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WO2000021183A1 - Dispositif d'entrainement - Google Patents

Dispositif d'entrainement Download PDF

Info

Publication number
WO2000021183A1
WO2000021183A1 PCT/DE1999/002914 DE9902914W WO0021183A1 WO 2000021183 A1 WO2000021183 A1 WO 2000021183A1 DE 9902914 W DE9902914 W DE 9902914W WO 0021183 A1 WO0021183 A1 WO 0021183A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive device
stator
rotor
rotors
toothing
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.)
Ceased
Application number
PCT/DE1999/002914
Other languages
German (de)
English (en)
Inventor
Hans Heckmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to JP2000575205A priority Critical patent/JP2002528025A/ja
Priority to EP99955694A priority patent/EP1119895A1/fr
Publication of WO2000021183A1 publication Critical patent/WO2000021183A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/06—Rolling motors, i.e. motors having the rotor axis parallel to the stator axis and following a circular path as the rotor rolls around the inside or outside of the stator ; Nutating motors, i.e. having the rotor axis parallel to the stator axis inclined with respect to the stator axis and performing a nutational movement as the rotor rolls on the stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
    • F16H25/2252—Planetary rollers between nut and screw

Definitions

  • the invention relates to a drive device.
  • Drive devices are known which consist of an electric motor, in particular a reluctance motor, and a flanged gear. So there are two components. This means that a relatively large amount of space is required and a corresponding weight is incurred.
  • the air gap between the stator and the rotor also causes losses which have a disadvantageous effect on the efficiency and thus on the performance.
  • the drive device with the features of claim 1 has the advantage that an electric motor and a transmission are combined into one component. This requires less space and has a lower weight.
  • the efficiency of the drive device is significantly improved compared to a conventional electric motor, because the Surface for the magnetic flux is increased and the air gap is minimized.
  • a non-magnetizable material is arranged in the slots of the poles in such a way that the entire stator has teeth on the entire diameter, which cooperates with the at least one rotor, this results in good concentricity.
  • This is further improved in that several rotors are provided, which are arranged in an annular space which is formed by the stator and an element, and in that the element has a toothing which meshes with the toothed rotors.
  • an electromotive planetary gear can be realized in a simple manner.
  • toothing of the element, the stator and the rotors is helical to the stator axis, this corresponds to an electromotive spindle drive, whereby either the rotors or the element can be used for the linear movement.
  • the teeth of the stator can be formed on its inside diameter or outside diameter, whereby an inner rotor or an outer rotor can be realized.
  • a particularly simple design results from the fact that a rotor is provided, that the element is designed as a cranked shaft which is rotatably arranged in a central longitudinal bore of the rotor, that the shaft has two parallel webs at the ends projecting from the rotor, which are perpendicular are arranged to the shaft and extend to the central axis of the stator, and that on the webs shaft sections are formed which protrude in the longitudinal direction from the drive device and are rotatably mounted on the drive device.
  • FIG. 1 shows a simplified front view of a drive device
  • FIG. 2 shows a detailed section from FIG. 1 with a first toothing
  • FIG. 3 shows a side view from the left according to FIG. 1 with a second toothing and a first possibility of storage
  • FIG. 4 shows a side view from the left according to FIG 1 with the toothing according to FIG. 3 and a second possibility of storage
  • FIG. 5 a simplified front view of a modified drive device
  • FIG. 6 a simplified front view of a further modified drive device
  • FIG. 7 a right side view according to FIG. 6.
  • a drive device 10 is shown in FIG.
  • the drive device 10 has a sun wheel designed as a stator 12.
  • the stator 12 is advantageously constructed as a stator laminated core.
  • dovetail-shaped grooves 18 are formed, which form three diametrically opposed pairs of grooves 18 ', 18'',18'''.
  • the six grooves 18 form six bar-shaped poles 20, which in turn form three diametrically opposite pole pairs 20 ', 20'',20'''.
  • Around each pole 20 is shown in FIG.
  • the drive device 10 has a sun wheel designed as a stator 12.
  • the stator 12 is advantageously constructed as a stator laminated core.
  • dovetail-shaped grooves 18 are formed, which form three diametrically opposed pairs of grooves 18 ', 18'',18'''.
  • the six grooves 18 form six bar-shaped poles 20, which in turn form three diametrically opposite pole pairs 20 ', 20'',20'''.
  • Pole pairs 20 ′, 20 ′′, 20 ′′ ′′ have a winding 22 that can be supplied with current.
  • the stator 12 of the drive device 10 thus has the structure of the stator of a so-called reluctance motor.
  • the windings 22 of the pole pairs 20 ', 20' ', 20' '' can therefore be energized in succession in a known manner so that a rotating magnetic field can be generated.
  • a non-magnetizable material 24 is advantageously arranged in the grooves 18 in such a way that the stator 12 has a toothing 26 over the entire inner diameter 16, also at the points interrupted by the grooves 20.
  • the material 24 can be, for example, a plastic or a resin with which the stator 12 is poured out after the windings 22 have been installed.
  • the toothing 26 can be produced, for example, when the stator 12 is poured out using a correspondingly shaped tool which is guided into the stator 12 and has the shape of the toothing 26. It is also possible to produce the toothing 26 after the pouring by machining.
  • the drive device 10 In the longitudinal direction of the drive device 10 or centered on the stator 12 and in alignment with the stator axis 14, the drive device 10 has an element 28 rotatably mounted on the drive device 10, the outer diameter 30 of which has a toothing 32.
  • the element 28 has the function of an output element.
  • the element 28 protrudes from the drive device 10 and has the shape of an output shaft outside the drive device 10, as a result of which a torque can be tapped off from the element 28.
  • the storage takes place in a known manner on housing parts of the drive device 10, not shown for example a front and rear flange.
  • the element 28 and the inner diameter 16 of the stator 12 form an annular space 34.
  • the four planet gears designed as rotors 36 are arranged, a different number also being possible.
  • the four rotors 36 form two pairs of rotors 36 ', 36'', which are diametrically opposed.
  • the toothing 32 of the element 28 meshes with an external toothing 37 of the rotors 36 and thus also serves for the rotatable mounting of the rotors 36.
  • the rotors 36 can be connected to their end faces 38 each with a ring 40 - indicated by dashed lines. This makes it possible to dispense with the material 24.
  • windings 22 of the pole pairs 20 ', 20' ', 20' '' are energized, a magnetic field is built up which exerts a force on parts which consist of a material which reacts to a magnetic field.
  • a magnetic field is built up which exerts a force on parts which consist of a material which reacts to a magnetic field.
  • Reluctance motor is common, a magnetic rotating field is generated, whereby the rotor pairs 36 ', 36' 'rotate.
  • the rotational movement of the element 28 and the transmissible torque can be tapped in a known manner at an end of the element 28 which protrudes from the drive device 10 and is designed as a shaft end.
  • the drive device 10 from FIGS. 1 and 2 represents the combination of an epicyclic gear in the form of a planetary gear and an electric motor, in particular a reluctance motor.
  • an electric motor in particular a reluctance motor.
  • the interlocking toothings 37, 26 of the stator 12 and the rotors 36 increase the surface area between them, which increases the efficiency and thus the performance.
  • the required transmission ratio can be achieved in a simple manner, as in the case of a planetary gear train, by the choice of the diameter of the stator 12, the element 28 and the rotors 36.
  • FIG. 3 shows a drive device 10a, the toothing 26a of the stator 12a, the toothing 32a of the element 28a and the toothing 37a of the rotors 36a extending helically to the longitudinal direction of the drive device 10 or to the stator axis 14.
  • the element 28a is fixed axially, for example - depending on the load - by one or two ball bearings 42, one in FIG is represented symbolically.
  • the element 28a serves solely to support the rotors 36a.
  • the rotors 36a are axially movable. They are rotatably mounted on rods 44 which protrude beyond the drive device 10a.
  • a plate 46 is attached to the ends of the rods 44 outside the drive device 10a.
  • Such a plate 46 can also be attached to both ends of the rods 44 when they protrude from the drive device 10a.
  • the rods 44 are axially displaceable.
  • the rotors 36a rotate about their own axis, which corresponds to a rod 44, the rods 44 are axially displaced.
  • a tensile or compressive force can be removed via the plate 46.
  • the drive device 10a functions as an actuator that can be used like a spindle drive.
  • the lengths of the stator 12a, the element 28a and the rotors 36 must be matched to one another for the required stroke.
  • the usable stroke corresponds approximately to the length of the rotors 36a minus the length of the housing of the drive device 10a.
  • FIG. 4 shows a drive device 10b which is similar to the drive device 10a. It differs in that the element 28b is axially movable and in that the rotors 36b are axially fixed.
  • the rotors are advantageously fixed axially via ball bearings 48, although another bearing can also be suitable. As a result, the rotors 36b can rotate about their own axis and can also run along the toothing 26b of the stator 12b.
  • the element 28b protrudes from the drive device 10b.
  • the usable stroke corresponds approximately to the length of the element 28b minus the length of the housing of the drive device 10b.
  • the element 28b serves to support the rotors 36b and to transmit a tensile or compressive force to the outside. For this transmission, it is advantageous or to form both ends of the element 28b similar to the shaft of a spindle drive known per se.
  • the drive device 10c shown in FIG. 5 corresponds to an external rotor.
  • the stator 12c has one
  • Outside diameter 50 formed.
  • four rotors 36 are arranged symmetrically, which form two diametrically opposite rotor pairs 36 ', 36' '.
  • the rotors 36 are connected to each other at the end faces 38 via a ring 40, which as an element for
  • Bearing of the rotors 36 is used and from which a torque can also be taken.
  • a drive device 10d can be seen from FIGS. 6 and 7, the stator 12 of the drive device 10 being used. Only one rotor 52 is provided, which has an external toothing 53 which is intended for engagement in the toothing 26 of the stator 12.
  • An element that serves to support the rotor 52 and to transmit a torque is designed as a cranked shaft 54.
  • the shaft 54 is rotatably arranged in a central longitudinal bore 56 of the rotor 52.
  • the shaft 54 has two parallel webs 58 which are arranged perpendicular to the shaft 54 and extend to the stator axis 14.
  • Shaft sections 60 are formed on the webs 58 and protrude in the longitudinal direction from the drive device 12c. They are rotatably supported by bearings 62 of the drive device 12d.
  • the webs 58 can be screwed to the shaft 54 and the shaft sections 60, for example.
  • This Drive device 10d represents a particularly simple construction.
  • the invention is not only limited to the drive device described and its modifications. Instead of a positive transmission of the torques by the toothings 26, 37a, 53 of the drive devices 10, 10c and 10d, it is also possible to provide a frictional transmission, for example by friction wheels.
  • the essence of the invention is that an electric motor and a planetary gear train are combined to form a drive device.
  • the sun gear is to be designed as a stator of an electric motor, in particular a reluctance motor
  • the at least one planet gear is to be designed as a rotor, at least one element also having to be provided which serves at least to support the at least one rotor. It is also conceivable to provide additional windings for the rotor or rotors, but this increases the effort involved in electrically connecting them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Linear Motors (AREA)

Abstract

L'invention concerne un dispositif d'entraînement (10, 10a, 10b, 10c, 10d) comportant une roue solaire se présentant sous forme de stator (12, 12a, 12b, 12c). Plusieurs rainures (18, 18c) sont formées dans le sens longitudinal. Ces rainures forment des pôles (20) opposés appariés, sous forme d'entretoises, autour desquels sont disposés des enroulements (22) pouvant être parcourus par un courant. Ce dispositif d'entraînement (10, 10a, 10b, 10c, 10d) comporte au moins une roue solaire sous forme de rotor (36, 36a, 36b) et au moins un élément (28, 28a, 28b, 40, 54) servant au moins à monter le rotor (au moins au nombre de un) (36, 36a, 36b) de manière rotative. L'invention se caractérise en ce qu'un moteur électrique et un engrenage planétaire sont combinés pour former un dispositif d'entraînement (10, 10a, 10b, 10c, 10d). Selon l'invention, cette combinaison de deux éléments permet de réduire l'encombrement, de poids et les coûts.
PCT/DE1999/002914 1998-10-06 1999-09-14 Dispositif d'entrainement Ceased WO2000021183A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000575205A JP2002528025A (ja) 1998-10-06 1999-09-14 駆動装置
EP99955694A EP1119895A1 (fr) 1998-10-06 1999-09-14 Dispositif d'entrainement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19845914.9 1998-10-06
DE1998145914 DE19845914C2 (de) 1998-10-06 1998-10-06 Antriebsvorrichtung

Publications (1)

Publication Number Publication Date
WO2000021183A1 true WO2000021183A1 (fr) 2000-04-13

Family

ID=7883522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/002914 Ceased WO2000021183A1 (fr) 1998-10-06 1999-09-14 Dispositif d'entrainement

Country Status (5)

Country Link
EP (1) EP1119895A1 (fr)
JP (1) JP2002528025A (fr)
CZ (1) CZ20011212A3 (fr)
DE (1) DE19845914C2 (fr)
WO (1) WO2000021183A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002099954A1 (fr) * 2001-05-09 2002-12-12 Abb Ab Generateur d'eolienne
WO2003044927A1 (fr) * 2001-05-09 2003-05-30 Abb Ab Machine electrique
GB2453027A (en) * 2007-09-11 2009-03-25 Borealis Tech Ltd Motor using magnetic normal force
US7919891B2 (en) * 2007-08-09 2011-04-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Directed flux motor
GB2449206B (en) * 2006-03-03 2011-10-05 Borealis Tech Ltd Motor using magnetic normal force
US8084912B2 (en) 2006-02-15 2011-12-27 Venera Laboratory Co., Ltd. Planetary geared motor and dynamo
CN109378933A (zh) * 2018-11-28 2019-02-22 华南智能机器人创新研究院 一种行星齿轮式无刷直流电机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021368B4 (de) * 2000-05-02 2006-12-14 Deutsches Zentrum für Luft- und Raumfahrt e.V. Mechatronischer Aktuator
US7411322B2 (en) 2005-12-06 2008-08-12 Lucent Technologies Inc. Micromachined reluctance motor
DE102006011246A1 (de) * 2006-03-10 2007-09-13 Gangolf Jobb Elektromechanische Drehmaschine
JP5123333B2 (ja) * 2010-01-26 2013-01-23 株式会社 資生堂 油中水型乳化日焼け止め化粧料
AT514263B1 (de) * 2013-04-17 2016-06-15 Manfred Dr Schrödl Elektrische Maschine
CN107769411B (zh) * 2017-10-10 2019-12-13 抚顺三平科技开发有限公司 一种高功率密度的磁阻电机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331974A (en) * 1964-11-04 1967-07-18 United Shoe Machinery Corp Stepping motor with a flexible rotor
GB2094066A (en) * 1981-01-08 1982-09-08 Ask Jonas Waldemar Electromagnetic machines
WO1986005634A1 (fr) * 1985-03-15 1986-09-25 Teijin Seiki Co., Ltd. Moteur a engrenages
JPS6223361A (ja) * 1985-07-22 1987-01-31 Takashi Hosokawa 電動アクチエ−タ
JPS62171456A (ja) * 1986-01-21 1987-07-28 Satoshi Kiyono 転動型ステツピングモ−タ
JPH02164265A (ja) * 1988-09-13 1990-06-25 Toshiba Corp 可変空隙形モータ
US5289065A (en) * 1993-04-05 1994-02-22 Ford Motor Company Zero air gap orbiting gear stepper motor
JPH077913A (ja) * 1993-06-18 1995-01-10 Teruo Kawai 動力発生装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5252870A (en) * 1991-03-01 1993-10-12 Jacobsen Stephen C Magnetic eccentric motion motor
DE4423902A1 (de) * 1994-07-09 1996-04-11 Fibro Gmbh Konzentrischer Getriebemotor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331974A (en) * 1964-11-04 1967-07-18 United Shoe Machinery Corp Stepping motor with a flexible rotor
GB2094066A (en) * 1981-01-08 1982-09-08 Ask Jonas Waldemar Electromagnetic machines
WO1986005634A1 (fr) * 1985-03-15 1986-09-25 Teijin Seiki Co., Ltd. Moteur a engrenages
JPS6223361A (ja) * 1985-07-22 1987-01-31 Takashi Hosokawa 電動アクチエ−タ
JPS62171456A (ja) * 1986-01-21 1987-07-28 Satoshi Kiyono 転動型ステツピングモ−タ
JPH02164265A (ja) * 1988-09-13 1990-06-25 Toshiba Corp 可変空隙形モータ
US5289065A (en) * 1993-04-05 1994-02-22 Ford Motor Company Zero air gap orbiting gear stepper motor
JPH077913A (ja) * 1993-06-18 1995-01-10 Teruo Kawai 動力発生装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 198 (E - 519) 25 June 1987 (1987-06-25) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 013 (E - 573) 14 January 1988 (1988-01-14) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 425 (E - 0977) 13 September 1990 (1990-09-13) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002099954A1 (fr) * 2001-05-09 2002-12-12 Abb Ab Generateur d'eolienne
WO2003044927A1 (fr) * 2001-05-09 2003-05-30 Abb Ab Machine electrique
US8084912B2 (en) 2006-02-15 2011-12-27 Venera Laboratory Co., Ltd. Planetary geared motor and dynamo
GB2449206B (en) * 2006-03-03 2011-10-05 Borealis Tech Ltd Motor using magnetic normal force
US7919891B2 (en) * 2007-08-09 2011-04-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Directed flux motor
GB2453027A (en) * 2007-09-11 2009-03-25 Borealis Tech Ltd Motor using magnetic normal force
CN109378933A (zh) * 2018-11-28 2019-02-22 华南智能机器人创新研究院 一种行星齿轮式无刷直流电机

Also Published As

Publication number Publication date
DE19845914A1 (de) 2000-04-13
JP2002528025A (ja) 2002-08-27
EP1119895A1 (fr) 2001-08-01
DE19845914C2 (de) 2000-08-24
CZ20011212A3 (cs) 2001-08-15

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