The symptoms of automobile transmission shaft is broken and ruled out

The symptoms of automobile transmission shaft is broken and eliminate 2019 - 02 - 20 what is a drive shaft? The shaft is composed of shaft, telescopic sleeve tube and a universal joint. As shown in the figure below. It is used together with transmission and drive axle transfer the power of the engine to the wheels, make the car produces driving force. Symptoms of automobile transmission shaft is broken: 1, when the car started or driving gear shift in the shaft has a sound, especially on high speed gear noise at low speed. 2, drive shaft is ringing when the car started, and when the car drive shaft impact sound. 3, drive shaft is ringing when the car started, and when the car sliding sound transmission shaft. 4, car noise constantly in the process of the drive. Automobile transmission shaft broken failure cause analysis: 1, the shaft flange joint ( Or connection bolt) Loose, cause the sound. 2, all the grease fitting ( Commonly known as grease nipple) , cross shaft oil duct jam for injection into the grease, fail to filling grease, cross shaft oil seal damage and causes such as oil, causing the spider needle roller bearing under the condition of lack of lubricating oil for a long time to work, make a cross shaft neck, needle and sleeve wear is too large, forming loose kuang is caused by the different ring. 3, universal spindle assembly too tight. 4, the sleeve and the cardan hole with loose kuang, supporting bolts loose sleeve rotation, make wear universal joint fork hole is too big, loose kuang is caused by the different ring. 5 second, transmission shaft spline and flange wear is too large, the spline forming loose kuang is caused by the different ring. 6, drive shaft intermediate support bracket is loose, intermediate support with intermediate shaft journal kuang, intermediate shaft back-end spline with flange keyway with loose kuang and back-end nut is loose. 7, drive shaft center support bearing apart, poor lubrication, bearing raceway damage, bearing excessive wear and loose kuang. 8, drive shaft intermediate support bracket installation position deviation degree, bearing preload adjustment improper, rubber ring gasket casing damage, intermediate support bracket bolt tightening torque is too big or too small, deflection and cause of stent location, caused by the different ring. 9, at the ends of the drive shaft universal joint fork is not in the same plane, ruined the uniform arrangement caused by sound. Automobile drive shaft failure what hazard analysis: 1, the tire pressure, pump the steering column of interference, loose connection, the slippage of the pump belt loose, loose or pump installation location. 2, the connection parts of tubing bolt looseness, causing fluid leakage. 3, steering cylinder piston wear is too big, oil seal, valve or damage. 4, oil cup is too dirty, mesh stuck or oil cup oil level is low. 5, there is a lot of air in the power steering system. 6, steering steering pump flow control valve binding foreign body in it. How to maintain the shaft: actually there drive pay attention to the point, can significantly extend the service life of it. Owners should try to avoid to hit the steering wheel in place, because it will cause the cardan joint because of the heavy load and shorten life. Avoid high gear start, fierce to lift the clutch pedal, overload, speed and so on. If the conditional check the working condition of the drive shaft, check the shaft hanger whether fastening, rubber bearing is damaged, whether the shaft deformation and so on.