WO2014076687A2 - Système de frein de sécurité pour masses en chute libre - Google Patents

Système de frein de sécurité pour masses en chute libre Download PDF

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Publication number
WO2014076687A2
WO2014076687A2 PCT/IB2013/060257 IB2013060257W WO2014076687A2 WO 2014076687 A2 WO2014076687 A2 WO 2014076687A2 IB 2013060257 W IB2013060257 W IB 2013060257W WO 2014076687 A2 WO2014076687 A2 WO 2014076687A2
Authority
WO
WIPO (PCT)
Prior art keywords
weight
brake system
dynamo
safety brake
shaft
Prior art date
Application number
PCT/IB2013/060257
Other languages
English (en)
Spanish (es)
Other versions
WO2014076687A3 (fr
Inventor
Alejandro LADRÓN DE GUEVARA
Original Assignee
Serinpet Ltda. Representaciones Y Servicios De Petroleos
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 Serinpet Ltda. Representaciones Y Servicios De Petroleos filed Critical Serinpet Ltda. Representaciones Y Servicios De Petroleos
Publication of WO2014076687A2 publication Critical patent/WO2014076687A2/fr
Publication of WO2014076687A3 publication Critical patent/WO2014076687A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
    • B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/26—Operating devices pneumatic or hydraulic

Definitions

  • the present invention corresponds to the field of mechanical Engineering. Particularly with the development of brake systems for Security with improved designs.
  • the brake system of the invention does not need external sensors or external power supply to activate the brakes of security.
  • the safety brake system for bodies in free fall of the invention detects when a body enters free fall once it has travel the first 50 cm. With this mechanism the angular speed in the axis of the brake, feeds the input of the speed amplifier, you get a high speed on the output shaft of the speed amplifier and the voltage needed in the dynamo for the solenoid valve to open.
  • the system of safety brake of the invention accumulates the energy needed to activate the calipers that will stop the disk installed on the shaft and from this way to avoid the weight drop.
  • the brake system of the invention does not need of external sensors or external power supply to activate the safety brakes
  • the safety brake system for falling bodies free of the invention detects when a body goes into free fall once it has travel the first 50 cm.
  • the system of safety brake of the invention accumulates the energy needed to activate the calipers that will stop the disk installed on the shaft and from this way to avoid the weight drop.
  • Figure 1 Isometric view of the safety brake system for free fall weights.
  • FIG. 3 Detailed view of the drum that holds the two reels, where the reel 1 that winds the main guaya is shown, which, in turn, supports the weight. You can also see reel 2 that coils a secondary guava that holds a 100 kilogram counterweight.
  • FIG. 1 Top perspective view of the safety brake system for free fall weights.
  • This oil will travel quickly to the calibrators (5) and will provide the necessary force for the calibrators (5) close and catch the friction disk (6) that is mounted on the shaft (11). In this way the shaft (11) and the drum (13) are braked, which exerts the braking force through the main guide (14) connected to the weight.
  • the present invention is independent of the environment, does not require power, electrical, hydraulic or pneumatic; This system identifies when the acceleration of the weight exceeded the normal operating range and acts independently of any other system or a general system of which it is a part.
  • the present invention is also a simple system. It occupies few pieces to do the work for which it is designed.
  • the present invention is a brake system of safety for free fall weights comprising a dynamo (1) as a sensor acceleration and an electric power generator, to activate the mechanism that exerts the braking force in the downward movement of said weight.
  • a dynamo (1) as a sensor acceleration and an electric power generator, to activate the mechanism that exerts the braking force in the downward movement of said weight.
  • This composed of a dynamo (1), a chassis (8), a hydraulic oil accumulator (10), a solenoid valve (12), two bearings (4), a support of the speed amplifier (7), a drum (13) where two reels (13.1 and 13.2), a main guaya (14), a secondary guaya (15), a speed amplifier (3), a bell (2), two calipers (5), a shaft (11), a friction disc (6), two bearings (21), a bearing (18.3), about fittings (18.1, 19.1, 20.1), a T (18.2), a valve for loading the accumulator (17
  • the speed amplifier (3) is coupled, which in turn is coupled to the bell (2) that centers and supports the dynamo (1). Inside of the bell (2) there is a flexible coupling that connects the output shaft of the speed amplifier (3) and dynamo axis (1). Said amplifier of speed (3) is located on the support of the speed amplifier (7), the which is attached by screws to the chassis (8).
  • a bearing (18.3), fittings (18.1, 19.1 and 20.1), a T (18.2) and a valve for charging the accumulator (17) are mounted on the hydraulic oil accumulator (10). From there the lines connecting the accumulator (10) to the solenoid valve (12), from which two lines in tubing ( tubing ), are connected through a T (18.2) with each of the calibrators ( 5).
  • the safety brake system of the invention It also presents a main guaya (14) that holds the weight located in the first reel (13.1) wound opposite the secondary guaya (15) located on the second reel (13.2).
  • This guaya is connected and holds a 100 kilogram counterweight, which provides the necessary strength to rotate the drum (13) and collect the main guaya (14) at the time of lifting the weight by some other mechanism.
  • the main guaya (14) is always stressed, of such that when the weight is broken it falls and the acceleration of the axis begins (11) at least 1 revolution per second in the first 50 cm of fall free.
  • the present invention corresponds to the field of mechanical engineering Particularly with the development of brake systems security with improved designs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

La présente invention a trait à un système de frein de sécurité pour masses en chute libre, qui comprend une dynamo comme capteur d'accélération et générateur de puissance électrique, laquelle active en outre un mécanisme qui produit une force de freinage sur le mouvement de descente d'une masse. Ledit système comprend deux câbles dont l'un est enroulé en sens opposé à l'autre, un châssis, un disque de friction et deux paliers sur lesquels est monté un arbre. L'arbre comporte en outre un tambour sur lequel se trouvent deux enrouleurs. L'enrouleur 1 enroule le câble principal, qui soutient la masse, en sens contraire à l'enroulement par l'enrouleur 2 du câble secondaire, qui soutient le contrepoids, et inversement, ce qui correspond à un système de rétraction du câble principal. De plus, une de ses extrémité comporte un amplificateur de vitesse qui fait tourner la dynamo selon le régime nécessaire pour produire au moins 12 volts, qui sont requis par une électrovanne. De cette manière l'électrovanne s'ouvre et permet le passage d'huile hydraulique sous pression jusqu'aux mâchoires afin que celles-ci se referment sur le disque de friction et appliquent la force requise pour arrêter le mouvement de descente de la masse. L'invention est en outre caractérisée en ce qu'elle comprend un accumulateur interne d'huile hydraulique, dans lequel se trouve une vessie expansible chargée d'azote qui maintient l'huile hydraulique à une pression de mille livres (68 atm). De l'énergie accumulée est ainsi disponible, et peut être utilisée au besoin pour activer les mâchoires destinées à arrêter le disque monté sur l'arbre et à éviter ainsi la chute de la masse. Ce système détecte à quel moment un corps entre en chute libre après qu'il a parcouru les premiers 50 cm. Avec ce mécanisme, la vitesse angulaire de l'arbre du frein alimente l'entrée de l'amplificateur de vitesse, et une vitesse élevée de l'arbre de sortie de l'amplificateur de vitesse est obtenue et produit la tension nécessaire dans la dynamo pour provoquer l'ouverture de l'électrovanne.
PCT/IB2013/060257 2012-11-19 2013-11-19 Système de frein de sécurité pour masses en chute libre WO2014076687A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CO12-208562 2012-11-19
CO12208562A CO6950090A1 (es) 2012-11-19 2012-11-19 Sistema de freno de seguridad para pesas en caída libre

Publications (2)

Publication Number Publication Date
WO2014076687A2 true WO2014076687A2 (fr) 2014-05-22
WO2014076687A3 WO2014076687A3 (fr) 2014-07-24

Family

ID=50731790

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/060257 WO2014076687A2 (fr) 2012-11-19 2013-11-19 Système de frein de sécurité pour masses en chute libre

Country Status (2)

Country Link
CO (1) CO6950090A1 (fr)
WO (1) WO2014076687A2 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB158867A (en) * 1920-02-11 1922-03-22 Siemens Schuckertwerke Gmbh Improvements in or relating to brakes for hauling machines, lifts and similar hoisting apparatus
GB272222A (en) * 1926-06-05 1928-10-02 Siemens Schuckertwerke Gmbh Safety arrangement for electrically driven hoisting and like apparatus
GB434210A (en) * 1934-02-28 1935-08-28 Ernest Hunter Oliver Improvements in and connected with brake mechanisms
FR816218A (fr) * 1936-01-11 1937-08-03 Siemens Ag Frein de marche et de sûreté combiné pour machines d'extraction
US3934856A (en) * 1973-06-14 1976-01-27 Fullerton, Hodgart & Barclay Ltd. Mine hoists
EP2184252A1 (fr) * 2008-11-05 2010-05-12 Terex Demag GmbH Dispositif de freinage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201367328Y (zh) * 2009-02-26 2009-12-23 湖南金三星煤机制造有限公司 绞车超速保护装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB158867A (en) * 1920-02-11 1922-03-22 Siemens Schuckertwerke Gmbh Improvements in or relating to brakes for hauling machines, lifts and similar hoisting apparatus
GB272222A (en) * 1926-06-05 1928-10-02 Siemens Schuckertwerke Gmbh Safety arrangement for electrically driven hoisting and like apparatus
GB434210A (en) * 1934-02-28 1935-08-28 Ernest Hunter Oliver Improvements in and connected with brake mechanisms
FR816218A (fr) * 1936-01-11 1937-08-03 Siemens Ag Frein de marche et de sûreté combiné pour machines d'extraction
US3934856A (en) * 1973-06-14 1976-01-27 Fullerton, Hodgart & Barclay Ltd. Mine hoists
EP2184252A1 (fr) * 2008-11-05 2010-05-12 Terex Demag GmbH Dispositif de freinage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent Publications Ltd., London, GB; AN AN-2010-A52719 & CN 2013 673 28Y Y (HUNAN JINSANXING COAL MACHINER) 23 December 2009 *
DATABASE WPI Derwent Publications Ltd., London, GB; AN AN-2010-C51812 RETRIEVED & EP 2 184 252 A1 (TEREX DEMAG GMBH) 12 May 2010 *

Also Published As

Publication number Publication date
CO6950090A1 (es) 2014-05-20
WO2014076687A3 (fr) 2014-07-24

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