Rotator which limits rotor rotation

Details Rotator which limits rotor rotation Rotator which limits rotor rotation

B - Operations, Transporting

66

C

B66C 13/46 (2006.01) A01G 23/00 (2006.01) B66C 13/08 (2006.01) E02F 3/36 (2006.01) E02F 9/22 (2006.01) G05D 3/18 (2006.01)

Patent

CA 2472819

The invention relates to a rotator (10) for jib-carried tools (1), for example tree working units, wherein the rotator (10) includes a stator (20) and a rotor (30), wherein the rotator (10) is connected to a tip (2) of the jib or arm (3) and to the tool (1). The rotator (10) has or includes in its surroundings means (70, 71) for determining the relative position of rotation between rotor (30) and stator (20). The means for determining the relative position of rotation comprises a pulse emitter (70) and a number of pulse generating elements (71), such as grooves or teeth. Limitation of the angle through which the rotator (10) can turn and control of the direction of rotation prevents, for instance, hoses and/or cables (7) from twisting or rotating away from their respective connections, while enhancing the extent to which automation can be achieved at the same time.

L'invention concerne un dispositif de rotation (10) con×u pour des outils (1) port~s par une fl­che, par exemple, des unit~s d'exploitation foresti­re. Ce dispositif de rotation (10) comprend un stator (11) et un rotor (30) et est reli~ ~ l'extr~mit~ (2) de la fl­che (3) et ~ l'outil (1). Ce dispositif de rotation (10) poss­de des moyens (70, 71) servant ~ d~terminer la position relative de rotation entre rotor (30) et stator (20). Ces moyens de d~termination de la position relative de rotation sont compos~s d'un ~metteur d'impulsions (70) et de plusieurs ~l~ments (71) g~n~rant des impulsions, tels que des rainures ou des dents. La limite de l'angle de rotation de ce dispositif (10) et le contrÙle de son sens de rotation, permettent d'empÚcher, par exemple, la torsion des tuyaux et/ou des c~bles (7) ou leur d~branchement par rotation de leurs raccords respectifs, tout en augmentant simultan~ment l'~tendue des possibilit~s d'automatisation.

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