Positioning and locking device of mobile screw rod support bearing

• Main Authors: LIU SHANPEI, LU GANCHUN, JIAN BAOYIN
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2014
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a positioning and locking device of a mobile screw rod support bearing. The device comprises a ball screw, wherein the ball screw is provided with a lock nut in thread fit with the ball screw; a supporting pedestal is sleeved at one end of the ball screw; and a bearing is arranged between the supporting pedestal and the ball screw. The device is characterized in that the lock nut is provided with a radial notch so that the cross section of the lock nut is C-shaped; a through hole is formed in one side provided with the radial notch in the lock nut; a thread hole is formed in the other side of the radial notch; and the ball screw is locked or unlocked by the lock nut by a fastener arranged on one side of the through hole. The device has large lock force and wide distributive area, and can endure variable impact carrying capacity caused by long-time back-and-forth reversing of the equipment.