| 摘要 |
<p>A transformer unit, particularly for sawing, wherein the transformer unit (M) comprises a first machine element (1), particularly a shaft, for performing a continuous rotational movement, and a second machine element (2) for performing a limited alternating rotational motion on a part of the transformer unit. The transformer unit (M) is arranged to be coupled to an arrangement to supply driving energy for the transformer unit (M). The first and the second machine element (1, 2) are preferably coupled to a device performing the same work and being arranged to perform first and second partial work performances during the sawing performance. The first machine element (1) is arranged to rotate a chain saw for performing the first partial work performance, and the second machine element (2) is arranged to feed a guide bar of the chain saw for performing the second partial work performance. The second machine element (2) is a wing torsion device operated by pressurized medium and comprises partial volumes (3a-3d) for pressurized medium. At least one of the volumes (3c) is arranged to operate during the volume change of said volume (3c), preferably as a source of energy for a supplementary work performance related to work performed by the transformer unit (M), particularly for performing the transfer of a medium, such as the lubrication of the saw chain and/or the injection of a tree stump treatment agent.</p> |
