EP1089935B1 - Hoist drive - Google Patents

Hoist drive Download PDF

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Publication number
EP1089935B1
EP1089935B1 EP99929286A EP99929286A EP1089935B1 EP 1089935 B1 EP1089935 B1 EP 1089935B1 EP 99929286 A EP99929286 A EP 99929286A EP 99929286 A EP99929286 A EP 99929286A EP 1089935 B1 EP1089935 B1 EP 1089935B1
Authority
EP
European Patent Office
Prior art keywords
drive
gear
drive unit
planetary
ring
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.)
Expired - Lifetime
Application number
EP99929286A
Other languages
German (de)
French (fr)
Other versions
EP1089935A1 (en
Inventor
Gerhard Buck
Egon Mann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP1089935A1 publication Critical patent/EP1089935A1/en
Application granted granted Critical
Publication of EP1089935B1 publication Critical patent/EP1089935B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation

Definitions

  • the invention relates to a drive for hoists, which is used for lifting loads.
  • Hoist drives z. B. used in lifts or winches.
  • the installation space z. B. in elevator shafts, especially the installation length for the drive and the radial space for the traction sheave are limited.
  • the installation length available for the individual hoist drive is generally limited by the elevator shaft and the maintenance space required therein. Since hoist drives can also be installed between the elevator shaft and the cabin, the radial installation space for the diameter of the traction sheave is limited, which therefore must not exceed a maximum value. Within these limits, the hoist drive with a mechanical reduction gear in the form of a planetary gear with a bearing for the traction sheave, a drive unit and a safety brake is to be accommodated.
  • a hoist drive is a compact drive unit that can be installed and serviced in a confined space. It should be possible to change the traction sheave without much effort.
  • a hoist drive is known from PCT / EP 95/03879, which is assembled from independent, removable units. These consist of a planetary gear with a traction sheave, a brake housing designed as a stand, in which a safety brake is housed, and a drive unit. With this hoist drive, the structure of the planetary gear has a disadvantageous effect on the overall length of the drive, since the drive pulley is mounted next to the planetary stages.
  • the safety brake is housed in a separate housing, which extends the overall length.
  • the invention has for its object a compact To create a hoist drive that is characterized by a short length, low cost, light weight and distinguishes a small number of components.
  • a stage with step planets is used for the required gear ratio of approximately 20, in which a higher gear ratio is additionally achieved by the planet carrier of the planetary stage being connected to the drive pulley.
  • the step with step planets can be helically toothed, which improves the vibration or noise behavior. If the toothing of the inner central wheel with the stepped planet has a simultaneous sequence of engagements, the vibration or noise behavior is further improved.
  • the teeth of the planetary stage can be designed as helical teeth, the geometry of which can be selected so that the planetary stage does not generate any axial forces that would have to be absorbed by the planet carrier. Toothing with straight-toothed wheels is also possible.
  • the bearing of the traction sheave is placed above the planetary stage, through which a further shortening is achieved, the raceway of the rollers of the bearing is the radially outer edge of the ring gear.
  • An optimal bearing design of the traction sheave bearing enables the bearing arrangement in the middle under the power line of the traction sheave.
  • the bearing can also be attached next to the planetary stage.
  • the outer ring of the bearing can be made in one piece, thereby reducing the number of parts, or in two parts.
  • the housing of the drive unit is designed with a stand that allows the hoist drive to be installed at the location provided, the mechanical transmission and the safety brake are each attached to the drive unit on one side. This eliminates the housing part with stand foot, which would surround the brake.
  • the ring surrounding the traction sheave bearing also serves as a support for the traction sheave. This enables a traction sheave to be changed without having to dismantle the gearbox. It is also possible to form the traction sheave in one piece with the ring, or to form the planet carrier, the ring and the traction sheave in one piece.
  • the single figure shows a cross section through a hoist drive 1.
  • the hoist drive 1 shown consists of a drive unit 2, to which a mechanical planetary gear 4 and a safety brake 11 are connected.
  • the ring gear 6 of the planetary gear 4 is connected in a rotationally fixed manner to the housing 8 of the drive unit 2 via a screw connection 7 and on the radially outer edge there is a bearing 9 which can be formed with a one-piece outer ring which is between a ring 10 and the rollers of the Bearing 9 is arranged.
  • the traction sheave 12 is arranged, which is rotatably connected to the planet carrier 13, which forms the outer boundary of the planetary gear 4.
  • the ring 10 and the traction sheave 12 can also be made in one piece.
  • the inner central wheel 14 of the planetary gear 4 is rotatably connected to the output shaft 15 of the drive unit 2.
  • the inner shaft 16 of the safety brake 11 is rotatably connected to the output shaft 15 of the drive unit 2.
  • the inner central wheel 14, the inner shaft 16 of the safety brake 11 and the output shaft 15 of the drive unit 2 can also be made in one piece.
  • the radially outer peripheral wall of the ring gear 6 is provided with a sealing ring 17 for liquid-sealing separation.
  • the radially inner peripheral wall of the housing 8 of the drive unit 2 on the side facing the planetary gear 4 is provided with a sealing ring 18 for the liquid-tight separation of the planetary gear 4 and the drive unit 2.
  • the stand base 3 is either connected in one piece to the drive unit 2 or attached to it.
  • the toothing of the planetary gear 4 is preferably designed as a helical toothing, the planets of which are designed as step planets 5.
  • the helical toothing of the stepped planet 5 can be designed such that the stepped planet 5 does not generate any external axial forces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Description

Die Erfindung bezieht sich auf einen Antrieb für Hebezeuge, welcher zum Heben von Lasten eingesetzt wird. Hebezeugantriebe werden z. B. in Aufzügen oder Seilwinden eingesetzt.The invention relates to a drive for hoists, which is used for lifting loads. Hoist drives z. B. used in lifts or winches.

Der Einbauraum z. B. in Aufzugsschächten, im besonderen die Einbaulänge für den Antrieb sowie der radiale Bauraum für die Treibscheibe, sind begrenzt.
Die für den einzelnen Hebezeugantrieb zur Verfügung stehende Einbaulänge wird in der Regel durch den Aufzugsschacht und den darin benötigten Wartungsraum begrenzt. Da Hebezeugantriebe auch zwischen Aufzugsschacht und Kabine eingebaut sein können ist der radiale Bauraum für den Durchmesser der Treibscheibe begrenzt, welche deshalb einen Maximalwert nicht übersteigen darf. Innerhalb dieser Begrenzungen soll der Hebezeugantrieb mit einem mechanischen Untersetzungsgetriebe in Form eines Planetengetriebes mit einer Lagerung für die Treibscheibe, einer Antriebseinheit und einer Sicherheitsbremse untergebracht werden.
Ein Hebezeugantrieb stellt eine kompakte Antriebseinheit dar, die auf engstem Raum installiert und auch gewartet werden kann. Ein Wechsel der Treibscheibe sollte ohne größeren Aufwand möglich sein.The installation space z. B. in elevator shafts, especially the installation length for the drive and the radial space for the traction sheave are limited.
The installation length available for the individual hoist drive is generally limited by the elevator shaft and the maintenance space required therein. Since hoist drives can also be installed between the elevator shaft and the cabin, the radial installation space for the diameter of the traction sheave is limited, which therefore must not exceed a maximum value. Within these limits, the hoist drive with a mechanical reduction gear in the form of a planetary gear with a bearing for the traction sheave, a drive unit and a safety brake is to be accommodated.
A hoist drive is a compact drive unit that can be installed and serviced in a confined space. It should be possible to change the traction sheave without much effort.

Aus der PCT/EP 95/03879 ist ein Hebezeugantrieb bekanntgeworden, der aus selbständigen, demontablen Einheiten zusammengefügt ist. Diese bestehen aus einem Plantetengetriebe mit einer Treibscheibe, einem als Ständer ausgebildeten Bremsgehäuse, in dem eine Sicherheitsbremse untergebracht ist, und aus einer Antriebseinheit.
Bei diesem Hebezeugantrieb wirkt sich der Aufbau des Planetengetriebes nachteilig auf die Baulänge des Antriebes aus, da die Lagerung der Treibscheibe neben den Planetenstufen angebracht ist.
Die Sicherheitsbremse ist in einem separaten Gehäuse untergebracht, welches die Baulänge zusätzlich verlängert.A hoist drive is known from PCT / EP 95/03879, which is assembled from independent, removable units. These consist of a planetary gear with a traction sheave, a brake housing designed as a stand, in which a safety brake is housed, and a drive unit.
With this hoist drive, the structure of the planetary gear has a disadvantageous effect on the overall length of the drive, since the drive pulley is mounted next to the planetary stages.
The safety brake is housed in a separate housing, which extends the overall length.

Der Erfindung liegt die Aufgabe zugrunde, einen kompakten Hebezeugantrieb zu schaffen, der sich durch eine kurze Baulänge, niedrige Kosten, ein geringes Gewicht und eine geringe Anzahl von Bauteilen auszeichnet.The invention has for its object a compact To create a hoist drive that is characterized by a short length, low cost, light weight and distinguishes a small number of components.

Dies wird gemäß der Erfindung dadurch erreicht, daß für die erforderliche Übersetzung von ca. 20 eine Stufe mit Stufenplaneten verwendet wird, bei der zusätzlich eine größere Übersetzung erreicht wird indem der Planetenträger der Planetenstufe mit der Treibscheibe verbunden ist. Durch die Verwendung einer Planetenstufe mit Stufenplaneten wird die Anzahl der Teile reduziert, welches sich durch eine geringere Anzahl von Zahneingriffen vorteilhaft auf den Wirkungsgrad auswirkt. Die Stufe mit Stufenplaneten kann schrägverzahnt sein, wodurch das Schwingungs- bzw. Geräuschverhalten verbessert wird. Wenn die Verzahnung des inneren Zentralrades mit dem Stufenplaneten eine gleichzeitige Eingriffsfolge aufweist, wird das Schwingungs- bzw. Geräuschverhalten noch verbessert. Die Verzahnung der Planetenstufe kann als Schrägverzahnung ausgeführt sein, deren Geometrie so gewählt werden kann, daß der Stufenplanet keine axialen Kräfte, welche vom Planetenträger aufgenommen werden müßten, erzeugt. Eine Verzahnung mit geradverzahnten Rädern ist ebenfalls möglich.
Die Lagerung der Treibscheibe wird über die Planetenstufe gestellt, durch welches eine weitere Verkürzung erreicht wird, die Laufbahn der Rollen der Lagerung ist hierbei die radial äußere Berandung des Hohlrades. Eine optimale Lagerauslegung der Treibscheibenlagerung ermöglicht die Lageranordnung mittig unter der Krafteileitung der Treibscheibe. Die Lagerung kann ebenfalls neben der Planetenstufe angebracht werden. Der Außenring der Lagerung kann einteilig, womit eine Reduzierung der Teile erreicht wird, oder zweiteilig ausgeführt sein.
Das Gehäuse der Antriebseinheit ist mit einem Ständer ausgeführt, welcher die Montage des Hebezeugantriebes am dafür vorgesehenen Ort erlaubt, das mechanische Getriebe und die Sicherheitsbremse sind jeweils an einer Seite an der Antriebseinheit angebaut. Dadurch entfällt das Gehäuseteil mit Ständerfuß, welches die Bremse umgeben würde. Der die Treibscheibenlagerung umgebende Ring dient gleichzeitig als Auflager für die Treibscheibe. Damit läßt sich ein Treibscheibenwechsel vornehmen, ohne das Getriebe demontieren zu müssen. Ebenfalls besteht die Möglichkeit die Treibscheibe mit dem Ring einstückig auszubilden, oder den Planetenträger, den Ring und die Treibscheibe einstückig auszubilden.This is achieved according to the invention in that a stage with step planets is used for the required gear ratio of approximately 20, in which a higher gear ratio is additionally achieved by the planet carrier of the planetary stage being connected to the drive pulley. By using a planetary step with step planets, the number of parts is reduced, which has a beneficial effect on the efficiency due to a smaller number of tooth engagements. The step with step planets can be helically toothed, which improves the vibration or noise behavior. If the toothing of the inner central wheel with the stepped planet has a simultaneous sequence of engagements, the vibration or noise behavior is further improved. The teeth of the planetary stage can be designed as helical teeth, the geometry of which can be selected so that the planetary stage does not generate any axial forces that would have to be absorbed by the planet carrier. Toothing with straight-toothed wheels is also possible.
The bearing of the traction sheave is placed above the planetary stage, through which a further shortening is achieved, the raceway of the rollers of the bearing is the radially outer edge of the ring gear. An optimal bearing design of the traction sheave bearing enables the bearing arrangement in the middle under the power line of the traction sheave. The bearing can also be attached next to the planetary stage. The outer ring of the bearing can be made in one piece, thereby reducing the number of parts, or in two parts.
The housing of the drive unit is designed with a stand that allows the hoist drive to be installed at the location provided, the mechanical transmission and the safety brake are each attached to the drive unit on one side. This eliminates the housing part with stand foot, which would surround the brake. The ring surrounding the traction sheave bearing also serves as a support for the traction sheave. This enables a traction sheave to be changed without having to dismantle the gearbox. It is also possible to form the traction sheave in one piece with the ring, or to form the planet carrier, the ring and the traction sheave in one piece.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt, welches nachfolgend näher erläutert wird.In the drawing is an embodiment of the invention shown, which is explained in more detail below becomes.

Die einzige Figur zeigt einen Querschnitt durch einen Hebezeugantrieb 1.
Der dargestellte Hebezeugantrieb 1 besteht aus einer Antriebseinheit 2, mit welcher einerseits ein mechanisches Planetengetriebe 4, und andererseits eine Sicherheitsbremse 11 verbunden ist. Das Hohlrad 6 des Planetengetriebe 4 ist über eine Schraubverbindung 7 mit dem Gehäuse 8 der Antriebseinheit 2 drehfest vebunden und an der radial äußeren Berandung befindet sich eine Lagerung 9, welche mit einen einstückigen Außenring ausgebildet sein kann, welcher zwischen einem Ring 10 und den Rollen des Lagers 9 angeordnet ist. Über dem Ring 10 ist die Treibscheibe 12 angeordnet, welche drehfest mit dem Planetenträger 13 verbunden ist, welcher die äußere Abgrenzung des Planetengetriebes 4 bildet. Der Ring 10 und die Treibscheibe 12 können auch einstückig ausgeführt sein. Das innere Zentralrad 14 des Planetentriebes 4 ist drehfest mit der Ausgangswelle 15 der Antriebseinheit 2 verbunden. Die innere Welle 16 der Sicherheitsbremse 11 ist drehfest mit der Ausgangswelle 15 des Antriebseinheit 2 verbunden. Das innere Zentralrad 14, die innere Welle 16 der Sicherheitsbremse 11 und die Ausgangswelle 15 des Antriebseinheit 2 können auch einstückig ausgeführt sein. Die radial äußeren Umfangswand des Hohlrad 6 ist mit einem Dichtring 17 zur flüssigkeitsdichtenden Trennung versehen. Die radial inneren Umfangswand des Gehäuses 8 der Antriebseinheit 2 auf der dem Planetengetriebe 4 zugewanten Seite, ist mit einem Dichtring 18 zur flüssigkeitsdichtenden Trennung von Planetengetriebe 4 und Antriebseinheit 2 versehen. Der Ständerfuß 3 ist entweder einstückig mit der Antriebseinheit 2 verbunden, oder an diese angebaut. Die Verzahnung des Planetengetriebes 4 ist vorzugsweise als Schrägverzahnung, dessen Planeten als Stufenplaneten 5 ausgebildet sind, ausgeführt. Die Schrägverzahnung der Stufenplaneten 5 kann dergestalt ausgelegt sein, daß die Stufenplaneten 5 keine äußeren Axialkräfte erzeugen. The single figure shows a cross section through a hoist drive 1.
The hoist drive 1 shown consists of a drive unit 2, to which a mechanical planetary gear 4 and a safety brake 11 are connected. The ring gear 6 of the planetary gear 4 is connected in a rotationally fixed manner to the housing 8 of the drive unit 2 via a screw connection 7 and on the radially outer edge there is a bearing 9 which can be formed with a one-piece outer ring which is between a ring 10 and the rollers of the Bearing 9 is arranged. Over the ring 10, the traction sheave 12 is arranged, which is rotatably connected to the planet carrier 13, which forms the outer boundary of the planetary gear 4. The ring 10 and the traction sheave 12 can also be made in one piece. The inner central wheel 14 of the planetary gear 4 is rotatably connected to the output shaft 15 of the drive unit 2. The inner shaft 16 of the safety brake 11 is rotatably connected to the output shaft 15 of the drive unit 2. The inner central wheel 14, the inner shaft 16 of the safety brake 11 and the output shaft 15 of the drive unit 2 can also be made in one piece. The radially outer peripheral wall of the ring gear 6 is provided with a sealing ring 17 for liquid-sealing separation. The radially inner peripheral wall of the housing 8 of the drive unit 2 on the side facing the planetary gear 4 is provided with a sealing ring 18 for the liquid-tight separation of the planetary gear 4 and the drive unit 2. The stand base 3 is either connected in one piece to the drive unit 2 or attached to it. The toothing of the planetary gear 4 is preferably designed as a helical toothing, the planets of which are designed as step planets 5. The helical toothing of the stepped planet 5 can be designed such that the stepped planet 5 does not generate any external axial forces.

Bezugszeichenreference numeral

11
HebezeugantriebElevator drive
22
Antriebseinheitdrive unit
33
StänderfußAdjustable Stand
44
Planetengetriebeplanetary gear
55
Stufenplanetenstep planets
66
Hohlradring gear
77
Schraubverbindungscrew
88th
Gehäusecasing
99
Lagerungstorage
1010
Ringring
1111
Sicherheitsbremsesafety brake
1212
Treibscheibetraction sheave
1313
Planetenträgerplanet carrier
1414
inneres Zentralradinner central wheel
1515
Ausgangswelleoutput shaft
1616
inere Welleinner wave
1717
Dichtringseal
1818
Dichtringseal

Claims (6)

  1. Elevator drive (1), composed of a drive unit (2), a safety brake (11) and a planetary gear (4) with an inner main gear (14), planets, a ring gear (6) and a planet carrier (13), a sheave (12) mounted to a planetary gear, a bearing (9) of the sheave and a column (3) for the mounting of an elevator drive (1),
    characterized in that the planetary gear (4) is a gear with stepped planets (5), whose ring gear (6) is non-rotationally connected to a housing (8) of a drive unit (2), whose inner main gear (14) is driven by an output shaft (15) of a drive unit (2), whose planet carrier (13) is non-rotationally linked to a sheave (12) and whose sheave (12) is supported on a ring gear (6) through a bearing (9).
  2. Elevator drive (1) according to claim 1,
    characterized in that a housing (8) of a drive unit (2) has a column (3) and that a safety brake (11) is non-rotationally linked to a housing (8) of a drive unit (2).
  3. Elevator drive (1) according to claim 1,
    characterized in that a housing (8) of a drive unit (2) has a sealing ring (18) on its radial inner circumferential wall of the side facing a planetary drive (4) for liquidproof separation of planetary drive (4) and drive unit (2).
  4. Elevator drive (1) according to claim 1,
    characterized in that the gears of a planetary gear (4) are helical gears whose design prevents axial forces of stepped planets (5).
  5. Elevator drive (1) according to claim 1,
    characterized in that a bearing (9) has a single-piece outer ring, the race of the rollers is on the radial outer edge of a ring gear (6).
  6. Elevator drive (1) according to claim 1,
    characterized in that the gears of the stepped planets (5) mesh with an inner main gear (14) and feature a simultaneous meshing sequence.
EP99929286A 1998-06-25 1999-06-19 Hoist drive Expired - Lifetime EP1089935B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19828213A DE19828213A1 (en) 1998-06-25 1998-06-25 Compact motor unit for lift
DE19828213 1998-06-25
PCT/EP1999/004262 WO1999067168A1 (en) 1998-06-25 1999-06-19 Hoist drive

Publications (2)

Publication Number Publication Date
EP1089935A1 EP1089935A1 (en) 2001-04-11
EP1089935B1 true EP1089935B1 (en) 2002-09-04

Family

ID=7871913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99929286A Expired - Lifetime EP1089935B1 (en) 1998-06-25 1999-06-19 Hoist drive

Country Status (6)

Country Link
EP (1) EP1089935B1 (en)
CN (1) CN1092134C (en)
AU (1) AU4613799A (en)
DE (2) DE19828213A1 (en)
ES (1) ES2179661T3 (en)
WO (1) WO1999067168A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10000221A1 (en) * 2000-01-05 2001-07-12 Bosch Gmbh Robert Regulator member for steering angle changes of motor vehicle wheels has meshing planet wheels and sun wheels with phased helix angles to generate axial force components
DE102004007789A1 (en) * 2004-02-18 2005-09-08 Daimlerchrysler Ag Toroid gear for a motor vehicle
US9567024B2 (en) 2015-04-27 2017-02-14 Timothy LARONDE Kickstand assembly having gear assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB194573A (en) * 1922-04-13 1923-03-15 Aylmer Augustus Liardet Improvements in and relating to hoisting gear
US1579483A (en) * 1923-09-06 1926-04-06 Thomas A Conlon Portable winch
FR32122E (en) * 1926-08-03 1927-09-10 Hoist hoist
US2255574A (en) * 1936-08-08 1941-09-09 Air Equipment Winch for use on board aircraft
US4162713A (en) * 1978-04-03 1979-07-31 Otis Engineering Corporation Planetary transmission with hydraulic engagement and disengagement
US5435209A (en) * 1992-06-26 1995-07-25 Wittur Aufzugteile Gmbh & Co. Drive unit for a hoisting apparatus, in particular for a passenger or freight elevator
DE4435849A1 (en) * 1994-10-07 1996-04-11 Zahnradfabrik Friedrichshafen Hoist drive

Also Published As

Publication number Publication date
DE19828213A1 (en) 1999-12-30
EP1089935A1 (en) 2001-04-11
CN1092134C (en) 2002-10-09
WO1999067168A1 (en) 1999-12-29
ES2179661T3 (en) 2003-01-16
AU4613799A (en) 2000-01-10
DE59902580D1 (en) 2002-10-10
CN1301233A (en) 2001-06-27

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