- Чанчунь город, Провинция Цзилинь, Китай
к 
This is a technical deconstruction of the Приводной вал заднего моста, a vital drivetrain component for the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал. В этом руководстве подробно описаны 9 serviceable parts that ensure reliable power transmission from the gearbox to the differential, which is essential for heavy-haul operations and off-road durability.
The Приводной вал заднего моста is not a single part but a complex, high-speed, dynamically balanced assembly. Its primary function is to transmit the engine’s rotational power across a variable angle and distance from the gearbox to the rear axle differential. В 6×4 dump truck like the CA3250P66K2L1T1E, this component endures immense stress, constant changes in angle due to suspension travel, and high-speed rotation. This breakdown focuses on the serviceable aspect, identifying the individual components that can be replaced during a standard rebuild or repair, which is essential for cost-effective fleet maintenance.
The universal joint, or U-joint, is the heart of the Приводной вал заднего моста assembly’s ability to articulate. This assembly allows the shaft to spin smoothly even as the rear axle moves up and down with the suspension. This specific driveshaft uses two complete U-joint assemblies, one at each end. This articulation is managed by a group of four key components working in unison.
1. Компонент: ‘Cross and needle roller bearing assy’ (2201030-1050) – Кол-во 2
Этот (Комп 5) is the central cross or spider. Each of its four arms, or trunnions, is a precision-ground journal designed to fit into a bearing cap. This assembly includes the four needle roller bearing caps that are pressed into the yokes. When this part fails, it typically results in significant driveline vibration or distinct audible noises during acceleration. Replacing it is a standard part of overhauling the Приводной вал заднего моста.
2. Компонент: ‘Flange yoke’ (2201023-80А) – Кол-во 2
Этот (Комп 2) is the yoke that physically bolts to the differential pinion flange and the transmission output flange. These yokes are secured by ‘Hexagon flange bolts’ (Комп 3, Кол-во 8) and ‘Type I non-metallic insert hex lock nuts’ (Комп 1, Кол-во 8).
Этот Логика крепления это критическая система безопасности. The non-metallic insert in the nut (Комп 1) provides prevailing torque. This prevents the fasteners from backing off under the constant, high-frequency vibration inherent in a heavy-duty drivetrain. Using standard nuts and bolts without this locking feature would lead to catastrophic failure of the Приводной вал заднего моста.
3. Компонент: ‘Circlip’ (2201041-80А) – Выбирать 8
Этот (Комп 4) is arguably the most critical component for U-joint longevity, functioning as a precision shim. These are the circlips, or snap rings, that lock the U-joint’s bearing caps (from Comp 5) into the yokes (Комп 2 and Comp 6).
The Bill of Materials (спецификация) specifies ‘Select 8’ and lists multiple sub-part numbers (2201042-80А, 2201043-80А, и т. д.). Этот Selective Fit Logic имеет решающее значение. It means these circlips come in a range of precise thicknesses. A technician must assemble the joint and then select the correct thickness of circlip to achieve the precise, minimal end-play specified by the manufacturer. This selection process ensures there is no lateral movement, which would otherwise hammer the needle bearings to failure. This is a high-precision step in servicing the Приводной вал заднего моста.
This group of components forms the main body of the Приводной вал заднего моста. It is responsible for two functions: spanning the required distance between the transmission and the axle, and handling the dynamic length change required by the truck’s suspension.
1. Компонент: ‘Rear axle drive shaft weld yoke and spline sleeve assy’ (2201015-80А) – Кол-во 1
Этот (Комп 7) является основным структурным компонентом. It consists of the main driveshaft tube, which is permanently welded to a yoke at one end (for one of the U-joints) and a spline sleeve (an internal spline) at the other.
Этот Welded Logic is a design choice for extreme strength and rigidity. The welds ensure the yokes and tube act as a single piece. This allows them to transfer immense torque without slipping, shearing, or breaking away from the tube under the extreme loads of a fully-loaded dump truck. This permanent bond is the backbone of the Приводной вал заднего моста.
2. Компонент: ‘Spline shaft yoke assy’ (2201020-80А) – Кол-во 1
Этот (Комп 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 (Комп 7).
Этот Plunge Logic is essential for any vehicle with a live-axle suspension. As the CA3250P66K2L1T1E’s rear axle articulates over bumps and terrain, the distance between the fixed transmission and the moving differential changes constantly. This slip-yoke assembly allows the Приводной вал заднего моста to lengthen and shorten dynamically, preventing the assembly from binding and destroying itself, the transmission bearings, or the differential pinion bearings.
3. Компонент: ‘Straight type grease nipple’ (CQ70001) – Кол-во 1
Этот (Комп 8) is a small but functionally vital part. It is a standard zerk fitting that is threaded into the slip-yoke assembly (Комп 6) to allow for periodic lubrication. Technicians must pump chassis grease into this fitting as part of a regular maintenance schedule. This grease is the only thing protecting the male and female splines (Комп 6 and Comp 7) from fretting, коррозия, and grinding themselves into dust. Сухой, unlubricated slip yoke is a common cause of Приводной вал заднего моста clunking and eventual failure.
This final component group is dedicated to a single, critical purpose: high-speed rotational stability. Вдоль, heavy rotating mass like this Приводной вал заднего моста will cause destructive, harmonic vibrations if it is not perfectly balanced, much like a vehicle’s tire and wheel assembly.
1. Компонент: ‘Balance plate’ (2201071-1ЧАС) – Кол-во по требованию.
Этот (Комп 9) это маленький, precisely weighted metal plate. The BOM lists multiple variations (2201072-1ЧАС, 2201073-1ЧАС, и т. д.) and a quantity of ‘As Required’. This indicates the Балансирующая логика.
After the entire Приводной вал заднего моста assembly is assembled, it is placed on a high-speed dynamic balancing machine. The machine spins the shaft at operational speed and electronic sensors detect any tiny imbalance or heavy spot along its length.
The technician then spot-welds these ‘Balance plates’ (Комп 9) of a specific weight onto the driveshaft tube (Комп 7) at specific locations to counteract the heavy spots. This process is essential for a smooth, vibration-free operation at highway speeds. Несбалансированный Приводной вал заднего моста will quickly destroy U-joints, transmission seals, and pinion bearings.
В следующей таблице представлена полная, подробная разбивка всех 9 serviceable component types in the Приводной вал заднего моста сборка для FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал. Note that components listed as ‘As Required’ or ‘Select’ are precision-fitting parts that must be chosen by the technician to meet build specifications.
| Отметка | Часть №. | Наименование | Количество |
|---|---|---|---|
| 1 | Q32914 | Type I non-metallic insert hex lock nut | 8 |
| 2 | 2201023-80А | Flange yoke | 2 |
| 3 | Q1851450T | Шестигранный фланцевый болт | 8 |
| 4 | 2201041-80А | Circlip (See sub-parts 2201042~48-80A) | Выбирать 8 |
| 5 | 2201030-1050 | Cross and needle roller bearing assy | 2 |
| 6 | 2201020-80А | Spline shaft yoke assy | 1 |
| 7 | 2201015-80А | Rear axle drive shaft weld yoke and spline sleeve assy | 1 |
| 8 | CQ70001 | Смазочный ниппель прямого типа | 1 |
| 9 | 2201071-1ЧАС | Баланс тарелка (See sub-parts 2201072~79-1H) | As Required |
Спецификации для этого Приводной вал заднего моста are defined by its role as a high-torque, high-angle driveline component for a heavy-duty dump truck application. Understanding these specifications is key to ordering the correct assembly.
| Приложение для автомобиля | FAW Цзефан CA3250P66K2L1T1E 6×4 Самосвал |
| Системная группа | Приводной вал заднего моста |
| Первичная логика | Transmit torque from transmission to rear differential |
| Основной компонент (Вал) | ‘Rear axle drive shaft weld yoke and spline sleeve assy’ (2201015-80А) |
| Основной компонент (Соединение) | ‘Cross and needle roller bearing assy’ (2201030-1050) |
| Articulation Type | Universal Joint (U-Joint), исправный |
| Length Compensation | Spline shaft ‘Slip Yoke’ (2201020-80А) |
| Balancing Method | ‘Balance plate’ (2201071-1ЧАС) – Сварной, As Required |
| U-Joint Pre-load | ‘Circlip’ (2201041-80А) – Selective Fit |
| Lubrication Point | ‘Straight type grease nipple’ (CQ70001) for splines |
| Total Serviceable Component Types | 9 |
| Связанная система | Трансмиссия / Главный мост |
Запчасти ФАВ, включая блок цилиндров в сборе, тщательно упакованы, чтобы обеспечить безопасную доставку. Каждый компонент закреплен защитными материалами для предотвращения повреждений при транспортировке.. Логистическая сеть гарантирует своевременную доставку по всему миру., поддержка эффективных операций по техническому обслуживанию. Ниже приведено изображение, иллюстрирующее стандартную упаковку запчастей для грузовиков FAW., демонстрация внимания к деталям в обращении и хранении.
Такой подход к упаковке сводит к минимуму риск коррозии или ударного повреждения., обеспечение доставки таких деталей, как блок цилиндров FAW в сборе, в идеальном состоянии.. Клиенты могут положиться на логистику FAW для обеспечения стабильного качества и надежности..
FAW — один из старейших и крупнейших производителей автомобилей в Китае., с уставным капиталом в юанях 35.4 млрд юаней и общие активы юаней 457.83 миллиард юаней.
КИТАЙСКАЯ ГРУППА FAW CO., ООО. (сокращение от FAW), бывший Китайский первый автомобильный завод, можно проследить его корни до июля 15, 1953, когда началось строительство первого сборочного завода. FAW — один из старейших и крупнейших производителей автомобилей в Китае., с уставным капиталом в юанях 35.4 млрд юаней и общие активы юаней 457.83 миллиард юаней.
Продажи тяжелых грузовиков в Китае по всему миру “пять подряд”, продажи тяжелых грузовиков по всему миру “шесть подряд”, продажа тракторов для 16 годы подряд абсолютный лидер отрасли.
