1, working principle of electric push rod: the motor drives a pair of lead screws and nuts after being decelerated by gears. Turn the rotary motion of the motor into linear motion, and use the positive and negative rotation of the motor to complete the push rod action.

2. Complex actions such as rotation and shaking can be completed through various mechanisms such as levers, rockers or connecting rods. By changing the length of the lever arm, the stroke can be increased or decreased. Travel control device.

3. Worm gear and worm transmission form: the worm on the motor gear drives the worm wheel to rotate, so that the small screw in the worm wheel moves axially, and the connecting plate drives the limit rod to move axially accordingly. When the required stroke is reached, the motor stops running by adjusting the limit block and pressing the stroke switch (positive and negative control is the same).

4. Gear transmission mode: the motor drives the small screw installed on the inner tube after passing through the reduction gear, and drives the nut connected with it to run axially. When the set stroke is reached, the nut antenna presses the limit switch to cut off the power supply and the motor stops running (the same is true in the opposite direction).