Корпус центрального моста FAW, Полуоси и сквозной логический узел: Почему эти 18 Критические детали имеют значение

Добро пожаловать в это важное техническое руководство по Корпус центрального моста FAW, Полуоси и сквозной логический узел. Это полный “вперед” или “middle” drive axle for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This is the core component that makes the “6×4” drive system possible.

The Корпус центрального моста FAW, Полуоси и сквозной логический узел это комплекс, “through-drive” ось. Его “логика” is to perform two functions simultaneously: first, it receives power from the main driveshaft and sends it to its own wheels via the ‘Half-Shafts’. Второй, it passes that power *through* its differential carrier via the ‘Through-Shaft’ to the rearmost drive axle.

This in-depth guide is an essential resource for professional driveline technicians and parts specialists. Мы разберем всю Корпус центрального моста FAW, Полуоси и сквозной логический узел в свой 18 исправные компоненты, including the main ‘Centre axle housing’, the ‘Left’ и «Правильно’ half-shafts, and the critical ‘Through-shaft’ bearing and seal assembly.

Основной компонент: The ‘Centre Axle Housing’ (2501010BA6T)

Основа Корпус центрального моста FAW, Полуоси и сквозной логический узел is the ‘Centre axle housing assembly’ (2501010BA6T). This is the main structural component, often called the “банджо” или “carrier.” It is a massive, high-strength casting, typically made of ductile cast iron, designed to handle the entire weight of the tractor’s rear and its cargo, as well as the immense torque loads from the driveline.

This housing performs three critical functions. Первый, это “скелет” that provides the mounting points for the truck’s suspension. Второй, it is the rigid “случай” that holds the differential (the ring and pinion gearset) in perfect, precision-machined alignment. Третий, it acts as the “axle tubes,” extending outwards to hold the wheel hub bearings.

A crack or bend in this Корпус центрального моста FAW, Полуоси и сквозной логический узел (НАПРИМЕР., from an impact or overloading) is a catastrophic, vehicle-ending failure. Its structural integrity is paramount.

The “Half-Shafts”: Левый (2503081-A6T) & Верно (2503082-A6T)

The “Half-Shafts” components of the Корпус центрального моста FAW, Полуоси и сквозной логический узел are the ‘Centre axle left half-shaft’ (2503081-A6T) and the ‘Centre axle right half-shaft’ (2503082-A6T). Это “ось” themselves. They are solid, forged shafts made from an incredibly tough and ductile steel alloy (like 4340 chromoly), designed to twist slightly under extreme torque without breaking.

These are **full-floating** axles. This is a critical design feature for a heavy-duty truck. In this system, the axle shafts “float” inside the housing. Their *only* job is to transmit torque from the differential to the wheels. They do *not* support the weight of the vehicle. The vehicle’s weight is supported by the ‘Centre axle housing assembly’ сам, via the large wheel hub bearings.

Этот “full-float” design means that if a Корпус центрального моста FAW, Полуоси и сквозной логический узел‘s shaft were to break, the wheel *will not fall off* the truck. The shafts are splined on their inner end (to engage with the differential’s “side gears”) and flanged on their outer end, where they are secured to the wheel hub by the 20 «Болты с шестигранной головкой’ (Q1851650TF2K). The reason for a separate “Левый” и “Верно” half-shaft is simply their different lengths to accommodate the central differential.

The “Through-Shaft Logic”: Powering the 6×4

The most critical “логика” принадлежащий Корпус центрального моста FAW, Полуоси и сквозной логический узел это “Through-Shaft.” This is what makes it a “centre” (или “middle”) ось. This system allows the main driveshaft to send power *through* this axle to the rearmost axle.

This is achieved with several key components:

• **’Through-shaft’ (2502161-А9Т):** This is the main shaft that passes *through* the differential carrier, driven by the pinion.
• **’Centre axle output flange assembly’ (2502165-A6T):** This is the flange splined to the *end* of the through-shaft, where the inter-axle driveshaft (см. сборку 326) connects.
• **’Tapered roller bearing assembly’ (2502040-A6T-C00):** This massive bearing supports the through-shaft, handling the immense radial and axial loads.

This bearing is held in place by the ‘Bearing cap-through-shaft’ (2502168K5H) and its ‘Gasket-bearing cap’ (2502169К5ХБ1). This entire sub-assembly is then sealed by the ‘Through-shaft oil seal assembly’ (2502170-А8Т-С00) and its ‘O-ring’ (CQ7345475C), which are critical for preventing gear oil from leaking out the back of the Корпус центрального моста FAW, Полуоси и сквозной логический узел. Этот “pass-through” design is the core of the 6×4 drivetrain’s logic.

Услуга, Уплотнение, and Fasteners

The Корпус центрального моста FAW, Полуоси и сквозной логический узел is designed for heavy-duty service. It includes three critical service plugs:

• **’Oil filler plug’ (2401051-A0R):** The “fill” и “level check” port.
• **’Inner hex tapered magnetic screw plug’ (Т62104М):** The “drain” затыкать. Its magnet is a key diagnostic tool, as it traps metal particles from wear, indicating the health of the Корпус центрального моста FAW, Полуоси и сквозной логический узел.
• **’Breather plug’ (Т905):** This essential vent prevents pressure from building up in the housing as it heats, which would blow out the ‘Through-shaft oil seal’ (2502170-А8Т-С00) and wheel seals.

The system is sealed with ‘Gasket rings’ (CQ72324T5) for the plugs. The entire assembly is held together with high-tensile fasteners. The 20 «Болты с шестигранной головкой’ (Q1851650TF2K) are for the axle shafts, while ‘Hex head bolts’ (CQ1501445), ‘Spring gaskets’ (Q40314), and the ‘Nut-pinion shaft bearing’ (2402071K5H) are used to secure the bearing caps and through-shaft flange. This robust hardware is essential for the reliability of the Корпус центрального моста FAW, Полуоси и сквозной логический узел.

Корпус центрального моста FAW, Half-Shafts And Through-Shaft Logical Assembly Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 18 components identified in the ‘Centre Axle Housing, Полуоси и сквозной логический узел’ схема трактора FAW CA4251P66K24T1A3E5.

Технические характеристики и контекст сборки

Технические характеристики Корпус центрального моста FAW, Полуоси и сквозной логический узел are defined by its complex, multi-part design as a load-bearing, “through-drive” ось.