In material crushing, especially in sand and gravel aggregate production equipment, crushing equipment is a very important equipment. There are many types of crushing equipment. Jaw crusher is a very widely used equipment. It is used for the first pass of crushing. In primary crushing, the bulk materials are roughly crushed.
The working principle of the jaw crusher is not complicated. The motor drives the pulley through the belt, and the movable jaw moves up and down through the eccentric shaft to squeeze the crushed material. When the movable jaw rises, the angle between the toggle plate and the movable jaw becomes larger, thereby pushing the movable jaw plate to approach the fixed jaw plate, and the material is squeezed and crushed at the same time; when the movable jaw goes down, the angle between the toggle plate and the movable jaw becomes smaller , The movable jaw plate leaves the fixed jaw plate under the action of the pull rod and the spring, and the crushed materials are discharged from the lower opening of the crushing cavity. With the continuous rotation of the motor, the crushing jaws do periodic motion to crush and discharge materials to achieve mass production. The content of fine powder and dust in the crushing work is relatively low, and the impact on the environment is also low.
Jaw crushers are widely used. Common materials such as granite and basalt are not only high in hardness, but also highly abrasive. They are not suitable for hammer crushing or impact crushing. The installation and debugging of Gyratory Crushers are complicated and the cost of use is high. Jaw crushing has become a common choice. High, and easy to use and maintain. Jaw crushers are suitable for crushing various soft and hard materials. Common application fields include mining, construction solid waste recycling, pre-crushing under mines, etc. The crushing effect is remarkable. In addition, jaw crushers are not only used in factories, but also assembled on mobile stations in large numbers.
Although the jaw crusher appeared very early, its technology has been developing and progressing with the times, constantly improving and innovating. Taking Bellian Group's CJ jaw crusher as an example, the bolted frame is adopted, the whole machine is light and disassembled, which avoids the risk of stress concentration and greatly increases the service life. As an important part, the movable jaw is made of high-quality alloy steel. , The bracket adopts high-strength steel plate, which greatly reduces the thickness and weight of the bracket; in terms of design, the CJ jaw crusher adopts a deep V-shaped crushing cavity and a non-blocking structure, which greatly improves the material passing capacity.
Jaw Crusher
The equipment performance of the jaw crusher has been continuously optimized to adapt to the use under various complex and unfavorable conditions, but no matter what equipment is used, attention should be paid to maintenance during use.
1. Precautions for use:
The equipment must be thoroughly inspected before start-up. Check the wear of the crushing tooth plate; adjust the size of the ore discharge port; check whether there is ore in the crushing cavity, if there is a large piece of ore, it must be taken out; Check whether the tension of the pull rod spring is appropriate, whether the oil storage tank is full, whether the electrical equipment and signal system are normal, etc.
2. Maintenance:
①Lubrication, attention should be paid to the lubrication of the equipment in the production operation of jaw crusher, just like people need face cream and hand cream, keep nourishing and lubricating to show a good state. Generally, the grease added to the bearing seat of the jaw crusher is about 50% of its space volume, and is replaced every 3-6 months. An appropriate amount of grease should also be injected between the bracket and the bracket seat.
② Dust removal, a large amount of dust will be generated during the production process of the jaw crusher, which will cause greater pollution. With the tightening of environmental protection policies in recent years, dust removal is an indispensable link. We can do it for different situations.
Jaw crusher is the first process of crushing. The production of jaw crusher is directly related to the downstream secondary crushing and fine crushing. It is very important to choose the right equipment, and the necessary maintenance in use is also indispensable, so that the operation can be stable and far-reaching.
