Heavy truck automotive transmission shaft repair and maintenance

The transmission shaft is a shaft capable of transmitting power among the transmission shafts of the universal transmission device. It is a rotating body with high speed and less support, so its dynamic balance is crucial. A general drive shaft balancing test should be carried out at the factory, and the tone on the balancing machine whole. For a front-engine rear-wheel-drive car, the rotation of the transmission is transmitted to the shaft of the final drive . It can be several nodes, and the nodes can be connected by universal joints. The transmission shaft is connected or assembled with various accessories, and the circular object accessories that can be moved or rotated are generally made of alloy steel pipes with light and torsion resistance. For front engine rear wheel drive car is transmitted to the rotational axis of the final drive of the transmission, which may be a several sections connected by a universal joint. It is a high speed, small rotary support member, because of this its dynamic balance is critical. Generally, the transmission shaft must be tested for dynamic balance before leaving the factory , and adjusted on the balancing machine.

1. Structure

The transmission shaft is composed of a tube shaft, a telescopic sleeve and a universal joint. Bellows can automatically adjust variations change the distance between the speed and the drive axle. The universal joint is to ensure the change of the angle between the two axes of the transmission output shaft and the input shaft of the drive axle, and realize the equal angular speed transmission of the two shafts.

2. Function

Power transmission shaft is an important component of the vehicle drive system, it is the role of the transmission case, a drive axle with the transmitting power of the engine to the wheels making the car to generate a driving force.

3. Use and maintenance

In order to ensure the normal operation of the drive shaft, extending its life, in use should note is intended to:

1 . Non-automotive high-speed gear start. 2 . It is strictly prohibited to lift the clutch pedal. 3 . It is strictly forbidden to overload or speed the car. 4 . The working condition of the transmission shaft should be checked frequently. 5 . Should always check the tightness of the hanger shaft, the supporting rubber is damaged, the drive shaft if all joints loose waste , the drive shaft is deformed. 6 . In order to ensure the dynamic balance of the transmission shaft, it should always pay attention to whether the balance welding piece is de-welded . The new transmission shaft assembly is provided as an accessory. When installing the new transmission shaft, pay attention to the assembly mark of the telescopic sleeve and ensure that the flange fork is in a plane. When the drive shaft disassembly maintenance, should stretch shrink sleeve and the holding relationship is not the print original assembly matchmarks flange shaft assembly for reuse becomes. 7 . Every . 6 months or 20000km filling and lubrication for the sliding sleeve joint and the intermediate support fat, should be injected into the summer . 3 The lithium grease, injection winter 2 The lithium grease, fuel injection based on the new oil spill prevail . 8 . Unscheduled tightening of the transmission shaft fastening bolts, especially the protruding element fork The connecting bolts and the fixing bolts of the intermediate support bracket should be tightened according to the specified torque. 9 . Analyzing related failures based on resonance caused by the drive shaft may be the drive wheels from the top, the steering axle against the mat (to prevent the danger of the vehicle out), start the engine and to achieve resonance speed, check whether the pounding shaft, if no change and a drive shaft running smoothly, it can be ruled out factors that drive shaft, drive shaft up and down or left and right jump and do move the removable check balance, balancing invalid replaceable drive shaft.

Heavy truck automotive transmission shaft  Heavy truck automotive transmission shaft