EP1251271B1 - Variable capacity axial piston machine with inclination angle sensor - Google Patents

Variable capacity axial piston machine with inclination angle sensor Download PDF

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Publication number
EP1251271B1
EP1251271B1 EP02006177A EP02006177A EP1251271B1 EP 1251271 B1 EP1251271 B1 EP 1251271B1 EP 02006177 A EP02006177 A EP 02006177A EP 02006177 A EP02006177 A EP 02006177A EP 1251271 B1 EP1251271 B1 EP 1251271B1
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EP
European Patent Office
Prior art keywords
sensor
adjusting
axial piston
piston machine
control part
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
Application number
EP02006177A
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German (de)
French (fr)
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EP1251271A2 (en
EP1251271A3 (en
Inventor
Bernd Emrich
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.)
Brueninghaus Hydromatik GmbH
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Brueninghaus Hydromatik GmbH
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Publication of EP1251271A2 publication Critical patent/EP1251271A2/en
Publication of EP1251271A3 publication Critical patent/EP1251271A3/en
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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
    • F04B1/20—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
    • 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

Definitions

  • the invention relates to an axial piston machine the preamble of claim 1.
  • An axial piston machine of this type is described in DE 40 22 301 C1 described.
  • this known axial piston machine are a plurality of pistons in a cylinder drum and back slidably mounted, which is a transversely to her Swivel axis extending pivot axis pivotally in the housing
  • Axial piston machine is mounted, wherein the pistons at a rotatably mounted drive disk are supported.
  • One Swivel angle sensor is with respect to the pivot plane of the Cylinder drum arranged laterally on the housing, wherein a extending at right angles to the pivot plane and in slidably mounted in its longitudinal direction Stylus penetrates the housing in a feedthrough hole and with a lateral inclined surface of a control part interacts.
  • the invention is based on the object Axial piston machine of the type described above so to design that a construction is achieved, the especially favorable for reasons of manufacture and assembly is. According to another aspect is intended for a swivel angle determination the pivoting movement of the cylinder drum without Motion transformation can be exploited.
  • the senor acts directly or indirectly with the sensor Adjusting slide of the adjusting device together.
  • These Design is characterized by a particularly simple Construction, because the sensor with a component interacts, the cylinder drum indirectly or swung directly and thus for the adjustment is the cause.
  • Another advantage of this embodiment is that the measuring device or the sensor in Area of the adjusting slide is arranged in the the sensor can be integrated advantageous.
  • the adjusting slide in the cover part arranged a cup-shaped housing, which also excellent to accommodate the sensor.
  • a advantageous arrangement point for the sensor is the Cylinder drum side facing away from the lid part of the the sensor can protrude without disturbing or significantly To impair installation space.
  • This cover part requires a processing in which the design features of the Measuring device rationally designed or prefabricated can be.
  • the sensor or the pivoting part can be compared with respect to their Be pivot axis symmetrical parts formed. hereby Not only a simple design is achieved, but it can also be round or annular components for the Derivation of the respective swivel angle representative signal used by the pivoting movement be, for. B. electric coils.
  • the senor the cylinder drum opposite on one of the two Arranged sides that are arranged transversely to the pivoting plane are, with the sensor through one with the cylinder drum co-acting distance sensor is formed. hereby the swinging motion can be used directly.
  • the inventive design is also characterized by a simple and inexpensive to produce construction. A mechanical connection between the sensor and the Cylinder drum is not required because the sensor Distance between him and the cylinder drum determined.
  • the senor on the outside or outside of the housing to arrange accessible.
  • a hole in the wall of the housing provide, through which the sensor is effective.
  • the Sealing of the hole can be through the body of the sensor or take him a housing itself, the Hole edge covered from the outside.
  • the wall of the housing is a screw connection excellent, z. B. a hole-forming threaded hole.
  • a sensor that on the circumference of the cylinder drum arranged markings reacts to the delivery of signals.
  • the markers can z. B. be formed by notches or teeth.
  • Such a sensor is also suitable for determining the circumference or Speed detection.
  • the signals of the sensor become one of the Axial piston machine associated electrical Control device transmitted and from this as the actual value of each pivot angle position for controlling the flow rate, performance or working pressure with one Flow regulator, a power regulator or a Pressure regulator used.
  • Axial piston machine has a two-part housing 2, of which a housing part 2a is cup-shaped and the other housing part 2b a cover for the Housing part 2a forms.
  • a drive shaft 3 in rotatably mounted at least one pivot bearing, which is the End wall 2c in a through hole 4 to the outside interspersed and through a through hole 4 arranged sealing ring 5 is sealed.
  • the Embodiment are for the purpose of stabilizing the Drehlagerung two rotary bearing 6 axially next to each other arranged, of which the axially outer pivot bearing 6 in Area of the outside z.
  • conically tapered end wall 2c is arranged and formed with a bearing bore 6a and the second pivot bearing 6 in the region of the front side End portion of the peripheral wall 2d with a at this formed bearing bore 6b is formed.
  • the pivot bearing 6 preferably rolling bearings, in particular tapered roller bearings arranged opposite one another, which sit on cylindrical shaft sections whose Diameter increases axially inwardly stepped.
  • a cylinder drum 8 In the cavity 7 of the housing 2 of the drive shaft 3 is axial opposite a cylinder drum 8 about its drum axis 8a rotatably mounted and pivotable about a transverse axis 9, the a plurality arranged distributed on a pitch circle Cylinder bores 11 which are the drive shaft 3 out are open, and in which piston 12 axially displaceable are stored, the axially on the drive shaft 3, here at a Triebwellenflansch 3a, are supported.
  • the z. B. is formed by a bolted hole plate, the piston heads 14 are held axially in the calotte 15.
  • the cylinder drum 8 is coaxial with it trained bearing pin 17 is mounted, which - like the piston 12 - with a spherical bolt head 18 in one coaxial calotte 19 is held positively.
  • a Compression spring 24 is arranged and effective, the Cylinder drum 8 along its central axis 8a to the Drive shaft 3 opposite axial side against a control part 25th acted upon by an adjusting 26 in the Swivel plane is pivotally mounted about the pivot axis 9, here in a in the pivoting plane in the housing part 2b extending guide groove 27, the base 27a a concave cylinder section surface is where the control part 25 with a correspondingly convex bearing sliding surface 25a is applied.
  • the mutually facing end faces of the Cylinder drum 8 and the control part 25 are with Guide surfaces 28 a, 28 b to each other, whose forms of a radial plane of the longitudinal central axis 8a and deviate during Embodiment formed by spherical section surfaces are.
  • the guide surface 28a of the cylinder drum 8 can be concave and the guide surface 28b of the Control parts 25 may be convex.
  • the Piston holes 11 are through the cylinder drum 8 and the Control part 25 passing through channel sections with a Supply line or a discharge line connected, which in the embodiment in the housing part 2b extend. The formation of the channel sections is in itself known and therefore need not be described in detail become.
  • the adjusting device 26 is in the embodiment by an adjusting slide 34 and one of them transversely protruding and in a recess 35 in the control part 25 with Movement encompassing driving pin 36 is formed, the preferably with a spherical bolt head 37 in the z. B. cylindrical recess 35 engages and thus in respect of the control part 25 different tilt positions with the Control part 25 may be effective.
  • the adjusting slide 34 is by a drive in its longitudinal direction back and forth displaceable. This may be z. B. one hydraulic drive with a hydraulic Verstellzylinder act, which is for reasons of simplification not further described.
  • the driving pin 36 surrounds the material region of the housing part 2b between a guide channel 38 for the adjusting slide 34 and the Cylinder-shaped base 27a for the control part 25 in a slot extending in the pivoting plane 41st
  • the housing 2 the Control part 25 opposite to the housing sides, the Arranged transversely to the pivot plane are two stops 42a, 42 b provided, against which the control part 25 with his Peripheral surface abuts.
  • the stops 42a, 42b are adjustable and preferably formed by setscrews of outside in corresponding obliquely arranged threaded holes screwed in and each one by one on the outside of the Wall of the housing 2 adjacent mother are verkontert.
  • the axial piston machine 1 has a measuring device 43 with a swivel angle sensor 44 for determining the Swivel angle on the cylinder drum 8 and the Control part 25, which in functional operation a swivel unit form, take.
  • the swing angle is thus between the Longitudinal axis 8a and the axis of rotation 3b included.
  • the measuring device 43 and the sensor 44 in the region of the control part 25th adjacent housing wall, here the lid-shaped Housing part 2b, arranged, wherein the sensor 44 with the Adjusting slide 34 cooperates.
  • a lever arm 46 may be provided, whose free end by a transverse to the adjusting slide 34th directed slide guide 47 with the adjusting slide 34th connected is.
  • the sensor 44 is on the Control part 25 opposite side of the adjusting slide 34th containing housing part 2b arranged.
  • the lever arm 46 can be rigid with the sensor 44 or an adjustment or Pivoting part 48 to be connected to the sensor 44th interacts.
  • the sensor 44 or the pivoting part 48 can be stored or arranged in an attachment 49, the at the housing part 2b fastened, z. B. screwed, is and a feedthrough slot 51 for the lever arm 46 in FIG Housing part 2b covered and sealed.
  • the feedthrough slot 51 is in the attachment 49 a Cavity 51 a present in which the lever arm 46 of follow longitudinal movement of the adjusting slide 34 and back and can swing her.
  • Lever arm 46 rotatably connected to a shaft 52 which in Active connection with the sensor 44 is in the attachment 49th may be arranged or attached to the attachment 49, z. B. screwed, can be, as shown in FIG. 2 shows.
  • the shaft 52 can be arranged only in one half of the attachment 49. In the other half of the attachment 49 may be approximately coaxial a closable opening, z. B. a threaded hole, be provided by a screw plug 54 is closed.
  • the slide guide 47 is between the lever arm 46 and the driving pin 36 is formed.
  • the adjusting slide 34 of an additional Training for the active compound released and the relevant design features are on the bolt head 37th remote end of the driving pin 36 formed at on the one hand, a small one on the other one Component in which the concerned Design features made simple and inexpensive can be.
  • the Mitauerbolzen 36 a Kulissenaus supraung 55, in the with little play on a free end of the lever arm 46 arranged accordingly rounded driving head 46a so bordered that during a longitudinal movement of the adjusting slide 34, the lever arm 46 and the pivot member 48 and the sensor 44th a pivoting movement about the pivot axis 52a of the shaft 52nd To run.
  • the sensor 44 on the peripheral wall of the Housing 2 fixed, in one of the cylinder drum 8 laterally opposite position to one of the two housing sides, which are arranged transversely to the pivoting plane are.
  • the sensor 44 is located on the side of the housing 2, on which the Cylinder drum 8 in the zero position or in the position lowest flow rate closest to the sensor 44 located.
  • the sensor 44 is adjacent to the stop 42a arranged and cooperates with the circumference of the cylinder drum 8, here with the control part 25 facing away from neurosciencesrandbreich the cylinder drum 8, together.
  • the sensor 44 is detachable attached and preferably externally mountable and detachably attached to the housing 2, preferably by a Screw connection.
  • the sensor 44 a threaded bolt 44 a, with which he from the outside into a Thread hole in the peripheral wall 2 d of the housing second screwed in and through one on the threaded bolt 44a screwed nut 44b verkontert is verkontert.
  • the sensor 44 is a distance sensor, the distance in the longitudinal direction of the Circumference of the cylinder drum 8 measures.
  • the measurement result is an existing electrical control device for controlling the adjusting device 26 is transmitted as a signal, as Actual value for controlling an existing control device is used, for. B. in a power controller, a Throughput volume controller or a pressure regulator.
  • the sensor 44 may be such Be sensor that only or optionally in addition to its distance measurement on marks 45 at the Cylinder drum 8 reacts and thus circumferential distances of the Cylinder drum 8 can determine and as a speed sensor can work.
  • this embodiment generates the sensor 44 in the rotational operation of Axial piston machine 1 due to the past him, differences caused by the marks 45, that of the electrical control device for Speed measurement can be used.
  • the sensor 44 at the same time also a distance sensor, both can Signals detected simultaneously and the controller be transmitted.
  • a distance sensor and / or the Differences in the rotation of the cylinder drum 8 detecting sensor 44 is known per se and does not need to be further described.
  • the signals can z. B.
  • the markers 45 may, for. B. by a or several surveys following each other in the circumferential direction and depressions z. B. be formed in the form of notches, the preferably in the longitudinal direction of the cylinder drum 8 are elongated, so when panning the Cylinder drum 8 resulting longitudinal movements of the Measuring points are harmless.

Description

Die Erfindung bezieht sich auf eine Axialkolbenmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to an axial piston machine the preamble of claim 1.

Eine Axialkolbenmaschine dieser Art ist in der DE 40 22 301 C1 beschrieben. Bei dieser vorbekannten Axialkolbenmaschine sind eine Mehrzahl Kolben in einer Zylindertrommel hin und her verschiebbar gelagert, die um eine quer zu ihrer Drehachse verlaufende Schwenkachse schwenkbar im Gehäuse der Axialkolbenmaschine gelagert ist, wobei die Kolben an einer drehbar gelagerten Triebscheibe abgestützt sind. Ein Schwenkwinkel-Sensor ist bezüglich der Schwenkebene der Zylindertrommel seitlich am Gehäuse angeordnet, wobei ein sich rechtwinklig zur Schwenkebene erstreckender und in seiner Längsrichtung hin und her verschiebbar gelagerter Taststift das Gehäuse in einem Durchführungsloch durchsetzt und mit einer seitlichen Schrägfläche eines Steuerteils zusammenwirkt. Bei dieser vorbekannten Axialkolbenmaschine wird bei der Schwenkwinkelermittlung nicht direkt die Schwenkbewegung ermittelt, sondern es wird zunächst die Schwenkbewegung in eine Axialbewegung des Taststiftes umgewandelt und die Axialbewegung des Taststiftes ermittelt. Dies führt nicht nur zu einem großen Bauaufwand, sondern es erfolgt auch eine Untersetzung der Bewegung, so daß die Ableitung eines Signals aus dieser Bewegung erschwert ist.An axial piston machine of this type is described in DE 40 22 301 C1 described. In this known axial piston machine are a plurality of pistons in a cylinder drum and back slidably mounted, which is a transversely to her Swivel axis extending pivot axis pivotally in the housing Axial piston machine is mounted, wherein the pistons at a rotatably mounted drive disk are supported. One Swivel angle sensor is with respect to the pivot plane of the Cylinder drum arranged laterally on the housing, wherein a extending at right angles to the pivot plane and in slidably mounted in its longitudinal direction Stylus penetrates the housing in a feedthrough hole and with a lateral inclined surface of a control part interacts. In this known axial piston machine is not directly at the Schwenkwinkelermittlung the Pivoting movement determined, but it is first the Pivoting movement in an axial movement of the stylus converted and determined the axial movement of the stylus. This not only leads to a large construction effort, but it There is also a reduction of the movement, so that the Derivation of a signal from this movement is difficult.

Der Erfindung liegt die Aufgabe zugrunde, eine Axialkolbenmaschine der eingangs angegebenen Art so auszugestalten, daß eine Bauweise erreicht wird, die insbesondere aus Gründen der Herstellung und Montage günstig ist. Gemäß einem anderen Aspekt soll für eine Schwenkwinkel-Ermittlung die Schwenkbewegung der Zylindertrommel ohne Bewegungsumwandlung ausgenutzt werden können. The invention is based on the object Axial piston machine of the type described above so to design that a construction is achieved, the especially favorable for reasons of manufacture and assembly is. According to another aspect is intended for a swivel angle determination the pivoting movement of the cylinder drum without Motion transformation can be exploited.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved by the features of claim 1 solved. Advantageous developments of Invention are described in the subclaims.

Bei der erfindungsgemäßen Axialkolbenmaschine nach Anspruch 1 wirkt der Sensor mittelbar oder unmittelbar mit dem Verstellschieber der Verstellvorrichtung zusammen. Diese Ausgestaltung zeichnet sich durch eine besonders einfache Bauweise aus, weil der Sensor mit einem Bauteil zusammenwirkt, das die Zylindertrommel mittelbar oder unmittelbar verschwenkt und somit für die Verstellbewegung ursächlich ist. Ein weiterer Vorteil dieser Ausgestaltung besteht darin, daß die Meßvorrichtung bzw. der Sensor im Bereich des Verstellschiebers angeordnet ist, in den sich der Sensor vorteilhaft integrieren läßt. Bei üblichen Axialkolbenmaschinen ist der Verstellschieber im Deckelteil eines topfförmigen Gehäuses angeordnet, das sich auch vorzüglich dazu eignet, den Sensor aufzunehmen. Eine vorteilhafte Anordnungsstelle für den Sensor ist die der Zylindertrommel abgewandte Seite des Deckelteils, von der der Sensor abstehen kann, ohne wesentlich zu stören oder den Einbauraum zu beeinträchtigen. Dieser Deckelteil bedarf einer Bearbeitung, bei der die Ausgestaltungsmerkmale der Meßvorrichtung rationell ausgebildet oder vorgefertigt werden können.In the axial piston machine according to the invention according to claim 1, the sensor acts directly or indirectly with the sensor Adjusting slide of the adjusting device together. These Design is characterized by a particularly simple Construction, because the sensor with a component interacts, the cylinder drum indirectly or swung directly and thus for the adjustment is the cause. Another advantage of this embodiment is that the measuring device or the sensor in Area of the adjusting slide is arranged in the the sensor can be integrated advantageous. At usual Axial piston machines is the adjusting slide in the cover part arranged a cup-shaped housing, which also excellent to accommodate the sensor. A advantageous arrangement point for the sensor is the Cylinder drum side facing away from the lid part of the the sensor can protrude without disturbing or significantly To impair installation space. This cover part requires a processing in which the design features of the Measuring device rationally designed or prefabricated can be.

Der Sensor oder das Schwenkteil können als bezüglich ihrer Schwenkachse symmetrische Teile ausgebildet sein. Hierdurch wird nicht nur eine einfache Bauweise erreicht, sondern es können auch runde bzw. ringförmige Bauelemente für die Ableitung eines den jeweiligen Schwenkwinkel repräsentierenden Signals von der Schwenkbewegung benutzt werden, z. B. elektrischen Spulen. The sensor or the pivoting part can be compared with respect to their Be pivot axis symmetrical parts formed. hereby Not only a simple design is achieved, but it can also be round or annular components for the Derivation of the respective swivel angle representative signal used by the pivoting movement be, for. B. electric coils.

Bei der erfindungsgemäßen Axialkolbenmaschine ist der Sensor der Zylindertrommel gegenüberliegend auf einer der beiden Seiten angeordnet, die quer zur Schwenkebene angeordnet sind, wobei der Sensor durch einen mit der Zylindertrommel zusammenwirkenen Abstands-Sensor gebildet ist. Hierdurch läßt sich die Schwenkbewegung direkt ausnutzen. Die erfindungsgemäße Ausgestaltung zeichnet sich auch durch eine einfache und kostengünstig herstellbare Bauweise aus. Eine mechanische Verbindung zwischen dem Sensor und der Zylindertrommel ist nicht erforderlich, da der Sensor den Abstand zwischen ihm und der Zylindertrommel ermittelt.In the axial piston machine according to the invention, the sensor the cylinder drum opposite on one of the two Arranged sides that are arranged transversely to the pivoting plane are, with the sensor through one with the cylinder drum co-acting distance sensor is formed. hereby the swinging motion can be used directly. The inventive design is also characterized by a simple and inexpensive to produce construction. A mechanical connection between the sensor and the Cylinder drum is not required because the sensor Distance between him and the cylinder drum determined.

Es ist aus Gründen einer einfachen Montage bzw. Demontage vorteilhaft, den Sensor am Gehäuse außen oder von außen zugänglich anzuordnen. Hierbei ist es zwecks Steigerung der Empfindlichkeit bzw. Leistungsfähigkeit vorteilhaft, im Bereich des Sensors ein Loch in der Wand des Gehäuses vorzusehen, durch das hindurch der Sensor wirksam ist. Die Abdichtung des Loches kann durch den Körper des Sensor oder eines ihn aufnehmenden Gehäuses selbst erfolgen, das den Lochrand von außen überdeckt. Zur Befestigung des Sensors an der Wand des Gehäuses eignet sich eine Schraubverbindung vorzüglich, z. B. ein das lochbildendes Gewindeloch.It is for the sake of easy assembly and disassembly advantageous, the sensor on the outside or outside of the housing to arrange accessible. Here it is for the purpose of increasing the Sensitivity or performance advantageous in Area of the sensor a hole in the wall of the housing provide, through which the sensor is effective. The Sealing of the hole can be through the body of the sensor or take him a housing itself, the Hole edge covered from the outside. To attach the sensor the wall of the housing is a screw connection excellent, z. B. a hole-forming threaded hole.

Es ist außerdem vorteilhaft, einen Sensor zu verwenden, der auf am Umfang der Zylindertrommel angeordnete Markierungen zur Abgabe von Signalen reagiert. Die Markierungen können z. B. durch Kerben oder Zähne gebildet sein. Ein solcher Sensor eignet sich gleichzeitig zur Umfangswegermittlung bzw. Drehzahlermittlung. Die Signale des Sensors werden einer der Axialkolbenmaschine zugeordneten elektrischen Steuereinrichtung übermittelt und von dieser als Istwert der jeweils Schwenkwinkelposition zum Regeln der Durchsatzmenge, der Leistung oder des Arbeitsdrucks mit einem Fördermengenregler, einem Leistungsregler oder einem Druckregler benutzt. It is also advantageous to use a sensor that on the circumference of the cylinder drum arranged markings reacts to the delivery of signals. The markers can z. B. be formed by notches or teeth. Such a sensor is also suitable for determining the circumference or Speed detection. The signals of the sensor become one of the Axial piston machine associated electrical Control device transmitted and from this as the actual value of each pivot angle position for controlling the flow rate, performance or working pressure with one Flow regulator, a power regulator or a Pressure regulator used.

Nachfolgend werden vorteilhafte Ausgestaltungen der Erfindung anhand von bevorzugten Ausführungsbeispielen und Zeichnungen näher erläutert. Es zeigen

Fig. 1
eine erfindungsgemäße Axialkolbenmaschine im axialen Schnitt;
Fig. 2
den Teilschnitt II - II in Fig. 1;
Fig. 3
eine erfindungsgemäße Axialkolbenmaschine im axialen Schnitt in abgewandelter Ausgestaltung;
Fig. 4
die in Fig. mit IV gekennzeichnete Einzelheit in vergrößerter Darstellung;
Below, advantageous embodiments of the invention will be explained in more detail with reference to preferred embodiments and drawings. Show it
Fig. 1
an axial piston according to the invention in axial section;
Fig. 2
the partial section II - II in Fig. 1;
Fig. 3
an axial piston according to the invention in axial section in a modified embodiment;
Fig. 4
the detail in Fig. marked with IV detail in an enlarged view;

Die in ihrer Gesamtheit mit 1 bezeichnete Axialkolbenmaschine weist ein zweiteiliges Gehäuse 2 auf, von denen das eine Gehäuseteil 2a topfförmig ausgebildet ist und das andere Gehäuseteil 2b einen Deckel für das Gehäuseteil 2a bildet. Im Bereich der Stirnwand 2c des topfförmigen Gehäuseteils 2a ist eine Triebwelle 3 in wenigstens einem Drehlager drehbar gelagert, die die Stirnwand 2c in einem Durchführungsloch 4 nach außen durchsetzt und durch einen im Durchführungsloch 4 angeordneten Dichtring 5 abgedichtet ist. Beim Ausführungsbeispiel sind zwecks Stabilisierung der Drehlagerung zwei Drehlager 6 axial nebeneinander angeordnet, von denen das axial äußere Drehlager 6 im Bereich der außen z. B. konisch verjüngten Stirnwand 2c angeordnet ist und mit einer Lagerbohrung 6a ausgebildet ist und das zweite Drehlager 6 im Bereich des stirnseitigen Endbereichs der Umfangswand 2d mit einer an dieser ausgebildeten Lagerbohrung 6b ausgebildet ist. Im Übrigen weisen die Drehlager 6 vorzugsweise Wälzlager, insbesondere einander entgegengesetzt angeordnete Kegelrollenlager, auf, die auf zylindrischen Wellenabschnitten sitzen, deren Durchmesser sich axial nach innen stufenförmig vergrößert. The denoted in its entirety by 1 Axial piston machine has a two-part housing 2, of which a housing part 2a is cup-shaped and the other housing part 2b a cover for the Housing part 2a forms. In the area of the end wall 2c of the pot-shaped housing part 2a is a drive shaft 3 in rotatably mounted at least one pivot bearing, which is the End wall 2c in a through hole 4 to the outside interspersed and through a through hole 4 arranged sealing ring 5 is sealed. At the Embodiment are for the purpose of stabilizing the Drehlagerung two rotary bearing 6 axially next to each other arranged, of which the axially outer pivot bearing 6 in Area of the outside z. B. conically tapered end wall 2c is arranged and formed with a bearing bore 6a and the second pivot bearing 6 in the region of the front side End portion of the peripheral wall 2d with a at this formed bearing bore 6b is formed. Furthermore the pivot bearing 6 preferably rolling bearings, in particular tapered roller bearings arranged opposite one another, which sit on cylindrical shaft sections whose Diameter increases axially inwardly stepped.

Im Hohlraum 7 des Gehäuses 2 ist der Triebwelle 3 axial gegenüberliegend eine Zylindertrommel 8 um ihre Trommelachse 8a drehbar und um eine Querachse 9 schwenkbar gelagert, die eine Mehrzahl auf einem Teilkreis verteilt angeordnete Zylinderbohrungen 11 aufweist, die zur Triebwelle 3 hin offen sind, und in denen Kolben 12 axial verschiebbar gelagert sind, die axial an der Triebwelle 3, hier an einem Triebwellenflansch 3a, abgestützt sind. Es ist eine Drehantriebsverbindung zwischen der Triebwelle 3 und dem Zylindertrommel 8 vorhanden, die beim Ausführungsbeispiel dadurch gebildet ist, das die Kolben 12 mit ihren kugelförmigen Kolbenköpfen 14 in kugelförmigen Kalotten 15 des Triebflansches 3a schwenkbar gelagert sind. Durch eine die Kugelköpfe 14 hintergreifende Rückhaltevorrichtung 16, die z. B. durch eine angeschraubte Lochplatte gebildet ist, sind die Kolbenköpfe 14 in den Kalotten 15 axial gehalten.In the cavity 7 of the housing 2 of the drive shaft 3 is axial opposite a cylinder drum 8 about its drum axis 8a rotatably mounted and pivotable about a transverse axis 9, the a plurality arranged distributed on a pitch circle Cylinder bores 11 which are the drive shaft 3 out are open, and in which piston 12 axially displaceable are stored, the axially on the drive shaft 3, here at a Triebwellenflansch 3a, are supported. It is one Rotary drive connection between the drive shaft 3 and the Cylinder drum 8 available, which in the embodiment is formed by the piston 12 with their spherical piston heads 14 in spherical caps 15 of the drive flange 3a are pivotally mounted. By a the ball heads 14 engaging behind restraint 16, the z. B. is formed by a bolted hole plate, the piston heads 14 are held axially in the calotte 15.

Die Zylindertrommel 8 ist auf einem mit ihr koaxial ausgebildeten Lagerbolzen 17 gelagert, der - wie die Kolben 12 - mit einem kugelförmigen Bolzenkopf 18 in einer koaxialen Kalotte 19 formschlüssig gehalten ist. Der Lagerbolzen 17 sitzt in einer koaxialen Stufenbohrung 21 in der Zylindertrommel 8. Zwischen Stufenflächen 22, 23 des Lagerbolzens 17 und der Zylindertrommel 8 ist eine Druckfeder 24 angeordnet und wirksam, die die Zylindertrommel 8 längs ihrer Mittalachse 8a zu der der Triebwelle 3 abgewandten Axialseite gegen ein Steuerteil 25 beaufschlagt, das durch einen Verstellantrieb 26 in der Schwenkebene um die Schwenkachse 9 schwenkbar gelagert ist, hier in einer sich in der Schwenkebene im Gehäuseteil 2b erstreckenden Führungsnut 27, deren Grundfläche 27a eine konkave Zylinderabschnittfläche ist, an der das Steuerteil 25 mit einer entsprechend konvexen Lagergleitfläche 25a anliegt. Die einander zugewandten Stirnflächen der Zylindertrommel 8 und des Steuerteils 25 liegen mit Führungsflächen 28a, 28b aneinander an, deren Formen von einer Radialebene der Längsmittelachse 8a abweichen und beim Ausführungsbeispiel durch Kugelabschnittflächen gebildet sind. Die Führungsfläche 28a der Zylindertrommel 8 kann konkav ausgebildet sein und die Führungsfläche 28b des Steuerteils 25 kann konvex ausgebildet sein. Die Kolbenbohrungen 11 sind durch die Zylindertrommel 8 und das Steuerteil 25 durchsetzende Kanalabschnitte mit einer Zuführungsleitung bzw. einer Abführungsleitung verbunden, die sich beim Ausführungsbeispiel im Gehäuseteil 2b erstrecken. Die Ausbildung der Kanalabschnitte ist an sich bekannt und braucht deshalb nicht näher beschrieben zu werden.The cylinder drum 8 is coaxial with it trained bearing pin 17 is mounted, which - like the piston 12 - with a spherical bolt head 18 in one coaxial calotte 19 is held positively. Of the Bearing pin 17 is seated in a coaxial stepped bore 21 in the cylinder drum 8 between step surfaces 22, 23 of the Bearing 17 and the cylinder drum 8 is a Compression spring 24 is arranged and effective, the Cylinder drum 8 along its central axis 8a to the Drive shaft 3 opposite axial side against a control part 25th acted upon by an adjusting 26 in the Swivel plane is pivotally mounted about the pivot axis 9, here in a in the pivoting plane in the housing part 2b extending guide groove 27, the base 27a a concave cylinder section surface is where the control part 25 with a correspondingly convex bearing sliding surface 25a is applied. The mutually facing end faces of the Cylinder drum 8 and the control part 25 are with Guide surfaces 28 a, 28 b to each other, whose forms of a radial plane of the longitudinal central axis 8a and deviate during Embodiment formed by spherical section surfaces are. The guide surface 28a of the cylinder drum 8 can be concave and the guide surface 28b of the Control parts 25 may be convex. The Piston holes 11 are through the cylinder drum 8 and the Control part 25 passing through channel sections with a Supply line or a discharge line connected, which in the embodiment in the housing part 2b extend. The formation of the channel sections is in itself known and therefore need not be described in detail become.

Die Verstellvorrichtung 26 ist beim Ausführungsbeispiel durch einen Verstellschieber 34 und einen davon quer abstehenden und in eine Ausnehmung 35 im Steuerteil 25 mit Bewegungsspiel einfassenden Mitnehmerbolzen 36 gebildet, der vorzugsweise mit einem kugelförmigen Bolzenkopf 37 in die z. B. zylindrische Ausnehmung 35 einfaßt und somit in bezüglich des Steuerteils 25 unterschiedlichen Kippstellungen mit dem Steuerteil 25 wirksam sein kann. Der Verstellschieber 34 ist durch einen Antrieb in seiner Längsrichtung hin und her verschiebbar. Hierbei kann es sich z. B. um einen hydraulischen Antrieb mit einem hydraulischen Verstellzylinder handeln, was aus Vereinfachungsgründen nicht weiter beschrieben ist. Der Mitnehmerbolzen 36 durchfaßt den Materialbereich des Gehäuseteils 2b zwischen einem Führungskanal 38 für den Verstellschieber 34 und der zylinderabschnittförmigen Grundfläche 27a für das Steuerteil 25 in einem sich in der Schwenkebene erstreckenden Schlitz 41.The adjusting device 26 is in the embodiment by an adjusting slide 34 and one of them transversely protruding and in a recess 35 in the control part 25 with Movement encompassing driving pin 36 is formed, the preferably with a spherical bolt head 37 in the z. B. cylindrical recess 35 engages and thus in respect of the control part 25 different tilt positions with the Control part 25 may be effective. The adjusting slide 34 is by a drive in its longitudinal direction back and forth displaceable. This may be z. B. one hydraulic drive with a hydraulic Verstellzylinder act, which is for reasons of simplification not further described. The driving pin 36 surrounds the material region of the housing part 2b between a guide channel 38 for the adjusting slide 34 and the Cylinder-shaped base 27a for the control part 25 in a slot extending in the pivoting plane 41st

Zur Begrenzung der Schwenkbewegung sind am Gehäuse 2 dem Steuerteil 25 gegenüberliegend an den Gehäuseseiten, die quer zur Schwenkebene angeordnet sind zwei Anschläge 42a, 42b vorgesehen, gegen die das Steuerteil 25 mit seiner Umfangsfläche stößt. Die Anschläge 42a, 42b sind einstellbar und vorzugsweise durch Stellschrauben gebildet, die von außen in entsprechend schräg angeordneten Gewindelöchern eingeschraubt und jeweils durch eine an der Außenseite der Wandung des Gehäuses 2 anliegende Mutter verkontert sind. To limit the pivoting movement are the housing 2 the Control part 25 opposite to the housing sides, the Arranged transversely to the pivot plane are two stops 42a, 42 b provided, against which the control part 25 with his Peripheral surface abuts. The stops 42a, 42b are adjustable and preferably formed by setscrews of outside in corresponding obliquely arranged threaded holes screwed in and each one by one on the outside of the Wall of the housing 2 adjacent mother are verkontert.

Die Axialkolbenmaschine 1 weist eine Meßvorrichtung 43 mit einem Schwenkwinkel-Sensor 44 zur Ermittlung des Schwenkwinkels auf, den die Zylindertrommel 8 und das Steuerteil 25, die im Funktionsbetrieb eine Schwenkeinheit bilden, einnehmen. Der Schwenkwinkel ist somit zwischen der Längsmittelachse 8a und der Drehachse 3b eingeschlossen.The axial piston machine 1 has a measuring device 43 with a swivel angle sensor 44 for determining the Swivel angle on the cylinder drum 8 and the Control part 25, which in functional operation a swivel unit form, take. The swing angle is thus between the Longitudinal axis 8a and the axis of rotation 3b included.

Beim Ausführungsbeispiel nach Fig. 1 sind die Meßvorrichtung 43 und der Sensor 44 im Bereich der dem Steuerteil 25 benachbarten Gehäusewand, hier dem deckelförmigen Gehäuseteil 2b, angeordnet, wobei der Sensor 44 mit dem Verstellschieber 34 zusammenwirkt.In the embodiment of Fig. 1, the measuring device 43 and the sensor 44 in the region of the control part 25th adjacent housing wall, here the lid-shaped Housing part 2b, arranged, wherein the sensor 44 with the Adjusting slide 34 cooperates.

Zur Wirkverbindung zwischen dem Verstellschieber 34 und dem Sensor 44 kann ein Hebelarm 46 vorgesehen sein, dessen freies Ende durch eine quer zum Verstellschieber 34 gerichtete Kulissenführung 47 mit dem Verstellschieber 34 verbunden ist.For the operative connection between the adjusting slide 34 and the Sensor 44, a lever arm 46 may be provided, whose free end by a transverse to the adjusting slide 34th directed slide guide 47 with the adjusting slide 34th connected is.

Beim Ausführungsbeispiel ist der Sensor 44 auf der dem Steuerteil 25 abgewandten Seite des den Verstellschieber 34 enthaltenden Gehäuseteils 2b angeordnet. Der Hebelarm 46 kann starr mit dem Sensor 44 oder einem Verstell- bzw. Schwenkteil 48 verbunden sein, das mit dem Sensor 44 zusammenwirkt. Der Sensor 44 oder das Schwenkteil 48 können in einem Anbauteil 49 gelagert bzw. angeordnet sein, das an das Gehäuseteil 2b befestigbar, z. B. anschraubbar, ist und einen Durchführungsschlitz 51 für den Hebelarm 46 im Gehäuseteil 2b überdeckt und abdichtet. In der Verlängerung des Durchführungsschlitzes 51 ist im Anbauteil 49 ein Hohlraum 51a vorhanden, in dem der Hebelarm 46 der Längsbewegung des Verstellschiebers 34 folgen und hin und her schwenken kann. Beim Ausführungsbeispiel ist der Hebelarm 46 drehfest mit einer Welle 52 verbunden, die in Wirkverbindung mit dem Sensor 44 steht, der im Anbauteil 49 angeordnet sein kann oder am Anbauteil 49 angebaut, z. B. angeschraubt, sein kann, wie es Fig. 2 zeigt. Die Welle 52 kann nur in einer Hälfte des Anbauteils 49 angeordnet sein. In der anderen Hälfte des Anbauteils 49 kann in etwa koaxial eine verschließbare Öffnung, z. B. eine Gewindebohrung, vorgesehen sein, die durch einen Schraubstopfen 54 verschlossen ist.In the embodiment, the sensor 44 is on the Control part 25 opposite side of the adjusting slide 34th containing housing part 2b arranged. The lever arm 46 can be rigid with the sensor 44 or an adjustment or Pivoting part 48 to be connected to the sensor 44th interacts. The sensor 44 or the pivoting part 48 can be stored or arranged in an attachment 49, the at the housing part 2b fastened, z. B. screwed, is and a feedthrough slot 51 for the lever arm 46 in FIG Housing part 2b covered and sealed. In the extension the feedthrough slot 51 is in the attachment 49 a Cavity 51 a present in which the lever arm 46 of Follow longitudinal movement of the adjusting slide 34 and back and can swing her. In the embodiment of the Lever arm 46 rotatably connected to a shaft 52 which in Active connection with the sensor 44 is in the attachment 49th may be arranged or attached to the attachment 49, z. B. screwed, can be, as shown in FIG. 2 shows. The shaft 52 can be arranged only in one half of the attachment 49. In the other half of the attachment 49 may be approximately coaxial a closable opening, z. B. a threaded hole, be provided by a screw plug 54 is closed.

Beim Ausführungsbeispiel ist die Kulissenführung 47 zwischen dem Hebelarm 46 und dem Mitnehmerbolzen 36 ausgebildet. Hierdurch ist der Verstellschieber 34 von einer zusätzlichen Ausbildung für die Wirkverbindung freigestellt und die betreffenden Ausgestaltungsmerkmale sind am Bolzenkopf 37 abgewandten Ende des Mitnehmerbolzens 36 ausgebildet, bei dem es sich zum einen um ein kleines zum anderen um ein Bauteil handelt, an dem die betreffenden Ausgestaltungsmerkmale einfach und kostengünstig hergestellt werden können. Beim Ausführungsbeispiel weist der Mitnehmerbolzen 36 eine Kulissenausnehmung 55 auf, in die mit geringem Bewegungsspiel ein am freien Ende des Hebelarms 46 angeordneter entsprechend gerundeter Mitnehmerkopf 46a so einfaßt, daß bei einer Längsbewegung des Verstellschiebers 34 der Hebelarm 46 und das Schwenkteil 48 bzw. der Sensor 44 eine Schwenkbewegung um die Schwenkachse 52a der Welle 52 ausführen.In the embodiment, the slide guide 47 is between the lever arm 46 and the driving pin 36 is formed. As a result, the adjusting slide 34 of an additional Training for the active compound released and the relevant design features are on the bolt head 37th remote end of the driving pin 36 formed at on the one hand, a small one on the other one Component in which the concerned Design features made simple and inexpensive can be. In the embodiment, the Mitnehmerbolzen 36 a Kulissenausnehmung 55, in the with little play on a free end of the lever arm 46 arranged accordingly rounded driving head 46a so bordered that during a longitudinal movement of the adjusting slide 34, the lever arm 46 and the pivot member 48 and the sensor 44th a pivoting movement about the pivot axis 52a of the shaft 52nd To run.

Beim Ausführungsbeispiel nach Fig. 3 und 4, bei dem gleiche oder vergleichbare Bauteile mit gleichen Bezugszeichen bezeichnet sind, ist der Sensor 44 an der Umfangswand des Gehäuses 2 befestigt, und zwar in einer der Zylindertrommel 8 seitlich gegenüberliegenden Position an einer von den beiden Gehäuseseiten, die quer zur Schwenkebene angeordnet sind. Beim Ausführungsbeispiel befindet sich der Sensor 44 auf der Seite des Gehäuses 2, auf der sich die Zylindertrommel 8 in der Nullstellung bzw. in der Stellung geringsten Durchsatzvolumens dem Sensor 44 am nächsten befindet. Der Sensor 44 ist neben dem Anschlag 42a angeordnet und wirkt mit dem Umfangs der Zylindertrommel 8, hier mit dem dem Steuerteil 25 abgewandten Umfangsrandbreich der Zylindertrommel 8, zusammen. Der Sensor 44 ist lösbar befestigt und vorzugsweise von außen montierbar und demontierbar am Gehäuse 2 befestigt, vorzugsweise durch eine Schraubverbindung. Beim Ausführungsbeispiel weist der Sensor 44 einen Gewindebolzen 44a auf, mit dem er von außen in ein Gewindeloch in der Umfangswand 2d des Gehäuses 2 eingeschraubt und durch eine auf dem Gewindebolzen 44a aufgeschraubte Mutter 44b verkontert verkontert ist.In the embodiment of FIGS. 3 and 4, in the same or comparable components with the same reference numerals are designated, the sensor 44 on the peripheral wall of the Housing 2 fixed, in one of the cylinder drum 8 laterally opposite position to one of the two housing sides, which are arranged transversely to the pivoting plane are. In the embodiment, the sensor 44 is located on the side of the housing 2, on which the Cylinder drum 8 in the zero position or in the position lowest flow rate closest to the sensor 44 located. The sensor 44 is adjacent to the stop 42a arranged and cooperates with the circumference of the cylinder drum 8, here with the control part 25 facing away from Umfangsrandbreich the cylinder drum 8, together. The sensor 44 is detachable attached and preferably externally mountable and detachably attached to the housing 2, preferably by a Screw connection. In the embodiment, the sensor 44 a threaded bolt 44 a, with which he from the outside into a Thread hole in the peripheral wall 2 d of the housing second screwed in and through one on the threaded bolt 44a screwed nut 44b verkontert is verkontert.

Bei dem Sensor 44 handelt es sich um einen Abstands-Sensor, der den in seiner Längsrichtung gerichteten Abstand vom Umfang der Zylindertrommel 8 mißt. Das Messergebnis wird einer vorhandenen elektrischen Steuereinrichtung zum Steuern der Verstellvorrichtung 26 als Signal übermittelt, das als Istwert zur Steuerung einer vorhandenen Regelvorrichtung benutzt wird, z. B. bei einem Leistungsregler, einem Durchsatzvolumenregler oder einem Druckregler.The sensor 44 is a distance sensor, the distance in the longitudinal direction of the Circumference of the cylinder drum 8 measures. The measurement result is an existing electrical control device for controlling the adjusting device 26 is transmitted as a signal, as Actual value for controlling an existing control device is used, for. B. in a power controller, a Throughput volume controller or a pressure regulator.

Im Rahmen der Erfindung kann der Sensor 44 ein solcher Sensor sein, der nur oder gegebenenfalls zusätzlich zu seiner Abstandsmessung auf Markierungen 45 an der Zylindertrommel 8 reagiert und somit Umfangswegstrecken der Zylindertrommel 8 ermitteln kann und als Drehzahl-Messwertgeber funktionieren kann. Bei dieser Ausgestaltung erzeugt der Sensor 44 im Rotationsbetrieb der Axialkolbenmaschine 1 aufgrund der an ihm vorbeibewegten, durch die Markierungen 45 bedingten Unterschiede Signale, die von der elektrischen Steuereinrichtung zur Drehzahlmessung benutzt werden. Wenn der Sensor 44 gleichzeitig auch ein Abstands-Sensor ist, können beide Signale gleichzeitig ermittelt und der Steuereinrichtung übermittelt werden. Ein solcher Abstands-Sensor und/oder die Unterschiede bei der Rotation der Zylindertrommel 8 ermittelnder Sensor 44 ist an sich bekannt und braucht nicht weiter beschrieben zu werden. Die Signale können z. B. durch die Erfassung von Magnetfeldveränderungen erzeugt werden, die sich beim Durchdringen der Markierungen 45 eines dem Sensor 44 zugehörigen Magnetfeldes ergeben. Der Sensor 44 kann auch ein lichtempfindliches Element aufweisen, das durch die Markierungen 45 verursachte Lichtunterschiede wahrnimmt. Die Markierungen 45 können z. B. durch ein oder mehrere in der Umfangsrichtung einander folgende Erhebungen und Vertiefungen z. B. in Form von Kerben gebildet sein, die vorzugsweise in der Längsrichtung der Zylindertrommel 8 länglich ausgebildet sind, damit beim Schwenken der Zylindertommel 8 sich ergebende Längsbewegungen der Meßstellen unschädlich sind.Within the scope of the invention, the sensor 44 may be such Be sensor that only or optionally in addition to its distance measurement on marks 45 at the Cylinder drum 8 reacts and thus circumferential distances of the Cylinder drum 8 can determine and as a speed sensor can work. In this embodiment generates the sensor 44 in the rotational operation of Axial piston machine 1 due to the past him, differences caused by the marks 45, that of the electrical control device for Speed measurement can be used. When the sensor 44 at the same time also a distance sensor, both can Signals detected simultaneously and the controller be transmitted. Such a distance sensor and / or the Differences in the rotation of the cylinder drum 8 detecting sensor 44 is known per se and does not need to be further described. The signals can z. B. by the detection of magnetic field changes are generated the penetration of the marks 45 of the one Sensor 44 associated magnetic field. The sensor 44 may also have a photosensitive element which caused by the marks 45 light differences perceives. The markers 45 may, for. B. by a or several surveys following each other in the circumferential direction and depressions z. B. be formed in the form of notches, the preferably in the longitudinal direction of the cylinder drum 8 are elongated, so when panning the Cylinder drum 8 resulting longitudinal movements of the Measuring points are harmless.

Claims (6)

  1. Axial piston machine (1) in sloping axle construction comprising a cylinder drum (8) which is rotatably mounted about its longitudinal centre line (8a) in a housing (2) and comprises piston apertures (11) distributed over its circumference, in which apertures pistons (12) are reciprocally displaceably mounted and are supported in an articulated manner on a drive pulley (3) likewise mounted in the housing (2), the cylinder drum (8) resting with its end face remote from the drive pulley (3) on a control part (25) with control channels, the control part being pivotally mounted with the cylinder drum (8) in the housing (2) about a first transversely extending swivelling axis (9) by an adjusting device (26), the adjusting device (26) comprising an adjusting slide (34) which is reciprocally displaceably mounted in the housing wall (2b) adjacent to the control part (25) and transversely to the longitudinal centre line (8a) of the cylinder drum (8) and is in driving connection with the control part (25), and a pivoting angle measuring device (43) with a pivoting angle sensor (44) being provided, characterised in that the sensor (44), or an adjusting part (48) cooperating with the sensor (44), is in driving connection with the adjusting slide (34).
  2. Axial piston machine according to claim 1, characterised in that the sensor (44) or the adjusting part (48) are pivotally mounted about a second swivelling axis (52a) extending substantially at a right angle to the swivelling plane of the cylinder drum (8).
  3. Axial piston machine according to claim 2, characterised in that the sensor (44) or the adjusting part (48) are pivotal by way of a lever arm (46) which is in swivelling driving connection with the adjusting slide (34) by way of a link guide (47).
  4. Axial piston machine according to any one of the preceding claims, characterised in that the sensor (44) and the adjusting part (48) are arranged on the side, remote from the control part (25), of the adjusting slide (34), in particular on the outer side of the housing wall (2b) receiving the adjusting slide (34).
  5. Axial piston machine according to claim 3 or 4, characterised in that the adjusting slide (34) is in driving connection with the control part (25) by way of a driving pin (36) protruding from the adjusting slide and the link guide (47) is arranged between the lever arm (46) and the end, which is remote from the control part (25), of the driving pin (36).
  6. Axial piston machine according to any one of the preceding claims, characterised in that the sensor (44) and/or the adjusting part (48) is/are arranged in an add-on piece (49) which seals a lead through-slot (51) in the housing wall (2d) for the lever arm (46).
EP02006177A 2001-04-19 2002-03-19 Variable capacity axial piston machine with inclination angle sensor Expired - Lifetime EP1251271B1 (en)

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DE10119236A DE10119236C1 (en) 2001-04-19 2001-04-19 Axial piston machine with an inclined axis design, with a swivel angle sensor
DE10119236 2001-04-19

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EP1251271A3 EP1251271A3 (en) 2004-03-24
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CN102405350A (en) * 2009-04-21 2012-04-04 罗伯特·博世有限公司 Device for measuring a set swept volume
CN102405350B (en) * 2009-04-21 2014-10-15 罗伯特·博世有限公司 Device for measuring a set swept volume

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DE10119236C1 (en) 2002-12-12
EP1251271A2 (en) 2002-10-23
EP1251271A3 (en) 2004-03-24
DE50203853D1 (en) 2005-09-15

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