| 摘要 |
The invention relates to a hydraulic drive for lifts, wherein a piston rod (1) which protrudes on both sides (1) is mounted in a fixed manner and a cylinder (2) is mounted in a displaceable manner. Preferably, all of the devices, such as, a hydraulic unit (50), deviation rollers (45+46) and compensation and counter weights (9) are fixed directly onto the cylinder by means of receiving devices (7+8). As a result, a force-controlled system having a minimal oil reservoir and optimal thermal properties is produced, wherein all of the components work together in an advantageous manner, is very easy to install and a guiding element for the counter weight is no longer required. |
