Abstract

The invention relates to a method and an arrangement related to a rotator, especially for a work tool supported by an arm, whereby the rotator (10) comprises a stator (20) and a rotor (30). A fastening ring (50) for the attaching of a work tool is separately journalled (D) relative to the stator (20) independently of a bearing (B, C) between the stator (20) and the rotor (30). A driver (80; 180; 280) is used to transfer the rotational movement of the rotor (30) to the fastening ring (50).

IPC Classes  ?

• B66C 13/08 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for depositing loads in desired attitudes or positions
• E02F 3/36 - Component parts

Abstract

The invention relates to a method and a device related to a working arm (2), especially to a working arm in a digging machine, forest machine, woodworking machine or the like, in whose free end a manoeuvring device (15) is carried, whereby the manoeuvring device (15) comprises a rotation device (20) in order to exert a movement of rotation on a working tool (5). An electrical swivel (60) is used for bringing about an electrical communication and/or signal communication past the rotation device (20).

IPC Classes  ?

• B66C 13/14 - Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts or devices to load-engaging elements or motors associated therewith
• E02F 3/36 - Component parts

Abstract

The invention relates to a device for guiding hoses and/or cables running from a crane jib via its nose portion, wherein a first/upper swing joint (50) is arranged between the crane nose (11) and a link device (40) and a second/lower swing joint (80) is arranged between the link device (40) and an accessory/tool in the form of, e.g. a rotator (75). The upper swing joint (50) includes a means (20) for the guiding of the hoses (91-94) and/or cables.

IPC Classes  ?

• B66C 13/14 - Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts or devices to load-engaging elements or motors associated therewith
• E02F 3/413 - DippersBuckets with grabbing device

Abstract

The invention relates to a swivel device, in particular designed to connect two pipes or hoses rotating relative to one another, wherein the device (10) includes a first centre part (20) provided with a hole and comprising a fastening portion (22) for the attachment of a first pipe, the device (10) includes a second centre part (30) provided with a hole and comprising a fastening portion (32) for the attachment of a second pipe, the first centre part (20) and the second centre part (30) being rotatable relative to one another. The centre parts (20, 30) are held together by means of an outer sleeve (150) anchored at one end to the second centre part (30) and at its other end arranged in a rotationally slidable manner relative to the first centre part (20). A first axial sliding bearing (140) is arranged between the outer sleeve (150) and the first centre part (20) and a second axial sliding bearing (190) is arranged between the first centre part (20) and the second centre part (30). The first centre part (20) is axially displaceable between a first position in which the first axial sliding bearing (140) is operative and a second position in which the second axial sliding bearing (190) is operative.

IPC Classes  ?

• F16L 27/08 - Adjustable jointsJoints allowing movement allowing adjustment or movement only about the axis of one pipe

Abstract

Austempered ductile iron (ADI) for components requiring high strength and/or ductility, which has a silicon content of 3.35 weight-% to 4.60 weight-%, and which is obtainable by performing an ADI-heat treatment using an austenitization temperature of at least 910° C.

IPC Classes  ?

• C21D 5/00 - Heat treatment of cast-iron