The working environment of the Single Toggle Jaw Construction Waste Crusher is bad and the workload is large. It often occurs a sudden huge overloading dangerous situation due to the uneven feeding or hard and unbreakable objects entering the crushing cavity. So the Single Toggle Jaw Construction Waste Crusher has overloading protection. This article mainly introduces 3 kinds of overload protection measures of the Single Toggle Jaw Construction Waste Crusher.
Set the low strength and easy break point of the elbows. That is, when the Single Toggle Jaw Construction Waste Crusher is overloaded, the stress sensitive zone of the elbow is broken by itself because of the sharp rise of stress to the limit value, and the power transfer is cut off to prevent the damage of the machine.
Because the mechanical performance of elbow plate (usually cast iron) is large and the accuracy of calculation is limited, it is impossible to control the breakpoint accurately and quantitatively, sometimes the overload is not protected.
Moreover, even if the overload is protected, because the Single Toggle Jaw Construction Waste Crusher is in an accident state, the equipment can't run before cleaning, disassembling and assembling, and the process is interrupted, and the production is delayed.
A spring friction clutch, a hydraulic friction clutch or a safety pin are used. This method is widely used in the simple pendulum Single Toggle Jaw Construction Waste Crusher.
The friction clutch should not only guarantee the transmission of the normal working moment, but also make the torque of the transfer do not exceed the allowable value. When the crushing chamber falls into the material barrier, the machine is overloaded, and the critical torque is reached. The flywheel slid freely on the shaft and plays the role of protecting the main parts.
But because the clutch friction factor affected by external conditions (such as temperature) influence the reliability of its work is limited, and overload, still need to repair, stop repair, trouble recovery system.
Because of the above two kinds of overload protection methods, there are many problems such as unreliable protection and shutdown in the condition of accident. Therefore, the safety and reliability of the hydraulic protection device is more widely used.
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