| 摘要 |
<p>For winding or unwinding of the pulling rope (970) with a winch (99) there is a winding drum (4) provided which is freely rotating applied to axis (3) embedded within the enclosure. The drum is shiftable along the axis (3) by way of hydraulic cylinder (552) and a piston (553) inside of it being integral parts of the hydraulic circuit of the hydraulic generator (50). This hydraulic generator (5) including a reservoir (510) for the hydraulic media, a piston pump (500) for pressuring or suction of the pressure media, a pressure accumulator (520) and required control elements feature technologically not very demanding parts, small size and high hydraulic efficiency rate as well as small quantity of hydraulic media, required for a smooth operation of the winch (99). This way the installation of the hydraulic generator (5) directly into the winch (99) enclosure (97) is enabled, while at the same time among other problems the problem linked to overheating and decomposition of the hydraulic media is avoided thanks to the small quantity of the hydraulic media but also hazards to the environment in the case of defects or damages to the winch (99).</p> |
