EP1433954B1 - Machine à pistons axiaux - Google Patents

Machine à pistons axiaux Download PDF

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Publication number
EP1433954B1
EP1433954B1 EP04007090A EP04007090A EP1433954B1 EP 1433954 B1 EP1433954 B1 EP 1433954B1 EP 04007090 A EP04007090 A EP 04007090A EP 04007090 A EP04007090 A EP 04007090A EP 1433954 B1 EP1433954 B1 EP 1433954B1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
axial piston
teeth
housing
piston engine
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
EP04007090A
Other languages
German (de)
English (en)
Other versions
EP1433954A1 (fr
Inventor
Werner Brosch
Raimund Roth
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
Original Assignee
Brueninghaus Hydromatik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP1433954A1 publication Critical patent/EP1433954A1/fr
Application granted granted Critical
Publication of EP1433954B1 publication Critical patent/EP1433954B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • F04B1/126—Piston shoe retaining means
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F04B23/106—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being an axial piston pump
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/14—Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1201—Rotational speed of the axis

Definitions

  • the invention relates to an axial piston machine according to the preamble of claim 1 or 2.
  • An axial piston machine is in Schrägachsenbauweise in EP 0 640th 183 B1.
  • this previously known Axial piston machine have the piston to their Drive shaft facing ends ball heads, with which they are mounted pivotally in spherical caps of the drive shaft.
  • a retraction device is in this axial piston machine not shown for reasons of simplification.
  • the Drive shaft is at its inner end as a flange formed on the conveyor elements in different Embodiments for in the housing interior of the Axial piston machine arranged fluid are arranged. According to Fig.
  • FIGS. 4 and 5 are the Conveying elements formed by blades, which are approximately radially from the circumference of a rotating body forming Drive flange protrude and at a radially are mounted extending mounting flange, the by means of screws on the cylinder drum facing Side of the drive flange is attached.
  • This document are acting as a centrifugal pump radially extending blades provided between the Drive flange and the cylinder drum are arranged and can either be assembled into a paddle wheel or in one piece with a vertically projecting Mounting plate formed and via this means Mounting screws on the free, the cylinder drum facing end face of the drive flange are attached.
  • the blades form pumping devices with which in Functional operation of the axial piston machine in its Housing interior classified fluid to a Outlet opening is conveyed to the blades in the Peripheral wall of the housing radially opposite and with connected to a tank.
  • the invention is based on the object Axial piston machine according to the preamble of claim 1 to simplify. It should in particular be a simple and fast manufacturing can be achieved, so that preferably also lower the manufacturing cost should.
  • axial piston machines 1 shown by way of example are those in bent-axis construction. These have a closed housing 2, with a cup-shaped housing part 3, the housing interior. 4 detachably closed by a so-called connection part 5 is that by hinted screws 6 is bolted to the free edge of the housing part 3.
  • a drive shaft 7 rotatably mounted, which is the Bottom wall 3a of the cup-shaped housing 3 in one Through hole 8 passes through.
  • Especially one Oblique-axis machine is adjustable throughput volume the cup-shaped housing part 3 in the region of his Peripheral wall 3b formed kinked, so that the Longitudinal central axes 9a, 9b bent against each other or kinked arranged housing part sections a include acute angle W.
  • the drive shaft 7 is in arranged on the bottom side housing portion section and through at least one rolling bearing stored therein.
  • the bottom wall 3a can be formed by that in the peripheral wall 3b a Shutter 3c used sealed and axially is fixed, the through hole 8, the drive shaft. 7 interspersed with movement and through a sealing ring is sealed therein.
  • At present Embodiment are two pieces axially side by side arranged rolling bearings 11a, 11b for rotatably supporting the Drive shaft 7 is provided in the region of the peripheral wall 3b the bottom side housing portion in a sit corresponding bearing bore.
  • a Control disc 14 On the inside of the connecting part 5 is a Control disc 14 with two diametrically opposed opposite and approximately parallel to the central axis 9b the control disk 14 extending control channels 15, the each with a supply line and a Discharge line in the connection part 5 are connected.
  • a cylinder drum 16 At the Inside the control disk 14 is a cylinder drum 16 on which a coaxial guide hole 17 and several about axially parallel and distributed on the circumference arranged piston holes 18 which at their the Control channels 15 facing ends by tapered Supply and discharge channels 19 with the control channels 15 are connected.
  • the guide hole 17 and the Piston holes 18 open on the control disk 14 facing away End of the cylinder drum 16.
  • piston 21 In the piston holes 18 are piston 21 axially back and forth displaceable, preferably also slightly pendulum, stored, with their the control disk 14 facing Limiting ends working chambers 22 in the piston holes 18 and with their control disc 14 facing away from the head ends protrude from the cylinder drum 16 and means Support joints 23, in particular ball joints, all sides pivotally connected to the drive shaft 7 are connected.
  • the Support joints 23 are located at a right angle to Central axis section 9a extending storage level E, the due to the acute angle to each other Housing part sections obliquely to the central axis portion 9b extends.
  • a center pin 24 In a manner comparable to the piston 21 is a center pin 24 and formed by a Support joint 25 pivotally connected to the drive shaft 7, which extends into the guide hole 17 and therein axially movable back and forth with little movement play is stored.
  • a compression spring 26 In particular a spiral spring, arranged the cylinder drum 16th against the control disk 14 with a certain axial Force pretension.
  • the compression spring 26 in a frontally opening hole arranged in the center pin 24, wherein they are located at the bottom of Lugs supported and against an inner shoulder surface 27 of the Cylinder drum 16 acts.
  • the Support joints 23 for the piston 21 and preferably also the support joint 25 for the center pin 24 respectively a hemispherical dome 28 in the inner, preferably flat end face 29 of the drive shaft 7 and a common for all piston 21 retraction disc 31st formed, which engages behind the spherical piston ends and thus prevents it from getting out of the cups 28 einfernen.
  • the return pulley 31 has in number and in the position of the cap 28 arranged return holes 32, whose edges the associated ball head 21 a engage behind and thus form-fitting against a Move out of the dome 28 prevent. in principle it is sufficient for this purpose, if the hole edges the ball heads 21a behind, where they are smaller than the Diameter of the ball heads 21a and their equator.
  • the hole wall surface 32 a of Retraction holes 32 so conical form that they tangentially abuts the associated ball head 21a or form such a spherical segment that the Hole wall surface 32a flat on the spherical surface of the associated ball head 21a is applied.
  • the former case results in a linear system between the Ball head 21a and the Lochfwandläche 32a.
  • the second case results between these two surfaces a planar Investment.
  • the support bearing 25 for the center pin 24 can with a dome 28 in the drive shaft 7 and a return hole 32 may be formed in the return pulley 31 accordingly.
  • the return pulley 31 is detachably connected to the drive shaft 7 fastened, preferably screwed.
  • This can be a Serve plurality of screws 33, the paraxial Feedthrough holes 34 in the retraction disk 31 pass through and into corresponding threaded holes 34a in the Drive shaft 7 are screwed.
  • a sprocket 35 with in the circumferential direction of equal teeth 35 a and Tooth gaps 35b formed.
  • a Sensor 36 attached to the housing 2, which is in rotation the axial piston machine 1 due to him passed by the teeth 35a and the tooth spaces 35b
  • the signals can z. B. by the detection of Magnetic field changes are generated during the Penetration of the teeth 35a and tooth spaces 35b of a Sensor associated magnetic field.
  • the retraction disc 31 made of metal, especially steel, or alloyed steel. Of the Sensor may also comprise a photosensitive element, that the shadowing caused by the teeth 35a perceives.
  • the sensor 36 is preferably in the housing interior 4 arranged, in the present embodiment the peripheral wall 3b from the outside in a through hole 37th encompassed and z. B. is inserted or screwed, preferably in a in the peripheral wall 3b screwed socket 38.
  • the sensor 36 is through a electrical line 39 with an associated electronic control device connected.
  • As part of the Invention can instead of the number wreath 35 marks Be provided 39 of any kind, to which the sensor 36th reacts to the delivery of signals.
  • a photosensitive sensor 36 may, for. B. light / dark contrast markers 39 be provided.
  • the teeth 35a axially parallel, wherein they can be bent accordingly.
  • the Radial dimension a of the teeth 35a be smaller than that in Circumferential direction dimension b.
  • the in the Circumferentially directed dimension c of the tooth spaces 35b may correspond to the dimension b.
  • the cross-sectional size of the drive shaft 7 is lower can be measured as that of the calotte 28 assumed cross-sectional size, it is advantageous to Drive shaft 7 at its the cylinder drum 16 facing inner end with a flange 7a form, in which the Dome 28 and support joints 23 are formed.
  • the markings 39 are formed by molded parts, It is advantageous, these moldings in one piece to the Forming return pulley 31, as in a sprocket 35 is possible. It is advantageous in the further, the teeth 35a by punching on the return pulley 31 in one piece train.
  • the retracting disk can be a total of are produced by punching, z. B. by punching a corresponding board, in particular by punching a sheet.
  • the teeth can be bent and the Hole edges of the return holes 32 embossed or by pressure be deformed.
  • Fluid of the axial piston machine 1 preferably continuously circulate.
  • the above-described moldings or teeth 35a as Conveying elements 40 serve, wherein the fluid to a Outlet opening 41 in the peripheral wall 3b and through a from the outlet opening 41 to a tank extending Promote pipe (not shown).
  • the also markings 39 and teeth 35a forming Conveying elements to form by blades that the Improve delivery performance.
  • the teeth 35a conveying elements of a Make conveyor it is advantageous to the existing annular space between the conveyor elements 40 and the peripheral wall 3b in the region of the outlet opening 41 larger form, as in the remaining area or this annulus to increase continuously towards the outlet opening 41.
  • the hole surfaces 32a are preferably segmented or annular bearing lugs 43 formed by the Hole edge of the retraction holes 32 to the drive shaft 7 back stand out and in corresponding extensions 44 of the Bulk 28 protrude, extending to about the equator of the Dome 28 extend.
  • the bearing approaches 43 are preferably integrally formed. It can be around Edge regions of an associated ball head 21a act, the bent in accordance with the axially projecting shape and / or are formed by pressure.
  • the thickness d of the return pulley 31 allows the thickness d of the return pulley 31 to be small measured, z. B. smaller than the axial length of Bearing approaches 43.
  • the retraction disc is 31 preferably a stamped part or a punched / bent part, or Stamping / molding.
  • FIG. 1 In the embodiment of FIG. 1 is the Axial piston machine 1 with respect to their throughput volume not adjustable. It is a so-called Constant machine.
  • the throughput volume of the axial piston machine can be reduced or enlargeable.
  • a known, generally designated 45 adjusting device with a Adjustment member 46, the z. B. with the control disk 14 in Active connection is and with the cylinder drum 16th between a minimum position and a maximum position adjustable and preferably also in intermediate positions is adjustable.
  • the minimum and maximum position is bounded by lateral stops 47, 48, by the Circumferential wall 3b formed by adjusting screws could be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Claims (8)

  1. Machine à pistons axiaux (1) comprenant un carter (2) avec compartiment intérieur (4) dans lequel un arbre d'entraínement (7) et un tambour à cylindres (16) agencé axialement à côté dudit arbre sont montés de manière rotative, dans laquelle :
    les axes médians longitudinaux (9a, 9b) de l'arbre d'entraínement (7) et du tambour à cylindres (17) s'étendent à l'oblique l'un par rapport à l'autre sous un angle (W) ;
    plusieurs trous de piston (18) s'étendant approximativement parallèlement à leur axe médian (9b) sont agencés dans le tambour à cylindres (16), trous dans lesquels des pistons (21) sont guidés axialement en translation en va-et-vient, pistons dont les extrémités de piston tournées vers l'arbre d'entraínement (7) sont reliées de manière pivotante sur tous les côtés à l'arbre d'entraínement (7) au moyen d'articulations de soutien (25);
    il est prévu un disque de rétraction (31) commun pour toutes les articulations de soutien (23), lequel empêche les extrémités de piston de s'éloigner axialement des articulations de soutien (23) ; et
    il est prévu un capteur (36) pour déterminer la vitesse de rotation de l'arbre d'entraínement (7), qui coopère avec des marquages (39) agencés de façon répartie en direction périphérique sur un composant tournant avec l'arbre d'entraínement (7) lors du fonctionnement,
    caractérisée en ce que les marquages (39) sont agencés dans la région périphérique du disque de rétraction (31).
  2. Machine à pistons axiaux selon la revendication 1, caractérisée en ce que les marquages (39) sont formés par des éléments de convoyage (40) ou par des dents (35a) d'une couronne dentée (35).
  3. Machine à pistons axiaux selon la revendication 2, caractérisée en ce que les éléments de convoyage (40) ou les dents (35a) dépassent radialement ou axialement du disque de rétraction (31).
  4. Machine à pistons axiaux selon la revendication 3, caractérisée en ce que les éléments de convoyage (40) ou les dents (35a) sont réalisés par estampage en un seul tenant sur le disque de rétraction (31).
  5. Machine à pistons axiaux selon l'une ou l'autre des revendications 3 ou 4, caractérisée en ce que les éléments de convoyage (40) ou les dents (35a) sont agencés sur la périphérie du disque de rétraction (31) et sont repliés axialement.
  6. Machine à pistons axiaux selon la revendication 2, caractérisée en ce que le capteur (36) est agencé dans le compartiment intérieur (4) du carter et s'étend de préférence de l'extérieur vers l'intérieur à travers un trou de traversée (37) dans le carter (2).
  7. Machine à pistons axiaux selon la revendication 6, caractérisée en ce qu'un trou de sortie (41) est agencé dans la région du carter (2) voisine des éléments de convoyage (40) ou des dents (35a), trou qui peut être fermé de préférence par une pièce de fermeture, par exemple, un bouchon à visser.
  8. Machine à pistons axiaux selon la revendication 7, caractérisée en ce que le trou de sortie (41) se trouve dans une région de paroi (42) du carter (2), laquelle délimite un espace annulaire entre les éléments de convoyage (40) ou les dents (35a) et le carter (2), et qui s'agrandit dans la direction périphérique vers le trou de sortie (41).
EP04007090A 2000-06-20 2001-03-15 Machine à pistons axiaux Expired - Lifetime EP1433954B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10030147 2000-06-20
DE10030147A DE10030147C1 (de) 2000-06-20 2000-06-20 Axialkolbenmaschine
EP01925467A EP1292768B1 (fr) 2000-06-20 2001-03-15 Moteur a pistons axiaux

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01925467.1 Division 2001-03-15

Publications (2)

Publication Number Publication Date
EP1433954A1 EP1433954A1 (fr) 2004-06-30
EP1433954B1 true EP1433954B1 (fr) 2005-03-02

Family

ID=7646246

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04007090A Expired - Lifetime EP1433954B1 (fr) 2000-06-20 2001-03-15 Machine à pistons axiaux
EP01925467A Expired - Lifetime EP1292768B1 (fr) 2000-06-20 2001-03-15 Moteur a pistons axiaux

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP01925467A Expired - Lifetime EP1292768B1 (fr) 2000-06-20 2001-03-15 Moteur a pistons axiaux

Country Status (4)

Country Link
US (1) US6779433B2 (fr)
EP (2) EP1433954B1 (fr)
DE (3) DE10030147C1 (fr)
WO (1) WO2001098656A1 (fr)

Families Citing this family (21)

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WO2004109107A1 (fr) * 2003-06-11 2004-12-16 Brueninghaus Hydromatik Gmbh Machine a pistons axiaux comportant un element de positionnement decale et came de commande pour une telle machine a pistons axiaux
DE10347086A1 (de) * 2003-06-11 2005-01-05 Brueninghaus Hydromatik Gmbh Axialkolbenmaschine mit versetztem Positionierelement und Steuerscheibe für eine solche Axialkolbenmaschine
DE10347085B3 (de) * 2003-10-10 2005-06-16 Brueninghaus Hydromatik Gmbh Hydrostatische Kolbenmaschine mit zwei hydraulischen Kreisläufen
DE102004010351B4 (de) * 2004-03-03 2006-02-09 Sauer-Danfoss (Neumünster) GmbH & Co OHG Hydrostatische Verstelleinheit mit Schrägscheibe, rotierendem Zylinderblock und einem Drehzahlgeber
US7275474B2 (en) * 2005-05-31 2007-10-02 Parker-Hannifincorporation Optical position sensing and method
US8161924B1 (en) 2006-04-17 2012-04-24 James Lockshaw Orbital, non-reciprocating, internal combustion engine
US7721687B1 (en) 2006-04-17 2010-05-25 James Lockshaw Non-reciprocating, orbital, internal combustion engine
DE102009058332B4 (de) * 2009-12-15 2019-11-28 Robert Bosch Gmbh Axialkolbenmaschine
DE102010026182A1 (de) * 2010-07-06 2012-01-12 Robert Bosch Gmbh Kolbenmaschine mit einem Sensor zur Drehzahlerfassung
US8555830B2 (en) 2011-10-14 2013-10-15 James Lockshaw Orbital, non-reciprocating, internal combustion engine
JP5063823B1 (ja) * 2012-04-13 2012-10-31 株式会社小松製作所 斜軸式アキシャルピストンポンプ・モータ
DE102012016069A1 (de) * 2012-08-14 2014-02-20 Robert Bosch Gmbh Rohteil, Triebwelle, Hydrostatische Maschine und Verfahren zur Herstellung einer Triebwelle für eine hydrostatische Maschine
EP3020969B1 (fr) 2014-11-11 2017-09-27 Danfoss A/S Agencement de pompe
US9624825B1 (en) 2015-12-02 2017-04-18 James Lockshaw Orbital non-reciprocating internal combustion engine
JP6800192B2 (ja) * 2018-09-28 2020-12-16 本田技研工業株式会社 内燃機関の回転数検出装置
DE102019202483A1 (de) * 2019-02-25 2020-08-27 Robert Bosch Gmbh Axialkolbenmaschine mit einstückiger Zählperforation
CN113833739A (zh) * 2021-09-28 2021-12-24 杭州力龙液压有限公司 传动轴、液压马达及工程机械
JP7774422B2 (ja) * 2021-11-09 2025-11-21 川崎重工業株式会社 シリンダブロック、及びそれを備える液圧装置
JP7738461B2 (ja) * 2021-11-09 2025-09-12 川崎重工業株式会社 液圧システム
US12372074B1 (en) * 2024-07-23 2025-07-29 Hamilton Sundstrand Corporation Piston retainer plate
DE102024207593A1 (de) * 2024-08-09 2026-02-12 Robert Bosch Gesellschaft mit beschränkter Haftung Axialkolbenmaschine in Schrägachsenbauweise mit Vorkompressionsvolumen

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JPS62201366A (ja) * 1986-02-28 1987-09-05 Diesel Kiki Co Ltd 圧縮機の回転速度検出装置
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DE19649195C1 (de) * 1996-11-27 1998-01-08 Brueninghaus Hydromatik Gmbh Axialkolbenmaschine mit Lagerspülung

Also Published As

Publication number Publication date
EP1292768B1 (fr) 2004-11-24
US20030136359A1 (en) 2003-07-24
DE10030147C1 (de) 2002-06-06
DE50104620D1 (de) 2004-12-30
WO2001098656A1 (fr) 2001-12-27
US6779433B2 (en) 2004-08-24
EP1292768A1 (fr) 2003-03-19
DE50105498D1 (de) 2005-04-07
EP1433954A1 (fr) 2004-06-30

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