مجموعة زنبركات الأوراق الأمامية FAW: تفكيك 46 مكونات التعليق الحرجة

مرحبًا بك في هذا الدليل الفني المهم حول مجموعة زنبركات الأوراق الأمامية FAW (الجزء لا. 2902010A50A). This is the complete front-end suspension system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 جرار نصف مقطورة ديزل. This assembly is responsible for supporting the entire weight of the cab, محرك, and transmission, while also absorbing road shock.

ال مجموعة زنبركات الأوراق الأمامية FAW هو واجب ثقيل, multi-leaf pack designed for durability and load-carrying capacity. إنه “منطق” هو توفير قوية, flexible connection between the solid front axle and the truck’s frame. It must be strong enough to prevent axle movement, yet flexible enough to provide a reasonable ride quality.

This in-depth guide is an essential resource for professional suspension technicians and fleet managers. سنقوم بتفكيك الكل مجموعة زنبركات الأوراق الأمامية FAW فيه 46 مكونات صالحة للخدمة, including the main spring pack, individual leaves, U-bolts, امتصاص الصدمات, and the critical stabilizer bar.

المكون الأساسي: The Main Spring Pack (2902010A50A)

قلب ال مجموعة زنبركات الأوراق الأمامية FAW is the ‘Front leaf spring assembly’ (2902010A50A), منها اثنان (one for the left and one for the right side). هذا هو الشيء الرئيسي “spring pack.” It is not a single piece of steel, but a carefully engineered stack of multiple “leaves” of high-carbon spring steel.

This multi-leaf design is the core “منطق” التابع مجموعة زنبركات الأوراق الأمامية FAW. يوفر أ “progressive” spring rate. When the truck is unladen, only the top, longer leaves flex, توفير أ (relatively) softer ride. As the truck is loaded, or when it hits a large bump, the load is transferred to the shorter, thicker leaves, dramatically increasing the stiffness and preventing the suspension from “bottoming out.”

This parts list breaks the pack down into its serviceable leaves, including the ‘Front leaf spring-first leaf’ (2902011A50A), ‘Front leaf spring-second leaf’ (2902012A50A), ‘Front leaf spring-third leaf’ (2902013A50A), and the ‘Hanger-rear spring eighth leaf’ (2912139-116). These leaves are all held together by the ‘Center bolt-front leaf spring’ (2902161-40أ) and are kept in alignment by ‘Clips’ (2902131-50أ).

نظام التركيب: U-Bolts and Shackles

ال مجموعة زنبركات الأوراق الأمامية FAW must be connected to the truck in two ways: it must be “hung” from the frame, and it must be “clamped” to the axle.

**1. لقط (U-Bolts):** The ‘U-bolt-front leaf spring’ (2902411-56B and 2902411-92V) units are the primary fasteners. These two large, U-shaped bolts loop *over* the axle and *through* a ‘Cover-front leaf spring’ (2902406-50أ). They are secured from below by the ‘Nut-fasten U-bolt’ (2902413-76أ) و "المكسرات السداسية."’ (CQ34114, CQ35010). هذا “u-bolt” assembly is what rigidly clamps the middle of the مجموعة زنبركات الأوراق الأمامية FAW to the axle, forcing the axle to move with the spring.

**2. Hanging (Shackles):** ال “عيون” (ينتهي) of the spring pack are attached to the chassis frame. The front eye bolts into a fixed “شماعات” (انظر التجمع 499). The rear eye attaches to a “تكبل” (a swinging link, not fully detailed here). هذا “تكبل” logic is what allows the مجموعة زنبركات الأوراق الأمامية FAW to get longer and shorter as it flexes.

منطق التخميد: Shock Absorbers (2905425-2000)

A spring, by itself, سوف “bounce” uncontrollably after hitting a bump. ال “التخميد” منطق ل مجموعة زنبركات الأوراق الأمامية FAW is provided by the ‘Lower left support bracket assy-front shock absorber’ (2905425-2000) and the ‘Lower right support bracket assy-front shock absorber’ (2905430-2000).

These are the heavy-duty brackets that mount the *bottom* of the shock absorbers to the front axle. The shock absorber (a hydraulic piston) works against the spring: as the spring compresses and rebounds, the shock absorber provides resistance, “التخميد” the oscillation and forcing the tire to stay in contact with the road.

Without these brackets, the shock absorbers cannot be mounted, and the truck would be dangerously unstable, “bouncing” after every bump. A crack in one of these brackets is a critical safety failure. This sub-assembly is a key part of the مجموعة زنبركات الأوراق الأمامية FAW‘s function.

Stability Logic: The Stabilizer Bar (2906444-50أ)

النهائي “منطق” التابع مجموعة زنبركات الأوراق الأمامية FAW is lateral stability, provided by the ‘Bracket-front lateral stabilizer’ (2906444-50أ). These two brackets are used to mount the truck’s “stabilizer bar” (يُعرف أيضًا باسم “anti-roll bar”) إلى الهيكل.

The stabilizer bar is a long, torsion-bar spring that connects the *left* side of the axle to the *right* side of the chassis. When the truck enters a corner, “body roll” causes the outside suspension to compress and the inside suspension to extend.

The stabilizer bar’s “منطق” is to resist this twisting motion. It transfers the force from the compressed (outside) spring to the extended (inside) ربيع, forcing the inside wheel down and “lifting” the outside of the cab. This action keeps the truck much flatter during cornering, which is a critical safety and handling feature. These brackets are the foundation for this system, making them a key part of the مجموعة زنبركات الأوراق الأمامية FAW.

Wear Items: وسادات, الحشيات, and Bushings

ال مجموعة زنبركات الأوراق الأمامية FAW is a high-friction, high-impact system. It relies on several “ذبيحة” wear items to protect the main components.

**’Damping pad-front leaf spring’ (2902137A50A):** The parts list calls for eight of these. These are small, hard polymer or nylon pads that are inserted *between* the ends of the individual spring leaves. كما مجموعة زنبركات الأوراق الأمامية FAW flexes, the leaves slide against each other. These pads prevent metal-on-metal “جرجر,” which would cause the springs to squeak and wear out prematurely.

**’Gasket-front leaf spring’ (2902211-50أ):** The six gaskets are “insulators,” likely placed between the U-bolt’s ‘Cover’ (2902406-50أ) and the spring pack, and between the axle seat and the spring pack, to provide a final layer of vibration damping and prevent metal-on-metal contact.

**’Bushing-rear leaf spring’ (2912121-03):** This is the bushing for the rear “عين” of the spring pack, where it connects to the shackle. This rubber bushing is designed to absorb the high-frequency vibrations from the road, preventing them from being transmitted into the مجموعة زنبركات الأوراق الأمامية FAW and the chassis.

FAW Front Leaf Spring Assembly Parts List

الجدول التالي يوفر كامل, تفصيل مفصل للجميع 46 components identified in the ‘Front Leaf Spring Assembly’ (502) رسم تخطيطي للجرار FAW CA4251P66K24T1A3E5. هذا مجموعة زنبركات الأوراق الأمامية FAW is the complete front axle suspension.

المواصفات الفنية وسياق التجميع

المواصفات ل مجموعة زنبركات الأوراق الأمامية FAW يتم تعريفها من خلال وظيفتها على أنها كاملة, heavy-duty suspension and damping system. كامل مجموعة زنبركات الأوراق الأمامية FAW is a safety-critical system.