INSTRUMENT HEAD OF DEVICE FOR AERODYNAMIC TESTS OF MODELS OF COAXIAL CONTRA-ROTATING PROPELLERS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to experimental aerodynamics, mainly to u0438u0441u043fu044bu0442u0430u043du0438u00a0u043c in aerodynamic pipes with u043eu0441u043du044bu0445 aircraft propellers. the purpose of the experimental opportunities for improving the frequency spectrum u0432u0440u0430u0449u0435u043du0438u00a0 and enhancing the security in case of an emergency u0440u0430u0437u0440u0443u0448u0435u043du0438u00a0 screws models.u0438u0437u043cu0435u0440u0438u0442u0435u043bu044cu043du0430u00a0 head device u0434u043bu00a0 aerodynamic test models u0441u043eu043eu0441u043du044bu0445 air screws contains a rear propeller shaft 1 model 2 and wall 3 in the front inta model 4, respectively, by two - and u0442u0440u0435u0445u043eu043fu043eu0440u043du044bu043cu0438 and containing in a reinforced part of the two u043eu0441u0435u0441u0438u043cu043cu0435u0442 - u0440u0438u0447u043du044bu0445 longitudinal groove, in which introduced ra u0434u0438u0430u043bu044cu043du044bu0435 ball bearings 5, 8 fingers 9 - 12entrenched in the cartridge 13. inspired by the u0448u0435u0441u0442u0435u0440u043du0438 bearing 14, 15, 16. the casings 13, 14 comprise shafts with u0433u0430u0440u0430u043d - u0442u0438u0440u043eu0432u0430u043du043du044bu043c as closely as possible and set the u0446u0435u043du0442u0440u0438u0447u043du043e u0432u0430u043bu0430u043c through radial u0448u0430u0440u0438u043au043eu043fu043eu0434u0448u0438u043fu043du0438u043au043eu0432 17, 18 and 19, 20 in the tube u043au0430u0447u0430u043bu043a oh 21,22.the axis of rotation are in the form of gyms on 23, 24 and 25, 26 provided in the plane of the fingers casings and imposed radial ball bearings 27 and 28 incorporated in to u0440u043fu0443u0441u0435 measuring head 29, and the ball bearings 30 and 31, as enshrined in the u0441u0442u0443u043fu0438u0446u0430u0445 leading u0448u0435u0441u0442u0435u0440u0435u043d 32 and 33, turn him u0442u0435u043du0437u043eu0434u0438u043du0430u043cu043eu043cu0435u0442u0440u0430u043cu0438 gyms, 34, 35, u0441u0432u00a0u0437u044bu0432 u0430u044eu0449u0438u043cu0438 rocking with the measuring head. 2).eat with