What is the drive shaft?

is a high speed shaft, the rotating member supported less, so its dynamic balance is critical. General propeller shaft balancing test should be carried out at the factory, and has been adjusted on the balancing machine. For front-engine rear-wheel drive vehicle is transmitted to the transmission rotation shaft to the final drive, which may be several sections, adjacent sections may be connected by a universal joint.

1. Noun drive shaft

is a high speed shaft, the rotating member supported less, so its dynamic balance is critical. General propeller shaft balancing test should be carried out at the factory, and has been adjusted on the balancing machine. For front-engine rear-wheel drive vehicle is transmitted to the transmission rotation shaft to the final drive, which may be several sections, adjacent sections may be connected by a universal joint.

2. The composition of shaft

axis by the drive shaft tube, and a telescopic joint composition. Telescopic automatically adjust change in the distance between the transmission and drive axle. Is to ensure that two joint axes angle change transmission output shaft and the input shaft drive axle and to achieve constant velocity drive two axes.

3. The telescopic shaft

configuration of a conventional telescopic shaft is a splined sleeve welded together with the flange yoke, the spline shaft is welded to the driveshaft tube. The new structure has changed the traditional drive shaft, the spline shaft and the sleeve welded into one pipe, the spline shaft is integrally formed with the flange yoke. And the large rectangular spline into short pressure angle involute line

splines, so as to enhance the strength and easy extrusion, large torque is required to adapt to operating conditions. Telescopic spline shaft sleeve and the dental surface, the overall coating layer of nylon soaked material, not only increases the wear resistance and self-lubricating properties, but also reduces the shock load damage to the drive shaft, to improve the buffering capacity.

Such an outer shaft flange spline shaft seal adds a tubular protective sleeve, the protective sleeve is provided two end portions of polyUrethane rubber seal, the telescopic sleeve is formed a completely sealed factory space, the telescopic splined shaft erosion from external dust, only the dust and rust. Therefore, when assembling the disposable apply grease to the spline shaft and the sleeve, completely meet the requirements, does not require lubrication nipple installed, reducing maintenance content.

4. The sleeve shaft

in order to reduce friction and wear during the movement of the shaft and designed, essentially no different from the use of the bearing, and relatively cheaper cost, but friction greater resistance, so that only the portion used for the member. Most of the sleeve are made of copper, but also made of plastic bushings. Multi-shaft bushing is placed in the supporting structure, and very close to the supporting structure, only the rotatable shaft in the hub. When assembling the shaft and sleeve, between the two will be added to a lubricant to reduce the friction generated during its rotation.

5. The drive shafts

● effect:

Usually a universal joint cross shaft, the cross and flange yoke bearings and other components. Universal joint is a key component in the automotive transmission. On the front-engine rear drive vehicle, drive shafts installed between the output shaft of the final drive of the transmission input shaft to the drive axle; the front-engine front-drive vehicle drive shaft is omitted, gimbal mounting in between both responsible for driving and responsible for steering axle and front axle wheels. Vehicle running road surface unevenness is generated in the beating, load change or difference in position two mounting assemblies, and the angle are such that the distance between the main shaft and the transmission output speed reducer drive axle input shaft is changed, so use a “change to strain device “to solve this problem, so there will be a universal joint.

● driving characteristics: on

In a front-engine rear-wheel drive (or all-wheel drive) vehicle, due to the deformation in automobile suspension movement, drive final drive input shaft and the transmission (or transfer case) often have a relative motion between the output shaft, in addition, to effectively avoid some mechanism or means (not achieve a straight line passing), there must be a means to achieve normal transmitted power , so it was a universal joint drive. Gimbal transmission must have the following characteristics:

a, to ensure the relative position of the two axes are connected at the expected range of variation can be reliably transmitted power;

b, ensure that the two connector uniformly operation shaft. Since the additional load generated by the gimbal angle, vibration and noise to be within the allowable range;

c, higher transmission efficiency, long life, simple structure, easy manufacturing, and easy maintenance. For the car, since the output shaft of a universal joint cross shaft relative to the input shaft (a certain angle) of rotation is not constant, this must double universal joint (or joint) transmission, and the two cardan shaft connected with the yoke disposed on the same plane, and that the angle section is equal to twenty thousand. This is very important. It should be designed to minimize the angle joint.

6. The use of the drive shaft

is mainly used in automotive transmission dedicated tanker, bowser, sprinkler, suction sewage truck, suction truck, fire engines, high pressure cleaning car, wrecker car, truck, garbage trucks and other vehicles on. .

The use and maintenance of the drive shaft 7

In order to ensure the normal operation of the drive shaft, extending its life, in use should be noted:

● non-high-speed car the start.

● non Meng lift the clutch pedal.

● non-automotive overloading, speeding.

● should always check the work status of the drive shaft.

● hanger should always check the tightness of the drive shaft, the supporting rubber is damaged, whether all joints Songkuang shaft, the drive shaft is deformed.

● To ensure dynamic balance of the drive shaft, a balance should always pay attention to whether the sealing off lug. The new support provided by a drive shaft assembly, the loading should be noted that the telescopic shaft assembly new marker sleeves should ensure a flange yoke in a plane. Disassembling the propeller shaft during maintenance, should telescopic shaft flangeMark on the printing assembly, the assembly holding the original time relationship for reuse assembly unchanged.

● often be universal joint cross bearings for lubrication, the summer should be injected into lithium grease No. 3, No. 2 winter lithium grease injection.

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