The invention discloses a lubricating device for lubricating one or more parts. The device includes a housing which includes a housing inner cavity for containing lubricating fluid, a liquid collecting structure can be positioned on the inside of the housing and is provided with a lip edge and a liquid storage device, the lip edge at least partially extends above the liquid level of the storage tank of the lubricating fluid in the housing inner cavity into the housing inner cavity. A first lubricating channel extends into the housing from the liquid collecting structure. The lip edge and the liquid storage device of the liquid collecting structure can collect the lubricating fluid splashed above the liquid level of the storage tank of the lubricating fluid. The first lubricating channel can guide the lubricating fluid from the liquid collecting structure to one or more parts.