EP1472170A1 - Friction-driven hoist - Google Patents
Friction-driven hoistInfo
- Publication number
- EP1472170A1 EP1472170A1 EP03704247A EP03704247A EP1472170A1 EP 1472170 A1 EP1472170 A1 EP 1472170A1 EP 03704247 A EP03704247 A EP 03704247A EP 03704247 A EP03704247 A EP 03704247A EP 1472170 A1 EP1472170 A1 EP 1472170A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive unit
- rails
- traction sheave
- elevator according
- rail
- 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
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
- B66B11/0035—Arrangement of driving gear, e.g. location or support
- B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
Definitions
- the invention relates to a traction sheave elevator with a car guided between rails, with rails arranged at an angle to the car rails for guiding a counter load, with a set of support cables on which the car and the counter load are suspended in a loose role and with at least one gearless motor, a traction sheave for the support cables and a brake-formed drive unit, the axial length of which is greater than its diameter, and preferably a counter pulley for a double suspension cable wrap around the traction sheave.
- a traction sheave elevator with a counter pulley is known for example from DE 24 41 992 AI, the guide rails not being shown there.
- the elongated drive unit is placed on the foundation of a machine room arranged on the upper floor of a building, which is sometimes undesirable.
- the drive unit is disc-like and is mounted on the long side of one of the two guide rails of the car or the counterweight. This has the effect that the vertical forces of the suspension cables acting on the traction sheave are transmitted to the guide rail in question, which must therefore absorb the entire forces.
- the drive unit is mounted on an auxiliary frame which is connected to the guide rail with vibration damping elements interposed. is screwed. The guide rail is thus subjected to bending.
- a disk-shaped drive unit is carried by a machine bed and is arranged over the upper end of one or more guide rails.
- the suspension load leads to an eccentric load and thus to the bending of the guide rails, which necessitates a reinforcing element which has disadvantages.
- a vibration-damped, disk-shaped drive unit mounted on a machine bed is arranged between all four guide rails of an elevator in a backpack design.
- Disc-shaped drive units have the disadvantage compared to designs with a greater axial length and smaller diameter that they have a high moment of inertia and must exert a higher drive torque.
- the drive unit In another arrangement without a machine room (DE 200 21 886 Ul), the drive unit, the axial length of which is greater than its diameter, is mounted on two additional supports arranged in parallel and spaced apart, the ends of which are embedded in the upper shaft walls or supported on wall brackets ,
- a carrier is displaceable parallel to itself in such a way that the drive unit can be moved between the two carriers during assembly or disassembly.
- the drive unit is mounted on the carrier and / or a plate and attached to it to arrange the upper ends of the guide rails of the car and / or the counterweight. As a result, the drive unit protrudes beyond the guide rails.
- additional supports and / or a plate are required and the drive unit can no longer be installed after the guide rails have been set up. The car and the counterweight are attached without pulleys and counter washers.
- a motor-gear drive unit is arranged on a concrete base projecting into the shaft at the same height and in one piece with the floor of the top stop.
- the disadvantage results from the protruding concrete base.
- the invention has for its object to install a gearless traction sheave drive in long construction for elevators with car and counter-load suspension in a loose role, that is, not in a backpack suspension, space-saving and low-effort machine room-free between already existing guide rails and thus without adjusting the elevator in the way, that the existing rope forces do not bring any bending and torsional forces onto the rails and the car frame.
- the invention is achieved by the features specified in claim 1.
- the dependent claims 2 to 10 indicate advantageous further developments.
- the advantages of the invention are that the vertical rope forces can act on the load-bearing rails in such a way that the line of gravity of the vertically acting rope forces runs through the cross sections of the rail profiles.
- FIG. 1 schematically shows an assembly of a self-supporting drive unit in the upper shaft area in a side and top view
- Fig. 2 schematically shows an assembly of a drive unit in the upper shaft area on an auxiliary carrier in side view
- Fig. 3 schematically shows an assembly of a further self-supporting drive unit in the upper shaft area in a side view.
- Both counter load rails 3 a, 3 i are arranged at the same distance from the side wall 1, whereby the counter load is guided parallel to the side wall 1.
- the rails 2, 3 are essentially arranged in a corner and at right angles to one another.
- An imaginary escape line through the car rails 2a, 2i thus forms approximately a right angle with the side wall 1.
- the rail 2i has a different distance from the rails 3a and 3i with respect to the side wall 1, specifically the distance of the rails 3a, 3i from the side wall 1 is less than the distance from the rail 2i to the side wall 1. This means that the inner car rail 2i is arranged in the corner in front of an imaginary escape line through the counter-load rails 3a, 3i.
- the car rail 2i and the counter load rails 3a, 3i are shown in the drawing; in the top view, the car rails 2a, 2i and the counter load rail 3a can be seen.
- the counter-load rail 3i which is not visible here, is shown in broken lines. It is shorter than the other rails 2a, 2i, 3a.
- the rails 2i, 3i are referred to as inner rails because they lie on the inside in the imaginary corner which the rails form, while the outer rails 2a, 3a thus designated lie on the outer ends of the imaginary corner.
- the rails 2a, 2i, 3a, 3i usually have special profiles in T, L or special shape for management and stabilization tasks. You can either pull in one piece or from z. B. two individual rails.
- the counter-load rail 3a and the car rails 2a, 2i are supported against vibration at their upper ends to the shaft ceiling or shaft wall.
- a drive unit 4 in long construction consisting of at least one gearless motor 4a, a traction sheave 4b and a brake 4c, is in the example in the upper region of the rails 2a, 2i, 3a, 3i in a horizontal position and arranged parallel or obliquely to the side wall 1 so that the drive unit 4 lies in the clear space between the rails 2i, 3a.
- the drive unit 4 is fastened to the inner car rail 2i and the outer counter-load rail 3a. Accordingly, the line of gravity 19 of the sum of the attacking vertical forces of the suspension cables runs through the area formed by the cross sections of the rail profiles of the rails 2i, 3a. This area is shown in dashed lines. This has the great advantage that the rails 2i and 3a are loaded essentially only vertically, that is to say in the longitudinal axis of the rail, and cannot be kept on bending or torsion and consequently relatively slim and therefore low in material.
- the center of gravity of the sum of the attacking vertical suspension cable forces is, according to FIG. 1, for example at point F, which marks the center of the attacking vertical forces.
- the suspension cable forces are derived into the foundation of a shaft pit, not shown in detail.
- the drive unit 4 is arranged in a self-supporting manner between the two rails 2i, 3a.
- the drive unit 4 takes over the function of a connection carrier. This is shown schematically in the side views according to FIGS. 1 and 3.
- the drive unit 4 can also be placed on an auxiliary carrier 5 and this auxiliary carrier 5 can be fastened between the two rails 2i and 3a.
- additional bearing blocks 6, 7 are fastened to the rails 2i, 3a to fasten the drive machine 4 to the rails 2i and 3a.
- the bearing blocks 6, 7 consist in a known manner of support structures which are screwed or welded to the rails 2i, 3a.
- the two carrier elements 16, 17 can advantageously also be part of the self-supporting drive unit 4 or, according to a variant shown in more detail in FIG. 3, form a single, continuous carrier plate 4d which is firmly connected to the drive unit 4.
- the carrier element 16 is attached to the car rail 2i in a torsionally rigid manner via a torque support 10.
- the torque support 10 is located next to the car rail 2i, with rubber inserts 11, 12 ensuring elastic fastening to the car rail 2i and to the drive unit 4.
- one of the bearing blocks 6, 7 or both bearing blocks 6, 7 directly form a torque support for the drive unit 4.
- the car and the counterweight are connected to each other in a "loose roller suspension” via a set of suspension cables (not shown in more detail).
- the suspension cables come from below over the traction sheave 4b, further around a counter pulley 13 and back again to the traction sheave 4b, loop around them again and only then run down again.
- a large wrap angle is particularly important in the case of traction sheaves of smaller diameter in order to increase the driving or braking force.
- a small traction sheave has the advantage that the drive torque is small and thinner ropes can be selected. With the choice of several thin ropes, operational safety increases at the same time. In addition, the fictitious surface pressure between the ropes and the traction sheave is reduced due to the increased rope surface.
- the counter disk 13 is fastened in the example according to FIG. 1 via a holder 14 to the drive unit 4 itself or to the carrier element 16.
- One end of the suspension cable set is suspended in a suspension 15.
- the suspension is expediently attached to the underside of the drive unit 4 or to the carrier element 17.
- the drive unit 4 can be installed from the inside of the shaft or from the outside in the case of permanently installed rails 2a, 2i, 3a, 3i.
- the drive unit 4 only needs to be placed on the bearing blocks 6, 7.
- the free spaces between the suspension 15 for the suspension cables and the holder 14 for the counter plate 13 and between the side wall 1 of the shaft, the inner car rail 2i and the inner counterload rail 3i can be used advantageously for peripheral drive devices, such as a terminal box, a converter, a brake control device and / or a forced ventilation device.
- peripheral drive devices such as a terminal box, a converter, a brake control device and / or a forced ventilation device.
- the drive Unit 4 is not self-supporting between the outer counter load rail 3a and the inner car rail 2i, but is seated on an auxiliary carrier 5. This is placed over the rubber plates 8, 9 on the pedestals 6, 7.
- the braking device 4c is on the motor 4a side.
- the traction sheave 4b of the drive unit 4 is overhung, which, among other things, makes it easier to put the ropes on.
- the bearing block 7 and the suspension 15 for the support cables are combined into a single component, and the holder 14 for the counter disk 13 is fastened to the auxiliary support 5 and not to the drive unit 4.
- the drive unit 4 sits self-supporting between the outer counter load rail 3a and the inner car rail 2i on the bearing blocks 6, 7 of the rails 3a, 2i equipped with rubber inserts 8, 9.
- the holder 14 for the counter plate 13 and the suspension cable suspension 15 are attached to the underside of the carrier plate 4d of the drive unit 4.
- the suspension cable suspension 15 could also be attached to the bearing block 7 or be made in one piece with the bearing block 7.
- One of the bearing blocks 6, 7 or both bearing blocks 6, 7 additionally take on the function of torque support for the drive unit 4.
- the traction sheave elevator can also be designed without a counter pulley 13.
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)
- Types And Forms Of Lifts (AREA)
- Braking Arrangements (AREA)
- Mechanical Operated Clutches (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10205170 | 2002-02-07 | ||
DE10205170A DE10205170B4 (en) | 2002-02-07 | 2002-02-07 | Traction elevator |
PCT/DE2003/000202 WO2003066498A1 (en) | 2002-02-07 | 2003-01-25 | Friction-driven hoist |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1472170A1 true EP1472170A1 (en) | 2004-11-03 |
EP1472170B1 EP1472170B1 (en) | 2007-01-24 |
Family
ID=27634802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03704247A Expired - Lifetime EP1472170B1 (en) | 2002-02-07 | 2003-01-25 | Friction-driven hoist |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1472170B1 (en) |
CN (1) | CN1266020C (en) |
AT (1) | ATE352511T1 (en) |
AU (1) | AU2003206638A1 (en) |
DE (2) | DE10205170B4 (en) |
ES (1) | ES2277059T3 (en) |
WO (1) | WO2003066498A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7493989B2 (en) | 2003-11-24 | 2009-02-24 | Kone Corporation | Elevator suspension arrangement |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502004002404D1 (en) * | 2003-10-13 | 2007-02-01 | Wittur Ag | DRIVE SYSTEM FOR TIGHT ENGINE ROOMS |
DE10348151A1 (en) * | 2003-10-13 | 2005-05-19 | Wittur Ag | Drive system for narrow machine rooms has drive mechanism, opposite pulley, cable fixtures and/or additional deflection pulleys on elevator car |
DE102005002607A1 (en) * | 2005-01-20 | 2006-08-10 | System Antriebstechnik Dresden Gmbh | Elevator, with a cabin riding between guide rails, has the machine and emergency brake in a cube structure mounted at the top of the shaft with an angle carrier at the shaft wall and roof |
ES2371919T3 (en) * | 2005-03-01 | 2012-01-11 | Industrias Montañesas Eléctricas Mecánicas, S.L. | MACHINE, ELEVATOR SYSTEM AND ELEVATOR WITHOUT FOUR MACHINES. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5048646A (en) * | 1973-09-07 | 1975-04-30 | ||
FI95689C (en) * | 1994-06-23 | 1996-03-11 | Kone Oy | Elevator machinery |
FI96198C (en) * | 1994-11-03 | 1996-05-27 | Kone Oy | Pinion Elevator |
US5899300A (en) * | 1996-12-20 | 1999-05-04 | Otis Elevator Company | Mounting for an elevator traction machine |
DE19712646C2 (en) * | 1997-03-26 | 2000-07-13 | Heinzerling Gmbh | Rope hoist |
CN1097026C (en) * | 1997-09-26 | 2002-12-25 | 东芝株式会社 | Electric elevator |
CZ291883B6 (en) * | 1997-12-23 | 2003-06-18 | Inventio Ag | Cable elevator with a drive plate |
FI111622B (en) * | 1999-01-27 | 2003-08-29 | Kone Corp | Drive wheel lift and flywheel operation |
DE60041991D1 (en) * | 2000-05-26 | 2009-05-20 | Mitsubishi Electric Corp | LIFT DEVICE |
DE20021886U1 (en) * | 2000-12-23 | 2001-03-15 | Ziehl-Abegg GmbH & Co KG, 74653 Künzelsau | Traction sheave elevator with a backpack-style elevator car |
-
2002
- 2002-02-07 DE DE10205170A patent/DE10205170B4/en not_active Expired - Lifetime
-
2003
- 2003-01-25 CN CN03800481.XA patent/CN1266020C/en not_active Expired - Lifetime
- 2003-01-25 EP EP03704247A patent/EP1472170B1/en not_active Expired - Lifetime
- 2003-01-25 DE DE50306373T patent/DE50306373D1/en not_active Expired - Lifetime
- 2003-01-25 WO PCT/DE2003/000202 patent/WO2003066498A1/en active IP Right Grant
- 2003-01-25 ES ES03704247T patent/ES2277059T3/en not_active Expired - Lifetime
- 2003-01-25 AT AT03704247T patent/ATE352511T1/en not_active IP Right Cessation
- 2003-01-25 AU AU2003206638A patent/AU2003206638A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO03066498A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7493989B2 (en) | 2003-11-24 | 2009-02-24 | Kone Corporation | Elevator suspension arrangement |
Also Published As
Publication number | Publication date |
---|---|
CN1266020C (en) | 2006-07-26 |
WO2003066498A1 (en) | 2003-08-14 |
DE10205170B4 (en) | 2005-07-21 |
EP1472170B1 (en) | 2007-01-24 |
AU2003206638A1 (en) | 2003-09-02 |
DE10205170A1 (en) | 2003-08-28 |
CN1518519A (en) | 2004-08-04 |
ES2277059T3 (en) | 2007-07-01 |
DE50306373D1 (en) | 2007-03-15 |
ATE352511T1 (en) | 2007-02-15 |
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