Abstract: A hydraulic apparatus is disclosed, which includes a hydraulic cylinder body, a piston, a push assembly, and a first sealing component; the hydraulic cylinder body is of a hollow cylinder shape, provided with a first opening and a second opening respectively at two ends; the piston is disposed in the hydraulic cylinder body and is located at the first opening; the first sealing component covers the second opening; the hydraulic cylinder body, the piston, and the first sealing component are configured to form a hydraulic chamber; the hydraulic cylinder body is provided with a liquid flow opening which is located between the first sealing component and the piston; and the piston is configured to be enabled to move in the hydraulic cylinder body, driven by the push assembly.

Abstract: A drive apparatus includes a first variable speed drive mechanism, a second variable speed drive mechanism, a first output half shaft, and a second output half shaft. The first variable speed drive mechanism includes a first reduction gear, a first planetary gear system, and a first brake mechanism. The second variable speed drive mechanism includes a second reduction gear, a second planetary gear system, and a second brake mechanism. The first planetary gear system includes a first sun gear, a first gear ring, a first planetary gear, and a first planet carrier. The first reduction gear is engaged with the first sun gear.