Common faults of wind turbines and their solutions: 1. The wind turbine shakes violently (1) Tighten the cable; (2) Tighten loose parts (3) Disassemble, lubricate and maintain; and reinstall the facility; 2. The speed of the wind wheel is significantly reduced (1) Lubrication and maintenance; (2) Bearing replacement; (3) Blade repair and replacement; p>
Changing the balance of the car Why doesn't the wind turbine spin quickly?
The wheel hub bearing is an important operating part of the car. The wheel hub shaft is responsible for reducing the friction resistance of the chassis during operation and maintaining the normal driving of the car. If the wheel hub bearing fails, it may cause noise, heating of the bearings, etc., especially the front wheel, which can easily lead to dangerous phenomena such as loss of steering. Therefore, theWheel hub bearings must be maintained on time.
1. Inspection of wheel hub bearings
(1) When checking the tightness of the wheel hub bearings, first install the wheel axle to one end of the wheel hub of the car to inspect and use a car stool to cover the car. Use wood and other utensils to install the car safely.
(2) Turn the inspected wheel several times by hand to see if it turns smoothly and if there is any abnormal noise. If the rotation is not smooth and there is a friction sound, it means that the brake part is not normal; if there is no noise, the rotation is not smooth and it is tight and loose, it means the bearing part is not normal. When the above abnormal phenomena occur, the wheel hub should be disassembled and inspected.
For small cars, when checking the rollwheel parts, hold the upper and lower sides of the tire with both hands, pull the tire back and forth with both hands, and repeat this several times. If this is normal, there should be no feeling of play or blocking; If there is an obvious feeling of play in the swing, the wheel hub should be disassembled and inspected.
(3) Brake inspection. Usually, when checking the wheel hub bearing, the wheel braking device is also checked. If there are oil stains inside the tire, it is probably caused by oil leaking from the brake cylinder or brake oil pipe. discovered and eliminated in time.
2. Maintenance of wheel hub bearings
Before disassembling the wheel hub, preparations for maintenance of the wheel hub should be made, the car should be parked stably, and the axle should be adjusted to ensure the safety of maintenance operations.
(1) Remove the decorative cover and dust cover from the hub shaft head;
(2) Remove the tire nut and tire, taking care not to damage the tire threads; bolts. If it is a disc brake, remove the brake and use pliers to remove the lock ring or lock pin.
(3) Use special tools to remove the wheel hub;
(4) Scrape off the old grease in the bearing, journal and hub cavity, and clean the hub bearing and shaft. with the neck of the cleaning agent and wipe with a cloth, and finally wipe the inner cavity of the wheel hub with a cloth.
(5) Check the hub bearing and bearing race. If cracks, fatigue spalling, and loose bearing rollers are found, the bearings should be replaced. If pitting is detected on the bearing race, the bearing should also be repaired.placed.
(6) Check the fit between the inside diameter of the bearing and the journal. The adjustment deviation should not exceed 0.1 O mm. When measuring the trunnion, it should be located in the upper and lower parts of. the vertical ground (This is the measurement of the greatest wear area. If the fit clearance exceeds the specified usage limit, the bearing must be replaced to restore normal fit clearance. It does not It is not allowed to make burrs or pitting on the journal to reduce the gap
(7) After all parts meet the requirements, apply grease to the inner bearing and place. -it into the wheel hub
(8) When applying grease to the inner cavity of the bearing, care must be taken to press the grease into the bearing until the grease emerges. on the other side of the bearing Apply a thin layer of grease to the hub cavity and bearing head cap.shaft to prevent rust. Be careful not to apply too much grease into the hub cavity, otherwise it will affect heat dissipation and braking.
(9) Reinstall the wheel hub and outer bearing onto the journal, tighten the shaft head adjusting nut by hand, then use a shaft head wrench to tighten the adjusting nut to the specified torque. After tightening the nut, you need to turn the wheel hub left and right several times to see how the bearing is installed. On the other hand, make sure that the bearing and seat ring fit properly when rotating. At this time, the sealing of the bearings is appropriate and the wheels can rotate freely without feeling axial play.
(10) Finally, install the lock plate, fixing nut, tire, dust cover, decorative cover and other parts in order.
(11) After the wheel hub bearing is adjusted, drive for acertain mileage (about 1 km), stop and check, and wipe the wheel hub temperature. If it's hot, it's because the wheel hub is hot. The bearing has been overtightened and needs to be readjusted. Release bearing tightening appropriately.
What is the grid connection method for wind power generation?
How to use SD7000 release agent to turn the balance car into a wind turbine that does not not spinning quickly? According to the request for relevant public information, the balance car transformed into a wind turbine did not rotate quickly and the tooling was tested in the air. After the tooling was tested properly, the interior surface of the tooling was cleaned with absolute ethanol. then SD7000 release agent was applied and Sole Carbon Nano was mixed as usual. The polymer material is mixed until it is uniform and shows no difference incolor, then the mixed material is evenly applied to the surface of the rod, scraped and pressed. repeatedly, and the tooling is installed until the material solidifies. Then the tooling is disassembled to check the size after repair, and the repair is completed by installing the bearing.
This means that the connection of wind turbines to the grid can be understood as two parts, and both parts are synchronized.
The first step is for the wind turbine to meet the start-up requirements, start and produce electric power, and connect it to the 3.5KV power grid inside the wind farm.
p>The second step is to merge with the national grid. Wind farms are usually equipped with booster stations, and the output power is converted from 3.5KV to 110KV (or 220KV) and injected into the national grid.