The installation and test methods of Charpy Pendulum Impact Tester are as follows:
1. After unpacking and cleaning, move the testing machine to the pre-made foundation (please consult your dedicated engineer for detailed foundation drawings), and use a level to adjust the plane of the machine to within 1000:0.2, tightly anchor bolts;
2. Check whether the parts are intact and undamaged, and the rotating parts should be flexible;
3. Connect 380V, 50Hz three-phase four-wire power supply;
4. Insert the plug of the hand control box into the socket;
5. Turn on the power switch, the indicator light is on, and the servo motor of the signal device should rotate counterclockwise (from the working position);
6. Turn the switch on the hand control box to the "ON" position, click the "Swing" button, and the main motor will rotate (if the pendulum is found to rotate counterclockwise at this time, turn off the power and change the power phase sequence). After adjusting the power supply, press the "Take Pendulum" button, the main motor rotates, the electromagnetic clutch is combined, and the power is transmitted to the pendulum shaft. When the hook hits and crosses the hook and release mechanism, it hits the damping rod and the limit switch is in a relaxed state. , At this time, the main motor stops, the electromagnetic clutch is disengaged, and the pendulum is hung on the swing mechanism by its own weight; when the "impact" button is pressed, the valve is energized with an electromagnet to push the swing mechanism to swing and swing The hammer falls freely and impacts → automatically raises the pendulum → hangs the pendulum; when it is necessary to place the pendulum, press and hold the "Pendulum" button, the valve uses an electromagnet power on, the jacking and disengagement mechanism rotates downward, the electromagnetic clutch is combined, the main motor rotate, the pendulum rotates clockwise, when it reaches the vertical position, release the button to stop.
7. Check that the empty hit pointer returns to zero:
This is the inspection of energy loss caused by friction. After adjusting the position of the pointer and the needle, first press the "pendulum" button, take the pendulum→hang the pendulum, then press the "return pin" button, and then press the "impact" button ( Or turn the toggle switch to "OFF") to make the pendulum swing back and forth. When swinging to the highest position for the first time, quickly turn the pointer back to the left limit of the dial (be careful not to touch the dial and pendulum), and wait for the pendulum (push the pointer to the dial again for the second time) After the right side, you can write down the value indicated by the pointer at this time. The difference between the two times (the first time should be zero) is divided by 2, which is the energy consumed by the impact pendulum in the frictional resistance during one swing; for 300J pendulum, the energy loss should not be greater than 1.5J; for the 150J pendulum, the energy loss should not be greater than 0.75J.
8. Adjust the span of the support and its relative position with the blade, according to the span adjustment diagram.
