| 摘要 |
1,093,946. Space vehicles. MINISTER OF AVIATION. Dec. 23, 1964 [Dec. 23, 1963], No. 50749/63. Heading B7W. [Also in Division F2] A connection permitting angular motion of a solar paddle SP carrying solar cells relative to an arm A, comprises a bent shaft S having ends SI, SO mounted in bearings BI, BO in housings HI, HO fixed in arm A and paddle SP, respectively. A stainless steel bellows T is fixed and hermetically sealed to the housings HI, HO. An electric motor M drives the shaft through gearing G to rotate housing HO and hence the paddle SP about the axis of bearing BI and arm A, the bellows also causing the housing HO and paddle SP to rotate relative to the shaft end SO. A satellite for an equatorial orbit comprises a body B whose axis coincides with roll axis R-R which is always tangential to the orbit, the yaw axis passing through the earth's centre; pitch, rolls and yaw jets from nozzles at the end of rigid stems PRJ and YJ maintain the satellite's attitude. The bellows may comprise short connected lengths with bearing members of low friction material, e.g. nylon, adjacent the rigid shaft, Fig. 3, not shown. Both ends of the shaft may be driven. An electrical lead L passes through the bent shaft and slip-rings are unnecessary.
|
