Eixo central esquerdo FAW J6P: Desconstruindo 15 Peças críticas para divisão de torque perfeita

Welcome to this specialized deconstruction of the Eixo central esquerdo FAW J6P, a core component within the CA10TA160M gearbox for the FAW Jiefang CA3250P66K2L1T1E 6×4 caminhão despejando. Este guia técnico analisa o 15 components that create the complete Eixo central esquerdo FAW J6P, also known as a countershaft, which is fundamental to the gearbox’s torque-handling capability.

O Eixo central esquerdo FAW J6P is one half of a “twin-countershaft” ou “dual-countershaft” projeto. This advanced gearbox logic splits the engine’s torque into two paths (left and right shafts). This dramatically reduces the load on each individual gear tooth, allowing the transmission to handle the massive, low-speed torque required by a fully-loaded dump truck.

Essencial 1: O “Haste & Keyway” Lógica (The Core Spine)

This group represents the foundation of the Eixo central esquerdo FAW J6P. It includes the shaft itself and the various keys used to permanently lock the drive gears onto it, ensuring the entire assembly spins as one solid unit.

1. Componente: ‘Centre shaft’ (1701211-A7G)
Esse (Comp. 3) is the ‘Centre shaft’ em si, the spine of the assembly. É um único, eixo para serviço pesado, precision-machined and forged from hardened steel to be extremely rigid and resistant to torsional (twisting) forces.

O Torque Splitting Logic is its core purpose. Como o Eixo central esquerdo FAW J6P, it runs parallel to the mainshaft and an identical “Right Centre Shaft.” It receives approximately 50% of the power from the input shaft gear and is in constant, permanent mesh with the “dirigido” gears on the mainshaft.

2. O “Key” Grupo (Comp. 4, 5, 6)
Este grupo inclui: ‘Woodruff key’ (Comp. 4), 'Pino cilíndrico de mola’ (Comp. 5), and ‘Flat key’ (Comp. 6). These are all “locating keys” used to fix the gears to the Eixo central esquerdo FAW J6P.

O Lógica de bloqueio é a função deles. The drive gears (like Comp 7, 8, 9) are not “free-spinning”; they must be rigidly locked to the Eixo central esquerdo FAW J6P. A ‘Woodruff key’ (Comp. 4) is a half-moon shaped key that sits in a crescent-shaped slot, locking a gear hub in place. A ‘Flat key’ (Comp. 6) é um simples, strong key for a straight slot. A ‘Spring pin’ (Comp. 5) is a vibration-proof pin, likely used to secure a gear collar.

Essencial 2: O “Main Drive Gear” Lógica (The Gear Set)

This is the primary “trabalhando” parte do Eixo central esquerdo FAW J6P. These are the fixed gears that provide the “drive” torque to the mainshaft’s “dirigido” engrenagens.

1. O “Main Gears” (Comp. 7, 8, 9)
Este grupo inclui: ‘Segunda marcha – centre shaft’ (Comp. 7), ‘Terceira marcha – centre shaft’ (Comp. 8), e ‘Quarta marcha – centre shaft’ (Comp. 9). Observação: In this design, “Primeira marcha” e “Reverter” are often handled by the ‘Reduction gear’ or a separate idler, not this main stack.

O Constant Mesh Logic é a chave. Unlike the mainshaft gears (which spin freely), all gears on the Eixo central esquerdo FAW J6P are *fixed* to the shaft (Por exemplo, by the keys in Core 1). They spin as one single, solid unit.

This means when the engine turns the Eixo central esquerdo FAW J6P, all these gears (2nd, 3terceiro, 4th) are spinning at the same RPM. The driver selects a gear by locking the corresponding “dirigido” engrenagem (on the mainshaft) to the mainshaft, which completes the power path for that specific ratio.

2. Componente: ‘Reduction gear – centre shaft’ (1701217-A7G)
Esse (Comp. 11) is the ‘Reduction gear’. This is likely the main “entrada” gear of the Eixo central esquerdo FAW J6P, which meshes with the ‘First Axis’ (eixo de entrada) engrenagem.

Isso é Reduction Logic is to provide the first, main gear reduction in the entire gearbox. It multiplies the torque *before* it even gets to the 2nd/3rd/4th gears, providing the massive “grunt” ou “pulling power” needed for a dump truck. It is secured on the shaft by its own ‘Snap ring’ (Comp. 12).

Essencial 3: O “Power Take-Off” Lógica (The PTO Gear)

This component’s logic is to provide a “tocar” ou “take-off” point for the engine’s power, allowing it to run auxiliary equipment, which is essential for a dump truck.

1. Componente: ‘PTO gear – centre shaft’ (1701246-A7G)
Esse (Comp. 10) is the ‘Power Take-Off Gear’. This gear is also fixed to the Eixo central esquerdo FAW J6P and spins constantly with it (anytime the clutch is engaged).

O Hydraulic Logic is its application. This gear (Comp. 10) is what meshes with the idler gear of the PTO unit (which is bolted to the side of the gearbox housing). When the driver engages the PTO, this gear transmits the engine’s power *out* of the gearbox to run the hydraulic pump for the dump body.

Its position on the Eixo central esquerdo FAW J6P é crítico. Because this shaft spins whenever the clutch is engaged (even when the main gearbox is in neutral), it allows the dump truck to be stationary but still use the engine’s power to run the hydraulic pump and raise the dump bed.

Essencial 4: O “Consequência & Retention” Lógica (The Mounts)

This final group is responsible for supporting the entire Eixo central esquerdo FAW J6P conjunto, holding it in its precise location and allowing it to spin smoothly under immense radial and axial loads.

1. O “Consequência” Grupo (Comp. 2, 13)
Isso inclui: ‘Cylindrical roller bearing’ (Comp. 2) and ‘Cylindrical roller bearing with stop ring’ (Comp. 13). These are the main bearings for the Eixo central esquerdo FAW J6P, supporting it at the front and rear of the gearbox case.

O Roller Bearing Logic is used for its superior strength. Unlike ball bearings, roller bearings have a larger contact patch, making them ideal for handling the extremely high *radial* loads (o “pushing” force between gears) inside a heavy-duty gearbox. The ‘stop ring’ on Comp 13 is a snap ring on the *outer* race, qual “locates” the bearing in the housing bore.

2. O “Retention” Grupo (Comp. 1, 12, 14, 15)
Este grupo inclui: ‘Snap ring – centre shaft rear bearing’ (Comp. 1), ‘Snap ring – reduction gear’ (Comp. 12), ‘Baffle plate – centre shaft front bearing’ (Comp. 14), and ‘Hexagon head bolt with guide neck’ (Comp. 15).

O Axial Control Logic é a função deles. The ‘Snap rings’ (Comp. 1, 12) fit into grooves on the Eixo central esquerdo FAW J6P itself to lock bearings or gears (like the ‘Reduction gear’, Comp. 11) no lugar, preventing any “axial” (in-and-out) movement.

O Baffle Plate Logic (Comp. 14) é crítico. This plate, held by the ‘Hexagon head bolt’ (Comp. 15), acts as a “retainer” for the front bearing (Comp. 13). It also functions as an “oil slinger” ou “baffle,” directing lubricating oil into the bearing race while also preventing excessive “respingo” from reaching the front seal. This entire group ensures the Eixo central esquerdo FAW J6P stays perfectly positioned.

Eixo central esquerdo FAW J6P: Complete 15-Part Breakdown

A tabela a seguir fornece o completo, detalhamento de todos 15 tipos de componentes no Eixo central esquerdo FAW J6P montagem para o FAW Jiefang CA3250P66K2L1T1E 6×4 caminhão despejando.

Especificações principais

As especificações para o Eixo central esquerdo FAW J6P are defined by its role as one of two “countershafts” in a high-torque, twin-countershaft gearbox design.