EP3109390B2 - Drive unit for an automatic revolving door - Google Patents

Drive unit for an automatic revolving door Download PDF

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Publication number
EP3109390B2
EP3109390B2 EP15003685.3A EP15003685A EP3109390B2 EP 3109390 B2 EP3109390 B2 EP 3109390B2 EP 15003685 A EP15003685 A EP 15003685A EP 3109390 B2 EP3109390 B2 EP 3109390B2
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EP
European Patent Office
Prior art keywords
drive unit
bearing
designed
revolving door
middle column
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.)
Active
Application number
EP15003685.3A
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German (de)
French (fr)
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EP3109390A1 (en
EP3109390B1 (en
Inventor
Christian Schaal
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Landert Group AG
Original Assignee
Landert Group AG
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/608—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for revolving wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/628—Bearings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/628—Bearings
    • E05Y2201/632—Sleeves
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable
    • E05Y2600/30—Adjustment motion
    • E05Y2600/31—Linear motion
    • E05Y2600/314—Vertical motion
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/43—Physical or chemical protection against wear

Definitions

  • the invention relates to a drive unit for an automatic revolving door according to the preamble of claim 1 and claim 2.
  • Centrally driven automatic revolving doors are usually constructed in such a way that the output shaft of the drive unit drives the part of the revolving door rotating around the central axis via a transmission element such as a chain, toothed belt or similar.
  • a transmission element such as a chain, toothed belt or similar.
  • the output shaft of the drive unit and the part of the revolving door rotating about the central axis are mounted separately.
  • the pamphlet DE 93 19 807 U1 describes such a centrally driven automatic revolving door of the usual design, in which the drive unit drives the part of the revolving door rotating about the central axis via a transmission element.
  • the drive train consists of an electric motor, gearbox, gearbox output wheel, transmission element and carousel drive wheel, with the gearbox in turn being made up of various individual parts. Because of the gear reduction, the electric motor rotates at a relatively high speed, which causes noise. Noise is also caused by the gear itself.
  • the height of the drive unit is made up of the height of the motor/gear unit and the width of the gear output wheel.
  • the central column With a length of e.g. 280 cm, the central column has an axial length expansion range of +/- 5 mm. Without compensation for the play in length expansion, there is a risk of mechanical stresses in the system and a resulting impermissible axial load on the pivot bearing, which leads to premature wear.
  • the DE 10 2013 000 421 A1 provides two deep groove ball bearings arranged at a distance from each other and aligned perpendicular to each other to compensate for the expansion play. This does not compensate for the length expansion play, but only increases the load capacity of the bearing in the axial and radial directions.
  • the DE 197 34 398 B4 uses a radially outward slewing ring on which the rollers of the center column roll.
  • this has the disadvantage of a complex construction with a large diameter, and if the center column is extended in length, the slewing ring only insufficiently supports the ceiling-side bearing of the center column.
  • the invention is therefore based on the object of developing a drive unit for an automatic revolving door of the type mentioned at the outset in such a way that an axial length expansion play of the center column can be accommodated favorably by the bearing of the center column near the ceiling with little construction effort and little wear.
  • the invention is characterized by the technical teaching of claims 1 and 2 in order to solve the task at hand.
  • a feature of the invention is that the ceiling-side bearing of the center column is designed to be displaceable in the axial direction or that the center column is designed to be displaceable with respect to the bearing near the ceiling.
  • the bearing point in the drive unit is designed in such a way that the rotating part of the revolving door can be displaced in relation to the fixed part of the drive unit in the direction of the central axis, thus ensuring that this bearing point acts as a movable bearing for the bearing of the part of the revolving door can serve.
  • the bearing point below the rotating part of the revolving door which also bears the weight of the rotating part of the revolving door, can be designed as a fixed bearing for the storage of the rotating part of the revolving door. This ensures that the system is not overdetermined. This is important so that the system continues to function with little wear and tear even in the event of deformations, which can be thermally induced, for example.
  • the ceiling-side bearing of the center column consists of just a single deep groove ball bearing, which absorbs the forces acting in the radial direction and whose inner bearing ring can be displaced on a vertically aligned extension of the rotating part of the drive unit is stored.
  • roller bearing instead of a deep groove ball bearing another roller bearing is used, such as. B. a cylindrical roller bearing, barrel roller bearing or spherical roller bearing. All of these roller bearings can be designed in one or more rows. Furthermore, a double-row angular contact ball bearing could also be used.
  • the inner bearing ring is not immovably connected to the vertical extension of the rotating part of the drive unit, but is axially displaceable on it.
  • a reduction in the overall height of the drive unit also results from the following additional feature: Due to the fact that the electric motor in the drive unit is designed as a high-pole, permanent magnet-excited synchronous motor with concentrated windings, there is the advantage of significantly smaller winding overhangs compared to conventional distributed windings. This ultimately results in a smaller height of the drive unit and less heating.
  • concentrated windings is understood to mean that on the stator side there are slot teeth which are distributed uniformly around the circumference and are arranged at a mutual distance from one another, each carrying a single stator winding (concentrated on the slot tooth).
  • the position sensor for commutation of the electric motor in the drive unit is designed as a sine/cosine sensor with a number of periods per revolution corresponding to the number of pole pairs of the electric motor, the commutation of the electric motor can be easily accomplished.
  • the position encoder also has a sine/cosine track with one period per revolution, the position of the part of the revolving door rotating about the central axis is also known at all times.
  • a braking device which can take over the braking of the rotating part of the revolving door in whole or in part, is integrated into the drive unit, it can be ensured that, in the event of an emergency stop, the braking effect is greater than could be achieved with the electric motor alone can be. Furthermore, this results in redundancy with regard to braking the rotating part of the revolving door, in that both the electric motor and the braking device can be used for this purpose.
  • a locking device with which the rotary movement of the rotating part of the revolving door can be blocked, is integrated in the drive unit, the rotary movement can be blocked without an additional device outside the drive unit.
  • the inner bearing ring can also be immovably connected to the vertical extension of the rotating part of the drive unit.
  • the inner bearing ring can move in the axial direction of the center column relative to the outer bearing ring of the slide bearing and absorbs the considerable play in length expansion in the range of up to +/- 5 mm of the center column.
  • roller bearing is used, the roller bearing being immovable and fixed and on the vertical leg of the rotating part of the Drive unit is coupled.
  • the roller bearings used with it are therefore designed to be axially non-displaceable and only the accommodation of the center column on the bearing arrangement absorbs the axial displacement forces.
  • the cover-side receptacle of the center column consists of two toothed cylinder sleeves which are inserted into one another in radial toothing engagement and are designed to be axially displaceable with respect to one another.
  • One, inner cylinder sleeve is non-rotatably connected to the outer circumference of the center column and carries a radially outer toothing aligned in the axial direction, which is distributed evenly around the circumference.
  • the inner cylinder sleeve which is rigidly connected to the central column, participates in the axial expansion play of the central column and slides along the toothing in relation to the opposite outer cylinder sleeve, which in turn is rigidly connected to the rotating part of the drive unit.
  • the toothed engagement of the two cylinder sleeves thus takes over the axial expansion play of the center column, so that the roller bearings used can be arranged torque-proof and immovably on the rotating part of the drive unit.
  • bearing unit is arranged directly on the center column and can absorb the axial expansion play of the center column either directly or indirectly.
  • the two passage openings and the two drum walls 5 are arranged on a circle.
  • the two passage openings and the two drum walls 5 each occupy a quadrant.
  • the four mutually perpendicular door leaves 4 are attached to a center column 3 located in the center of the circle.
  • the center column 3 is rotatably mounted by means of the drive unit 1 and the bearing point 2 attached to the floor 6 below the rotating part of the revolving door.
  • the drive unit 1 shows a central vertical cross-section through the drive unit 1.
  • the drive unit 1 consists of a stationary part 8 and a rotating part 9.
  • the stationary part 8 of the drive unit 1 is attached to the ceiling 7.
  • the drive unit 1 includes a bearing 10 which is connected to the stationary part 8 of the drive unit 1 via a tight fit and to the rotating part 9 of the drive unit 1 via a loose fit. This bearing point is therefore suitable for taking on the function of the floating bearing for the storage of the rotating part of the revolving door.
  • the center column 3 is rigidly connected to the rotating part 9 of the drive unit 1 by means of a device 12 in such a way that the torque that occurs can be transmitted.
  • the drive unit 1 also includes an electric motor designed as a high-pole permanent-magnet synchronous motor with concentrated windings, a position sensor designed as a sine/cosine encoder, a braking device 18 and a locking device 20.
  • the high-pole permanent-magnet synchronous motor with concentrated windings consists of the stationary part 8 stator teeth 13 connected to the drive unit 1 and windings 14 wound around them and permanent magnets 15 mounted on the rotating part 9 of the drive unit 1.
  • the sine/cosine encoder consists of a reading device 16 connected to the fixed part 8 of the drive unit 1 and one on the rotating part 9 of the drive unit 1 mounted track 17.
  • the braking device 18 is connected to the fixed part 8 of the drive unit 1 and acts on the brake pad 19 on the rotating part 9 of the drive unit 1 for braking.
  • the locking device 20 is connected to the stationary part 8 of the drive unit 1 .
  • the plunger 21 of the locking device 20 is pressed into one of the slots 21 provided on the rotating part 9 of the drive unit 1 .
  • FIG. 2 Compared to the embodiment in FIG. 2, further details of the construction are shown in FIG.
  • the rotating part 9 of the drive unit consists of an approximately plate-shaped base disk 9a which is oriented horizontally and which, at its radially outer end, concentrically carries a projection 9b which is oriented vertically.
  • a vertically aligned projection 9c is arranged concentrically approximately in the central region, and near the center column 3 another vertically aligned projection 9d is provided concentrically.
  • the fixed part 8 of the drive unit consists of an approximately plate-shaped base disk 8a, on the radially outer end of which the projection 8b and radially inwardly the projection 8d are formed.
  • the two disk-shaped parts 8 and 9 with the approaches 8b, 8d and 9b-9d shown are therefore one inside the other.
  • the device 12 for connecting the center column 3 to the rotating part 9 of the drive unit consists of the base body 44 with a conical bore and the tapered sleeve 45. These are braced against one another, resulting in a rigid connection between the center column 3 and the rotating part 9 of the drive unit .
  • the bracing is done with the help of clamping screws 43, the head of which is supported on the cone sleeve 45 and which are screwed into the base body 44.
  • FIG. 3 now shows that the deep groove ball bearing 10 shown there is loosely seated in that the inner bearing ring 25 is arranged in an axially displaceable manner on the outer circumference of the extension 9d.
  • the bearing ring 25 is mounted in the area of a displacement surface 27 in an axially displaceable manner with the inner, vertical extension 9d.
  • the outer bearing ring 26 lies opposite the inner bearing ring 25 .
  • the outer bearing ring 26 rests on a circlip 34 placed on the fixed lug 8d of the stationary part of the drive unit, while a similar circlip 33 is placed on the upper end of the vertical lug 9d to limit displacement of the inner bearing ring in the axial direction.
  • center column 3 rotates in the directions of the arrows 28 and is driven in rotation.
  • FIG. 4 shows, as a further exemplary embodiment not according to the invention, that instead of a roller bearing, as has been described in the general part, a plain bearing 30 can also be used, as illustrated in FIG.
  • the inner bearing ring 35 can be displaced in the axial direction compared to the outer bearing ring 36 and thus has an axial bearing play 32 .
  • the two bearing rings 35, 36 are separated from one another in a manner known per se by a bearing gap 31, which can also be lubricated.
  • the inner bearing ring 35 is thus immovably connected with a tight fit 29 to the outer circumference of the vertical shoulder 9d.
  • FIG. 5 shows, as a further exemplary embodiment not according to the invention, that the axial play of movement of the center column 3 acting in the directions of the arrow 42 can also be absorbed by two cylinder sleeves 37, 38 connected to one another via toothing.
  • the inner cylinder sleeve 38 is non-rotatably connected with its inner circumference to the outer circumference of the center column 3 and has teeth 39 aligned in the longitudinal direction on its outer circumference.
  • the complementary toothing 41 of an outer cylinder sleeve 37 engages in this toothing 39 .
  • the two cylinder sleeves can thus be displaced axially with respect to one another via their meshing teeth 39 , 41 , but can transmit the torque to the center column 3 .

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  • Power-Operated Mechanisms For Wings (AREA)

Description

Die Erfindung betrifft eine Antriebseinheit für eine automatische Karusselltür nach dem Oberbegriff von Anspruch 1 und Anspruch 2.The invention relates to a drive unit for an automatic revolving door according to the preamble of claim 1 and claim 2.

Zentral angetriebene automatische Karusselltüren sind üblicherweise so aufgebaut, dass die Abtriebswelle der Antriebseinheit über ein Übertragungselement wie Kette, Zahnriemen oder ähnlich den um die Mittelachse rotierenden Teil der Karusselltür antreibt. Bei dieser Ausführungsform sind die Abtriebswelle der Antriebseinheit und der um die Mittelachse rotierende Teil der Karusselltür separat gelagert.Centrally driven automatic revolving doors are usually constructed in such a way that the output shaft of the drive unit drives the part of the revolving door rotating around the central axis via a transmission element such as a chain, toothed belt or similar. In this embodiment, the output shaft of the drive unit and the part of the revolving door rotating about the central axis are mounted separately.

Die Druckschrift DE 93 19 807 U1 beschreibt eine solche zentral angetriebene automatische Karusselltür der üblichen Bauart, bei welcher die Antriebseinheit über ein Übertragungselement den um die Mittelachse rotierenden Teil der Karusselltür antreibt.The pamphlet DE 93 19 807 U1 describes such a centrally driven automatic revolving door of the usual design, in which the drive unit drives the part of the revolving door rotating about the central axis via a transmission element.

In der Patentschrift DE 197 34 398 B4 ist eine automatische Karusselltür beschrieben, bei der das Drehmoment ebenfalls über ein Übertragungselement von der Antriebseinheit auf den um die Mittelachse rotierenden Teil der Karusselltür übertragen wird, wobei hier das Übertragungselement im radialen Aussenbereich der Karusselltür angeordnet ist.In the patent DE 197 34 398 B4 describes an automatic revolving door in which the torque is also transmitted via a transmission element from the drive unit to the part of the revolving door rotating about the central axis, with the transmission element being arranged in the radial outer region of the revolving door.

In der Druckschrift DE 44 25 047 A1 ist eine automatische Karusselltür offenbart, in welcher die einzelnen an der Zentralwelle gelenkig gelagerten Türflügel über je einen Linearmotor angetrieben werden. Die Linearmotoren sind dabei jeweils ringförmig oberhalb der Türflügel konzentrisch zueinander angeordnet, wobei die konzentrisch ringförmigen Statorteile ortsfest und die Läuferteile flügelfest angebracht sind. Speziell an der beschriebenen Anordnung ist, dass die Elektromotoren direkt, ohne Übertragungselement, auf die Türflügel einwirken.In the pamphlet DE 44 25 047 A1 discloses an automatic revolving door in which the individual door leaves articulated on the central shaft are each driven by a linear motor. The linear motors are each arranged in a ring above the door leaf concentrically to one another, the concentric ring-shaped stator parts being fixed in place and the rotor parts being fixed to the leaf. What is special about the arrangement described is that the electric motors act directly on the door leaves without a transmission element.

In der Patentschrift DE 10 2004 033 304 B4 ist eine automatische Karusselltür beschrieben, welche ebenfalls ohne Übertragungselement auskommt, indem der getriebelose Elektromotor konzentrisch zur Mittelachse angeordnet und dessen Rotor Bestandteil des um die Mittelachse rotierenden Teils der Karusselltür ist. Die Patentschrift beschreibt somit eine zentral angetriebene automatische Karusselltür mit Direktantrieb.In the patent DE 10 2004 033 304 B4 describes an automatic revolving door, which also does not require a transmission element, in that the gearless electric motor is arranged concentrically to the central axis and its rotor is part of the part of the revolving door that rotates about the central axis. The patent thus describes a centrally driven automatic revolving door with a direct drive.

In der Druckschrift DE 10 2010 024 108 A1 ist eine Weiterentwicklung der in der Patentschrift DE 10 2004 033 304 B4 beschriebenen automatischen Karusselltür offenbart, bei welcher die Antriebseinheit eine Höhe von maximal 80 mm aufweist.In the pamphlet DE 10 2010 024 108 A1 is a further development of that in the patent specification DE 10 2004 033 304 B4 described automatic revolving door disclosed, in which the drive unit has a maximum height of 80 mm.

In der Gruppe der Druckschriften DE 10 2013 000 416 A1 , DE 10 2013 000 419 A1 , DE 10 2013 000 420 A1 , DE 10 2013 000 421 A1 , DE 10 2013 000 422 A1 und DE 10 2013 000 423 B3 schliesslich sind verschiedene Detailaspekte einer zentral angetriebenen automatische Karusselltür mit Direktantrieb beschrieben, bei welcher der Rotor des Elektromotors Bestandteil des um die Mittelachse rotierenden Teils der Karusselltür ist und gemeinsam mit diesem gelagert ist.In the group of publications DE 10 2013 000 416 A1 , DE 10 2013 000 419 A1 , DE 10 2013 000 420 A1 , DE 10 2013 000 421 A1 , DE 10 2013 000 422 A1 and DE 10 2013 000 423 B3 Finally, various detailed aspects of a centrally driven automatic revolving door with a direct drive are described, in which the rotor of the electric motor is part of the part of the revolving door rotating about the central axis and is mounted together with it.

Zentral angetriebene automatische Karusselltüren, bei denen der um die Mittelachse rotierende Teil der Karusselltür über ein Übertragungselement von der Antriebseinheit angetrieben wird, haben den Nachteil, dass der Antriebsstrang aus verhältnismässig vielen Teilen aufgebaut ist, geräuschmässig eher schlecht abschneidet und sich nur schwer mit geringer Höhe realisieren lässt.Centrally driven automatic revolving doors, in which the part of the revolving door rotating around the central axis is driven by the drive unit via a transmission element, have the disadvantage that the drive train is made up of a relatively large number of parts, is rather poor in terms of noise and is difficult to realize with a low height leaves.

So weist insbesondere die in der Druckschrift DE 93 19 807 U1 beschriebene automatische Karusselltür alle oben erwähnten Nachteile auf. Der Antriebsstrang besteht aus Elektromotor, Getriebe, Getriebeabtriebsrad, Übertragungselement und Karussellantriebsrad, wobei das Getriebe seinerseits wiederum aus diversen Einzelteilen aufgebaut ist. Wegen der Getriebeuntersetzung dreht sich der Elektromotor mit einer verhältnismässig hohen Drehzahl, was Geräusche verursacht. Geräusche entstehen ferner auch durch das Getriebe selbst. Die Höhe der Antriebseinheit setzt sich zusammen aus der Höhe der Motor/Getriebe-Einheit und der Breite des Getriebeabtriebsrads.Thus, in particular, in the publication DE 93 19 807 U1 described automatic revolving door on all the disadvantages mentioned above. The drive train consists of an electric motor, gearbox, gearbox output wheel, transmission element and carousel drive wheel, with the gearbox in turn being made up of various individual parts. Because of the gear reduction, the electric motor rotates at a relatively high speed, which causes noise. Noise is also caused by the gear itself. The height of the drive unit is made up of the height of the motor/gear unit and the width of the gear output wheel.

Hinsichtlich Geräusch und Höhe der Antriebseinheit lässt sich mit Lösungen, wie sie in der Patentschrift DE 197 34 398 B4 oder in der Druckschrift DE 44 25 047 A1 beschrieben sind, eine gewisse Verbesserung erzielen. Nach wie vor unbefriedigend ist hingegen die Vielzahl der Teile.With regard to noise and height of the drive unit can be solved with solutions such as those in the patent DE 197 34 398 B4 or in print DE 44 25 047 A1 are described achieve some improvement. However, the number of parts is still unsatisfactory.

Zentral angetriebene automatische Karusselltüren mit Direktantrieb sind demgegenüber vorteilhafter.In contrast, centrally driven automatic revolving doors with a direct drive are more advantageous.

Dennoch weisen auch die in der Patentschrift DE 10 2004 033 304 B4 , in der Druckschrift DE 10 2010 024 108 A1 sowie in der Gruppe der Druckschriften DE 10 2013 000 416 A1 , DE 10 2013 000 419 A1 , DE 10 2013 000 420 A1 , DE 10 2013 000 421 A1 , DE 10 2013 000 422 A1 und DE 10 2013 000 423 B3 beschriebenen Lösungen ein Verbesserungspotential auf. Ein Verbesserungspotential besteht dabei insbesondere im Bereich der konkreten Ausgestaltung der Lagerstelle, des Elektromotors, des Lagegebers zur Kommutierung des Elektromotors, der Bremseinrichtung, welche die Abbremsung des rotierenden Teils der Karusselltür ganz oder teilweise übernehmen kann und der Verriegelungseinrichtung, mit welcher die Drehbewegung des rotierenden Teils der Karusselltür blockiert werden kann.Nevertheless, also in the patent specification DE 10 2004 033 304 B4 , in the pamphlet DE 10 2010 024 108 A1 as well as in the group of publications DE 10 2013 000 416 A1 , DE 10 2013 000 419 A1 , DE 10 2013 000 420 A1 , DE 10 2013 000 421 A1 , DE 10 2013 000 422 A1 and DE 10 2013 000 423 B3 described solutions on a potential for improvement. There is potential for improvement in particular in the area of the specific design of the bearing point, the electric motor, the position sensor for commutation of the electric motor, the braking device, which can take over the braking of the rotating part of the revolving door in whole or in part, and the locking device, with which the rotary movement of the rotating part can be stopped of the revolving door can be blocked.

Die genannten Druckschriften haben Nachteile im Hinblick auf die Verschleißfestigkeit der Drehlager zur Aufnahme der Mittelsäule.The documents mentioned have disadvantages with regard to the wear resistance of the pivot bearing for accommodating the center column.

Die Mittelsäule hat bei einer Länge von z.B. 280 cm ein axiales Längenausdehnungsspiel von im Bereich von +/- 5 mm. Ohne Kompensation des Längenausdehnungsspiels besteht die Gefahr von mechanischen Spannungen im System und einer daraus folgenden unzulässigen axialen Belastung der Drehlager, was zu einem vorzeitigen Verschleiss führt.With a length of e.g. 280 cm, the central column has an axial length expansion range of +/- 5 mm. Without compensation for the play in length expansion, there is a risk of mechanical stresses in the system and a resulting impermissible axial load on the pivot bearing, which leads to premature wear.

Die DE 10 2013 000 421 A1 sieht zum Ausgleich des Ausdehnungsspiels zwei im Abstand voneinander angeordnete und jeweils senkrecht zueinander ausgerichtete Rillenkugellager vor. Damit erfolgt kein Ausgleich des Längeausdehnungsspiels, sondern nur eine Erhöhung der Tragkraft des Lagers in axialer und radialer Richtung.the DE 10 2013 000 421 A1 provides two deep groove ball bearings arranged at a distance from each other and aligned perpendicular to each other to compensate for the expansion play. This does not compensate for the length expansion play, but only increases the load capacity of the bearing in the axial and radial directions.

Damit besteht jedoch der Nachteil eines erhöhten Bauaufwandes und einer unerwünscht hohen Bauhöhe, weil die beiden Rillenkugellager zueinander in der Höhe versetzt angeordnet sind. Das Grundproblem des Längenausgleichs ist mit dieser Konstruktion jedoch nicht gelöst.However, this has the disadvantage of increased construction costs and an undesirably high overall height, because the two deep groove ball bearings are offset in height from one another. However, the basic problem of length compensation is not solved with this construction.

Die DE 197 34 398 B4 verwendet einen radial auswärts liegenden Drehkranz, auf dem Laufrollen der Mittelsäule abrollen. Damit besteht jedoch der Nachteil einer aufwendigen, einen großen Durchmesser einnehmenden Konstruktion und bei einer Längenausdehnung der Mittelsäule übernimmt der Drehkranz nur noch ungenügend die deckenseitige Lagerung der Mittelsäule.the DE 197 34 398 B4 uses a radially outward slewing ring on which the rollers of the center column roll. However, this has the disadvantage of a complex construction with a large diameter, and if the center column is extended in length, the slewing ring only insufficiently supports the ceiling-side bearing of the center column.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Antriebseinheit für eine automatische Karusselltür der eingangs genannten Art so weiterzubilden, dass mit geringem Konstruktionsaufwand und geringem Verschleiß ein axiales Längenausdehnungsspiel der Mittelsäule günstig von der deckennahen Lagerung der Mittelsäule aufgenommen werden kann.The invention is therefore based on the object of developing a drive unit for an automatic revolving door of the type mentioned at the outset in such a way that an axial length expansion play of the center column can be accommodated favorably by the bearing of the center column near the ceiling with little construction effort and little wear.

Zur Lösung der gestellten Aufgabe ist die Erfindung durch die technische Lehre der Ansprüche 1 und 2 gekennzeichnet.The invention is characterized by the technical teaching of claims 1 and 2 in order to solve the task at hand.

Merkmal der Erfindung ist, dass das deckenseitige Lager der Mittelsäule in axialer Richtung verschiebbar ausgebildet ist oder dass die Mittelsäule bezüglich des deckennahen Lagers verschiebbar ausgebildet ist.A feature of the invention is that the ceiling-side bearing of the center column is designed to be displaceable in the axial direction or that the center column is designed to be displaceable with respect to the bearing near the ceiling.

Die Erfindung sieht demnach grundsätzlich zwei verschiedene Ausführungsformen vor:

  1. 1. das deckenseitige Lager ist axial verschiebbar ausgebildet und die ein axiales Ausdehnungsspiel aufweisende Mittelsäule ist unverschiebbar mit einem Lagerteil des deckenseitigen Lagers gekoppelt, sodass dieses Lagerteil die axiale Verschiebebewegung mitmacht.
  2. 2. das deckenseitige Lager ist axial unverschiebbar und die ein axiales Ausdehnungsspiel aufweisende Mittelsäule ist axial verschiebbar in der Lageranordnung aufgenommen.
The invention therefore basically provides two different embodiments:
  1. 1. The ceiling-side bearing is designed to be axially displaceable and the center column, which has an axial expansion clearance, is immovably coupled to a bearing part of the ceiling-side bearing, so that this bearing part takes part in the axial displacement movement.
  2. 2. the ceiling-side bearing is axially immovable and the center column, which has an axial expansion clearance, is accommodated in the bearing arrangement in an axially displaceable manner.

Bezüglich der ersten Ausführung ist die Lagerstelle in der Antriebseinheit so ausgestaltet, dass der rotierende Teil der Karusselltür gegenüber dem feststehenden Teil der Antriebseinheit in Richtung der Mittelachse verschiebbar ist, somit ist gewährleistet, dass diese Lagerstelle als Loslager der Lagerung des um die Mittelachse rotierenden Teils der Karusselltür dienen kann.With regard to the first embodiment, the bearing point in the drive unit is designed in such a way that the rotating part of the revolving door can be displaced in relation to the fixed part of the drive unit in the direction of the central axis, thus ensuring that this bearing point acts as a movable bearing for the bearing of the part of the revolving door can serve.

Somit kann die Lagerstelle unterhalb des rotierenden Teils der Karusselltür, welche auch das Gewicht des rotierenden Teils der Karusselltür trägt, als Festlager der Lagerung des rotierenden Teils der Karusselltür ausgestaltet werden. Damit ist gewährleistet, dass das System nicht überbestimmt wird. Dies ist wichtig, damit das System auch bei Verformungen, welche z.B. thermisch bedingt sein können, weiterhin verschleissarm funktioniert.Thus, the bearing point below the rotating part of the revolving door, which also bears the weight of the rotating part of the revolving door, can be designed as a fixed bearing for the storage of the rotating part of the revolving door. This ensures that the system is not overdetermined. This is important so that the system continues to function with little wear and tear even in the event of deformations, which can be thermally induced, for example.

In einer ersten, bevorzugten Ausgestaltung der Erfindung ist es vorgesehen, dass das deckenseitige Lager der Mittelsäule lediglich aus einem einzigen Rillenkugellager besteht, welches die in radialer Richtung wirkenden Kräfte aufnimmt und dessen innerer Lagerring verschiebbar auf einem in vertikaler Richtung ausgerichteten Ansatz des rotierenden Teils der Antriebseinheit gelagert ist.In a first, preferred embodiment of the invention, it is provided that the ceiling-side bearing of the center column consists of just a single deep groove ball bearing, which absorbs the forces acting in the radial direction and whose inner bearing ring can be displaced on a vertically aligned extension of the rotating part of the drive unit is stored.

Damit wird gewährleistet, dass das Lager in der Antriebseinheit feststeht, jedoch die radial innere Berührungsfläche des inneren Lagerrings dieses Lagers in Bezug zu einem vertikal ausgerichteten Ansatz des rotierenden Teils der Antriebseinheit verschiebbar ist.This ensures that the bearing is fixed in the drive unit, but that the radially inner contact surface of the inner bearing ring of this bearing is displaceable in relation to a vertically aligned shoulder of the rotating part of the drive unit.

Damit besteht der Vorteil, dass lediglich nur noch ein einziges Wälzlager verwendet werden muss, welches bevorzugt als Rillenkugellager ausgebildet ist.This has the advantage that only a single roller bearing has to be used, which is preferably designed as a deep groove ball bearing.

Es bedarf demnach nicht zwei gegeneinander versetzt angeordnete und mit unterschiedlichen Lageraufnahmen versehene Rillenkugellager, wie es aus dem Stand der Technik bekannt ist. Damit kann die Bauhöhe der gesamten Antriebseinheit niedrig gehalten werden, und das Rillenkugellager ist somit in der Lage, das axiale Ausdehnungsspiel der Mittelsäule aufzunehmen.It is therefore not necessary to have two deep groove ball bearings offset from one another and provided with different bearing mounts, as is known from the prior art. This allows the height of the entire Drive unit are kept low, and the deep groove ball bearing is thus able to absorb the axial expansion play of the center column.

In einer anderen Ausgestaltung der Erfindung ist es vorgesehen, dass statt eines Rillenkugellagers ein anderes Wälzlager verwendet wird, wie z. B. ein Zylinderrollenlager, Tonnenlager oder Pendelrollenlager. Alle diese Wälzlager können ein- oder mehrreihig ausgebildet sein. Ferner könnte auch ein zweireihiges Schrägkugellager eingesetzt werden.In another embodiment of the invention, it is provided that instead of a deep groove ball bearing another roller bearing is used, such as. B. a cylindrical roller bearing, barrel roller bearing or spherical roller bearing. All of these roller bearings can be designed in one or more rows. Furthermore, a double-row angular contact ball bearing could also be used.

Ebenso sind Kombinationen verschiedener Lagereinheiten möglich und vorgesehen. Bei allen Lagereinheiten wird es bevorzugt, wenn der innere Lagerring nicht unverschiebbar mit dem vertikalen Ansatz des rotierenden Teils der Antriebseinheit verbunden ist, sondern auf diesem axial verschiebbar ist.Likewise, combinations of different storage units are possible and provided. In all bearing units, it is preferred if the inner bearing ring is not immovably connected to the vertical extension of the rotating part of the drive unit, but is axially displaceable on it.

Eine Verringerung der Bauhöhe der Antriebseinheit ergibt sich zusätzlich durch das folgende weitere Merkmal :
Dadurch, dass der Elektromotor in der Antriebseinheit als hochpoliger permanentmagnet-erregter Synchronmotor mit konzentrierten Wicklungen ausgestaltet ist, ergibt sich gegenüber konventionellen verteilten Wicklungen der Vorteil von deutlich kleineren Wickelköpfen. Dadurch ergibt sich letztlich eine kleinere Höhe der Antriebseinheit und ein geringere Erwärmung.A reduction in the overall height of the drive unit also results from the following additional feature:
Due to the fact that the electric motor in the drive unit is designed as a high-pole, permanent magnet-excited synchronous motor with concentrated windings, there is the advantage of significantly smaller winding overhangs compared to conventional distributed windings. This ultimately results in a smaller height of the drive unit and less heating.

Unter dem Begriff "konzentrierte Wicklungen" wird verstanden, dass statorseitig gleichmäßig am Umfang verteilte und im gegenseitigen Abstand voneinander angeordnete Nutenzähne vorhanden sind, die jeweils eine einzelne (auf den Nutzahn konzentrierte) Statorwicklung tragen.The term “concentrated windings” is understood to mean that on the stator side there are slot teeth which are distributed uniformly around the circumference and are arranged at a mutual distance from one another, each carrying a single stator winding (concentrated on the slot tooth).

Dadurch, dass der Lagegeber zur Kommutierung des Elektromotors in der Antriebseinheit als Sinus/Cosinus-Geber mit einer der Polpaarzahl des Elektromotors entsprechenden Anzahl Perioden pro Umdrehung ausgestaltet ist, kann die Kommutierung des Elektromotors einfach bewerkstelligt werden.Since the position sensor for commutation of the electric motor in the drive unit is designed as a sine/cosine sensor with a number of periods per revolution corresponding to the number of pole pairs of the electric motor, the commutation of the electric motor can be easily accomplished.

In dem der Lagegeber zusätzlich eine Sinus/Cosinus-Spur mit einer Periode pro Umdrehung aufweist, ist auch jederzeit die Position des um die Mittelachse rotierenden Teils der Karusselltür bekannt.Since the position encoder also has a sine/cosine track with one period per revolution, the position of the part of the revolving door rotating about the central axis is also known at all times.

Dadurch, dass eine Bremseinrichtung, welche die Abbremsung des rotierenden Teils der Karusselltür ganz oder teilweise übernehmen kann, in die Antriebseinheit integriert ist, kann gewährleistet werden, dass bei einem Notstopp mit einer grösseren Bremswirkung, als sie mit dem Elektromotor alleine erzielt werden könnte, abgebremst werden kann. Ferner ergibt sich dadurch eine Redundanz hinsichtlich Abbremsung des rotierenden Teils der Karusselltür, indem dafür sowohl der Elektromotor als auch die Bremseinrichtung eingesetzt werden kann.Because a braking device, which can take over the braking of the rotating part of the revolving door in whole or in part, is integrated into the drive unit, it can be ensured that, in the event of an emergency stop, the braking effect is greater than could be achieved with the electric motor alone can be. Furthermore, this results in redundancy with regard to braking the rotating part of the revolving door, in that both the electric motor and the braking device can be used for this purpose.

Dadurch, dass eine Verriegelungseinrichtung, mit welcher die Drehbewegung des rotierenden Teils der Karusselltür blockiert werden kann, in der Antriebseinheit integriert ist, kann die Drehbewegung ohne eine zusätzliche Vorrichtung ausserhalb der Antriebseinheit blockiert werden.Because a locking device, with which the rotary movement of the rotating part of the revolving door can be blocked, is integrated in the drive unit, the rotary movement can be blocked without an additional device outside the drive unit.

In einer anderen Ausgestaltung der Erfindung kann es vorgesehen sein, dass das Rillenkugellager oder die anderen, vorher beschriebenen Wälzlager nunmehr als Gleitlager ausgebildet sind.In another embodiment of the invention, it can be provided that the deep groove ball bearing or the other roller bearings described above are now designed as sliding bearings.

Bei der Verwendung eines Gleitlagers besteht der Vorteil, dass auch der innere Lagerring unverschiebbar mit dem vertikalen Ansatz des rotierenden Teils der Antriebseinheit verbunden werden kann.When using a plain bearing, there is the advantage that the inner bearing ring can also be immovably connected to the vertical extension of the rotating part of the drive unit.

Somit kann sich der innere Lagerring in axialer Richtung der Mittelsäule gegenüber dem äußeren Lagerring des Gleitlagers verschieben und nimmt das erhebliche Längenausdehnungsspiel im Bereich von bis zu +/- 5 mm der Mittelsäule auf.Thus, the inner bearing ring can move in the axial direction of the center column relative to the outer bearing ring of the slide bearing and absorbs the considerable play in length expansion in the range of up to +/- 5 mm of the center column.

Bezüglich der im kennzeichnenden Teil des Anspruches 1 genannten zweiten Alternative ist es vorgesehen, dass das vorher angegebene Rillenkugellager oder ein anderes, vorher erwähntes Wälzlager verwendet wird, wobei das Wälzlager unverschiebbar und fest sowie an dem vertikalen Schenkel des rotierenden Teils der Antriebseinheit gekoppelt ist. Die damit verwendeten Wälzlager sind also axial unverschiebbar ausgebildet und lediglich die Aufnahme der Mittelsäule an der Lageranordnung nimmt die axialen Verschiebungskräfte auf.With regard to the second alternative mentioned in the characterizing part of claim 1, it is provided that the previously specified deep groove ball bearing or another, previously mentioned roller bearing is used, the roller bearing being immovable and fixed and on the vertical leg of the rotating part of the Drive unit is coupled. The roller bearings used with it are therefore designed to be axially non-displaceable and only the accommodation of the center column on the bearing arrangement absorbs the axial displacement forces.

Als zusätzliches, nicht erfindungsgemäßes Ausführungsbeispiel besteht die deckenseitige Aufnahme der Mittelsäule aus zwei verzahnten, im radialen Verzahnungseingriff ineinander gesteckten Zylinderhülsen, die axial zueinander verschiebbar ausgebildet sind.As an additional exemplary embodiment, not according to the invention, the cover-side receptacle of the center column consists of two toothed cylinder sleeves which are inserted into one another in radial toothing engagement and are designed to be axially displaceable with respect to one another.

Die eine, innere Zylinderhülse ist drehfest mit dem Außenumfang der Mittelsäule verbunden und trägt eine radial äußere, in axialer Richtung ausgerichtete Verzahnung, die gleichmäßig am Umfang verteilt angeordnet ist.One, inner cylinder sleeve is non-rotatably connected to the outer circumference of the center column and carries a radially outer toothing aligned in the axial direction, which is distributed evenly around the circumference.

In diese Verzahnung greift die komplementäre Gegenverzahnung einer gegenüberliegend angeordneten Zylinderhülse ein, die fest mit dem rotierenden Teil der Antriebseinheit verbunden ist.The complementary counter-toothing of an oppositely arranged cylinder sleeve, which is firmly connected to the rotating part of the drive unit, engages in this toothing.

Auf diese Weise nimmt die innere Zylinderhülse, die fest mit der Mittelsäule verbunden ist, am axialen Ausdehnungsspiel der Mittelsäule teil und verschiebt sich entlang der Verzahnung in Bezug auf die gegenüberliegende äußere Zylinderhülse, die wiederum fest mit dem rotierenden Teil der Antriebseinheit verbunden ist.In this way, the inner cylinder sleeve, which is rigidly connected to the central column, participates in the axial expansion play of the central column and slides along the toothing in relation to the opposite outer cylinder sleeve, which in turn is rigidly connected to the rotating part of the drive unit.

Somit übernimmt der verzahnte Eingriff der beiden Zylinderhülsen das axiale Ausdehnungsspiel der Mittelsäule, so dass die verwendeten Wälzlager drehmomentenfest und unverschiebbar am rotierenden Teil der Antriebseinheit angeordnet sein können.The toothed engagement of the two cylinder sleeves thus takes over the axial expansion play of the center column, so that the roller bearings used can be arranged torque-proof and immovably on the rotating part of the drive unit.

Damit wird der Aufbau der Wälzlager einfacher, weil das axiale Ausdehnungsspiel der Mittelsäule durch verzahnt ineinander eingreifende und ein axiales Ausdehnungsspiel zulassende Zylinderhülsen aufgenommen wird.This simplifies the construction of the roller bearing, because the axial expansion play of the center column is absorbed by cylinder sleeves that mesh with one another and allow axial expansion play.

Allen Ausführungsformen ist gemeinsam, dass direkt an der Mittelsäule die Lagereinheit angeordnet ist, die entweder direkt oder indirekt das axiale Ausdehnungsspiel der Mittelsäule aufnehmen kann.All of the embodiments have in common that the bearing unit is arranged directly on the center column and can absorb the axial expansion play of the center column either directly or indirectly.

Es werden demnach radial außen liegende Drehkränze vermieden, die einen hohen Konstruktionsaufwand benötigen und nur ungenügend in der Lage sind, ein axiales Ausdehnungsspiel der Mittelsäule zuverlässig zu übertragen.Accordingly, slewing rings located radially on the outside are avoided, which require a high design effort and are only insufficiently able to reliably transmit an axial expansion play of the center column.

Im Folgenden wird die Erfindung anhand einer lediglich einen Ausführungsweg darstellenden Zeichnung näher erläutert.The invention is explained in more detail below with reference to a drawing that merely shows one embodiment.

Es zeigen:

  • Figur 1: schematisiert eine automatische Karusselltür in auseinander gezogener Darstellung
  • Figur 2: einen Schnitt durch die Antriebseinheit in einem ersten Ausführungsbeispiel der Erfindung
  • Figur 3: eine detaillierte Darstellung der Zeichnung nach Figur 2 mit Darstellung weiterer Einzelheiten
  • Figur 4: eine gegenüber Figur 2 und 3 abgewandelte Ausführungsform, die zur Erfindung nicht gehört
  • Figur 5: eine gegenüber Figur 3 abgewandelte zweite Ausführungsform, die zur Erfindung nicht gehört
Show it:
  • Figure 1: Schematic representation of an automatic revolving door in an exploded view
  • FIG. 2: a section through the drive unit in a first exemplary embodiment of the invention
  • FIG. 3: a detailed representation of the drawing according to FIG. 2 with representation of further details
  • FIG. 4: an embodiment modified in relation to FIGS. 2 and 3, which does not belong to the invention
  • FIG. 5: a second embodiment modified in relation to FIG. 3, which does not belong to the invention

Fig. 1 zeigt die automatische Karusselltür in einem typischen Anwendungsfall. Die beiden Durchtrittsöffnungen und die beiden Trommelwände 5 sind auf einem Kreis angeordnet. Im Falle einer Ausführungsform der Karusselltür mit vier Türflügeln 4 belegen die beiden Durchtrittsöffnungen und die beiden Trommelwände 5 dabei je einen Viertelkreis. Die vier aufeinander senkrecht stehenden Türflügel 4 sind an einer im Zentrum des Kreises befindlichen Mittelsäule 3 befestigt. Die Mittelsäule 3 ist mittels der Antriebseinheit 1 und der am Boden 6 befestigten Lagerstelle 2 unterhalb des rotierenden Teils der Karusselltür drehbar gelagert. Indem die Mittelsäule 3 mittels der Antriebseinheit 1 angetrieben wird, bewegen sich die durch die Türflügel gebildeten vier Sektoren im Kreis und erlauben Personen, durch die eine Durchgangsöffnung in einen Sektor einzutreten, mit diesem mitzugehen und durch die andere Durchgangsöffnung wieder auszutreten und damit die automatische Karusselltür zu durchschreiten.1 shows the automatic revolving door in a typical application. The two passage openings and the two drum walls 5 are arranged on a circle. In the case of an embodiment of the revolving door with four door leaves 4, the two passage openings and the two drum walls 5 each occupy a quadrant. The four mutually perpendicular door leaves 4 are attached to a center column 3 located in the center of the circle. The center column 3 is rotatably mounted by means of the drive unit 1 and the bearing point 2 attached to the floor 6 below the rotating part of the revolving door. By driving the center pillar 3 by means of the drive unit 1, they move through the door leaves formed four sectors in a circle and allow people to enter a sector through one passage opening, go with it and exit again through the other passage opening and thus pass through the automatic revolving door.

Fig. 2 zeigt einen mittigen Querschnitt vertikal durch die Antriebseinheit 1. Die Antriebseinheit 1 besteht aus einem feststehenden Teil 8 und einem rotierenden Teil 9. Der feststehende Teil 8 der Antriebseinheit 1 ist an der Decke 7 befestigt. Die Antriebseinheit 1 beinhaltet ein Lager 10, welches über einen Festsitz mit dem feststehenden Teil 8 der Antriebseinheit 1 und einen Lossitz 11 mit dem rotierenden Teil 9 der Antriebseinheit 1 verbunden ist. Somit ist diese Lagerstelle dazu geeignet, die Funktion des Loslagers der Lagerung des rotierenden Teils der Karusselltür übernehmen. Die Mittelsäule 3 ist mittels einer Vorrichtung 12 mit dem rotierenden Teil 9 der Antriebseinheit 1 derart, dass das auftretende Drehmoment übertragen werden kann, starr verbunden.2 shows a central vertical cross-section through the drive unit 1. The drive unit 1 consists of a stationary part 8 and a rotating part 9. The stationary part 8 of the drive unit 1 is attached to the ceiling 7. FIG. The drive unit 1 includes a bearing 10 which is connected to the stationary part 8 of the drive unit 1 via a tight fit and to the rotating part 9 of the drive unit 1 via a loose fit. This bearing point is therefore suitable for taking on the function of the floating bearing for the storage of the rotating part of the revolving door. The center column 3 is rigidly connected to the rotating part 9 of the drive unit 1 by means of a device 12 in such a way that the torque that occurs can be transmitted.

Die Antriebseinheit 1 beinhaltet weiter einen als hochpoligen permanentmagnet-erregten Synchronmotor mit konzentrierten Wicklungen ausgeführten Elektromotor, einen als Sinus/Cosinus-Geber ausgeführten Lagegeber, eine Bremseinrichtung 18 und eine Verriegelungseinrichtung 20. Der hochpolige permanentmagneterregte Synchronmotor mit konzentrierten Wicklungen besteht aus mit dem feststehenden Teil 8 der Antriebseinheit 1 verbundenen Statorzähnen 13 und darum gewickelten Wicklungen 14 und auf dem rotierenden Teil 9 der Antriebseinheit 1 angebrachten Permanentmagneten 15. Der Sinus/Cosinus-Geber besteht aus einer mit dem feststehenden Teil 8 der Antriebseinheit 1 verbundenen Lesevorrichtung 16 und einer auf dem rotierenden Teil 9 der Antriebseinheit 1 angebrachten Spur 17. Die Bremseinrichtung 18 ist mit dem feststehenden Teil 8 der Antriebseinheit 1 verbunden und wirkt zum Bremsen über den Bremsbelag 19 auf den rotierenden Teil 9 der Antriebseinheit 1 ein.The drive unit 1 also includes an electric motor designed as a high-pole permanent-magnet synchronous motor with concentrated windings, a position sensor designed as a sine/cosine encoder, a braking device 18 and a locking device 20. The high-pole permanent-magnet synchronous motor with concentrated windings consists of the stationary part 8 stator teeth 13 connected to the drive unit 1 and windings 14 wound around them and permanent magnets 15 mounted on the rotating part 9 of the drive unit 1. The sine/cosine encoder consists of a reading device 16 connected to the fixed part 8 of the drive unit 1 and one on the rotating part 9 of the drive unit 1 mounted track 17. The braking device 18 is connected to the fixed part 8 of the drive unit 1 and acts on the brake pad 19 on the rotating part 9 of the drive unit 1 for braking.

Die Verriegelungseinrichtung 20 ist mit dem feststehenden Teil 8 der Antriebseinheit 1 verbunden. Zum Verriegeln wird der Stössel 21 der Verriegelungseinrichtung 20 in einen der auf dem rotierenden Teil 9 der Antriebseinheit 1 angebrachten Schlitze 21 gedrückt.The locking device 20 is connected to the stationary part 8 of the drive unit 1 . For locking, the plunger 21 of the locking device 20 is pressed into one of the slots 21 provided on the rotating part 9 of the drive unit 1 .

In Figur 3 sind gegenüber der Ausführung in Figur 2 weitere Einzelheiten der Konstruktion eingezeichnet.Compared to the embodiment in FIG. 2, further details of the construction are shown in FIG.

Der rotierende Teil 9 der Antriebseinheit besteht aus einer etwa tellerförmigen Basisscheibe 9a, die horizontal ausgerichtet ist und die an ihrem radial äußeren Ende konzentrisch einen Ansatz 9b trägt, der vertikal ausgerichtet ist.The rotating part 9 of the drive unit consists of an approximately plate-shaped base disk 9a which is oriented horizontally and which, at its radially outer end, concentrically carries a projection 9b which is oriented vertically.

Im radialen Abstand von diesem äußeren Ansatz 9b ist etwa im mittigen Bereich konzentrisch ein vertikal ausgerichteter Ansatz 9c angeordnet und nahe der Mittelsäule 3 ist konzentrisch ein weiterer vertikal ausgerichteter Ansatz 9d vorgesehen.At a radial distance from this outer projection 9b, a vertically aligned projection 9c is arranged concentrically approximately in the central region, and near the center column 3 another vertically aligned projection 9d is provided concentrically.

In komplementärer Weise besteht der feststehende Teil 8 der Antriebseinheit aus einer etwa tellerförmigen Basisscheibe 8a, an deren radial äußeren Ende der Ansatz 8b und radial innen herum der Ansatz 8d angeformt ist.In a complementary manner, the fixed part 8 of the drive unit consists of an approximately plate-shaped base disk 8a, on the radially outer end of which the projection 8b and radially inwardly the projection 8d are formed.

Die beiden scheibenförmigen Teile 8 und 9 mit den dargestellten Ansätzen 8b, 8d und 9b-9d sind deshalb ineinander.The two disk-shaped parts 8 and 9 with the approaches 8b, 8d and 9b-9d shown are therefore one inside the other.

Die Vorrichtung 12 zur Verbindung der Mittelsäule 3 mit dem rotierenden Teil 9 der Antriebseinheit besteht aus dem Grundkörper 44 mit konischer Bohrung und der Kegelhülse 45. Diese werden gegeneinander verspannt, wodurch sich eine starre Verbindung zwischen der Mittelsäule 3 und dem rotierenden Teil 9 der Antriebseinheit ergibt. Das Verspannen geschieht unter Zuhilfenahme von Spannschrauben 43, die sich mit ihrem Kopf an der Kegelhülse 45 abstützen und die in den Grundkörper 44 eingeschraubt sind.The device 12 for connecting the center column 3 to the rotating part 9 of the drive unit consists of the base body 44 with a conical bore and the tapered sleeve 45. These are braced against one another, resulting in a rigid connection between the center column 3 and the rotating part 9 of the drive unit . The bracing is done with the help of clamping screws 43, the head of which is supported on the cone sleeve 45 and which are screwed into the base body 44.

Die Figur 3 zeigt nun, dass der Lossitz des dort gezeigten Rillenkugellagers 10 darin besteht, dass der innere Lagerring 25 axial verschiebbar auf dem Außenumfang des Ansatzes 9d angeordnet ist.FIG. 3 now shows that the deep groove ball bearing 10 shown there is loosely seated in that the inner bearing ring 25 is arranged in an axially displaceable manner on the outer circumference of the extension 9d.

Somit ist der Lagerring 25 im Bereich einer Verschiebungsfläche 27 axial verschiebbar mit dem inneren, vertikalen Ansatz 9d gelagert.Thus, the bearing ring 25 is mounted in the area of a displacement surface 27 in an axially displaceable manner with the inner, vertical extension 9d.

Anstatt des hier dargestellten Rillenkugellagers können sämtliche anderen bekannten Wälzlager verwendet werden, die vorher beschrieben wurden.Instead of the deep groove ball bearing shown here, all other known roller bearings that have been described above can be used.

Dem inneren Lagerring 25 liegt im Übrigen der äußere Lagerring 26 gegenüber. Der äußere Lagerring 26 liegt auf einem Seegerring 34 auf, der an dem feststehenden Ansatz 8d des feststehenden Teils der Antriebseinheit angeordnet ist, während zur Verschiebungsbegrenzung des inneren Lagerrings in axialer Richtung am oberen Ende des vertikalen Ansatzes 9d ein ähnlicher Seegerring 33 angeordnet ist.The outer bearing ring 26 lies opposite the inner bearing ring 25 . The outer bearing ring 26 rests on a circlip 34 placed on the fixed lug 8d of the stationary part of the drive unit, while a similar circlip 33 is placed on the upper end of the vertical lug 9d to limit displacement of the inner bearing ring in the axial direction.

Im Hinblick auf die Figur 2 wird noch angemerkt, dass sich die Mittelsäule 3 in den Pfeilrichtungen 28 dreht und drehend angetrieben ist.With regard to FIG. 2, it is also noted that the center column 3 rotates in the directions of the arrows 28 and is driven in rotation.

Die Figur 4 zeigt als weiteres, nicht erfindungsgemäßes Ausführungsbeispiel, dass statt eines Wälzlagers, wie es im allgemeinen Teil beschrieben wurde, auch ein Gleitlager 30 verwendet werden kann, wie es in Figur 4 dargestellt ist.FIG. 4 shows, as a further exemplary embodiment not according to the invention, that instead of a roller bearing, as has been described in the general part, a plain bearing 30 can also be used, as illustrated in FIG.

Hier ist der innere Lagerring 35 im Vergleich zu dem äußeren Lagerring 36 in axialer Richtung verschiebbar und weist somit ein axiales Lagerspiel 32 auf.Here the inner bearing ring 35 can be displaced in the axial direction compared to the outer bearing ring 36 and thus has an axial bearing play 32 .

Die beiden Lagerringe 35, 36 sind an sich bekannter Weise durch einen Lagerspalt 31 voneinander getrennt, der auch geschmiert ausgebildet sein kann.The two bearing rings 35, 36 are separated from one another in a manner known per se by a bearing gap 31, which can also be lubricated.

Der innere Lagerring 35 ist somit mit einem Festsitz 29 unverschiebbar mit dem Aussenumfang des vertikalen Ansatzes 9d verbunden.The inner bearing ring 35 is thus immovably connected with a tight fit 29 to the outer circumference of the vertical shoulder 9d.

Die Figur 5 zeigt als weiteres, nicht erfindungsgemäßes Ausführungsbeispiel, dass das in den Pfeilrichtungen 42 wirkende axiale Bewegungsspiel der Mittelsäule 3 auch von zwei über Verzahnungen miteinander verbundene Zylinderhülsen 37, 38 aufgenommen werden kann.FIG. 5 shows, as a further exemplary embodiment not according to the invention, that the axial play of movement of the center column 3 acting in the directions of the arrow 42 can also be absorbed by two cylinder sleeves 37, 38 connected to one another via toothing.

Die innere Zylinderhülse 38 ist mit ihrem Innenumfang drehfest mit dem Außenumfang der Mittelsäule 3 verbunden und weist an ihrem Außenumfang eine in Längsrichtung ausgerichtete Verzahnung 39 auf.The inner cylinder sleeve 38 is non-rotatably connected with its inner circumference to the outer circumference of the center column 3 and has teeth 39 aligned in the longitudinal direction on its outer circumference.

In diese Verzahnung 39 greift die komplementäre Verzahnung 41 einer äußeren Zylinderhülse 37 ein. Die beiden Zylinderhülsen sind somit über ihre ineinander greifenden Verzahnungen 39, 41 axial zueinander verschiebbar, können jedoch das Drehmoment auf die Mittelsäule 3 übertragen.The complementary toothing 41 of an outer cylinder sleeve 37 engages in this toothing 39 . The two cylinder sleeves can thus be displaced axially with respect to one another via their meshing teeth 39 , 41 , but can transmit the torque to the center column 3 .

Bei der Verwirklichung der Erfindung sind noch die weiteren, im Folgenden beschriebenen Merkmale vorteilhaft:

  1. 1. Der Elektromotor ist als hochpoliger permanentmagneterregter Synchronmotor mit konzentrierten Wicklungen ausgestaltet.
  2. 2. Der Lagegeber zur Kommutierung des Elektromotors ist als Sinus/Cosinus-Geber mit einer der Polpaarzahl des Elektromotors entsprechenden Anzahl Perioden pro Umdrehung ausgestaltet und weist optional eine zusätzliche Sinus/Cosinus-Spur mit einer Periode pro Umdrehung auf.
  3. 3. Die Bremseinrichtung, welche die Abbremsung des rotierenden Teils der Karusselltür ganz oder teilweise übernehmen kann, ist in der Antriebseinheit 1 integriert, und gewährleistet bei einem Notstopp eine grössere Bremswirkung, als sie mit dem Elektromotor alleine erzielt werden könnte.
  4. 4. Die Verriegelungseinrichtung, mit welcher die Drehbewegung des rotierenden Teils der Karusselltür blockiert werden kann, ist in der Antriebseinheit 1 integriert, und gewährleistet, dass eine Drehbewegung ohne eine zusätzliche Vorrichtung ausserhalb der Antriebseinheit blockiert werden kann.
When implementing the invention, the additional features described below are also advantageous:
  1. 1. The electric motor is designed as a high-pole permanent-magnet synchronous motor with concentrated windings.
  2. 2. The position encoder for commutation of the electric motor is designed as a sine/cosine encoder with a number of periods per revolution corresponding to the number of pole pairs of the electric motor and optionally has an additional sine/cosine track with one period per revolution.
  3. 3. The braking device, which can take over the braking of the rotating part of the revolving door in whole or in part, is integrated in the drive unit 1 and ensures a greater braking effect in the event of an emergency stop than could be achieved with the electric motor alone.
  4. 4. The locking device, with which the rotary movement of the rotating part of the revolving door can be blocked, is integrated in the drive unit 1 and ensures that a rotary movement can be blocked without an additional device outside the drive unit.

Bezeichnungslistedesignation list

  • 1. Antriebseinheit1. Drive unit
  • 2. Lagerstelle unterhalb des rotierenden Teils der Karusselltür2. Bearing point below the rotating part of the revolving door
  • 3. Mittelsäule3. Center Column
  • 4. Türflügel4. Door leaf
  • 5. Trommelwand5. Drum Wall
  • 6. Boden6. floor
  • 7. Decke7. Blanket
  • 8. feststehender Teil der Antriebseinheit8. fixed part of the drive unit
  • 8a. Basisscheibe8a. base disc
  • 8b. Ansatz außen8b. approach outside
  • 8d. Ansatz innen8d. approach inside
  • 9. rotierender Teil der Antriebseinheit9. rotating part of the drive unit
  • 9a. Basisscheibe9a. base disc
  • 9b. Ansatz außen9b. approach outside
  • 9c. Ansatz mitte9c. approach middle
  • 9d. Ansatz innen9d. approach inside
  • 10. Lager in der Antriebseinheit10. Bearings in the drive unit
  • 11. Lossitz des Lagers in der Antriebseinheit11. Bearing loose in drive unit
  • 12. Vorrichtung zur starren Befestigung der Mittelsäule am rotierenden Teil der Antriebseinheit12. Device for rigid attachment of the center column to the rotating part of the drive unit
  • 13. Statorzahn des hochpoligen Synchronmotors mit konzentrierten Wicklungen13. Stator tooth of high-pole synchronous motor with concentrated windings
  • 14. Wicklung um Statorzahn des hochpoligen Synchronmotors mit konzentrierten Wicklungen14. Winding around stator tooth of high-pole synchronous motor with concentrated windings
  • 15. Permanentmagnet des hochpoligen Synchronmotors mit konzentrierten Wicklungen15. Permanent magnet of high-pole synchronous motor with concentrated windings
  • 16. Lesevorrichtung des Sinus/Cosinus-Gebers16. Reading device of the sine/cosine encoder
  • 17. Spur des Sinus/Cosinus-Gebers17. Trace of the sine/cosine encoder
  • 18. Bremseinrichtung18. Braking device
  • 19. Bremsbelag der Bremseinrichtung19. Brake lining of the braking device
  • 20. Verriegelungseinrichtung20. Locking device
  • 21. Stössel der Verriegelungseinrichtung21. Plunger of the locking device
  • 22. Schlitz zur Aufnahme des Stössels der Verriegelungseinrichtung22. Slot for receiving the plunger of the locking device
  • 23. axiales Spiel23. axial play
  • 24. Rillenkugellager24. Deep groove ball bearing
  • 25. Lagerring (innen)25. Bearing ring (inside)
  • 26. Lagerring (außen)26. Bearing ring (outside)
  • 27. Verschiebungsfläche27. Displacement Surface
  • 28. Pfeilrichtung28. Direction of arrow
  • 29. Festsitz29. Fixed seat
  • 30. Gleitlager30. Plain bearing
  • 31. Lagerspalt31. Bearing Gap
  • 32. Lagerspiel32. Bearing clearance
  • 33. Seegerring33. Circlip
  • 34. Seegerring34. Circlip
  • 35. Lagerring (innen)35. Bearing ring (inside)
  • 36. Lagerring (außen)36. Bearing ring (outside)
  • 37. Zylinderhülse (außen)37. Cylinder sleeve (outside)
  • 38. Zylinderhülse (innen)38. Cylinder sleeve (inside)
  • 39.Verzahnung (innen) von 3839.teeth (inside) of 38
  • 40. Schweissverbindung40. Welded joint
  • 41. Verzahnung (außen) von 3741. Serration (outside) of 37
  • 42. axiales Bewegungsspiel42. axial play
  • 43. Spannschraube43. Turnbuckle
  • 44. Grundkörper44. Main body
  • 45. Kegelhülse45. Cone sleeve

Claims (5)

  1. Drive unit (1) for a revolving door which is attached above the door (4) rotating about the central axis of the revolving door, comprising an upper bearing (2) of the part of the revolving door rotating about the central axis in which a bearing (10) of the drive unit (1) which is close to the ceiling is located to receive the central middle column (3) and further comprising a rotating part (9) of the drive unit (1), a fixed part (8) of the drive unit (1) and an electric motor, the rotor of which is arranged coaxially to the central axis and is connected without a gear to the doors (4) rotating about the central axis, wherein to receive axial clearance of the middle column, the bearing (10) of the middle column (3) which is close to the ceiling is designed to be displaceable in axial direction (23, 32) of the middle column (3), or in that the middle column (3) is designed to be displaceable with respect to the bearing (10) which is close to the ceiling, characterised in that the bearing (10) which is close to the ceiling is designed as a roller bearing (24), the inner bearing ring (25) of which is designed to be displaceable in axial direction with respect to an inner shoulder (9d) of the rotating part of the drive unit and in that the inner circumference of the inner bearing ring (25) is designed as a loose seat (11) with respect to the outer circumference of the inner shoulder (9d) of the rotating part of the drive unit.
  2. Drive unit (1) for a revolving door which is attached above the door (4) rotating about the central axis of the revolving door, comprising an upper bearing (2) of the part of the revolving door rotating about the central axis in which a bearing (10) of the drive unit (1) which is close to the ceiling is located to receive the central middle column (3) and further comprising a rotating part (9) of the drive unit (1), a fixed part (8) of the drive unit (1) and an electric motor, the rotor of which is arranged coaxially to the central axis and is connected without a gear to the doors (4) rotating about the central axis, wherein to receive axial clearance of the middle column, the bearing (10) of the middle column (3) which is close to the ceiling is designed to be displaceable in axial direction (23, 32) of the middle column (3), or in that the middle column (3) is designed to be displaceable with respect to the bearing (10) which is close to the ceiling, characterised in that the bearing (10) which is close to the ceiling is designed as a roller bearing (24), the outer bearing ring (26) of which is designed to be displaceable in axial direction with respect to an inner shoulder (8d) of the fixed part of the drive unit and in that the outer circumference of the outer bearing ring (26) is designed as a loose seat (11) with respect to the inner circumference of the inner shoulder (8d) of the fixed part of the drive unit.
  3. Drive unit according to claim 1 or 2, characterised in that the roller bearing is designed as a single-row or multiple-row deep groove ball bearing, cylindrical roller bearing, self-aligning roller bearing or spherical roller bearing or as a double-row angular ball bearing.
  4. Drive unit according to one of claims 1 to 3, characterised in that the middle column (3) is rigidly connected to the rotating part (9) of the drive unit (1) by means of a device (12), and in that the device (12) consists of a base body (44) with a conical bore and a taper sleeve (45) which are braced against one another by means of tightening screws (43), and in that the tightening screws (43) are supported on the taper sleeve (45) by their head and are screwed into the base body (44).
  5. Drive unit according to one of claims 1 to 4, characterised in that the electric motor is a high-contact permanent magnet-energised synchronous motor with concentric windings.
EP15003685.3A 2015-06-24 2015-12-29 Drive unit for an automatic revolving door Active EP3109390B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015008133.0A DE102015008133A1 (en) 2015-06-24 2015-06-24 Drive unit for an automatic revolving door

Publications (3)

Publication Number Publication Date
EP3109390A1 EP3109390A1 (en) 2016-12-28
EP3109390B1 EP3109390B1 (en) 2019-09-04
EP3109390B2 true EP3109390B2 (en) 2022-06-08

Family

ID=55129377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15003685.3A Active EP3109390B2 (en) 2015-06-24 2015-12-29 Drive unit for an automatic revolving door

Country Status (2)

Country Link
EP (1) EP3109390B2 (en)
DE (1) DE102015008133A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111809999A (en) * 2020-08-31 2020-10-23 裕克施乐塑料制品（太仓）有限公司 Rotary actuator and intelligent door and window with same

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DE102004033304B4 (en) † 2004-07-08 2008-04-17 Dorma Gmbh + Co. Kg revolving door
DE102006059947A1 (en) † 2006-12-19 2008-06-26 Schaeffler Kg Tandem bearing assembly with a device to compensate for temperature-induced bearing stresses
DE102012011048B4 (en) † 2012-06-02 2014-01-02 Diehl Comfort Modules GmbH Hinge device and a door system with the hinge device
DE102013000421A1 (en) † 2013-01-14 2014-07-17 Dorma Gmbh & Co. Kg Drive unit for a revolving door in a flat. disk-shaped design

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DE9319807U1 (en) 1993-12-23 1994-09-15 Dorma Gmbh + Co. Kg, 58256 Ennepetal Revolving revolving door
DE4425047A1 (en) 1994-07-15 1996-01-18 Geze Gmbh & Co Revolving door of which wings are driven by several motors
DE19711460A1 (en) * 1996-03-20 1997-11-06 Dorma Gmbh & Co Kg Revolving door with electric motor, gear and connected, driven rotary device
DE19734398B4 (en) 1997-08-10 2007-04-05 Geze Gmbh revolving door
DE102010024108A1 (en) 2010-06-17 2011-12-22 Dorma Gmbh + Co. Kg Karuselltür
DE102013000417A1 (en) * 2013-01-14 2014-07-17 Dorma Gmbh & Co. Kg Drive unit, in particular for a revolving door, with an electronically commutated Vielpolmotor
DE102013000416B4 (en) 2013-01-14 2016-10-06 Dorma Deutschland Gmbh Method for arranging a drive unit in a revolving door
DE102013000423B3 (en) 2013-01-14 2014-03-13 Dorma Gmbh & Co. Kg Revolving door with a drive unit arranged on a glass ceiling element
DE102013000419A1 (en) 2013-01-14 2014-07-17 Dorma Gmbh & Co. Kg Method for arranging a drive unit on a ceiling element of a revolving door
DE102013000422B4 (en) 2013-01-14 2021-03-25 Dormakaba Deutschland Gmbh Revolving door with a floor-mounted drive unit
DE102013000420A1 (en) 2013-01-14 2014-07-17 Dorma Gmbh & Co. Kg Drive unit for a revolving door with an integrated blocking and / or braking device
EP3034761B1 (en) * 2014-12-17 2018-08-15 dormakaba Deutschland GmbH Revolving door

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004033304B4 (en) † 2004-07-08 2008-04-17 Dorma Gmbh + Co. Kg revolving door
DE102006059947A1 (en) † 2006-12-19 2008-06-26 Schaeffler Kg Tandem bearing assembly with a device to compensate for temperature-induced bearing stresses
DE102012011048B4 (en) † 2012-06-02 2014-01-02 Diehl Comfort Modules GmbH Hinge device and a door system with the hinge device
DE102013000421A1 (en) † 2013-01-14 2014-07-17 Dorma Gmbh & Co. Kg Drive unit for a revolving door in a flat. disk-shaped design

Also Published As

Publication number Publication date
DE102015008133A1 (en) 2016-12-29
EP3109390A1 (en) 2016-12-28
EP3109390B1 (en) 2019-09-04

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