EP1802548A1 - Ascenseur muni d'une courroie plate comme element porteur - Google Patents

Ascenseur muni d'une courroie plate comme element porteur

Info

Publication number
EP1802548A1
EP1802548A1 EP05791414A EP05791414A EP1802548A1 EP 1802548 A1 EP1802548 A1 EP 1802548A1 EP 05791414 A EP05791414 A EP 05791414A EP 05791414 A EP05791414 A EP 05791414A EP 1802548 A1 EP1802548 A1 EP 1802548A1
Authority
EP
European Patent Office
Prior art keywords
guide
belt
flat belt
pulley
guide groove
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
Application number
EP05791414A
Other languages
German (de)
English (en)
Other versions
EP1802548B1 (fr
Inventor
Ernst Ach
Martin Rogger
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP05791414.5A priority Critical patent/EP1802548B1/fr
Publication of EP1802548A1 publication Critical patent/EP1802548A1/fr
Application granted granted Critical
Publication of EP1802548B1 publication Critical patent/EP1802548B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/22—Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2087—Jackets or coverings being of the coated type
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

Definitions

  • the invention relates to an elevator in which flat belts are used as support means for carrying and driving an elevator car. It refers to the problem of flat belts on pulleys, d. H. to guide on driving and Umlenkschei ⁇ ben an elevator installation.
  • a suspension means for a lift which has the shape of a flat belt with a rectangular cross-section and the belt body consists of an elastic material and contains a plurality of parallel to its longitudinal direction embedded tensile cords.
  • the belt running surfaces of the flat belt as well as the pulley surfaces of the pulleys are provided with complementary contours. These contours ensure guidance of the flat belt on the pulleys.
  • the flat belts are guided by disk-shaped guide elements which project beyond the disk running surfaces at the edge of a belt pulley or between a plurality of disk running surfaces of a belt pulley.
  • a belt guide with contoured running surfaces also increases traction between a traction sheave and the flat belt.
  • This solution has the disadvantage that, due to the increased traction capability, the safety risk exists that in a situation in which the elevator car or the counterweight rests on its lower travel limits, the traction force between the traction sheave and the flat belt remains so high that the elevator car or the counterweight can be moved further upwards.
  • the present invention has for its object to provide a lift with flat belt as a support means, which does not have the disadvantages mentioned, d. H. to provide an elevator in which the flat belts can be safely and wear-resistant on the drive and deflection of the elevator system without consuming and expensive management measures, such as crowned or double-conical disc running surfaces are required.
  • this object is achieved in that in the case of an elevator which has at least one belt pulley and at least one flat belt for carrying and moving an elevator belt. cabin, and the flat belt wraps around a part of the circumference of the pulley, the flat belt has at least one guide groove in the region of a first belt running surface and the pulley is provided with at least one guide rib projecting from its wheel running surface which extends in the circumferential direction of the disk running surface.
  • the advantages achieved by the invention are essentially to be seen in the fact that the laterally directed guide forces which occur between the guide groove of the flat belt and the guide rib of the belt pulley do not act on it in the edge region of the flat belt, as in the case of the belt guide with reference to the belt edge acting disc-shaped guide elements.
  • the above-described problem of the belt edge rising at the disc-shaped guide elements is eliminated in the solution according to the invention.
  • an increase in the maximum traction force due to traction-increasing guide contours on the traction sheave and on the flat belt is avoided.
  • a secure guidance of the flat belt is achieved with simple and cost-saving means.
  • the flat belt comprises a substantially rectangular belt body of elastic material in which a plurality of tension strands are embedded. This gives the flat belt the required tensile strength. An optimal leadership of the flat belt on the pulley is ensured by the fact that the cross section of the guide rib of the belt pulley is substantially complementary to the cross section of the guide groove of the flat belt.
  • the guide rib of the pulley is 0.1 mm to 2 mm narrower than the guide groove of Flachrie ⁇ mens, so that the axial play S a between the guide rib and the guide groove is 0.1 mm to 3 mm. This ensures that on the one hand the guide causes no increase in traction and on the other hand, the possible transverse displacement of the flat belt on the pulley remains relatively low.
  • the size of the axial play S a between the guide rib and the guide groove as a function of the width of the flat belt, wherein the axial play S a should preferably amount to 0.5% to 10% of the width of the flat belt.
  • the depth of the guide groove and the height of the guide rib so Match to one another that between the two play in the radial direction (radial clearance S r ) is present when the first belt running surface of the flat belt rests on the Schei ⁇ benlauf simulation the pulley.
  • the guide groove as well as the complementarily shaped guide rib on a trapezoidal or a triangular or a circular section-shaped cross-section.
  • Cross-sectional shapes are simple and precise to produce and are ideal for transferring occurring between flat belt and pulley shear forces.
  • a belt guide comprising a guide groove and a guide rib with trapezoidal or triangular cross-section, when the angle ⁇ between the flanks of the guide groove and the guide rib in the range between 0 ° and 120 °, preferably between 10 ° and 60 °.
  • a belt guide which is particularly resilient and low-wear in the transverse direction of the belt is achieved in that the surface of at least one guide groove of the flat belt is provided with a fabric reinforcement and / or with a friction-reducing and / or wear-resistant coating.
  • An advantageous embodiment of the invention is that the elastic material of the belt body of the flat belt is attached to a friction coefficient reducing additive. This is the usually high coefficient of friction between reduces the elastic material of the Rienaen stressess and the Scheiben ⁇ running surface of the pulley, so that the Belas ⁇ tion of the guide groove of the flat belt by the lateral forces required for its leadership are lower, which makes the guide functionally reliable and low-wear.
  • additives of polyethylene or cotton fibers are suitable for reducing said coefficient of friction.
  • An expedient for ensuring the reliability of the elevator embodiment of the invention is that the elevator arranged several parallel, with
  • Guide pulleys provided flat belt comprises as a support means and the pulley has a plurality of juxtaposed disc running surfaces, each of the Scheibenraising ⁇ surfaces is provided with at least one guide rib.
  • a minimal reduction in the load capacity of a flat belt designed according to the invention with a guide groove is achieved in that the arrangement of the tension cords in the belt body is selected such that they are spaced farther apart in the region of a guide groove than outside such a region. It is therefore dispensed with a uniform distribution of the tension members to to be able to embed as many of them as possible in the belt body.
  • a particularly versatile embodiment of the invention is that the flat belt has a spine guide rib protruding from a (rear) second belt running surface.
  • This spine guide rib may cooperate with a guide groove in the disc running surface of a deflecting pulley which orbits the flat belt so as to contact the eccentric belt pulley with its second belt running surface.
  • This embodiment makes it possible to realize support means arrangements with guided flat belts in which the flat belts are guided over a plurality of pulleys in such a way that they are curved in opposite directions.
  • Fig. 2 shows a cross section through a resting on a belt pulley with a guide rib
  • FIG. 3 shows a cross section through a flat belt resting on a belt pulley with two guide ribs with two guide grooves
  • FIG. 4 shows a cross section through a flat belt resting on a deflection pulley with a back guide rib
  • Fig. 5-8 are enlarged views of belt slices resting on flat belts with differently shaped and formed guide grooves and guide ribs of the corresponding belt pulley.
  • 9 shows a pulley with several Scheibenmaschineflä ⁇ surfaces on which rest a plurality of flat belts.
  • Reference numeral 1 designates an elevator shaft in which a prime mover 2 with a drive pulley 7A moves an elevator car 4 up and down via a support means in the form of a flat belt 3.
  • the drive machine 2 is arranged in the upper part of the elevator shaft 1 and supported on a cab guide rail 5 and two counterweight guide rails 10.
  • the elevator car 4 is guided on car guide rails 5 fixed in the elevator shaft 1.
  • cabin belt pulleys 7B are mounted on both sides, via which the carrying forces are transmitted from the flat belt 3 to the elevator car 4.
  • a counterweight 8 is arranged, which is guided on counterweight guide rails 10 and suspended by means of a counterweight pulley 7 C on the same flat belt 3 as the elevator car 4.
  • the plane of the drive pulley 7A is arranged at right angles to the counterweight-side cabin wall 4.1 and lies approximately in the middle of the cabin depth.
  • the flat belt 3 serving as the support means is fixed at one of its ends below the drive pulley 7A. From this first suspension point 9, it extends down to the counterweight pulley 7C, wraps around it, extends from this to the drive pulley 7A, wraps around this and then runs along the counterweight-side cabin wall 4.1 downwards, wraps around each on both sides of the elevator car 4 mounted below the elevator car cabin pulley 7B by 90 ° and extends along the Counterweight 8 remote cabin wall 4.2 up to a second support means fixed point 11th
  • the support means arrangement described causes each opposite vertical movements of the elevator car 4 and the counterweight 8, wherein the speed of which corresponds to half the peripheral speed of the drive pulley 7A.
  • the flat belt 3 undergoes bending in a certain direction of curvature in the looping of the counterweight pulley 7C as well as the drive pulley 7A, while it is bent in the opposite direction of curvature when the car pulleys 7B are looped around.
  • the flat belt 3 has at least one guide groove extending in its longitudinal direction, while the pulleys 7 are provided with guide ribs are provided in the at least one guide groove engage the flat belt 3.
  • the flat belt 3 is centered on the disc running surfaces of the pulleys 7, even if the pulleys are not perfectly aligned with each other.
  • the at least one guide groove of the flat belt as well as the at least one guide rib of the Riemenschei ⁇ ben will be described in detail below with reference to further drawings.
  • FIG. 2 shows a flat belt 23 resting on a pulley 27.
  • the flat belt comprises a belt body 23.1 with a first belt running surface 23.5, a back reinforcing layer 23.3 and several tension cords 23.2 embedded in the belt body.
  • the belt body 23.1 consists of an elastic and wear-resistant
  • the belt body 23.1 preferably made of an elastic plastic, such as polyurethane (PU) or ethylene-propylene-diene rubber (EPDM).
  • PU polyurethane
  • EPDM ethylene-propylene-diene rubber
  • the elastic material of the belt body 23.1 can reduce its coefficient of friction with respect to the pulley, for example silicone, polyethylene or cotton fibers , be attached.
  • tensile cords 23.2 round or flat strands of fine steel wires or of high-strength plastic fibers, such as, for example, aramid fibers, can be used.
  • the back reinforcing layer 23.3 may be a fabric made of cotton or plastic fibers or may consist of a film, for example a polyamide film.
  • the pulley 7 which may have the function of a drive pulley (pulley) or a deflection pulley in the elevator, is usually made of steel, cast iron or ductile iron, but may also consist of a plastic, such as polyamide. In the interests of optimum utilization of the available shaft space and the lowest possible torque required on the drive machine 2, the belt pulleys may have a diameter D of less than 100 mm. To ensure during the elevator operation that the flat belt 23 is always guided on the disk running surface 7.1 of the pulley 27, the pulley 27 is provided with a guide rib 27.2 which engages in a guide groove 23.4 present in the flat belt 23. In the arrangement shown in FIG.
  • the guide rib 27.2 of the belt pulley 7, as well as the guide groove 23.4 of the flat belt 23, have trapezoidal cross-sections which are essentially complementary to each other. Between the guide rib 27.2 and the guide groove 23.4 there is sufficient play in the axial and radial directions to ensure that no V-belt effect occurs, so that when the pulley is used as a traction sheave, the traction force provided is not in any situation is exceeded. This avoids the risk that, if in the case of a control or drive span, the elevator car or the
  • FIG. 3 again shows a flat belt 33 resting on a pulley 37 with its first belt running surface 33.
  • the flat belt 33 has two guide grooves 33.4, one of two guide ribs 37 Pulley 37 engages.
  • the guide force required to avoid the lateral drift of the flat belt 33 is thus distributed over two flanks of the two guide grooves 33.4, which substantially increases the functional reliability and wear resistance of the belt guide.
  • FIG. 4 shows a flat belt 43, which wraps around a pulley 47, for example the cabin pulley 7B shown in FIG. 1, in such a way that it contacts its pulley surface 47.1 with its second belt running surface 43.6, also called the belt back.
  • the flat belt 43 is - in addition to a guide groove 43.4 in its first Riemenlaufflä ⁇ surface 43.5 - provided with a protruding from his (back) second belt surface 43.6 back-guide rib 43.8, which cooperates with a present in the disc running surface 47.1 disc guide 47.4 of the pulley 47 ,
  • the back reinforcing layer 43.3 can be used as wear protection for the back guide rib 43.8 Act. However, such a back reinforcing layer is not mandatory.
  • the embodiment shown in Fig. 4 makes it possible to realize support means arrangements in elevator systems with guided flat belts, in which the flat belts rotate around a plurality of pulleys, which are arranged so that the flat belts are curved in opposite directions
  • FIGS. 5-8 show, in enlarged views, details of differently shaped and formed guide grooves and guide ribs of flat belts and pulleys cooperating therewith.
  • FIG. 5 shows an enlarged guide rib 57. 2 of a belt pulley 57 and the corresponding guide groove 53. 4 of a flat belt 53, the design and the arrangement of these elements essentially corresponding to the corresponding elements according to FIGS. 2 and 3. It can be seen that, when the first belt running surface 53.5 of the flat belt rests on the disk running surface 57.1, between the guide rib 57.2 and the guide groove 53.4 axial play S a as well as radial play S r is present, as explained above, a traction increase by a V-belt conveyor. to avoid.
  • the axial play S a measured in the direction of the pulley axis amounts to 0.1 mm to 3 mm or 0.5% to 10% of the width of the flat belt.
  • the guide groove 53.4 is preferably inclined relative to one another such that in the case of a guide groove or a guide rib with a trapezoidal or triangular cross-section (FIG. 7), the angle ⁇ between the flanks of the guide groove or guide rib is in the range between 0 ° and 120 °, preferably between 10 ° and 60 °.
  • Fig. 6 also shows a guide rib 67.2 of a pulley 67 and a corresponding guide groove 63.4 of the flat belt 63 which have trapezoidal cross sections, wherein the surface of the guide groove 63.4 of
  • the flat belt is provided with a friction and / or wear-reducing protective layer 63.9.
  • the protective layer 63.9 may be present for example in the form of a fabric reinforcement or a plastic film.
  • Fig. 7 shows an advantageous embodiment of acting between a flat belt 73 and a pulley 77 belt guide.
  • the pulley 77 has a triangular guide rib 7.2, which engages in a triangular guide groove 73.4 of the flat belt 73.
  • This belt guide cracks little space in the direction of the width of the flat belt and therefore allows the largest possible number of vereinan ⁇ embedded in the belt body tension strands 73.2.
  • FIG. 8 shows a further possible embodiment of a belt guide acting between a belt pulley 87 and a flat belt 83, in which there are at least one guide groove 83.4 in the flat belt 83 and one guide rib 87.2 on the belt pulley 87, which have circular section-shaped cross sections.
  • Fig. 9 shows a pulley 97, resting on the two parallel flat belt 93 with guide grooves 93.4.1 and 93.4.2.
  • the pulley 97 comprises two adjacently arranged disc running surfaces 97.1.1, 97.1.2, each of which is provided with a guide rib 97.2.1, 97.2.2.
  • each of the flat belts more than one guide groove and each disc running surface can have more than one guide rib.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

L'invention concerne un ascenseur qui comprend des poulies à courroie (37) et au moins une courroie plate (33) servant à porter et à déplacer une cabine d'ascenseur. Pour guider la courroie plate (33) sur les poulies à courroie (37), la courroie plate présente au moins une rainure de guidage (33.4) dans laquelle s'engrène au moins une nervure de guidage (37.2) faisant saillie de la surface de roulement (37.1) de la poulie à courroie (37).
EP05791414.5A 2004-10-18 2005-10-14 Ascenseur avec courroie plate Not-in-force EP1802548B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05791414.5A EP1802548B1 (fr) 2004-10-18 2005-10-14 Ascenseur avec courroie plate

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04105126 2004-10-18
EP05791414.5A EP1802548B1 (fr) 2004-10-18 2005-10-14 Ascenseur avec courroie plate
PCT/CH2005/000603 WO2006042427A1 (fr) 2004-10-18 2005-10-14 Ascenseur muni d'une courroie plate comme element porteur

Publications (2)

Publication Number Publication Date
EP1802548A1 true EP1802548A1 (fr) 2007-07-04
EP1802548B1 EP1802548B1 (fr) 2015-01-07

Family

ID=34929720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05791414.5A Not-in-force EP1802548B1 (fr) 2004-10-18 2005-10-14 Ascenseur avec courroie plate

Country Status (10)

Country Link
US (1) US8336675B2 (fr)
EP (1) EP1802548B1 (fr)
KR (1) KR100921360B1 (fr)
CN (1) CN101044084B (fr)
AR (1) AR051394A1 (fr)
BR (1) BRPI0517102B1 (fr)
ES (1) ES2534464T3 (fr)
MY (1) MY143607A (fr)
TW (1) TWI350814B (fr)
WO (1) WO2006042427A1 (fr)

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KR102468213B1 (ko) * 2016-03-09 2022-11-17 오티스 엘리베이터 컴파니 개선된 내부 내마모성을 갖는 강화된 직물 엘리베이터 벨트
JP7253378B2 (ja) 2016-03-15 2023-04-06 オーチス エレベータ カンパニー 横方向層を含む荷重支持部材
BR112018069451A2 (pt) * 2016-04-04 2019-02-05 Inventio Ag montagem de correia e roldana com orientação linear para um elevador
CN106144838A (zh) * 2016-06-30 2016-11-23 江南嘉捷电梯股份有限公司 一种电梯
CN105923502B (zh) * 2016-06-30 2019-09-03 苏州江南嘉捷电梯有限公司 一种电梯曳引悬挂系统
CN105947850A (zh) * 2016-06-30 2016-09-21 江南嘉捷电梯股份有限公司 一种电梯曳引承载机构
CN105923503A (zh) * 2016-06-30 2016-09-07 江南嘉捷电梯股份有限公司 一种电梯曳引悬挂装置及电梯
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Also Published As

Publication number Publication date
MY143607A (en) 2011-06-15
KR100921360B1 (ko) 2009-10-13
CN101044084A (zh) 2007-09-26
TWI350814B (en) 2011-10-21
KR20070057959A (ko) 2007-06-07
CN101044084B (zh) 2012-03-28
US8336675B2 (en) 2012-12-25
US20080087500A1 (en) 2008-04-17
BRPI0517102B1 (pt) 2018-04-10
ES2534464T3 (es) 2015-04-23
WO2006042427A1 (fr) 2006-04-27
TW200626465A (en) 2006-08-01
EP1802548B1 (fr) 2015-01-07
AR051394A1 (es) 2007-01-10
BRPI0517102A (pt) 2008-09-30

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