WO2012052593A1 - Aparato elevador por cable - Google Patents
Aparato elevador por cable Download PDFInfo
- Publication number
- WO2012052593A1 WO2012052593A1 PCT/ES2011/070724 ES2011070724W WO2012052593A1 WO 2012052593 A1 WO2012052593 A1 WO 2012052593A1 ES 2011070724 W ES2011070724 W ES 2011070724W WO 2012052593 A1 WO2012052593 A1 WO 2012052593A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- cables
- traction sheave
- throats
- axis
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/74—Capstans
- B66D1/7489—Capstans having a particular use, e.g. rope ascenders
Definitions
- the present specification refers, as its title indicates, to a cable lifting device used to lift vertically, or assist in the ascent, to people or loads, being especially useful for the ascent by long ladders, such as those located in silos, cranes, towers, wind turbines, etc., characterized in that it uses two or more cables that pass through a multi-throat tilt pulley, formed by several coaxial plates provided with longitudinal displacement through the central bushing and with self-adjusting capacity to the cables, associated with independent sets of pressure rollers for each cable, each of these roller assemblies being mounted on a housing that pivots on a laterally arranged axis.
- Patents ES 0553097 and US D 491333 have the disadvantages on the one hand that the pressure exerted is always the same, regardless of the load to be lifted or supported, thereby increasing the wear and the life of the device is reduced, and on the other hand, when using a single cable it presents safety problems, since the single cable is the one that must support all the weight to be lifted, Therefore, it is necessary to take care of its revisions and maintenance to maintain the operational installation in the appropriate security conditions.
- Some devices are known that provide several cables to increase the safety of lifting people and loads, such as the one described in Patent ES 2316300 Cable lifting device, in which the pressure applied depends on the load by the tangential reaction of the drive pinion mounted at the outlet of the gearbox, which meshes with a crown integral with the traction sheave, thanks to a rotating box containing the gears and the drive pulley, combined with the load to be lifted and with a throat angle of the larger pulley, although it has the disadvantage that the pressure between the rollers and the drive pulley is constant, regardless of the load, since the rollers are fixedly pressed by a spring.
- This device also provides throats adaptable to the cables by means of parallel plates connected to each other by elastic means, which has the disadvantage added that it constitutes a difficult and expensive mechanical solution to manufacture, in addition to promoting an improved performance.
- the lifting device basically comprises a drive group housed in a housing in which the shaft is housed on it which pivots a support structure of the traction sheave, which includes inside a pinion coupled to the output of the drive group reducer and geared with a concentric and concentric sprocket in rotation on the axle with the traction sheave.
- the peripheral throats of the traction sheave are made up of a plurality of independent adjacent plates, with a chamfered peripheral edge that defines the throat, equipped with a slight lateral displacement by balancing forces through a retaining bush located on the axis of rotation. of the pulley, thus achieving an automatic regulation of the tension pulley to the cables.
- each of the Suspension cables is pressed by an independent set of rollers.
- Each of these independent sets of rollers that press the suspension cables against the peripheral throats of the traction sheave are mounted on a swinging support plate, connected through an axis of rotation with another second plate that relates to the housing by means of a second axis of rotation located at one end, and having a spring located between the said second plate and the wall of the housing.
- an actuator and electric position detector assembly At the opposite end of the second axis of rotation, there is an actuator and electric position detector assembly.
- This cable lifting device presented provides multiple advantages over those currently available, the most important being that, thanks to the peripheral throats of the traction sheave are made up of a plurality of independent adjacent plates equipped with a slight lateral displacement by balance of forces is achieved an automatic regulation of the traction sheave to the cables, achieving an optimal contact with the throats that results in a better adhesion to the cable, less cable jams and less wear of the friction parts.
- Another important advantage is that this independent operation also contributes to each of the independent sets of rollers which, being fixed on a tilting plate that pivots on an axis, allows dosing the friction supplied according to the load, achieving little force when there is low load, unlike existing equipment that always supplies a constant force, with the consequent inconvenience when used with low load.
- Another advantage of the present invention is that, as a result of the better adhesion to the cable caused by the automatic adaptation pulley together with the dosing of the force achieved by the independent sets of tilting rollers, a smoother displacement of the load is obtained and with a better use of the torque.
- Figure -2- shows a side view, with the housing open.
- Figure -3- shows a plan view.
- Figure -4- shows a profile view of a detail of the discs that make up the pulley, cables and roller assemblies.
- the cable lifting apparatus object of the present invention allows loads to be moved with the use of several cables (1) coupled to an equal number of throats (2) peripheral of a single traction sheave (3) and this basically comprises, as can be seen in the annexed plane, a driving group (6) composed of motor, brake, centrifugal brake and reducer mounted on a shaft (7) of support, housed in a housing (8) capable of being fixed to the load to be lifted, and in which said support shaft (7) is housed on which a support structure (9) of the traction sheave pivots (3) that includes inside a pinion coupled to the exit of!
- the peripheral throats (2) of the traction sheave (3) are defined by a plurality of independent adjacent plates (3a, 3b, 3c), with chamfered peripheral edge, in number equal to the throats (2) plus one, provided with a slight lateral displacement by balance of forces through a retaining bushing (4) located on the axis of rotation (5), thus achieving an automatic regulation of the traction sheave (3) to the cables (1) with an optimal contact with the throats (2), resulting in a better grip, in a movement with greater smoothness and with a better use of the torque.
- This improved operation also contributes to each of the independent roller assemblies (1 1) that press the suspension cables (1) against the peripheral throats (2) of the traction sheave (3), which are mounted on a plate tilt support (12), related through a rotation axis (13) with another second plate (14) or arm that, at one end is related to the housing (8) by a second rotation axis (15), a the pair that has an elastic element (16), preferably a spring, located between the aforementioned second plate (14) and the wall of the housing (8).
- the second plate (14) also has, at the opposite end of the second axis of rotation (15), mechanical means (17) for actuating an electric position detector (18) located on the wall of the housing (8) .
- the cable lifting apparatus uses two suspension cables (1), therefore two throats (2) of the traction sheave (3) and roller assemblies (11) while The number of adjacent adjacent plates (3a, 3b, 3c) is three.
- This invention is capable of applying to any vertical lifting device that uses two or more cables, both climbers for help in ascending by ladders, such as elevators or forklifts.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Pulleys (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2814443A CA2814443A1 (en) | 2010-10-21 | 2011-10-20 | Cable lifting apparatus |
EP11833900.1A EP2631210A4 (en) | 2010-10-21 | 2011-10-20 | CABLE-BASED LIFTING DEVICE |
BR112013009198A BR112013009198A2 (pt) | 2010-10-21 | 2011-10-20 | aparelho elevador por cabo. |
US13/879,952 US20130200318A1 (en) | 2010-10-21 | 2011-10-20 | Cable lifting apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESU201031046 | 2010-10-21 | ||
ES201031046U ES1073935Y (es) | 2010-10-21 | 2010-10-21 | Aparato elevador por cable |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012052593A1 true WO2012052593A1 (es) | 2012-04-26 |
Family
ID=43596966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2011/070724 WO2012052593A1 (es) | 2010-10-21 | 2011-10-20 | Aparato elevador por cable |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130200318A1 (es) |
EP (1) | EP2631210A4 (es) |
BR (1) | BR112013009198A2 (es) |
CA (1) | CA2814443A1 (es) |
ES (1) | ES1073935Y (es) |
WO (1) | WO2012052593A1 (es) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU466928B2 (en) * | 1973-02-08 | 1975-11-13 | Fairey Winches Limited | Cable winch |
US3965767A (en) * | 1972-12-01 | 1976-06-29 | Johannes Augustus Rinio | Driving pulley mechanism |
US4706940A (en) * | 1985-03-19 | 1987-11-17 | Greifzug Hebezeugbau Gmbh | Rope hoist apparatus |
EP0363800A1 (en) * | 1988-10-13 | 1990-04-18 | Power Climber Inc. | Hoist apparatus |
US5090666A (en) | 1988-10-13 | 1992-02-25 | May Marvin M | Hoist apparatus |
USD491333S1 (en) | 2002-07-02 | 2004-06-08 | Griefzug Hebezeugbau Gmbh | Wire rope traction hoist |
WO2004065280A1 (en) * | 2003-01-24 | 2004-08-05 | Ropepower Ltd | Powered rope climbing apparatus |
ES2306088T3 (es) | 2004-03-12 | 2008-11-01 | Avanti Stigefabrik A/S | Metodo para regular la traccion en una linea de un dispositivo para ayudar a subir por una escalera de mano y dispositivo para ayudar a subir por una escalera de mano. |
ES2316300A1 (es) | 2007-09-28 | 2009-04-01 | Elevadores Goian, S.L. | Aparato elevador por cable. |
-
2010
- 2010-10-21 ES ES201031046U patent/ES1073935Y/es not_active Expired - Fee Related
-
2011
- 2011-10-20 WO PCT/ES2011/070724 patent/WO2012052593A1/es active Application Filing
- 2011-10-20 EP EP11833900.1A patent/EP2631210A4/en not_active Withdrawn
- 2011-10-20 CA CA2814443A patent/CA2814443A1/en not_active Abandoned
- 2011-10-20 BR BR112013009198A patent/BR112013009198A2/pt not_active IP Right Cessation
- 2011-10-20 US US13/879,952 patent/US20130200318A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3965767A (en) * | 1972-12-01 | 1976-06-29 | Johannes Augustus Rinio | Driving pulley mechanism |
AU466928B2 (en) * | 1973-02-08 | 1975-11-13 | Fairey Winches Limited | Cable winch |
US4706940A (en) * | 1985-03-19 | 1987-11-17 | Greifzug Hebezeugbau Gmbh | Rope hoist apparatus |
EP0363800A1 (en) * | 1988-10-13 | 1990-04-18 | Power Climber Inc. | Hoist apparatus |
US5090666A (en) | 1988-10-13 | 1992-02-25 | May Marvin M | Hoist apparatus |
USD491333S1 (en) | 2002-07-02 | 2004-06-08 | Griefzug Hebezeugbau Gmbh | Wire rope traction hoist |
WO2004065280A1 (en) * | 2003-01-24 | 2004-08-05 | Ropepower Ltd | Powered rope climbing apparatus |
ES2306088T3 (es) | 2004-03-12 | 2008-11-01 | Avanti Stigefabrik A/S | Metodo para regular la traccion en una linea de un dispositivo para ayudar a subir por una escalera de mano y dispositivo para ayudar a subir por una escalera de mano. |
ES2316300A1 (es) | 2007-09-28 | 2009-04-01 | Elevadores Goian, S.L. | Aparato elevador por cable. |
Non-Patent Citations (1)
Title |
---|
See also references of EP2631210A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP2631210A1 (en) | 2013-08-28 |
BR112013009198A2 (pt) | 2016-07-26 |
ES1073935U (es) | 2011-03-03 |
CA2814443A1 (en) | 2012-04-26 |
US20130200318A1 (en) | 2013-08-08 |
EP2631210A4 (en) | 2014-04-09 |
ES1073935Y (es) | 2011-06-09 |
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