DE1297990B - Connection socket between each cylinder of the cylinder drum and the control disk of a pressure fluid swashplate axial piston machine with a drive shaft supported on two bearings - Google Patents
Connection socket between each cylinder of the cylinder drum and the control disk of a pressure fluid swashplate axial piston machine with a drive shaft supported on two bearingsInfo
- Publication number
- DE1297990B DE1297990B DEM63133A DEM0063133A DE1297990B DE 1297990 B DE1297990 B DE 1297990B DE M63133 A DEM63133 A DE M63133A DE M0063133 A DEM0063133 A DE M0063133A DE 1297990 B DE1297990 B DE 1297990B
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- drive shaft
- axial piston
- control disk
- piston machine
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
- F01B3/0052—Cylinder barrel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Description
Die Erfindung betrifft eine längsverschiebliche, federbelastete Verbindungsbuchse zwischen jedem Zylinder der umlaufenden Zylindertrommel und der an ihrer Stirnseite angeordneten Steuerscheibe einer Druckflüssigkeits-Schiefscheiben Axialkolbenmaschine mit zweimal gelagerter Triebwelle.The invention relates to a longitudinally displaceable, spring-loaded connecting socket between each cylinder of the rotating cylinder drum and the one on its face arranged control disk of a hydraulic fluid swashplate axial piston machine with two-bearing drive shaft.
Bei Axialkolbenmaschinen dieser Bauart zeigt sich, daß infolge der Radial-Komponenten der Kolbenkräfte, hervorgerufen durch die Abstützung der Kolben auf der Schiefscheibe, die zweimal gelagerte Welle eine Durchbiegung erfährt, welche sich bis zu einem gewissen Grade auf die Zylindertrommel überträgt und zu einer Verkantung der Steuerfläche gegenüber dem Steuerspiegel führt. Diese Verkantung bringt ein Ansteigen der Leckölverluste und Verschleiß mit sich.In axial piston machines of this type it is found that as a result of Radial components of the piston forces, caused by the support of the pistons on the swash plate, the shaft, which is supported twice, experiences a deflection, which to a certain extent is transferred to the cylinder drum and to a Canting of the control surface relative to the control plate leads. This tilt brings with it an increase in leakage oil losses and wear.
Wie aus der deutschen Patentschrift 1006 262 hervorgeht, hat man diesen Mangel bereits durch Verwendung von Verbindungsbuchsen, die den Abstand zwischen der Zylindertrommel und einer getrennten Steuerscheibe überbrücken, zu vermeiden gesucht. Diese Verbindungsbuchsen sind längsverschiebbar in jede Zylinderbohrung eingesetzt und werden durch den im Inneren des Zylinders herrschendenden Flüssigkeitsdruck und durch Federdruck gegen die Steuerscheibe gepreßt.As can be seen from the German patent specification 1006 262, you have this Deficiency already due to the use of connecting sockets that reduce the distance between bridge the cylinder drum and a separate control disc sought. These connecting bushes can be moved lengthways into each cylinder bore and are used by the fluid pressure inside the cylinder and pressed against the control disk by spring pressure.
Die Verwendung der Verbindungsbuchsen wirft das Problem ihrer Führung in der Zylindertrommel und ihrer Abdichtung, insbesondere gegen Luft auf. Bei hohen Drehzahlen, für die die hier behandelte Bauart der Axialkolbenmaschine wegen der starren Verbindung zwischen Zylindertrommel und Triebwelle und der starren Lagerung der letzteren besonders geeignet ist, verlangen die notwendigerweise hohen Strömungsgeschwindigkeiten eine Betriebsflüssigkeit geringer Viskosität, so daß die Abdichtung zunehmend geringeres Spiel zwischen Zylinderbohrung und Verbindungsbuchse erfordert, wodurch deren erwünschte leichte Längsbeweglichkeit herabgesetzt wird.The use of the connector sockets raises the problem of their guidance in the cylinder drum and its seal, especially against air. At high Speeds for which the type of axial piston machine dealt with here because of the rigid connection between the cylinder drum and drive shaft and the rigid bearing the latter is particularly suitable, require the necessarily high flow velocities an operating fluid of low viscosity, so that the seal is increasingly less Requires clearance between the cylinder bore and the connecting sleeve, which makes their desired slight longitudinal mobility is reduced.
Der Erfindung liegt die Aufgabe zugrunde, eine vollkommene Abdichtung gegen Luft zwischen Verbindungsbuchse und Zylindertrommel zu erreichen und die Buchse in der Zylindertrommel einwandfrei zu führen, so daß die ölkräfte am Steuerspiegel zuverlässig beherrschbar sind.The invention is based on the object of a perfect seal to reach against air between the connecting bushing and the cylinder drum and the bushing to lead properly in the cylinder drum, so that the oil forces on the control plate are reliably controllable.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die in die Zylindertrommelbohrung eingesetzte Verbindungsbuchse zugleich Kolbenlaufbuchse ist.This object is achieved in that the in the Cylinder drum bore used connecting bushing is also the piston liner.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is shown in the drawing and is explained in more detail below.
Die Zeichnung zeigt eine zum Teil geschnittene Gesamtdarstellung einer Axialkolbenmaschine.The drawing shows a partially sectioned overall representation of a Axial piston machine.
Die Zylindertrommel 1 wird von einer Welle 2, mit der sie durch eine Mitnehmerverbindung (Keil) 3 verbunden ist, getragen. Die Welle 2 ist in den Lagern 4, 5 in den Gehäuseteilen 6, 7 gehalten, die durch ein zentrierendes Mittelstück 8 miteinander verbunden sind. In die Bohrungen 9 der Zylindertrommel 1 sind Verbindungsbuchsen 10 eingeschoben, die erfindungsgemäß zugleich Kolbenlaufbuchsen sind. Die Kolben 11, die sich über Gleitschuhe 12 auf einer schrägliegenden Fläche 13 abstützen, gleiten in den Bohrungen 14 der Verbindungsbuchsen 10, die durch starke Federn 15 an die Steuerscheibe 16 angedrückt werden. Letztere gleitet auf dem mit Schlitzen versehenen Steuerspiegel des Gehäuseteils 7 und ist derart mit der Welle 2 verbunden, beispielsweise mit ballig ausgebildeten Lochflanken, daß Wellendurchbiegungen die Steuerscheibe 16 gegenüber dem Steuerspiegel nicht verkanten können.The cylinder drum 1 is carried by a shaft 2 to which it is connected by a driver connection (wedge) 3. The shaft 2 is held in the bearings 4, 5 in the housing parts 6, 7, which are connected to one another by a centering piece 8. In the bores 9 of the cylinder drum 1, connecting bushings 10 are inserted, which according to the invention are at the same time piston liners. The pistons 11, which are supported on an inclined surface 13 via sliding shoes 12 , slide in the bores 14 of the connecting bushes 10, which are pressed against the control disk 16 by strong springs 15. The latter slides on the slotted control plate of the housing part 7 and is connected to the shaft 2, for example with convex hole flanks, so that shaft deflections cannot tilt the control disk 16 relative to the control plate.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM63133A DE1297990B (en) | 1964-11-16 | 1964-11-16 | Connection socket between each cylinder of the cylinder drum and the control disk of a pressure fluid swashplate axial piston machine with a drive shaft supported on two bearings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM63133A DE1297990B (en) | 1964-11-16 | 1964-11-16 | Connection socket between each cylinder of the cylinder drum and the control disk of a pressure fluid swashplate axial piston machine with a drive shaft supported on two bearings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1297990B true DE1297990B (en) | 1969-06-19 |
Family
ID=7310680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM63133A Pending DE1297990B (en) | 1964-11-16 | 1964-11-16 | Connection socket between each cylinder of the cylinder drum and the control disk of a pressure fluid swashplate axial piston machine with a drive shaft supported on two bearings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1297990B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1407047A (en) * | 1919-01-27 | 1922-02-21 | Kenneth M Trowbridge | Variable-speed change mechanism of power-transmission devices |
US2399314A (en) * | 1942-12-03 | 1946-04-30 | Westinghouse Electric Corp | Semiconducting composition and tape produced therefrom |
US2495685A (en) * | 1945-06-08 | 1950-01-31 | Beaman Bernard | Two-stage hydraulic pressure pump |
US2649741A (en) * | 1948-11-26 | 1953-08-25 | North American Aviation Inc | Pump |
FR1233394A (en) * | 1959-08-24 | 1960-10-12 | Austin Motor Co Ltd | Axial piston type rotary pump or motor |
-
1964
- 1964-11-16 DE DEM63133A patent/DE1297990B/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1407047A (en) * | 1919-01-27 | 1922-02-21 | Kenneth M Trowbridge | Variable-speed change mechanism of power-transmission devices |
US2399314A (en) * | 1942-12-03 | 1946-04-30 | Westinghouse Electric Corp | Semiconducting composition and tape produced therefrom |
US2495685A (en) * | 1945-06-08 | 1950-01-31 | Beaman Bernard | Two-stage hydraulic pressure pump |
US2649741A (en) * | 1948-11-26 | 1953-08-25 | North American Aviation Inc | Pump |
FR1233394A (en) * | 1959-08-24 | 1960-10-12 | Austin Motor Co Ltd | Axial piston type rotary pump or motor |
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