Sand and gravel crushing machinery is also called sand and gravel crusher, which can be used for coarse, medium and fine crushing of various ores and rocks with a compressive strength of 147-245MPa. In recent years, in order to meet the needs of crushing high-strength and high-hardness crushing in metallurgy, mining, construction and other industrial sectors, our factory not only has a large crushing ratio, but also uses a new generation of domestic high-strength wear-resistant materials for the wearing parts, which has low loss and long service life. Long, can bring considerable economic benefits to customers, currently there are many types of stone crushing machinery and equipment on the market, and the most commonly used one is the jaw crusher.
The working principle of sand and gravel crusher
It adopts the crank extrusion type working method, the working principle is: the motor drives the belt and the pulley, and the movable jaw moves up and down through the eccentric shaft. When the movable jaw rises, the angle between the toggle plate and the movable jaw becomes larger, thereby pushing the movable jaw plate Approaching the fixed jaw plate, the material is crushed or chopped at the same time to achieve the purpose of crushing.
When the movable jaw moves down, the angle between the toggle plate and the movable jaw becomes smaller, and the movable jaw leaves the fixed jaw under the action of the pull rod and the spring, and the crushed materials are discharged from the lower opening of the crushing chamber. With the continuous rotation of the motor, the movable jaw of the crusher will do periodic motion to crush and discharge the materials, realizing mass production.
Performance advantages of sand and gravel crusher
- Equipped with a wedge discharge port adjustment device, which is simpler, more stable and quicker than the old-fashioned shim adjustment. Of course, the size of the discharge opening can also be manually adjusted by increasing or decreasing the number of gaskets, which has strong flexibility.
- Compared with other crushers of the same specification, the eccentric shaft bearing is larger and more durable. Its higher load capacity and effective labyrinth seal greatly extend the service life of the bearing.
- The product is in the shape of a cube, with low needle flake content, no internal cracks, and a good product shape.
- Not only the structure has been optimized, but the system has been upgraded by 3 times. Extended wearing parts, long service life, easy maintenance and repair.
