US 11,867,349 B2
Self-balancing two-rotation driving mechanism
Pham Tuan Nguyen, Ha Noi (VN); Kim Bao Le, Vinh Phuc Province (VN); Van Dinh Pham, Ha Noi (VN); Anh Tuan Cao, Ha Noi (VN); Quoc Toan Tran, Lai Chau Province (VN); and Duy Tung Nguyen, Ha Noi (VN)
Assigned to VIETTEL GROUP, Ha Noi (VN)
Filed by VIETTEL GROUP, Ha Noi (VN)
Filed on Aug. 5, 2022, as Appl. No. 17/882,364.
Claims priority of application No. 1-2021-05941 (VN), filed on Sep. 23, 2021.
Prior Publication US 2023/0085799 A1, Mar. 23, 2023
Int. Cl. F16M 11/12 (2006.01); F16M 11/18 (2006.01); F16M 11/22 (2006.01); B64C 39/02 (2023.01)
CPC F16M 11/126 (2013.01) [F16M 11/18 (2013.01); F16M 11/22 (2013.01); B64C 39/024 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A self-balancing two-rotation driving mechanism combining longitudinal and lateral rotation which can control each rotation independently, comprising;
a longitudinal rotation motor for driving longitudinal rotation, said longitudinal rotation motor is fixed in a hub of a base frame and motor torque is transferred through a parallelogram to a longitudinal rotation frame;
the base frame has walls and plural hubs are provided on the walls of the base frame assemble the longitudinal rotation motor, a first longitudinal rotation shaft, and a second longitudinal rotation shaft which are concentric;
the longitudinal rotation frame is hung on the first and second longitudinal rotation shafts with a couple of bearings and connects with an upper twin connecting rod by bolts;
a longitudinal rotation angle sensor is connected directly with the longitudinal rotation frame;
a longitudinal rotation limitation pin is fixed in a wall of the base frame and goes in groove on the longitudinal rotation frame in order to set a rotation limitation of the longitudinal rotation frame;
the first and second longitudinal rotation shafts are designed with multi sections in order to push into the hubs on the wall of the base frame and be tightened by bolts from outside;
the longitudinal rotation motor generates torque and transfers to a lower twin connecting rod, then to two of single connecting rod; both of the single connecting rods drive upper twin connecting rod; these connecting rods work as parallelogram to increase the stability when transferring torque from said longitudinal rotation motor to the longitudinal rotation frame;
the lower twin connecting rod comprises a hub in a middle to fix with an output ring of longitudinal rotation motor and be tightened by first and second bolts.