Yaw brake disc of wind power generator set and yaw system comprising brake disc

The invention discloses a yaw brake disc of a wind power generator set and a yaw system comprising the brake disc. The brake disc comprises a ring-shaped friction region and a ring-shaped non-frictionregion in the radial direction, the non-friction region is located on the inner side of a flange connection area of an outmost ring of the brake disc, the friction region is located on the inner sideof the non-friction region, a non-through annular oil discharge groove which is downwards recessed relative to the upper surface of the friction region is formed in the non-friction region, a plurality of through oil discharge holes are formed in the annular oil discharge groove, a non-through chip removal groove is formed in the friction region, and a plurality of through chip removal holes areformed in the chip removal groove. 本发明公开了一种风力发电机组的偏航制动盘及包括该制动盘的偏航系统，制动盘沿径向包括环状的摩擦区域和环状的非摩擦区域；所述的非摩擦区域位于制动盘最外圈的法兰连接区域内侧；摩擦区域位于非摩擦区域的内侧；在非摩擦区域内设有相对于摩擦区域上表面向下凹陷的非贯通的环形排油槽；在所述的环形排油槽内设有多个贯通的排油孔；在所述的摩擦区域内设有非贯通的排屑槽，在所述的排屑槽内设有多个贯通的排屑孔。