7 small problems common to cantilever beam impact testing machine

The plastic impact test is generally referred to as a simple-supported beam impact tester and a cantilever beam impact tester. A commonly used cantilever beam impact tester is used to determine the resistance of metal materials to impact under dynamic load in order to judge the material moving. The nature under load. The microcomputer controlled impact tester developed by the joint laborer adopts the manual control box or the microcomputer control, which is easy to operate and has high work efficiency. The residual energy after the sample is broken by the pendulum can be automatically lifted by the PLC control. In the continuous impact test of the sample, it can better reflect its superiority. It is an ideal test equipment for chemical industry, scientific research units, universities and colleges and quality inspection departments.

Plastic impact test machine common faults and solutions:

First, the hook hits the pressure damping rod, the motor has stopped, but the pendulum does not fall on the hook, press the "impact" button, the valve has been operated with the electromagnet, but the pendulum does not fall.

Possible causes and solutions:

1. The armature of the electromagnetic clutch can't be removed: several end face splines of the armature are not properly matched with the keyway; open the cover, add a few drops of oil at the end face key and the keyway slide and use the screwdriver to move a few times.

2. Exceed the spring force or the spring force is small or fatigue, or replace the spring.

Second, the vibration is very strong when hanging

Possible causes and solutions:

1. The damper spring force is too small; please replace the new spring in time.

2. The gap between the top of the arc of the hook and the damper rod is too large; please adjust the gap by yourself, screw out the switch platen, and turn the nut to make the damper gap reach 0.1-0.5mm.

Third, press the "pick up" button pendulum does not move

Possible causes and solutions:

1. The belt may be loose: adjust the belt under test run.

2. Power failure: Check if the fuse is intact.

3. Micro switch failure: The micro switch needs to be replaced.

Fourth, the vibration is very strong when placed

Possible causes and solutions:

The drive belt is slack;

Check the screws, tighten the lag screws (top in the socket) and tighten the lock nut.

5. The hook hits the pressure damping rod, and the micro switch is in a relaxed state, but the motor does not stop.

Possible causes and solutions:

If the PLC controller is faulty, please contact our company in time.

6. Do not stop when placed in the vertical position

Possible causes and solutions:

The PLC controller is faulty; please contact us directly.

7. The pendulum is in the back swing in the left part of the vertical position, the electromagnetic clutch is combined, and a large impact sound is produced.

Possible causes and solutions: Poor contact between the clutch and the carbon brush; wipe the parts with copper hydride.

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