alternator introduce

Generators are mechanical equipment that converts other forms of energy into electrical energy. They are driven by water turbines, steam turbines, diesel engines, or other power machinery, which convert the energy generated by water flow, airflow, fuel combustion or nuclear fission into mechanical energy and transmit it to the generator. The generator is then converted into electrical energy. Generators have a wide range of applications in industrial and agricultural production, national defense, technology, and daily life. There are many forms of generators, but their working principles are based on the laws of electromagnetic induction and electromagnetic force. Therefore, the general principle of their construction is to use appropriate magnetic and conductive materials to form magnetic circuits and circuits that conduct electromagnetic induction with each other, in order to generate electromagnetic power and achieve the purpose of energy conversion. Generators are usually composed of stators. The rotor is composed of rotor, generator (Figure 2) end cover, bearings, and other components. The stator is composed of stator core, wire wrapped winding, machine base, and other structural components that fix these parts. The rotor is composed of rotor core (or magnetic pole, magnetic choke) winding, protective ring, central ring, sliding ring, fan, and shaft. The stator and rotor of the generator are connected and assembled by bearings and end cover, allowing the rotor to rotate in the stator, The motion of cutting magnetic lines of force generates induced electromotive force, which is led out through wiring terminals and connected to the circuit to generate electric current. The diesel generator is driven by the diesel engine, and the generator (Figure 4) converts the energy of diesel into electrical energy. In the cylinder of the diesel engine, clean air filtered by the air filter is fully mixed with high-pressure atomized diesel injected by the fuel injector. Under the compression of the piston upward, the volume shrinks and the temperature rapidly increases, reaching the ignition point of diesel. Diesel is ignited, and the mixed gas burns violently. The volume rapidly expands, pushing the piston downward, which is called "work". The gasoline generator is driven by the gasoline engine, which converts the energy of gasoline into electrical energy. In the cylinder of the gasoline engine, the mixed gas burns violently, causing the combustion of the mixture. The volume rapidly expands, pushing the piston down to do work. Whether it is a diesel generator or a gasoline generator, each cylinder works in a certain order, and the thrust acting on the piston is converted into the force that drives the crankshaft to rotate through the connecting rod, thereby driving the crankshaft to rotate. By coaxially installing the brushless synchronous AC generator with the crankshaft of the power machine, the rotor of the generator can be driven by the rotation of the power machine, Using the principle of electromagnetic induction, the generator will output induced electromotive force, which can generate current through a closed load circuit)

Installation method of generator/generator assembly

Disassembly and assembly of automotive silicon rectifier generator 1. Inspection before disassembly (1) Clean the exterior of the generator; (2) Hand held pulley test for axial and radial clearance of bearings before testing; (3) Rotate the rotor and check for bearing resistance, noise, and any friction or abnormal noise between the rotor and stator. When significant resistance is found, remove the brush and try again to determine whether the resistance comes from the brush or the bearing; (4) Rotate the rotor shaft to visually inspect the runout of the pulley to determine if the rotor shaft is bent; (5) Check for cracks and damage in the casing, hanging feet, and other parts. 2. Disassemble the silicon rectifier generator. (1) Remove the rear bearing cover and oil seal, and unscrew the rotor shaft fastening nut; (2) Remove the fastening screws of the front and rear end covers to separate the front end cover with the rotor from the rear end cover with the stator, and make the same mark on the front and rear end covers and the stator core for easy reassembly; (3) Remove the fastening nut of the pulley, remove the pulley, fan, and half round key, separate the rotor from the front cover, and be careful not to pull the stator coil lead wire off; (4) Remove the front bearing cover and take out the front bearing; (5) Remove the protective cover from the rear cover; (6) Remove the connecting nut between the stator coil wire end and the neutral wire end on the component board, separate the stator from the component board (heat dissipation plate), and remove the stator assembly; (7) Remove the nuts securing the component board assembly and the armature terminal on the rear cover, and remove the component board assembly. 3. Assembly of the generator. (1) First, add No. 1-3 composite calcium based grease to the bearing, but the amount of grease filled in the bearing should not be too much to avoid overflow and splashing on the slip ring, causing poor contact of the electric brush; (2) Assemble the bearings of the front and rear end covers separately (201 # 203 #); (3) Install the rectifier component board onto the rear cover (do not miss the insulation pad); (4) Install the stator assembly onto the rear end cover and connect it to the rectifier component board (the four wiring terminals on the stator winding should be natural and not forcefully pulled or folded to avoid rotor scratches); (5) Install the rotor assembly onto the stator and rear end cover; (6) Combination connection of front and rear end covers (note that the nut of the connecting bolt is facing the fan, and the connecting bolt should be tightened diagonally. While tightening, rotate the rotor to check if it scratches the stator, so as to avoid burning the rotor and stator. If there is a phenomenon of rotor scraping the stator, use a wooden hammer to strike the generator casing for adjustment); (7) Assemble the half round key, fan, pulley, and rotor shaft front and rear fixing nuts; (8) Assemble the brush holder assembly (note that the position of the brush holder and the copper slip ring on the rotor shaft should be aligned, and one brush should not eat two slip rings, which will prevent power generation); (9) The assembled generator should rotate flexibly, without any jamming, scraping or collision sounds, and the rotor shaft should not have any movement

Qingling multifunctional vehicle introduce

The Isuzu (ISUZU) multifunctional car is a multifunctional car owned by Chongqing Qingling Automobile Co., Ltd. It is a project jointly developed by Chongqing, China and Japan's Isuzu Automobile Company, specializing in the production of Isuzu (ISUZU) multifunctional cars. The exterior design of this car adopts Isuzu Rodeo technology, and the car is fashionable, smooth and soft, suitable for the appreciation habits of Easterners. The seating space is relatively spacious, and the luggage capacity can be expanded from 991 liters to 2121 liters depending on the seat changes, The upper and lower parts of the tailgate can be fully opened, making it convenient to place objects. Borrowing from the chassis of the Isuzu pickup truck, the model with four-wheel drive function is composed of six crossbeams, and important positions such as the water tank, transmission, fuel tank, and transfer box under the body are equipped with collision protection plates. The ground clearance is relatively large, and it has a certain degree of off-road performance, so it has good versatility. The market price of this car is about 180000 yuan for four-wheel drive models and 170000 yuan for two wheel drive models, From a performance to price perspective, it is relatively ideal ISUZU is a globally recognized outstanding automotive brand, representing the perfect combination of excellent performance and safety and comfort. Qingling Automobile Co., Ltd., in response to the needs of the Chinese market, has simultaneously introduced the most advanced design concepts and manufacturing technologies of ISUZU from Japan. With a scientific and pragmatic attitude, a proactive spirit, and the spirit of climbing to new heights, we are manufacturing the world's advanced level of cars for China - the RODEO Sports Multi functional Vehicle, whether it is leisure off-road, Whether it's for urban commuting, it showcases its natural elegance and heroism. From design to production, the competitive multifunctional car follows the principles of ergonomics, and is equipped with user-friendly design principles from large to small parts. The car is equipped with easily accessible switches and control systems, electric rearview mirrors, high-end walnut wood decorative panels, adjustable steering wheel, map lighting, adjustable front and rear seats, and a variety of combinations. The rear seats can be completely flattened, The luggage area can be expanded from 1.3 square meters to 2.3 square meters