Crusher driven by linear motor

The invention provides a crusher driven by a linear motor. The crusher is mainly used for crushing concrete ground in the field of construction engineering, and is high in crushing efficiency and easy to maintain. The crusher mainly comprises a shell, a linear motor stator, a linear motor rotor, a center shaft, a bearing, a crushing head and a machine frame. According to the working principle, the linear motor rotor is connected with a forward power supply, and the linear motor rotor moves linearly and vertically upward along the linear motor stator and drives the central shaft and the crushing head to move linearly and vertically upward; when the linear motor rotor is connected with a reverse power supply, the linear motor rotor moves linearly and vertically downward along the linear motor stator and drives the central shaft and the crushing head to move linearly and vertically downward; the crushing head moves repeatedly to crush the concrete ground, and pushes the machine frame forward to crush the ground of the next place.