| 摘要 |
A seal device includes a sleeve, a gland, a sealing assembly, an end collar and a protective cushion. The sleeve is adapted to be sleeved on a rotary shaft of a pumping machine and has inner and outer end portions in an axial direction. The gland is disposed around the sleeve, and is formed with a through hole that permits extension of the sleeve, and a receiving groove that communicates fluidly with the through hole and that is adapted for receiving cooling fluid. The sealing assembly is sleeved on the sleeve and is connected to the gland. The end collar is disposed around the sleeve and outside the gland. The protective cushion is disposed around the sleeve and between the gland and the end collar.
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