A jaw crusher is a primary crushing machine used in various applications, including mining, quarrying, and construction. It is designed to crush large rocks into smaller, more manageable sizes. The main components of a jaw crusher play critical roles in its operation and performance. we will discuss the primary components of a jaw crusher and their functions.
Frame:
The frame is the main structure of the jaw crusher, and it supports all other components.
It provides rigidity and strength to withstand the crushing forces.
The frame also houses the eccentric shaft and toggle plates.
Eccentric Shaft:
The eccentric shaft is a critical component that drives the movable jaw to move back and forth in a reciprocating motion.
It is mounted on the frame and rotates to create the crushing action.
The rotation of the eccentric shaft causes the movable jaw to move towards and away from the fixed jaw, crushing the material.
Movable Jaw:
The movable jaw is one of the two crushing surfaces in the jaw crusher.
It is attached to the eccentric shaft and moves in response to its rotation.
The material is fed into the crushing chamber between the movable jaw and the fixed jaw, where it is crushed.
Fixed Jaw:
The fixed jaw is the other crushing surface in the jaw crusher.
It is stationary and provides a surface against which the movable jaw crushes the material.
The gap between the fixed jaw and the movable jaw determines the size of the crushed material.
Toggle Plates:
Toggle plates are rugged steel plates that are used to secure the movable jaw to the frame.
They also transmit crushing force from the eccentric shaft to the movable jaw.
Toggle plates can be designed as single toggle or double toggle, depending on the crusher design.
Pitman:
The pitman is a connecting rod that connects the movable jaw to the eccentric shaft.
It helps to transmit motion from the eccentric shaft to the movable jaw.
The design of the pitman can affect the crushing capacity and efficiency of the jaw crusher.
Jaw crusher consists of several main components, including the frame, eccentric shaft, movable jaw, fixed jaw, toggle plates, pitman. These components work together to facilitate the crushing process by applying mechanical force to break down large rocks into smaller sizes, making them suitable for further processing or disposal. Proper maintenance and design considerations for these components are crucial to ensure the efficient and reliable operation of a jaw crusher.