Air seal ring spraying mechanism for main shaft

• Main Authors: WANG WENGUANG, LI CHULAI, ZHENG LIANJIE, YAN FANGQING, WANG KUN, CHENG DANDAN
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING

The air seal ring spraying mechanism for the main shaft comprises a body part and a nozzle, and the body part is of an annular structure; the body part comprises a first end face and a second end face which are oppositely arranged in the thickness direction, the nozzles are arranged on the first end face in the circumferential direction, the second end face is provided with a medium inlet and a gas inlet, and the body part is provided with a plurality of gas spraying holes in the circumferential direction; a first annular cavity and a second annular cavity which are arranged in the circumferential direction are formed in the body part, the first annular cavity is communicated with the medium inlet and the nozzle, the second annular cavity is communicated with the gas inlet and the gas spraying holes, and gas sprayed out of the gas spraying holes can form an air curtain. The air seal ring spraying mechanism for the main shaft can effectively prevent foreign matter from entering a bearing of a rotating shaft, m