Half shaft introduce

Driver Shaft, also known as CVJ, CV joint, constant velocity joint, is a shaft that transmits torque between the gearbox reducer and the drive wheel. It has a U-joint at the inner and outer ends, which is connected to the reducer gear and the inner ring of the hub bearing through splines on the U-joint [2] The half shaft is the shaft that transfers torque between the gearbox reducer and the drive wheel (previously mostly solid, but due to the uneven rotation control of the hollow shaft, many cars use hollow shafts). It has a universal joint (U/JOIN) at the inner and outer ends, which is connected to the reducer gear and the inner ring of the hub bearing through splines on the universal joint. There are two types of half shafts commonly used in modern cars, full floating and semi floating, depending on their support types (There are also three types, namely fully floating. 3/4 floating and semi floating.) The fully floating half axle only transmits torque and does not withstand any reaction force or bending moment. When combined with independent suspension, it is beneficial to improve vehicle comfort and is widely used in various types of cars. The fully floating half axle is easy to disassemble, and during maintenance and repair, the half axle can be removed by simply unscrewing the fixing bolts of the half axle, while the wheels and axle housing can still support the car, Thus, it brings convenience to car maintenance. The semi floating half axle not only transmits torque but also bears all reaction forces and bending moments. Its supporting structure is simple and low in cost, mainly suitable for pickup trucks and SUVs that do not require high comfort requirements. However, this type of half axle support is difficult to remove, and if the half axle breaks during driving, it is easy to cause the risk of wheels flying off, which is a form that is about to be phased out)

Steps for disassembling and installing the rear axle half shaft of a car

The steps for disassembling and assembling the rear axle half shaft of a car are as follows: 1. Lift the car and support it reliably. Remove the rear suspension swing arm bolts; 2. Remove the fixing bolts and covers of the outer cross shaft universal joint, and remove the fixing bolts and covers of the inner cross shaft universal joint; 3. Slide the half shafts together, do not apply too much force, remove the half shafts, do not let them hang vertically, to prevent damage to the universal joint bearings caused by impact; 4. Check if the universal joint assembly is worn or damaged, and if necessary, replace the universal joint; 5. When installing the rear axle half shaft, first install the half shaft onto the inner universal joint. The diameter of the inner half shaft is larger than that of the outer half shaft. Install the universal joint fixing cover and fixing bolts, and tighten the bolts with the corresponding torque. Note: Make sure to use Loctite glue on the universal joint fixing bolts; 6. Install the half shaft onto the outer universal joint, install the universal joint fixing cover and fixing bolts, and tighten the bolts with the corresponding torque; 7. Install the rear suspension swing arm and tighten the bolts to the corresponding torque

Buick Excelle XT introduce

The Buick Excelle XT is more fashionable and sporty, with a focus on home use. The Buick Excelle XT's stylish two box sporty appearance is loved by many young people, while the Buick Excelle GT is a three box car that leans more towards home use from the inside out and is no longer as flamboyant. It can be said that the launch of the Excelle GT has expanded the audience of the Excelle series trains. The overall design of the Excelle GT three box car is more oriented towards home use, with a more stable appearance compared to two boxes. From the perspective of appearance, The GT tends to be the popular mid size Buick LaCrosse, also known as the "Little LaCrosse". The Excelle XT is generally more sporty, and from the front face, there is a certain difference between the two cars. The front of the Excelle GT is more rounded and thick, while the Excelle XT has a "steel cannon temperament", full of fashion and sportiness. The headlight design of the Excelle GT is more regular than that of the XT, and the eyes are not as sharp as the XT. The bright and lively upward sloping headlights integrate the width indicator lights, low beam lights, high beam lights, and corner turning lights, The large three shield emblem is embedded on the wide waterfall style air intake grille. The Yinglang GT has two additional gill shaped heat sinks on the engine compartment cover, adding some embellishments to the engine compartment cover. The Yinglang GT has a smooth side shape, which is very in line with people's aesthetic of family cars. After adding one more compartment, the body proportions are still coordinated The shape of the triangular window on the C-pillar has slightly changed compared to the XT. Compared to the Excelle hatchback XT, the roof of the Excelle GT is more protruding, so the rear headroom will be more comfortable