Drive

A drive for reaching a desired position of a component comprising a rotor blade, a crane tower, or a superstructure, the drive comprising:

• two mutually meshing drive elements comprising a first drive element and a second drive element, wherein the first drive element and/or the second drive element is drivable from a drive source via a transmission on a drive source side of the two mutually meshing drive elements, and wherein the second drive element is connectable to the component;
• and
• a lubrication apparatus, wherein the first drive element and/or the second drive element have lubricant passages for supplying a lubricant to a meshing tooth pair,
• wherein the lubrication apparatus has a distributor having a supply passage connectable to the lubricant passages, wherein the first drive element and/or the second drive element is movable relative to the distributor such that the lubricant passages are connected to the supply passage or are disconnected from the supply passage according to the position of the first drive element and/or the second drive element relative to the distributor,
• wherein the lubricant passages are spaced apart from one another such that a first lubricant passage of the lubricant passages is selectively connectable to the supply passage and a second lubricant passage of the lubricant passages is selectively disconnectable from the supply passage by a movement of the first drive element and/or the second drive element relative to the distributor,
• wherein a contour of an opening of the supply passage and a respective position and contour of the lubricant passages are coordinated with one another such that, on the movement of the first drive element and/or the second drive element relative to the distributor, at least one of the lubricant passages is always connected to the supply passage and at most two of the lubricant passages are always simultaneously connected to the supply passage,
• wherein the distributor is suppliable with the lubricant from a side of the two mutually meshing drive elements opposite the drive source side via a lubricant cap, wherein the lubricant cap at least partly surrounds one or more of the lubricant passages, wherein the lubricant cap is rotationally fixed, and wherein the distributor is rotationally fixedly supported by the lubricant cap,
• wherein the lubricant cap surrounds the first drive element at an axial side and at an outer peripheral side and extends from a drive element side opposite the drive source side to a transmission housing positioned at the drive source side,
• wherein the lubricant cap is sealingly attached to the transmission housing,
• wherein the lubricant cap envelopes a section of the second drive element meshing with the first drive element, and
• wherein the lubricant cap is sealed with respect to the section of the second drive element meshing with the first drive element by a seal between the lubricant cap and the second drive element.