Actuator
AssigneeSchukra of North America, Ltd.
InventorsZhihang Li, Saili Li, Liming Tang, Xu Du
Life of this patent
Estimating the term…
Abstract
An actuator is disclosed. The actuator includes two main assemblies: (1) a motor assembly; and (2) a gearbox assembly. The gearbox assembly includes multiple stages of gear reduction and a dividing plate. In some embodiments, the gearbox assembly has a single-lead worm, a worm gear with a right-hand helix tooth direction, and a worm gear with a left-hand helix tooth direction. The worm gears are driven by the single-lead worm. The single-lead worm has two ends, one end has a right-hand tooth helix direction, and the other end has a left hand helix direction.
Claims24
An actuator comprising:
- a. a motor assembly having an output shaft;
- b. a gearbox assembly having a first stage of gear reduction and a second stage of gear reduction, wherein said first stage of gear reduction includes at least one worm and said first stage of gear reduction is operatively connected to said output shaft of said motor assembly;
- and
- c. a dividing plate intermediate said first stage and said second stage of gear reduction and said dividing plate biasing said at least one worm to reduce axial movement of said at least one worm.
An actuator comprising:
- a. a gearbox housing;
- b. a motor having an out put shaft and connected to said gearbox housing;
- c. at least one worm gear rotatably connected to said gearbox housing;
- d. at least one worm connected to said output shaft and in driving communication with said at least one worm gear;
- e. a dividing plate removably connected to said housing and having at least one opening, said dividing plate having a recess to receive said at least one worm such that said at least one worm rotates within said recess;
- f. at least one pinion gear located within said at least one opening and operatively connected to said at least one worm gear;
- g. at least one spur gear driven by said at least one pinion gear;
- and
- h. an output member connected to said at least one spur gear for rotation therewith.
A method of assembling an actuator, the method comprising the steps of:
- a. providing a gearbox housing;
- b. connecting a motor having an out put shaft to said gearbox housing;
- c. rotatably connecting at least one worm gear to said gearbox housing;
- d. connecting a worm to said output shaft and in driving communication with said at least one worm gear;
- e. removably connecting a dividing plate to said housing and having at least one opening, said dividing plate having a recess to receive said worm such that said worm rotates within said recess;
- f. locating at least one pinion gear within said at least one opening;
- g. operatively connecting said at least one pinion gear to said at least one worm gear;
- h. placing at least one spur gear in a driven relationship with said at least one pinion gear;
- and
- i. connecting an output member to said at least one spur gear for rotation therewith.
Dependencies are inferred from the claim text.