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
  • B66B11/0065—Roping
  • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or 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
  • B66B11/04—Driving gear ; Details thereof, e.g. seals
  • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Definitions

• the present invention relates to an elevator installation which has a drive arrangement which is designed to drive a suspension element in a particularly low-wear manner.
• Elevator systems typically include at least one elevator car, which may be e.g. between floors can be moved.
• the cabin is thereby driven by means of a rope-like support means arrangement and in this way, for example, moved along a hoistway.
• a counterweight may be provided, which is also suspended from the suspension means assembly, wherein drive and Umienkroiien are provided such that the counterweight moves in the opposite direction to the cabin.
• the cable-like suspension element arrangement can, for example, have one or more suspension elements in the form of elongate cables or straps which are highly mechanically loadable in the longitudinal direction in tension, but which can be flexibly bent in a transverse direction.
• the ropes may be steel cables having a plurality of interwoven wires or strands.
• the ropes may be formed with synthetic fibers. Often the ropes are with a friction enhancing and against
• Environmental influences protective jacket for example, surrounded by plastic.
• Belts may have a plurality of load bearing cores, e.g. are arranged side by side and are surrounded by a friction enhancing and protective against environmental influences Manteimaterial.
• the ropes and in particular the belts can be profiled on their surface.
• the suspension element or the support means is typically driven by means of a drive arrangement in which a traction sheave is driven by a motor and the traction sheave in turn drives the at least partially wrapped around the traction sheave support means assembly. At least partially wrap around the traction sheave hugs the
• the support means arrangement in at least partially wrapping around the traction sheave is strong in a direction transverse to her Lengthwise direction bent, wherein a radius of curvature substantially corresponds to an outer radius of the traction sheave.
• an elevator system comprising an elevator car, a suspension means arrangement having at least one elongate, transversely flexibly bendable suspension means for holding the elevator car and a drive arrangement for driving the suspension means arrangement.
• Drive assembly in this case has a motor, one of the motor. a traction sheave driven about an axis of rotation and at least two main deflecting sheaves.
• the suspension element arrangement is in this case guided by the drive arrangement such that the at least one suspension element initially partially wraps around a first of the main deflection pulleys, then partially wraps around the traction sheave and then partially wraps around a second one of the main deflection pulleys and the support means in each loop around one of the drive and main deflection pulleys the same direction is bent.
• suspension elements for displacing the elevator car or the counterweight attached thereto are driven by a traction sheave and are then deflected by deflecting disks.
• the suspension means wrap around the traction sheave at least partially, sometimes several times, and are bent transversely to their longitudinal direction.
• the support means in turn wrap around the deflecting disks at least partially and in this case are repeatedly bent transversely to their longitudinal direction, but usually in opposite directions.
• the drive arrangement of an elevator installation be equipped with three rotatable disks, namely a traction sheave driven by the motor and two main deflecting disks, so that at least in the area of the drive arrangement no bending of the suspension elements takes place in opposite directions.
• the traction sheave and the main deflecting disc are arranged such that support means of a support means assembly can be driven by the traction sheave and they first partially wrap around the first Hauptumlenksay, then partially wrap the traction sheave and finally wrap the second Schoumlenkusion partially.
• the support means are always bent in the respective wraps in the same direction, so that no bending takes place in opposite directions.
• Main deflectors clockwise or around each of the propellant
• Main deflectors looped counterclockwise.
• the suspension element arrangement of the elevator installation is guided by the drive arrangement in such a manner that a first region of the at least one suspension element between the first main deflection pulley and the traction sheave and a subsequent second course region of the same suspension element between the traction sheave and the second main deflection sheave are in plan view of the drive arrangement in one direction along the axis of rotation of the traction sheave.
• a course region can be understood to be a subregion of a carrier medium which moves through the carrier means arrangement and which is located within the course of the carrier medium through the carrier means arrangement.
• the traction sheave and the main deflecting pulley are arranged and the Tragjitteian Aunt such guided around this and partially wrapped around individual discs that one and the same support means in its course from the first Schoumlenkemia towards the traction sheave and then on to the second Schoumlenkusion itself seems to cross when looking in the direction of the axis of rotation on the drive assembly.
• the at least one suspension element circumscribes the traction sheave by less than 360 °, preferably less than 300 °.
• the suspension element is wound around the traction sheave less than a complete revolution.
• the drive arrangement is designed such that the support means rotate the traction sheave less than a whole time, i. Do not loop around the traction sheave several times, but that the suspension elements are nevertheless wrapped around the traction sheave and held in tension so that a high degree of traction between the traction sheave and the suspension elements can be achieved.
• Vorteiihaft represent the at least one support means rotates the traction sheave with a wrapping angle of between 180 ° and 360 °, preferably between 190 ° and 330, and more preferably between 200 ° and 300 °, looping.
• the disks within the drive assembly are configured and arranged such that the support means coming from the first main deflecting disk is more than half the circumference, ie more than 180 °, but less than the entire circumference, ie less than 360 °, of the Drive pulley looped before they then continue to the second main deflecting.
• Such a looping of the traction sheave can lead to a traction sheave hi n extending course region of the support means and extending away from the traction sheave gradient region of the support means obliquely to each other and intersect at some point in a crossing region. Because of such a crossed course of the support means, while being bent in the process of the car by means of the driven by the drive assembly support means successively in the transverse direction, when they are wrapped over the Hauptumlenkusionn and the traction sheaves, always be bent in the same direction. Detrimental bending in opposite directions can thus be avoided due to the crossed course of the support means within the drive assembly.
• the two main deflecting pulleys guide the at least one support means in each case such that a first travel region and a second transit region
• Course of the support means between the first main deflecting pulley and the traction sheave and the subsequent second course region of the same support means between the traction sheave and the second main deflecting intersect in plan view of the drive assembly in a direction along the axis of rotation of the traction sheave offset by an offset from each other.
• an offset can be understood as meaning a spacing along the axis of rotation of the traction sheave.
• the support means are to be guided within the drive assembly of the Kleinumlenkusionn so that they do not extend over their entire course exactly in a common plane, but in the first course region from the first Schoumlenkusion towards the traction sheave in a different plane than in the second Gradient range from the traction sheave to the second main deflecting disc.
• the two planes are tilted against each other in such a way that a suspension element, where it crosses on its way to the traction sheave and on its opposite path away from the traction sheave, with an offset, that is sufficiently spaced moves. In this way it can be achieved that the suspension element does not touch itself in the crossing area but can preferably be guided past it without friction.
• Crossing area can be achieved, for example, that the two
• the two main deflecting disks are designed and arranged such that they rotate about mutually parallel axes of rotation.
• the main deflecting disks can in this case be of identical design in particular with respect to their circumference and / or their dimensions along the axis of rotation.
• the Stilumlenkfactorn can be identical, which can reduce manufacturing and / or storage costs.
• Rotary axes arranged perpendicular plane, but these planes are slightly offset from each other.
• staggered guidance of the support means may also be achieved by not staggering the entire main lumbar discs but providing guide tracks on each of the main return pulleys guiding the support means and displacing these guide grooves in one of the main lumbar discs the guide rails are arranged at the other of the main deflecting disks.
• the two main deflecting disc differ in this case, at least in terms of trained on its lateral surface Fagitriilen.
• the aforementioned offset between the two intersecting course regions of a suspension element or between the main deflection pulleys guiding the suspension element is greater than a dimension of the at least one suspension element along the direction parallel to the axes of rotation.
• the offset may for example be greater than the diameter of Tragmitteis.
• the offset is sufficiently large, so that the suspension element does not touch and engage in the intersecting course regions
• Distance between the intersecting course regions is preferably sufficiently large, so that during operation of the elevator system even when eg slightly vibrating or vibrating suspension means there is no risk that the intersecting
• the offset may be greater than 105%, preferably greater than 110% or 120%, of the dimension of the at least one support along the direction parallel to the axes of rotation.
• the suspension element arrangement comprises a plurality of cables
• Suspension means In other words, several ropes are provided in the Tragmitteian Aunt, preferably parallel to each other and together carry the load caused by the car and / or the counterweight. For example, typically between 2 and 25, preferably between 5 and 15, ropes may be provided in a suspension means assembly. Such suspension arrangements are preferably used in elevator installations, which are to be able to move elevator cars over great heights, ie. in so-called high-rise elevators with delivery heights of several tens of meters or even several hundred meters.
• a first course region of the plurality of cables between the first main drive disk and the traction sheave and a subsequent second course region of the same cables between the traction sheave and the second main deflection sheave may cross in plan view of the drive arrangement in a direction along the axis of rotation of the traction sheave a rope run in the region of the second course region between two ropes in the region of the first course region.
• the plurality of ropes may be arranged to extend through the drive assembly such that they intersect alternately, i.e., where their first trajectory extending toward the traction sheave and their second traverse region extending away from the traction sheave intersect. in a
• a first course region of a rope can be carried out between a second course region of the same rope and a second course region of an adjacent rope.
• the outermost of the several ropes do not run between two ropes. In this way, the entire suspension element arrangement can be guided by the drive arrangement crossing itself.
• Support means arrangement are preferably guided such that in each case a first course region of a rope is guided through the gap between two cables in associated second course regions due to the previously described offset.
• each individual cable only needs to run at a slight angle in relation to one of the main deflecting pulleys, in order to achieve the necessary offset in the crossing region.
• An excessively oblique course could otherwise lead to increased wear of the cables and / or the deflection pulleys.
• the drive arrangement is to be fastened to the bottom of a supporting structure within a building and the elevator installation has two further deflection disks, which are arranged above the drive arrangement.
• the Tragmitteian extract here is directly from one of the other deflection pulleys to a Schoumlenkfrac the drive assembly and after passing through the
• At least two further deflecting disks are provided in the elevator installation. These may e.g. be placed high up in a building, i.
• the drive assembly is designed to be attached further down to a supporting structure, i. to be arranged within a building below the other deflection discs.
• Suspension means arrangement may then be e.g. coming from the elevator car or the counterweight are first performed on the above further deflecting pulleys and then run down to the drive assembly. Between the others
• Deflection pulleys and the main deflecting pulleys of the drive arrangement do not require any further deflecting pulleys, but rather the suspension means can move directly from one of the main deflecting pulleys to an associated further one
• the drive assembly of the elevator system can also be handled as a unit together with the main deflecting disks and installed inside the building, and the further deflecting disks can be fastened as separate components at other positions within the building.
• the drive unit provided as a unit, for example, the traction sheave or the driving motor and the
• Main deflecting be attached to a common frame.
• the traction sheave has a plurality of circumferentially extending grooves each for guiding a Tragmitteis. It may be advantageous to provide at least as many grooves in the traction sheave, as suspension means, preferably in the form of ropes, are included in the Tragstoffanordnun. Each individual suspension element can then be guided in a separate groove of the traction sheave.
• a cross section of the grooves can be adapted to a cross section of the support means and, for example, be substantially complementary to this.
• the grooves can run parallel to each other.
• a plurality of grooves for guiding the suspension elements can also be provided in the main deflection sheaves.
• the grooves may have an undercut cross-section. As a result, a particularly good traction for the drive arrangement can be achieved.
• suspension elements within the drive arrangement extend in such a way that they run as parallel as possible to the grooves between the traction sheave and one of the main deflection sheaves, i. in a possibly small angle of
• This can be achieved with the elevator installation described here or the drive arrangement to be provided therein, for example, by the main deflecting discs or the grooves provided therein are only slightly offset from each other.
• Embodiments of the invention herein are described in part with reference to an elevator installation according to the invention and partly with reference to a drive arrangement according to the invention to be provided therein.
• One skilled in the art will recognize that the individual features may be suitably combined, modified or replaced to yield further embodiments of the invention.
• FIG. 1 shows an elevator installation according to an embodiment of the present invention
• Fig. 2 shows a plan view of a suspension element arrangement and its course between the drive and Hauptumlenkusn a drive arrangement for an elevator system according to an embodiment of the present invention.
• FIG. 3 shows an enlargement of the area "A" from FIG. 2.
• FIG. 4 shows a side view of the arrangement from FIG. 2.
• FIG. 5 shows a bottom view of the arrangement from FIG. 2.
• Fig. 1 shows an elevator installation 1 according to an embodiment of the present invention.
• the elevator system 1 has an elevator car 3, a suspension element arrangement 5 and a drive arrangement 7.
• the elevator car 3 is at the
• Suspension means assembly 5 is fixed and held by this. With the help of
• a counterweight (not shown) is further provided which - II -
• the drive unit 7 is shown accommodated in a separate machine room 19. In alternative embodiments, however, the drive unit 7 can also be accommodated within the elevator shaft 21 and the elevator installation 1 can thus be considered as
• the elevator installation 1 according to the invention differs from conventional systems
• Elevator systems in particular with regard to a special configuration of the drive arrangement 7 provided for them. Details of this drive arrangement 7 are supplemental to the overview representation from FIG. 1 also in the various representations of FIG.
• the drive assembly 7 has an electric motor 8, which is a cylindrical
• Traction sheave 9 rotates about a rotation axis 10 around.
• the traction sheave 9 may have a typical diameter in the range of 30cm to 150cm, preferably 50cm to 100cm.
• the motor 8 together with the traction sheave 9 and the main deflecting disks 11, 13 may together form a unit and be mounted, for example, on a common frame or a common housing and thus as
• the drive arrangement 7 is characterized in that the suspension element arrangement 5 is guided by the drive arrangement 7 such that first suspension elements 11, 13 essentially wrap around, for example, cable-like suspension elements 31 Partially wrap around the traction sheave 9 and then partially wrap around a second 13 of the main deflecting disks 1 1, 1 3.
• the course of the support means 31 is selected such that the support means 31 at each wrap the traction sheave 9 and the two main deflecting disks 11, 13 are bent in the same direction in each case. A wear-promoting bending of the support means 31 in opposite directions can thereby be avoided at least in the course of the suspension element arrangement 5 through the drive arrangement 7.
• the support means arrangement 5 extends from the bottom upwards to two further deflection disks 25, 27. From these further deflection disks 25, 27, the support means arrangement 5 continues towards complementary deflection disks 29 and from these supplementary deflection disks 29 down to the cabin 3 or the counterweight, which are held by the suspension element assembly 5.
• the drive assembly 7 is fixed to the bottom of a supporting structure 17 of the building in which the elevator installation 1 is accommodated, whereas the further and supplementary deflection panels 25, 27, 29 are attached to an upper supporting structure of the building, for example a ceiling 23 Engine room 19 and the
• Elevator shaft 21 are attached.
• Fig. 2 shows a plan view of essential components of a drive assembly 7 in a direction along the axis of rotation 10 of the traction sheave 9, i. the axis of rotation 10 is orthogonal to the image plane.
• the suspension element arrangement 5 with the suspension elements 31 contained therein extends from one of the further deflection pulleys 27 down to the first main deflection pulley 11 of the drive arrangement 7. There, the suspension elements wrap around this first main deflection pulley 11 in a counterclockwise direction
• the suspension element assembly 5 extends from a right side of the first main deflecting plate 11 to a right Side of the traction sheave 9.
• the support means assembly 5 then wraps around the traction sheave 9 in the counterclockwise direction in a wrap angle of significantly more than 180 °, for example more than 200 °, but less than 360 °.
• the suspension element arrangement 5 then runs down to a left side of the second main deflecting plate 13.
• Tragschan extract 5 is hereinafter referred to as second course region 35.
• the support means assembly 5 then wraps around the second Hauptumlenkus 13 in
• the suspension element arrangement 5 is guided within the drive arrangement 7 such that the first profile region 33 and the second profile region 35 intersect in an intersection region 15.
• the suspension element arrangement 5 shows an enlarged perspective view of the suspension element arrangement 5 in a region "A" around the crossing region 15.
• the suspension element arrangement 5 consists of three substantially mutually parallel ropes 32 ', 32 ", 32"', which serve as Tragmittei 31.
• significantly more ropes 32 are used for the support means assembly 5, for example, eight cables 32.
• Each of the ropes 32 ', 32 ", 32"' may be formed for example as a steel cable and, for example, a diameter d of between 8 and 20 mm.
• the ropes 32 ', 32 ", 32'” are guided by the traction sheave 9 and by the two main deflecting disks 11, 13 in such a way that they are in the first
• Gradient region 33 and in the second course region 35 are each spaced laterally from each other at a distance s. This distance s may therefore be due to the fact that the cables 32 ', 32 ", 32"' are each guided in suitably spaced guide grooves on the lateral surfaces of the drive and main deflecting disks 9, 11, 13.
• FIG. 4 and 5 are views of the propellant and shown in Fig. 2
• Both the traction sheave 9 and the two main deflecting disks 11, 13 have a plurality of grooves 37.
• Each of the grooves 37 is adapted in terms of their dimensions such that one of the suspension means 5 forming cables 32 can be guided in each case one of the grooves 37.
• a number of grooves 37 is in the
• Traction sheave 9 and the two Hauptumlenkharin 11, 13 corresponds substantially to the number of Tragstoffn31, that is, for example, the number of ropes 32, within the suspension element assembly 5.
• the load capacity of the elevator system 1 to be achieved in the suspension element assembly 5 typically between 2 and 25, usually between 7 and 12, support means 31 or ropes 32 be provided and correspondingly many grooves 37 in the discs 9, 11, 13 may be provided.
• FIGS. 4 and 5 it is roughly schematically illustrated that the two
• the offset Vs between the main deflection plates 11, 13 should in particular be selected such that the individual suspension elements 31 of the suspension element arrangement 5 in the
• this offset Vy between the crossing support means 31 of mine is the offset Vs between the main deflecting disks 11, 13, but may also be in the range of several millimeters, for example 3mm, to a few centimeters, for example 3cm.
• This Offset Vv should in this case be sufficiently larger than, for example, the diameter d of round cables 32.
• Veriaufs Job 33 may occur with the ropes in the second Veriaufs Scheme 35.
• the drive assembly 7 may be suitably designed and the support means assembly 5 may be provided with a plurality of ropes 32, so that the ropes 32 are guided offset from the Hauptumienkrisen 11, 13 to each other so that they can cross each other in an intersection region 15 passing each other. Due to the possible thereby avoiding bending of the support means assembly 5 in opposite directions when passing through the drive assembly 7 wear phenomena in the support means 31 can be minimized.

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• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
• Cage And Drive Apparatuses For Elevators (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=53524613

Family Applications (1)

Country Status (1)

Citations (5)

• 2016
  • 2016-06-30 WO PCT/EP2016/065356 patent/WO2017001588A1/de active Application Filing

Patent Citations (5)

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