WO1999037136A1 - Lien rotatif en continu pour tete multifonctions - Google Patents

Lien rotatif en continu pour tete multifonctions Download PDF

Info

Publication number
WO1999037136A1
WO1999037136A1 PCT/CA1999/000026 CA9900026W WO9937136A1 WO 1999037136 A1 WO1999037136 A1 WO 1999037136A1 CA 9900026 W CA9900026 W CA 9900026W WO 9937136 A1 WO9937136 A1 WO 9937136A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
electrical
rotary link
continuous rotary
recited
Prior art date
Application number
PCT/CA1999/000026
Other languages
English (en)
Inventor
Renaud Bourdon
Rénald GOULET
Original Assignee
Rotobec Inc.
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 Rotobec Inc. filed Critical Rotobec Inc.
Priority to AU19580/99A priority Critical patent/AU1958099A/en
Publication of WO1999037136A1 publication Critical patent/WO1999037136A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/003—Collecting felled trees
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/005—Electrical coupling combined with fluidic coupling

Definitions

  • the present invention relates to rotary links. More specifically, the present invention is concerned with a continuous rotary link to be mounted between an articulated boom of a vehicle and a multifunction head to enable the multifunction head to continuously rotate with respect to the boom.
  • Continuous rotary links interconnecting grapples and articulated booms are widely known in the art. These rotary links usually include a body enclosed in a sheath where at least two grooves are provided between the body and the sheath. Fluid, generally oil, may thus be transmitted between the boom and the grapple even during the rotation of the grapple with respect to the boom.
  • a major drawback of the grapple of Hill et al. is that the number of grooves in the rotary link is increased by the use of a hydraulically powered saw. Indeed, since no control is possible at the grapple level, each hydraulically powered device provided on the grapple must be supplied via an independent fluid line connected to a separate output of the rotary link to allow the user to control each device independently.
  • An object of the present invention is therefore to provide an improved continuous rotary link.
  • Another object of the invention is to provide a continuous rotary link provided with electrical connectors enabling electrical signals to be exchanged between the vehicle and the multifunction head.
  • a continuous rotary link for a multifunction head comprising: a fixed assembly having a longitudinal axis; a rotatable assembly mounted to the fixed assembly; the rotatable assembly being rotatable about the longitudinal axis; means for transmitting fluid from the fixed assembly to the rotatable assembly; the fluid transmitting means having a first portion mounted to the fixed assembly and a second portion mounted to the rotatable assembly; at least one electrical signal transmission assembly including a first electrical connector mounted to the fixed assembly and a second electrical connector mounted to the rotatable assembly; one of the first and second electrical connectors being circular and coaxial with the longitudinal axis; the other of the first and second electrical connector contacting the one electrical connectors and running on the one electrical connector upon rotation of the rotatable assembly about the axis; whereby an exchange of electrical signals between the fixed assembly and the rotatable assembly is enabled by the continuous electrical contact between the first and second electrical connectors.
  • a continuous rotary link for a multifunction head comprising: a fixed assembly having a longitudinal axis; a rotatable assembly rotatably mounted to the fixed assembly and configured to receive the multifunction head; means for transmitting fluid between the fixed assembly and the rotatable assembly; the fluid transmitting means having a first portion mounted to the fixed assembly and a second portion mounted to the rotatable assembly; means for transmitting electrical signals between the fixed assembly and the rotatable assembly; the electrical signal transmitting means having a first portion mounted to the fixed assembly and a second portion mounted to the rotatable assembly.
  • multifunction head used herein and in the appended claims is to be construed as any attachment to be mounted to an articulated and/or telescopic boom of a vehicle, including a controller configured to receive electrical signals from the vehicle and to control specific elements of the attachment in response to these electrical signals.
  • Figure 1 is a perspective view illustrating a continuous rotary link according to an embodiment of the present invention provided between a boom of a vehicle and a multifunction head;
  • Figure 2 is a perspective view illustrating an enlarged view of the continuous rotary link of Figure 1 ;
  • Figure 3 is a exploded perspective view of the continuous rotary link of Figure 1 ;
  • Figure 4 is a side elevational view of the electrical connectors of the continuous rotary link of Figure 1 ; and Figure 5 is a sectional view taken along line 5-5 of Figure 4.
  • the continuous rotary link 10 includes a fixed assembly, generally denoted 12, shown mounted to the end of an articulated boom 14, illustrated in dashed lines, and a rotatable assembly, generally denoted 16, rotatably mounted to the fixed assembly 12 and to which a harvesting head 18, illustrated in dashed lines, is mounted.
  • harvesting head 18 is only an example of a multifunction head that could be mounted to the rotatable assembly 16. It is also to be noted that the articulated boom 14 could be replaced by a telescopic boom (not shown).
  • the continuous rotary link 10 enables hydraulic fluid to be exchanged between three hydraulic fluid conduits 20, 22 and 24 of the vehicle (not shown) and three hydraulic fluid conduits 26, 28 and 30 of the harvesting head 18. These three hydraulic fluid conduits 26, 28 and 30 are sufficient to provide fluid pressure to operate the various devices of the harvesting head 18 as will be described hereinafter.
  • the fluid conduit 28 is used to supply hydraulic fluid from a hydraulic fluid reservoir (not shown) at a predetermined pressure
  • the conduit 26 is the return conduit to the hydraulic fluid reservoir
  • the third hydraulic fluid conduit 30 is a drain returning to the fluid reservoir.
  • one feature of the present invention is to enable electrical signals to be exchanged between the vehicle and the harvesting head 18 while allowing continuous rotation of the harvesting head 18 about a rotation axis 32.
  • An multiple conductor electrical cable 34 is therefore connected to the fixed assembly 12 and a corresponding multiple conductor electrical cable 36 is connected to the rotatable assembly 16.
  • the electrical connections between the electrical conductors of the cables 34 and 36 are maintained during the rotation of the rotatable assembly 16 about axis 32.
  • the exchange of electrical signals between the vehicle and the harvesting head 18 enables the control of a plurality of hydraulically powered devices of the harvesting head 18 without requiring a great number of fluid conduits.
  • the electrical signals supplied to the harvesting head 18 may be used to control electrically actuated valves (not shown) used to supply hydraulic fluid to the hydraulically powered devices of the harvesting head upon request by the user.
  • the vehicle includes a first controller (not shown) to which the electrical cable 34 is connected and the harvesting head 18 includes a second controller (not shown) to which the electrical cable 36 is connected.
  • the first and second controllers may thus exchange power and control electrical signals enabling the second controller to control the valves (not shown) supplying fluid to the devices of the head 18.
  • sensors for example position sensors, may be provided on the head 18 to supply data to the first and second controllers.
  • the harvesting head 18 illustrated in Figure 1 includes a plurality of hydraulically powered devices to be controlled by the second controller.
  • the harvesting head 18 includes grapples 38, 40, a saw 42, feeder rollers 44, 46, a hydraulic cylinder 48 used to pivot the pivotable portion 50 of the head 18 about pivot pin 52.
  • FIG. 2 of the appended drawings illustrates the continuous rotary link 10 in an enlarged perspective view. Since the operation of conventional continuous rotary links transmitting fluids from a fixed assembly to a rotatable assembly is believed well known to those skilled in the art, the fluid transmission system of the continuous rotary link 10 will only be described briefly hereinafter.
  • the fixed assembly 12 includes three fluid conduit connectors 54, 56 and 58 to which the fluid conduits 20, 22 and 24 may respectively be connected. As can be better seen from the exploded view of Figure 3, the fixed assembly 12 is provided with a cylindrical portion 62 including three circumferential channels 64, 66 and 68 each provided with an aperture connecting the channel to one of the fluid conduit connectors.
  • the rotatable assembly 16 includes a cylindrical sleeve 70 having an internal diameter slightly larger than the outer diameter of the cylindrical portion 62. The sleeve 70 is provided with three fluid conduit connectors 72, 74 and 76 positioned to be registered with a respective circumferential channel 64, 66 or 68 when the sleeve 70 is mounted to the cylindrical portion 62. Each fluid connector 72, 74 and 76 is configured to receive one of the fluid conduits 26, 28 and 30. 8
  • Fluid exchange between the fixed assembly 12 and the rotatable assembly 16 is therefore possible even during the rotation of the rotatable assembly 16 about the cylindrical portion 62.
  • circumferential channels could be provided in the internal surface of the sleeve 70 to replace the circumferential channels 64, 66 and 68 without modifying significantly the operation of the continuous rotary link 10.
  • a hydraulically powered motor 78 of the rotatable assembly 16 has a pinion 80 engaged to a gear 82 fixedly mounted to the cylindrical portion 62 to cause the rotation of the rotatable assembly 16 about the rotation axis 32 upon activation of the motor 78.
  • the fixed assembly 12 and the rotatable assembly 16 could be swapped, i.e. the rotatable assembly 16 would be fixedly mounted to the boom 14, becoming a fixed assembly, while the fixed assembly 12 would be rotatably inserted in the rotatable assembly 16, becoming a rotatable assembly.
  • the continuous rotary link 10 of the present invention also includes an electrical signal transmission system for transmitting electrical signals from the fixed assembly 12 to the rotatable assembly 16.
  • the electrical signal transmission system includes a first electrical conductor port 84 provided in the fixed assembly 12, an electrical conductor conduit having a transversal portion 86 and a longitudinal portion (not shown) provided in the cylindrical portion 62, a first electrical connector assembly 88 ( Figure 3) mounted to the end of the cylindrical portion 62, a second electrical connector assembly 90 ( Figure 3) mounted to the cylindrical sleeve 70 and a second electrical conductor port 92.
  • Figures 4 and 5 of the appended drawings illustrate a part of the first and second electrical connector assemblies 88 and 90.
  • the first electrical connector assembly 88 includes four circular electrical connectors 94, 96, 98 and 100 mounted to a cylindrical projection 102 of the assembly 88 via five electrical insulators 104, 106, 108, 110 and 112 and via a mounting element 114.
  • the first multiple conductor electrical cable 34 including four electrical conductors 118, 120, 122 and 124, is inserted in the electrical conductor conduit of the fixed assembly 12.
  • the second electrical connector assembly 90 includes four electrical contact brushes 126, 128, 130 and 132 respectively mounted to the assembly 90 via a support 134 (schematically illustrated in dashed lines in Figure 4) to be in contact with one of the connector 94-
  • the second multiple conductor electrical cable 36 including four electrical conductors 136, 138, 140 and 142 is inserted in the electrical conductor port 92 of the rotatable assembly 16. Each conductor 136-142 is electrically connected to a respective electrical contact brush 126-132.
  • the respective electrical contact between the electrical connectors 94-100 and the electrical contact brushes 126-132 cause the respective continuous electrical connections between the electrical conductors 118-124 and the electrical conductors 136-142.
  • the electrical contact between the first controller (not shown) of the vehicle and the second controller (not shown) of the harvesting head 18 may thus be continuous during the rotation of the harvesting head 18 with respect to the boom 14 of the vehicle.
  • the electrical signal transmission system to allow the exchange of electrical signals between the fixed assembly 12 and the rotatable assembly 16 could be different from the electrical signal transmission system described hereinabove.
  • the brushes 116-122 could be replaced by ball bearing type brushes (not shown) or the brushes could be mounted to the fixed assembly 12 while the circular connectors would be mounted to the rotatable assembly 16.
  • any adequate system 11

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

L'invention concerne un lien rotatif en continu (10) monté entre une flèche articulée (14) d'un véhicule et une tête multifonctions (18). Le lien rotatif en continu (10) comprend un ensemble fixe (12) monté sur la flèche articulée (14) et un ensemble rotatif (16) monté rotatif sur l'ensemble fixe (12) et sur lequel on peut monter une tête multifonctions (18). Des canaux périphériques (64, 66, 68) de transport de fluides sont faits entre les ensembles fixe et rotatif (12, 16) afin de permettre le transport d'un fluide hydraulique entre ces deux ensembles même lors de la rotation de l'ensemble rotatif (16) par rapport à l'ensemble fixe (12). Le lien rotatif en continu comprend également des connecteurs électriques (94, 96, 98, 100) montés sur les ensembles fixe et rotatif (12, 16) de manière à rester en contact électrique lors de la rotation de l'ensemble rotatif (16). De cette manière, un échange de signaux électriques peut avoir lieu entre les ensembles fixe et rotatif (126, 128, 130, 132) pendant la rotation en continu de l'ensemble rotatif (16).
PCT/CA1999/000026 1998-01-20 1999-01-15 Lien rotatif en continu pour tete multifonctions WO1999037136A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU19580/99A AU1958099A (en) 1998-01-20 1999-01-15 Continuous rotary link for multifunction head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US883598A 1998-01-20 1998-01-20
US09/008,835 1998-01-20

Publications (1)

Publication Number Publication Date
WO1999037136A1 true WO1999037136A1 (fr) 1999-07-29

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WO (1) WO1999037136A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003008716A1 (fr) * 2001-07-18 2003-01-30 Rotobec Inc. Couplage rotatif a moteur monte sur fleche
WO2003068655A1 (fr) * 2002-01-21 2003-08-21 Indexator Ab Dispositif de rotation
ES2241415A1 (es) * 2003-01-29 2005-10-16 Enrique Angel Vidal Ramo Sistema rotativo mixto neumatico-electrico.
US7311489B2 (en) 2001-11-26 2007-12-25 Komatsu Forest Ab Device for mounting of a turnable implement
EP2234213A1 (fr) 2009-03-26 2010-09-29 Mbd S.R.L. Joint pour transmettre et distribuer l'alimentation électrique, signaux électriques, ou plusieurs fluides pressurisés, particulièrement adapté aux machines pour étalonner et lisser des matériaux à base de pierre
WO2012067559A1 (fr) * 2010-11-15 2012-05-24 Indexator Group Ab Procédé et dispositif associés à un bras de travail
DE102011006322A1 (de) * 2011-03-29 2012-10-04 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Drehdurchführung für eine Handhabungseinheit
EP2669439A1 (fr) * 2012-05-29 2013-12-04 Giorgio Bini Joint rotatif pour une transmission electrohydraulique
CN109195899A (zh) * 2016-05-25 2019-01-11 蓬塞有限公司 转动装置的结构、相应的转动装置以及林业机械
WO2019193255A1 (fr) * 2018-04-04 2019-10-10 Lauri Ketonen Dispositif rotatif entièrement rotatif
EP3388385B1 (fr) 2017-04-12 2021-09-08 EPSILON Kran GmbH. Entraînement rotatif
US11667052B2 (en) * 2018-09-05 2023-06-06 Kelly J. Olsen Timber processing system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901270A (en) * 1973-11-29 1975-08-26 Caterpillar Tractor Co Articulated support for hydraulic hose
FR2414803A1 (fr) * 1978-01-11 1979-08-10 Lenoir Raoul Ets Prise tournante pour l'alimentation de recepteurs d'energie electrique en particulier electro-aimants de levage
US4183599A (en) * 1978-03-23 1980-01-15 Wetzig Lloyd M Vehicle air and electrical connector
US5441090A (en) 1994-02-01 1995-08-15 Hill; Terrence R. Tree cutting and wood manipulating grapple
US5498163A (en) * 1993-04-30 1996-03-12 Kuroda Precision Industries, Ltd. Fluid/electrical rotary joint
US5632625A (en) * 1995-05-26 1997-05-27 Apollo Machinery, Ltd. Rotary electrical coupling with circumferential conductive elastomer brush

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901270A (en) * 1973-11-29 1975-08-26 Caterpillar Tractor Co Articulated support for hydraulic hose
FR2414803A1 (fr) * 1978-01-11 1979-08-10 Lenoir Raoul Ets Prise tournante pour l'alimentation de recepteurs d'energie electrique en particulier electro-aimants de levage
US4183599A (en) * 1978-03-23 1980-01-15 Wetzig Lloyd M Vehicle air and electrical connector
US5498163A (en) * 1993-04-30 1996-03-12 Kuroda Precision Industries, Ltd. Fluid/electrical rotary joint
US5441090A (en) 1994-02-01 1995-08-15 Hill; Terrence R. Tree cutting and wood manipulating grapple
US5632625A (en) * 1995-05-26 1997-05-27 Apollo Machinery, Ltd. Rotary electrical coupling with circumferential conductive elastomer brush

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066076B2 (en) 2001-07-18 2006-06-27 Rotobec Inc. Motor-driven, boom-mounted rotary coupling
WO2003008716A1 (fr) * 2001-07-18 2003-01-30 Rotobec Inc. Couplage rotatif a moteur monte sur fleche
US7311489B2 (en) 2001-11-26 2007-12-25 Komatsu Forest Ab Device for mounting of a turnable implement
US8721248B2 (en) 2002-01-21 2014-05-13 Indexator Group Ab Rotator
WO2003068655A1 (fr) * 2002-01-21 2003-08-21 Indexator Ab Dispositif de rotation
ES2241415A1 (es) * 2003-01-29 2005-10-16 Enrique Angel Vidal Ramo Sistema rotativo mixto neumatico-electrico.
EP2234213A1 (fr) 2009-03-26 2010-09-29 Mbd S.R.L. Joint pour transmettre et distribuer l'alimentation électrique, signaux électriques, ou plusieurs fluides pressurisés, particulièrement adapté aux machines pour étalonner et lisser des matériaux à base de pierre
EP2640658B1 (fr) 2010-11-15 2020-01-15 Rototilt Group AB Dispositif associé à un bras de travail
WO2012067559A1 (fr) * 2010-11-15 2012-05-24 Indexator Group Ab Procédé et dispositif associés à un bras de travail
DE102011006322B4 (de) * 2011-03-29 2013-12-24 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Drehdurchführung für eine Handhabungseinheit
DE102011006322A1 (de) * 2011-03-29 2012-10-04 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Drehdurchführung für eine Handhabungseinheit
CN103457132A (zh) * 2012-05-29 2013-12-18 基奥吉欧·碧尼 具体用于流体驱动传动的旋转接头
EP2669439A1 (fr) * 2012-05-29 2013-12-04 Giorgio Bini Joint rotatif pour une transmission electrohydraulique
CN109195899B (zh) * 2016-05-25 2020-11-03 蓬塞有限公司 转动装置的结构、相应的转动装置以及林业机械
DE202017007033U1 (de) 2016-05-25 2019-03-25 Ponsse Oyj Struktur einer Drehvorrichtung und eine entsprechende Drehvorrichtung sowie eine Forstmaschine
EP3464153A4 (fr) * 2016-05-25 2020-06-03 Ponsse OYJ Structure d'un dispositif de rotation, dispositif de rotation correspondant, et machine forestière
CN109195899A (zh) * 2016-05-25 2019-01-11 蓬塞有限公司 转动装置的结构、相应的转动装置以及林业机械
RU2738981C2 (ru) * 2016-05-25 2020-12-21 Понссе Ойй Конструкция ротационного устройства и соответствующее ротационное устройство, и лесозаготовительная машина
US11365526B2 (en) 2016-05-25 2022-06-21 Ponsse Oyj Structure of a rotation device, and a corresponding rotation device, and a forest machine
EP3388385B1 (fr) 2017-04-12 2021-09-08 EPSILON Kran GmbH. Entraînement rotatif
WO2019193255A1 (fr) * 2018-04-04 2019-10-10 Lauri Ketonen Dispositif rotatif entièrement rotatif
US11667052B2 (en) * 2018-09-05 2023-06-06 Kelly J. Olsen Timber processing system and method

Also Published As

Publication number Publication date
AU1958099A (en) 1999-08-09

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