1 structure The counter-attack hammer crusher is mainly composed of a hammer rotor and a casing. The hammer rotor part is composed of a hammer head, a rotating shaft, a turntable, a pulley, a flywheel, a bearing seat and the like. The hammer head is movably transferred to the turntable of the rotor. One end of the rotating shaft is equipped with a flywheel for balancing, and the other end is equipped with a pulley to connect with the motor through a rotating triangle. The casing of the counter hammer crusher is welded by steel plate, which is mainly composed of a feeding hopper, an upper casing, a lower casing and a movable casing. The inner wall of the casing is provided with a manganese steel lining to protect the body. The feeding hopper and the upper casing at the top of the casing are usually fixed. Only when the rotor is replaced or overhauled, it needs to be disassembled. When the rotor is repaired routinely, such as replacing the hammer head and hammering the surface, it is mainly through the movable machine. The shell is carried out, and the lower casing is fixed and plays the role of supporting the whole crusher. The bottom of the lower casing is provided with a rafter board or a screen to discharge the material. 2 working principle The counter-type hammer crusher utilizes a rotating shaft mounted at a high speed in the casing, and drives the hammer head to impact the material to be broken by the turntable. The material injected into the upper feeding hopper of the casing is broken by the hammer of high-speed rotation, and the impacted material flies to the hard casing lining at a high speed due to the energy obtained from the rotor, and is broken again. When the material touched by the casing lining falls on the rotor, it is again impacted, so that the material is subjected to repeated impact crushing to meet the grading requirements, and the material is discharged out of the machine through the unloading raft plate or screen. The entire crushing process takes place in a closed casing. Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.zhongzhinanlighting.com