عمود محرك الجسر المركزي: تفكيك 10 الأجزاء المهمة لتحقيق أقصى موثوقية لمجموعة نقل الحركة

This technical guide provides a complete deconstruction of the عمود محرك الجسر المركزي تجميع FAW Jiefang CA3250P66K2L1T1E 6×4 تفريغ الشاحنة. سنقوم بتحليل 10 distinct types of serviceable components that create this critical link, which is essential for transferring torque from the inter-axle differential to the middle axle.

ال عمود محرك الجسر المركزي, also known as an inter-axle propshaft, is a high-speed, high-torque component. Its function is to connect the truck’s transfer case (or inter-axle differential) output to the input pinion of the first (middle) المحور الخلفي. This specific shaft is relatively short but must endure extreme angles and high rotational speeds, especially when the 6×4 axle lock is engaged. This deconstruction focuses on the serviceable units, providing a clear path for technicians to perform rebuilds and maintenance, which is crucial for maximizing vehicle uptime and ensuring the reliability of the tandem-axle system.

جوهر 1: ال “Articulation” منطق (The Universal Joint Assemblies)

The U-joint is the component that allows the عمود محرك الجسر المركزي to transmit power smoothly across constantly changing angles. This assembly uses two complete U-joints (one at each end), which are constructed from five key serviceable part types.

1. عنصر: ‘Cross and needle roller bearing assy’ (2205030B761) – الكمية 2
هذا (شركات 5) is the core of the U-joint, often called the cross or spider. It includes four precision-ground trunnions (الأسلحة) and four pre-packaged needle roller bearing caps. These caps are pressed into the yokes and retain the grease that is critical for smooth, low-friction articulation. Failure of these bearings is a primary cause of عمود محرك الجسر المركزي اهتزاز.

2. عنصر: ‘Flange yoke’ (2205023B761) – الكمية 2
هذا (شركات 2) is the flange that physically connects the U-joint to the vehicle’s flanges (على سبيل المثال, at the inter-axle differential and the middle axle pinion). ال عمود محرك الجسر المركزي assembly requires two of these, one for each U-joint.

3. عنصر: مجموعة السحابة (Q32914 & Q1851455T) – الكمية 8 كل
This group includes the ‘Type I non-metallic insert hex lock nut’ (شركات 1) and the ‘Hexagon flange bolt’ (شركات 3). هذا المنطق السحابي is a safety-critical system. The non-metallic insert in the nut provides prevailing torque, preventing the bolts from vibrating loose. This is essential for a high-RPM component like the عمود محرك الجسر المركزي.

4. عنصر: ‘Circlip’ (2205041-أ0م) – يختار 8
هذا (شركات 4) is a precision-fit circlip, or snap ring. The Bill of Materials (BOM) specifies ‘Select 8’ and lists multiple sub-part numbers (2205042-أ0م, 2205043-أ0م, إلخ.). هذا Selective Fit Logic is vital for assembly. A technician must select a circlip of a specific thickness to achieve the exact, minimal end-play for the U-joint bearing caps. Using the wrong thickness will lead to either immediate binding or premature failure from excessive movement.

جوهر 2: ال “Length & عزم الدوران” منطق (The Shaft Body Assembly)

This group of components forms the main body of the عمود محرك الجسر المركزي. It is responsible for handling the “plunge” (dynamic length change) as the axles articulate and for transferring the full torque load.

1. عنصر: ‘Rear axle drive shaft weld yoke, spline tube and yoke assy’ (2201015-51ب) – الكمية 1
هذا (شركات 8) هو العنصر الهيكلي الأساسي. It consists of the main driveshaft tube, which is permanently welded to a yoke at one end and a spline tube (an internal spline) at the other. هذا المنطق الملحومة is a design choice for maximum strength and rigidity. The welds ensure the yokes and tube act as a single piece, allowing them to transfer immense torque without failure. This is the backbone of the عمود محرك الجسر المركزي.

2. عنصر: ‘Spline shaft yoke assy’ (2205020B761) – الكمية 1
هذا (شركات 6) is the ‘slip yoke’. It is a yoke (which holds the other U-joint) that is permanently attached to a matching external spline shaft. This external spline is designed to slide, or plunge, in and out of the spline sleeve (شركات 8).

هذا Plunge Logic is essential for a tandem-axle truck. As the axles articulate over uneven terrain, the distance between them and the transfer case changes. This slip-yoke assembly allows the عمود محرك الجسر المركزي to change length dynamically. This prevents the assembly from binding and destroying the U-joints, transfer case bearings, or axle pinion bearings.

3. عنصر: ‘Grease nipple’ (CQ70001) – الكمية 1
هذا (شركات 7) is a standard ‘zerk’ مناسب. It is threaded into the slip-yoke assembly (شركات 6) to allow for periodic lubrication of the internal and external splines. Regular greasing is the most important maintenance step to prevent the splines from fretting, corroding, or seizing. A dry slip yoke is a common cause of عمود محرك الجسر المركزي فشل.

جوهر 3: ال “High-Speed Stability” منطق (The Balancing System)

This final component group is dedicated to a single, critical purpose: high-speed rotational stability. غير متوازن عمود محرك الجسر المركزي will cause destructive, harmonic vibrations throughout the entire vehicle.

1. عنصر: ‘Balance plate’ (2205071C6H & 2205071-أ0م) – الكمية حسب الطلب.
هذا (شركات 9 وشركات 10) are two different types of precisely weighted metal plates. The BOM lists multiple variations for each type and a quantity of ‘As Required’. This indicates the Dynamic Balancing Logic.

After the full عمود محرك الجسر المركزي is assembled, it is spun on a high-speed balancing machine. Electronic sensors detect micro-imbalances. A technician then spot-welds these balance plates (شركات 9 or Comp 10) onto the shaft body (شركات 8) to counteract any heavy spots.

This precision balancing is the final step in manufacturing and is essential for a smooth, vibration-free operation. A shaft that has lost a balance weight will cause immediate and severe vibration, which can quickly destroy seals, المحامل, and U-joints. وهذا يجعل عمود محرك الجسر المركزي a precision-tuned component.

عمود محرك الجسر المركزي: Complete 10-Part Serviceable Breakdown

الجدول التالي يوفر كامل, تفصيل مفصل للجميع 10 serviceable component types in the عمود محرك الجسر المركزي تجميع FAW Jiefang CA3250P66K2L1T1E 6×4 تفريغ الشاحنة. Components listed as ‘As Required’ or ‘Select’ are precision-fitting parts that must be chosen by the technician to meet build specifications.

المواصفات الأساسية

المواصفات لذلك عمود محرك الجسر المركزي are defined by its role as a high-torque, high-angle inter-axle connector. Understanding these specifications is key to ordering the correct assembly for the tandem-axle drivetrain.