The understanding of the main components of the jaw crusher can make the operator better understand the structure of the machine and better complete the maintenance of these main components. Here is to introduce the main components of the jaw crusher.
The frame of the jaw crusher is a four-wall rigid frame with upper and lower openings, which is used to support the eccentric shaft and bear the reaction force of the crushed materials. Therefore, the frame of the jaw crusher requires sufficient strength and rigidity. Generally, cast steel is used as a whole. casting. For small racks, high-quality cast iron can be used instead of cast steel. Large racks need to be cast in sections and then firmly connected to a whole by bolts. The casting process is complicated, but due to the importance of racks, every link in the manufacturing stage must be strictly followed request to proceed.
For the jaw crusher, the crushing of materials is inseparable from the movable jaw and the fixed jaw, and the jaw plate and the jaw bed are important components of the movable and fixed jaw. The jaw plate is fixed on the jaw bed with bolts and wedges. The jaw bed of the jaw is the front wall of the frame, and the movable jaw bed is suspended on the periphery, and must have sufficient strength and rigidity to withstand the crushing reaction force. Therefore, most of them are cast steel or cast iron. If there is a problem with the jaw plate or side guard plate of the jaw crusher, the production cannot be carried out.
For jaw crusher, the eccentric shaft is its main shaft, which is subjected to huge bending and torsion force in production, so its manufacture is mostly completed with high carbon steel. The eccentric part must be finished, heat treated, and the bearing bush is cast with babbitt alloy, so as to ensure the service life of the part. In addition, inside the jaw crusher, one end of the eccentric shaft is equipped with a pulley, and the other end is equipped with a flywheel.
For jaw crusher, its adjustment devices mainly include wedge type, backing plate type and hydraulic type, etc. Generally, wedge type is used, which is composed of two wedges, front and rear. The front wedge can move back and forth to withstand the back push plate. The rear wedge is an adjusting wedge, which can move up and down. The inclined surfaces of the two wedges are inversely attached, and the rear wedge is moved up and down by the screw to adjust the size of the discharge port. For small jaw crushers, the discharge The adjustment of the mouth is realized by increasing or decreasing the number of spacers between the rear thrust plate support and the frame.
For jaw crushers, the main function of the flywheel is to store the energy during the empty stroke of the movable jaw. The flywheel is often made of cast iron or cast steel. The flywheel of a small machine is often made into an integral type. , need to pay attention to the problem of static balance.
When the jaw crusher is working, lubrication is mainly to reduce the wear and tear of the parts during production, and it can also take away part of the heat generated by the equipment, which has a great effect on production.
The article mainly introduces the main parts of the jaw crusher. We mainly analyze the six parts of the machine, namely the frame, the jaw plate and the side guard plate, the eccentric shaft, the adjusting device, the flywheel and the lubricating device. The role of these components in production. For these parts, not only the manufacturing process is very important, but also the usual maintenance. The integrity of these parts can ensure the smooth working process of the jaw crusher.