Приводной вал центрального моста FAW: Почему эти 9 Критически важные детали являются ключом к производительности трансмиссии

Добро пожаловать в это важное техническое руководство по Приводной вал центрального моста FAW. Это полный “inter-axle” driveshaft assembly for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This component is the vital link that completes the “6×4” capability, connecting the first drive axle to the second.

The Приводной вал центрального моста FAW (Часть №. 2205060A91W) is responsible for transmitting 100% of the torque from the “вперед” drive axle’s output yoke to the “задний” drive axle’s input yoke. This short, high-torque shaft must operate at extreme angles while handling the full, multiplied torque of the engine.

This in-depth guide is an essential resource for professional driveline technicians, менеджеры автопарка, и специалисты по запчастям. Мы разберем всю Приводной вал центрального моста FAW сборка в свой 9 исправные компоненты, including the main shaft, the universal joints, the critical “slip joint,” and the precision shims required for balancing.

Основные компоненты: The Shaft and Yokes

The Приводной вал центрального моста FAW assembly is comprised of several core forged-steel components. The main shaft is the ‘Inter-axle driveshaft tube, welding fork & spline sleeve assy’ (2205015-91Вт). Это “bone” of the assembly, a hollow, high-strength steel tube that is precision-welded and dynamically balanced. It is designed with a “welded fork” on one end and a “spline sleeve” on the other.

The ends of the Приводной вал центрального моста FAW are the yokes, which connect to the axles and the U-joints:

• **’Flange yoke’ (2205023Б761):** Это “фланец” end that bolts directly to one of the axle’s input/output flanges.
• **’Splined yoke assy’ (2205020Б761) & (2205050Б761):** Эти “splined” yokes are the key to the “slip joint.” The “женский” splines on the yoke slide over the “male” splines on the main shaft (2205015-91Вт).

Этот “slip joint” is a critical part of the Приводной вал центрального моста FAWлогика. As the truck’s suspension compresses and rebounds, the distance between the two drive axles changes. This slip joint allows the Приводной вал центрального моста FAW to expand and contract like a telescope, preventing this movement from destroying the transmission or axle bearings. A worn or “лязг” slip joint is a common failure point, usually from a lack of grease.

The “Логика”: Universal Joint (U-Joint) Сборка (2205030Б761)

The “логика” принадлежащий Приводной вал центрального моста FAW is its ability to transmit full rotational power at an angle. This is achieved by the ‘Cross & needle bearing assy’ (2205030Б761), also known as the Universal Joint or “U-joint.” The parts list calls for two of these, one for each end of the shaft.

Этот компонент представляет собой “double hinge.” It consists of a central “cross” или “spider” with four precision-ground, hardened steel arms (trunnions). Each arm is fitted with a “cap” that contains dozens of small “needle roller bearings.” These four caps are then secured into the “yokes” of the driveshaft and the axle flange.

This design allows the Приводной вал центрального моста FAW к “сгибать” up, down, левый, и правильно, perfectly accommodating the constant movement of the drive axles as the truck’s suspension articulates over rough terrain.

These U-joints are the primary wear item in any Приводной вал центрального моста FAW. They operate under immense torque and must be periodically greased. If the needle bearings run dry, they will be destroyed by friction, ведущие к “chirping” или “squeaking” noise that is tied to road speed. If ignored, this will become a “clunk” (as the cross slams back and forth) and will eventually lead to a catastrophic failure of the Приводной вал центрального моста FAW, which can sever air and fuel lines or even puncture the transmission housing.

Precision Alignment: Shims (по требованию) and Circlips

The final components of the Приводной вал центрального моста FAW are the precision alignment parts. The parts list calls for 8 ‘Circlips’ (2205041-AOM through 2205048-AOM) and multiple sets of ‘Shims’ (2205081-AOM series and 2205071-AOM series).

The ‘Circlips’ are the snap-rings that are used to retain the U-joint’s bearing caps within the yokes. The fact that there are 8 different part numbers for 8 circlips indicates that these are **selective fit** circlips. This means they come in minutely different thicknesses. A technician must use these to perfectly center the U-joint “cross” within the yoke, preventing any side-to-side “play” that would cause vibration.

The ‘Shims’ (marked “по требованию” – “as needed”) are even more critical. These are paper-thin, precision-cut shims used for **dynamic balancing**. During manufacturing, the complete Приводной вал центрального моста FAW is spun on a balancing machine. The machine detects tiny “heavy spots,” and the technician adds these shims (often under the U-joint caps) to achieve perfect balance.

It is **critically important** to never lose, mix up, or fail to reinstall these shims. Removing even one of these “as needed” shims will destroy the shaft’s balance, leading to a severe vibration that can only be fixed by having the entire Приводной вал центрального моста FAW re-balanced by a driveline specialist.

FAW Central Bridge Drive Shaft Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 9 component groups identified in the ‘Central Bridge Drive Shaft’ схема трактора FAW CA4251P66K24T1A3E5. Этот Приводной вал центрального моста FAW is a precision-balanced assembly.

Технические характеристики и контекст сборки

Технические характеристики Приводной вал центрального моста FAW определяются своей функцией как высокомоментный, high-speed, flexible power transmission shaft. Этот Приводной вал центрального моста FAW is a precision-balanced component.