D155-5 bulldozer parts protective cover frame cover 17A-30-17122

D155-5 Bulldozer Parts Protective Cover Frame Cover 17A-30-17122

The protective cover frame cover for the bulldozer track system is a protective device specifically designed for the bulldozer's walking mechanism. It is primarily used to prevent collisions and wear from external hard objects such as stones and rocks on critical components of the track system (e.g., track rollers, tension cylinders, body bolts), thereby extending equipment lifespan and reducing maintenance costs.

Main Functions and Features

Protective Function: The cover is typically installed on both sides of the blade, using an umbrella-shaped or frame structure to disperse external impact forces, effectively reducing the frequency of direct contact between stones and machine parts. For example, the protective cover designed by Zhuneng Group for the D11T bulldozer can push stones to a distance of 0.5 meters from the machine body, significantly reducing collision damage.

Materials and Manufacturing Process: The cover is mostly made of high-strength wear-resistant materials (such as DC53 steel), and undergoes processes such as cutting, grinding, and heat treatment to ensure a robust and durable structure. Some protective covers also offer dustproof, waterproof, and sun protection functions, adapting to complex outdoor environments.

Economic Benefits: These protective covers are relatively inexpensive but significantly reduce maintenance downtime. For example, after installing protective covers on a D11T bulldozer, it is estimated that annual maintenance cost savings will exceed 500,000 yuan.

Application Scenarios: Mining operations: Used for protection when bulldozers are operating on hard surfaces such as rock and coal seams. Construction sites: Prevents sand and rainwater from entering the track system, delaying component aging.