| 摘要 |
<p>An azimuth drive unit (50) for a solar power system has a multistage sprocket configuration (60). The drive unit (50) includes an input shaft (56) for receiving an input torque, where the multistage sprocket configuration (60) is coupled to the input shaft (56). The sprocket configuration (60) converts the input torque into an output torque, and an output shaft (54) is coupled to the sprocket configuration (60) for applying the output torque to a solar reflector. In a highly preferred embodiment, the sprocket configuration (60) includes a tensioning system contacting one or more of the chains and a housing of the drive unit. The tensioning system applies a tension force to the contacted chains such that backlash in the sprocket configuration (60) is reduced.</p> |
