نظام التعليق الخلفي فاو: التركيز النقدي على 35 مكونات 6×4 نظام الدفع

مرحبًا بك في هذا الدليل الفني المهم حول نظام التعليق الخلفي فاو حَشد (حَشد 509). هذا هو الكامل, الثقيلة “tandem-axle” suspension system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 جرار نصف مقطورة ديزل. This is the assembly that handles the entire payload and provides traction.

ال نظام التعليق الخلفي فاو هو “منطق” system known as a “balance beam” أو “المبرم مرتكز الدوران” تعليق. Its design is critical for a 6×4 جرار, as it is engineered to articulate and “يمشي” 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, مديري الأسطول, ومتخصصين في قطع الغيار. سنقوم بتفكيك الكل نظام التعليق الخلفي فاو فيه 35 أنواع المكونات الصالحة للخدمة, 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.

المكون الأساسي: The ‘Rear Leaf Spring Assembly’ (2912010-2000)

قلب ال نظام التعليق الخلفي فاو 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. ال “pack” 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).

ال “منطق” من هذا نظام التعليق الخلفي فاو is completely different from the front. The center of this spring pack (held by ‘Center bolt-rear leaf spring’ 2912161-70أ) rests on the ‘Balance suspension bracket’ (المبرم مرتكز الدوران), which is the central pivot point on the chassis. The *ends* of the spring pack rest on the two rear drive axles.

هذا يخلق “شعاع المشي” تأثير. When the front-most drive axle hits a bump, it pushes *up* on the front of the spring pack; هذا, بدوره, forces the *back* of the spring pack *down*, pushing the rear-most drive axle onto the ground. هذا “المشي” articulation is the core logic of the نظام التعليق الخلفي فاو, ensuring constant, maximum traction for both axles.

ال “منطق”: ‘Balance Suspension Bracket’ (Trunnion)

The central pivot for this “المشي” نظام التعليق الخلفي فاو is the ‘Balance suspension bracket’ حَشد (انظر الجمعية 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 “تحمل” that the leaf spring pack pivots on.

The ‘Cover-balance suspension bracket spring’ (2918072-1050) هو “كاب” that holds the spring pack down onto this trunnion. هذا بأكمله “منطق” assembly is what allows the inverted ‘Rear leaf spring assembly’ to pivot in the center, إنشاء “walking beam.” This is the most critical pivot point in the entire نظام التعليق الخلفي فاو.

Axle Connection: U-Bolts and Thrust Rods

ال نظام التعليق الخلفي فاو 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-Bolts:** The ‘U-bolt-fasten rear leaf spring’ (2912411-70أ) وحدات (4 المجموع) are what “المشبك” 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’ (2912413-5ح). 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 “تطور” the axle). This is the job of the “قضيب التوجه” (أو “torque rod”) نظام. هذا نظام التعليق الخلفي فاو 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).

هذا “منطق” يخلق أ “four-link” system for each axle. These four rods (two upper, two lower) form a rigid “صندوق” 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 “منطق” that handles all the acceleration and braking forces, leaving the نظام التعليق الخلفي فاو leaf springs to simply handle the vertical load.

السحابات الحرجة: ال 100+ Piece Hardware Set

ال نظام التعليق الخلفي فاو هو ارتفاع الضغط, high-vibration assembly held together by over 100 specialized fasteners. 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’ (T32718TF2, T32720TF2, T32724TF2). هذا هو “منطق” of a modern, high-safety نظام التعليق الخلفي فاو. هذه هي “ستوفر” أو “عزم الدوران السائد” قفل المكسرات. 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.

**مسامير شفة (Q185-series):** The list calls for over 40 'مسامير شفة سداسية’ (Q1851875T, Q1851850T, Q1852060T, Q1852090T, Q1851860T). ال “شفة” head acts as an integrated washer to spread the clamping load. ال “ت” suffix denotes a high-tensile (على سبيل المثال, 10.9) قوة, essential for handling the shear forces of the نظام التعليق الخلفي فاو.

**Flange Nuts (C039714):** ال 12 ‘Hex flange nuts’ provide a wide, secure clamping base for other non-locking-nut applications. This comprehensive, over-engineered fastener set is the “منطق” that ensures the نظام التعليق الخلفي فاو stays intact under the most extreme conditions.

FAW Rear Suspension Parts List (1/2)

يعرض الجدول التالي الجزء الأول من التقسيم التفصيلي لـ نظام التعليق الخلفي فاو (509) رسم تخطيطي للجرار FAW CA4251P66K24T1A3E5.

FAW Rear Suspension Parts List (2/2)

يوضح هذا الجدول المكونات المتبقية لل نظام التعليق الخلفي فاو, focusing on the thrust rod system and fasteners.

المواصفات الفنية وسياق التجميع

المواصفات ل نظام التعليق الخلفي فاو يتم تعريفها من خلال وظيفتها باعتبارها الثقيلة, tandem-axle “شعاع المشي” تعليق. ال نظام التعليق الخلفي فاو is a comprehensive system for load-bearing and traction.