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Analysis About Intensity of Impactor Crusher Key Parts

Date: Ju 17,2013

Impactor crusher works in harsh environment; in the crushing process, rotor, plate hammer and counterattack liner of impactor crusher bear instantaneous random shock load when they collide with materials; in addition, rotor have to withstand the centrifugal force caused by rotor rotation, therefore we have very high requirements on the intensity of impactor crusher counterattack, rotor and plate hammer. This article is to analyze the intensity of three key components for impact stone crusher.Intensity analysis of impact stone crusher rotor mainly refers to analyze the instantaneous stress and straining condition of rotor when rocks collide with hammers throughout the crushing process, as well as analyze rotor stress and strain condition of rotor when in free rotation.


Driven the movement of rotor, board hammer of impact stone crusher takes high speed rotation with rotor, so the contact part between the two must be under the action of force. Also, in rotation process of board hammer, raised part on board hammer contacts with rotor, so the raised part has to withstand greater centrifugal force.
Collision location between first counterattack and materials is at the lower part of first counterattack, so it must bear big force when materials collide the fixed axis on upper part of counterattack, and the collision part between materials and first counterattack withstands the biggest stress.
Form the analysis of instantaneous stress generated by collision between materials and secondary plate, we can get that instantaneous stress located near the second plate of hard rock impact crusher is large, that is, collision part between materials and second counterattack of hard rock impact crusher is large. According to stress distribution of materials colliding with third counterattack plate, we can get that the acting force generated by the collision of materials and third plate has big effect on overall structural efficiency of counterattack, and the largest stress value is also located in collision part of impactor crusher.

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