EP2066923A1 - Antriebseinheit - Google Patents
AntriebseinheitInfo
- Publication number
- EP2066923A1 EP2066923A1 EP07803499A EP07803499A EP2066923A1 EP 2066923 A1 EP2066923 A1 EP 2066923A1 EP 07803499 A EP07803499 A EP 07803499A EP 07803499 A EP07803499 A EP 07803499A EP 2066923 A1 EP2066923 A1 EP 2066923A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive unit
- spindle nut
- shaft rotor
- hollow shaft
- 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.)
- Withdrawn
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
-
- 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
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
-
- 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
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2075—Coaxial drive motors
- F16H2025/2078—Coaxial drive motors the rotor being integrated with the nut or screw body
Definitions
- the invention relates to a drive unit with a suitable for direct drive of a spindle nut electric motor which comprises a hollow shaft rotor and a stator, wherein the hollow shaft rotor and the stator are arranged in a common housing and also the spindle nut can be arranged in this housing.
- a drive unit according to the preamble of claim 1 is known for example from DE 41 04 759 C2. This is a linear actuation device, which in particular should be suitable for the positioning of welding guns on automated assembly lines.
- This arrival device comprises a threaded spindle and a spindle nut, which is driven by two torque motors.
- the torque motors have a common hollow shaft, which is connected against rotation with the spindle nut. To prevent rotation a feather key is provided.
- a drive device comprising a spindle nut, namely a linear actuator, is known from EP 1 089 019 B1. Also in this case, the spindle nut is rotatably connected to a hollow shaft rotor via a feather key.
- a drive unit with an electric motor is known, which comprises a hollow shaft rotor, wherein the stator is designed as a spindle nut of a screw drive.
- the invention has for its object to provide an electric direct drive for a cooperating with a threaded spindle nut suitable drive unit, which comprises a hollow shaft rotor and is characterized by a special easy mounting and dismounting.
- a drive unit with the features of claim 1.
- Essential components of the drive unit are a hollow shaft rotor and a stator as parts of an electric motor, which is adapted to directly drive a co-operating with a threaded spindle nut.
- the spindle nut which does not necessarily belong to the components of the drive unit, can be arranged completely in a common housing together with the rotor and the stator of the electric motor, in particular torque motor.
- a screw connection is provided, wherein a plurality of screws are arranged parallel to the axis of rotation of the electric motor and, penetrating a respective bore in the spindle nut, directly into the hollow shaft rotor can be screwed.
- the screw allows a backlash-free, reversible attachment of the hollow shaft rotor to the spindle nut.
- the spindle nut has a hollow cylindrical section, which preferably adjoins a flange, which is radially inside the hollow shaft rotor is arranged and whose length corresponds to at least half the length of the housing.
- the bores are arranged in an advantageous embodiment in the flange of the spindle nut, preferably on an imaginary circular line.
- the flange of the spindle nut preferably has four, six or eight holes.
- the hollow shaft rotor of the electric motor provided for the direct drive of the spindle nut is mounted in the housing by means of a roller bearing.
- the rolling bearing is preferably constructed as a two- or more-row bearing or in the form of at least two angular contact ball bearings.
- the hollow shaft rotor is mounted without play in the housing by means of rolling bearings.
- a particularly compact design of the drive unit is given by the fact that the spindle nut does not protrude from the housing of the electric motor.
- the outer surface of the spindle nut is aligned with a front side of the housing.
- an angle measuring device is additionally arranged in the common housing of the electric motor and the spindle nut, which allows an absolute or incremental measurement of the angular position of the hollow shaft rotor relative to the housing.
- the single FIGURE shows a sectional view of a drive unit generally designated by the reference numeral 1.
- the drive unit 1 comprises a spindle nut 2 and an electric motor 3, namely a torque motor designed as a permanent magnet synchronous motor, in a common housing 4.
- the spindle nut 2 directly driven by the electric motor 3 cooperates with a threaded spindle 5.
- the measured in the axial direction of the electric motor 3 length of the housing 4 is denoted by L, the diameter D.
- the spindle nut 2 does not project beyond the outer contours of the housing 4, wherein a flange 6 of the spindle nut 2 terminates flush with an end face 7 of the housing 4.
- the flange 6 of the spindle nut 2 is adjoined by a hollow-cylindrical section 8 whose length L s is more than 75% of the length L of the housing 4.
- the hollow cylindrical portion 8 is surrounded by a hollow shaft rotor 9 of the electric motor 3.
- a rotationally fixed connection between the hollow shaft rotor 9 and the spindle nut 2 is ensured by a screw 10, wherein a plurality of screws 1 1 each penetrate a bore 12 in the flange 6 of the spindle nut 2 and are screwed into a threaded bore 13 in the hollow shaft rotor 9. All holes 12 and threaded holes 13 are equidistant from the axis of rotation of the hollow shaft rotor 9, that is, to the axis of symmetry of the threaded spindle 5, respectively.
- the screws 1 1 do not protrude beyond the outer contour of the housing 4. Due to the arrangement of the screw 10 on the end face 7 of the housing 4, a simple screwing or loosening the screws 1 1 is possible at any time.
- the structure of the drive unit 1 has the advantage that a spindle nut 2 with a uniform hole pattern is suitable for connection to different electric motors 3, these differing not with respect to the diameter D, but only with respect to the length L. So- With a simple adaptation of the drive unit 1 to different power requirements is possible.
- the hollow shaft rotor 9 and therefore also the spindle nut 2 rigidly connected thereto are mounted in the electric motor 3 by means of a bearing 14.
- This is designed as a rolling bearing whose inner ring 15 is rotatably connected to the hollow shaft rotor 9 and the outer ring 16 with the housing 4 and stator 17 of the electric motor 3.
- Within the housing 4 is further an angle measuring device 18, which indicates the angular position of the hollow shaft rotor 9 relative to the housing 4 and the stator 17 or the change in the angular position of the hollow shaft rotor 9.
- a measuring system can be provided which directly detects the linear position of the housing 4 relative to the threaded spindle 5.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610043611 DE102006043611A1 (de) | 2006-09-16 | 2006-09-16 | Antriebseinheit |
PCT/EP2007/059724 WO2008031891A1 (de) | 2006-09-16 | 2007-09-14 | Antriebseinheit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2066923A1 true EP2066923A1 (de) | 2009-06-10 |
Family
ID=38859747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07803499A Withdrawn EP2066923A1 (de) | 2006-09-16 | 2007-09-14 | Antriebseinheit |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2066923A1 (de) |
CN (1) | CN101553671B (de) |
DE (1) | DE102006043611A1 (de) |
WO (1) | WO2008031891A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102837008B (zh) * | 2012-07-27 | 2014-09-24 | 华中科技大学 | 一种方便拆卸和维护的内置式电主轴 |
US9944377B2 (en) * | 2014-07-08 | 2018-04-17 | Marine Canada Acquisition Inc. | Electric actuator for a marine steering system |
US9906094B2 (en) * | 2015-03-20 | 2018-02-27 | American Axle & Manufacturing, Inc. | Direct drive actuator with switched reluctance motor |
JP6849653B2 (ja) * | 2016-02-25 | 2021-03-24 | 株式会社ダイヘン | 駆動装置 |
DE102021104888A1 (de) | 2021-03-01 | 2022-09-15 | Stabilus Gmbh | Linearantrieb zum Öffnen und Schließen einer Kraftfahrzeugtür |
DE102021104891A1 (de) | 2021-03-01 | 2022-09-01 | Stabilus Gmbh | Antriebssystem zum Öffnen und Schließen einer Kraftfahrzeugtür, Kraftfahrzeugtür mit dem Antriebssystem |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE628339A (de) * | 1962-02-14 | |||
JPH02231939A (ja) * | 1989-03-06 | 1990-09-13 | Fanuc Ltd | 貫通形モータ |
US5099161A (en) * | 1990-10-16 | 1992-03-24 | Savair Inc. | Compact electric linear actuator with tubular rotor |
CN1137957A (zh) * | 1995-06-12 | 1996-12-18 | 许勒压力机两合公司 | 成型机器的送料装置 |
ATE263323T1 (de) * | 1999-09-30 | 2004-04-15 | Danaher Motion Gmbh | Linearstellglied |
DE10158870A1 (de) * | 2001-11-14 | 2003-05-22 | Bosch Rexroth Ag | Redundante elektrische Antriebsvorrichtung, insbesondere zum Antrieb eines Ruders an einem Schiff |
DE10230876C5 (de) * | 2002-07-09 | 2009-09-10 | Siemens Ag | Antriebsvorrichtung für eine Kunststoffverarbeitungsmaschine |
DE10254081B3 (de) * | 2002-07-31 | 2004-04-22 | Sew-Eurodrive Gmbh & Co Kg | Spindelmotor |
DE10335694A1 (de) * | 2003-08-05 | 2005-03-17 | Zander, Georg, Dr.-Ing. | Antriebseinheit |
DE202004008439U1 (de) * | 2004-05-24 | 2004-09-23 | Canonica, Hans-Peter | Elektromotorischer Verstellantrieb |
US7389709B2 (en) * | 2004-06-30 | 2008-06-24 | Moog Inc. | Reverse transfer system ball-screw, and electro-mechanical actuator employing same |
-
2006
- 2006-09-16 DE DE200610043611 patent/DE102006043611A1/de not_active Withdrawn
-
2007
- 2007-09-14 CN CN2007800341998A patent/CN101553671B/zh not_active Expired - Fee Related
- 2007-09-14 WO PCT/EP2007/059724 patent/WO2008031891A1/de active Application Filing
- 2007-09-14 EP EP07803499A patent/EP2066923A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2008031891A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008031891A1 (de) | 2008-03-20 |
CN101553671B (zh) | 2012-05-30 |
CN101553671A (zh) | 2009-10-07 |
DE102006043611A1 (de) | 2008-03-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3350464B1 (de) | Planetengetriebe für eine windkraftanlage mit gleitgelagerten planetenrädern | |
EP2218908B1 (de) | Windenergieanlage mit einer Arretierung eines Blattes | |
EP2561145B1 (de) | Drehvorrichtung für ein anbaugerät an einer arbeitsmaschine | |
EP2066923A1 (de) | Antriebseinheit | |
DE102016209161B4 (de) | Stelleinrichtung und Verwendung der Stelleinrichtung | |
DE102015204074B4 (de) | Linearer Stellantrieb und Verfahren zur Montage eines Stellantriebs | |
EP3323717B1 (de) | Rotormast | |
EP2096737B1 (de) | Tauchmotor | |
DE102008051613B4 (de) | Fräskopf | |
DE102015204071B4 (de) | Linearer Stellantrieb und Verfahren zur Montage eines Stellantriebs | |
DE102005054046B4 (de) | Gelenkschrauber | |
WO2008034417A2 (de) | Lagereinheit zur axialen wellenpositionierung | |
EP3819136B1 (de) | Radlagereinheit für ein kraftfahrzeug sowie verfahren zum herstellen einer radlagereinheit | |
EP1741664B1 (de) | Stelleinrichtung zum Positionieren einer Last | |
DE102011085256A1 (de) | Walzvorrichtung | |
DE102005056389A1 (de) | Lagerung | |
EP2424083B1 (de) | Elektromotor und Verfahren zu dessen Herstellung | |
WO2011064060A1 (de) | WÄLZLAGER MIT EINER MAßVERKÖRPERUNG | |
EP1988311B1 (de) | Lagereinheit und damit ausgestattete Lineareinheit | |
EP1053103B1 (de) | Antrieb für ein rotierendes bauteil einer druckmaschine | |
EP1701833A1 (de) | Direktangetriebener extruder mit adapter | |
WO2020109144A1 (de) | Antriebseinrichtung für ein kraftfahrzeug mit einer antriebseinheit | |
EP3431749B1 (de) | Extender zum befestigen eines rotorblatts an einem rotornabengehäuse einer windenergieanlage, verfahren zur herstellung eines extenders und verfahren zur montage eines extenders | |
DE102005059148B4 (de) | Antriebsmodul einer Werkzeugmaschine | |
DE202008001723U1 (de) | Elektrische Direktantriebsvorrichtung insbesondere für einen Drehtisch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090416 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PFEIFFER, MARKO |
|
17Q | First examination report despatched |
Effective date: 20100726 |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20170103 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |