Bearing sealing device

• Main Authors: HAN FANGJUN, YIN XUEMEI, ZHANG YAN
• Format: Patent
• Language: English
• Published: 13.01.2016
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a bearing sealing device and belongs to the field of design of engine machines. According to the bearing sealing device, gas transmitted from a gas source is evenly transmitted to sealing teeth. The bearing sealing device mainly comprises a front labyrinth ring, a rear labyrinth ring and a gas guiding ring. Grooves are distributed in the rear labyrinth ring in the circumferential direction, and holes are formed in the grooves towards the central axis of the rear labyrinth ring. The sealing teeth are installed in an annular cavity of the rear labyrinth ring. Through holes are evenly distributed in the front labyrinth ring in the circumferential direction. One ends of the through holes of the front labyrinth ring are used for receiving gas transmitted from an annular cavity of the gas guiding ring, and the other ends of the through holes of the front labyrinth ring are communicated with the grooves in the rear labyrinth ring. The other end of the annular cavity of the gas guiding ring is communicated with the gas source. According to the bearing sealing device, gas transmitted from the gas source is mixed in the annular cavity of the gas guiding ring, sealing gas is evenly guided into the cavity between the front sealing teeth and the rear sealing teeth through the annular groove structures of the labyrinth ring and then flows to the sealing teeth, in this way, the problem that the sealing gas is not uniform is effectively solved, and the sealing effect is improved.