Actuator containing two ball screws in series employs Belleville springs to reduce impact loads, thereby increasing life expectancy. New application of springs increases reliability of equipment in which ball screws commonly used. Set of three springs within lower screw of ball-screw mechanism absorbs impacts that result when parts reach their upper and lower limits of movement. Mechanism designed with Belleville springs as shock-absorbing elements because springs have good energy-to-volume ratio and easily stacked to attain any stiffness and travel.
Shock-Absorbent Ball-Screw Mechanism
NASA Tech Briefs ; 10 , 5
1986-09-01
Miscellaneous
No indication
English
MANUFACTURING METHOD OF BALL SCREW MECHANISM AND BALL SCREW MECHANISM
European Patent Office | 2020
|European Patent Office | 2018
|