Дополнительный блок правый нижний центральный вал: Деконструкция 4 Важные детали для безупречного привода ВОМ

Welcome to this in-depth deconstruction of the Дополнительный блок правый нижний центральный вал, a foundational component for the CA10TA160M 10-speed transmission in the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал. Это руководство предназначено для технических специалистов, анализируя 4 critical parts that form the complete Дополнительный блок правый нижний центральный вал сборка, which is essential for the auxiliary box’s “range-split” функция.

The Дополнительный блок правый нижний центральный вал is a high-torque countershaft for the auxiliary (Привет/Ло) gearbox. Its logic is to receive power from the main box and transmit it to the final output gears. This specific component also includes the provision “with PTO,” making it a critical link for powering auxiliary equipment like hydraulic pumps.

Основной 1: The “Вал & PTO Drive” Логика (The Core Assembly)

This component is the literal foundation of the Дополнительный блок правый нижний центральный вал сборка. It is a single, integrated part that provides the “водить машину” for the auxiliary gearbox and, решающе, the Power Take-Off.

1. Компонент: ‘Welded intermediate shaft assy – auxiliary box’ (1701515AA1K)
Этот (Комп 4) является основным компонентом. The name ‘Welded intermediate shaft assy’ (焊接中间轴总成) confirms it is a non-serviceable assembly. Это Дополнительный блок правый нижний центральный вал сам, and its gears are permanently welded to the shaft for maximum strength.

The Welded Logic is a design choice for extreme strength. Instead of using splines or keys that can shear under the immense, multiplied torque of the low-range gears, the manufacturer has welded the gear(с) directly to the shaft. This creates a single, solid piece of steel that can withstand the brutal forces of a fully-loaded dump truck. This is a hallmark of the Дополнительный блок правый нижний центральный вал.

The Логика промежуточного вала это его функция. Этот Дополнительный блок правый нижний центральный вал acts as the “countershaft” или “layshaft” for the auxiliary gearbox. It is part of a “twin-countershaft” система (вместе с “Left Upper” вал), which splits the power from the main box. This load-sharing is what gives the transmission its high torque rating.

The PTO Logic is the distinguishing feature of this specific Дополнительный блок правый нижний центральный вал. Примечание “(带取力器)” means “with Power Take-Off.” This implies that one of the welded gears on this shaft (Комп 4) является основным “drive gear” for the truck’s PTO.

Это очень важно: when the driver engages the PTO to run the hydraulic dump body, the PTO’s idler gear meshes with this specific gear on the Дополнительный блок правый нижний центральный вал. This allows the truck to be stationary (в нейтральном положении) while the clutch is engaged, spinning this shaft to power the hydraulic pump. The strength of this assembly is paramount.

Основной 2: The “Несущий & Поддерживать” Логика (Система крепления)

This group represents the complete bearing assembly that supports the Дополнительный блок правый нижний центральный вал. A high-load shaft like this, especially one driving a PTO, requires a bearing system that can handle massive, multi-directional forces.

1. Компонент: ‘Tapered roller bearing outer ring’ (306/42-1-1) – Кол-во 2
Этот (Комп 1) это “cup” или “outer race” of the bearing. Two of these are used, one for the front bearing and one for the rear. This cup is precision-machined and is pressed *into the bore* of the auxiliary gearbox housing, where it remains stationary. This is a high-wear part in the Дополнительный блок правый нижний центральный вал система.

2. Компонент: ‘Tapered roller bearing inner ring’ (306/42-1-2) – Кол-во 2
Этот (Комп 2) это “cone” или “внутреннее кольцо” of the bearing, which includes the tapered rollers in their cage. This cone is pressed *onto the journals* (заканчивается) принадлежащий Дополнительный блок правый нижний центральный вал (Комп 4) and spins with it.

The Tapered Roller Logic is the most important concept for this Дополнительный блок правый нижний центральный вал. Unlike a simple ball bearing, a tapered roller bearing is specifically designed to handle *both* massive radial loads (а “pushing” force from the gear mesh) and massive *axial* loads (а “thrust” force generated by helical-cut gears) *at the same time*.

The Opposed Mounting Logic is how they work. The two tapered bearings (Комп 1 + Комп 2) are mounted in “opposition” at the front and rear of the Дополнительный блок правый нижний центральный вал. This creates an extremely rigid assembly that can support the shaft against thrust forces in *both* directions (fore and aft), ensuring perfect gear mesh alignment under all load conditions, which is critical when the PTO is engaged.

The Service Logic is why they are listed as separate inner and outer rings. They are a “matched set” and must be replaced as one. A technician presses the outer rings into the housing and the inner rings onto the Дополнительный блок правый нижний центральный вал before final assembly.

Основной 3: The “Pre-load & Positioning” Логика (The Shim)

This final component is one of the most critical parts of the entire Дополнительный блок правый нижний центральный вал сборка. It is a single washer that ensures the longevity of the expensive bearings and shaft.

1. Компонент: ‘Positioning washer’ (1701518-A7G)
Этот (Комп 3) is the ‘Positioning washer’. In a tapered roller bearing application, this is not a simple washer; это “shim” или “gasket-shim.” Its thickness is precisely controlled, and its function is to set the “bearing pre-load.”

The Pre-load Logic is a high-precision assembly task. Tapered roller bearings cannot be “свободный” (with end play), nor can they be “too tight.” They require a specific, slight amount of “squeeze” или “предварительная загрузка” to function correctly and maximize their lifespan.

During assembly of the Дополнительный блок правый нижний центральный вал, a technician installs the components and measures the “end play” (the in-and-out movement) with a dial indicator. They then select a ‘Positioning washer’ (Комп 3) of the *exact* thickness required to eliminate that end play and add the correct, specified pre-load (НАПРИМЕР., 0.05мм).

This washer is often placed between a bearing’s outer ring (Комп 1) and the housing or bearing cover. Its thickness is the only thing that guarantees the correct pre-load for the bearings supporting the Дополнительный блок правый нижний центральный вал.

А Дополнительный блок правый нижний центральный вал with incorrect pre-load (НАПРИМЕР., a shim that is too thick or too thin) will suffer catastrophic bearing failure in a very short time. Too tight, and the bearings will overheat and seize. Too loose, and the shaft will “walk” axially, causing the gear teeth to misalign and destroying both the shaft (Комп 4) and the gears it meshes with. Поэтому, this ‘Positioning washer’ (Комп 3) является критическим, non-negotiable component for a successful gearbox rebuild.

Дополнительный блок правый нижний центральный вал: Полная разбивка на 4 части

В следующей таблице представлена ​​полная, подробная разбивка всех 4 типы компонентов в Дополнительный блок правый нижний центральный вал сборка для FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал.

Основные характеристики

Технические характеристики Дополнительный блок правый нижний центральный вал are defined by its role as a high-load, high-precision countershaft for the auxiliary gearbox, specifically featuring a PTO drive.