Tracking device comprising a receiving structure which can be adjusted about at least one axis, for mounting at least one element that is sensitive to electromagnetic waves and has a preferential radiation direction

A tracking device (1;

• 101) comprising at least one receiving structure (12) which can be adjusted about at least one axis, for mounting at least one element that is sensitive to optical or other electromagnetic waves and has a preferential optical or radiation direction, such as a solar panel (2), solar reflector, telescope or the like, and comprising at least one rotational drive per axis for the purpose of actively rotationally adjusting the receiving structure (12) in order for the element(s) mounted thereon to track a celestial body, particularly the sun, on one or more axes according to a predetermined algorithm with the aid of a control system, wherein (each of) the rotational drive(s) is configured as open-center and comprises a respective two mutually concentric, annular connection elements (19, 21;
• 131, 132) that are mounted one against the other and are or can be coupled to at least one motor (15;
• 155) for mutual relative adjustment, wherein a first connection element (19, 21;
• 131, 132) comprises at least one planar connection surface for stationary fixing to a foundation, base, upright or a connection element of another slewing unit, and wherein a second connection element (19, 21;
• 131, 132) comprises at least one planar connection surface (133, 134) for rotationally fixed coupling to the receiving structure (12) or to a connection element of another slewing unit, wherein, further, provided between the mutually concentric, annular connection elements (19, 21;
• 131, 132) of a slewing unit is at least one row of rolling elements (139) that roll along raceways (140, 141) on the first and second connection elements (19, 21;
• 131, 132), characterized in that
• a) provided on one connection element (19, 21;
• 131, 132) is an at least partially circumferential toothing (142) that is formed, together with the raceway(s) (140) there, by machining or shaping a shared annular base body, wherein
• b) provided on the other connection element (19, 21;
• 131, 132) are coronally distributed bores (160) that serve to effect attachment to a system part and that are formed, together with the raceway(s) (141) there, by machining or shaping a shared annular base body.