What are the parts of gyratory crusher?

Main Shaft
The sturdy central component of the gyratory crusher is the primary shaft. It serves as the primary support structure for the entire crusher and channels its energy to operate the mantle in an eccentric motion. Typically, the main shaft is crafted from carbon steel that has been forged, though high-quality alloys are also utilized in some crushers.

 

Mantle
The concave and mantle are both vital components of the main shaft, but they differ in terms of speed and functionality. While the concave remains stationary, the mantle rotates at a faster pace. Its main role is to effectively break down and crush rocks that make their way into the crushing chamber. With the crushing process exerting significant strain, the mantle is specifically designed to endure this wear and tear. However, it is important to regularly replace the mantle to maintain optimal efficiency in the crushing operation. By doing so, the crushing chamber can continue to effectively fragment rocks and achieve the desired results.

 

Concave
The mantle is encompassed by the concave, a resilient curved surface typically constructed from high-strength steel. Its primary purpose is to endure and counteract the compressive forces generated during the crushing process. By providing a suitable crushing surface, it enables the mantle to effectively crush and regulate the size of the material being crushed.

 

Spider Arm
The spider arm is a significant component as it connects the concave to the main shaft. Its primary responsibility is to distribute the impact caused by crushing forces uniformly across the concave while holding the weight of the mantle. Usually made of cast steel or iron, the spider arm undergoes wear and tear over time, necessitating periodic replacement.

 

Eccentric Assembly
The primary purpose of the eccentric assembly is to facilitate the gyratory motion of the mantle by utilizing both a gear and a shaft. The gear and shaft are interconnected through a key, ensuring that the rotational force is efficiently transmitted to the mantle. This clever design not only enables the mantle to move in a uniform crushing motion but also helps to minimize wear and tear on both the concave and the mantle itself. By incorporating the eccentric assembly into the system, the crushing process becomes more efficient and reliable, leading to enhanced performance and extended durability.

 

Bottom Shell
The foundation of the gyratory crusher is the bottom shell. This crucial component acts as a sturdy support structure that holds the entire crusher in place. Typically crafted from cast steel, it's built to withstand the immense forces generated during the crushing process. The bottom shell is also home to the hydraulic cylinder that manages the adjustment of the crusher's discharge setting, making it a vital part of the equipment.

 

To sum it up, the gyratory crusher is a sophisticated piece of machinery that relies on the optimal functioning of a multitude of vital parts. It is crucial for operators to have a thorough understanding of the individual functions and interdependencies of each component to ensure maximum productivity and minimal downtime. By properly maintaining and repairing their crushers, operators can achieve greater efficiency, reliability, and longevity of their equipment.