EP1738081B1 - Moteur oscillant radial et procede de production de ce moteur - Google Patents

Moteur oscillant radial et procede de production de ce moteur Download PDF

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Publication number
EP1738081B1
EP1738081B1 EP05742373A EP05742373A EP1738081B1 EP 1738081 B1 EP1738081 B1 EP 1738081B1 EP 05742373 A EP05742373 A EP 05742373A EP 05742373 A EP05742373 A EP 05742373A EP 1738081 B1 EP1738081 B1 EP 1738081B1
Authority
EP
European Patent Office
Prior art keywords
stator
housing
vanes
rotor
stator 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.)
Not-in-force
Application number
EP05742373A
Other languages
German (de)
English (en)
Other versions
EP1738081A1 (fr
Inventor
Stefan Beetz
Winfried Krüger
Torsten Baustian
Joachim Uecker
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP1738081A1 publication Critical patent/EP1738081A1/fr
Application granted granted Critical
Publication of EP1738081B1 publication Critical patent/EP1738081B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type

Definitions

  • the invention relates to a swivel motor according to the preamble of claim 1 and to a corresponding manufacturing method according to the preamble of claim 2.
  • Such swivel motors are used in particular in the aviation and automotive industry to fulfill a wide variety of tasks.
  • a preferred field of application is the vehicle industry, in which the swivel motor is used in conjunction with stabilizers for roll stabilization of a motor vehicle.
  • Such a swivel motor is for example in the DE 197 25 412 C2 described.
  • This swing motor consists of a stator which is connected to a first stabilizer part, and a rotor which has connection to a second stabilizer part.
  • the stator has two radially aligned stator vanes and the rotor has two likewise radial rotor vanes.
  • the two stator blades and the two rotor blades in conjunction with two end caps form two opposite hydraulic working chambers so that the stator blades and the rotor blades can be pivoted to one another against the hydraulic load in one of the two working chambers.
  • each stator blade is equipped with a frame sealing element which is inserted in the stator and sealingly abuts the outer periphery of the rotor, while each rotor blade carries a same frame sealing element, which bears sealingly on the inner circumference of the stator.
  • stator and the two stator blades are made in one piece, resulting in a complicated contour of the inner surfaces.
  • These inner surfaces have to fulfill different tasks, wherein the lateral surfaces of the stator vanes are designed for a pure stop function, while the inner peripheral surfaces of the stator act as sliding and sealing surfaces.
  • a cold-extruded tube is used as the starting part, which is first turned off to the corresponding lengths of a stator housing. Thereafter, the inner contour of each blank is finished by the manufacturing process spaces in three moves.
  • a swivel motor equipped with such a stator does not achieve its performance parameters because, because of the roughness of the sealing surfaces, the inner tightness between the pressure-carrying working chamber and the unpressurized working chamber can not be guaranteed. Because of the rough surface of the stator, the frame sealing elements are also subject to higher wear, so that the pivoting motor also has only a limited life. Furthermore, the production of such a stator is in particular by the Clearance process manufacturing technically very expensive and expensive.
  • the US 5,979,163 also shows a hydraulic der- / or rotary actuator.
  • the rotor pivots in a stator housing and its rotation is limited by the fixed stators.
  • the device shown here is as it were asperssbegrenzer and as a rotary actuator in suspension.
  • the DE 29 05 193 describes a fluid-actuated rotary drive, which is provided with the stator housing, here end plates, firmly screwed stator vanes. These also limit the rotational movement of a hydraulically driven rotor.
  • the JP 10281108 shows a hydraulic rotary actuator, the stator vanes are defined from the inside in the stator housing.
  • the invention is therefore based on the object to improve the surface quality of the inner peripheral surfaces of the stator of a generic swing motor and at the same time to reduce the manufacturing cost.
  • the swivel motor consists of a stator 1 and a rotor 2, wherein the stator 1 on the one hand with a first stabilizer part 3 and the rotor 2 on the other hand is connected to a second stabilizer part 4.
  • the stator 1 consists of a cylindrical stator housing 5, a first stator cover 6 arranged on the one hand of the stator housing 5 and a second stator cover 7 located on the other side of the stator housing 5. Both stator covers 6, 7 are firmly bolted to the stator housing 5 and are each provided with a continuous bearing bore. In the opposite bearing bores of the two stator cover 6, 7, a rotor shaft 8 of the rotor 2 is rotatably fitted and sealed by respective sealing elements 9, 10 with respect to the two stator covers 6, 7 hydraulically.
  • the rotor 2 has two opposite rotor blades 11. These rotor blades 11 are integrally formed with the rotor shaft 8 and matched with their radially oriented heads on the inner wall of the stator 5. For this purpose, each rotor blade 11 is provided with a, over its entire axial length extending and groove-shaped recess, in a frame sealing element 12 is inserted.
  • This frame sealing element 12 consists in a known manner of a plastic with an elastomeric core and a circumferential sealing frame, preferably made of a PTFE. This frame sealing element 12 lies in a sealing manner with one of its long legs on the inner circumferential surface of the stator housing 5 and with its two short legs on both stator covers 6, 7.
  • stator 5 two opposite stator blades 13 are used, which are also each equipped with a groove extending over its entire axial length and groove-shaped.
  • a frame sealing element 12 is fitted in each case, which rests in a sealing manner with one of its long legs on the outer peripheral surface of the rotor shaft 8 and with its two short legs on both stator cover 6, 7.
  • two opposing and pressure equal pressure chambers 14 and two opposite and equal pressure discharge chambers 15 form, which are volume variable by the limited relative pivoting between the stator blades 13 and the rotor blades 11.
  • the pressure equality of the respective opposite pressure chambers 14 and drainage chambers 15 is achieved by introduced in the rotor shaft 8 connecting channels 16.
  • stator housing 5 and the two stator blades 13 are now designed in two parts in a special way.
  • the stator housing 5 in one embodiment according to the Fig. 3 which is not part of the invention, formed as a tube and has two opposite and longitudinal receiving slots 17 with a limited length for the two stator vanes 13. Accordingly, each stator vane 13 after the Fig. 4 equipped with a longitudinal receiving spring 18. Everybody owns it Receiving slot 17 has a circumferential conical surface, which increases the receiving slot 17 in the radial direction from the inner diameter to the outer diameter of the stator housing 5. In contrast, each receiving spring 18 of the stator blade 13 has a circumferential conical surface, which decreases in the radial direction from the inside to the outside.
  • the inner dimensions of the receiving slot 17 and the outer dimensions of the receiving spring 18 are coordinated so that the smaller dimensions of the receiving slot 17 and the larger dimensions of the receiving spring 18 are compatible with each other.
  • the cone angle is chosen so that in the fitted state results in a suitable for a weld seam 19.
  • the tubular stator housing 5 has two opposite and extending over the length of the stator housing 5 keyways 20.
  • the keyways 20 have on top of that in cross section a dovetail shape.
  • Matching is the stator blade 13 after the Fig. 8 provided with external dimensions, which allows axial insertion of the stator blade 13 in the corresponding keyway 20 and prevents radial falling out of the keyway 20.
  • the wedge angle of the splines 20 and the outer shape of the stator blade 13 are the same size and chosen so that adjusts a clamping and self-locking frictional engagement.
  • Fig. 7 shows a clamping and self-locking frictional engagement between the stator housing 5 and each stator blade 13 by two parallel and rectified keyways 20 'in the stator housing 5 and corresponding wedge springs in the stator wing 13 can be achieved.
  • the two stator blades 13 are bolted to the tubular stator housing 5 and additionally secured in position.
  • the position is secured by a fitting groove 21 in Stator housing 5 and by a feather key 22 on the stator wing 13 in place of the tongue and groove fuse and a pin-hole fuse can be made.
  • each stator vane 13 is equipped with at least one longitudinal groove for a sealing element 23.
  • the tubular stator housing 5 has a position securing groove 24 extending over the entire axial length, while the stator vane 13 is designed as a feather key in its outer area.
  • the position securing groove 24 of the stator housing 5 and the feather key area of the stator vane 13 form a groove-spring connection, which exclusively assumes the task of preventing rotation.
  • the anti-rotation like the Fig. 12 shows, also consist of two parallel Lagertechnischsnuten 24 'in the stator housing 5 and accordingly two feather keys in the stator blade 13.
  • stator vane 13 In the area of its side surfaces protruding from the stator housing 5, the stator vane 13 is wedge-shaped over its entire axial length. Between the two stator vents 13 used against rotation in the stator housing 5, one spacer shell 25 is used on the one hand and on the other hand, the side surfaces of which also run wedge-shaped.
  • the wedge angle of the side surfaces of the stator vanes 13 and the side surfaces of the spacer shell 25 are the same size and chosen so that a clamping and self-locking frictional engagement is formed by the axial insertion of the spacers 25.
  • Such a stator 1 is manufactured as follows.
  • the tube is turned off to the corresponding lengths of the stator housing 5. Thereafter, the receiving slot 17 for the first embodiment, the keyways 20, 20 'for the second embodiment or the fitting groove 21 and the mounting holes for the third embodiment are machined into the stator housing 5 in a conventional machining manner.
  • stator blades 13 are manufactured in a conventional manner with the appropriate dimensions and shapes and inserted into the stator housing 5.
  • stator housing 5 and the stator blade 13 in the embodiment after Fig. 3 , which is not part of the invention, welded together by a low-distortion welding process, pressed together in the second embodiment or positionally secured and screwed together in the third embodiment.
  • the two end faces of the completed stator 1 are planned in a conventional manner and introduced the provided cover holes and sealing grooves.
  • stator blades 13 in the conventional manner with the s.den Lager Schweizersnuten 24, 24 'adapted dimensions and shapes produced and inserted into the stator housing 5.
  • the spacers 25 are manufactured in a conventional manner and in such dimensions and in such a form that they respectively fit between the two stator vanes 13 using an axially acting contact pressure and thereby bear against the inner peripheral surface of the stator housing 5 over the whole area.
  • stator blades 13 are inserted into the position securing grooves 24, 24 'and then pressed against each other using the distance shells 25 to the self-locking.

Claims (2)

  1. Moteur oscillant radial, constitué d'un stator (1) avec au moins une pale de stator (13) dirigée radialement vers l'intérieur et avec un rotor (2) monté dans le stator (1) avec des pales de rotor (11) qui forment entre elles au moins une chambre de compression (14) hydraulique de volume variable et autant de chambres d'écoulement (15) hydrauliques de volume variable, les chambres de compression (14) et les chambres d'écoulement (15) étant rendues étanches hydrauliquement l'une par rapport à l'autre par des éléments d'étanchéité en cadre (12) dans les pales de stator (13) et les pales de rotor (11),
    le stator (1) étant réalisé en deux parties et étant constitué d'un carter de stator (5) et de la pale de stator (13), la pale de stator (13) étant insérée dans le carter de stator (5) de manière immobile en rotation,
    caractérisé en ce que
    pour un blocage en rotation le carter de stator (5) possède pour chaque pale de stator (13) au moins une rainure de blocage de position (24, 24') s'étendant sur toute la longueur axiale, et dans sa zone extérieure, la pale de stator (13) est réalisée sous la forme d'un ressort d'ajustage, tandis que pour une liaison par friction de serrage et autobloquante chaque pale de stator (13) est réalisée en forme de coin dans la zone de ses surfaces latérales, sur toute sa longueur axiale, et est insérée entre deux pales de stator (13) d'une part, et d'autre part une coquille d'écartement (25) respective dont les surfaces latérales s'étendent également en forme de coin.
  2. Procédé de fabrication d'un moteur oscillant radial dans lequel le rotor (2) est fabriqué de manière classique et est complété avec le stator (1), le stator (1) étant coupé à longueur dans un matériau en barre creuse, le contour intérieur est réalisé puis les surfaces latérales sont aplanies et pourvues d'entailles pour des éléments d'étanchéité et de trous pour la fixation des couvercles de stator (6, 7), caractérisé en ce que le stator (1) est assemblé de manière inséparable à partir d'un carter de stator (5) et de différentes pales de stator (13),
    - pour la fabrication d'un carter de stator (5) on utilise un tube du commerce et on pratique dans le tube sectionné, dans la zone des pales de stator (13) à insérer, des moyens d'assemblage s'étendant longitudinalement, et
    - chaque pale de stator (13) est réalisée avec son contour fini et on pratique ici des moyens d'assemblage s'étendant longitudinalement et adaptés au carter de stator (5),
    caractérisé en ce que
    pour la fabrication du carter de stator (5) on utilise un tube du commerce sans exigence particulière quant à la qualité de surface de la surface périphérique intérieure, le carter de stator (5) reçoit des rainures de blocage de position (24, 24') et chaque pale de stator (13) reçoit une forme extérieure adaptée aux rainures de blocage de position (24, 24') ainsi que des surfaces en coin latérales, et entre deux pales de stator (13) on insère une coquille d'écartement (25) avec des surfaces en coin latérales, les pales de stator (13) et les coquilles d'écartement étant pressées ensemble de manière autobloquante sur leurs surfaces en coin.
EP05742373A 2004-04-22 2005-04-14 Moteur oscillant radial et procede de production de ce moteur Not-in-force EP1738081B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004020190A DE102004020190A1 (de) 2004-04-22 2004-04-22 Radialer Schwenkmotor und Verfahren zu seiner Herstellung
PCT/DE2005/000681 WO2005103503A1 (fr) 2004-04-22 2005-04-14 Moteur oscillant radial et procede de production de ce moteur

Publications (2)

Publication Number Publication Date
EP1738081A1 EP1738081A1 (fr) 2007-01-03
EP1738081B1 true EP1738081B1 (fr) 2008-10-29

Family

ID=34967535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05742373A Not-in-force EP1738081B1 (fr) 2004-04-22 2005-04-14 Moteur oscillant radial et procede de production de ce moteur

Country Status (8)

Country Link
US (1) US20080124229A1 (fr)
EP (1) EP1738081B1 (fr)
JP (1) JP2007533903A (fr)
KR (1) KR20070002087A (fr)
CN (1) CN101031727A (fr)
AT (1) ATE412827T1 (fr)
DE (2) DE102004020190A1 (fr)
WO (1) WO2005103503A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006014140A1 (de) 2006-03-28 2007-10-04 Zf Friedrichshafen Ag Verfahren zum Herstellen eines Schwenkaggregats
DE112008001883A5 (de) * 2007-07-26 2010-06-10 Ixetic Bad Homburg Gmbh Schwenkmotor
DE112009000245A5 (de) * 2008-03-01 2011-01-20 Ixetic Hückeswagen Gmbh Schwenkmotorgehäuse
CN102280976B (zh) * 2010-06-10 2013-01-23 怀特(中国)驱动产品有限公司 定子的加工工艺方法
JP2012117625A (ja) * 2010-12-02 2012-06-21 Isel Co Ltd 直動軸受装置
SE538285C2 (sv) * 2012-05-18 2016-04-26 Turnset Ab Kring en vridningsaxel vridbart arrangemang
CN102922243A (zh) * 2012-12-04 2013-02-13 怀特(中国)驱动产品有限公司 整体式定子的加工方法
CN103352892A (zh) * 2013-07-19 2013-10-16 武汉科技大学 一种可径向拆解的叶片式液压摆动缸
DE102013223343A1 (de) 2013-11-15 2015-05-21 Zf Friedrichshafen Ag Bauteil für einen Schwenkmotor
CN103711638B (zh) * 2013-12-30 2016-04-06 北京航空航天大学 压力油膜密封摆叶马达
CN104564892B (zh) * 2015-01-15 2017-01-04 合肥工业大学 一种用于主动稳定杆的双叶片摆动液压马达
CN104747365A (zh) * 2015-04-03 2015-07-01 合肥工业大学 一种液压摆动马达
CN106499690B (zh) * 2016-11-01 2018-11-20 北京航空航天大学 一种框型密封的液压摆动马达
CN107893726A (zh) * 2017-12-14 2018-04-10 浙江腾荣环保科技有限公司 一种新型液压驱动转盘
CN110219771A (zh) * 2019-05-06 2019-09-10 南京理工大学 嵌套式叶片摆动液压马达

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US860461A (en) * 1907-01-03 1907-07-16 John B Sinclair Engine.
US2793623A (en) 1956-02-14 1957-05-28 Ex Cell O Corp Hydraulic motor having adjustable cushioning means
JPS4951986U (fr) * 1972-08-16 1974-05-08
DE2905193A1 (de) 1979-02-12 1980-08-21 Rogatti Fa Harri Druckmittelbetaetigter drehantrieb
US4492150A (en) 1983-07-01 1985-01-08 Yates Harlan W Actuator for mechanical apparatus
JPH10281108A (ja) 1997-03-31 1998-10-20 Taiyo Giken Kk ロータリーベーンアクチュエータ
DE19725412C2 (de) 1997-06-17 2001-02-22 Pnp Luftfedersysteme Gmbh Radialer Schwenkmotor
US5979163A (en) * 1997-12-29 1999-11-09 Circular Motion Controls, Inc. Rotationally pivotal motion controller

Also Published As

Publication number Publication date
DE502005005811D1 (de) 2008-12-11
JP2007533903A (ja) 2007-11-22
CN101031727A (zh) 2007-09-05
EP1738081A1 (fr) 2007-01-03
DE102004020190A1 (de) 2005-12-22
ATE412827T1 (de) 2008-11-15
KR20070002087A (ko) 2007-01-04
US20080124229A1 (en) 2008-05-29
WO2005103503A1 (fr) 2005-11-03

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