Labyrinth seal device for belt conveyor turunabout drum

• Main Authors: ZHANG BINGBING, ZHAO YUAN, MI YAN, CAO BAOXIN, HE WENHAI, CHENG YONGJUN, REN ZHONGQUAN, TIAN FANG
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2012
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKING; PERFORMING OPERATIONS; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; STORING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The utility model discloses a labyrinth seal device for a belt conveyor turunabout drum. The device comprises inner seal covers which are arranged at two ends of a drum body, the inner seal covers are sleeved on a drum shaft, gaps are formed between the inner seal covers and the drum shaft, the inner seal covers are fixedly connected on a bearing seat which is located in the drum body, outer seal covers are arranged on outer sides of the inner seal covers, an S-shaped labyrinth seal is formed between outer end faces of the inner seal covers and inner end faces of the outer seal covers, the outer seal covers are fixedly installed on the drum shaft, a first exhaust vent is disposed on the outer end faces of the outer seal covers along the length direction of the drum shaft, and the first exhaust vent extends to the inner end faces of the outer seal covers. By means of the labyrinth seal device, the device is convenient for a user to fill lubricating oil in a bearing chamber, the structure is simple, the usage i