EP1433954A1 - Machine à pistons axiaux - Google Patents

Machine à pistons axiaux Download PDF

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Publication number
EP1433954A1
EP1433954A1 EP04007090A EP04007090A EP1433954A1 EP 1433954 A1 EP1433954 A1 EP 1433954A1 EP 04007090 A EP04007090 A EP 04007090A EP 04007090 A EP04007090 A EP 04007090A EP 1433954 A1 EP1433954 A1 EP 1433954A1
Authority
EP
European Patent Office
Prior art keywords
axial piston
piston machine
drive shaft
teeth
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04007090A
Other languages
German (de)
English (en)
Other versions
EP1433954B1 (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 according to the generic term of Claim 2 is in inclined axis construction in EP 0 640 183 B1.
  • Axial piston machine have the pistons on their Drive shaft facing ends on ball heads with which they are pivotally mounted 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 trained on the conveyor elements in different Refinements for the in the interior of the housing Axial piston machine arranged fluid are arranged.
  • 1 and 2 of this document are the Conveying elements formed by blades that are approximately radial of the circumference of a body of revolution Projecting flange protrude radially extending mounting flange are attached, the by means of screws on the cylinder drum Side of the drive flange is attached.
  • 4 and 5 of this publication 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 protruding one Fastening plate formed and by means of this Fixing screws on the free, the cylinder drum facing end of the drive flange are attached.
  • the blades form pumping devices with which Functional operation of the axial piston machine in its Fluid classified into a housing interior Exhaust opening is promoted, the blades in the Radially opposite circumferential wall of the housing and with is connected to a tank.
  • the invention has for its object a Axial piston machine according to the preamble of claim 1 or 2 to simplify.
  • it should be a simple one and fast manufacturing can be achieved so that preferably also have the manufacturing costs reduced should.
  • the configuration according to the invention there is one essential feature of the configuration according to the invention, namely on the one hand the marking and on the other hand the Conveyor elements, formed on the retraction disc.
  • the Retraction disc is a component on which the relevant features of the invention easily and quickly can be prefabricated so that in the course of its Production with the configuration according to the invention can be prefabricated and other parts of the Axial piston machine can remain unchanged or additional components as they are in the prior art are required can be omitted.
  • the configurations according to the invention also the assembly or Disassembly simplified. It is particularly advantageous the features of the invention on the rotating body to train in one piece. This can be advantageous by punching and possibly also shaping and / or bending respectively.
  • the configurations according to the invention thus also enable advantageous production.
  • axial piston machines 1 it is those in inclined axis construction.
  • This have a closed housing 2, with a Pot-shaped housing part 3, the housing interior 4 releasably closed by a so-called connecting part 5 is that by means of indicated screws 6 is screwed to the free edge of the housing part 3.
  • a drive shaft 7 rotatably mounted Bottom wall 3a of the pot-shaped housing 3 in one Through hole 8 penetrated.
  • the cup-shaped housing part 3 in the area of it Circumferential wall 3b bent so that the Longitudinal central axes 9a, 9b of the bent or against each other kinked arranged housing sections Include an acute angle W.
  • the drive shaft 7 is in the arranged on the bottom housing section and through at least one roller bearing stored therein.
  • the bottom wall 3a can be formed in that in the peripheral wall 3b Sealing disc 3c inserted sealed and axially is fixed, the through hole 8, the drive shaft 7th interspersed with movement play and through a sealing ring is sealed in it.
  • roller bearings 11a, 11b for rotatable mounting of the Drive shaft 7 is provided, which in the region of the peripheral wall 3b of the bottom housing section in one appropriate bearing hole.
  • Control disc 14 On the inside of the connector 5 is one Control disc 14 with two diametrically opposite one another opposite and approximately parallel to the central axis 9b the control disc 14 extending control channels 15, the each with a feed line and one The discharge line in the connecting part 5 are connected.
  • a cylinder drum 16 At the Inside the control disc 14 is a cylinder drum 16, which has a coaxial guide hole 17 and several approximately axially parallel and distributed over the circumference arranged piston holes 18 which at their the Control channels 15 facing ends through tapered Feed and discharge channels 19 with the control channels 15 are connected.
  • the pilot hole 17 and the Piston holes 18 open on the control disk 14 facing away End of the cylinder drum 16.
  • Pistons 21 are axially back and forth in the piston holes 18 displaceable, preferably also slightly pendulum, stored, with the control disc 14 facing Limit ends of working chambers 22 in the piston holes 18 and with their head ends facing away from the control disk 14 protrude from the cylinder drum 16 and by means of Support joints 23, in particular ball joints, on all sides are pivotally connected to the drive shaft 7.
  • the Support joints 23 are at a right angle to Central axis section 9a extending bearing plane E, the arranged at an acute angle to each other Housing sections obliquely to the central axis section 9b extends.
  • a center pin 24 is formed and by a Support joint 25 pivotally connected to the drive shaft 7, which extends into the guide hole 17 and therein can be moved axially back and forth with little movement is stored.
  • a compression spring 26 in particular a coil spring, which the cylinder drum 16th against the control disc 14 with a certain axial Force biased.
  • the compression spring 26 in a hole opening at the end arranged in the central pin 24, where they are at the bottom of the Supporting holes and against an inner shoulder surface 27 of the Cylinder drum 16 acts.
  • the Support joints 23 for the pistons 21 and preferably also the support joint 25 for the central pin 24 each a hemispherical dome 28 in the inner, preferably flat end face 29 of the drive shaft 7 and a retraction disc 31 common to all pistons 21 formed, which engages behind the spherical piston ends and thus prevents it from getting out of the calottes 28 einfernen.
  • the retraction plate 31 has the number and withdrawal holes arranged in the position of the domes 28 32 on whose edges the associated ball head 21a reach behind and thus positively against Prevent moving out of the calotte 28. in principle it is sufficient for this if the hole edges the ball heads 21a reach behind, whereby they are smaller than the Diameter of the ball heads 21a or their equator.
  • the hole wall surface 32a Retraction holes 32 so conical that they is tangent to the associated ball head 21a or to form a spherical segment shape that the Perforated wall surface 32a on the spherical surface of the associated ball head 21a abuts.
  • the former case there is a linear arrangement between the Ball head 21a and the perforated wall surface 32a.
  • the second case there is a flat area between these two surfaces Investment.
  • the support bearing 25 for the central pin 24 can with a calotte 28 in the drive shaft 7 and a withdrawal hole 32 in the retraction plate 31 can be designed accordingly.
  • the retraction disc 31 is detachable on the drive shaft 7 attached, preferably screwed.
  • a A plurality of cap screws 33 are used, the axially parallel Feedthrough holes 34 in the withdrawal plate 31 grasp and into corresponding threaded holes 34a in the Drive shaft 7 are screwed in.
  • Sensor 36 attached to the housing 2, which is in rotation the axial piston machine 1 due to it moved past, through the teeth 35a and the tooth gaps 35b conditional differences generates signals that are not in a shown signal processing device for Speed measurement can be used.
  • a sensor 36 is known per se and need not be described further become.
  • the signals can e.g. B. by detecting Magnetic field changes are generated, which at Penetration of teeth 35a and gaps 35b of one of the Sensor associated magnetic field result. That is why advantageous, the retraction disc 31 made of metal, especially steel or alloy steel.
  • the Sensor may also include a photosensitive element that the shadowing caused by the teeth 35a perceives.
  • the sensor 36 is preferably in the interior 4 of the housing arranged, being in the present embodiment the peripheral wall 3b from the outside in a through hole 37 grasped and z. B. is inserted or screwed in, preferably in a in the peripheral wall 3b screwed socket 38.
  • the sensor 36 is through a electrical line 39 with an associated connected electronic control device.
  • 35 markings instead of the number ring 39 of any kind can be provided, on which the sensor 36 responded to the delivery of signals.
  • a photosensitive sensor 36 can e.g. B. light / dark contrast markings 39 may be provided.
  • the teeth 35a extend axially parallel, wherein they can be bent accordingly.
  • the radial dimension a of teeth 35a may be smaller than that in Circumferential dimension b.
  • the in the Circumferential direction dimension c of the tooth gaps 35b can correspond to dimension b.
  • the cross-sectional size of the drive shaft 7 is smaller can be dimensioned as that of the calottes 28 ingested cross-sectional size, it is advantageous to Drive shaft 7 on its facing the cylinder drum 16 form inner end with a flange 7a, in which the Calottes 28 and support joints 23 are formed.
  • the markings 39 are formed by molded parts, it is advantageous to use these molded parts in one piece Form retraction plate 31, as is the case with a ring gear 35 is possible. It is further beneficial to the teeth 35a in one piece by punching on the retraction disc 31 train.
  • the total retraction plate can be made by punching, e.g. B. by punching a corresponding circuit board, in particular by stamping of a sheet.
  • the teeth can be bent and the Hole edges of the withdrawal holes 32 embossed or by pressure be deformed.
  • the one located in the interior 4 of the housing Fluid of the axial piston machine 1 preferably to circulate continuously.
  • the above-described molded parts or teeth 35a as Conveying elements 40 serve, whereby the fluid to a Outlet opening 41 in the peripheral wall 3b and through itself extending from the outlet opening 41 to a tank Promote leadership (not shown).
  • the teeth 35a conveying elements one Form conveyor it is advantageous to existing annular space between the conveyor elements 40 and the peripheral wall 3b larger in the region of the outlet opening 41 train than in the rest of the area or this annulus to continuously enlarge towards the outlet opening 41.
  • the bearing level E on the front side of the drive shaft 7 runs, it requires a considerable thickness of the Retraction disc 31 to ensure a secure grip behind the To reach piston heads 21a.
  • the perforated surfaces 32a are preferably segmented or annular bearing lugs 43 formed by Hole edge of the withdrawal holes 32 towards the drive shaft 7 stand out and in corresponding extensions 44 of Dome 28 protrude, which are up to about the equator of Dome 28 extend.
  • the bearing approaches 43 are preferably molded in one piece. It can be Edge areas of an associated ball head 21a act that bent into the axially protruding shape accordingly and / or are formed by pressure.
  • the retraction plate 31 allows the thickness d of the retraction plate 31 to be small dimensioned, e.g. B. less than the axial length of the Bearing lugs 43.
  • the retraction plate is 31 preferably a stamped part or a stamped / bent part, or Stamping / molding.
  • Axial piston machine 1 with regard to its throughput volume not adjustable. It is a so-called Constant machine. 3 in the embodiment the throughput volume of the axial piston machine can be reduced or expandable.
  • a known, adjusting device generally designated 45 with a Adjustment member 46, the z. B. with the control disc 14 in Operational connection is established and with which the cylinder drum 16 between a minimum position and a maximum position adjustable and preferably also in intermediate positions is adjustable. The minimum and maximum position is limited by side stops 47, 48 by the Circumferential wall 3b formed 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)
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
DE10030147A DE10030147C1 (de) 2000-06-20 2000-06-20 Axialkolbenmaschine
DE10030147 2000-06-20
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 true EP1433954A1 (fr) 2004-06-30
EP1433954B1 EP1433954B1 (fr) 2005-03-02

Family

ID=7646246

Family Applications (2)

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

Family Applications Before (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) EP1292768B1 (fr)
DE (3) DE10030147C1 (fr)
WO (1) WO2001098656A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1631744B1 (fr) * 2003-06-11 2007-02-28 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
US7721687B1 (en) 2006-04-17 2010-05-25 James Lockshaw Non-reciprocating, orbital, internal combustion engine
US8161924B1 (en) 2006-04-17 2012-04-24 James Lockshaw Orbital, non-reciprocating, 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655689A (en) * 1985-09-20 1987-04-07 General Signal Corporation Electronic control system for a variable displacement pump
JPS62201366A (ja) * 1986-02-28 1987-09-05 Diesel Kiki Co Ltd 圧縮機の回転速度検出装置
EP0419984A2 (fr) * 1989-09-25 1991-04-03 Vickers Incorporated Réglage électro-hydraulique pour une machine hydraulique
DE9408860U1 (de) * 1994-05-31 1994-07-21 INA Wälzlager Schaeffler KG, 91074 Herzogenaurach Axialkolbenmaschine
EP0640183B1 (fr) * 1992-05-14 1996-03-13 Brueninghaus Hydromatik Gmbh Machine hydrostatique avec evacuation de l'huile de fuite

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135031A (en) * 1989-09-25 1992-08-04 Vickers, Incorporated Power transmission
DE19649195C1 (de) * 1996-11-27 1998-01-08 Brueninghaus Hydromatik Gmbh Axialkolbenmaschine mit Lagerspülung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655689A (en) * 1985-09-20 1987-04-07 General Signal Corporation Electronic control system for a variable displacement pump
JPS62201366A (ja) * 1986-02-28 1987-09-05 Diesel Kiki Co Ltd 圧縮機の回転速度検出装置
EP0419984A2 (fr) * 1989-09-25 1991-04-03 Vickers Incorporated Réglage électro-hydraulique pour une machine hydraulique
EP0640183B1 (fr) * 1992-05-14 1996-03-13 Brueninghaus Hydromatik Gmbh Machine hydrostatique avec evacuation de l'huile de fuite
DE9408860U1 (de) * 1994-05-31 1994-07-21 INA Wälzlager Schaeffler KG, 91074 Herzogenaurach Axialkolbenmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 053 (P - 668) 18 February 1988 (1988-02-18) *

Also Published As

Publication number Publication date
DE10030147C1 (de) 2002-06-06
EP1292768A1 (fr) 2003-03-19
US20030136359A1 (en) 2003-07-24
DE50104620D1 (de) 2004-12-30
EP1292768B1 (fr) 2004-11-24
DE50105498D1 (de) 2005-04-07
WO2001098656A1 (fr) 2001-12-27
EP1433954B1 (fr) 2005-03-02
US6779433B2 (en) 2004-08-24

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