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The crusher is widely used in the construction of the building, it is the most important crushing device. The quarry crusher has the advantages of simple structure, convenient maintenance, and has a very wide range of practical applications. However, the building stone of varying quality, often mixed with hard metal, crushing process, because the material hardness is too large will cause crusher difficult or impossible to stop blocking the broken condition, loss crusher equipment, construction safety hazards , causing heavy economic losses.
Crusher industry experts analyzed the opportunity to break hard objects blocking the stop condition resulting in damage to the device main reasons: crusher driven by the motor under normal operating conditions, the crusher teeth stick was instantly stopped blocking, crushers stall protection, overcurrent protection , overload protection, stall protection and other protective devices must response to the motor so that the motor power shut down, and the motor inertia force there from the beginning to the power shutdown, stop for about three seconds, and the fluid coupling must act to wait for the oil temperature reaches a certain case have to run, the reaction time is longer, crushers original stall protection, overcurrent protection, overload protection and hydraulic coupling still can not make protection response action, inertia force will immediately The damage to the crusher prongs and reducer.
In such cases, the domestic crusher crusher industries and enterprises should start with the development of auxiliary equipment, the installation of a reaction rate in place crusher than stall protection, overcurrent protection, overload protection and hydraulic coupling must be fast protection device, when the crusher encounter blocking stop the situation, making the motor and gear reducer and stick out, get rid of the inertia force, thereby avoiding the crusher reducer or prongs driven inertial force and damage.