| 摘要 |
The bioreactor (1) comprises a container (2), a shaft housing (3) to implement a shaft (5) through a wall, a stirrer (6) connected in an interior of the container with the shaft, and a drive (4) connected with the shaft and arranged at the outside of the container. The shaft is mounted in the shaft housing over a ball bearing and is sealed by a first gasket opposite to the shaft housing. The gasket is formed as a radial shaft sealing ring with two sealing lips dryly running on the shaft, where the sealing lips are arranged one behind the other in the longitudinal direction of the shaft. The bioreactor (1) comprises a container (2), a shaft housing (3) to implement a shaft (5) through a wall, a stirrer (6) connected in an interior of the container with the shaft, and a drive (4) connected with the shaft and arranged at the outside of the container. The shaft is mounted in the shaft housing over a ball bearing and is sealed by a first gasket opposite to the shaft housing. The gasket is formed as a radial shaft sealing ring with two sealing lips dryly running on the shaft, where the sealing lips are arranged one behind the other in the longitudinal direction of the shaft. The wall of the container is flexibly formed. The shaft sealing ring has a closed front surface back to the interior of the container. The front surface passes over a sealing lip, which is formed as protective lip, in the radial direction. The shaft sealing ring has the sealing lip back to the externally-lying drive. The sealing lip is sealingly pressed against the shaft surface by a spring ring. A second gasket adjacent to the first gasket is arranged in the longitudinal direction of the shaft. The front surface and the outer wall of the shaft sealing ring, which runs parallel to the shaft, turned to the shaft housing have a cup-shaped reinforcement. The shaft housing is formed in a pot-shaped manner and protrudes with its lower part having a bottom in the interior of the container. The bottom has a passage opening for the shaft and forms a support bearing for the first gasket, which rests with its front surface on the bottom. The shaft housing has a cylindrical outer wall with a radially rotating flat flange, which is connected with the adjacent flexible wall of the container. The shaft housing has a flange with a circular groove for receiving a flange gasket at its upper edge turned away from the bottom and a corresponding flange of the drive is flange-mounted to the flange. The free end of the shaft turned away from the stirrer is coupled to a drive shaft of a motor of the drive over a coupling. The shaft is fixed in its longitudinal direction over a seat of the ball bearing. The ball bearing is arranged in a recess of the shaft housing and is secured in its position over a snap ring arranged in the circular groove of the shaft housing. |
