MONITORING APPARATUS AND METHOD FOR DYNAMIC CONTACT STATE OF MULTI-LAYER WOUND WIRE ROPE AND DRUM IN ULTRA-DEEP WELL

• Main Authors: WANG, Dagang, HOU, Mengfan, CHAO, Chubei, WANG, Xiangru
• Format: Patent
• Language: Chinese; English; French
• Published: 21.12.2017
• Subjects: CAPSTANS; HAULING; HOISTING; HOISTS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LIFTING; MEASURING; PERFORMING OPERATIONS; PHYSICS; TACKLES, e.g. PULLEY BLOCKS; TESTING; TRANSPORTING; WINCHES

A monitoring apparatus and method for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well, the monitoring apparatus comprising a support system, a winding system, a dynamic loading monitoring system, and a stress monitoring system. The winding system comprises an electric motor (10), the electric motor being connected with a main shaft (18) through a speed reducer (12), the main shaft (18) having a flange plate arranged thereon, the flange plate fixed with a double-fold-line drum (16) being sleeved on the main shaft (18), friction discs (15, 17) being fixed at two sides of the double-fold-line drum (16), disc brakes (2, 3, 20, 21) being fixed at one side of the friction discs (15, 17), and at least two layers of a wire rope (4) being wound on a rope groove of the double-fold-line drum (16); the dynamic loading monitoring system comprises a servo electric cylinder (8), a threaded rod of the servo electric cylinder (8) being connected with a wire rope clamp (6) via a S-shaped