GEARMOTORS WITH LOW BACKLASH IN ARMY ENGINEERING
 

Siniša Kuzmanović
Milan Rackov

Apstrakt:
Low backlash gear reducers are mechanisms widely used in mechanical engineering, primarily in machine tools for accurate positioning of tools during manufacturing, in measuring machines, scanners and radars for accurate transmission of motion, in robotics for accurate positioning of nippers and other working parts, and particularly in military engineering (with artillery tools and rocket launchers) to capture the correct angle and elevation angle in azimuth, aviation, etc. It is known that low backlash gear reducers are all those gear units where the arc backlash is less than 10 angular minutes, though for accurate positioning (1m to 1km) the arc backlash is only slightly greater than 3 angular minutes. This paper describes the universal low backlash trunks, their structure, functioning, ways of securing low backlash, methods of selection, installation, monitoring, servicing, maintenance, defect, repair and, finally, their way of recycling. This paper could provide useful information to designers of military equipment and weaponry.
Key words: mechanical engineering, mechanisms, gear, low backlash gear, military application.