PTFE fabric liner and dry film combined friction pair, application and self-lubricating joint bearing

• Main Authors: YANG BINGHUA, ZHUANG CAIHONG, LI YONG, ZHANG LIPEN, ZHENG QINGHUANG
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2022
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAUNDERING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TEXTILES; THERMAL INSULATION IN GENERAL; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WEAPONS

The invention discloses a PTFE fabric liner and dry film combined friction pair, application and a self-lubricating joint bearing. The PTFE content of a working surface of a PTFE fabric liner in the friction pair is larger than or equal to 75%, the thickness of the dry film is controlled to be 6-12 microns, and the dry film is a molybdenum disulfide dry film lubricating layer. The PTFE fabric liner and dry film combined friction pair provided by the invention can well adapt to a high-speed rotation working condition, so that the friction pair keeps a very low temperature rise rate in a frictional wear process, and when the friction pair is applied to the self-lubricating joint bearing under the high-speed rotation working condition, the service life of the self-lubricating joint bearing can be prolonged. 本发明公开一种PTFE织物衬垫与干膜组合摩擦副、用途及自润滑关节轴承，摩擦副中PTFE织物衬垫的工作面PTFE含量≥75％，干膜厚度控制6-12μm，干膜为二硫化钼干膜润滑层。本发明提供一种PTFE织物衬垫/干膜组合的摩擦副，可以很好的适应高速旋转工况，让摩擦副在摩擦磨损过程中保持着很低的温升速率，应用在高速旋转工况下的自润滑关节轴承时，可以延长自润滑关节轴承的使用寿命。