WO1999037570A2 - Ascenseur - Google Patents

Ascenseur Download PDF

Info

Publication number
WO1999037570A2
WO1999037570A2 PCT/DE1999/000165 DE9900165W WO9937570A2 WO 1999037570 A2 WO1999037570 A2 WO 1999037570A2 DE 9900165 W DE9900165 W DE 9900165W WO 9937570 A2 WO9937570 A2 WO 9937570A2
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
elevator according
elevator
axis
drive
Prior art date
Application number
PCT/DE1999/000165
Other languages
German (de)
English (en)
Other versions
WO1999037570A3 (fr
Inventor
Frank Thielow
Original Assignee
Frank Thielow
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 Frank Thielow filed Critical Frank Thielow
Priority to EP99904727A priority Critical patent/EP0973687A2/fr
Priority to DE19980064T priority patent/DE19980064D2/de
Priority to AU25120/99A priority patent/AU2512099A/en
Publication of WO1999037570A2 publication Critical patent/WO1999037570A2/fr
Publication of WO1999037570A3 publication Critical patent/WO1999037570A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/022—Guideways; Guides with a special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable

Definitions

  • the invention relates to an elevator according to the preamble of claim 1.
  • elevators In addition to elevators in which an elevator car is guided in a closed elevator shaft, there are also elevators in which a pulpit or a cabin is guided on a guide rail permanently installed in the building or else on a free-standing support column.
  • the drive devices used up to now use cable or cable systems that are pulled by a motor located above the elevator.
  • the object of the invention is therefore to propose a drive for elevators that requires less space, in particular even with small elevator systems.
  • This object is achieved in that a spindle unit is provided in the interior of the support column.
  • a spindle can be accommodated completely inside a support column, so that at most a drive motor, for example on the end face of the support column, is visible from the outside.
  • a hollow spindle that is rotatably mounted on an axis.
  • the hollow spindle is preferably mounted several times in the axial direction at different points, so that the central axis stiffens the hollow spindle.
  • the spindle is constructed from at least two spindle parts which can be coupled at the end. This has the advantage that longer spindles, for example bridging two or more floors of a building, can be manufactured and handled in handy parts.
  • the coupling between two such spindle parts is preferably carried out with the aid of a polygonal wave profile, by means of which an end region of a spindle part is to be inserted into the corresponding end region of the spindle part to be coupled.
  • a polygonal wave profile With the help of such a polygon profile, an exact version with good power transmission is possible.
  • end gears so-called Hirth gears or circumferential serrations, would also be advantageous.
  • Such a spur toothing is preferably provided with a pitch which corresponds to an integral multiple of the number of thread turns of the spindle.
  • the joining of two spindle parts is particularly simplified in this way, since no special angular orientation to one another has to be observed. By coordinating the pitch of the spur toothing with the number of threads, there is an uninterrupted passage of the spindle thread each time two threaded parts are joined together on the end face.
  • a radial bearing is preferably arranged at such a coupling point.
  • a radial bearing can be clamped by appropriate shaping of the spindle parts or the spindle axis located inside without additional securing elements such as sleeves, rings, etc.
  • the spindle is stabilized at its coupling point by such a bearing.
  • Such a radial bearing can be designed, for example, as a plain bearing or a ball bearing.
  • a divisible spindle axis is also advantageously provided. This also gives the above-mentioned advantages in manufacture and handling, in particular also in the assembly of an elevator according to the invention, for the spindle axis.
  • the parts of the spindle axis can be connected to one another, for example, by a screw on the end face and, in a special embodiment, fix the associated radial bearing with the screw.
  • the connection of individual parts of the spindle axis can also be carried out via a connecting sleeve into which the parts of the axis to be connected are screwed on both sides.
  • the spindle unit is clamped in order to ensure that the spindle does not deviate from the desired straight axis orientation.
  • Such a pretension is preferably achieved in that the central axis is pretensioned in the case of a hollow spindle which is mounted on an axis.
  • Such a preload can also be used to give the entire support column increased stability.
  • a double spindle nut is provided in a spindle drive of the type described, so that in the event of a defect in the first spindle nut, the second spindle nut carries the elevator car or pulpit.
  • a spindle as an elevator drive offers remarkable advantages, especially from a safety point of view. B. a self-locking and the above-mentioned low-cost protection with the help of a second spindle nut is possible.
  • a damping element is provided between the spindle axis and the hollow spindle. This damping element is able to dampen the vibrations occurring during operation, in particular at high speeds, so that there is a reduction in noise.
  • the damping element is also designed as a compensating element.
  • a damping element can be designed, for example, in the form of an elastic ring in the region of the connection points between individual sections of the axis and / or the hollow spindle.
  • the elevator car is preferably guided in the interior of the support column, for example on air bearings, in a sliding or rolling manner with roller bearings.
  • Air bearings would offer the advantage of extremely quiet elevator operation.
  • a surveillance camera and / or other surveillance sensors are provided in order to observe at least the space below the elevator pulpit or cabin, so that the operator, who operates a handwheel or crank drive, for example, can stop the elevator at any time if there is a person or other objects underneath the elevator.
  • FIG. 2 shows a cross section through a device according to FIG. 5
  • 3 shows a longitudinal section through the coupling point of a separable spindle
  • Fig. 4 is a longitudinal section through a spindle according to the invention to illustrate the connection of sections of an axis and sections of a hollow spindle and
  • Fig. 5 is an enlarged section of the connection and storage of two part spindles.
  • the drive device 1 comprises a support column 2, in which a filler material 3, for example concrete, has hardened between an inner shell 4 and an outer shell 5.
  • An elevator car 9 is guided by slide bearings 10 on the inner shell 4 of the support column 2.
  • the carriage 10 is suspended from a hollow spindle 14 via a first spindle nut 11.
  • a second spindle nut 12 is connected in a rotationally fixed manner to the first spindle nut 11 via sliding pins 13, but is movable in the axial direction with respect to the first spindle nut 11.
  • the spindle 14 is mounted on an axis 19 via a plurality of radial bearings 15, 16, 17, 18.
  • the radial bearings 15, 16, 17, 18 can for example be designed as roller or slide bearings.
  • An axial bearing 20 supports the spindle 14 on the base plate 7. Via a ring gear 21, the spindle can be driven in a manner not shown by a motor located outside or inside the support column 2.
  • the axis 19 is in turn clamped between the cover plate 8 and the base plate 7. On the one hand, this increases the overall stability of the support column 2, on the other hand, this ensures an exact alignment of the axis 19 and thus also the rotating spindle 14 mounted thereon, despite a large spindle length that can extend over several floors of a building.
  • This variant of an elevator drive combines the advantages of a spindle, eg. B. the self-locking, securing with a second spindle nut, etc., with an elevator, for whose application spindle drives are not yet known due to the problems with long distances and comparatively high speed.
  • the constructive measure of clamping the axis 19 on the one hand enables a spindle drive to be implemented at a relatively high speed despite the large stroke length, the axis 19 also being usable as a tensioning rod for the support column 2 and thereby giving it greater stability.
  • the sliding carriage 9 sags only minimally until it rests with its load on the second spindle nut 12.
  • the distance between the two spindle nuts 11, 12 may need to be monitored by sensors in order to initiate appropriate repair measures in the event of a defect in the first spindle nut 11.
  • a spindle drive according to FIGS. 1 and 2 can be combined with other types of drive in almost any way.
  • an additional tension element 22 is drawn in, on which any external drive device can act and thus support the spindle drive.
  • the spindle 14 comprises a spindle axis 15, which consists of two partial axes 23, 24.
  • the partial axis 23 is with a Provided threaded bore 25 into which the partial axis 24 is screwed with a threaded portion 26.
  • the entire axis can also consist of more than just two partial axes.
  • the partial axis 23 and the partial axis 24 are provided with stop faces 27, 28, between which a radial bearing 29 is caught in the axial direction. Between the threaded section 26 and the stop surface 28, a cylindrical bearing section 30 of the partial axis 24 is provided, on which the radial bearing 29 is fixed in the radial direction with an exact fit and centrally.
  • the spindle 14 further comprises a hollow spindle 31 which comprises two part spindles 32, 33.
  • the partial spindle 32 is provided with an end recess 34 into which a correspondingly shaped extension 35 of the partial spindle 33 is to be inserted with a precise fit.
  • the spindle 14 can also consist of more than just two part spindles.
  • the peripheral line of the recess 34 or of the extension 35 is not visible in a preferred embodiment as a so-called polygonal wave profile.
  • FIG 3 shows one possibility of how a split hollow shaft spindle can be coupled at its seams.
  • the incline of the spindle 14 is not interrupted in this case, since the partial spindles 32, 33 can be joined to one another with a precise fit.
  • the bearing by means of the radial bearing 29 directly at the coupling point ensures good stability of the spindle 14 at the coupling point, wherein the coupling of the two partial axes 23, 24 can also be used to fix the radial bearing 29.
  • hollow spindle 31 offers advantages, particularly in the case of large spindle lengths and high speeds, since one Hollow spindle has a significantly smaller moment of inertia compared to solid material.
  • an end toothing (not shown in more detail) can also be provided between the two partial spindles 32, 33.
  • the hollow spindle 31 consisting of the two partial spindles 32, 33 is shown in a further embodiment.
  • the two partial spindles 32, 33 are non-positively connected to one another at their connection point 36 via a spur gear not shown.
  • the division of this toothing is preferably selected as a full-line multiple of the number of threads, so that the angular orientation with which the two partial spindles 32, 33 are joined together is irrelevant during assembly.
  • a centering ring 37 centers the part spindles 32, 33 when they are joined together and lies in an exact fit in two corresponding recesses 38, 39 of the part spindles 32, 33.
  • the centering ring 37 is caught in a groove 40 of a damping ring 41, for example made of hard rubber.
  • the damping ring 41 in turn lies in an outer groove 42 of a retaining ring 43, which carries a bearing bush 44, which is held with an annular projection 45 in a corresponding inner groove 46 of the retaining ring 43.
  • the bearing bush 44 provides a sliding bearing on the partial axis 24 of the axis 19.
  • the damping ring 41 not only dampens any vibrations during the operation of the spindle, but also ensures compensation for possible misalignments when joining the partial spindles 32, 33.
  • the partial axes 23, 24 are in the present case connected via an external thread 47, 48 at the end and a connecting sleeve 49, which has an internal thread 50.
  • the threads 47, 48, 50 can be formed into the respective component, which increases the resilience of the material compared to a cut thread.
  • an additional traction drive relieves a spindle at high speeds, which reduces the heat generated by the spindle.
  • the elements of the drive devices which penetrate the entire support column in the longitudinal direction can also be used to stabilize or stiffen the support column, for example by bracing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un ascenseur comportant une cage verticale (2) le long de laquelle est guidé(e) une cabine ou un habitacle d'ascenseur. Selon l'invention, il est prévu de monter le dispositif d'entraînement de manière qu'il occupe le moins de place possible. A cet effet, un dispositif d'entraînement intégré au moins en partie dans la cage verticale (2) comprend une tige (14).
PCT/DE1999/000165 1998-01-24 1999-01-22 Ascenseur WO1999037570A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99904727A EP0973687A2 (fr) 1998-01-24 1999-01-22 Ascenseur
DE19980064T DE19980064D2 (de) 1998-01-24 1999-01-22 Aufzug
AU25120/99A AU2512099A (en) 1998-01-24 1999-01-22 Elevator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19802721 1998-01-24
DE19802721.4 1998-01-24

Publications (2)

Publication Number Publication Date
WO1999037570A2 true WO1999037570A2 (fr) 1999-07-29
WO1999037570A3 WO1999037570A3 (fr) 1999-10-07

Family

ID=7855605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/000165 WO1999037570A2 (fr) 1998-01-24 1999-01-22 Ascenseur

Country Status (4)

Country Link
EP (1) EP0973687A2 (fr)
AU (1) AU2512099A (fr)
DE (2) DE19980064D2 (fr)
WO (1) WO1999037570A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021884A1 (de) * 2000-05-05 2001-11-08 Frank Thielow Aufzug mit einer Hohlspindel
DE102004053386A1 (de) * 2004-11-02 2006-05-18 Hetek Baumann Hebetechnik Gmbh Maschine mit Einsäulenführung zum Heben und/oder Fortbewegen von Personen, insbesondere von Menschen mit eingeschränkter Beweglichkeit
DE102019115501B4 (de) * 2019-06-07 2022-02-03 Precitec Gmbh & Co. Kg Spindel für einen Gewindetrieb und Gewindetrieb mit derselben

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051923A (en) * 1976-10-20 1977-10-04 Lionel Blanchette Cableless cage elevator
DE19618080A1 (de) * 1996-05-06 1997-11-13 Peter Dr Ing Fischoetter Spindelaufzug

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051923A (en) * 1976-10-20 1977-10-04 Lionel Blanchette Cableless cage elevator
DE19618080A1 (de) * 1996-05-06 1997-11-13 Peter Dr Ing Fischoetter Spindelaufzug

Also Published As

Publication number Publication date
AU2512099A (en) 1999-08-09
DE19980064D2 (de) 2000-06-15
WO1999037570A3 (fr) 1999-10-07
DE19902390A1 (de) 1999-09-09
EP0973687A2 (fr) 2000-01-26

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