Relevant introduction of sliding bearing of generator set
Type of sliding bearing: It can be divided into radial sliding bearing and thrust sliding bearing. The types of lubricating oil can be divided into oil lubricated bearings, grease lubricated bearings, water lubricated bearings, gas bearings, solid lubricated bearings, magnetic fluid bearings and electromagnetic bearings.
According to the thickness of the lubricating film, there are two types of quiet box 120KW generator sets, which can be divided into thin-film and thick-film lubricating bearings.
Can be divided into bronze bearings, cast iron bearings, plastic bearings, gem bearings, powder metallurgy bearings, self-lubricating bearings and bearing oil bearings.
According to the bearing structure, it can be divided into round bearings, oval bearings, triple oil bearings, step bearings, tilting pad bearings and foil bearings.
Features of sliding bearings: The main part of the installation of sliding bearings, sliding bearings are mostly used in large power plant connection equipment. The bearing bush is generally made of Babbitt alloy, so the bearing shell has a softening point, a low melting point, and a shaft in the contact area. Large, can carry heavier loads, also has good damping performance, can withstand large impact loads, if the lubricating oil is stored in the bottom of the bearing oil poor driving, the formation of oil film on the tile surface will be guaranteed.
Generally speaking, the temperature of the rolling bearing does not exceed 80 °, and the sliding bearing is relatively low, the temperature does not exceed 70 degrees, and the 120 kilowatt silent sound generator.
- Blue smoke, fire reason: It means that the engine is burning oil. There are three types of reasons: first, the piston ring goes opposite, and the oil comes in the cylinder; the second is the oil level of the oil pan of the atmosphere filter, which leads the ring. The height of the groove; Third, the gap between the duct and the valve stem is too poor. Expulsion idea: Adjust the piston ring so that the opening teeth of the ring are staggered 120 degrees or 180 degrees, and the opening teeth of the ring should avoid the piston pin hole and the side pressure is poor. Adjust the height of the oil level of the oil filter of the atmosphere filter below the height of the annular groove; if the clearance between the duct and the valve stem is too poor, replace the component and reduce the clearance. The normal mutual assistance clearance between the two is 0.0
- In the power generation industry in China, we have been working hard, pursuing the concept of quality and service, and for the sake of customers, the full power generator chooses China and your generator is a professional housekeeper. At present, the diesel generator set maintenance market refers to damage inspection and routine maintenance. Two aspects: after maintenance refers to the failure of the diesel generator, there are problems with various accessories, such as replacing the generator or
- Before starting, you should check whether the fuel volume of the fuel tank is rich, and there is no oil leakage in each oil pipe and the discussion area; whether the cooling system water is rich, clean and leak-free, and whether the fan belt is tight or not. The internal combustion engine and generator drive part should be connected and trusted The wires of the input line are well-insulated, complete and effective in all aspects. After starting, it should run at low speed for 3 to 5 minutes. After the temperature and oil pressure wheel are normal, the initial work can be done. The generator should be no different in the speed increase. Ring, the slip ring and commutator are well brushed, no jumping and sparking phenomenon. After the operation is stable and the frequency and voltage reach the rated value, power can be supplied to the outside.
- The diesel engine is working normally, but the generator fails to generate electricity or the voltage is very low. This may be due to the components associated with the generator, such as: the exciter is damaged, and the excitation voltage cannot be supplied. The excitation current is taken in. The rotor's dead center residual magnetism is weakened or declining. It will make the generator unable to generate electricity or the transmission voltage is extremely low. The right to respond is usually: use an appropriate DC voltage and directly connect it to the excitation winding according to the polarity. Magnetization. Carefully inspect the exciter and the cyclotron rectifier, find abnormal components or windings, and replace them for restoration. The generator's transmission voltage is unstable, and
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