Gimbal apparatus for translating rotational motion to accurate l

Details Gimbal apparatus for translating rotational motion to accurate l Gimbal apparatus for translating rotational motion to accurate l

1987-06-01

1988-10-25

Staab, Lawrence

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

744248R, F16H 2522, B23Q 2300

Patent

active

047794739

ABSTRACT:
A lead screw driven by a motor has a drive nut threadably connected to the lead screw for reciprocation therealong. The drive nut is rotationally restrained thereby limiting its movement along the axis of the lead screw. Three disk members each having an opening through their centers are positioned on the lead screw. The two outer disk members each have at least a pair of bearing members, such as ball bearings, positioned along a diameter of the disk on adjacent sides of the opening. A keeper member is positioned on the lead screw to sandwich the three disk members between the drive nut and the keeper member. Indexing members are positioned on the drive nut and the keeper member to maintain the diameters of the two outer disks, having the bearings mounted therein, orthogonal with respect to each other. A linear motion device is rigidly coupled to the keeper member such that rotary motion of the lead screw is translated to the linear motion device without flexure, eccentricities, or other undesirable movement of the lead screw being transmitted to the linear motion device.

REFERENCES:
patent: 3745840 (1973-07-01), Guralick
patent: 3977262 (1976-08-01), Randolph
patent: 4302981 (1981-12-01), Wayman
patent: 4372222 (1983-02-01), Tice
patent: 4372223 (1983-02-01), Iwatani
patent: 4530251 (1985-07-01), Henle
patent: 4597303 (1986-07-01), Nakaya

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