DE2406201A1 - Electric actuator with rotating threaded driving rod - having end plates and bearings of synthetic low friction material - Google Patents
Electric actuator with rotating threaded driving rod - having end plates and bearings of synthetic low friction materialInfo
- Publication number
- DE2406201A1 DE2406201A1 DE19742406201 DE2406201A DE2406201A1 DE 2406201 A1 DE2406201 A1 DE 2406201A1 DE 19742406201 DE19742406201 DE 19742406201 DE 2406201 A DE2406201 A DE 2406201A DE 2406201 A1 DE2406201 A1 DE 2406201A1
- Authority
- DE
- Germany
- Prior art keywords
- end shields
- electric actuator
- threaded spindle
- rotor
- end plates
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2075—Coaxial drive motors
-
- 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
-
- 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
- F16H25/2015—Means specially adapted for stopping actuators in the end position; Position sensing means
Abstract
Description
Elektrischer Stellantrieb Die Erfindung betrifft einen elektrischen Stellantrieb, bestehend aus einem Elektromotor mit einem in einem Gehäuse angeordneten Stator und einem in zwei Lagerschilden gelagerten Rotor, einem mechanischen Schraubtrieb mit einer konzentrisch im Rotor des Elektromotors angeordneten Gewindespindel und einer mit dem Rotor verbundenen Mutter mit Innengewinde.Electric actuator The invention relates to an electric actuator Actuator, consisting of an electric motor with an arranged in a housing Stator and a rotor mounted in two end shields, a mechanical screw drive with a threaded spindle arranged concentrically in the rotor of the electric motor and an internally threaded nut connected to the rotor.
Derartige Stellantriebe werden vorteilhaft zur Betätigung von Lüftungsklappen, Fenstern, Krankenbetten, Ventilantrieben usw.Such actuators are advantageous for operating ventilation flaps, Windows, hospital beds, valve drives, etc.
eingesetzt. Einer weiten Verbreitung stehen jedoch die verhältnismäßig hohen Anschaffungskosten entgegen.used. However, they are relatively widespread against high acquisition costs.
Aufgabe der Erfindung ist es deshalb, eine Senkung der Herstellungskosten durch Vereinfachung der Konstruktion bekannter Stellantriebe zu erzielen. Diese Aufgabe wird dadurch gelöst, daß die beiden Lagerschilde aus Kunststoff mit guten Gleiteigenschaften bestehen, daß in die Lagerschilde Gleit-Führungen für die Gewinde spindel direkt eingearbeitet sind und daß an die Lagerschilde rohrförmige Schwingungsdämpfer geringer Wandstärke angeformt sind, die einen gegenüber dem Außendurchmesser der Gewindespindel etwas kleineren Innendurchmesser aufweisen.The object of the invention is therefore to reduce the manufacturing costs to achieve by simplifying the construction of known actuators. These The object is achieved in that the two plastic bearing plates with good There are sliding properties that slide guides for the thread in the end shields spindle are incorporated directly and that tubular vibration damper to the end shields small wall thickness are formed, the one opposite the outer diameter of the Threaded spindle have a slightly smaller inner diameter.
Durch die Zusammenfassung von Bauteilen mit verschiedenartigen Funktionen in einem einzigen Konstruktionselement, das überdies durch bekannte Verfahren preisgünstig hergestellt werden kann, ist eine bedeutende Senkung der Fertigungskosten möglich. Zusätzlich ergibt sich durch die Verwendung von Kunststoff mit guten Gleiteigenschaften durch Wegfall der Schmierung der Vorteil des verringerten Herstellungsaufwandes für Abdichtung und Kapselung der Geräte, der Wartungsfreiheit sowie einer wirkungsvollen Dämpfung von Schwingungen und damit Minderung des Geräusches im Betrieb.By combining components with different functions in a single construction element, which moreover by acquaintances Process can be manufactured inexpensively is a significant reduction in the Manufacturing costs possible. In addition, it results from the use of plastic with good sliding properties due to the elimination of lubrication the advantage of reduced Manufacturing costs for sealing and encapsulating the devices, the freedom from maintenance as well as effective damping of vibrations and thus a reduction in noise operational.
Eine weitere Senkung der Herstellungskosten kann dadurch erzielt werden, daß die Lagerschilde direkt als Isolierkörper für die elektrischen Anschlüsse des Stellantriebes dienen.A further reduction in manufacturing costs can be achieved by that the end shields directly as an insulating body for the electrical connections of the Serve actuator.
Bei elektrischen Stellantrieben mit Endschaltern besteht eine weitere vorteilhafte Ausgestaltung der Erfindung darin, daß die Endschalter in den Lagerschilden mit ihrer Betätigungsachse senkrecht zur Spindelachse angeordnet sind, und daß für jeden Endschalter in einer radialen Bohrung der Lagerschilde ein Stift zu seiner Betätigung gleitend geführt ist, der von auf der Gewinde spindel stellbar angeordneten Nocken bewegt wird.In the case of electric actuators with limit switches, there is an additional one advantageous embodiment of the invention is that the limit switches in the end shields are arranged with their operating axis perpendicular to the spindle axis, and that for each limit switch in a radial bore of the end shields a pin to his Actuation is slidably guided by the adjustable spindle on the threaded Cam is moved.
Ein elektrischer Stellantrieb mit den Merkmalen der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An electric actuator with the features of the invention is shown in the drawing and is described in more detail below.
In einem Gehäuse 11 ist ein Stator 12 eines Kurzschlußläufer-Motors angeordnet. Ein Rotor 1) des Stellantriebes ist mit einer aus Kunststoff bestehenden Mutter 14 über ein Rohr 15 fest verbunden und in zwei Kugellagern 16 drehbar innerhalb des Stators in zwei Lagerschilden 17 gelagert. Eine Gewindespindel 18, die auf nicht dargestellte Weise gegen Verdrehen gesichert ist, wird bei sich drehendem Rotor 1) und Mutter 14 je nach Drehrichtung in der einen oder anderen Richtung axial verschoben.In a housing 11 is a stator 12 of a squirrel cage motor arranged. A rotor 1) of the actuator is connected to one made of plastic Nut 14 firmly connected via a tube 15 and rotatable in two ball bearings 16 within of Stator mounted in two end shields 17. A threaded spindle 18 that is not on is secured against rotation when the rotor is rotating 1) and nut 14 shifted axially in one direction or the other depending on the direction of rotation.
Erfindungsgemäß bestehen die beiden Lagerschilde aus Kunststoff mit guten Gleiteigenschaften, in denen Gleitführungen 19 direkt eingearbeitet sind, und an die rohrförmige Schwingungsdämpfer 20 mit geringer Wandstärke angeformt sind, die einen gegenüber dem Außendurchmesser der Gewindespindel .18 etwas kleineren Innendurchmesser aufweisen. Bei Durchtritt der Gewindespindel wird dieser etwas kleinere Innendurchmesser des Schwingungsdämpfers auf den Durchmesser der Gewindespiridel aufgeweitet und der Schwingungsdämpfer legt sich elastischdämpfend um die Gewindespindel.According to the invention, the two bearing plates are made of plastic with good sliding properties, in which sliding guides 19 are directly incorporated, and are molded onto the tubular vibration damper 20 with a small wall thickness, the one slightly smaller compared to the outer diameter of the threaded spindle .18 Have inner diameter. When the threaded spindle passes through, it becomes somewhat smaller inner diameter of the vibration damper to the diameter of the threaded spiral widened and the vibration damper is elastically dampened around the threaded spindle.
In den Lagerschilden17 sind elektrische Anschlüsse 21 für den Stellantrieb versenkt in Nuten 22 angeordnet und gewährleisten damit ein hohes Maß an elektrischer Sicherheit. Endschalter 23 sind ebenfalls an den Lagerschilden 17 angebracht und werden von auf der Gewinde spindel stellbar angeordneten Nocken 24 über in radialen Bohrungen geführte Stifte 25 in den Endlagen der Gewindespindel 18 betätigt.In the end shields 17 are electrical connections 21 for the actuator sunk in grooves 22 and thus ensure a high level of electrical Safety. Limit switches 23 are also attached to the end shields 17 and are arranged on the threaded spindle adjustable cam 24 via in radial Bores guided pins 25 in the end positions of the threaded spindle 18 actuated.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742406201 DE2406201A1 (en) | 1974-02-09 | 1974-02-09 | Electric actuator with rotating threaded driving rod - having end plates and bearings of synthetic low friction material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742406201 DE2406201A1 (en) | 1974-02-09 | 1974-02-09 | Electric actuator with rotating threaded driving rod - having end plates and bearings of synthetic low friction material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2406201A1 true DE2406201A1 (en) | 1975-08-21 |
Family
ID=5906986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19742406201 Pending DE2406201A1 (en) | 1974-02-09 | 1974-02-09 | Electric actuator with rotating threaded driving rod - having end plates and bearings of synthetic low friction material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2406201A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650953A1 (en) * | 1975-11-10 | 1977-05-12 | Magnetic Elektromotoren Ag | Single phase capacitor motor - drives thrust and pull mechanisms in furniture and has radial antifriction bearings with intermediate mechanism |
DE3306323A1 (en) * | 1982-02-24 | 1983-09-01 | IMC Magnetics Corp., 11753 Jericho, N.Y. | STEPPER MOTOR |
FR2549926A1 (en) * | 1983-07-26 | 1985-02-01 | Marchal Equip Auto | Electrically driven vehicle door window |
DE4039411A1 (en) * | 1990-12-10 | 1992-06-11 | Magnet Motor Gmbh | LIFT DRIVE FOR ELECTRICALLY OPERATING A WINDOW WINDOW OR A SUNROOF OF A MOTOR VEHICLE |
DE19710470A1 (en) * | 1996-03-13 | 1997-09-18 | Unisia Jecs Corp | Drive worm unit and electric motor using the unit |
WO2009146738A1 (en) * | 2008-06-03 | 2009-12-10 | Ab Skf | Linear actuator |
WO2010117216A2 (en) | 2009-04-08 | 2010-10-14 | Lg Innotek Co., Ltd. | Linear stepping motor |
WO2015023398A3 (en) * | 2013-08-16 | 2015-04-23 | Thomson Industries, Inc. | Injection molded blank for lead screw, rotor-blank assembly and method for producing same |
-
1974
- 1974-02-09 DE DE19742406201 patent/DE2406201A1/en active Pending
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650953A1 (en) * | 1975-11-10 | 1977-05-12 | Magnetic Elektromotoren Ag | Single phase capacitor motor - drives thrust and pull mechanisms in furniture and has radial antifriction bearings with intermediate mechanism |
DE3306323A1 (en) * | 1982-02-24 | 1983-09-01 | IMC Magnetics Corp., 11753 Jericho, N.Y. | STEPPER MOTOR |
FR2549926A1 (en) * | 1983-07-26 | 1985-02-01 | Marchal Equip Auto | Electrically driven vehicle door window |
DE4039411A1 (en) * | 1990-12-10 | 1992-06-11 | Magnet Motor Gmbh | LIFT DRIVE FOR ELECTRICALLY OPERATING A WINDOW WINDOW OR A SUNROOF OF A MOTOR VEHICLE |
DE19710470A1 (en) * | 1996-03-13 | 1997-09-18 | Unisia Jecs Corp | Drive worm unit and electric motor using the unit |
US5912520A (en) * | 1996-03-13 | 1999-06-15 | Unisia Jecs Corporation | Feed-screw unit and electric motor using same |
WO2009146738A1 (en) * | 2008-06-03 | 2009-12-10 | Ab Skf | Linear actuator |
CN102047005A (en) * | 2008-06-03 | 2011-05-04 | Skf公司 | Linear actuator |
US8508168B2 (en) | 2008-06-03 | 2013-08-13 | Aktiebolaget Skf | Linear actuator |
WO2010117216A2 (en) | 2009-04-08 | 2010-10-14 | Lg Innotek Co., Ltd. | Linear stepping motor |
EP2417696A4 (en) * | 2009-04-08 | 2018-01-10 | LG Innotek Co., Ltd. | Linear stepping motor |
WO2015023398A3 (en) * | 2013-08-16 | 2015-04-23 | Thomson Industries, Inc. | Injection molded blank for lead screw, rotor-blank assembly and method for producing same |
CN105556170A (en) * | 2013-08-16 | 2016-05-04 | 托马森工业(有限)公司 | Injection molded blank for lead screw, rotor-blank assembly and method for producing same |
US9735646B2 (en) | 2013-08-16 | 2017-08-15 | Thomson Industries, Inc. | Injection molded blank for lead screw, rotor-blank assembly and method for producing same |
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