With the rapid development of the mining industry in recent years, mining equipment industry has gradually been driven up. Beneficiation plants, coal preparation plant and other industries generally use the small and medium – sized crusher equipment before developed to a certain scale. However, the production capacity of the small and medium-sized crusher cannot meet the demand of production due to the growing capacity of various industries. With the strong demand of large crusher equipments from the factories, large jaw crusher came into being.
Jaw crusher has characteristics of high crushing ratio, simple structure, uniform granulation, reliable running performance, easy maintenance and low cost, which is widely used in mining, smelting, construction, highway, railway, water conservancy and chemical industries. It’s used for crushing various ores & stones with compressive strength less than 320 MPa.
Among the mining equipments, large jaw crusher has a great production capacity. The jaw crusher produced by Henan Cheng Mining Co., Ltd. reached to a top class at home and abroad, which is mainly used for medium grain crushing of various minerals and bulk materials. The jaw crusher can be used for crushing various ores & stones with compressive strength less than 320 MPa, including two crushing ways medium and fine crushing. This series product has complete specifications, with a feeding granularity of 125mm ~ 750mm, which is the first choice for crushing equipment. Jaw crusher is widely used in mining, metallurgy, building materials, highway, railway, water conservancy and chemical industries.
Structure of Jaw Crusher
Jaw crusher is mainly composed of a frame, an eccentric shaft, a large belt wheel, a flywheel, a movable jaw, a side guard plate, an elbow plate, a back of elbow plate, an adjusting screw, a reset spring, a fixed jaw plate and a movable jaw plate, while the elbow plate plays a role of insurance. The crushing modes of this series jaw crusher include a curved type, electric motor and belt pulley, making the movable jaw move upwards and downwards through the eccentric shaft. When the movable jaw moves upward, the angle between the elbow plate and the movable jaw becomes bigger thus the movable jaw plate moves closer to the fixed jaw plate and the materials are squeezed, twisted and grinded at the same time. When the movable jaw moves down, the angle between the elbow plate and the movable jaw the plate becomes smaller. The movable plate leaves the fixed jaw plate under the effect of the pull rod and spring, and then the crushed materials discharge from the crushing cavity. The batch production is realized with the periodic crushing and discharging by the continuous rotating of electric motor.
