What are the differences between is analyzed. studying bearing and yaw bearing?

What are the differences between is analyzed. studying bearing and yaw bearing? 2020 - 12 - 16 to 1. The surface anticorrosion treatment for yaw bearing requirements we adopt electric arc spraying long-term anti-corrosion technology. It is the use of special electric arc spraying equipment corrosion resistant metals ( Pure aluminum or zinc) Melting, atomization and spraying to the workpiece surface metal arc spraying layer, and then use permeability strong corrosion resistant coating on the closed processing, arc spraying long-term anti-corrosion composite coating. Its technical characteristics are: (1) corrosion life is long, can reach more than 20 years. (2) high coating binding force; (3) coating is of good quality. The process route: bearing inner and outer circle to prepare & rarr; Precleaning & rarr; Artifacts beforehand protection & rarr; Sandblasting & rarr; The arc spraying & rarr; Closed treatment, the current employees. 1) Bearing inner and outer circle of semi-finished products to prepare in order to guarantee the appearance of the yaw bearing with high quality, arrange anticorrosive coating process after all machining, after the completion of the bearing parts in the assembly after the spray directly into the Treasury, guarantee will not be scratches on the coating. 2) Precleaning treated with organic solvent to oil removal, bearing the semi-finished products after machining surface may be oily be soiled, in order to ensure the quality of spraying must be arranged before spraying clean process. 3) Artifacts beforehand protection before the sandblasting and coating on the special surface to protect the equipment to realize the workpiece circular arc raceway, threaded hole and do not need to spray the surface of the protection. 4) Sandblasting surface coarsening processing of bearing inner and outer circle, increase the contact area between coating and artifacts, make the surface more activation, improve the coating bond strength. 5) The arc spraying the arc spraying ( Pure aluminum or zinc) Equipment mainly includes the dc power supply, spray gun, air compressor, air filter, etc. , it mainly controls the arc voltage, current and wire feed speed, compressed air parameters such as pressure, spraying distance. 6) Closed treatment because after spraying coating porosity, so must be closed processing, increase the ability to resist corrosion. The yaw bearing the main leakage after spraying and assembly processing, install thread surface and the surface of the gear surface arc raceway surface. The former two are coated with anti-rust oil after assembly, after a coated with grease, when assembly finished the inner packing with plastic film closed wound, outer protective wrapping with plastic woven belt, can meet the requirements of rust. 2. Yaw damping torque damping moment after bearing assembly has two sources: one is roll part of friction resistance, seals and sealing surface friction resistance. The latter under the same processing conditions generally is constant, so the size of the yaw damping moment after bearing assembly is mainly depends on the former. Friction resistance produced by the raceway section in rotary torque mainly depends on the size of the bearing clearance. Clearance is small resistance and small gap resistance increases accordingly. The yaw bearing for zero or negative clearance, clearance of negative gap depends on the friction damping torque to decide after assembly. Therefore after assembly friction damping torque size basically depends on the yaw bearing assembly gap value, and the formation of this value depends on: fine car before quenching raceway size, raceway surface hardening, raceway grinding after quenching size and the size of the roller equipped with four links. Wind power bearing ( The yaw bearing, is analyzed. studying bearing) The stress of the situation was complex, and bearing the shock and vibration is larger, therefore, request bearing can withstand the impact, and can bear larger load. Wind turbines host life for 20 years, bearing the cost of the installation is bigger, so is analyzed. studying yaw, bearing life also want to up to 20 years. Wind turbines may work in extremely cold areas, the environment temperature as low as. . . The working temperature of 40 ℃ or so, bearing in - About 20 ℃, the bearings under the condition of low temperature must be able to withstand the big impact load. Yaw, variable propeller has special requirements in clearance of the bearing. Is analyzed. studying relative to the yaw bearing, bearing a larger impact load, the wind blows to the blade vibration is big, so the requirement is analyzed. studying bearing clearance should be zero clearance or slightly negative clearance value, so in the case of vibration can reduce the bearing of fretting wear. The yaw bearing requirements for small clearance value. Wind turbine equipment work in the field, and yaw, part of the blade bearing is exposed outside, will be affected by air pollution and high humidity environment may also be corrosion bearing matrix, therefore, is analyzed. studying bare outside the yaw and the part of the bearing requirement of surface anti-corrosion treatment. （ Source: international new energy network)