News

In material crushing, especially in sand and gravel aggregate production equipment, crushing equipment is very important. There are many types of crushing equipment, and jaw crusher is a widely used equipment. It is used as the first pass of crushing, for primary crushing, to roughly crush large pieces of material.

The working principle of jaw breakage is not complicated. The electric motor drives the pulley through a belt, and the moving jaw moves up and down through an eccentric shaft to squeeze and crush the material. When the movable jaw rises, the angle between the elbow plate and the movable jaw increases, thereby pushing the movable jaw plate closer to the fixed jaw plate, and at the same time, the material is squeezed and crushed; As the electric motor continues to rotate, the crusher's jaw undergoes periodic motion to crush and discharge materials, achieving mass production. The content of fine powder and dust in crushing work is relatively low, and the impact on the environment is also low.

Jaws are widely used. Common materials such as granite and basalt not only have high hardness, but also strong abrasion resistance, making them unsuitable for crushing with hammers or counterattacks. The installation and debugging of gyratory fracturing are complex and the cost of use is high. Jaw fracturing has become a common choice, with high cost-effectiveness and simple maintenance. Jaw crusher is suitable for crushing various soft and hard materials, and is commonly used in mining, construction solid waste recycling, pre crushing under mines, etc., with significant crushing effects. In addition, jaw fractures are not only used in factories, but also extensively assembled on mobile stations.

Although jaw fracture appeared very early, its technology has been constantly improving and innovating with the times. Taking the CJ jaw fracture of Red Star Group as an example, the machine adopts a bolted frame, which is lightweight and detachable, avoiding the risk of stress concentration and greatly increasing its service life; As an important component, the movable jaw is made of high-quality alloy steel, and the elbow plate is made of high-strength steel plate, greatly reducing the thickness and weight of the elbow plate; In terms of design, CJ Jawbone adopts a deep V-shaped crushing chamber and a non blocking structure, greatly improving the material passing capacity.

The performance of jaw broken devices has been continuously optimized to adapt to various complex and unfavorable conditions, but regardless of the device, maintenance and upkeep should be taken into account during use.

1、 Precautions for use

Before starting, a comprehensive inspection of the equipment must be conducted. Check the wear condition of the broken toothed plate; Adjust the size of the ore discharge outlet; Check if there is any ore in the crushing chamber. If there are large pieces of ore, they must be removed; Check if the connecting bolts are loose, if the protective covers of the pulley and flywheel are intact, if the tension of the V-belt and tension rod spring is appropriate, if the oil level in the storage tank is full, if the electrical equipment and signal system are normal, etc.

2、 Maintenance and upkeep

1. Lubrication: Pay attention to the lubrication of equipment during the production operation of jaw breakage, just as people need face cream and hand cream, maintaining nourishment and lubrication can present a good state. Generally, the lubricating grease added to the bearing seat for jaw fractures is about 50% of its spatial volume, and should be replaced every 3-6 months. An appropriate amount of lubricating grease should be injected between the elbow plate and the elbow plate seat.

2. During the production process of dust removal and jaw crushers, a large amount of dust is generated, which can cause significant pollution. With the intensification of environmental policies in recent years, dust removal is an indispensable part. We can tailor it to different situations.

Jaw fracture is the first stage of fragmentation, and its production is directly related to downstream crushing and fine crushing. Choosing the right equipment is important, and necessary maintenance and upkeep are also essential in use to ensure stability and long-term success.