DE102007046231A1 - Traction sheave for ropes or belt, has hub and multiple annular disks, where each disk has traction surface in its outer radial area on one of axial front faces - Google Patents

Traction sheave for ropes or belt, has hub and multiple annular disks, where each disk has traction surface in its outer radial area on one of axial front faces

Info

Publication number
DE102007046231A1
DE102007046231A1 DE102007046231A DE102007046231A DE102007046231A1 DE 102007046231 A1 DE102007046231 A1 DE 102007046231A1 DE 102007046231 A DE102007046231 A DE 102007046231A DE 102007046231 A DE102007046231 A DE 102007046231A DE 102007046231 A1 DE102007046231 A1 DE 102007046231A1
Authority
DE
Germany
Prior art keywords
traction sheave
according
hub
characterized
lamella
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.)
Ceased
Application number
DE102007046231A
Other languages
German (de)
Inventor
Rudolf Fuka
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.)
RUDOLF FUKA GmbH
Original Assignee
RUDOLF FUKA GmbH
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 RUDOLF FUKA GmbH filed Critical RUDOLF FUKA GmbH
Priority to DE102007046231A priority Critical patent/DE102007046231A1/en
Publication of DE102007046231A1 publication Critical patent/DE102007046231A1/en
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms; Pulleys; Sheaves
    • F16H55/32Friction members
    • F16H55/36Pulleys
    • F16H55/49Features essential to V-belts pulleys
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms; Pulleys; Sheaves
    • F16H55/32Friction members
    • F16H55/36Pulleys
    • F16H55/50Features essential to rope pulleys

Abstract

The traction sheave (1) has a hub (2) and multiple annular disks (3). Each disk has a traction surface (9) in its outer radial area on one of the axial front faces (8). Each disk has a main level which is arranged perpendicular to a rotational axis of the disk. The traction surface is inclined opposite to the main level by an angle. Multiple disks are directly or indirectly connected with the hub in a torque proof manner. Independent claims are included for the following: (1) a hub for a traction sheave; and (2) an annular disk for a traction sheave.

Description

  • The The invention relates to a traction sheave for ropes and / or Belt. Such traction sheaves are mainly used in lifting equipment used to drive the payload, especially in elevators to drive the car.
  • Of the so-called traction sheave drive is the focus in elevators with a counterweight for the car used, so where the carrying rope is not wound on a drum becomes. In usual versions of elevators with drive pulley engine simultaneously several ropes next to each other by friction of the traction sheave taken. The traction sheave is provided with grooves, the wedge-shaped or semicircular cross section. At the free Ends of the suspension ropes is usually the counterweight suspended. Car and counterweight in such lifts usually run in special tours. The traction sheave drive has opposite a drum drive, where the suspension cable is wound on a drum, the advantage that when putting on of the car or the counterweight due to failure of the limit switches the ropes can slip on the traction sheave, without damaging the engine. Furthermore, by This design also ensures that when the car is overloaded this can not be raised due to a slip between Suspension cables and traction sheave. For those admitted in Germany Forms of passenger lifts will perform this function as overload protection regularly reviewed by regulators.
  • When Tragmittel are usually stranded wire ropes certain Machinery used, which is characterized by a high cross-sectional filling with wires, a great flexibility, long life and low wear. Too much stress on the Avoid ropes due to internal friction and rope damage Due to too small bending radii of the ropes were to be avoided in the Past pulley diameter of at least 40 times Rope diameter considered appropriate. Typically draw traditional lifts with traction sheave drive in Buildings characterized by being on the building or in the upper floor of a drive room above the elevator shaft is arranged. If the drive space is located within the building outline, This causes the top floor not with the elevator can be approached. Otherwise, the drive compartment on the Roof be provided.
  • Of the Drive is usually via mains powered Electric motors, usually via a worm gear, by the speed of the drive motor to an appropriate pulley speed decrease. For standard applications usually a car speed of up to provided at 2 m / s. The drive via a worm gear has the additional advantage that with appropriate Design of the gearbox self-locking in case of failure of the engine, z. B. in power failure occurs, so that an additional Assurance against unwanted movement of the car given is.
  • Traction sheaves of the type mentioned are usually made as a cast part of gray cast iron. In this case, the areas of the grooves for receiving the support cables are partially hardened. The material combination with the steel cables results in an appropriate coefficient of friction, so that at the wrap angles, which result from the largely fixed arrangement of the components of an elevator drive, on the one hand a sufficient power transmission is ensured and on the other hand, the function is given as a slip clutch. Examples of such traction sheaves and their further developments are in DE 31 28 660 C2 described.
  • Out DE 35 32 624 C2 a development of such a traction sheave is known, in which the radial outer edge is rotationally elastic connected to the grooves for receiving the support cables relative to the hub connected to the drive via elastic intermediate elements, so that occurring in particular when starting and stopping the car shock loads are attenuated and both Load peaks as well as additional loads due to vibrations in both the suspension rope and in the drive can be reduced. All factors which lead locally or temporally to load peaks in the suspension cable have a strong influence on the service life of such cables. The service life of the ropes is a major cost factor in the operation of elevator systems. Wear on the suspension ropes not only leads to costs in that the ropes have to be replaced, but also due to the downtime associated with the replacement of the ropes.
  • The traction sheaves are subject to wear by the constant slight slip, which is required for power transmission to the rope. Of course, damage to the ropes also leads to increased wear on the traction sheaves if the ropes are not replaced immediately. An exchange of the traction sheave also brings an operational standstill with it. A particular problem with older lifts can result from the fact that due to the very large variety of types of traction sheaves, the currently required traction sheave is not available during maintenance operation and must first be ordered from the elevator manufacturer. Partial traction sheaves older types of lifts are no longer available from the manufacturer and must be in a specialized Traction sheave suppliers ordered and sometimes only be made. The associated waiting times for a replacement part may lead to considerable downtimes.
  • This is especially true in the production area. From the DE 36 26 045 A1 Therefore, for example, a traction sheave is known, which is assembled from several parts, wherein in the groove base for receiving the drive rope, a wear insert is provided which is such that with the transmission of the movement of the traction sheave on the rope necessarily connected slip and thus material wear essentially takes place at the deposit and the deposit is divided into sections, so that the insert can be replaced as a wearing part, without having to remove the rope from the traction sheave.
  • Similar Problems with premature wear of suspension cables arise, arise when the traction sheaves wear out prematurely. In the surface hardening of the rope grooves in traction sheaves cast iron with lamellar graphite and ferrosilicon aggregate, by the low-friction conditions with the support rope made and on the other hand, a sufficient protection ensured against surface wear, was a premature wear of such a traction sheave observed due to cracking due to surface hardening the entire radial circumference of the traction sheave went back.
  • In the EP 1 471 030 A1 Therefore, a traction sheave and a manufacturing method for such a traction sheave is proposed, in which the traction sheave is circumferentially cured in sectors, so that each sectors with a surface hardening on the radial circumference alternate with smaller sectors, in which no circumferential hardening has occurred. By this training, stresses occurring by the curing should be easier to solve and thus the formation of cracks are largely prevented, so that the overall result is a longer service life of such a traction sheave.
  • A significant cost factor in the installation of lifts with traction sheave drive is usually arranged above the machine house, for which either the roof skin must be broken, or the top floor can not be operated, where the use of a lift would be particularly interesting. Also problematic is the arrangement of the machine house in buildings that are to be retrofitted with a lift with traction sheave drive. To make such lifts with traction sheave in this regard more attractive, is in the DE 199 48 584 A1 proposed a drive for personal cable lifts, which is constructed of a drive unit of motor and gear with traction sheave and particularly flat, so that it can be mounted laterally on the wall of the hoistway. This will allow the installation of lifts with traction sheave, without a separate engine room would be required.
  • to Avoidance of a top-side machine house were many times hydraulic lifts installed. This is the cab or the car either directly via a hydraulic ram operated, resting on the cab, or indirectly via a rope arrangement. In particular, the latter embodiment allows larger travel distances without a correspondingly far telescopic hydraulic cylinder required would be that would cause very high costs. A problem with the operation of hydraulic lifts is especially with long service life of maintenance when occurring Leaks as well as to avoid environmental damage necessary measures for the discharge of hydraulic oil.
  • Especially when, due to wear, a hydraulic cylinder must be replaced, a conversion to a cable drive offers. This is in the DE 101 54 171 A1 proposed a conversion kit for hydraulic lifts. Again, part of the conversion kit is a compact drive unit of engine and transmission and traction sheave, which can be arranged in the elevator shaft. The solution proposed there assumes that in the existing elevator shaft also additionally the counterweight for the car must be accommodated. In order to make the drive unit correspondingly compact, therefore, a deflection of the cables is provided by utilizing the pulley principle, so that lower forces act on the cable strands. Due to the fact that in the existing elevator shaft in addition to the already existing cab nor the counterweight must be accommodated, it follows that traction sheave and pulleys for the ropes only very low height and width may claim, ie they must be in relation to the usual Traction sheaves and pulleys have small diameter. The document specifies diameters of less than 20 cm, more preferably about 10 cm or less. According to the teaching of the document, special flat-band hoisting ropes are absolutely necessary for this purpose. Such special cables, in turn, are very expensive, but according to the concept proposed in the document this is more than compensated for by the fact that the cab of the old hydraulic elevator can continue to be used.
  • For a particularly space-saving hoist system, in particular elevator installation or a Particularly good utilization of the available space for receiving the payload is in the EP 1 777 189 A1 proposed to use V-ribbed belt instead of the usual support cables. V-ribbed belts are very flexible and also allow pulley rotation on the V-belt back. By using V-ribbed belts, the use of much smaller deflection pulleys should be possible than with conventional suspension ropes. In the mentioned document diameters of 80 or 65 mm are called. The traction sheave should be a conventional multi-roller traction sheave, which is adapted to the width of the V-ribbed belt used accordingly. Compared to conventional traction sheaves, the flanks of the grooves should be adapted to the flanks of the V-ribbed belt and preferably have a flank angle of about 90 °. A fundamental disadvantage of V-ribbed belts could be seen in the fact that the steel cables actually embedded in the V-ribbed belt can not be immediately visually inspected for their condition and either technical aids such as X-ray equipment have to be used for condition testing or the V-ribbed belts used are disregarded their actual condition must be replaced in a certain turn.
  • Of the The invention is therefore based on the object known elevator drives continue to improve and in particular the economy too increase.
  • The Task is solved according to the invention a traction sheave of the type mentioned above with the features of claim 1. By the inventive design A traction sheave makes it possible for a variety of various applications a traction sheave few universal components and thus instead the previously used large variety of types, some produced in the smallest series or individual pieces had to achieve significant cost benefits. This is especially true with regard to spare parts requirements for older lifts, where often no original parts are available anymore.
  • By the modular structure of the traction sheave, the individual Elements related to material and surface treatment be optimized, so that the performance and service life a traction sheave according to the invention over the State of the art is significantly improved. For example, you can the slats of a traction sheave according to the invention provided with an optimal surface hardness without the problem known from the prior art the formation of stress cracks and thus a restriction the duration of use or even the risk of breakages with it connected is.
  • For the replacement supply, if a traction sheave due to wear exchange, there is the further advantage that only a small number of components must be kept in stock, for a variety of different elevator types To provide replacement. Accordingly, at the repair of elevator systems is based on stored components, or missing due to standardization in no time Components are manufactured, which reduces downtime shorten a lift installation during maintenance and repair leaves. This has particular economic effects in Areas where elevator systems necessary for the production flow are, or otherwise directly affect the economic Yield or functioning of a building or company has, for example, Bettenfahrstühle in hospitals.
  • Farther is also due to the traction sheave according to the invention the use of rope sets possible, the different Have rope diameter. In particular, if at the same time the output shaft of the Elevator drive the hub of the invention Traction sheave forms, it is possible in connection with thin high-strength suspension cables, for example, with a Diameter of 4 mm to build extremely compact drives. By the feasible small pulley diameter it is possible To use gearless drives effectively and efficiently, as a Compensation of large pulley diameter by a Reduction is not required.
  • The particularly preferred angle ε of the driving surface of about 20 ° is particularly suitable in connection with conventional suspension cables for lifts and for V-ribbed belts DIN 7867 Also known as poly V-belt. An adjustment of the distance of the slats on the rib distance of the V-ribbed belt as well as for adjustment to the rope diameter used can be advantageously carried out by inserting spacers between adjacent slats. The Distanzschei ben can be provided in different thicknesses for more accurate adjustment of the distance.
  • Of the alternatively preferred larger angular range for the angle ε of the driving surface of preferably 45 ° is particularly suitable for flat profiled V-ribbed belt with wedge angles of 90 °. Such wedge angle are still sufficient to drain the V-ribbed belt without To prevent thrust washers.
  • Further expedient and advantageous embodiments are defined in the subclaims. Their advantages result from the following Be scription.
  • The Invention will be described below with reference to the drawings Embodiments explained in more detail become. Show it:
  • 1 a perspective view of a traction sheave according to the invention;
  • 2 the traction sheave 1 in side view;
  • 3 the traction sheave 2 on average;
  • 4 an enlarged section 3 ;
  • 5 the traction sheave from the 1 to 4 in plan view;
  • 6 a hub of a traction sheave according to the invention in longitudinal section;
  • 7 the hub off 6 in plan view;
  • 8th a lamella of a traction sheave according to the invention in plan view;
  • 9 the slat off 8th in longitudinal section;
  • 10 a spacer of a traction sheave according to the invention in plan view;
  • 11 a perspective view of another traction sheave according to the invention;
  • 12 the traction sheave 11 in plan view;
  • 13 the traction sheave 12 in partial section;
  • 14 an enlarged section 13 ; and
  • 15 the traction sheave from the 10 to 14 in side view.
  • In 1 is a traction sheave according to the invention, in total with 1 denotes, for ropes, in particular steel cables as suspension cables of elevators or the like, or belts, such as a V-ribbed belt, shown in perspective view. Depending on the configuration, even simultaneous operation with steel cables and V-ribbed belts is possible. The traction sheave comprises a hub 2 , The arrangement of the hub 2 is out 3 very clearly visible. Furthermore, the illustrated traction sheave 1 a number of slats 3 in the illustrated embodiment of the invention to a section 4 the hub 2 are included, compare 3 , The individual slats 3 have through holes 5 on, like out 8th is recognizable. Through the through holes 5 are screws 6 stuck, for example, hexagon socket screws after DIN 912 , and in corresponding threaded holes 7 in a flange section 16 the hub 2 screwed in the 6 and 7 are clearly visible. In practice, it has proved to be advantageous if the axial screwing of the slats 3 with the hub 2 through twelve evenly distributed over the circumference screws 6 is formed. This causes the slats 3 frictionally with the hub 2 evenly and torsionally connected and it can be achieved at the same time a large safety factor. Furthermore, such a number of distributed over the circumference screws 6 sufficient for a wide power range with appropriate adjustment of the screw diameter, so that a large degree of standardization for virtually all occurring applications can be obtained.
  • How good 2 but in particular the enlarged cut-out sectional view in FIG 4 can be seen, each lamella points 3 in its radially outer region at least on one, preferably both axial end faces 8th a driving surface 9 on. As best with respect to 9 to understand, rejects each slat 3 a main level 24 along its main extension, perpendicular to the axis of rotation 10 the slat 3 is arranged, and the driving surfaces 9 are opposite the main level 24 inclined by an angle ε. This results between adjacent lamellae 3 a V-shaped groove 11 or groove for receiving the rope (not shown). By the arrangement of a package of slats 3 results in a mehrrillige traction sheave 1 , According to the number of grooves or V-grooves 11 more ropes can be placed, or it can be a correspondingly wide V-ribbed belt (also not shown) are placed. Due to the wedge shape of the grooves 11 When loaded with a rope, in addition to the transmission of torque in the circumferential direction, shear forces also occur in the package of lamellae 3 in the axial direction. The screws 6 therefore also serve to accommodate the axial thrust forces and transmission to the hub body 2 ,
  • Likewise good from the 2 to 4 , but also the 13 to 15 , can be seen, an adjustment of the distance of the slats 3 from each other on the rib distance of the V-ribbed belt and to adjust to the rope diameter used advantageously by inserting spacers 12 between adjacent slats 3 respectively. The spacers 12 may be provided in different thicknesses for more accurate adjustment of the distance. With several distances slices 12 can the distance between two slats 3 be increased accordingly. Due to different distances between the slats 3 can even simultaneously ropes of different diameters with the traction sheave according to the invention 1 be driven. For smallest rope diameters are no spacers 12 between adjacent slats 3 used. An example embodiment of a spacer 12 is in 10 shown.
  • As in the 1 and 3 Good to see, the hub points 2 in this embodiment of the invention, a hole 13 , here a cylindrical hole, for receiving a (not shown) output shaft of a prime mover. As in particular in the plan view of the traction sheave 1 in 5 The hub is clearly visible 2 in the area of the hole 13 a feather keyway 14 on. In the feather keyway 14 a feather key can be received to transmit torque from the output shaft of a prime mover to the hub 2 and thus the traction sheave 1 and finally to receive power transmission to the rope (s) or belt (s).
  • Instead of a keyway can according to the invention, any other suitable form-fitting or frictional shaft-hub connection for connecting the hub 2 be provided with the output shaft of a prime mover, z. B. a splined, serrated or polygonal profile, or in particular a conical seat, as in 6 shown. Particularly advantageous is a conical seat with a conical lateral surface 15 with a slope of about 1:10. Keyway and the said conical seat are widely used in hoist engines and therefore preferable in terms of spare parts business.
  • In the in the 1 to 5 shown embodiment of the invention, the outer contour of the peripheral surface (peripheral portion 4 ) of the hub 2 a number of takeaways 17 on and the slats 3 and / or the spacers 12 can have a corresponding inner profile in the form of drivers in their free hole cross-section. This allows the installation of a traction sheave according to the invention 1 be facilitated because an alignment of the individual slats 3 and slices 12 on aligned through holes 5 is greatly simplified. In addition, by such a positive connection an additional rotation between slats 3 and hub 2 produced.
  • The traction sheave according to the invention is particularly suitable 1 in connection with modern gearless drives, in which frequency-controlled three-phase motors without gearbox are used 1 possible small diameter of a traction sheave 1 and the particular suitability for high-strength ropes with a small diameter of z. B. only 4 mm give a good adaptation of the load by the elevator to the motor at the same time possible high speeds.
  • In the in the 6 and 7 shown embodiment of a hub according to the invention 2 a drive pulley according to the invention 1 is instead of the driving grooves 17 on the for receiving the plurality of annular lamellae 3 provided peripheral portion 4 a non-circular cross-section provided in the form of flats 18 in the form of one or more, preferably one to three, segments of the cross section of the hub 2 ,
  • In the 10 shown spacer 12 has corresponding constrictions 19 in their free hole cross-section 20 on. By this configuration of hub 2 and spacer 12 can also be a positive rotation between spacer 12 and hub 2 obtained with the aforementioned advantages. Opposite the drivers 17 However, this configuration is both in the manufacture of the hub body 2 , as well as the spacer 12 , much cheaper. It is also possible, the free hole cross-section of a lamella 3 to design accordingly. However, it may be more appropriate, as in 8th shown a round hole 21 in the lamella 3 provided. This is advantageous in terms of production if a close fit with the peripheral section 4 of the hub body 2 and a particularly high concentricity by grinding the diameter of the hole 21 to be obtained.
  • The spacers 12 expediently have the same hole pattern of the through holes 5 for receiving the screws 6 on like the slats 3 , Suitably, the spacers are with respect to the core hole 20 to a larger diameter than the hole 21 the slats 3 tolerated the reassembly of the traction sheave 1 to facilitate.
  • In the 8th and 9 is a lamella according to the invention 3 for a traction sheave 1 shown in more detail. The slat 3 has in its radially outer region at least one, better on both of its axial end faces 8th a driving surface 9 on. The driving surface 9 is opposite to a main level 24 along the main extension of the lamella 3 perpendicular to the axis of rotation 10 the slat 3 by an angle ε, preferably 17 ° to 23 °, more preferably by 20 °, inclined.
  • Advantageously, the lamella is made of a mild steel grade S355, a tempered steel, z. C45 (material number 1.0503) or egg a nitriding steel, z. B. Material number 1.8506. In terms of manufacturing technology, it is particularly cost-effective if the material is present as a metal sheet of suitable thickness, so that the contour of the lamella 3 or the spacer 12 can be generated by laser cutting. Appropriately, the axial side surfaces 8th flat ground to get a good run. Furthermore, the slat 3 expedient one or in particular on both sides also by grinding with the driving surface 9 Mistake.
  • For stockpiling to semi-finished products and to avoid flow due to surface pressure, it is practical if that slats 3 and spacers 12 made of the same material
  • In order to provide a good wear resistance and to obtain a good reproducibility of the coefficient of friction and thus the frictional forces with the drive rope or drive belt, the lamella 3 at least in the area of the driving surface 9 surface hardened. Manufacturing technology is particularly advantageous if the blade 3 at least in the area of the driving surface 9 is gas-nitrated. As a result, the curing can be carried out particularly low distortion. Nitriding can be carried out by a plasma-assisted nitriding, as it is available, for example under the name IONIT ® from METAPLAS IONON Oberflächenveredelungstechnik GmbH, Bergisch Gladbach, or by a method as in EP 1 795 622 A1 or EP 0 753 599 B2 is described.
  • The radially outer residual thickness of the lamella 3 is expediently about 20% to 40% of the total thickness of the lamella 3 in order to avoid stress peaks and to maintain a material thickness sufficient for a certain toughness of the material in the area of the hardening zone.
  • The particularly preferred angle ε of the driving surface 9 of 20 ° is particularly suitable in conjunction with conventional suspension ropes for lifts and for V-ribbed belts DIN 7867 Also known as poly V-belt. A setting of the distance of the slats 3 on the rib spacing of the profile series used a V-ribbed belt and to adjust to the rope diameter used can advantageously by inserting the spacers 12 between adjacent slats 3 respectively. The spacers 12 may be provided in different thicknesses for more accurate adjustment of the distance and correspondingly one or more spacers 12 between every two slats 3 to be ordered.
  • The spacers 12 preferably have an outer diameter which is smaller than the position of the radially inner edge of the driving surface 9 the slats 3 , This forms between the one V-groove 11 forming propellant surfaces 9 the slats 3 a footwell that prevents dirt particles between lamellae 3 and drive rope and thus affect the friction. When using V-ribbed belts, this measure ensures that the V-ribbed belt only with its designated flanks the traction sheave 1 touched and thus a sitting on the rib tips and thus nonspecific rubbing conditions are avoided, which can lead to unwanted vibrations in the V-ribbed belt and increased wear. From the width of the footwell, which is characterized by the thickness of the between two slats 3 used spacers 12 and the rope diameter can be calculated to have an undercut angle that is significant for the design of the drive, which is abbreviated α in technical jargon.
  • The in the 11 to 15 shown driving pulley according to the invention 1 indicates as a special feature compared to in the 1 to 5 shown embodiment, that the slats 3 and spacers 12 via an axial screw connection by means of screws 6 with a ring spring clamping set 22 are connected. The inner ring 23 of the annular spring clamping set 22 Can either be a hub 2 be viewed or frictionally connected to a hub. The hub may be formed in this embodiment by the (not shown) output shaft of a drive unit. This embodiment of the invention can be a particularly compact design of a drive with traction sheave 1 result. The direct attachment to the output shaft a particularly simple and inexpensive construction is obtained. In the illustrated embodiment, a keyway is 14 in the package of slats 3 and spacers 12 as well as inner ring 23 of the annular spring clamping set 22 intended.
  • Further embodiments and embodiments of the traction sheave according to the invention 1 , the hub 2 and the lamella 3 are possible within the scope of the entire disclosure of this application.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited patent literature
    • - DE 3128660 C2 [0005]
    • - DE 3532624 C2 [0006]
    • - DE 3626045 A1 [0008]
    • - EP 1471030 A1 [0010]
    • - DE 19948584 A1 [0011]
    • DE 10154171 A1 [0013]
    • EP 1777189 A1 [0014]
    • EP 1795622 A1 [0052]
    • EP 0753599 B2 [0052]
  • Cited non-patent literature
    • - DIN 7867 [0020]
    • - DIN 912 [0039]
    • - DIN 7867 [0054]

Claims (23)

  1. Traction sheave 1 ) for ropes and / or straps, with a hub ( 2 ) and a plurality of annular lamellae ( 3 ), each lamella ( 3 ) in its radially outer region at least on one of its axial end faces ( 8th ) a driving surface ( 9 ), each lamella ( 9 ) a main level ( 24 ) perpendicular to the axis of rotation (FIG. 10 ) of the lamella ( 3 ), wherein furthermore the driving surface ( 9 ) opposite the main level ( 24 ) is inclined by an angle ε, and wherein the plurality of fins ( 3 ) directly or indirectly against rotation with the hub ( 2 ) connected is.
  2. Traction sheave 1 ) according to claim 1, characterized in that the plurality of fins ( 3 ) are connected to each other for receiving thrust forces in the axial direction non-positively and / or positively.
  3. Traction sheave 1 ) according to one of the preceding claims, characterized in that between at least two of the lamellae ( 3 ) one or more spacers ( 12 ), the distance between the lamellas ( 3 ) to each other to set in a predetermined amount.
  4. Traction sheave 1 ) according to claim 3, characterized in that one or more spacers ( 12 ) are provided with the same or different thickness.
  5. Traction sheave 1 ) according to one of claims 1 to 4, characterized in that the hub ( 2 ) on the for receiving the plurality of annular lamellae ( 3 ) provided peripheral portion ( 4 ) has a non-circular cross-section, preferably by flattening ( 18 ) in the form of one or more segments of the cross-section of the hub ( 2 ), and that the plurality of annular lamellae ( 3 ) and / or spacers ( 12 ) corresponding constrictions ( 19 ) of their free hole cross-section ( 20 . 21 ) exhibit.
  6. Traction sheave 1 ) according to claim 5, characterized in that the number of flats ( 18 ) or constrictions ( 19 ) Is 1 to 3.
  7. Traction sheave 1 ) according to one of claims 1 to 5, characterized in that the outer contour of the peripheral surface ( 4 ) the hub ( 2 ), which are used to hold the slats ( 3 ) has the shape of a splined shaft or a polygonal profile and the free cross-section of the hole ( 21 ) of the slats ( 3 ) has a corresponding inner profile.
  8. Traction sheave 1 ) according to one of claims 1 to 4, characterized in that lamellas ( 3 ) and hub ( 2 ) by radially between hub ( 2 ) and lamellae ( 3 ) arranged annular spring clamping elements are frictionally connected together.
  9. Traction sheave 1 ) according to one of claims 1 to 8, characterized in that the lamellae ( 3 ) via an axial screw connection with the hub ( 2 ) are connected.
  10. Traction sheave 1 ) according to one of claims 1 to 4, characterized in that the lamellae ( 3 ) via an axial screw connection with an annular spring clamping set ( 22 . 23 ) and via this frictionally with the hub ( 2 ) are connected.
  11. Traction sheave 1 ) according to one of the preceding claims, characterized in that the hub is formed by the output shaft of a drive unit.
  12. Traction sheave 1 ) according to claim 4, characterized in that lamellas ( 3 ) and spacers ( 12 ) are made of the same material.
  13. Traction sheave 1 ) according to any one of claims 9 or 10, characterized in that the axial screwing of the slats ( 3 ) with the hub ( 2 ) by twelve screws distributed evenly around the circumference ( 6 ) is formed.
  14. Hub ( 2 ) for a traction sheave ( 1 ) according to one of the preceding claims, characterized in that the hub ( 2 ) a hole ( 13 ) for receiving an output shaft of an engine, wherein the hub ( 2 ) in the area of the hole ( 13 ) a feather keyway ( 14 ) having.
  15. Hub ( 2 ) for a traction sheave ( 1 ) according to one of claims 1 to 13, characterized in that the hub ( 2 ) a hole ( 13 ) for receiving an output shaft of an engine, wherein the hole ( 13 ) a conical surface ( 15 ), wherein preferably the conical surface ( 15 ) has a taper of 1:10.
  16. Slat ( 3 ) for a traction sheave ( 1 ) according to one of claims 1 to 13, characterized in that the lamella ( 3 ) in its radially outer region at least on one of its axial end faces ( 8th ) a driving surface ( 9 ), wherein the lamella ( 3 ) a main level ( 24 ) perpendicular to the axis of rotation (FIG. 10 ) of the lamella ( 3 ), and the driving surface ( 9 ) opposite the main level ( 24 ) is inclined by an angle ε.
  17. Slat ( 3 ) according to claim 16 or traction sheave ( 1 ) according to one of claims 1 to 13, in which the inclination angle ε of the driving surface ( 9 ) opposite the main level ( 24 ) 15 ° to 30 °, preferably 17 ° to 23 °, more preferably by 20 °.
  18. Slat ( 3 ) according to claim 16 or traction sheave ( 1 ) according to one of claims 1 to 13, in which the angle ε about which the driving surface ( 9 ) opposite the main level ( 24 ) is inclined, 30 ° to 60 °, preferably 40 ° to 50 °, particularly preferably by 45 °.
  19. Slat ( 3 ) according to one of claims 16 to 18 or traction sheave ( 1 ) according to one of claims 1 to 13, characterized in that the lamella ( 3 ) consists of a structural steel of grade S355, a tempered steel or a nitriding steel.
  20. Slat ( 3 ) according to one of claims 16 to 19 or traction sheave ( 1 ) according to one of claims 1 to 13, characterized in that the lamella ( 3 ) on both axial end faces ( 8th ) with a driving surface ( 9 ) Is provided.
  21. Slat ( 3 ) according to one of claims 16 to 20 or traction sheave ( 1 ) according to one of claims 1 to 13, characterized in that the radially outer residual thickness of the lamella ( 3 ) about 20% to 40% of the total thickness of the lamella ( 3 ) is.
  22. Slat ( 3 ) according to one of claims 16 to 21 or traction sheave ( 1 ) according to one of claims 1 to 13, characterized in that the lamella ( 3 ) at least in the area of the driving surface ( 9 ) is surface hardened.
  23. Slat ( 3 ) according to claim 21 or traction sheave ( 1 ) according to one of claims 1 to 13, characterized in that the lamella ( 3 ) at least in the area of the driving surface ( 9 ) is gas nitrided.
DE102007046231A 2007-09-26 2007-09-26 Traction sheave for ropes or belt, has hub and multiple annular disks, where each disk has traction surface in its outer radial area on one of axial front faces Ceased DE102007046231A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102007046231A DE102007046231A1 (en) 2007-09-26 2007-09-26 Traction sheave for ropes or belt, has hub and multiple annular disks, where each disk has traction surface in its outer radial area on one of axial front faces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007046231A DE102007046231A1 (en) 2007-09-26 2007-09-26 Traction sheave for ropes or belt, has hub and multiple annular disks, where each disk has traction surface in its outer radial area on one of axial front faces

Publications (1)

Publication Number Publication Date
DE102007046231A1 true DE102007046231A1 (en) 2009-04-09

Family

ID=40417945

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102007046231A Ceased DE102007046231A1 (en) 2007-09-26 2007-09-26 Traction sheave for ropes or belt, has hub and multiple annular disks, where each disk has traction surface in its outer radial area on one of axial front faces

Country Status (1)

Country Link
DE (1) DE102007046231A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3013793A1 (en) * 2013-11-27 2015-05-29 Skf Ab Return pulley, torque transmission system comprising such pulley, and method of manufacturing such pulley
JP2017007795A (en) * 2015-06-22 2017-01-12 三菱電機株式会社 Sheave for elevator

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1740087A (en) * 1927-12-30 1929-12-17 Allis Chalmers Mfg Co Sheave structure
US2008300A (en) * 1931-11-27 1935-07-16 Worthington Pump & Mach Corp Sheave
US2036445A (en) * 1934-02-12 1936-04-07 Frank C Torkelson Adjustable v-type pulley
US2427172A (en) * 1943-12-31 1947-09-09 Howard O Williams Multiple v-belt pulley
FR935190A (en) * 1946-10-15 1948-06-11 Improvements to transmission pulleys
DE809120C (en) * 1948-09-24 1951-07-23 Verkst Sbolaget Oerebro Maskin pulley
US2632333A (en) * 1948-03-15 1953-03-24 A E Rains Pulley
DE872139C (en) * 1950-07-29 1953-04-13 Flender A F & Co composable of several disc plates pulley
DE900160C (en) * 1950-01-13 1953-12-21 Ullner & Ullner Gmbh Light metal pulley
FR1100097A (en) * 1954-02-24 1955-09-15 Adjustable pulley multigroove
AT321044B (en) * 1972-05-30 1975-03-10 Hans Langesee pulley
GB2163515A (en) * 1984-07-04 1986-02-26 Archetti Luigi Snc Method of construction of composite pulleys and the resulting pulley assembly
DE3626045A1 (en) 1986-08-01 1988-02-04 Ivano Frankovskij Inst Nefti I Driving pulley
DE3128660C2 (en) 1980-12-04 1988-12-08 Liftservice B.V., Lunteren, Nl
DE3532624C2 (en) 1984-09-24 1991-06-06 Elevator Gmbh, Baar, Ch
DE19948584A1 (en) 1999-10-08 2001-04-12 Flender A F & Co Drive for passenger rope lifts
DE10154171A1 (en) 2001-11-05 2003-05-28 Otis Elevator Co Hydraulic lift (elevator) modernizing process involves dismantling drive and cable, fitting counterweight with pulley and pulley drive unit, diverting pulley and fixing devices
EP1471030A1 (en) 2003-04-22 2004-10-27 Inventio Ag Drive pulley for elevators and it's manufacturing process
EP0753599B2 (en) 1995-07-11 2005-04-13 METAPLAS IONON Oberflächenveredelungstechnik GmbH Method for producing corrosion and wear resistant protective coatings on iron based substrates
US20070062762A1 (en) * 2005-09-20 2007-03-22 Ernst Ach Elevator installation with drivebelt pulley and flat-beltlike suspension means
EP1777189A1 (en) 2005-10-21 2007-04-25 Inventio Ag Carrying means device comprising a traction sheave and carrying means as well as an elevator comprising said carrying means device
EP1795622A1 (en) 2005-12-12 2007-06-13 METAPLAS IONON Oberflächenveredelungstechnik GmbH Process of gas-nitriding a surface of a workpiece without forming a bond layer, and a corresponding workpiece

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1740087A (en) * 1927-12-30 1929-12-17 Allis Chalmers Mfg Co Sheave structure
US2008300A (en) * 1931-11-27 1935-07-16 Worthington Pump & Mach Corp Sheave
US2036445A (en) * 1934-02-12 1936-04-07 Frank C Torkelson Adjustable v-type pulley
US2427172A (en) * 1943-12-31 1947-09-09 Howard O Williams Multiple v-belt pulley
FR935190A (en) * 1946-10-15 1948-06-11 Improvements to transmission pulleys
US2632333A (en) * 1948-03-15 1953-03-24 A E Rains Pulley
DE809120C (en) * 1948-09-24 1951-07-23 Verkst Sbolaget Oerebro Maskin pulley
DE900160C (en) * 1950-01-13 1953-12-21 Ullner & Ullner Gmbh Light metal pulley
DE872139C (en) * 1950-07-29 1953-04-13 Flender A F & Co composable of several disc plates pulley
FR1100097A (en) * 1954-02-24 1955-09-15 Adjustable pulley multigroove
AT321044B (en) * 1972-05-30 1975-03-10 Hans Langesee pulley
DE3128660C2 (en) 1980-12-04 1988-12-08 Liftservice B.V., Lunteren, Nl
GB2163515A (en) * 1984-07-04 1986-02-26 Archetti Luigi Snc Method of construction of composite pulleys and the resulting pulley assembly
DE3532624C2 (en) 1984-09-24 1991-06-06 Elevator Gmbh, Baar, Ch
DE3626045A1 (en) 1986-08-01 1988-02-04 Ivano Frankovskij Inst Nefti I Driving pulley
EP0753599B2 (en) 1995-07-11 2005-04-13 METAPLAS IONON Oberflächenveredelungstechnik GmbH Method for producing corrosion and wear resistant protective coatings on iron based substrates
DE19948584A1 (en) 1999-10-08 2001-04-12 Flender A F & Co Drive for passenger rope lifts
DE10154171A1 (en) 2001-11-05 2003-05-28 Otis Elevator Co Hydraulic lift (elevator) modernizing process involves dismantling drive and cable, fitting counterweight with pulley and pulley drive unit, diverting pulley and fixing devices
EP1471030A1 (en) 2003-04-22 2004-10-27 Inventio Ag Drive pulley for elevators and it's manufacturing process
US20070062762A1 (en) * 2005-09-20 2007-03-22 Ernst Ach Elevator installation with drivebelt pulley and flat-beltlike suspension means
EP1777189A1 (en) 2005-10-21 2007-04-25 Inventio Ag Carrying means device comprising a traction sheave and carrying means as well as an elevator comprising said carrying means device
EP1795622A1 (en) 2005-12-12 2007-06-13 METAPLAS IONON Oberflächenveredelungstechnik GmbH Process of gas-nitriding a surface of a workpiece without forming a bond layer, and a corresponding workpiece

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DIN 7867
DIN 7867: Keilrippenriemen und -scheiben. Berlin, Beuth Verlag, 1986 *
DIN 912

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3013793A1 (en) * 2013-11-27 2015-05-29 Skf Ab Return pulley, torque transmission system comprising such pulley, and method of manufacturing such pulley
JP2017007795A (en) * 2015-06-22 2017-01-12 三菱電機株式会社 Sheave for elevator

Similar Documents

Publication Publication Date Title
US20170362059A1 (en) Tension member for an elevator
US10301154B2 (en) Hoist drum and rope pulley for fiber rope drives
US20150024891A1 (en) Suspension element for an elevator system
CA2552798C (en) Lift installation with a support means end connection and a support means, and a method of fastening an end of a support means in a lift installation
RU2492130C2 (en) Thin high-strength wire for elevator lifting cable
DE69931193T2 (en) Permanent for an elevator
US7607204B2 (en) Belt end connection for fastening the end of a supporting belt in an elevator system and method for fastening the end of a supporting belt in an elevator system
EP1446352B1 (en) Lift system
KR101024226B1 (en) Drive engine for a lift installation and method of mounting a drive engine
EP2361212B1 (en) Elevator support means, manufacturing method for said support means and elevator system comprising said elevator support means
KR100656726B1 (en) Synthetic fiber rope to be driven by a rope sheave
DE60020546T2 (en) Improved disc design
US6742769B2 (en) Elevator sheave for use with flat ropes
AU2003264823B2 (en) Belt with an integrated monitoring mechanism
US4013142A (en) Elevator system having a drive sheave with rigid but circumferentially compliant cable grooves
CN1177100C (en) Rope, and elevator using the same
RU2278812C2 (en) Lift with cable drive without reduction gear
CA2552202C (en) Lift system
KR100921360B1 (en) Lift comprising a flat belt as a tractive element
ES2285833T3 (en) Elevator system with compact machine room.
KR101112502B1 (en) Coated wire rope
EP0672781B2 (en) Cable for lifts
ES2260340T3 (en) Elevator and elevator traction pulley.
JP5217285B2 (en) Elevator apparatus, belt for elevator apparatus, belt manufacturing method, belt composite, and method of mounting composite on elevator apparatus
DE102007021434B4 (en) Aufzugsanlagenzugmittel

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection