| 摘要 |
The invention relates to an electro-hydraulic compact drive for underwater use and for driving an output element, for example a propeller (40), a wheel, or a cable winch. For this purpose, the compact unit comprises a hydraulic motor (31), which has an output shaft (37), a hydraulic pump (30), by means of which the hydraulic motor can be supplied with a hydraulic fluid via a working line (32), and an electric motor (50), by means of which the hydraulic pump can be driven, as components. The aim of the invention is to design such an electro-hydraulic drive so as to be particularly suitable for underwater use. This is achieved by an electro-hydraulic compact drive in which the components are located in a closed container (12) filled with a hydraulic fluid, and the container has an opening for coupling the output shaft of the hydraulic motor to the output element. According to the invention, the electro-hydraulic compact drive thus forms a closed unit which contains the complete electric motor/hydraulic pump/hydraulic motor arrangement. The compact drive combines the advantages of the high power density of hydraulics with a decentralized electric direct drive. A high degree of reliability, safety, and energy efficiency are achieved. The handling of the drive is simplified, thus also simplifying the control of underwater vehicles and machines. |
