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The function and structure and type difference of automobile half shaft (drive shaft)

: admin: 2022-05-25 18:54:00: 21
The car half shaft is also called the drive shaft, which connects the differential with the drive wheels. The half shaft is the shaft that transmits the torque between the gearbox reducer and the drive wheel. There is a universal joint at the inner and outer ends to avoid damage, while the outer end bears the full bending moment. In the semi-floating semi-axle, there is only one tapered roller bearing between the semi-axle and the integral axle housing, which must bear the axial force alone, and use the lock nut 3 to keep the wheel close to the inner end. Therefore, in addition to the torque transmission function of the half shaft, the force of the road surface on the wheels is all pressed on the half shaft. In this way, the half shaft bears the bending moment produced by the vertical force, the lateral force and the longitudinal force at the same time, which is as hard as a model worker. The flange at the outer end of the full-floating axle shaft is connected to the hub with bolts, and the hub is supported on the axle bushing by two tapered roller bearings, which are connected to the wheel to carry the weight through the bearing, so the impact of the ground is completely affected by the axle. Bearing, and the half shafts theoretically only bear the torque from the engine at this time. It is also easier to disassemble. It only needs to unscrew the nut on the flange of the half shaft, and then the half shaft can be pulled out from the half shaft sleeve. At this time, the wheel and the whole axle housing can still support the whole car. Therefore, in general, the half-bearings in the fully floating half-shaft are subjected to much simpler forces, with the two tapered roller bearing sets bearing the outward and inward axial forces, respectively, stabilizing the wheel. When various actions such as flying jumps occur in off-road, the full-floating structure is relatively stronger, the structural bearing capacity is high, and the half shaft and bearing are not easily deformed or broken. Off-road vehicles use semi-floating axles. However, although full-floating axles are theoretically stronger, most off-road vehicles on the market currently use semi-floating axles. For example, we are familiar with the Jeep Wrangler, Land Rover Defender, Mercedes-Benz G500 and so on. On the premise that the structure and material can be guaranteed, the semi-floating semi-shaft can also make good strength. Trucks with full-floating half-axles The ones with full-floating half-axles are heavy-duty trucks--sturdy, in order to run fast. Off-road vehicles with full floating axle shafts are relatively rare, such as Beijing 212, some batches of Toyota LC80, and Beijing 40. The full floating type and the semi-floating type can be distinguished in appearance. Two rings of fixing bolts can be seen on the wheel hub, the outer ring is connected with the shaft sleeve flange, and the inner ring is connected with the drive shaft. However, like the half shaft of the BJ40, the screws are inside and are not easy to find. However, as long as the wheels are removed, all cars can immediately see whether they are fully floating structures. Of course, there are also off-road wheel rims, which also have two rings of screws. In addition to the screws in the middle of the hub, there is a ring of smaller and finer bolts on the side near the tire. This is an anti-drop ring and has nothing to do with the half shaft. 與此原文有關(guān)的更多信息要查看其他翻譯信息,您必須輸入相應(yīng)原文