Crusher is the discharge of more than three millimeters in the size of the total discharge of more than 50% of the crushing machinery. Broken operations often according to the size of the feed and discharge size is divided into coarse, broken and crushed. Commonly used crusher jaw crusher, impact crusher, hammer crusher, composite crusher, cone crusher and so on several.
1. Hammer crusher working principle
Hammer crusher working principle is driven by the motor, the crusher rotor high-speed rotation. Material into the crusher, immediately by the impact of high-speed rotation of the hammer and crushed. After the broken material by the hammer of the hammer to the chassis of the high-speed impact of the liner and grate by the second broken. Less than the grate of the material will be discharged from the gap, the larger pieces of the material in the crushing chamber continue to be the impact of hammer until broken, through the grate bar gap.
Single rotor hammer crusher mainly by the box, turntable, shaft, hammer, grate, adjust the frame and the coupling and other components.
Hammer crusher shell is welded with steel plate box structure, along the axis of the center into the upper and lower parts, during which the connection by the bolts, the top of the chassis to the feed port. In order to avoid the inner wall of the box under the impact of the material under the impact of wear and deformation, the cabinet are set with protective liner inside. Turntable has a triangle and round two, triangular turntable three edges easy to wear, if not found in time, easy to fall hammer, its life is not as round turntable. In the turntable wearing a mandrel, hammer through the mandrel were staggered on the turntable, the hammer between the isolation sleeve isolation.
When the rotor rotates at high speed, the hammer crushes the material under centrifugal force. The shaft is supported by both ends of the shaft, and the bearing housings are mounted on both sides of the box and are fixed with bolts. The grate bars are arranged on the grate frame with the rotor shaft as the center, and the grate frame is fixed to the box by bolts. The lower part of the box is equipped with two eccentric shafts. Rotate the handle on both sides of the machine so that the eccentric wheel rotates at an angle so that the grate bar can be lifted or lowered so that the clearance between the hammer and the grate can be adjusted and the desired product size is obtained. It is not necessary to stop when adjusting.
Jaw crusher with jaw and moving jaw, fixed jaw fixed on the front wall of the frame, moving jaw is hanging on the mandrel.When the eccentric shaft rotation, driving the connecting rod for reciprocating motion, so that the two thrust plate Also with the reciprocating movement, through the role of thrust plate, to promote hanging on the mandrel of the moving jaw for reciprocating motion. When the moving jaw toward the jaw, the material falling in the jaw cavity is mainly crushed by the jaw plate. When the moving jaw swing from the jaw, the material has been shattered under the action of gravity, the lower jaw cavity of the discharge port free discharge. So the jaw crusher work is intermittent, crushing and unloading process in the jaw cavity alternately.This crusher work, moving jaw on the point of the suspension shaft as the center, simply for the arc swing. As the trajectory is relatively simple, it is called a simple swing jaw crusher, referred to as the pendulum jaw crusher. As the moving jaw for the arc swing, swing the distance above the small, the following large, to move the bottom of the jaw (that is, the mouth) for the largest. Analysis of the moving trajectory of the moving jaw shows that the upper part of the jaw (at the feed port) horizontal displacement and vertical displacement, only the lower part of the left and right see Figure 1-5 (a). The swinging distance of the jaw at the feed port is not conducive to the clamping and crushing of the large material fed into the jaw cavity, and thus can not supply the material with the larger swing and the broken jaw cavity bottom, Limiting the jaw crusher production capacity. According to the movement of the moving jaw trajectory, the maximum stroke in the lower part of the moving jaw, and the discharge port width in the crusher operation is changing, so the broken material particle size is not uniform. As the pendulum jaw crusher jaw vertical displacement is small, broken when the phenomenon of grinding less, the material on the jaw plate wear and tear small.
Anti-sanding machine works is the material from the hopper into the sand machine, the material will be divided into two parts, part of the middle of the feeder into the high-speed rotation of the impeller, the rapid acceleration in the impeller, the acceleration Up to hundreds of times the acceleration of gravity, and then 60-70 m / s speed from the impeller three uniform flow of the projectile out, first with the sub-collector around the part of the material falling from the impact of broken, and then hit to Vortex chamber material lining, the material lining rebound, obliquely impact to the top of the vortex cavity, but also to change its movement direction, deflecting downward movement, from the impeller flow of material to form a continuous material curtain. Such a piece of material in the vortex crushing chamber by two times as many times the probability of impact, friction and grinding crushing effect. The broken material is discharged from the lower discharge port. In the whole crushing process, the material is self-impact crushing, not in direct contact with the metal components, but with the material lining impact, friction and crushing, which reduces the angle of pollution, to extend the mechanical wear time. Vortex cavity inside the clever air from the cycle, eliminating the dust pollution.
Counterattack sand making machine to meet the needs of the domestic infrastructure construction, ease the market demand for natural sand shortage of the situation, its production in the cement also played a very big role for the development of the cement industry to bring a great change.
Mobile garbage crusher, also known as mobile garbage crushing station, is a new type of mobile, efficient integrated crushing equipment. With the rapid development of urbanization of industrial buildings, urban construction waste gradually increased, the use of mobile garbage crusher also will be extended to a wide range of promotion.
Cone crusher is mainly in the high hardness of the ore material in the fine processing, mining, metallurgy, building materials, cement, roads, railways, water conservancy, construction and many other areas of indispensable one of the important equipment. In recent years, with the continuous improvement and improvement of China's industrial level, the demand for cone crusher is increasing.
Live chat with our professional customer service! Get the quotation list.Chat Now