Three kinds of errors often appear in wire and cable tensile testing machines

Today, Xiaobian said how to adjust the error of the wire and cable tensile testing machine! There are probably three types of situational errors.

*Species: positive deviation of indication value

Solution: After confirming that the equipment installation meets the requirements, first check if the friction is too large. If it is necessary to adjust the guide wheel clearance, eliminate the friction, clean the working cylinder, if there is still a positive difference, the pendulum in the force measurement part should be The fastening screw of the push plate connecting bushing is loosened, and the push plate is adjusted to the inner side. After the fastening screw is fastened, it is checked step by step from the small dial, and it is repeated several times until it is qualified.

The second type: the indication value of the negative deviation is out of tolerance

Solution: First check whether the force measuring piston is installed correctly and the friction is too large. After eliminating the above reasons, adjust the push plate to the outside and adjust the small plate. If the large and medium plates are still out of tolerance, it should be appropriately relieved. The weight of b and c is up to qualified.

The third type: the indication error presents “front positive and negative” or “pre-negative and positive” in the dial and the individual points are out of tolerance.

Solution: Change the angle between the push plate and the contact surface of the toothed head. The contact surface is usually fixed to the surface of the push plate by a flat piece of steel with two upper and lower screws. The adjustment method is to loosen the two screws and use copper or other thin metal sheets on the upper side or the lower side between the steel sheet and the push plate to change the angle and adjust to the qualified.

I hope that the above three solutions can help users of wire and cable tensile testing machines.