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US 6,484,608 B1Granted
Method and apparatus for providing two axis motion with a single drive device
AssigneeHughes Electronics Corporation
InventorJohn Ziavras
Life of this patent
Estimating the term…
Abstract
There is disclosed a two-axis positioning mechanism including a single motor to control the position of two orthogonal axes. The motor is in communication with a first drive system to control the position of one axis and a second drive system to control the position of the other of the two axes. Also provided is a mechanically redundant positioning mechanism in which either of two motors may perform the two-axis positioning function.
Claims20
A single drive gimbal geartrain comprising:
- a motor having a drive shaft extending therefrom;
- a pinion in communication with said drive shaft for rotation thereof;
- a first drive in communication with said pinion, said first drive comprising a first gear, a first worm shaft in communication with said first gear at a first end of said first worm shaft, said first worm shaft in communication with a first worm wheel to drive a first output cam and deploy a first axis;
- and
- a second drive in communication with said pinion, said second drive comprising a second gear, a second worm shaft in communication with said second gear at a first end of said second worm shaft, said second worm shaft in communication with a second worm wheel to drive a second output cam and deploy a second axis.
2 more elements
A two-axis positioning mechanism, comprising:
- a primary motor having a drive shaft extending therefrom;
- a first drive in communication with said primary motor, said first drive including a first drive gear in mechanical communication with said drive shaft and a first worm shaft having one end in communication with said first drive gear;
- a first worm wheel in communication with said first worm shaft;
- a first output cam in communication with said first worm wheel to drive a first axis;
- a second drive in communication with said primary motor, said second drive including a second drive gear in mechanical communication with said drive shaft and a second worm shaft having one end in communication with said second drive gear;
- a second worm wheel in communication with said second worm shaft;
- and
- a second output cam in communication with said second worm wheel to drive a second axis.
5 more elements
A single drive gimbal geartrain for a two-axis positioning mechanism comprising:
- a motor having a drive shaft that is rotatable in two directions;
- a first drive in rotational communication with said drive shaft, said first drive comprising a first drive gear, a first worm shaft in communication with said first drive gear at a first end of said first worm shaft, said first worm shaft in communication with a first worm wheel to effectuate the position of a first orthogonal axis;
- a second drive in rotational communication with said drive shaft, said second drive comprising a second drive gear, a second worm shaft in communication with said second drive gear at a first end of said second worm shaft, said second worm shaft in communication with a second worm wheel to effectuate the position of a second orthogonal axis;
- a first one-way torque device disposed at said first end of said first worm shaft and in communication with said first drive gear to position said first orthogonal axis when said drive shaft is rotated in one direction;
- and
- a second one-way torque device disposed at said first end of said second worm shaft and in communication with said second drive gear to position said second orthogonal axis when said drive shaft is rotated in an opposite direction.
3 more elements
Dependencies are inferred from the claim text.