Abstract: The invention relates to a rotator (100) for a tool, such as a as a jib-carried tool. The rotator (100) comprises: a stator (102); a rotor (104) rotatably arranged inside the stator (102); a bearing (112) configured to carry an external load (L); a lower link (150) for attaching a tool (200) to the rotator (100); and a load cell (180) arranged between the bearing (112) and the lower link (150), wherein the load cell (180) is configured to indicate the external load (L). Thereby, a rotator (100) compact in its axial extension can be provided.

Abstract: The invention relates to a rotator (100) for a tool (200). The rotator (100) comprises a stator (102) and a rotor (104) rotatably arranged inside the stator (102). The rotor (104) comprises a radial bearing (122) having a first axial extension (a1) in the rotator (100). The rotator (100) comprises a separate bearing (112) arranged radially outside the rotor (104). The separate bearing (112) is configured to carry an external load of the rotator (100). The rotator (100) further comprises an electrical swivel (108) and/or an angle meter (116) arranged inside the rotor (102), and the electrical swivel (108) and/or the angle meter (116) at least partially extends axially in the first axial extension (a1) in the rotator (100). Thereby, a compact rotator design is provided.

Abstract: The invention relates to an arrangement (600) for controlling a rotator, the arrangement (600) comprising a control device (100); a rotator (200) for a jib-carried tool (300); and one or more image sensing devices (700); wherein the control device (100) is configured to obtain one or more signals (702) from the one or more image sensing devices (700), obtain a location of a target object (500) based on the one or more signals (702), and control the rotator (200) based on the location of the target object (500). Furthermore, the invention also relates to a corresponding method, a vehicle comprising such an arrangement and a computer program.

Abstract: The invention relates to a hydraulic rotator (11) for rotating a tool with respect to a crane arm, the hydraulic rotator comprising a first attachment piece (12) for connection to a crane arm and a second attachment piece (13) for connection to a tool; and a stator (14) and a rotor (15), the rotor (15) being rotatably arranged inside the stator (14) to rotate around an axial axis (A), wherein the rotor (15) comprises vanes (18) that are biased to extend radially outwards from said rotor (15), and wherein the stator (14) comprises an inner circumferential surface (25) to receive said vanes (18), which inner circumferential surface (25) comprises at least two chambers (19a) arranged to receive each vane of said vanes (18) to a first extent, and at least two shallow portions (19b) arranged to receive each vane of said vanes (18) to a second extent, which is substantially less compared to said first extent, wherein said inner circumferential surface (25) is arranged to receive at least a tip portion of the vanes

Abstract: The invention relates to a hydraulic rotator (11) for rotating a tool with respect to a crane arm, the hydraulic rotator comprising a first attachment piece (12) for connection to a crane arm and a second attachment piece (13) for connection to a tool; and a stator (14) and a rotor (15), the rotor (15) being rotatably arranged inside the stator (14) to rotate around an axial axis (A), wherein the rotor (15) comprises vanes (18) that are biased to extend radially outwards from said rotor (15), and wherein the stator (14) comprises an inner circumferential surface (25) to receive said vanes (18), which inner circumferential surface (25) comprises at least two chambers (19a) arranged to receive each vane of said vanes (18) to a first extent, and at least two shallow portions (19b) arranged to receive each vane of said vanes (18) to a second extent, which is substantially less compared to said first extent, wherein said inner circumferential surface (25) is arranged to receive at least a tip portion of the vanes

Abstract: A rotator arrangement (10) comprising a motor (11) with a stator (13) and a rotor (12) arranged inside the stator (13) to rotate with respect to said stator (13) around an axial axis (A). The rotator arrangement (10) comprises a rotor attachment piece (15) connected to the rotor and a stator attachment piece (16) connected to the stator, wherein one of the rotor attachment piece (15) and stator attachment piece (16) is arranged to be attached to a crane arm or the like, and the other is arranged to be attached to a tool implement. An angle meter (17) is arranged to continuously monitor the rotation of the rotor (12) with respect to the stator (13), wherein the angle meter (17) comprises a stator part (18) that is arranged to rotate with the stator (13) a rotor part (19) that is arranged to rotate with the rotor (14), and wherein the angle meter (17) is arranged along the axial axis (A).

Abstract: A rotator arrangement for providing a rotating movement between a crane arm or the like and a hydraulic tool, the rotator arrangement comprising: a first attachment piece arranged to be attached to the crane arm or the like, a second attachment piece arranged to be attached to the tool implement, a casing joining the first attachment piece to the second attachment piece, which casing is arranged to carry the loads of the hydraulic tool and includes a bearing or the like allowing a first part of the casing to rotate with respect to a second part of the casing, and a hydraulic rotation motor arranged to provide a rotational movement between the first and second attachment pieces around an axis of rotation, the motor comprising a stator and a rotor, the rotor being arranged inside the stator so as to rotate with respect to the stator around the same axis of rotation as the first and second attachment pieces.

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).

Abstract: The present invention relates to a swivel device (10) for connection of two conduits or hoses which are rotatable in relation to each other, wherein the device (10) comprises a first centre part (20) provided with a hole, which first centre part (20) has a first fastening portion (22) for attachment of a first conduit, and a second centre part (30) provided with a hole, which second centre part (30) has a second fastening portion (32) for attachment of a second conduit, wherein the first centre part (20) and the second centre part (30) are rotatable in relation to each other, wherein: the centre parts (20, 30) are mutually held together by means of an outer sleeve (150) which in one of its ends is anchored to the second centre part (30) and which in its other end is rotationally slidably arranged in relation to the first centre part (20), a tube part (40) is arranged inside the swivel device (10) in order to cover a gap (50) between the first centre part (20) and the second centre part (30), a first axial sli