Determination of the force direction on the crosshead of a reciprocating machine
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For reciprocating machines with motor rotation in the clockwise direction, in the case of two symmetric cylinders, I would like to ask whether the force acting on the crosshead of the first cylinder is directed downward
When viewed from the motor side and rotated clockwise, the lower side of the crosshead in the right cylinder is under stress, while the upper side of the crosshead in the left cylinder is under stress
In a reciprocating machine, if the motor rotates in a clockwise direction, the force acting on the crosshead of the first cylinder is usually downward. This is because as the crankshaft rotates, the crank transfers power through the connecting rods to the crosshead, thereby driving the piston up and down. When the crankshaft rotates to a position where the connecting rod pushes the piston downward, the force acting on the crosshead is also downward. .
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Sir, is the rotation direction of this motor viewed from the non-drive shaft end or from the drive shaft end? And if the motor rotates in the opposite direction, should the direction of the force also be opposite?