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Analysis of the movement trajectory of the mobile jaw of jaw crusher

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Date: 2021-06-28


From the perspective of crushing materials, the required moving trajectory of the moving jaw is: the horizontal stroke of the moving jaw should be large, and it should be gradually increased from the discharge port to the feed port. From the perspective of reducing the wear of the liner, the vertical stroke of the moving jaw should be small. , And make it contribute to the role of discharge. Such a movement track can not only improve productivity, but also greatly reduce the wear of the liner. The movement characteristics of the mobile jaw of the compound pendulum jaw crusher can basically meet the above requirements. For example, the horizontal stroke of the compound pendulum crushing motor jaw is large, and it is gradually enlarged from the discharge port to the feeding port, so it is conducive to crushing materials; the movement direction of the moving jaw movement track (Figure 2) has the effect of promoting the discharge. , So it has higher productivity than Jane pendulum crusher. However, its vertical stroke is relatively large, that is, the stroke is relatively large, so the liner wears faster, which reduces the service life of the liner. The movement characteristics of the movable jaw are the best yardstick for evaluating the quality of the crusher. If the movement characteristics of the crusher are poor, the performance of the crusher is definitely not good, or even unusable at all. Here is one of the simplest methods of surveying and mapping the movement characteristics of the movable jaw: calibrate the rectangular coordinates on a piece of white paper and stick it on the inside of the side wall of the feeder frame of the crusher, and then hold a pencil and press it on the movable jaw. At the level of the feed opening, put the pen tip on the paper and slowly rotate the belt pulley for a week, and then the real moving jaw movement trajectory is depicted on the white paper; the discharge opening is also surveyed and mapped in the same way. Finally, the actual value is measured with a ruler, from which the good or bad movement characteristics of the movable jaw can be evaluated.

diagram of jaw crusher


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