EP0654584A1 - Machine hydrostatique à pistons radiaux avec système de compensation axiale - Google Patents

Machine hydrostatique à pistons radiaux avec système de compensation axiale Download PDF

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Publication number
EP0654584A1
EP0654584A1 EP94114848A EP94114848A EP0654584A1 EP 0654584 A1 EP0654584 A1 EP 0654584A1 EP 94114848 A EP94114848 A EP 94114848A EP 94114848 A EP94114848 A EP 94114848A EP 0654584 A1 EP0654584 A1 EP 0654584A1
Authority
EP
European Patent Office
Prior art keywords
rotors
hydrostatic
machine according
intermediate floor
hydrostatic machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94114848A
Other languages
German (de)
English (en)
Other versions
EP0654584B1 (fr
Inventor
Gerhard Fähnle
Günther Nagel
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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Filing date
Publication date
Application filed by JM Voith GmbH filed Critical JM Voith GmbH
Publication of EP0654584A1 publication Critical patent/EP0654584A1/fr
Application granted granted Critical
Publication of EP0654584B1 publication Critical patent/EP0654584B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/06—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
    • F01B13/061—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders
    • F01B13/063—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders with two or more series radial piston-cylinder units
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/10—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B1/107—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
    • F04B1/1071—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
    • F04B1/1074—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks with two or more serially arranged radial piston-cylinder units

Definitions

  • the present invention relates to a hydrostatic radial piston machine according to the preamble of patent claim 1.
  • Double-flow radial piston machines constructed according to the system of axial thrust compensation for two rotors are known; in these machines, the rotors are fixed on a shaft so that they cannot rotate. Basically, based on this arrangement, both a hydrostatic pump and a hydrostatic motor can be represented. With regard to the prior art, reference is made, for example, to ...
  • the object on which the present invention is based is to specify a hydrostatic radial piston machine of the generic type in which the axial forces on the axis can be compensated.
  • the system should be able to represent a hydrostatic pump with one or two flows, a corresponding hydrostatic motor and a hydrostatic transmission.
  • All of the exemplary embodiments of hydrostatic radial piston machines shown in FIGS. 1 to 11 have a housing 1 (FIG. 1), 201 (FIG. 4), 301 (FIG. 7), 401 (FIG. 10), which has two, by means of an intermediate floor 5 (FIG. 1), 205 (FIG. 4), 305 (FIG. 7), 405 (FIG. 10). These interiors are closed from both sides via a housing cover 3, 4 (FIG. 1), 103, 204 (FIG. 4), 203, 304 (FIG. 7, FIG. 10).
  • a lifting ring 8, 9 (see FIG. 1), 109, 208 (see FIGS. 4, 7, 10) is mounted in each of the two subspaces (interior) 6, 7, both of which have at least one position shaft 10 are connected.
  • the two subspaces leave enough space to adjust the lifting rings 8, 9 of the hydrostatic pump according to FIG. 1 - as shown in FIG. 3 - by means of two adjusting pistons 32, 31 via a connecting shaft 11 and thus the stroke volume per revolution of the hydrostatic radial piston machine to a desired specific size.
  • the conjugated cam rings 109, 208 can be adjusted independently of one another with the aid of adjusting pistons 131, 132, 231, 232 (see reference numerals 111, 211).
  • the drive or output of the machine is via input and output shafts 2, 20 (FIG. 1, FIG. 7, FIG. 10) or 102, 202 (see FIG. 4) and via drivers 41, 42 each on a so-called cylinder star forming rotor 18, 19 passed.
  • the rotors 18, 19 have lateral control slots 21, 22 which correspond to kidney-shaped channels 23, 24 incorporated in axially arranged control disks 25, 26.
  • the axial These channels 23, 24 in the control disks 25, 26 are sealed by means of elastic sealing elements 38, 39.
  • the known radial piston machines have an axis 43 which is fastened in the respective intermediate base 5, 205, 305, 405 and at the ends of which the rotors 18, 19 are mounted on the one hand between thrust washers 37, 44 and on the other hand the control discs 25, 26.
  • a lifting ring 8, 9 (FIG. 1) or 109, 208 (FIG. 4, FIG. 7, FIG. 10) is provided for each rotor 18, 19, both of which are provided via a bearing shaft 10 in the respective intermediate floor 5, 205, 305, 405 are stored.
  • the displacement elements serving the function or use as a hydrostatic radial piston machine each consisting of the functional connection of a slide shoe or a slide block 14 and one articulated therewith connected (displacement) piston 15 exist.
  • These pistons 15 are each arranged in radial bores 16, 17 of one of the rotors 18, 19, which in turn are mounted such that they can be rotated easily, but are axially fixed — as already mentioned — driven or driven off via the drivers 41, 42.
  • the rotors 18, 19 are coordinated with one another as follows: As already mentioned, mutually facing axial lateral control slots 21, 22 are provided in the radial bores 16, 17 of the rotors 18, 19, through which the bores 16, 17 are open to the respective intermediate floor 5, 205, 305, 405.
  • the control slots 21, 22 in turn correspond to the kidney-shaped channels 23, 24 incorporated in the control disks (axial disks) 25, 26 (compare FIGS. 3, 6, 9, 11).
  • the control disks 25, 26 are in corresponding recesses are inserted on both sides of the intermediate floor 5, 205, 305, 405.
  • the axial thrust resulting from the pressurization of the (displacement) pistons 15 and the control slots 21, 22 is due to the clamping of the axis 43 in the intermediate floor 5, 205, 305, 405 between the control disk 26 supported thereon and a thrust washer 44 or on the intermediate floor 5, 205, 305, 405 supporting control disk 25 and a thrust washer 37 and thus not on the housing cover 3, 4; 103, 204; 203, 304 transmitted.
  • the two thrust washers 37, 44 are each preloaded relative to a collar 33, 34 on the axis 43, that the distance between the thrust washers and the intermediate floor or the control discs 25, 26 is slightly larger than the width of the rotor 18, 19 corresponds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Hydraulic Motors (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
EP94114848A 1993-10-19 1994-09-21 Machine hydrostatique à pistons radiaux avec système de compensation axiale Expired - Lifetime EP0654584B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4335513 1993-10-19
DE4335513 1993-10-19

Publications (2)

Publication Number Publication Date
EP0654584A1 true EP0654584A1 (fr) 1995-05-24
EP0654584B1 EP0654584B1 (fr) 1998-04-15

Family

ID=6500440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114848A Expired - Lifetime EP0654584B1 (fr) 1993-10-19 1994-09-21 Machine hydrostatique à pistons radiaux avec système de compensation axiale

Country Status (7)

Country Link
US (1) US5622052A (fr)
EP (1) EP0654584B1 (fr)
JP (1) JPH084548A (fr)
AT (1) ATE165139T1 (fr)
DE (1) DE59405708D1 (fr)
DK (1) DK0654584T3 (fr)
ES (1) ES2117180T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6021635A (en) * 1996-12-23 2000-02-08 Parker-Hannifin Corporation Dual orifice liquid fuel and aqueous flow atomizing nozzle having an internal mixing chamber
SE517873C2 (sv) * 1997-04-10 2002-07-30 Haegglunds Drives Ab Kolv till en hydraulisk radialkolvmotor samt hydraulisk radialmotor med sådan kolv
US6151990A (en) * 1998-05-06 2000-11-28 Tecumseh Products Company Hydrostatic transaxle having a casing split along one or more vertical planes
US6212994B1 (en) * 1999-06-07 2001-04-10 David A. Estrabrooks Positive displacement rotary machine
JP4040355B2 (ja) 2002-04-26 2008-01-30 スガツネ工業株式会社 ヒンジ
CN102720630B (zh) * 2012-06-08 2014-09-24 燕山大学 双转子壳体转动凸轮连杆滚柱多速马达
EP3513029B1 (fr) * 2016-09-16 2020-06-03 Robert Bosch GmbH Actionneur électro-hydraulique rotatif
WO2018205015A1 (fr) * 2017-05-06 2018-11-15 Kinetics Drive Solutions Inc. Variateur hydrostatique basé sur des machines à pistons radiaux

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2420853A1 (de) * 1973-05-04 1974-11-21 Breinlich Richard Dr Von fluid durchstroemter doppelmotor mit freilauf
FR2376944A1 (fr) * 1977-01-07 1978-08-04 Bosch Gmbh Robert Dispositif de reglage pour une machine a pistons radiaux multiple

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE83300C (fr) *
US2226481A (en) * 1938-06-29 1940-12-24 Eustace L Rose Hydraulic transmission
US2818707A (en) * 1950-10-09 1958-01-07 Sturm Erwin Rotary pump and motor hydraulic transmission
DE2301448C3 (de) * 1973-01-12 1980-01-24 Robert Bosch Gmbh, 7000 Stuttgart Hydrostatische Radialkolbenpumpe
AT345103B (de) * 1973-05-04 1978-08-25 Eickmann Karl Vierstroemige oder mehr als vierstroemige radialkolbenmaschine
DE2418164C3 (de) * 1974-04-13 1978-12-14 Voith Getriebe Kg, 7920 Heidenheim Innenbeströmte Radialkolbenmaschine
EP0110910B1 (fr) * 1982-06-03 1989-03-01 Unipat Ag Transmission hydrostatique avec pompe et moteur a pistons radiaux
DE3440219A1 (de) * 1983-11-03 1985-05-15 Unipat AG, Glarus Hydrostatische maschine
US5042252A (en) * 1990-02-22 1991-08-27 Unipat Ag Neutral shifting mechanism for hydrostatic transmission
DE4123675A1 (de) * 1991-07-17 1993-01-21 Bosch Gmbh Robert Hydrostatische kolbenmaschine
DE9208850U1 (de) * 1992-07-02 1992-09-10 J.M. Voith Gmbh, 7920 Heidenheim Hydrostatische Maschine mit axialem Schubausgleich
ATE129546T1 (de) * 1992-09-04 1995-11-15 Voith Gmbh J M Hydrostatische maschine mit axialem schubausgleich.
US5400594A (en) * 1992-09-04 1995-03-28 Tecumseh Products Company Slipper guide for a hydrostatic transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2420853A1 (de) * 1973-05-04 1974-11-21 Breinlich Richard Dr Von fluid durchstroemter doppelmotor mit freilauf
FR2376944A1 (fr) * 1977-01-07 1978-08-04 Bosch Gmbh Robert Dispositif de reglage pour une machine a pistons radiaux multiple

Also Published As

Publication number Publication date
DK0654584T3 (da) 1999-03-08
JPH084548A (ja) 1996-01-09
ES2117180T3 (es) 1998-08-01
DE59405708D1 (de) 1998-05-20
ATE165139T1 (de) 1998-05-15
EP0654584B1 (fr) 1998-04-15
US5622052A (en) 1997-04-22

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