EP1224143A1 - Aufzug mit einem an einem tragmittel gehaltenen fahrkorb - Google Patents
Aufzug mit einem an einem tragmittel gehaltenen fahrkorbInfo
- Publication number
- EP1224143A1 EP1224143A1 EP00969478A EP00969478A EP1224143A1 EP 1224143 A1 EP1224143 A1 EP 1224143A1 EP 00969478 A EP00969478 A EP 00969478A EP 00969478 A EP00969478 A EP 00969478A EP 1224143 A1 EP1224143 A1 EP 1224143A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- elevator according
- traction sheave
- pulley
- brake
- 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.)
- Withdrawn
Links
- 239000000725 suspension Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims 2
- 238000010276 construction Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 241000049552 Pteris tremula Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000014616 translation Effects 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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0476—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with friction gear, e.g. belt linking motor to sheave
-
- 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
Definitions
- the invention relates to an elevator with a car held on a suspension element according to the preamble of claim 1.
- Such motors are gearless or use special flat gearboxes.
- Such constructions represent special constructions that are associated with correspondingly high costs.
- an elevator drive is known from German utility model DE 298 6 526 U 1, which consists of a belt pulley and a drive pulley coaxially assigned to it, which are joined to form a flat drive wheel which is connected to the drive motor via a belt drive.
- the belt transmission achieves a spatial separation between the traction sheave acting on the support cables and a drive motor assigned to them and causing them to move, so that the drive motor can be arranged in a favorable position at a distance from the traction sheave, which enables a more flexible adaptation to the spatial conditions.
- a relatively high-torque drive motor is necessary.
- the motor on the side on which the driving wheel is located does not have sufficient space between the shaft wall and the lift corridor of the elevator car or its extension up or down. This inevitably results in a restriction in the flexibility of the possible arrangement of the engine. Accordingly, the utility model mentioned at the outset provides for the motor to be arranged in a pocket-like area above the shadow space of a door fighter profile or below the lower frame profile of a door.
- the present invention is therefore based on the problem of creating a holding and drive unit for a car which is integrated in the elevator shaft and which, despite the use of a conventional drive motor, ensures that the drive motor can be arranged almost anywhere in the shaft.
- the invention solves this problem by means of an elevator, the suspension means of which consists of at least one flat band or synthetic rope which is looped directly over a part of the hub of the drive wheel, which at the relevant point has a sleeve-like section which has the required traction sheave profile.
- the curvature of conventional steel cables when deflected by a traction sheave must not be less than a certain, not inconsiderable radius of curvature, since otherwise the bending stress occurring in the steel cables does not exceed the maximum required for the required fatigue strength. exceeds the permissible limit, flat belts or synthetic ropes with a significantly smaller radius of curvature can be guided over a traction sheave.
- a drive motor of such a size can now be used whose width (including the belt pulley carried by it) does not exceed the width of the drive wheel in the axial direction.
- the drive motor can thus be accommodated on the same side as the drive wheel between the shaft wall and the lifting corridor traversed by the cabin or its extension up or down.
- the drive motor is preferably arranged at least partially within the belt pulley carried by it. This is possible because the pulley can be designed with a somewhat larger diameter due to the lower drive torque to be applied to the drive wheel, so that there is sufficient space for motor components within the pulley. This provides additional space for the engine.
- the drive motor is an external rotor motor, the rotor outer side of which is designed as a pulley for the at least one drive belt.
- the pulley does not require any additional installation space in the axial direction of the motor, which in turn makes it easier to use a standard motor.
- An advantageous development provides for the hub carrying the traction sheave profile to be made in one piece. This has the advantage that a separate traction sheave and thus an additional component which causes costs and assembly time can be saved.
- the hub carrying the traction sheave profile, the circumferential friction surface of the brake and the drive pulley are preferably made in one piece. As a result, there are no further individual parts which cause additional costs. If necessary, the driving wheel can be machined efficiently and in one clamping from a pre-cast or pre-forged blank. The need to center individual components of the high-speed driving wheel according to the invention is eliminated.
- the pulley is cranked to form a receiving space for a braking device, i. H. composed of an inner cranked section and a disk-shaped section adjoining it in the radially outward direction, which carries on its outer circumference a wheel rim on which the drive belts act.
- a braking device i. H. composed of an inner cranked section and a disk-shaped section adjoining it in the radially outward direction, which carries on its outer circumference a wheel rim on which the drive belts act.
- the cranked section advantageously forms the circumferential friction surface of a drum brake on its outside, or alternatively the wheel rim, on which the drive belts act, forms the circumferential friction surface of a drum brake on its inside, there is no need to have an additional brake disc or brake drum on the hub to have to accommodate.
- the additional space available on the hub in the axial direction thereby benefits in particular the width of the drive belt.
- Fig. 1 A longitudinal section through a shaft head when the drive wheel and the drive motor are arranged in the shaft head area.
- FIG. 4 The detail V from FIG. 1.
- Fig. 5 A variant of Fig. 1, in which the motor was accommodated in an alternative position in the shaft head using its now small design.
- Fig. 6 A section of a design variant of the driving wheel
- Fig. 7 A section of a further design variant of the driving wheel
- Fig. 8 Another variant of Fig. 1, in which the motor has been accommodated in an alternative position in the region of the lower shaft end using its now small design.
- Fig. 9 A last variant of Fig. 1, in which the motor has been accommodated in an alternative position in the region of the lower shaft end using its now small design.
- FIG. 1 to 4 show a first embodiment of the elevator 1 according to the invention, which has a vertical shaft 2 for moving a car 3 up and down.
- the elevator drive consisting of a drive wheel 5 and a drive motor 6 acting thereon is fitted, the drive possibly also being able to be accommodated at other points in the shaft, of course.
- the Drive motor 6 is designed as an external rotor motor, the rotor outside of which is designed in sections as a pulley for three parallel drive belts.
- the shaft 2 is closed at the top and bottom and has no separate machine room.
- the clear cross section of the shaft is noticeably larger than the cross section of the elevator car, so that there is a space on all sides transversely to the direction of travel of the elevator car between the shaft wall and the corridor traversed by the elevator car.
- the driving wheel 5 has a hub 17, which is profiled on one section as a traction sheave (16).
- a flat strip 8 is looped over this section.
- the car 3 is suspended from this flat belt.
- the flat belt 8 effects the lifting and lowering movement of the car by running over the correspondingly driven traction sheave.
- the drive wheel 5 has a pulley 9, which carries at its outermost diameter a wheel rim 9 a, on the outside of which the drive belt 15 act.
- the inside of the wheel rim 9 a represents the friction surface 10 of a brake drum formed by the wheel rim 9 a.
- Brake shoes press on this friction surface in a known manner (not shown in all details in the figures). In the exemplary embodiments according to FIGS. 1 to 4, these brake shoes are pressed radially outward against the inner surface of the wheel rim 9 a by correspondingly preloaded springs.
- suitable (for example hydraulically actuated) brake cylinders keep the brake shoes in a released position against the spring preload.
- the pulley 9 and the traction sheave integrated in the hub 17 as well as the circumferential friction surface 10 of the brake are combined to form a flat drive wheel 5.
- the drive wheel 5 is mounted on a support frame 11 about a fixed axis of rotation 12.
- a rocker arm 13, which carries the drive motor 6, is articulated on the support frame 11, the rocker arm 13 being subjected to a force via a tension spring 14 which acts on the rocker arm 13 in the sense of tensioning the drive belt or belts 15.
- tension spring 14 which acts on the rocker arm 13 in the sense of tensioning the drive belt or belts 15.
- the axis of rotation 12 of the drive wheel 5 is arranged in the guide plane 25 of vertical guide rails 24 which are assigned to the vertical longitudinal center plane of the car 3 (FIG. 3).
- the support frame 11 can be arranged in a space-saving manner in the space between the guide rail 24 and a side shaft wall 26.
- the shaft of the drive motor 6 (not provided with its own reference number) is arranged parallel to the plane 20 (cf. FIG. 2) of doors 21 which block access to the shaft in stages. Since it is a fast-running drive motor which, due to its high speed, also provides the required performance as a relatively small unit, the motor does not protrude above level 22 (see FIG. 2), i.e. Beyond the plane spanned by the side of the support frame 11 facing the car, in the direction of the elevator car.
- the motor 6 held on its outer circumference by means of the rocker 13 therefore does not have to lie above the door fighter profile 22 in the construction according to the invention, as shown in FIG. 1. Because due to the fact that the motor no longer protrudes above level 22 in the construction according to the invention, the motor on the same side as the driving wheel may now also find sufficient space between the shaft wall and the movement corridor of the elevator car or the imaginary extension of the Corridor up or down. As illustrated in the embodiment variant shown in FIG. 5, the motor can (for example) also by means of a corresponding rocker below the horizontally running part of the support frame 11 in the space on the right-hand side, with reference to FIG. 2, between the movement corridor of the elevator car and the shaft wall just above the door opening be attached. The engine is at this point in the event of maintenance. U. more accessible.
- the motor (also purely for example) can also be attached by means of a corresponding rocker just above the bottom of the shaft between the guide rail and the shaft wall.
- the corresponding guide rail is shown broken away for the sake of clarity.
- the motor is, seen from the plane of the drawing, behind it and behind the continuation of the guide rail indicated by dotted lines.
- the motor can also be arranged on the opposite side in comparison with FIG. 8 below the threshold of the shaft door.
- FIG. 4 shows as detail V (cf. marking of detail V in FIG. 1) the design of the driving wheel, its frame and the motor attached to it in greater detail.
- the half of FIG. 4 lying above the bearing journal or the axis 12 represents a half section (seen from above), the half of FIG. 4 lying below the bearing journal 12 represents a plan view, likewise seen from above.
- the drive wheel 5 is driven by three parallel V-belts 15.
- the V-belts 15 are shown broken away in the region of the linkage of the rocker 13 in order to reveal a view of the linkage of the rocker 13.
- the hub 17 of the drive wheel 5 is supported by two roller bearings on the bearing journal 12 which represents the axis of rotation of the drive wheel and which is supported on both sides on the support frame 11.
- the elevator car is carried and moved by the flat belt 8.
- the flat belt 8 is looped directly around the hub 17, which for this purpose has a section 16 at the wrapped point, which has the required traction sheave profile for securely receiving a flat belt.
- the profiling essentially consists of two board-like projections attached on both sides.
- the inside of the drive belt (at least if this is a synthetic surface) is sufficiently frictive that no special rope grooves or the like have to be provided in order to reliably prevent the flat belt from slipping.
- the section 16 of the hub 17 which is wrapped by the flat belt 8 is sleeve-like in the sense that on a wheel rim, which represents a traction sheave in the conventional sense, which has spokes or a wheel disk as a radial intermediate member with the actual hub is connected, and thus has a correspondingly large outer diameter, is dispensed with. Rather, the belt is wrapped around a diameter of the hub that is as close as possible to the axis of rotation.
- the hub is designed in this area with a wall thickness that is adequate from the point of view of strength and the usual safety supplements.
- the outer diameter of the traction sheave profile which is in contact with the drive belt, is thus essentially oriented towards the outer diameter (at least) of the bearing closest to the traction sheave profile. It is particularly advantageous not to make the outside diameter of the profile in contact with the drive belt greater than about a diameter which corresponds to two and a half times the outside diameter of the bearing in question.
- a carrying belt 8 requires an increased installation space parallel to its rolling axis compared to a conventional carrying rope, this does not mean that the drive wheel necessarily and disadvantageously builds wider in the axial direction. Because the fact that a fast-running and correspondingly lower-torque motor can be used also reduces the demands on the belts connecting the motor and the drive pulley - the tensile forces to be transmitted from the belts decrease noticeably with increasing speed with increasing power flow. As a result, it becomes possible to use narrower belts 15, as a result of which at least a large part of the installation space additionally required for the drive belt 8 is available in the axial direction.
- the pulley 9 is pushed onto a side flange of the hub 17 and there rotatably, for. B. secured by a feather key and axially fixed in a conventional manner.
- the hub and drive pulley are made in one piece from a pre-cast or pre-forged blank. This option is favored by the fact that a flat belt or synthetic ropes, unlike steel ropes, the traction sheave (or its rope grooves, if necessary) do not wear out, which is why it is no longer imperative that the traction sheave can be replaced individually.
- the wheel rim carrying the V-belts 15 is
- the 10 provides a brake drum.
- the brake pad 19 held on a pin 18 can be pressed outwards against this friction surface by a hydraulic or mechanical brake actuation mechanism.
- This construction has the advantage that the braking forces act on a very large lever arm, which is why relatively large braking torques can be achieved even with relatively low actuating forces or a relatively weakly dimensioned braking mechanism.
- FIG. 6 shows the area of a modified driving wheel construction close to the axis. Components with the same function are identified with identical reference numerals as in the preceding figures.
- the hub 17 of the drive wheel 9 is mounted on the bearing journal 12 of the drive wheel 9 via bearings 14.
- the hub 17 carries a traction sheave profile 16 for a flat belt 8.
- the flat belt is moved around an axis that is as close as possible to the axis, ie. H. essentially looped through the outer diameter of the bearings 14 and the wall thickness of the hub.
- the drive pulley 9 also consists of an inner cranked section 9 b, to which a disk-shaped section 9 c connects, which carries on its outer circumference a wheel rim 9 a, on which the drive belts 15 act.
- the cranked section is now provided with a drum-shaped circumferential extension 9 d. This results in a brake drum onto which brake shoes 19 can be pressed from the outside.
- This variant has the following advantage.
- the relatively small load on the belts 15, owing to the reduced diameter of the support pulley allows the use of relatively narrow belts, as a result of which the wheel rim 9 a of the drive belt pulley builds relatively narrow.
- the traction sheave has a much smaller diameter than the outer diameter of the brake drum, ie the outer diameter of the extension 9 d. Because of this, it becomes possible for the brake shoes 19 to protrude laterally in the axial direction over the drive pulley 9 without being covered laterally in this area by the drive pulley. This opens up the possibility of actuating the brake shoes on the side of the wheel rim with a conventional caliper-type brake linkage and keeping them released during operation.
- the oil or hydraulic pump which is otherwise to be accommodated in the shaft for hydraulic actuation and is also expensive, is dispensed with, which has significant advantages.
- the brake drum or extension 9d is advantageously dimensioned ready so that the torque caused by the asymmetrical attack of the actuating force FBREMS, which tends to tip the brake shoe, is intercepted by the friction surface 10.
- FIG. 7 shows a section of the drive wheel of a further construction variant close to the axis.
- Components with the same function are in turn identified by the reference numbers which are identical to the reference numbers previously used for the corresponding components.
- a hub 17 is also mounted here on the bearing journal 12 via the bearing 14.
- the hub 17 in turn carries a traction sheave profile 16 in a region close to the axis, which is essentially predetermined by the outer diameter of the bearing and the wall thickness of the hub, which is also designed here to accommodate a flat belt 8. Since a flat belt leads to virtually no traction sheave wear, it is possible to design the hub 17 at least in one piece with the brake disc 21, possibly even with the drive pulley 9.
- Brake pads 19 held in a brake caliper 20 act on the brake disc, which are pressed against the brake disc under pretension and kept released (preferably hydraulically) during operation.
- a pressure medium reservoir is installed (not shown), so that even after disengagement In the event of a pump providing the pressure medium, for example if the electrical supply voltage fails, the brake can be vented manually. This allows the car 3, z. B. can be moved to any position for salvage purposes.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19948946A DE19948946A1 (de) | 1999-10-11 | 1999-10-11 | Aufzug mit einem an einem Tragmittel gehaltenen Fahrkorb |
DE19948946 | 1999-10-11 | ||
PCT/EP2000/009971 WO2001028911A1 (de) | 1999-10-11 | 2000-10-10 | Aufzug mit einem an einem tragmittel gehaltenen fahrkorb |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1224143A1 true EP1224143A1 (de) | 2002-07-24 |
Family
ID=7925237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00969478A Withdrawn EP1224143A1 (de) | 1999-10-11 | 2000-10-10 | Aufzug mit einem an einem tragmittel gehaltenen fahrkorb |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP1224143A1 (de) |
JP (1) | JP2003512272A (de) |
KR (1) | KR20020062284A (de) |
CN (1) | CN1378519A (de) |
AU (1) | AU7917800A (de) |
BR (1) | BR0014621A (de) |
CZ (1) | CZ20021262A3 (de) |
DE (1) | DE19948946A1 (de) |
IL (1) | IL148733A0 (de) |
NO (1) | NO20021405L (de) |
PL (1) | PL356123A1 (de) |
RU (1) | RU2002110092A (de) |
WO (1) | WO2001028911A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20202975U1 (de) * | 2002-02-26 | 2003-07-03 | System Antriebstechnik Dresden Gmbh, 01189 Dresden | Maschinenraumloser Treibscheibenaufzug mit Riemenantrieb und Bremse |
JP5129428B2 (ja) * | 2003-12-01 | 2013-01-30 | インベンテイオ・アクテイエンゲゼルシヤフト | エレベータシステム |
JP4895500B2 (ja) | 2004-01-07 | 2012-03-14 | インベンテイオ・アクテイエンゲゼルシヤフト | エレベータ設備用駆動装置およびエレベータ設備用駆動装置の交換方法 |
WO2012114163A1 (en) * | 2011-02-24 | 2012-08-30 | Giorgio Jezek | Device for saving energy during vertical and horizontal motions wherein the resisting torque can be split into two torques opposing each other |
WO2010134106A2 (en) * | 2010-02-26 | 2010-11-25 | Giorgio Jezek | Device for saving energy during vertical and horizontal motions wherein the resisting torque can be split into two torques opposing each other |
JP2012240830A (ja) * | 2011-05-24 | 2012-12-10 | Mitsubishi Electric Corp | 綱車機構 |
EP2774886B1 (de) * | 2013-03-04 | 2015-11-18 | Kone Corporation | Antriebsscheibenaufzug |
EP2810911A1 (de) | 2013-06-05 | 2014-12-10 | Kone Corporation | Antriebsmaschine für einen Aufzug sowie ein Aufzug |
IT201700117293A1 (it) * | 2017-10-17 | 2019-04-17 | Extrema S R L | Gruppo frenante per un servoscala. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1029627A (en) * | 1909-04-05 | 1912-06-18 | Charles O Pearson | Traction-elevator. |
CH207577A (de) * | 1938-11-04 | 1939-11-15 | Bucher Guyer Ag Masch | Antriebsvorrichtung mit Seilwinde für Warenaufzüge für Motorantrieb. |
DE69914577C5 (de) * | 1998-02-26 | 2014-11-20 | Otis Elevator Co. | Treibscheibenaufzugsystem mit flexiblem flachseil und permanentmagnet-antrieb |
DE29806526U1 (de) * | 1998-04-09 | 1998-07-23 | Osma-Aufzüge Albert Schenk GmbH & Co. KG, 49084 Osnabrück | Aufzug mit einem an Seilen gehaltenen Fahrkorb |
-
1999
- 1999-10-11 DE DE19948946A patent/DE19948946A1/de not_active Withdrawn
-
2000
- 2000-10-10 CN CN00814109A patent/CN1378519A/zh active Pending
- 2000-10-10 KR KR1020027004291A patent/KR20020062284A/ko not_active Application Discontinuation
- 2000-10-10 CZ CZ20021262A patent/CZ20021262A3/cs unknown
- 2000-10-10 BR BR0014621-8A patent/BR0014621A/pt not_active Application Discontinuation
- 2000-10-10 AU AU79178/00A patent/AU7917800A/en not_active Abandoned
- 2000-10-10 IL IL14873300A patent/IL148733A0/xx unknown
- 2000-10-10 WO PCT/EP2000/009971 patent/WO2001028911A1/de not_active Application Discontinuation
- 2000-10-10 RU RU2002110092/11A patent/RU2002110092A/ru unknown
- 2000-10-10 EP EP00969478A patent/EP1224143A1/de not_active Withdrawn
- 2000-10-10 JP JP2001531710A patent/JP2003512272A/ja active Pending
- 2000-10-10 PL PL00356123A patent/PL356123A1/xx unknown
-
2002
- 2002-03-21 NO NO20021405A patent/NO20021405L/no not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO0128911A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19948946A1 (de) | 2001-04-19 |
IL148733A0 (en) | 2002-09-12 |
WO2001028911A1 (de) | 2001-04-26 |
KR20020062284A (ko) | 2002-07-25 |
NO20021405D0 (no) | 2002-03-21 |
NO20021405L (no) | 2002-03-21 |
PL356123A1 (en) | 2004-06-14 |
CN1378519A (zh) | 2002-11-06 |
AU7917800A (en) | 2001-04-30 |
CZ20021262A3 (cs) | 2003-10-15 |
RU2002110092A (ru) | 2004-02-10 |
JP2003512272A (ja) | 2003-04-02 |
BR0014621A (pt) | 2002-06-11 |
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