The Blake crusher, also known as the jaw crusher, is a type of crusher invented by British engineer Eli Whitney Blake in the early 19th century. It primarily consists of the following main components:

Jaw (Eccentric Shaft): The jaw is the outer shell of the crusher, typically made of sturdy metal construction, housing the crushing chamber. The bottom of the jaw forms a concave, bowl-like structure designed to accommodate the raw material.

Swing Jaw: The swing jaw is connected to the upper part of the jaw and can swing horizontally. It is the crucial component responsible for crushing and breaking down the raw material. The upper part of the swing jaw is often connected with a pair of adjustable plates used to regulate the outlet size of the crushing chamber.

Fixed Jaw Plate: The fixed jaw plate is located at the bottom of the crushing chamber and is an integral part of the jaw. It serves as the support point for the raw material and remains stationary.

Eccentric Shaft: The eccentric shaft is situated at the top of the jaw and is connected to the swing jaw. It drives the swinging motion of the swing jaw through rotational movement, thereby crushing the raw material.

Adjustment Mechanism: Blake crushers typically include an adjustment mechanism used to change the position of the swing jaw, controlling the outlet size of the crushing chamber. This can be achieved by adjusting the position of the plates to meet different material size requirements.

In summary, the structure of the Blake crusher is relatively simple, yet it possesses efficient crushing capabilities. It operates by utilizing the rotational movement of the eccentric shaft to enable the swing jaw to crush and break down the raw material within the crushing chamber. This design is widely applied in mining, construction, and metallurgical industries to achieve the desired particle sizes for various materials.

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