Analyze the anti-clockwise movement track of the movable jaw of the jaw crusher
The picture shows the trajectory of a point on the upper part of the movable jaw when the crank of the jaw crusher rotates counterclockwise. In the figure, point A is a point farther from the fixed jaw. From this point, the movable jaw starts to move to the fixed jaw. The sub-speed of point A in the horizontal direction is zero. Since it needs to move to the right, there must be one in the horizontal direction at this time. The acceleration component to the right is the only way to make the moving jaw have a rightward speed; when the moving jaw moves to point D and point B, its horizontal speed must first increase and then decrease, and it will become when it reaches point B. Zero. In this process, the horizontal acceleration must first be the same as the horizontal velocity. When the horizontal right velocity reaches a larger value, it becomes zero. After this moment, the horizontal acceleration will horizontally move to the left.
Jaw crushing mobile jaw movement trajectory
Figure trajectory of the upper point of the moving jaw counterclockwise
Although the horizontal velocity of point B is zero, its horizontal acceleration is not zero. The acceleration before and after point B and at point B are horizontal to the left. After point B, it moves to point C and point A. At the beginning, the velocity and acceleration directions are both horizontal to the left, and the velocity increases. Because the horizontal velocity at point A becomes zero again, that is, when the moving jaw moves toward point A The horizontal velocity is reduced, which requires an acceleration that is opposite to the velocity direction, that is, when the movable jaw approaches point A, its acceleration direction is to the right. This paragraph qualitatively discusses the relationship between the velocity and acceleration in the horizontal direction of a point on the movable jaw during a period of movement.
Since the ADB section is the effective crushing section and the BCA section is the discharging section, only the movement of the ADB section is considered when assuming a suitable point for crushing.
The movement of the movable jaw of the jaw crusher to the fixed jaw is a process. In this process, the material is crushed at any moment. In fact, this is random. It is possible at any moment. The crushing is in three of the three stages of crushing. All stages can happen.
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