WO2015042680A1 - Compact hydraulic device - Google Patents

Compact hydraulic device Download PDF

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Publication number
WO2015042680A1
WO2015042680A1 PCT/BR2014/000355 BR2014000355W WO2015042680A1 WO 2015042680 A1 WO2015042680 A1 WO 2015042680A1 BR 2014000355 W BR2014000355 W BR 2014000355W WO 2015042680 A1 WO2015042680 A1 WO 2015042680A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
mechanical coupling
coupling
support
rod
Prior art date
Application number
PCT/BR2014/000355
Other languages
French (fr)
Portuguese (pt)
Inventor
Alvino ROCHA
Bruno Pereira COSTA
Francisco Ferreira DE SÁ
Geraldo Firme RIBEIRO
Original Assignee
Vale S.A.
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 Vale S.A. filed Critical Vale S.A.
Publication of WO2015042680A1 publication Critical patent/WO2015042680A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/064—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races fluid driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven

Definitions

  • the present invention relates to a compact hydraulic device used to draw mechanical couplings.
  • the hydraulic cylinder rod touches the shim positioned near the end of the shaft that contains the coupling to be withdrawn and pushes the cylinder body in the opposite direction to the movement of the rod.
  • the H-type iron supports and maintains the parallel risers, while the lift carriage supports the drawn coupling.
  • the present invention aims to provide a compact hydraulic device for withdrawing mechanical couplings, facilitating their assembly, reducing the number of components and reducing the risk of accidents.
  • the present invention relates to a compact hydraulic coupling disassembly device, comprising: a double acting hydraulic cylinder with a rod and a body, the cylinder being perpendicularly attached to a support, the holder attached to an external face of the mechanical coupling , the hydraulic cylinder rod being axially held in contact with a mechanical coupling shaft end by applying an action force to this shaft end, the cylinder body being offset in the opposite direction to the shaft end by dragging the bracket and mechanical coupling fixed to it.
  • Photo 1 is a first perspective view of the compact hydraulic device object of this invention.
  • Photo 2 is a side view of the compact hydraulic device object of this invention.
  • Photo 3 - is a detail view of the attachment of the hydraulic device support to the mechanical coupling.
  • Photo 4 is a second perspective view of the compact hydraulic device object of this invention.
  • the compact hydraulic coupling disassembly device 10 comprises a double acting hydraulic cylinder 30 perpendicularly associated with a support 40 which is fixed to the mechanical coupling 20.
  • the double acting hydraulic cylinder 30 is provided with a rod (not shown) and a body 32.
  • a preferably parallelepiped shaped support 40 has a first surface 41 attached to the body 32 of cylinder 30, so that the cylinder 30 is perpendicularly associated with the bracket 40.
  • Other geometric shapes may be assigned to the bracket 40 provided that it retains its function and permits the perpendicular association of the cylinder 30.
  • This bracket 40 further comprises a second surface 42 which is fixed to an outer face 21 of the mechanical coupling 20 by at least one pair of adjustable screws 43 inserted in at least one pair of through oblong slots 50, 50 ', arranged on the bracket 40.
  • the hydraulic cylinder rod 30 is axially maintained in contact with a mechanical coupling shaft end 20.
  • a shim can be positioned between the shaft end and the stem to increase the stroke of this rod.
  • the compact hydraulic device 10 is positioned frontally to the shaft end and the mechanical coupling 20 to be removed, so that the second surface 42 of the bracket 40, which is already fixed to the body 32 of the cylinder 30, is parallel to the outer face 21 of coupling 20.
  • Adjustable screws 43 are inserted into the oblong slots 50, 50 'and fixed in holes on the outer face 21 of the coupling 20.
  • the presence of the oblong slots 50, 50' allows a better adjustment of the screws 43 and the use of the same device 10 stops couplings 20 of different dimensions.
  • Device 10 is mounted directly to the face of the workpiece to be secured by two standard bolts 43 eliminating the risk of shearing thereof. After actuating cylinder 30 on the shaft face, the entire device / part to be removed becomes a single element, facilitating its removal.
  • the cylinder rod 30 applies a force of action to the fixed shaft end.
  • the body 32 of the cylinder 30 is moved counterclockwise, i.e. opposite the bracket 40 by dragging this bracket 40 with it. and the mechanical coupling 20 fixed to the bracket 40.

Abstract

An invention patent for a "compact hydraulic device". A compact hydraulic device (10) for disassembling a mechanical coupling (20) is described, comprising a dual-action hydraulic cylinder (30) provided with a rod (31) and a body (32), the cylinder (30) being affixed perpendicularly to a supporting member (40), the supporting member (40) being affixed to an external face (21) of the mechanical coupling (20), the rod (31) of the hydraulic cylinder (30) being held axially in contact with an axle end (22) of the mechanical coupling (20), applying an action to this axle end (22), the body (32) of the cylinder (30) being shifted away from the axle end (22), entraining the supporting member (40) and the mechanical coupling (20) affixed thereto.

Description

"DISPOSITIVO HIDRÁULICO COMPACTO"  "COMPACT HYDRAULIC DEVICE"
A presente invenção refere-se a um dispositivo hidráulico compacto utilizado para sacar acoplamentos mecânicos.  The present invention relates to a compact hydraulic device used to draw mechanical couplings.
Descrição do estado da técnica  Description of the prior art
Usualmente, quando é necessário sacar acoplamentos mecânicos de máquinas, utifizam-se duas barras roscadas que são fixadas na face da peça a ser retirada. A seguir, é montado um cilindro hidráulico dupla ação, um calço para prolongamento do curso do cilindro, um ferro tipo H, tirantes e arruelas espaçadoras. Um carro elevatório é também utilizado para sustentar o acoplamento logo que retirado da máquina. O cilindro hidráulico atua entre a face do eixo onde está a peça montada e o ferro "H" por onde passam as barras roscadas.  Usually, when it is necessary to remove mechanical couplings from machines, two threaded bars are used which are fixed to the face of the part to be removed. Next, a double acting hydraulic cylinder, a cylinder stroke extension shim, an H-type iron, tie rods and spacer washers are mounted. A forklift is also used to support the coupling as soon as it is removed from the machine. The hydraulic cylinder acts between the shaft face where the assembled part is and the iron "H" where the threaded bars pass.
A haste do cilindro hidráulico toca o calço posicionado junto à ponta do eixo que contém o acoplamento a ser sacado e empurra o corpo do cilindro na direção contrária ao movimento da haste. Os tirantes, fixados ao acoplamento, o arrastam acompanhando o curso da haste do cilindro. O ferro tipo H dá sustentação e mantém os tirantes paralelos, enquanto que o carro elevatório sustenta o acoplamento sacado.  The hydraulic cylinder rod touches the shim positioned near the end of the shaft that contains the coupling to be withdrawn and pushes the cylinder body in the opposite direction to the movement of the rod. The tie rods, attached to the coupling, drag it along the course of the cylinder rod. The H-type iron supports and maintains the parallel risers, while the lift carriage supports the drawn coupling.
Neste caso, para que o cilindro atue é necessário que todo este conjunto de peças esteja travado com porcas de fixação, oferecendo alto risco de rompimento das barras roscadas já que qualquer diferença milimétrica entre as barras roscadas ou mesmo a diferença do tipo do aço usado em sua fabricação resulta em resistências mecânicas diferentes que podem causar o cisalhamento de uma das peças. Quando esta barra se rompe ela é projetada como uma flecha devido à força de atuâção do cilindro.  In this case, for the cylinder to work, this entire set of parts must be locked with lock nuts, offering a high risk of breakage of the threaded bars since any millimeter difference between the threaded bars or even the type difference of the steel used in Its manufacture results in different mechanical resistances that can cause shear of one of the parts. When this bar breaks it is projected like an arrow due to the cylinder's acting force.
Objetivo da invenção  Purpose of the invention
A presente invenção tem como objetivo prover um dispositivo hidráulico compacto para sacar acoplamentos mecânicos, facilitando a sua montagem, reduzindo o número de componentes e reduzindo o risco de acidentes.  The present invention aims to provide a compact hydraulic device for withdrawing mechanical couplings, facilitating their assembly, reducing the number of components and reducing the risk of accidents.
Breve descrição da invenção A presente invenção tem como objeto um dispositivo hidráulico compacto para desmontagem de acoplamento mecânico, compreendendo: um cilindro hidráulico dupla ação dotado de uma haste e um corpo, o cilindro sendo perpendicularmente fixado a um suporte, o suporte fixado a uma face externa do acoplamento mecânico, a haste do cilindro hidráulico sendo mantida axialmente em contato com uma ponta de eixo do acoplamento mecânico, aplicando uma força de ação a esta ponta de eixo, o corpo do cilindro sendo deslocado em sentido contrário à ponta de eixo, arrastando o suporte e o acoplamento mecânico a ele fixado. Brief Description of the Invention The present invention relates to a compact hydraulic coupling disassembly device, comprising: a double acting hydraulic cylinder with a rod and a body, the cylinder being perpendicularly attached to a support, the holder attached to an external face of the mechanical coupling , the hydraulic cylinder rod being axially held in contact with a mechanical coupling shaft end by applying an action force to this shaft end, the cylinder body being offset in the opposite direction to the shaft end by dragging the bracket and mechanical coupling fixed to it.
Descrição resumida dos desenhos  Brief Description of the Drawings
Foto 1 - é uma primeira vista em perspectiva do dispositivo hidráulico compacto, objeto desta invenção;  Photo 1 is a first perspective view of the compact hydraulic device object of this invention;
Foto 2 - é uma vista lateral do dispositivo hidráulico compacto, objeto desta invenção;  Photo 2 is a side view of the compact hydraulic device object of this invention;
Foto 3 - é uma vista em detalhe da fixação do suporte do dispositivo hidráulico ao acoplamento mecânico; e  Photo 3 - is a detail view of the attachment of the hydraulic device support to the mechanical coupling; and
Foto 4 - é uma segunda vista em perspectiva do dispositivo hidráulico compacto, objeto desta invenção.  Photo 4 is a second perspective view of the compact hydraulic device object of this invention.
Descrição detalhada das figuras  Detailed Description of the Figures
De acordo com uma concretização preferencial e como pode ser visto a partir da Foto 1 , o dispositivo hidráulico compacto 10 para desmontagem de acoplamento mecânico 20, objeto desta invenção, compreende um cilindro hidráulico dupla ação 30 perpendicularmente associado a um suporte 40 que é fixado ao acoplamento mecânico 20.  According to a preferred embodiment and as can be seen from Photo 1, the compact hydraulic coupling disassembly device 10, object of this invention, comprises a double acting hydraulic cylinder 30 perpendicularly associated with a support 40 which is fixed to the mechanical coupling 20.
Mais especificamente, o cilindro hidráulico dupla ação 30 é dotado de uma haste (não ilustrada) e um corpo 32. Um suporte 40 de formato preferencialmente paralelepipédico possui uma primeira superfície 41 fixada ao corpo 32 do cilindro 30, de modo que o cilindro 30 fique perpendicularmente associado ao suporte 40. Outras formas geométricas podem ser atribuídas ao suporte 40, desde que mantenha a sua função e permita a associação perpendicular o cilindro 30. Este suporte 40 compreende, ainda, uma segunda superfície 42 que é fixada a uma face externa 21 do acoplamento mecânico 20, por meio de pelo menos um par de parafusos 43 reguláveis inseridos em pelo menos um par de rasgos oblongos 50, 50' passantes, dispostos no suporte 40. More specifically, the double acting hydraulic cylinder 30 is provided with a rod (not shown) and a body 32. A preferably parallelepiped shaped support 40 has a first surface 41 attached to the body 32 of cylinder 30, so that the cylinder 30 is perpendicularly associated with the bracket 40. Other geometric shapes may be assigned to the bracket 40 provided that it retains its function and permits the perpendicular association of the cylinder 30. This bracket 40 further comprises a second surface 42 which is fixed to an outer face 21 of the mechanical coupling 20 by at least one pair of adjustable screws 43 inserted in at least one pair of through oblong slots 50, 50 ', arranged on the bracket 40.
A haste do cilindro hidráulico 30 é mantida axialmente em contato com uma ponta de eixo do acoplamento mecânico 20. Opcionalmente é possível posicionar um calço entre a ponta de eixo e a haste para aumentar o curso de ação desta haste.  The hydraulic cylinder rod 30 is axially maintained in contact with a mechanical coupling shaft end 20. Optionally, a shim can be positioned between the shaft end and the stem to increase the stroke of this rod.
O dispositivo hidráulico compacto 10 é posicionado frontalmente à ponta de eixo e ao acoplamento mecânico 20 que se deseja sacar, de modo que a segunda superfície 42 do suporte 40, que já está fixado ao corpo 32 do cilindro 30 fique paralelamente encostada à face externa 21 do acoplamento 20.  The compact hydraulic device 10 is positioned frontally to the shaft end and the mechanical coupling 20 to be removed, so that the second surface 42 of the bracket 40, which is already fixed to the body 32 of the cylinder 30, is parallel to the outer face 21 of coupling 20.
Os parafusos 43 reguláveis são inseridos nos rasgos oblongos 50, 50' e fixados em furos da face externa 21 do acoplamento 20. A presença dos rasgos oblongos 50, 50' possibilita um melhor ajuste dos parafusos 43 e o uso do mesmo dispositivo 10 pára acoplamentos 20 de diferentes dimensões.  Adjustable screws 43 are inserted into the oblong slots 50, 50 'and fixed in holes on the outer face 21 of the coupling 20. The presence of the oblong slots 50, 50' allows a better adjustment of the screws 43 and the use of the same device 10 stops couplings 20 of different dimensions.
O dispositivo 10 é montado diretamente na face da peça a ser sacada, fixado por dois parafusos 43 padronizados eliminando o risco de cisalhamento dos mesmos. Após atuação do cilindro 30 na face do eixo todo o dispositivo/peça a ser sacada passam a ser um só elemento, facilitando a sua retirada.  Device 10 is mounted directly to the face of the workpiece to be secured by two standard bolts 43 eliminating the risk of shearing thereof. After actuating cylinder 30 on the shaft face, the entire device / part to be removed becomes a single element, facilitating its removal.
Uma vez fixado o dispositivo 10 ao acoplamento, a haste do cilindro 30 aplica uma força de ação à ponta de eixo, que é fixa. Deste modo, em razão da força de reação e por o eixo do acoplamento 20 estar fixo, o corpo 32 do cilindro 30 é deslocado em sentido contrário à ponta de eixo, isto é, em sentido contrário ao suporte 40, arrastando consigo este suporte 40 e o acoplamento mecânico 20 fixado ao suporte 40.  Once the device 10 is secured to the coupling, the cylinder rod 30 applies a force of action to the fixed shaft end. Thus, because of the reaction force and the coupling shaft 20 being fixed, the body 32 of the cylinder 30 is moved counterclockwise, i.e. opposite the bracket 40 by dragging this bracket 40 with it. and the mechanical coupling 20 fixed to the bracket 40.
Tirantes de suporte são mantidos presos ao suporte 40 durante a operação, de modo que, após a retirada do acoplamento 20 estes tirantes sustentam o acoplamento 20 fixo ao dispositivo 10 em elevação para que sejam posicionados na bancada ou local de preferência. Tendo sido descrito um exemplo de concretização preferido, deve ser entendido que o escopo da presente invenção abrange outras possíveis variações, sendo limitado tão somente pelo teor das reivindicações apensas, aí incluídos os possíveis equivalentes. Support rods are held securely to bracket 40 during operation, so that after removal of coupling 20 these rods support coupling 20 attached to the elevating device 10 so that they are positioned on the bench or place of preference. Having described a preferred embodiment example, it should be understood that the scope of the present invention encompasses other possible variations, being limited only by the content of the appended claims, including the possible equivalents thereof.

Claims

REIVINDICAÇÕES
1. Dispositivo hidráulico compacto ( O) para desmontagem de acoplamento mecânico (20), caracterizado pelo fato de que compreende:  1. Compact hydraulic coupling disassembly device (O) (20), characterized in that it comprises:
um cilindro hidráulico dupla ação (30) dotado de uma haste (31) e um corpo (32), o cilindro (30) sendo perpendicularmente fixado a um suporte (40), o suporte (40) fixado a uma face externa (21) do acoplamento mecânico a double acting hydraulic cylinder (30) having a rod (31) and a body (32), the cylinder (30) being perpendicularly attached to a support (40), the support (40) attached to an outer face (21) mechanical coupling
(20), (20),
a haste (31) do cilindro hidráulico (30) sendo mantida axialmente em contato com uma ponta de eixo (22) do acoplamento mecânico (20), aplicando um força de ação a esta ponta de eixo (22),  the rod (31) of the hydraulic cylinder (30) being held axially in contact with a shaft end (22) of the mechanical coupling (20) by applying an action force to this shaft end (22),
o corpo (32) do cilindro (30) sendo deslocado em sentido contrário à ponta de eixo (22), arrastando o suporte (40) e o acoplamento mecânico (20) a ele fixado.  the body (32) of the cylinder (30) being offset in the opposite direction to the shaft end (22) by dragging the support (40) and the mechanical coupling (20) attached thereto.
2. Dispositivo, de acordo com a reivindicação 1 , caracterizado pelo fato de que o suporte (40) é fixado ao corpo (32) do cilindro (30).  Device according to Claim 1, characterized in that the support (40) is fixed to the body (32) of the cylinder (30).
3. Dispositivo, de acordo com a reivindicação 1 , caracterizado pelo fato de que o suporte (40) é fixado à face externa (21) do acoplamento mecânico (20) por meio de parafusos (43) reguláveis.  Device according to Claim 1, characterized in that the support (40) is fixed to the outer face (21) of the mechanical coupling (20) by means of adjustable screws (43).
PCT/BR2014/000355 2013-09-25 2014-09-25 Compact hydraulic device WO2015042680A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102013024584-4 2013-09-25
BR102013024584A BR102013024584A2 (en) 2013-09-25 2013-09-25 compact hydraulic device

Publications (1)

Publication Number Publication Date
WO2015042680A1 true WO2015042680A1 (en) 2015-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
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WO (1) WO2015042680A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20162540A1 (en) * 2016-04-13 2017-10-13 E P P Euro Press Pack S P A MECHANICAL PIECES DISASSEMBLY EQUIPMENT, PARTICULARLY FOR RAILWAY MATERIAL

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114260684B (en) * 2021-12-27 2023-04-14 沈阳透平机械股份有限公司 Method for disassembling oil leakage fault half coupling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138701A1 (en) * 1971-08-03 1973-02-15 Preussag Ag DEVICE FOR REMOVING MACHINE PARTS FROM SHAFTS, IN PARTICULAR COUPLINGS, PINIONS OR DGL. OF GEAR SHAFTS
US5333377A (en) * 1993-05-25 1994-08-02 Reliance Electric Industrial Company Change gear apparatus and method
US20130074306A1 (en) * 2011-09-23 2013-03-28 Darren MUENCHRATH Suspension bushing service tool and method of use

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138701A1 (en) * 1971-08-03 1973-02-15 Preussag Ag DEVICE FOR REMOVING MACHINE PARTS FROM SHAFTS, IN PARTICULAR COUPLINGS, PINIONS OR DGL. OF GEAR SHAFTS
US5333377A (en) * 1993-05-25 1994-08-02 Reliance Electric Industrial Company Change gear apparatus and method
US20130074306A1 (en) * 2011-09-23 2013-03-28 Darren MUENCHRATH Suspension bushing service tool and method of use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20162540A1 (en) * 2016-04-13 2017-10-13 E P P Euro Press Pack S P A MECHANICAL PIECES DISASSEMBLY EQUIPMENT, PARTICULARLY FOR RAILWAY MATERIAL

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