EP0077890A2 - Palan électrique à chaîne - Google Patents

Palan électrique à chaîne Download PDF

Info

Publication number
EP0077890A2
EP0077890A2 EP82107167A EP82107167A EP0077890A2 EP 0077890 A2 EP0077890 A2 EP 0077890A2 EP 82107167 A EP82107167 A EP 82107167A EP 82107167 A EP82107167 A EP 82107167A EP 0077890 A2 EP0077890 A2 EP 0077890A2
Authority
EP
European Patent Office
Prior art keywords
gear
housing
chain hoist
electric
motor
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.)
Granted
Application number
EP82107167A
Other languages
German (de)
English (en)
Other versions
EP0077890A3 (en
EP0077890B1 (fr
Inventor
Rudolf Ing.(Grad.) Rapp
Eugen Ing.(Grad.) Hornikel
Helmut Dipl.-Ing. Stiegler
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.)
R Stahl & Co Elektrozugwerk GmbH
Original Assignee
R Stahl & Co Elektrozugwerk GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by R Stahl & Co Elektrozugwerk GmbH filed Critical R Stahl & Co Elektrozugwerk GmbH
Priority to AT82107167T priority Critical patent/ATE17699T1/de
Publication of EP0077890A2 publication Critical patent/EP0077890A2/fr
Publication of EP0077890A3 publication Critical patent/EP0077890A3/de
Application granted granted Critical
Publication of EP0077890B1 publication Critical patent/EP0077890B1/fr
Expired 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
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B66D3/20—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing
    • B66D3/22—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing with variable-speed gearings between driving motor and drum or barrel

Definitions

  • the invention relates to an electric chain hoist, the reduction gear between the output pinion of the electric motor and the axially parallel sprocket, possibly containing an overload slip clutch, is arranged in a gearbox housing, which is connected to the electric motor to a unit having a suspension or fastening device.
  • this embodiment requires a motor construction which is specially matched to it, which means that economical production is only possible for one series production with very large quantities is possible because no standard motor can be used.
  • the overall height ie the dimension from the suspension to the hook mouth. at the highest hook position necessarily relatively large.
  • the gear housing and the motor housing are arranged separately from one another at an axial distance.
  • the sprocket is housed in the space between the two housings, as seen in the axial direction of the chain hoist. This makes the overall length of the chain hoist large.
  • either a separate coupling element, an additional pinion shaft or an abnormally long motor shaft are required in order to bridge the space between the motor and transmission housing.
  • the sprocket is arranged coaxially with the motor shaft, for which purpose the sprocket shaft is then designed as a hollow shaft.
  • the invention has for its object to provide a chain hoist, which is characterized by clever dimensions, both in terms of length and height and with simple cheaper.Manufacturing option can be equipped with different electric motors.
  • the electric chain hoist mentioned at the outset is characterized according to the invention in that the chain wheel is arranged in the immediate vicinity of the motor flange on one side of the output pinion and the gear of the first gear stage which engages with the output pinion is arranged on the opposite side of the output pinion and that the gear wheel with the output pinion and the sprocket with their axes lie in a common plane perpendicular to the motor shaft.
  • a particularly low overall height of the electric chain hoist is obtained when the sprocket with its axis lies in a common horizontal plane with the motor shaft, and the gearwheels with their axes can also lie in this common horizontal plane.
  • the sprocket is advantageously arranged within the area of the transmission housing and is enclosed on two sides by the transmission space.
  • the sprocket leads with it no increase in the very small overall height given by the gearbox dimensions.
  • the slip clutch is in the first gear stage, with the result that the clutch can be made very small, because the torque to be transmitted is small at this point.
  • the slip clutch is located inside the gearbox and can therefore be immersed in the oil bath there, which dissipates the heat generated when the slip clutch responds. Because there is at least one gear stage between the slip clutch and the sprocket, there is increased security against the fact that at full load after the slip clutch responds, because of the reduced friction factor due to sliding friction compared to static friction, the load drops because the sprocket has a driving moment In order to increase the efficiency of the intermediate gear stages, greater torque is required.
  • the gear shaft can carry at least one spring element which causes the bracing, the preload of which can be adjusted by axially displacing the gear shaft with respect to a stop fixed to the housing via a clutch disc that axially supports the gear wheel . So that this setting can be made from the outside, it is advantageous if the transmission shaft can be adjusted from the outside of the transmission housing.
  • the arrangement can be such that the transmission housing is at least partially enclosed by a housing part arranged in the continuation of the flange-mounted motor bearing plate and. electrical connection and control devices for the electric motor are arranged in the space next to the gear housing.
  • the end of the housing part can be closed off by a light hood, by means of which electrical control devices for the electric motor, which are optionally arranged on the gear housing, are covered.
  • a light hood by means of which electrical control devices for the electric motor, which are optionally arranged on the gear housing, are covered.
  • the gearbox housing and the simple gearbox cover no additional housing part is required to accommodate the electrical connection and control devices; rather, the above-mentioned hood is sufficient, which can be designed as a simple sheet metal hood.
  • the electric chain hoist has a gear housing 1 to which a suspension device in the form of a suspension eye 2 is fastened and which on two sides encloses a chain wheel 4 which is located in a common vertical plane with the suspension eye 2 and which has a spur gear reduction gear 3 arranged in the gear housing 1 is driven.
  • An electric motor 5 designed as a brake motor is flanged to the side of the transmission housing 1 by means of a flange 7 formed on its end plate 6 on the output side.
  • the motor shaft 8 carries an output pinion 9, which lies within the gear housing 1 and is in engagement with a gear 10 of the first gear stage. It runs parallel to the axis 11 of the chain wheel 4.
  • the chain wheel 4 lies on one side (in FIG. 2 on the right side) of the output pinion 9 and the motor shaft 8, while the gear wheel 10 of the first meshing with the output pinion 9 Gear stage on the opposite
  • the side of the output pinion 9 is arranged and both the output pinion 9 and the gear 10 and the sprocket 4 lie in a common plane which is perpendicular to the motor shaft 8 and is indicated at 11 in FIG. 1.
  • the gear 10 of the first gear stage is freely rotatable on a sleeve. 12 mounted, which in turn is non-rotatably and axially displaceable on a first gear shaft 13, and is formed with an annular flange 14 which is supported against a rolling bearing 15 which supports the gear shaft 13 in a corresponding bearing recess of the gear housing 1.
  • the ring flange 14 carries on its side facing the gear 10 a friction lining 16.
  • a clutch disc 17 is also rotatably and axially displaceably placed on the transmission shaft 13, which is also supported by a friction lining 18 against the gear 10 and against it by Disc springs 19 is pressed, which abut the end of an annular collar of the gear shaft 13.
  • the gear 10 thus forms, with the annular flange 14 and the clutch disc 17, a slip clutch, the transmittable maximum torque determined by the bias of the disc springs 1.
  • the gear shaft 13 is axially adjustable with respect to the roller bearing 15 which forms a stop fixed to the housing for the ring flange 14.
  • the gear shaft 13 is supported at the other end via a roller bearing 21 in a corresponding bearing recess of a gear cover 22 detachably placed on the gear housing 1, the arrangement being such that the roller bearing 21 has a pressure plate 22 and a corresponding threaded hole in the gear cover 22 screwed adjusting screw 24 axially is movable.
  • the adjusting screw 24 can be seen from the outside of the transmission, so that the overload torque of the slip clutch can be easily adjusted.
  • a gear 25 sits on the gear shaft 13 in a rotationally fixed manner, which meshes with a gear 26 of the second gear stage which is rotatably mounted at 27, 28 and which, in turn, has a gear 29 connected to it in a rotationally fixed manner and a gear wheel 4 wedged onto the shaft 30 of the chain wheel 4 31 of the third gear stage drives the chain wheel 4.
  • the chain indicated at 34 is anchored at the end of the gear housing 1. It is then, which is not further illustrated, guided over a bottle carrying the lifting hook and the chain wheel 4.
  • a small rope or tape drum can be used if necessary without changing the overall construction, because after loosening the screws 35, 36, the side chain guides 37, 38 can be easily removed, which is possible because the gear housing 1 the sprocket 4 only surrounds on two sides.
  • the electric motor 5 is a simple brake motor with an output pinion 9 and a flange 7 its end shield 6. In this embodiment, it can also be used for other purposes. It is also possible to mount a different electric motor 5 on the gear housing 1 in order to achieve a different lifting speed, without this requiring changes to the gear housing 1. This is illustrated in FIG. 4, where alternatively a differently designed electric motor 5a is indicated below the axis of the motor shaft 8.
  • the very low overall height of the gear unit and thus also of the gear unit housing 1 explained makes it possible to utilize the space above and below the gear unit housing 1 in the manner shown in particular in FIGS. 1 and 3.
  • the actual gear housing 1 is surrounded by a housing part 39 which follows the outline of the end shield 6 and continues this, which is closed at the end by a simple sheet metal hood 40 attached.
  • a free space 41 into which connecting lines and control lines 42 and 43 are introduced, which lead to the electric motor 5 or to holding and control devices which are accommodated in the space 41.
  • the equipment compartment containing it is closed off from the outside by the hood 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Gears, Cams (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Transmission Devices (AREA)
  • Dry Shavers And Clippers (AREA)
  • Amplifiers (AREA)
EP82107167A 1981-10-27 1982-08-07 Palan électrique à chaîne Expired EP0077890B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82107167T ATE17699T1 (de) 1981-10-27 1982-08-07 Elektrokettenzug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3142473 1981-10-27
DE19813142473 DE3142473A1 (de) 1981-10-27 1981-10-27 Elektrokettenzug

Publications (3)

Publication Number Publication Date
EP0077890A2 true EP0077890A2 (fr) 1983-05-04
EP0077890A3 EP0077890A3 (en) 1983-06-22
EP0077890B1 EP0077890B1 (fr) 1986-01-29

Family

ID=6144878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107167A Expired EP0077890B1 (fr) 1981-10-27 1982-08-07 Palan électrique à chaîne

Country Status (3)

Country Link
EP (1) EP0077890B1 (fr)
AT (1) ATE17699T1 (fr)
DE (1) DE3142473A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710332C1 (de) * 1987-03-28 1988-07-21 Stahl R Foerdertech Gmbh Elektrozug
EP0647586A1 (fr) * 1993-10-06 1995-04-12 ABUS Kransysteme GmbH & Co. KG. Dispositif d'entraînement pour un appareil de levage
EP0703185A3 (fr) * 1994-09-15 1996-12-27 Mannesmann Ag Palan électrique avec dispositif de commande de la vitesse
EP0758623A1 (fr) * 1995-08-14 1997-02-19 MANNESMANN Aktiengesellschaft Appareil de levage avec moyen de traction

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442791A1 (de) * 1984-11-23 1986-06-12 Wolfgang Dipl.-Ing. 8399 Ruhstorf Rösch Elektronischer aufzugantrieb
DE3911292A1 (de) * 1989-04-04 1990-10-11 Mannesmann Ag Kompakthebezeug
DE3939976C1 (en) * 1989-12-02 1991-04-11 Abus Werner Buehne Kg, 5270 Gummersbach, De Load lifter for small hoist - has impeller vane on DC motor shaft on end facing toward horn gear drive, in order to extract heat generated by motor
DE4408578C2 (de) * 1994-03-14 1999-12-30 Stahl R Foerdertech Gmbh Sicherheitskupplung für einen Kettenzug
DE19508833C2 (de) * 1994-03-14 1999-12-23 Stahl R Foerdertech Gmbh Kettenzug mit geschütztem Anschlußkasten
DE19810994C1 (de) * 1998-03-13 1999-08-19 Hoffmann Foerdertechnik Gmbh W Kettenhalterung für die Hubkette von Kettenzügen
DE10034950B4 (de) * 2000-07-13 2009-02-12 Hoffmann Fördertechnik GmbH Wurzen Kettenbefestigung für die Rundstahlkette von Kettenzügen

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR657252A (fr) * 1927-07-20 1929-05-21 Palan coaxial à commande électrique
US2022049A (en) * 1932-06-30 1935-11-26 Associated Electric Lab Inc Signaling apparatus
US2656150A (en) 1951-12-06 1953-10-20 Yale & Towne Mfg Co Hoist construction
GB741063A (en) 1952-10-17 1955-11-23 Demag Zug Gmbh Electric hoist
DE967900C (de) * 1952-10-18 1957-12-27 Demag Zug Gmbh Kleinsthebezeug
GB751023A (en) * 1954-01-21 1956-06-27 Columbus Mckinnon Chain Corp Improvements in or relating to hoists
US2969954A (en) * 1958-01-30 1961-01-31 Columbus Mckinnon Corp Electric hoist
GB915023A (en) 1959-06-24 1963-01-09 King Ltd Geo W Improvements in or relating to chain hoist pulley blocks
DE1209711B (de) * 1962-04-07 1966-01-27 Demag Zug Gmbh Kleinkettenflaschenzug mit Verschiebelaeufermotor
US3362685A (en) * 1965-05-18 1968-01-09 Paul R. Noye Chain hoist
FR92370E (fr) * 1966-11-22 1968-10-31 Birfield Eng Ltd Palan électrique
DE1431962A1 (de) * 1967-01-20 1969-05-29 Hoffmann & Co Kg Durch einen Elektromotor angetriebene Kettenwinde
JPS5227808Y2 (fr) * 1973-05-14 1977-06-24
US3971971A (en) * 1974-11-15 1976-07-27 Ingersoll-Rand Company Electric hoist control and braking system
JPS5842119B2 (ja) * 1976-04-02 1983-09-17 株式会社日立製作所 巻上機械用過負荷防止装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710332C1 (de) * 1987-03-28 1988-07-21 Stahl R Foerdertech Gmbh Elektrozug
EP0647586A1 (fr) * 1993-10-06 1995-04-12 ABUS Kransysteme GmbH & Co. KG. Dispositif d'entraînement pour un appareil de levage
EP0703185A3 (fr) * 1994-09-15 1996-12-27 Mannesmann Ag Palan électrique avec dispositif de commande de la vitesse
EP0758623A1 (fr) * 1995-08-14 1997-02-19 MANNESMANN Aktiengesellschaft Appareil de levage avec moyen de traction

Also Published As

Publication number Publication date
EP0077890A3 (en) 1983-06-22
DE3142473A1 (de) 1983-05-11
ATE17699T1 (de) 1986-02-15
EP0077890B1 (fr) 1986-01-29
DE3142473C2 (fr) 1988-01-07

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