EP1020394B1 - Dispositif et méthode pour simplifier le remplacement des roulements sur un escalier ou trottoir roulant - Google Patents

Dispositif et méthode pour simplifier le remplacement des roulements sur un escalier ou trottoir roulant Download PDF

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Publication number
EP1020394B1
EP1020394B1 EP20000100341 EP00100341A EP1020394B1 EP 1020394 B1 EP1020394 B1 EP 1020394B1 EP 20000100341 EP20000100341 EP 20000100341 EP 00100341 A EP00100341 A EP 00100341A EP 1020394 B1 EP1020394 B1 EP 1020394B1
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EP
European Patent Office
Prior art keywords
subassembly
central axle
chainwheel
escalator
moving walkway
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
EP20000100341
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German (de)
English (en)
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EP1020394A1 (fr
Inventor
Robert Ulrich
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.)
Inventio AG
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Inventio AG
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Publication date
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Priority to EP20000100341 priority Critical patent/EP1020394B1/fr
Publication of EP1020394A1 publication Critical patent/EP1020394A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/026—Driving gear with a drive or carrying sprocket wheel located at end portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear

Definitions

  • the invention relates to escalators with revolving stage conveyor line for the transport of persons between different levels and moving walks with revolving plate conveyor line for horizontal passenger transport, consisting essentially of a support structure with side rails (balustrades), a step or plate conveyor line, guides in the support structure for this Feed line, two circumferential handrail bands and a drive station.
  • the drive station contains two sprockets for driving the long link chains of the conveyor line, which are driven by a geared motor via roller chain wheels and drive chains flanged onto them. These conveyor chain sprockets are connected by a common hollow shaft.
  • sprocket assembly In the center of each conveyor track sprocket roller bearings are pressed, sitting with their inner ring on a non-rotating central axis, the ends of which are fixed in screwed to the support structure axle beams.
  • the assembly described here will hereinafter be referred to as a "sprocket assembly”.
  • the life-lubricated bearings are characterized by the Operating forces heavily loaded and often moister, more corrosive Exposed environment. You usually have to in the course of Lifetime of passenger conveyor repeatedly replaced become.
  • escalators and moving walks requires the replacement of rolling bearings elaborate additional manipulations such as the separation of the conveyor string and the drive chains, the lifting out of the Sprocket assembly from the support structure and the Reassembly of dismantled and separated components.
  • An additional problem is that the moving walk during This time is not accessible as a staircase.
  • the rolling bearing exchange to the sprocket assembly of escalators and moving walkways be simplified considerably, in particular by the fact that the Feed line no longer separated and the sprocket assembly no longer lifted out of the supporting structure Need to become.
  • This is achieved by the supporting structure on both sides of the drive station auxiliary support at which the sprocket assembly on both sides by means of releasable compounds, such as. B. screw with spacers or socket pin connections, rigidly fixed can be.
  • This will allow you to work with the Support structure screwed central axle carrier, which is in Normal state access to the rolling bearings in the conveyor chain sprockets cover, remove and the rolling bearings to exchange according to a method according to the invention. This leaves an escalator during the rolling bearing exchange as a staircase accessible.
  • the rolling bearing replacement process proceeds as follows: First, the long link chains of the conveyor string are attached to the support structure near the drive station by means of conventional chain locking devices so that the drive station is relieved of the chain hoist. This is followed by the above-described fixation of the sprocket assembly relative to the support structure and the removal of the central axle. In order to disassemble the now visible mounted in the right-side conveyor track sprocket roller bearing, the central axis of the sprocket assembly with the help of a mounted on the left conveyor sprocket spindle extractor is pulled so far axially to the left that the axle end the inner ring of the right side to be removed Rolling bearing leaves.
  • Fig. 1 shows schematically the essential elements of a passenger transport device according to the invention, ie concretely an escalator 1, with the support structure 2, the side rails (balustrades) 3, the step conveyor line 4, the circulating handrail 5 and the sprocket assembly 6 of the drive station.
  • the invention relates to features in the field of sprocket assembly, which is virtually identical in escalators and horizontal moving walks.
  • Fig. 2 can be seen in a side elevation running as a truss supporting structure 2 of the escalator with the attached thereto by means of screw central axis 7, which support the fixed central axis 8 of the sprocket assembly 6.
  • auxiliary supports 9, 10 are attached to the support structure, which serve to fix the sprocket assembly described below.
  • the chain locking devices which are used to lock the long link chains of the conveyor line in the vicinity of the drive station prior to the start of rolling bearing replacement, are blocked so that the sprocket assembly is unloaded from the chain hoist.
  • Fig. 3 shows the left-side part of the (symmetrical) sprocket assembly 6. This consists essentially of two interconnected by a hollow shaft 14 conveyor-sprockets 16, which are supported on the central axis 8 via the pressed-in these sprockets roller bearings 15.
  • This central axis lies with its ends in clamping bores of the central axle carrier 7 bolted to the supporting structure. Further recognizable are the roller chain sprockets 17 flanged to the conveyor track sprockets 17 with roller chains 18, via which the sprocket assembly is driven by a geared motor. Shown is a first phase of the bearing replacement, in which the sprocket assembly is already connected by screws 11 and upper and lower spacers 12, 13 rigidly connected to the support structure, the central axle 7 are still mounted. Fig.
  • FIG. 4 shows a cross section through the sprocket assembly after removal of the central axle 7 and leaves the Recognize spindle extractor 19, which is screwed to the lateral withdrawal of the central axis 8 with screws 20 on the conveyor track sprocket 16.1.
  • Fig. 5 can be seen a next phase of the bearing replacement, in which the central axis 8 is pulled so far to the left by means of the spindle extractor 19, that the inner ring of the pressed in the right side conveyor sprocket 16.2 roller bearing 15.2 is accessible to a Lagerausziehvorraum.
  • two groups of star-shaped threaded pins 21 are visible in the shell of the hollow shaft 14, which form an auxiliary centering for the central axis according to claim 4.
  • FIG. 6 again shows the cross section through the sprocket assembly shown in the phase of pulling out the old roller bearing 15.2 from its seat in the conveyor sprocket 16.2.
  • the hook engage behind the inner ring of the bearing and whose pressure spindle is supported on the end face of the central axis, which in turn is secured by the spindle-extractor 19 against displacement.
  • Fig. 7 again in cross section through the sprocket assembly, to recognize how a new roller bearing 15.2 is pressed by means of a spindle-pressing device 23 by pressure on its outer ring in the bore in the conveyor-strand sprocket. The spindle of the device is screwed into an internal thread 24 in the end face of the central axis, which is still secured by the spindle-extractor 19 against displacement.

Landscapes

  • Escalators And Moving Walkways (AREA)

Claims (6)

  1. Escalier roulant avec une chaíne de marches sans fin pour le transport de personnes entre différents niveaux ou trottoir roulant avec une chaíne de plaques sans fin pour un transport de personnes non ascendant ou légèrement ascendant, composé essentiellement d'une construction porteuse (2) avec des rampes latérales (balustrades) (3), le tronçon convoyeur de marches ou de plaques (4), deux bandes sans fin formant mains courantes (5) et une station d'entraínement avec un sous-groupe de roues à chaínes (6) composé essentiellement de deux roues à chaínes de tronçon convoyeur (16) reliées entre elles par un arbre creux (14), lequel sous-groupe (6) s'appuie grâce à des roulements sur un axe central (8) dont les extrémités sont fixées dans les supports d'axe central (7) reliés de manière amovible à la construction porteuse,
       caractérisé en ce que la construction porteuse comporte des supports auxiliaires (9, 10) d'une forme appropriée auxquels le sous-groupe de roues à chaínes de l'unité d'entraínement peut être fixé à l'aide d'éléments de liaison amovibles, lors du remplacement des roulements (15).
  2. Escalier roulant ou trottoir roulant selon la revendication 1, caractérisé en ce que les supports d'axe central (7) sont fixés de manière amovible à la construction porteuse à l'aide de liaisons par vis.
  3. Escalier roulant ou trottoir roulant selon les revendications 1 et 2, caractérisé en ce que l'axe central (8) du sous-groupe de roues à chaínes (6) est conçu pour pouvoir être déplacé dans les bagues intérieures des roulements dudit sous-groupe (6) au moins jusqu'à ce que ces bagues intérieures deviennent accessibles pour un dispositif d'extraction de roulement (22).
  4. Escalier roulant ou trottoir roulant selon les revendications 1, 2 et 3, caractérisé en ce que l'axe central (8) du sous-groupe de roues à chaínes (6) comporte sur ses deux côtés frontaux des filetages (24) pour le vissage d'un dispositif d'extraction de broche (19) et d'un dispositif d'extraction de roulement (22).
  5. Escalier roulant ou trottoir roulant selon les revendications 1 à 4, caractérisé en ce que le sous-groupe de roues à chaínes (6) contient un centrage auxiliaire pour l'axe central (8), qui se compose de deux groupes d'au moins trois tiges filetées (21) disposées en étoile dans l'arbre creux (14) du sous-groupe (6).
  6. Procédé pour simplifier le montage des roulements dans le sous-groupe de roues à chaínes (6) qui fait partie de la station d'entraínement d'un escalier roulant ou d'un trottoir roulant et qui est composé essentiellement de deux roues à chaínes de tronçon convoyeur (16) reliées entre elles par un arbre creux (14), lequel sous-groupe (6) s'appuie grâce à ces roulements (15.1, 15.2) sur un axe central (8) fixé dans la construction porteuse (2) à l'aide de supports d'axe central (8),
       caractérisé en ce que lors d'une première phase, on fixe le sous-groupe de roues à chaínes (6) rigidement à des supports auxiliaires (9, 10) de la construction porteuse, puis on enlève les supports d'axe central (7) des deux côtés, après quoi on tire l'axe central (8) vers un côté jusqu'à ce que son extrémité sorte de la bague intérieure du roulement (15.2) situé de l'autre côté, puis on sort ce roulement de son montage à l'aide d'un dispositif, on emmanche un roulement neuf de préférence à l'aide d'un dispositif d'emmanchement vissé dans un filetage (24), prévu côté frontal, de l'axe central, et enfin on tire à nouveau l'axe central (8) vers le milieu, on monte les supports d'axe central et on enlève les fixations du sous-groupe aux supports auxiliaires (9, 10).
EP20000100341 1999-01-13 2000-01-07 Dispositif et méthode pour simplifier le remplacement des roulements sur un escalier ou trottoir roulant Expired - Lifetime EP1020394B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20000100341 EP1020394B1 (fr) 1999-01-13 2000-01-07 Dispositif et méthode pour simplifier le remplacement des roulements sur un escalier ou trottoir roulant

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99810018 1999-01-13
EP99810018 1999-01-13
EP20000100341 EP1020394B1 (fr) 1999-01-13 2000-01-07 Dispositif et méthode pour simplifier le remplacement des roulements sur un escalier ou trottoir roulant

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Publication Number Publication Date
EP1020394A1 EP1020394A1 (fr) 2000-07-19
EP1020394B1 true EP1020394B1 (fr) 2003-07-02

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EP20000100341 Expired - Lifetime EP1020394B1 (fr) 1999-01-13 2000-01-07 Dispositif et méthode pour simplifier le remplacement des roulements sur un escalier ou trottoir roulant

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4903401B2 (ja) * 2004-07-12 2012-03-28 インベンテイオ・アクテイエンゲゼルシヤフト 軸−軸受を有するエスカレータまたは動く歩道ならびにこのエスカレータを組立および分解する方法
EP3569556B1 (fr) * 2018-05-15 2024-04-24 Otis Elevator Company Entraînement de transport de personnes et dispositif de transport de personnes
EP3569555B1 (fr) * 2018-05-15 2023-09-27 Otis Elevator Company Entraînement de transport de personnes et dispositif de transport de personnes
US10858221B2 (en) * 2018-12-19 2020-12-08 Otis Elevator Company People conveyor drive and people conveyor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH485588A (de) * 1968-12-24 1970-02-15 Inventio Ag Handlaufantrieb für Fahrtreppen und Personenförderbänder

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