Combined sealing structure for slurry pump bearing

The utility model relates to the technical field of pump shaft sealing, in particular to a combined sealing structure for a slurry pump bearing, which comprises a shaft, a bearing box arranged on the shaft and a bearing arranged on the bearing box, the bearing box is provided with a bearing gland, the bearing gland is provided with a water retaining disc, and the water retaining disc is arranged on the bearing box. And an oil seal is arranged between the water retaining disc and the bearing gland. Therefore, the combined sealing structure for the slurry pump bearing can solve the problems of bearing failure and grease leakage caused by gradual aging of the oil seal along with the prolonging of time. 本申请涉及泵轴密封技术领域，尤其涉及一种用于渣浆泵轴承的组合密封结构，包括轴、设置在所述轴上的轴承箱以及设置在所述轴承箱上的轴承，所述轴承箱上安装有轴承压盖，所述轴承压盖上安装有挡水盘，所述挡水盘与所述轴承压盖之间设置有油封。因此，通过一种用于渣浆泵轴承的组合密封结构能解决随着时间的延长，油封逐渐老化，就会导致轴承失效，油脂外泄的问题。