Transmission box with double-drive function
A transmission box and functional technology, applied in the direction of transmission devices, gear transmission devices, motor vehicles, etc., can solve the problems of lack of interface modules, low reliability of drive devices, and inability to adapt to high reliability and multiple drive methods, so as to improve reliability , Guarantee the effect of realization
Active Publication Date: 2020-02-11
SHANGHAI AEROSPACE SYST ENG INST
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Problems solved by technology
[0003] At present, the drive and transmission equipment of space vehicles widely used, such as the solar wing on-orbit sun orientation mechanism, the antenna rotation drive device, etc., are all electric drive equipment. If the electric drive function fails, the entire aircraft will not be able to operate effectively in orbit. And there is no interface module for astronauts to manually drive on-orbit, the reliability of the drive device is low, and it cannot meet the needs of high-reliability and multi-drive methods on-orbit
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[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0019] figure 1 It is a schematic cross-sectional structure diagram of the transmission box with double drive function of the present invention. As shown in the figure, a transmission box with double drive function includes a motor 1, a first key 2, a first bearing group 3, a second key 4, a second bearing group 5, a small bevel gear 6, a third key 7, First housing 8 , planetary reducer 9 , third bearing 10 , second housing 11 , large bevel gear 12 , bottom plate 13 , fourth bearing group 14 , transmission gear 15 . The motor 1 is installed on the first housing 8 , the output end of the motor 1 is connected with the sun gear of the planetary reducer 9 through the first key 2 , and is installed on the first housing 8 through the first bearing group 3 . The outer ring gear of the planetary reducer 9 is fixed at the connection between the first housing 8 and t...
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The invention relates to a transmission box with double-drive function. The transmission box comprises a motor and the like. The motor is installed on a first shell, the output end of the motor is connected with a sun gear of a planetary reducer through a first key and is installed on the first shell through a first bearing group. The outer ring gear of the planetary reducer is fixed at the jointof the first shell and the second shell, the planet carrier of the planetary reducer is installed at the inner cavity of the second shell through a bearing B, and the planet carrier is connected witha large bevel gear through a second key. The large bevel gear is fixed on the bottom plate through a bearing group C, and the tail end of the large bevel gear is connected with the transmission gear through a third key. A small bevel gear is installed on the second shell through a fourth bearing group, the bevel gear end of the small bevel gear meshes with the large bevel gear, and the tail end ofthe small bevel gear extends out of the second shell. The transmission box improves the reliability of the transmission function of the large-scale extension mechanism on track.
Description
technical field [0001] The invention relates to the field of drive transmission of spacecraft mechanisms, in particular to a transmission box with both electric drive and hand drive functions, which is suitable for spacecraft accessories that can be manually operated and driven by astronauts on orbit. Background technique [0002] With the development of large-scale spacecraft missions in China, large-area solar wings are adopted to meet the high-power requirements of large-scale spacecraft in orbit. The large-scale expansion mechanism is one of the core components of the large-area solar wing of a large spacecraft, which realizes repeated deployment, support and precise positioning of the solar wing in orbit. In order to meet the requirements of long-term on-orbit operation of large spacecraft and multiple on-orbit deployment and retraction of the solar wing, the transmission function of the large-scale extension mechanism needs to have high functional reliability, and the ...
Claims
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Login to View More IPC IPC(8): F16H3/72B64G1/22B64G1/44
CPCB64G1/222B64G1/443F16H3/724
Inventor 崔琦峰彭志龙罗海军郑宗勇
Owner SHANGHAI AEROSPACE SYST ENG INST