Detailed explanation of the functions of jaw crusher components

Jaw crusher application areas

The jaw crusher is a common mining crushing equipment, often used in the coarse crushing of ore materials. It has the characteristics of high efficiency, energy saving, large crushing ratio, simple structure, convenient maintenance, and low operating cost. It is widely used in mining, chemical, construction, metallurgy and other industries.

Jaw crusher structure

The jaw crusher is mainly composed of a frame, jaw plate, liner, eccentric shaft, bearing, flywheel, transmission device, adjustment seat, etc. Below, Xin Gao Naizhong will introduce the detailed functions of the jaw crusher components in detail.

Frame

The frame is the main part of the jaw crusher and supports the core components of the jaw crusher. The frame is made of high-strength and high-rigidity cast steel.

Jaw plate

The jaw plate is one of the most core components of the jaw crusher. It is made of high-manganese steel with high strength and good wear resistance, and can withstand greater pressure and impact. The jaw plate is divided into two parts: the movable jaw plate and the fixed jaw plate. The upper end of the movable jaw plate is suspended on the eccentric shaft, and the fixed jaw plate is fixed on the frame. The motor drives the eccentric shaft through the transmission device to make the movable jaw plate move back and forth. The movable jaw plate forms an angle with the fixed jaw plate. When the movable jaw plate moves back and forth, the material is squeezed, rubbed, and crushed to crush the material.

Liner

The liner is mainly used to protect the wear-resistant parts of the jaw plate inside the fuselage. It is divided into two types: movable liner and fixed liner. The fixed liner is installed on the fixed jaw plate, and the movable liner is installed on the movable jaw plate to reduce the wear of the jaw plate during the crushing process. The liner is mainly made of alloy steel, high manganese steel, cast iron, etc.

Eccentric shaft

The eccentric shaft is one of the core components of the jaw crusher and an important component of the transmission system. The eccentric shaft, also known as the main shaft, supports the movable jaw, pulley and flywheel, withstands torsion, bending and other effects, and completely controls the movement trajectory of the movable jaw plate. The eccentric shaft is mainly made of high-quality cast steel material, which has the characteristics of high toughness and fatigue resistance.

Bearing

The bearing is mainly used to support the rotation and movement of various components and is one of the core components of the jaw crusher. The bearing bears the gravity and movement force of moving parts such as the eccentric shaft and the movable jaw plate, reducing the friction and wear generated during movement. It is mainly made of alloy steel with good wear resistance, high precision and high strength.

Flywheel

The flywheel is installed at one end of the eccentric shaft to balance the weight of the groove wheel and store energy. When the jaw crusher is running, idling causes the motor load to be unbalanced. In order to balance the motor load, the energy of the idling stroke is stored, and this part of energy will be released during crushing to enhance the crushing force. In addition, the flywheel also has stability and reliability, which can reduce equipment vibration and noise.

Transmission device

The transmission device is used to drive the jaw plate to move, and is mainly composed of a motor, a pulley, a gear, a reducer, etc. The operating efficiency of the transmission device directly affects the production capacity and life of the jaw crusher. The transmission belt is made of a rubber material with high strength and good wear resistance.

Adjustment block

The adjustment block is controlled manually or hydraulically, and is mainly used to adjust the distance between the liner and the jaw plate, control the particle size of the crushed material, and meet the crushing requirements of different materials.

In general, each component of the jaw crusher plays an irreplaceable role. Due to the different designs and matching of these components, the efficient crushing principle of the jaw crusher is formed. Regular maintenance and protection of these components can extend the life of the jaw crusher and increase production efficiency.

Author:[Xingaonai]

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