EP3676208A1 - Elevator system with vibration damping - Google Patents
Elevator system with vibration dampingInfo
- Publication number
- EP3676208A1 EP3676208A1 EP18759961.8A EP18759961A EP3676208A1 EP 3676208 A1 EP3676208 A1 EP 3676208A1 EP 18759961 A EP18759961 A EP 18759961A EP 3676208 A1 EP3676208 A1 EP 3676208A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holding element
- elevator
- elevator according
- elements
- carrier
- 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
Links
- 238000013016 damping Methods 0.000 title description 7
- 238000009413 insulation Methods 0.000 claims description 22
- 239000000969 carrier Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 14
- 108010066278 cabin-4 Proteins 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
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 which is movable up and down in a vertical direction in a lift shaft of the building, is carried by suspension means, for example in the form of ropes or belts, the support means being connected to a drive for moving the cabin.
- the elevator car has a cabin body in the interior of which people and goods can be transported.
- the cabin body usually has a floor, side walls and a ceiling and one or two cabin doors.
- the elevator car further has a support structure for supporting or supporting the cabin body. For example, when the elevator car is carried by the support means in the form of a loop, the support structure is disposed below the car body.
- two deflection rollers or deflection units are assigned, which are arranged in the region of the ends of the support structure, so that the along the side walls extending support means are deflected by the pulleys and under the cabin more or less parallel to the ground run.
- one or more deflection rollers may be provided per end region.
- the deflection roller or pulleys is or are freely rotatably supported, for example using rolling bearings.
- the two deflection units can thus have one or more deflection rollers per deflection unit.
- An elevator installation with an arrangement for isolating the elevator car body from vibrations generated by the guide rollers moved during a cabin journey is shown in US 2011/061978 A1.
- the arrangement is rotationally symmetrical and has an annular insulating element made of a rubber material, which is arranged between two likewise annular, rigid steel elements.
- One of the rigid elements has form-fitting ribs which engage complementary recesses of the insulating element to prevent rotation of the insulating element relative to the respective rigid element.
- JP H01 256486 A a comparatively complicated construction with an axis on which a deflection roller is freely rotatably mounted, is shown.
- the deflection roller is arranged between two parallel carrier segments of a support structure.
- the axis is fixed by means of ring elements on the carrier segments.
- the axle is further clamped in the area of the axle ends in axle holders.
- These axle brackets are connected via elastic bodies, which are provided for damping vibrations which are transmitted from the support cable to the deflection roller, in an inclined position of 45 ° relative to the horizontal with the underside of the support structure.
- the elevator car carried by suspension means in the form of a loop has a support structure with deflection rollers, which are each attached to the support structure at an angle on sloping sections.
- U-shaped brackets are used, which are secured with nuts.
- Insulating elements made of an elastic material are provided for isolating the cabin body from vibrations generated by the deflection rollers moved during a cabin movement.
- the elevator system should be simple and inexpensive to produce.
- the elevator installation has an elevator cage, which is preferably movable up and down in a vertical direction by means of suspension elements and is carried by the suspension elements, for example in the form of a loop, preferably in an elevator shaft.
- the elevator car in this case has a cabin body and, for example, arranged below the cabin body and preferably transversely to the vertical direction or horizontally extending support structure for supporting or supporting the cabin body.
- pulleys are disposed between two parallel brackets associated with the support structure. Under certain circumstances, the support structure with the carriers could also be arranged above the cabin body.
- the support structure has two transverse to the vertical direction and in particular horizontally extending parallel support.
- the carriers may be separate components, e.g. Steel beam with a C-profile or I-profile, be. It would also be conceivable, however, that the carriers are assigned to a common component.
- the component could be box-shaped and have parallel support sections for forming the carriers.
- deflection rollers for example to create the lower loop, arranged on the carriers.
- the deflection rollers are preferably arranged in the region of the ends of the carrier. Between the ends arranged on the carriers or in the end regions of the support pulleys further rollers, such as rollers for tensioning the support means on the carrier, could be arranged.
- Each carrier end more than one pulley can be provided in each case.
- the pulleys are each freely rotatably mounted on an axle.
- Each axis can be assigned one or more pulleys.
- the two carriers have receiving openings, preferably in the form of bores, for attaching the axles to the carriers.
- the respective axis is fastened to the carrier by means of a mounting arrangement which engages over the receiving opening.
- the mounting arrangement characterized in that for isolating the cabin of vibrations generated by the moving during a cabin ride pulleys the mounting arrangement has at least one plate-shaped insulation element made of an elastic material, an excellent sound and vibration isolation is achieved and so high demands on the ride comfort can be met.
- insulation element or the insulation elements it is also possible to insulate vibrations coming from the suspension elements or from the drive.
- Such insulation elements can be procured easily and inexpensively and adapted as required.
- To secure the axles in the receiving openings a robust and secure axle mounting is ensured.
- the elevator installation may be a machine room-less elevator installation or an elevator installation with a machine room, wherein the elevator installation has a drive with a machine room Traction sheave, the already mentioned elevator car and a laterally arranged counterweight comprises.
- the drive can drive via the traction sheave one or more carrying straps or carrying cables, which carries the elevator car in the form of an undercut and moves along vertical guides, for example in the form of guide rails.
- the fastening arrangement has an inner, the receiving opening of the carrier associated holding element for holding the axis and an outer holding element, which is fixed to the respective carrier, on.
- the insulation element is sandwiched between the inner support member and the outer support member.
- This embodiment is characterized not only by a good damping behavior but also by simple mountability.
- the reference point for the inside and outside of the holding elements is the (imaginary or geometric) axis of rotation of the axis.
- the outer support member is thus positioned relative to the inner support member in the radial direction, starting from the aforementioned axis of rotation farther out.
- the inner holding element associated with the receiving opening of the carrier may comprise a receiving area, which is received in the receiving opening of the carrier. Through the engagement of the receiving region of the inner holding element in the receiving opening, a reliable connection of the holding element to the carrier can be ensured.
- the person skilled in the art understands a flat component with the usually flat upper and lower sides under the plate-shaped insulating element.
- the above-mentioned upper and lower sides of the insulation element contact the respective retaining elements in the installed state.
- the inner retaining element and the outer retaining element preferably each have planar contact surfaces or bearing surfaces for the insulating element.
- the contact surfaces of the inner holding element and the outer holding element are plane-parallel to each other; the insulating element arranged therebetween lies flat against the two contact surfaces of the holding elements.
- a planar or planar configuration of the opposite upper and lower sides of the insulating element is not absolutely necessary.
- the plate-shaped insulation element could also be designed like a pillow. For example, it could be lense-shaped planar component in cross-section and each having convex upper and lower sides.
- the assembly consisting of the inner support member, the outer support member and the intermediate insulating element can be easily pre-assembled.
- the insulation element can be connected, for example via an adhesive connection with the two holding elements.
- the outer retaining element can be screwed to the carrier.
- the holding elements ie the inner holding element and the outer holding element, as well as the intermediate insulating element are arranged in an inclined position on the carrier. It is thereby achieved that, under load, for adaptation of a force vector resulting from the tensile forces of the suspension elements in the deflection unit, it is preferably inclined in a direction at 45 ° relative to the horizontal.
- the respective contact surfaces or bearing surfaces between the holding elements and the insulating element can be used.
- the inner retaining element and the outer retaining element can each be designed as angular parts.
- the respective angle part comprises two legs, wherein the legs are perpendicular to each other.
- the legs of a holding element can be interconnected by side walls.
- Only one insulating element can be arranged in each case between the respective inner retaining element and the respective outer retaining element.
- a plurality of insulating elements per fastening arrangement For example, two insulation elements lying on differently inclined planes could be provided between the inner retaining element and the outer retaining element.
- the inner holding element may have two preferably planar support surfaces for one insulation element each.
- one of the bearing surfaces can be aligned horizontally and the other bearing surface vertically.
- the outer retaining element then has two corresponding bearing surfaces for the respective insulation element on.
- the inner holding element has an annular elevation, which is inserted into the respective receiving opening of the carrier with a predetermined play.
- This annular elevation can thus form the aforementioned receiving area, which is received in the receiving opening of the carrier.
- the axle may comprise a hollow axle.
- the hollow axle can be supported on the front side of the inner support members. It is particularly advantageous if the hollow axle is in contact with the front side of an end-side active section of the annular elevation.
- a clamping screw can be performed, the attachment of the axles to the carrier using clamping screws are characterized by a high level of safety and ease of assembly.
- the inner support members can be used from both end faces bush parts in the hollow shaft.
- the aforementioned clamping screw on the one hand and a tensioning screw associated clamping nut on the other hand can act on the bushing parts directly or indirectly, for example via a washer or spring washers.
- FIG. 2 is a simplified side view of a lower part of an elevator car of the elevator installation of FIG. 1, comprising a support structure for supporting a cabin body of the elevator car and two deflection units for supporting the elevator car in the form of an underwire
- FIG. 3 is a side view of a support structure of an elevator car according to FIG. 2 and on a deflection rollers having deflection unit
- FIG. 4 is an exploded perspective view of the support structure and the deflection unit of FIG. 3,
- Fig. 5 is a sectional view of the support structure and the deflection of
- FIG. 6A is a perspective, enlarged view of a mounting arrangement for fixing an axle on which the guide rollers are rotatably mounted, to one of the support of the support structure of Fig. 3,
- FIG. 7 shows a variant of the support structure and the deflection unit according to FIG. 3.
- Fig. 1 shows a generally designated 1 elevator system in a much simplified representation.
- the elevator installation 1 has an elevator car 3 (hereinafter referred to as "cabin"), which can be moved vertically up and down in an elevator shaft 2 of a building, for transporting persons or goods in the opposite direction to the cabin 3.
- a counterweight 13 connected to the car can be moved up and down
- the car 3 and the counterweight 13 are moved along vertical guides
- the car 3 has a car body 4 and a support structure for supporting the car body 4.
- the car body 4 includes a car floor 32, side walls 33 and a car ceiling 34.
- the support means 6 for supporting the car 3 and the counterweight 13 may be one or more cables. Of course, other support means, such as support means in the form of straps, conceivable.
- the diverting units having movable main components of the elevator system, ie the car 3 and the counterweight 13 are connected to each other via support means 6.
- the two deflection units assigned to the cabin 3 are designated by 30 and 31.
- a drive 15 for example a traction sheave drive is used to create a so-called machine room-less elevator, which is mounted by way of example in the area of the shaft head of the hoistway 2.
- the drive 15 could of course be arranged with the traction sheave 14 in a separate machine room in the region of the shaft head.
- the elevator installation 1 is designed in a 2: 1 suspension configuration.
- the cab 3 associated deflection units 30, 31 are arranged on a (not shown in the schematic representation of FIG. 1) support structure for supporting the cab body 4.
- the deflection rollers 7, 8 of the deflection units 30, 31 are freely rotatably mounted on (also not shown here) axes.
- the axles are connected to the said support structure in a particular and subsequently described manner by means of a special mounting arrangement.
- the support structure carrying the cabin body 4 and designated by 5 has horizontal supports 9. In the region of the ends of the supports 9, deflection units 30, 31 with deflection rollers 7, 8 are positioned.
- the support structure 5 with the carriers 9 carry the cabin body 4, which in turn can be designed self-supporting.
- the support structure 5 can also be connected to a cage frame 4 surrounding the catch frame or integrated into this.
- the deflection rollers 7, 8 are each freely rotatably mounted on an axle 11.
- an axis 11 is provided for each deflection unit 30, 31 while an axis 11 is provided.
- the two axes 11 are arranged in the region of the ends of the carrier 9, wherein the axes 11 are positioned so that they are held in the carrier 9 by means of corresponding axle receptacles. Holes were drilled for the axle mounts to create receiving holes for the axles 11 in the respective profiles or introduced with other manufacturing methods.
- the carrier 9 overlap the guide rollers 7, 8 and only a relatively small portion of the guide rollers 7, 8 in the form of a circle segment is exposed in the side view.
- Insulating elements 10, which are components of the fastening arrangements for fastening the axles 11 to the carrier 9, are therefore provided for isolating the cabin body 4 from vibrations generated by the deflection rollers 7, 8 moving during a cabin movement.
- the plate-shaped insulating elements 10 are each sandwiched between holding elements 16, 17 for holding the axle 11 and fixing the axle 11 to the carrier 9. Thanks to the isolation elements 10, the axles 11 are mounted on the support structure 5 so as to be vibration and sound insulating.
- the insulation elements could also be designed like a pillow.
- Fig. 3 shows a left side of a support structure 5 for supporting the cabin body.
- the right side of the support structure is similar, but designed with a fastening arrangement with opposite orientation (cf., Fig. 2).
- the two holding elements 16, 17 and the intermediate insulating element 10 form the already mentioned mounting arrangement for securing the axle 11 to the transverse to the vertical direction carrier 9.
- the receiving opening 12 of the carrier 9 associated holding element 16 is used to hold the axis 11.
- the holding element 17 is fixed to the carrier 9.
- the at least in the side view of the axis 11 surrounding holding element 16 is hereinafter referred to as the inner holding element; Accordingly, the holding element 17 is referred to below as the outer holding element.
- Reference point for the inside and outside of the holding elements 16, 17 is the imaginary or geometric axis of rotation of the axis 11.
- the outer holding member 17 is - as can be seen in Fig. 3 - visibly against the inner holding member 16 in the radial direction starting from the imaginary Rotation axis positioned further away or outside.
- the insulation element 10 is designed plate-shaped. It can be made of rubber or other elastic damping material.
- the insulating element 10 may be, for example, a prefabricated rubber plate, which is connected by means of adhesive with the two holding elements 16, 17. Further, the insulating member 10 through in the Cavity between the holding elements 16, 17 vulcanized rubber material are created. Rubber or an elastomeric-based castable material can then be cast into the cavity between the retaining elements 16, 17.
- the outer retaining element 17 is screwed by way of example to the carrier 9.
- the outer holding member 17 could also be connected via a rivet or by other fasteners firmly connected to the carrier.
- For a precise positional fixation can further (not shown) on the outer holding member 17 may be arranged one or more position pins which are inserted into complementary the carrier 9 (also not shown) associated with pin receptacles.
- the holding elements that is to say the inner holding element 16 and the outer holding element 18 and thus also the insulating element 10 are, as can be seen from FIG. 3, arranged in an oblique position on the carrier 9.
- This oblique arrangement causes a resultant force vector under load, which is inclined 45 ° relative to the horizontal, resulting in a durable and robust support structure with an optimal damping behavior.
- FIG. 4 Constructive details of the axle mounting according to FIG. 3 as well as the arrangement of the deflection rollers and their mounting are shown in FIG. 4.
- the axis 11 is secured by means of the receiving opening 12 cross-mounting arrangement on the carrier 9.
- the respective deflection unit 30 has two deflection rollers 7, 7 '.
- the deflection rollers 7, 7 ' are arranged or received between two parallel supports 9, 9'.
- the carriers 9, 9 ' are each configured as C-profiles. End of the supports 9, 9 'receiving openings 12 are provided in the form of holes for the attachment of the axles 11.
- the carriers 9, 9 'can thus form the so-called lower yoke of the catching frame.
- the carriers 9, 9 'could then contact the cabin body directly or possibly via further insulation elements made of an elastic material indirectly and be connected thereto.
- the support structure could comprise further elements, such as further cross members or support frames.
- the deflection unit 30 with the pair forming pulleys 7, 7 'between the supports 9, 9' are executed and arranged, it can be seen from Fig. 5.
- the two deflection rollers 7, 7 ' are freely rotatably mounted on the axle 11.
- the axis 11 is designed as a hollow axis 24.
- the deflection rollers 7, 7 ' are each designed to be freely rotatable by means of a rolling bearing and have an inner ring 35 and an outer ring 36. Between inner ring 35 and outer ring 36 are the rolling elements 37 formed, for example, by balls.
- the outer ring 36 has a grooved traction surface, which is adapted to the support means. The traction surface could have a smooth cylindrical or curved traction surface instead of grooves.
- a spacer shoulder section 38 for spacing the two deflection rollers 7, 7 ' is provided on the hollow axle.
- the axle 11 is secured by means of a clamping screw 25.
- bushing parts 27 are used on both sides of the hollow shaft 24.
- the bush parts 27 are designed sleeve-shaped and have a flange on which the holding elements 16, 16 'abuts.
- the respective mounting arrangements associated with the carriers are made similar.
- the respective components of the mounting arrangement are designated as follows: inner holding element with 16 ', outer holding element with 17' and insulating element with 10 '.
- FIGS. 6A and 6B the fastening arrangement comprising the two retaining elements 16, 17 and the insulating element 10 arranged therebetween is shown again.
- the holding elements 16, 17 and the insulating element 10 are connected to each other and form a structural unit that can be easily installed to create a respective deflection unit.
- the holding elements 16, 17 are obviously each as Angle parts designed and have legs, which are connected to each other for reinforcement by side cheeks.
- the legs of the inner support member 16 are denoted by 18 and 19; the associated side cheeks are designated 22.
- Attached to the side cheeks 22 are elongate side sections which extend sideways around the isolation element. As can further be seen, for example, from FIG.
- the inner holding element 16 has an annular elevation 23 which can be inserted and accommodated in a receiving opening in the carrier.
- the annular elevation 23 of the inner support member 16 - as previously shown in FIG. 5 shows - received in the bore formed as a receiving opening 12 in the carrier 9 with play.
- the annular clearance formed by the clearance can be ensured sufficient, but limited mobility, so that very good damping results can be achieved.
- the annular elevation 23 is integrally formed on the inner holding element 16 and forms with this a monolithic shaped body.
- a limitation of the deflection during a cabin ride can be ensured by a defined lateral gap between the holding elements 16 and 17.
- This gap can be seen in FIG. 6B on the basis of the gap width designated there by a.
- the gap with the gap width a also ensures that a possible inclination of the inner support member 16 with respect to the outer support member 17 in load changes caused by the vibrations during the cabin ride do not exceed a permissible level.
- this design may also help prevent undesired belt skidding.
- FIG. 7 shows a fastening arrangement which, unlike the exemplary embodiment according to FIGS. 3 to 6, has two insulation elements 10 and 21.
- the inner retaining element 16 has two planar bearing surfaces for the insulation elements 10, 21.
- One of the two bearing surfaces, on which the first insulating element 10 rests, is aligned horizontally.
- the other bearing surface, on which the second insulating element 21 rests, is vertically aligned.
- the outer retaining element 17 has two corresponding bearing surfaces for the respective insulation element 10, 21.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17188843 | 2017-08-31 | ||
PCT/EP2018/073366 WO2019043109A1 (en) | 2017-08-31 | 2018-08-30 | Elevator system with vibration damping |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3676208A1 true EP3676208A1 (en) | 2020-07-08 |
EP3676208B1 EP3676208B1 (en) | 2022-02-16 |
Family
ID=59745832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18759961.8A Active EP3676208B1 (en) | 2017-08-31 | 2018-08-30 | Lift system with vibration damping |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3676208B1 (en) |
WO (1) | WO2019043109A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01256486A (en) | 1988-04-06 | 1989-10-12 | Hitachi Ltd | Riding cage device for elevator |
JP4131764B2 (en) | 1998-09-01 | 2008-08-13 | 東芝エレベータ株式会社 | Elevator equipment |
JP2004338927A (en) * | 2003-05-19 | 2004-12-02 | Toshiba Elevator Co Ltd | Car sheave support device for elevator |
CN102112386B (en) | 2008-08-01 | 2015-11-25 | 奥蒂斯电梯公司 | For the vibration isolation assembly of elevator device |
-
2018
- 2018-08-30 EP EP18759961.8A patent/EP3676208B1/en active Active
- 2018-08-30 WO PCT/EP2018/073366 patent/WO2019043109A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019043109A1 (en) | 2019-03-07 |
EP3676208B1 (en) | 2022-02-16 |
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