974-06-27 | 1976-09-28 | Keystone International, Inc. | Valve actuator |
SE7606962L (sv) * | 1975-06-19 | 1976-12-20 | Norbro Pneumatics Ltd | Roterbart manoverdon |
NL174580C (nl) * | 1975-10-21 | 1984-07-02 | El O Matic Bv | Inrichting voor een zwenkbeweging veroorzakende aandrijving. |
US4545288A (en) * | 1982-05-25 | 1985-10-08 | Rodyne Limited | Quarter turn actuators |
US4970944A (en) * | 1985-02-07 | 1990-11-20 | Conbraco Industries, Inc. | Rotary actuator |
IT1217711B (it) * | 1988-05-24 | 1990-03-30 | Aurelio Messina | Attuatore perfezionato per l'azionamento,in apertura ed in genere |
US5003864A (en) * | 1989-12-28 | 1991-04-02 | Hoke Incorporated | Geared air actuator |
DE9014487U1 (de) * | 1990-10-19 | 1991-05-02 | Alfa Laval Flow GmbH, 40549 Düsseldorf | Im Gehäuse eines Druckraumes drehbar gelagerte Welle |
SE470496B (sv) * | 1992-10-16 | 1994-06-06 | Ingf Rason Ab | Vriddon |
DE9314410U1 (de) * | 1993-09-24 | 1994-10-13 | Revo Antriebstechnik GmbH, 41812 Erkelenz | Druckmittelbetätigter Stellantrieb |
-
1999
- 1999-08-26 DE DE19940644A patent/DE19940644A1/de not_active Withdrawn
-
2000
- 2000-08-22 AT AT00958486T patent/ATE242433T1/de not_active IP Right Cessation
- 2000-08-22 WO PCT/EP2000/008191 patent/WO2001014751A1/de active IP Right Grant
- 2000-08-22 EP EP00958486A patent/EP1212537B1/de not_active Expired - Lifetime
- 2000-08-22 AU AU69985/00A patent/AU6998500A/en not_active Abandoned
- 2000-08-22 ES ES00958486T patent/ES2195932T3/es not_active Expired - Lifetime
- 2000-08-22 DE DE50002472T patent/DE50002472D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU6998500A (en) | 2001-03-19 |
DE50002472D1 (de) | 2003-07-10 |
WO2001014751A1 (de) | 2001-03-01 |
DE19940644A1 (de) | 2001-03-01 |
ATE242433T1 (de) | 2003-06-15 |
ES2195932T3 (es) | 2003-12-16 |
EP1212537A1 (de) | 2002-06-12 |
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