DE1284305B - Piston rod bearing in the housing of a swash plate axial piston machine that can be used as a pump or motor - Google Patents
Piston rod bearing in the housing of a swash plate axial piston machine that can be used as a pump or motorInfo
- Publication number
- DE1284305B DE1284305B DE1962S0079756 DES0079756A DE1284305B DE 1284305 B DE1284305 B DE 1284305B DE 1962S0079756 DE1962S0079756 DE 1962S0079756 DE S0079756 A DES0079756 A DE S0079756A DE 1284305 B DE1284305 B DE 1284305B
- Authority
- DE
- Germany
- Prior art keywords
- piston
- piston rod
- rod bearing
- swash plate
- bearing
- 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
- F01B3/10—Control of working-fluid admission or discharge peculiar thereto
- F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
- F01B3/106—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate
-
- 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
-
- 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
- F01B3/0082—Details
- F01B3/0085—Pistons
Description
Die Erfindung betrifft eine Kolbenstangenlagerung im Gehäuse einer als Pumpe oder als Motor verwendbaren Schiefscheiben-Axialkolbenmaschine, die eine Reihe ringförmig um die Achse des Lagers angeordnete Bohrungen und darin hin- und hergehende und den Kolben zugeordnete Gleitschuhe aufweist.The invention relates to a piston rod mounting in the housing of a As a pump or as a motor usable swash plate axial piston machine, which one Series of bores arranged in a ring around the axis of the bearing and back and forth therein Has forward and the piston assigned sliding shoes.
Bei den bekannten Schiefscheiben-Axialkolbenmaschinen ist die Schiefscheibe zur Achse der Zylindertrommel geneigt. Wenn die Kolben über Kolbenstangen gegen die geneigte Fläche drücken, werden beträchtliche Querkräfte erzeugt, die auf die Kolben und die Zylindertrommel wirken. Dies ergibt einen übermäßigen Verschleiß infolge erhöhter Reibung, was die Lebensdauer und den Wirkungsgrad der Maschine verringert.In the known swash plate axial piston machines, the swash plate is inclined to the axis of the cylinder drum. When the pistons over piston rods against press the inclined surface, considerable lateral forces are generated which act on the The piston and the cylinder drum work. This results in excessive wear as a result of increased friction, which increases the service life and efficiency of the machine decreased.
Es ist Aufgabe der Erfindung, die Querkräfte auszuschalten und dadurch einen besseren Wirkungsgrad und dadurch eine höhere Lebensdauer der Maschine zu erzielen.It is the object of the invention to eliminate the transverse forces and thereby a better efficiency and thus a longer service life of the machine achieve.
Nach der Erfindung wird dies durch Kolbenstangen erreicht, deren eines Ende gelenkig mit den Kolben und deren anderes Ende gelenkig mit den Gleitschuhen in dem Kolbenstangenlager verbunden sind und im wesentlichen koaxial mit den Kolben verlaufen, und durch Gleitschuhstangen, welche die Gleitschuhe und den Lagerring der Schiefscheibe gelenkig miteinander verbinden.According to the invention this is achieved by piston rods, one of which End articulated with the piston and the other end articulated with the sliding blocks are connected in the piston rod bearing and are substantially coaxial with the pistons run, and by sliding shoe rods, which the sliding shoes and the bearing ring the swashplate articulated together.
Auftretende Querkräfte werden auf diese Weise nicht auf die Kolben und die Zylindertrommel übertragen, sondern von dem Kolbenstangenlager aufgenommen. Dadurch werden ein übermäßiger Verschleiß vermieden sowie die Lagerbelastungen herabgesetzt, was dazu beiträgt, den Wirkungsgrad der Maschine zu verbessern.Occurring transverse forces are not in this way on the piston and transferred to the cylinder drum, but received by the piston rod bearing. This avoids excessive wear and reduces bearing loads. which helps to improve the efficiency of the machine.
Ein zweiter Vorteil ist, daß der Winkel zwischen der Längsachse der Gleitschuhe und den Kolbenstangen halb so groß ist wie der Winkel bei einer herkömmlichen Axialkolbenmaschine.A second advantage is that the angle between the longitudinal axis of the Slide shoes and the piston rods is half as large as the angle in a conventional one Axial piston machine.
Außerdem kann der Hub für einen gegebenen maximal zulässigen Neigungswinkel der Schiefscheibe verdoppelt werden. Da die Gleitschuhe kein enges Spiel zu haben brauchen, ist der Verschleiß an den Gleitschuhen und an den Bohrungen im Kolbenstangenlager 14 von geringerer Bedeutung.In addition, the stroke can be doubled for a given maximum permissible angle of inclination of the swash plate. Since the sliding shoes do not need to have a tight play, the wear on the sliding shoes and on the bores in the piston rod bearing 14 is of less importance.
Die Gleitschuhstangen erstrecken sich im wesentlichen senkrecht zu der Schiefscheibe. Die Achse des Kolbenstangenlagers ist gegenüber den Achsen der Zylindertrommel und der Schiefscheibe geneigt.The slide shoe rods extend substantially perpendicular to the swash plate. The axis of the piston rod bearing is opposite the axes of the Cylinder drum and the swash plate inclined.
Die Erfindung wird im folgenden im Zusammenhang mit der Zeichnung, die einen Längsschnitt durch eine Schiefscheiben-Axialkolbenmaschine zeigt, näher erläutert.The invention is described below in connection with the drawing, which shows a longitudinal section through a swash plate axial piston machine, in more detail explained.
In dem Gehäuse 10 ist eine Treibwelle 13, deren eines Ende in einem Kolbenstangenlager 14 befestigt ist, mit einem Lager 15 gelagert. Das Kolbenstangenlager 14 ist in einem Lager 16 des Gehäuses drehbar gelagert. Die Zylindertrommel 17 ist in einem Lager 18 drehbar. Arbeitskolben 20 sind in Zylinderbohrungen21 derZylindertromme1171ängsverschiebbar. Ein Kolben 24 in einer Mittelbohrung 25 in derZylindertrommel 17 ist mit seinem Kugelkopf 26 schwenkbar in einer Kugelpfanne 27 der Triebwelle 13 gelagert.A drive shaft 13, one end of which is fastened in a piston rod bearing 14 , is mounted with a bearing 15 in the housing 10. The piston rod bearing 14 is rotatably mounted in a bearing 16 of the housing. The cylinder drum 17 is rotatable in a bearing 18. Working pistons 20 are longitudinally displaceable in cylinder bores 21 of cylinder drum 1171. A piston 24 in a central bore 25 in the cylinder drum 17 is pivotably mounted with its ball head 26 in a ball socket 27 of the drive shaft 13 .
Kolbenstangen 30 sitzen mit Kugelgelenken in den Kolben 20 und in Gleitschuhen 35 des Kolbenstangenlagers 14. Gleitschuhstangen 37 sitzen ebenfalls mit Kugelgelenken in den Gleitschuhen 35 und einem Lagerring 42 der Schiefscheibe 60. Ein Kugellager 55 ermöglicht eine freie Drehung des Lagerringes 42 auf der Schiefscheibe 60.Piston rods 30 sit with ball joints in the piston 20 and sliding shoes 35 of the piston rod bearing 14 Gleitschuhstangen 37 also sit with ball joints in the sliding shoes 35 and a bearing ring 42 of the swash plate 60. A spherical bearing 55 allows free rotation of the bearing ring 42 on the swash plate 60th
Um die Drehmomentübertragung zu ermöglichen, ist ein U-förmiger Widerlagerabschnitt 90 an jedem Kolben 20 vorgesehen. Die Widerlagerabschnitte liegen gegen Abschnitte 92 der Kolbenstangen 30 an.To enable torque transmission, a U-shaped abutment section 90 is provided on each piston 20 . The abutment sections bear against sections 92 of the piston rods 30 .
Für die Drehmomentübertragung sind Flanschteile 94 am Lagerring 42 vorgesehen, die die Gleitschuhstangen 37 führen.For the torque transmission, flange parts 94 are provided on the bearing ring 42 , which guide the slide shoe rods 37.
Wenn auf den Kolben 20 eine Längskraft wirkt, wirkt ihr die Kraft längs der Achse des Gleitschuhes 35 und die Querkraft in der Bohrung 36 entgegen. Die längs der Achse des Gleitschuhes 35 ausgeübte Kraft erfährt eine Gegenwirkung durch eine Kraft, welche durch den Lagerring 42 über die Gleitschuhstange 37 ausgeübt wird. Wenn sich der Lagerring 42 in der gezeigten Stellung befindet, übt er ebenfalls eine Querkraft auf die Bohrung 36 des Kolbenstangenlagers 14 aus.When a longitudinal force acts on the piston 20, it is counteracted by the force along the axis of the sliding shoe 35 and the transverse force in the bore 36. The force exerted along the axis of the slide shoe 35 is counteracted by a force which is exerted by the bearing ring 42 via the slide shoe rod 37. When the bearing ring 42 is in the position shown, it also exerts a transverse force on the bore 36 of the piston rod bearing 14 .
Der Lagerring 42 wird in Auflage auf den Lagerkugeln 55 der Schiefscheibe 60 durch die Kraft gehalten, die durch das Strömungsmittel auf der Hochdruckseite erzeugt wird.The bearing ring 42 is held in contact with the bearing balls 55 of the swash plate 60 by the force generated by the fluid on the high pressure side.
Wenn die Achse des Lagerringes 42 zur Achse der Zylindertrommel 17 parallel ist, ist der Kolbenhub gleich Null.When the axis of the bearing ring 42 is parallel to the axis of the cylinder drum 17 , the piston stroke is zero.
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11436661A | 1961-06-02 | 1961-06-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1284305B true DE1284305B (en) | 1968-11-28 |
Family
ID=22354793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1962S0079756 Pending DE1284305B (en) | 1961-06-02 | 1962-06-02 | Piston rod bearing in the housing of a swash plate axial piston machine that can be used as a pump or motor |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH385023A (en) |
DE (1) | DE1284305B (en) |
GB (1) | GB1002912A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012016060A1 (en) * | 2012-08-14 | 2014-02-20 | Robert Bosch Gmbh | Housing part for axial piston machine, has openings arranged such that connecting force is equal to thrust force, where connecting force acts off-center with regard to housing part during operation of hydrostatic machine |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE362698C (en) * | 1921-03-06 | 1922-10-31 | Vis Ges Fuer Kleinfahrzeuge M | Seat attachment for bicycles, especially motorized bicycles |
DE365172C (en) * | 1917-05-11 | 1922-12-09 | Fritz Egersdoerfer | Rotary machine according to patent 362694 with more than two working pistons |
DE377331C (en) * | 1919-10-04 | 1923-06-16 | Fritz Egersdoerfer | Rotary pump |
US2649741A (en) * | 1948-11-26 | 1953-08-25 | North American Aviation Inc | Pump |
US2780170A (en) * | 1953-11-17 | 1957-02-05 | Sundstrand Machine Tool Co | Supercharging system for fluid pumps |
US2939398A (en) * | 1954-12-02 | 1960-06-07 | Thompson Ramo Wooldridge Inc | Pump |
-
1962
- 1962-05-30 GB GB2079562A patent/GB1002912A/en not_active Expired
- 1962-06-01 CH CH666462A patent/CH385023A/en unknown
- 1962-06-02 DE DE1962S0079756 patent/DE1284305B/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE365172C (en) * | 1917-05-11 | 1922-12-09 | Fritz Egersdoerfer | Rotary machine according to patent 362694 with more than two working pistons |
DE377331C (en) * | 1919-10-04 | 1923-06-16 | Fritz Egersdoerfer | Rotary pump |
DE362698C (en) * | 1921-03-06 | 1922-10-31 | Vis Ges Fuer Kleinfahrzeuge M | Seat attachment for bicycles, especially motorized bicycles |
US2649741A (en) * | 1948-11-26 | 1953-08-25 | North American Aviation Inc | Pump |
US2780170A (en) * | 1953-11-17 | 1957-02-05 | Sundstrand Machine Tool Co | Supercharging system for fluid pumps |
US2939398A (en) * | 1954-12-02 | 1960-06-07 | Thompson Ramo Wooldridge Inc | Pump |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012016060A1 (en) * | 2012-08-14 | 2014-02-20 | Robert Bosch Gmbh | Housing part for axial piston machine, has openings arranged such that connecting force is equal to thrust force, where connecting force acts off-center with regard to housing part during operation of hydrostatic machine |
DE102012016060B4 (en) | 2012-08-14 | 2023-07-20 | Robert Bosch Gmbh | Housing part, hydrostatic machine and method of assembling the hydrostatic machine |
Also Published As
Publication number | Publication date |
---|---|
GB1002912A (en) | 1965-09-02 |
CH385023A (en) | 1965-02-26 |
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