EP3368461B1 - Sicherungselement für umlenkeinheit - Google Patents

Sicherungselement für umlenkeinheit Download PDF

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Publication number
EP3368461B1
EP3368461B1 EP16787877.6A EP16787877A EP3368461B1 EP 3368461 B1 EP3368461 B1 EP 3368461B1 EP 16787877 A EP16787877 A EP 16787877A EP 3368461 B1 EP3368461 B1 EP 3368461B1
Authority
EP
European Patent Office
Prior art keywords
axle
securing element
carrier
elevator installation
installation according
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.)
Not-in-force
Application number
EP16787877.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3368461A1 (de
Inventor
Christof MOSER
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
Original Assignee
Inventio 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 Inventio AG filed Critical Inventio AG
Publication of EP3368461A1 publication Critical patent/EP3368461A1/de
Application granted granted Critical
Publication of EP3368461B1 publication Critical patent/EP3368461B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • 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

Definitions

  • the invention relates to an elevator installation according to the preamble of claim 1.
  • Elevator systems are usually installed in a shaft of a building and are used to transport people or goods.
  • the cabin movable in the vertical direction in the shaft is carried by suspension means, for example in the form of ropes or belts, the suspension means being connected to a drive for moving the cabin.
  • the cabin and / or a counterweight connected to the cabin via the suspension element is connected to the suspension element via one or more deflection units.
  • the car is assigned one or two deflection units and the counterweight is assigned a deflection unit.
  • deflecting units have been developed with a pulley and an axle mounted on a carrier, which in a first life cycle, a rotationally secure mounting of the axle is ensured in the carrier and in which when a certain torque is exceeded, the axis in a second life cycle rotatably in the carrier is stored.
  • a genus comparable comparable elevator system with a counterweight associated deflection unit having the described functionality with the two life cycles, is from the WO 2013/186092 A1 known.
  • At least one of the holding means is rotationally fixed relative to the carrier for a rotationally secure mounting of the axle in a first life cycle by an anti-rotation means.
  • the respective deflection unit can be operated optimally at least in the first life cycle.
  • the deflection roller can be turned with low noise and with little wear.
  • At least one deflection unit is designed such that when a certain torque between deflection roller and axle is exceeded, the anti-rotation means releases the corresponding (or the anti-rotation means associated) holding means and the axis is rotatably mounted in a second life cycle in the carrier between the holding means.
  • the lifetime of the axle attachment of the deflection unit is thus characterized by two life cycles. In the first life cycle, which roughly corresponds to a normal state, the axis in the carrier can not be rotated. In the subsequent second life cycle, which corresponds approximately to an emergency operating state, the axle can be rotated in the carrier, whereby the axial securing of the axle in the carrier is still ensured.
  • the diverter unit can also be better monitored. In the second life cycle, it may happen that the axle eats itself by wear in the carrier and a more or less vertically extending slot in the carrier arises. This phenomenon is easily observed, which simplifies monitoring of the diverter for maintenance personnel.
  • the one or more anti-rotation means comprise a secured to the carrier, for example, by material selection or shaping created weakening zone comprising securing element, wherein the securing element for the rotationally secure mounting of the axis in the first life cycle, the axis acts in a blocking position and wherein the securing element is configured such that the blocking position of the axis for creating the rotatable mounting of the axle with respect to the carrier in the second life cycle is canceled under force by exceeding a certain torque by deformation (eg by plastic deformation) and / or destruction of the weakening zone, a particularly advantageous, safe Deflection unit created.
  • the securing element can be a body, preferably formed by a plate, which can be fastened to the carrier, for example by means of a screw or in some other way.
  • the securing element is designed and secured to the carrier such that the securing element, after the blocking position has been released under the action of force when a certain torque is exceeded in the second life cycle with respect to the rotatable mounting of the axle in the carrier, remains on the carrier. This avoids that flying parts can cause damage.
  • the weakening zone of the securing element may be formed as a predetermined breaking point or contain a predetermined breaking point.
  • the securing element can be integrated to form the weakening zone at least one web preferably.
  • This web or at least one of the webs may be particularly preferably designed as a predetermined breaking point.
  • the securing element may have a fixing region, via which the securing element is fastened or fastened to the carrier, and a holding region, by means of which the axis is held or held by the securing element in the blocking position in the first life cycle.
  • the weakening zone can be the fixing area with the Connect holding area. The weakening zone is thus located between the fixing area and the holding area.
  • the securing element may have a fixing region, via which the securing element is fastened or fastened to the carrier, and a holding region, by means of which the axis is held or held by the securing element in the blocking position in the first life cycle; wherein the fixing region and the holding region is connected by the at least one web.
  • the securing element is preferably designed as a monolithic body.
  • the fixing region may have the shape of a ring.
  • the annular fixing region can form an active surface, which is acted upon or acted upon in a clamping manner by the screw head or a nut.
  • the securing element has at least two webs. Particularly preferred are two webs are provided. In this embodiment, it can be ensured, for example, that the fuse element also remains in the second life cycle after the blocking position of the axle has been released, because when exceeding the predetermined torque only one of the two webs breaks or is separated, while the other web indeed undergoes plastic deformation, but otherwise remains intact.
  • the fuse element may also have more than two webs for special applications.
  • the securing element with the plurality of webs may have a star-shaped arrangement of the webs.
  • the inner, annular fixing region can be connected to the outer holding region by radially and preferably straight webs. This may result in a star-shaped arrangement. However, other web geometries are also conceivable. Thus, the webs could have a serpentine or zigzag course. Also, a spiral shape is conceivable, in which case a web or to form a double spiral two webs would be provided for this case.
  • the webs may have a constant web width over the entire web length. However, it may be advantageous if the webs at least with respect to a plan view are formed radially inwardly tapered. For example, the respective web may have a trapezoidal shape.
  • the holding region has a substantially quadrangular outer contour.
  • This fuse element could be made easily from a square metal plate. Such a fuse element could therefore also be referred to as a "break plate”.
  • the retaining means may be formed on one side by an axle head integrally formed on the axle to form a shoulder-like abutment.
  • the axis with the axle head is preferably made monolithic and consists for example of a metallic material.
  • the axle may be a substantially rotationally symmetrical steel axle body. In this embodiment, therefore, the axle has a mushroom-shaped configuration, wherein the axle forms the abovementioned axle head ("mushroom shield"), to which an axle shaft adjoins in the axial direction.
  • the axle head is essentially cylindrical and has a larger diameter than the axle shaft.
  • axle head can simply be dimensioned so that a break or other destruction of the axle head is virtually impossible even with extremely strong mechanical stresses during operation of the elevator.
  • axle assembly with the mushroom-shaped axle body is easy to handle and allows easy and quick assembly and disassembly.
  • the rotationally secure mounting of the axle can be achieved in that at least one of the holding means, such as the aforementioned axle head has a predetermined by a plane surface anti-rotation portion which is supported on a securing element secured to the carrier.
  • the anti-rotation portion may be arranged in the peripheral region of the axle head.
  • the axle head has a cylindrical outer shape, the anti-rotation portion can be easily formed by chamfering the cylindrical peripheral surface.
  • the axle head can also have an anti-rotation portion protruding in the radial direction, which is fastened to the carrier, for example, by means of a screw connection.
  • the holding means is formed on at least one side by a separate component. It is particularly advantageous if on one side of the axis, the holding means is formed by the previously described axle head and on the opposite side of the holding means by the separate component. A simple assembly and disassembly of the deflection is ensured in this way.
  • FIG. 1 shows a generally designated 1 elevator system in a highly simplified and schematic representation.
  • the elevator installation (or shortly the elevator) 1 has a cabin 2 which can be moved vertically up and down in an elevator shaft 3 for the purpose of transporting People or goods on.
  • Supporting means 5 for supporting the car 2 and a counterweight 4 may be a rope or a plurality of ropes. Of course, other support means are conceivable, for example in the form of belts.
  • the car 2 and the counterweight 4 are each connected via deflecting units 7, 8, 9 with the support means 5.
  • a drive 6, for example a traction sheave drive is used, which is arranged by way of example in a separate machine room in the region of the shaft head.
  • elevator installation 1 is designed in a 2: 1 suspension configuration.
  • suspension variants eg 4: 1 would be conceivable.
  • a deflection unit may also be arranged in the region of the cabin roof.
  • FIG. 2 shows the region of the axis of rotation of the counterweight associated with the deflection unit 9, on which via the carrier 13, the (not shown) counterweight is suspended.
  • the deflecting unit 9 shown here could also be associated with the car 2 (7, 8, see Fig. 1) or even be arranged at another location in the elevator installation 1.
  • the deflection unit 9 comprises a deflection roller 11, on the circumference of which the support means (not shown here) is guided and deflected.
  • the deflection roller 11 is connected via a bearing 12 with an axis 10 and freely rotatably supported on the axis 10.
  • the bearing 12 may include one or more rolling bearings as required.
  • the axle 10 is fixed to a carrier 13.
  • the carrier 13 is connected to the (not shown) counterweight.
  • the carrier 13 has two mutually opposite walls 25 and 26, which are each provided with a bearing receptacle, through which the axis 10 is performed.
  • the axle 10 is secured in the axial direction on both sides.
  • the holding means for axially securing the axle on the carrier 13 is formed by an axle head 15 formed on the axle 10, which defines a shoulder-like stop.
  • the axial securing is achieved by a holding part 14 attached to the axle.
  • the securing part designated 20 is used for securing the holding part 14 in the position shown.
  • the axis 10 is rotatably connected to the carriers 13, wherein the rotation only acts on one side of the axle. This anti-rotation ensures the designated fuse element 16, which is bolted to the carrier 13.
  • the axle head 15 has a predetermined by a flat surface anti-rotation portion 21 which is supported on the fuse element 16.
  • the fuse element 16 is attached to the carrier 13 via a screw connection.
  • FIG. 3 shows, inter alia, that the holding part 14 is designed horseshoe-shaped.
  • the horseshoe-shaped holding part 14 has mutually opposite, parallel flanks 18 which cooperate with complementary form-fitting portions 19 and thus ensure a rotationally fixed fixation of the holding part 14 in the finished assembled position.
  • the holding part 14 surrounds the axis 10 with respect to the radial direction predetermined by the axis.
  • the holding part 14 is provided with threaded holes designed as receptacles for mounting screws 23.
  • the securing part 20 is designed annular and contains four to the threaded holes 27 corresponding through holes 28 through which the screws 23 are inserted.
  • the securing element 16 is formed by a plate-like body. Instead of the illustrated in a plan view square plate also other shapes for the component 16 could be selected. It should be noted that the securing element 16 on the side designated 38 has an edge or portion which cooperates with the anti-rotation portion 21 of the axis 10 and rests against this.
  • the securing element 16 has a hole 30, through which the screw 17 can be inserted and then screwed into the threaded bore in the wall 26 of the carrier 13.
  • the substantially cylindrically shaped axle head has an anti-rotation portion 21 created by chamfering. The anti-rotation portion 21 is supported on the fuse element 16 and thus causes the rotation of the axis 10.
  • the fuse element 16 is located in FIG. 4 in a blocking position.
  • the fastening screw 17 has a screw head 31 and an adjoining, threaded screw shank 32. Furthermore, a washer 33 can be seen, which lies after screwing the fastening screw 17 on an annular fixing region 34 of the securing element 16.
  • the annular fixing region 34 thus forms an active surface, which can be acted upon by clamping by the screw head 31. It is of course conceivable to design the screw connection in such a way that can be dispensed with the washer 33.
  • the securing element 16 is compressed. In this compression, the designated 38, the anti-rotation portion 21 facing side 38 of the fuse element 16 is pressed down permanently, whereby the blocking position is canceled. The securing element 16 is then plastically deformed and partially destroyed (see the following Fig. 7 ).
  • the securing element 16 has two webs 35 designed as predetermined breaking points for this special purpose. Regarding details of the exact configuration of the fuse element 16 is on the FIGS. 6 and 7 directed.
  • the mentioned torque can be precisely adjusted by choice of material, dimensioning and by shaping, in particular the web geometries of the fuse element 16.
  • the screw 17 remains intact even under excessive mechanical action, whereby the securing element 16 remains together with the screw 17 in any case on the carrier 13. The screw 17 thus does not represent a predetermined breaking element.
  • the axle 10 is still secured against undesired movement in the axial direction.
  • the service person discovers the axle 10 rotating in the carrier 13, it may take repair or repair measures.
  • the axis 10 is thus rotatably received in the carrier 13 in a second life cycle of the deflection unit. Tests have shown that the rotating axle 10 can, after some time by wear, to a certain extent eat into the carrier 13 and a more or less vertically extending slot arises in the carrier. Thanks to the special axle arrangement, however, an axial securing is ensured at all times, so that the axle 10 can not fall out of the carrier 13 or move away. The possibly resulting slot also allows for easy monitoring of the deflection unit.
  • axle head 15 could also have an anti-rotation portion protruding in the radial direction or a special shape in the peripheral area. It would even be conceivable to weld the plate body of the security element 16 to the axle head 15.
  • FIG. 5 shows the individual components of the axle assembly containing the axis 10 with the axis formed on the axle head 15, designed as a plate securing element 16, the holding part 14 and the securing member 20.
  • the axis 10 is designed to be mushroom-shaped, the axis head 15 the "mushroom umbrella” forms.
  • the axle shaft 24 adjoining the axle head in the axial direction has a smaller diameter D1 than the diameter D2 of the axle head 15.
  • the axle shaft 24 can be fitted in corresponding bearing receptacles of the carrier.
  • FIG. 6 shows a plan view of a fuse element 16 in the original state.
  • the securing element 16 is installed in the respective deflection unit and ensures the previously described rotation of the axis 10.
  • the fuse element 16 has two by arcuate recesses 36 created webs 35.
  • the recesses 36 and the through hole 30 in the form of a bore can be easily created, for example, by machining processes.
  • a full, square metal plate eg steel
  • the securing element 16 has an inner, annular fixing region 34 and an outer holding region 37 with a quadrangular outer contour.
  • the inner, annular fixing region 34 is connected to the outer holding region 37 via the two webs 35.
  • the annular fixing region 34 serves for fastening the securing element 16 to the carrier 13 (not shown here) of the deflection unit.
  • the annular fixing region 34 forms an active surface, which can be acted upon by clamping by the screw head (31) of the fastening screw (17) (cf. Fig. 4 ).
  • the (not shown here) axis is held on the holding portion 37 in the blocking position for a rotationally secure mounting of the axis in the first life cycle.
  • the webs 35 extend from the annular fixing region 34 in the radial direction outward to the outer holding portion 37.
  • the webs 35 are tapered in plan view radially inwardly, wherein they are shaped like a trapezoid.
  • the securing element 16 Under the action of force when the predetermined torque of the axle is exceeded, the securing element 16 is changed as follows: The side 38 of the securing element 16 is pressed down by the rotating axle and causes deformation and partial destruction of the securing element 16 FIG. 7 shown. When pressing down on page 38, one of the bars was apparently broken; while the other bridge 35 has been plastically deformed, but otherwise remains intact. A residual web of the broken web is designated 35 '. Consequently, the securing element 16 formed from a quadrangular metal plate could also be referred to as a "break plate". Thanks to the in FIG. 7 By way of example, the left web 35, which does not undergo any separation in contrast to the other web, can ensure that the securing element 16 remains on the carrier 13.
  • FIG. 7 relates to the second life cycle in which the axle 10 is rotatably mounted in the carrier 13.
  • the inventive fuse element could, in contrast to the embodiment according to FIG. 6 also have only one web or more than two webs.
  • the webs should preferably be arranged in a star shape.
  • an indentation, a constriction or possibly a perforation line can be arranged in the respective web.
  • the securing element could also have other weakening zones, which are deformable and / or destructible in order to cancel the blocking position of the axis with regard to the desired second life cycle.
  • the weakening zone could be formed, for example, by a plastically deformable material, for example a crushable plastic material, which is plastically deformed when excessive force is applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Braking Arrangements (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP16787877.6A 2015-10-30 2016-10-27 Sicherungselement für umlenkeinheit Not-in-force EP3368461B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15192397 2015-10-30
PCT/EP2016/075985 WO2017072260A1 (de) 2015-10-30 2016-10-27 Sicherungselement für umlenkeinheit

Publications (2)

Publication Number Publication Date
EP3368461A1 EP3368461A1 (de) 2018-09-05
EP3368461B1 true EP3368461B1 (de) 2019-09-18

Family

ID=54364194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16787877.6A Not-in-force EP3368461B1 (de) 2015-10-30 2016-10-27 Sicherungselement für umlenkeinheit

Country Status (4)

Country Link
US (1) US20180312373A1 (zh)
EP (1) EP3368461B1 (zh)
CN (1) CN108349705B (zh)
WO (1) WO2017072260A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10941020B2 (en) 2018-01-30 2021-03-09 Otis Elevator Company Deflector sheave bracket for offset bedplate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815959A (en) * 1972-08-08 1974-06-11 M Hill Industrial roller or wheel
FI20090093A (fi) * 2009-03-12 2010-09-13 Kone Corp Taittopyöräjärjestely, hissi ja menetelmä
BR112014030998A2 (pt) * 2012-06-12 2017-06-27 Inventio Ag sistema de elevador
CN104291163B (zh) * 2014-09-28 2018-01-09 江苏兴华胶带股份有限公司 一种电梯平衡补偿链冷定型自动盘绕装备中的导向装置
CN204096831U (zh) * 2014-10-08 2015-01-14 贵州中航电梯有限公司 电梯减噪导向装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20180312373A1 (en) 2018-11-01
CN108349705A (zh) 2018-07-31
CN108349705B (zh) 2020-03-27
EP3368461A1 (de) 2018-09-05
WO2017072260A1 (de) 2017-05-04

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