Задняя подвеска ФАВ: Критический фокус на 35 Компоненты 6×4 Трансмиссия

Добро пожаловать в это важное техническое руководство по Задняя подвеска ФАВ сборка (Сборка 509). Это полный, сверхмощный “tandem-axle” suspension system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This is the assembly that handles the entire payload and provides traction.

The Задняя подвеска ФАВ является а “логика” system known as a “balance beam” или “trunnion” приостановка. Its design is critical for a 6×4 трактор, as it is engineered to articulate and “ходить” over uneven terrain, ensuring all eight rear wheels remain in contact with the ground for maximum traction and load distribution.

This in-depth guide is an essential resource for professional chassis technicians, менеджеры автопарка, и специалисты по запчастям. Мы разберем всю Задняя подвеска ФАВ в свой 35 типы обслуживаемых компонентов, including the ‘Rear leaf spring assembly’, the ‘Balance suspension bracket’, the ‘Thrust rods’, and the vast array of high-tensile fasteners that hold this high-stress system together.

Основной компонент: The ‘Rear Leaf Spring Assembly’ (2912010-2000)

Сердце Задняя подвеска ФАВ is the ‘Rear leaf spring assembly’ (2912010-2000). The list calls for two of these—one for each side of the truck. Unlike a front suspension, this is an “inverted” leaf pack. The “пакет” consists of multiple leaves of high-carbon spring steel, such as ‘Rear leaf spring-first leaf’ (2912011-2000) through ‘Rear leaf spring-fourth leaf’ (2912014-2000).

The “логика” этого Задняя подвеска ФАВ is completely different from the front. The center of this spring pack (held by ‘Center bolt-rear leaf spring’ 2912161-70А) rests on the ‘Balance suspension bracket’ (trunnion), which is the central pivot point on the chassis. The *ends* of the spring pack rest on the two rear drive axles.

Это создает “walking beam” эффект. When the front-most drive axle hits a bump, it pushes *up* on the front of the spring pack; этот, по очереди, forces the *back* of the spring pack *down*, pushing the rear-most drive axle onto the ground. Этот “ходьба” articulation is the core logic of the Задняя подвеска ФАВ, ensuring constant, maximum traction for both axles.

The “Логика”: ‘Balance Suspension Bracket’ (цапфа)

The central pivot for this “ходьба” Задняя подвеска ФАВ is the ‘Balance suspension bracket’ сборка (см. сборку 499). This is the heavy-duty bracket that mounts to the truck’s frame rail. The parts in this list are what attach the leaf spring *to* that trunnion.

The ‘Balance suspension bracket pin upper/lower cover’ (2918041-1057, 2918046-1057) and ‘Bushing-balance suspension bracket pin’ (2918042-242) form the “несущий” that the leaf spring pack pivots on.

The ‘Cover-balance suspension bracket spring’ (2918072-1050) это “cap” that holds the spring pack down onto this trunnion. Весь этот “логика” assembly is what allows the inverted ‘Rear leaf spring assembly’ to pivot in the center, creating the “walking beam.” This is the most critical pivot point in the entire Задняя подвеска ФАВ.

Axle Connection: U-Bolts and Thrust Rods

The Задняя подвеска ФАВ must not only support weight, but it must also hold the two drive axles in perfect alignment. This is done by two systems.

**1. U-образные болты:** The ‘U-bolt-fasten rear leaf spring’ (2912411-70А) единицы (4 общий) are what “зажим” the axles *to* the ends of the leaf spring packs. They pass through the ‘Cover-rear leaf spring’ (2912406-1057) and are secured by the eight ‘Nut-fasten U-bolt’ (2912413-5ЧАС). This is the primary vertical connection.

**2. Thrust Rods:** Leaf springs are not strong enough to handle the immense acceleration and braking torque (which tries to “крутить” the axle). This is the job of the “упор” (или “torque rod”) система. Этот Задняя подвеска ФАВ parts list includes the ‘Upper front/rear connecting rod with rubber bushing’ (2919005-242, 2919015-242) and the ‘Lower front/rear connecting rod with rubber bushing’ (2919010-242, 2919020-242).

Этот “логика” создает “four-link” system for each axle. These four rods (two upper, two lower) form a rigid “коробка” that connects the axle directly to the frame, forcing it to stay perfectly aligned. The ‘Support-upper reaction rod and vehicle frame connecting’ (2919111-2000) is the chassis-side bracket for these rods. This thrust rod system is the “логика” that handles all the acceleration and braking forces, leaving the Задняя подвеска ФАВ leaf springs to simply handle the vertical load.

Критические крепежи: The 100+ Piece Hardware Set

The Задняя подвеска ФАВ это сильный стресс, high-vibration assembly held together by over 100 специализированный крепеж. A single failed bolt here could be catastrophic.

**SPL Self-Locking Nuts (T327-series):** The parts list calls for a total of **52** ‘SPL hex small flange lock nuts’ (Т32718TF2, Т32720TF2, Т32724TF2). Это “логика” of a modern, high-safety Задняя подвеска ФАВ. Это “Stover” или “преобладающий крутящий момент” контргайки. The top of the nut is intentionally crimped or deformed, creating an “elastic” lock that grips the bolt threads. This makes them *immune* to vibration and *must* be used for all critical connections, especially on the thrust rods.

**Flange Bolts (Q185-series):** The list calls for over 40 «Болты с шестигранной головкой’ (Q1851875T, Q1851850T, Q1852060T, Q1852090T, Q1851860T). The “фланец” head acts as an integrated washer to spread the clamping load. The “Т” suffix denotes a high-tensile (НАПРИМЕР., 10.9) сила, essential for handling the shear forces of the Задняя подвеска ФАВ.

**Flange Nuts (C039714):** The 12 ‘Hex flange nuts’ provide a wide, secure clamping base for other non-locking-nut applications. This comprehensive, over-engineered fastener set is the “логика” что обеспечивает Задняя подвеска ФАВ stays intact under the most extreme conditions.

FAW Rear Suspension Parts List (1/2)

В следующей таблице представлена ​​первая часть подробной разбивки по Задняя подвеска ФАВ (509) схема трактора FAW CA4251P66K24T1A3E5.

FAW Rear Suspension Parts List (2/2)

В этой таблице подробно описаны остальные компоненты для Задняя подвеска ФАВ, focusing on the thrust rod system and fasteners.

Технические характеристики и контекст сборки

Технические характеристики Задняя подвеска ФАВ определяются по своей функции как сверхмощное, tandem-axle “walking beam” приостановка. The Задняя подвеска ФАВ is a comprehensive system for load-bearing and traction.