WO2014168541A1 - Dispositif de pivot au niveau d'un rotateur - Google Patents

Dispositif de pivot au niveau d'un rotateur Download PDF

Info

Publication number
WO2014168541A1
WO2014168541A1 PCT/SE2014/000037 SE2014000037W WO2014168541A1 WO 2014168541 A1 WO2014168541 A1 WO 2014168541A1 SE 2014000037 W SE2014000037 W SE 2014000037W WO 2014168541 A1 WO2014168541 A1 WO 2014168541A1
Authority
WO
WIPO (PCT)
Prior art keywords
swivel
rotator
tube
block
external
Prior art date
Application number
PCT/SE2014/000037
Other languages
English (en)
Inventor
Joakim Harr
Original Assignee
Indexator Group Ab
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 Indexator Group Ab filed Critical Indexator Group Ab
Publication of WO2014168541A1 publication Critical patent/WO2014168541A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation

Definitions

  • the present invention relates to a swivel device at a rotator according to the preamble of claim 1.
  • An object of the present invention is to provide an
  • the swivel device according to the invention is easy to maintain or change since it can be dismounted in direction upwardly out from the crane side of the rotator, without any other part of the rotator has to be dismounted.
  • This serviceability is extraordinarily advantageous, for instance, at service in the field.
  • the invention shows both technical and economical advantages .
  • Figure 1 shows a rotator provided with a swivel in a
  • Figure 2 shows the rotator provided with a swivel according to figure 1 in a vertical section.
  • the rotator 10 shown in the figures comprises a stator 20 and a rotor 30.
  • the rotor 30 rotates around an axis of rotation A.
  • the stator 20 comprises an upper stator part 20a which at use of the rotator 10 normally is connected to a working arm (not shown) or other suitable carrier means .
  • the rotor 30 is cylindrical to its construction and is
  • the rotor 30 has a protruding lower part 30a which normally is connected to a working tool or another implement which is to be used at a working occasion.
  • the rotator 10 here shown is a so called wing rotator, which involves that a number of wings are arranged around the circumference of the rotor for cooperation with an adapted inner shape of the stator, wherein a liquid pressure medium, for instance, hydraulic oil, is used to perform desired rotation of the rotor in desired direction of rotation.
  • a liquid pressure medium for instance, hydraulic oil
  • the rotator 10 shown comprises furthermore a swivel device 50 which comprises a swivel block 60, an external swivel tube 70 and an internal swivel tube 80.
  • a swivel device 50 which comprises a swivel block 60, an external swivel tube 70 and an internal swivel tube 80.
  • the rotor 30 has a through-going center hole 31 which shows different diameter steps 31a-d.
  • the hole step 31d carries the external swivel tube 70, the upper end of which inserts into a cavity in the lower portion of the swivel block 60, as shown in Fig. 2.
  • the hole steps 31b and 31c carry the internal swivel tube 80, the upper end of which inserts into a cavity in the lower portion of the swivel block 60, as is shown in Fig. 2.
  • a first communication duct 61 for a liquid medium, for instance, hydraulic oil, is arranged in the swivel block 60, whereby the duct 61 communicates with a center hole 81 of the internal swivel tube 80 so that the liquid medium, through the hole 31, can be forwarded to a tool or implement.
  • a communication duct 21, which communicates with the duct 61, is arranged in the upper stator part 20a for taking care of the communication of the pressure medium to the swivel device 50.
  • a second communication duct 62 for a liquid medium, for instance, hydraulic oil, is arranged in the swivel block 60, whereby the duct 62 communicates with a ring groove 65 which in its turn communicates with a slot 100 between the external diameter of the internal swivel tube 80 and the internal diameter of the external swivel tube 70.
  • the slot 100 is arranged in the swivel block 60, whereby the duct 62 communicates with a ring groove 65 which in its turn communicates with a slot 100 between the external diameter of the internal swivel tube 80 and the internal diameter of the external swivel tube 70.
  • a communication duct 22 which communicates with the duct 62, is arranged in the upper stator part 20a to take care of the communication of the pressure medium to the swivel device 50.
  • the swivel device according to the invention thus makes possible a two-duct conveying of the pressure medium from a fixedly arranged pressure source to a tool or implement which is carried by the rotor of the rotator.
  • the swivel block 60 shows at its upper end a flange portion 66 which is arranged for allowing the swivel block 60 to be fixed by screws at the upper stator part 20a, as shown in the figures .
  • a flange portion 66 which is arranged for allowing the swivel block 60 to be fixed by screws at the upper stator part 20a, as shown in the figures .
  • the flange portion 66 with such a thickness of material and external diameter that the ducts 21 and 22 in the upper stator part 20a can be replaced by extended ducts 61 and 62 so as to take care of the necessary fluid communication.
  • the external swivel tube 70 may, if one so wish, be integrated with the rotor 30.
  • the internal swivel tube shall be stationary or follow with the rotation of the rotor by, for instance, selection of fits and sealings.
  • Fig. 1 illustrates how the swivel device 50 may be easily dismounted in that the swivel block 60 is loosened from its attachment relatively to the upper stator part 20a, whereupon the swivel block 60, the external swivel tube 70 and the internal swivel tube 80 can be picked up from the rotator through an opening in the upper stator part 20a. In this way it should be realized that steps regarding service and exchange of components are very easy to perform.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

L'invention concerne un dispositif (50) de pivot au niveau d'un rotateur (10), comportant une partie (20) de stator et une partie (30) de rotor. Le dispositif (50) de pivot comporte un bloc (60) de pivot, un tube externe (70) de pivot et un tube interne (80) de pivot. Le montage et le démontage desdits composants (60, 70, 80) de pivot s'effectuent à travers une ouverture dans une partie supérieure (20a) de stator.
PCT/SE2014/000037 2013-04-10 2014-04-04 Dispositif de pivot au niveau d'un rotateur WO2014168541A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1350450-1 2013-04-10
SE1350450A SE539110C2 (sv) 2013-04-10 2013-04-10 Svivelanordning vid en rotator

Publications (1)

Publication Number Publication Date
WO2014168541A1 true WO2014168541A1 (fr) 2014-10-16

Family

ID=51689830

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2014/000037 WO2014168541A1 (fr) 2013-04-10 2014-04-04 Dispositif de pivot au niveau d'un rotateur

Country Status (2)

Country Link
SE (1) SE539110C2 (fr)
WO (1) WO2014168541A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660816A (en) * 1949-02-17 1953-12-01 Willard A Maxwell Combination bulldozer and shovel arrangement
US3966249A (en) * 1974-06-06 1976-06-29 Hiab-Foco Aktiebolag Rotator
US4542929A (en) * 1983-09-01 1985-09-24 Possinger Warren K Articulating clam type grapple for a backhoe
WO1996026326A1 (fr) * 1995-02-18 1996-08-29 Heinz Thumm Oelhydraulische Antriebe Gmbh Mecanisme vireur pour benne preneuse
WO2003082725A1 (fr) * 2002-04-02 2003-10-09 Indexator Ab Systeme d'un rotateur
EP2246286A1 (fr) * 2009-04-30 2010-11-03 Heinz Thumm Dispositif de rotation pour moyen de réception de charge, comme le dispositif de préhension d'un excavateur ou analogue

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660816A (en) * 1949-02-17 1953-12-01 Willard A Maxwell Combination bulldozer and shovel arrangement
US3966249A (en) * 1974-06-06 1976-06-29 Hiab-Foco Aktiebolag Rotator
US4542929A (en) * 1983-09-01 1985-09-24 Possinger Warren K Articulating clam type grapple for a backhoe
WO1996026326A1 (fr) * 1995-02-18 1996-08-29 Heinz Thumm Oelhydraulische Antriebe Gmbh Mecanisme vireur pour benne preneuse
WO2003082725A1 (fr) * 2002-04-02 2003-10-09 Indexator Ab Systeme d'un rotateur
EP2246286A1 (fr) * 2009-04-30 2010-11-03 Heinz Thumm Dispositif de rotation pour moyen de réception de charge, comme le dispositif de préhension d'un excavateur ou analogue

Also Published As

Publication number Publication date
SE539110C2 (sv) 2017-04-11
SE1350450A1 (sv) 2014-10-11

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