EP1008748A2 - Axialkolbenmaschine - Google Patents
Axialkolbenmaschine Download PDFInfo
- Publication number
- EP1008748A2 EP1008748A2 EP99124139A EP99124139A EP1008748A2 EP 1008748 A2 EP1008748 A2 EP 1008748A2 EP 99124139 A EP99124139 A EP 99124139A EP 99124139 A EP99124139 A EP 99124139A EP 1008748 A2 EP1008748 A2 EP 1008748A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- axial piston
- piston machine
- machine according
- control disk
- control disc
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
- F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
- F04B1/328—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the axis of the cylinder barrel relative to the swash plate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2042—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2064—Housings
- F04B1/2071—Bearings for cylinder barrels
Definitions
- the invention relates to an axial piston machine according to the preamble of claim 1.
- An axial piston machine of this type is in the DE-AS 1 017 468.
- This is a so-called inclined-axis design with a cylinder drum which slidably receives the pistons in cylinder bores and which can be pivoted by an adjusting device about a pivot axis arranged in the region of the drive disk and can be locked in the respective pivot position.
- an adjusting device By swiveling the cylinder drum out to a greater or lesser extent, the throughput volume of the axial piston machine can be adjusted, as is known per se.
- the axial piston machine forms the cylinder drum with a control disc on the Front side of the cylinder drum is arranged, which the Drive disk is turned away, a swivel unit that points and is pivotable here, the control disc on a the pivot axis curved in a circular arc Bearing sliding surface of a bearing wall of the housing Axial piston machine abuts and is slidably guided. Consequently, the control disc is between the bearing sliding surface and the associated face of the cylinder drum positioned. This positioning and the attachment to the Bearing sliding surface can function in the Axial piston machine cannot always be guaranteed.
- the invention has for its object in a Axial piston machine of the type specified in the Support the control disc to improve and stabilize.
- the curvature of the parallel to the bearing sliding surface Support surface a support point for the control disc Available with the control disc in each Pivot position is supported in its central area, causing the above-described harmful tilting moments are reduced and the support of the control disc in desired sense is improved and stabilized.
- the the improvement and stabilization will also be sought reached when the length of the support surface is slightly shorter is dimensioned as that by the swivel angle range given dimensions because of the rounding of the Support surface this even with a somewhat shorter length is effective.
- the bearing sliding surface can be flat extend or a curvature corresponding to the support surface exhibit.
- it is a particularly simple one Design given, in which each pivot position an at least punctiform or in a parallel Arrangement of the shoulder surface and the support surface line-shaped arrangement of these surfaces results.
- the invention is characterized by a simple, small and inexpensive to manufacture construction that good in the design of an axial piston machine can be integrated and is also easy to assemble or can be dismantled and is of safe function.
- Axial piston machine 1 is in a sliding axis construction, more precisely in swivel slide design.
- the axial piston machine 1 comprises one in a housing 2 in Rolling bearings 3, 4 rotatably mounted drive shaft 5, on which a drive shaft flange or a so-called drive pulley 6 is arranged or molded.
- a housing interior in which a cylinder drum 7, in which has several cylinder bores 8, 9 on a pitch circle are evenly distributed, is arranged.
- the articulated on the drive pulley 6 are supported, e.g. B. by means of ball heads 12, 13 which in spherical bearings 14, 15 of the drive pulley 6 are supported are.
- the cylinder drum 7 is via a central pin 16 mounted in the drive pulley 6, a ball head 17 of the Center pin 16 in a spherical bearing 18
- Drive pulley 6 is also pivotally mounted.
- the cylinder drum 7 is based on a known Control disc 19 provided with control kidneys on one Bearing sliding surface 21, which on a bearing wall 22nd is formed by a housing wall, in particular a so-called end plate of a pot-shaped housing 2 can be formed.
- the throughput volume of the axial piston machine 1 is in known manner by pivoting the Cylinder drum 7 and the control disk 19, the one Form swivel unit with respect to the central axis of the Drive shaft 5 adjustable.
- the maximum Throughput volume or the minimum throughput volume an externally adjustable threaded bolt adjustable, the one movement stop A1, A2 each for the control disc 19 form.
- the swivel unit is one Adjustment device 23 provided in the present Configuration is arranged in a housing 24, which as Housing wall forms the bearing wall 22.
- a housing 24 is a in or parallel to the swivel plane E transverse to the axis of rotation the cylinder drum 7 slidably mounted to and fro Adjusting piston provided with an adjusting member 25 articulates on the control disk 19.
- the Adjustment member 25 can be moved through a cross from the adjustment piston protruding adjustment pin formed on his free end a spherical or spherical segment-shaped Adjustment head 26 which has a low in him Engagement recess 27 in the movement play
- Control disc 19 surrounds and one between the Control disc 19 and the adjusting piston 24 existing Pass-through recess 28 in the associated wall of the Passes through housing 24.
- the bearing sliding surface 21 is a concave base surface Guide recess 29 in the bearing wall 22, the parallel to the pivot plane E arranged lateral guide surfaces 21a, the control disk 19 laterally with little Lead movement game.
- the cylinder drum 7 has the control disk 19 on it facing a concave, spherical Bearing sliding surface 7b and it lies on one corresponding to convex spherical bearing surface 19a Control disc 19 on. This points on its outside at least one of the bearing sliding surface 21 corresponding curved sliding surface 19b.
- the control disc 19 is a generally designated 31 Assigned holding device that on the bearing wall 22nd is arranged or attached and the control disc 19 engages behind its side facing the cylinder drum 7 and thereby secures to the inward side.
- a holding part 32 can be used Hold function that the control disc 19 with a Reaches behind shoulder surface 33 which is parallel to Bearing sliding surface 21 curved and thus runs in the form of an arc of a circle, the Shoulder surface 33 opposite surface part of the Control disc 19 with the shoulder surface 33 cooperating support element 34 with a support surface 34a forms.
- the support surface 34a can - at right angles to Seen swivel plane E - just extend it 4, or it can - seen perpendicular to the swivel plane E - parallel to Curvature of the shoulder surface 33 and thus the Correspond to the curvature of the shoulder surface 33, as shown in FIG. 5 shows.
- the shoulder surface 33 and the support surface 34 are preferably surfaces that are perpendicular to the axis of rotation the cylinder drum 7 and in or parallel to the pivot plane E seen - extend at right angles to swivel plane E.
- the support surface 34a seen - at right angles to the swivel plane - straight extends, there is a linear system between the shoulder surface 33 and the support surface 34a.
- the Holding device 31 two holding parts 32, both of them Sides of the pivot plane E arranged on the bearing wall 22 or are attached and the control disc 19 around the c designated dimension in the lateral recesses 19c Overlap control disc 19.
- the holding parts 32 can be strip-shaped parts which, for. B. by screws 36 with the bearing wall 22 screwed and optionally by pins 36a are pinned.
- the support surface 34a is each at least in the area overlapping the control disk 19 (Dimension c) arranged.
- the entire base of the holding parts 32 accordingly shaped like a cylinder section, d. H. it is through one extending parallel to the bearing sliding surface 21 cylindrical section-shaped surface.
- the associated contact surface 37 on the bearing wall 22 form with a corresponding shape, whereby results in a recess 38, in each of which the associated Holding part 32 can be used.
- the width of the recess 38 is dimensioned smaller by the dimension c than the width d of the Holding part 32, so that there is a positive Positioning for the holding part 32 in the transverse direction results.
- the at least one screw 36 or pin 36a fixes the respective holding part 32 in its parallel to the pivot plane E extending longitudinal direction.
- 32a are Recesses on the inside of the holding parts 32 for the Cylinder drum 7 arranged, in which the cylinder drum 7th immersed to save overall length. 3 is for the purpose Simplified representation, the recess 32a broken away shown.
- FIGS. 3 to 5 there are the holding parts 32 centrally or symmetrically to one Swivel plane E arranged at right angles and the axis of rotation 7a of the cylinder drum longitudinally intersecting transverse plane E1, if the cylinder drum 7 in its pivoted position or zero position.
- Such an arrangement is also suitable for an axial piston machine 1, the Cylinder drum 7 beyond the zero position to the other Side can be pivoted z. B. for the purpose of reversing the direction of rotation.
- the holding parts 32 only in from the central axes 7a in the swung in and out Position of the cylinder drum 7 included Angular ranges can be arranged. If the length L of the Holding parts 32 is approximately at least twice as large the resulting length of an angular range e, then suitable the two previously described swivel ranges.
- Fig. 4 makes it clear that in the The inventive control disc 19 in each pivot position in its middle, its support element 34 forming area B and thus centered by the respective Holding part 32 is supported.
- the Assemble or disassemble the control disc easily, as the Holding parts 32 before mounting the control disk 19 can be pre-assembled, and that can Control disc 19 along the arc of the swivel guide track 35 insert into the guide thus formed.
- the adjusting member 25 is designed so that it is then assembled can be z. B. through the as a through hole in the Control disc 19 formed engagement recess 27.
- Control disc 19 by means of the holding device 31 positively held in their working position in which they bears flat against the bearing sliding surface 21.
- a pressing device 41 This can e.g. B. by a between the central pin 16 and the cylinder drum 7 effective spring can be formed.
- the center pin 16 has an in Direction towards the control disc 19 open coaxial blind hole 42 on, in which a compression spring 43 is arranged, the Control disc 19 facing end against a shoulder surface 44 of the cylinder drum 7 is biased, the z. B. by one arranged in the cylinder drum 7 and on one shoulder-supporting disc 45 may be formed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
DE-AS 1 017 468 beschrieben. Hierbei handelt es sich um eine sogenannte Schrägachsenbauweise mit einer die Kolben in Zylinderbohrungen verschiebbar aufnehmenden Zylindertrommel, die durch eine Verstellvorrichtung um eine im Bereich der Antriebsscheibe angeordneten Schwenkachse verschwenkbar und in der jeweiligen Schwenkstellung feststellbar ist. Durch ein mehr oder weniger weites Ausschwenken der Zylindertrommel läßt sich das Durchsatzvolumen der Axialkolbenmaschine einstellen, wie es an sich bekannt ist.
- Fig. 1
- eine Axialkolbenmaschine in vorbekannter Bauweise und im Axialschnitt, die den Stand der Technik verdeutlicht;
- Fig. 2
- den Teilschnitt II-II in Fig. 1 in erfindungsgemäßer Ausgestaltung;
- Fig. 3
- die erfindungsgemäße Ausgestaltung in der Blickrichtung auf eine Steuerscheibe der Axialkolbenmaschine von innen entsprechend einem in Fig. 2 dargestellten Blickrichtungspfeil X;
- Fig. 4
- den Teilschnitt IV-IV in Fig. 3;
- Fig. 5
- eine der Fig. 4 entsprechende Schnittdarstellung in abgewandelter Ausgestaltung der Erfindung.
Claims (12)
- Axialkolbenmaschine (1) mit einer in einem Gehäuse (2) drehbar gelagerten Zylindertrommel (7), in der in Zylinderbohrungen (8) Kolben (9) verschiebbar sind, deren Kolbenenden an einer drehbar gelagerten Triebscheibe (6) schwenkbar abgestützt sind, wobei die Zylindertrommel (7) und eine an der der Triebscheibe (6) abgewandten Seite der Zylindertrommel (7) angeordnete Steuerscheibe (19) durch eine Verstellvorrichtung (21) in einer Schwenkebene (E) quer verschwenkbar sind, wobei die Steuerscheibe (18) an einer ihr zugewandten kreisbogenförmig gekrümmten Lagergleitfläche (21) einer Lagerwand (22) in der Schwenkebene (E) schwenkbar gelagert ist, und wobei an der Lagerwand (22) wenigstens ein Halteteil (32) angeordnet ist, das mit einer Schulterfläche (33) wenigstens ein der Zylindertrommel (7) zugewandtes Stützelement (34) an der Steuerscheibe (19) hintergreift,
dadurch gekennzeichnet,
daß die Schulterfläche (33) am Halteteil (32) parallel zur Lagergleitfläche (21) gekrümmt ist und sich wenigstens annähernd in dem Winkelbereich (e) erstreckt, den die Mittelachse (7a) der Steuerscheibe (19) in der aus- und eingeschwenkten Stellung einschließt. - Axialkolbenmaschine nach Anspruch 1,
dadurch gekennzeichnet,
daß die Schulterfläche (33) sich über eine Länge (L) erstreckt, die wenigstens annähernd der sich an ihr ergebenden Abmessung des doppelten Winkelbereichs (e) entspricht. - Axialkolbenmaschine nach Anspruch 2,
dadurch gekennzeichnet,
daß die Schulterfläche (33) symmetrisch zur Mittelachse (7a) der Steuerscheibe (19) in deren eingeschwenkter Stellung oder Null-Stellung angeordnet ist. - Axialkolbenmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß die Schulterfläche (33) und eine das Stützelement (34) bildende Stützfläche (34a) sich - an der zur Mittel-achse (7a) der Steuerscheibe (19) und längs der Schwenkebene (E) gesehen - parallel erstrecken. - Axialkolbenmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß eine das Stützelement (34) bildende Stützfläche (34a) eine ebene Fläche ist, die sich bezüglich der Lagergleitfläche (21) sekantial erstreckt. - Axialkolbenmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß die Stützfläche (34a) parallel zur Schulterfläche (33) gekrümmt ist. - Axialkolbenmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß zwei Halteteile (32) auf beiden Seiten der Schwenkebene (E) angeordnet sind, die die Seitenränder der Steuerscheibe (19) hintergreifen. - Axialkolbenmaschine nach Anspruch 7,
dadurch gekennzeichnet,
daß die Halteteile (32) die Steuerscheibe (19) in seitlichen Ausnehmungen (19c) hintergreifen. - Axialkolbenmaschine nach Anspruch 7 oder 8,
dadurch gekennzeichnet,
daß die Halteteile (32) durch sich parallel zur Schwenkebene (E) erstreckende leistenförmige Teile gebildet sind. - Axialkolbenmaschine nach einem der Ansprüche 7 bis 9,
dadurch gekennzeichnet,
daß die Halteteile (32) besondere Bauteile sind, die lösbar an der Lagerwand (22) befestigt, insbesondere verschraubt sind. - Axialkolbenmaschine nach einem der Ansprüche 7 bis 10,
dadurch gekennzeichnet,
daß die Halteteile (32) in Ausnehmungen (38) der Lagerwand (22) teilweise oder vollständig versenkt angeordnet sind. - Axialkolbenmaschine nach einem der Ansprüche 7 bis 11,
dadurch gekennzeichnet,
daß die Schulterfläche (33) sich jeweils über die gesamte zugehörige Seite des Halteteils (32) erstreckt und deren Bodenfläche bildet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19857366A DE19857366C2 (de) | 1998-12-11 | 1998-12-11 | Axialkolbenmaschine |
DE19857366 | 1998-12-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1008748A2 true EP1008748A2 (de) | 2000-06-14 |
EP1008748A3 EP1008748A3 (de) | 2000-12-20 |
EP1008748B1 EP1008748B1 (de) | 2005-02-09 |
Family
ID=7890853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99124139A Expired - Lifetime EP1008748B1 (de) | 1998-12-11 | 1999-12-02 | Axialkolbenmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1008748B1 (de) |
DE (2) | DE19857366C2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004109107A1 (de) * | 2003-06-11 | 2004-12-16 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit versetztem positionierelement und steuerscheibe für eine solche axialkolbenmaschine |
WO2005106245A1 (en) * | 2004-04-21 | 2005-11-10 | Government Of The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency | Large angle sliding valve plate pump/motor |
WO2012150069A1 (de) * | 2011-05-02 | 2012-11-08 | Zf Friedrichshafen Ag | Axialkolbenmaschine in schrägachsenbauweise |
US11105320B2 (en) | 2018-08-22 | 2021-08-31 | Robert Bosch Gmbh | Control plate for axial piston machine and axial piston machine having a control plate |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010026645A1 (de) | 2010-07-09 | 2012-01-12 | Robert Bosch Gmbh | Hydraulische Energiewandlungsmaschine |
DE102018213385A1 (de) * | 2018-08-09 | 2020-02-13 | Robert Bosch Gmbh | Entspannungsausnehmung in Steuerscheibe für Axialkolbenmaschine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1017468B (de) * | 1953-01-24 | 1957-10-10 | Georg Wiggermann | Axialkolbenmaschine |
US3233555A (en) * | 1962-08-16 | 1966-02-08 | Gunnar A Wahlmark | Variable displacement fluid device |
GB1552350A (en) * | 1975-10-07 | 1979-09-12 | Renault | Axial piston hyraulic machines |
US4793240A (en) * | 1985-06-26 | 1988-12-27 | Kabushiki Kaisha Komatsu Seisakusho | Adjustable device for axial piston pump/motor of a tilting axis type |
-
1998
- 1998-12-11 DE DE19857366A patent/DE19857366C2/de not_active Expired - Fee Related
-
1999
- 1999-12-02 EP EP99124139A patent/EP1008748B1/de not_active Expired - Lifetime
- 1999-12-02 DE DE59911593T patent/DE59911593D1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1017468B (de) * | 1953-01-24 | 1957-10-10 | Georg Wiggermann | Axialkolbenmaschine |
US3233555A (en) * | 1962-08-16 | 1966-02-08 | Gunnar A Wahlmark | Variable displacement fluid device |
GB1552350A (en) * | 1975-10-07 | 1979-09-12 | Renault | Axial piston hyraulic machines |
US4793240A (en) * | 1985-06-26 | 1988-12-27 | Kabushiki Kaisha Komatsu Seisakusho | Adjustable device for axial piston pump/motor of a tilting axis type |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004109107A1 (de) * | 2003-06-11 | 2004-12-16 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit versetztem positionierelement und steuerscheibe für eine solche axialkolbenmaschine |
US7363849B2 (en) | 2003-06-11 | 2008-04-29 | Brueninghaus Hydromatik Gmbh | Axial piston machine with offset positioning element and cam disk for such an axial piston machine |
WO2005106245A1 (en) * | 2004-04-21 | 2005-11-10 | Government Of The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency | Large angle sliding valve plate pump/motor |
WO2012150069A1 (de) * | 2011-05-02 | 2012-11-08 | Zf Friedrichshafen Ag | Axialkolbenmaschine in schrägachsenbauweise |
US11105320B2 (en) | 2018-08-22 | 2021-08-31 | Robert Bosch Gmbh | Control plate for axial piston machine and axial piston machine having a control plate |
Also Published As
Publication number | Publication date |
---|---|
DE19857366C2 (de) | 2000-10-19 |
DE59911593D1 (de) | 2005-03-17 |
DE19857366A1 (de) | 2000-06-29 |
EP1008748B1 (de) | 2005-02-09 |
EP1008748A3 (de) | 2000-12-20 |
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