Electric wrench sudden failure how to do

Then, after the torque wrench is used for a period of time, the output power will inevitably drop. With the increase of the use time of the wrench, the output power will continue to drop until it cannot work. The working principle of the torque wrench is that after the motor is decelerated by the planetary gear mechanism, the power is transmitted to the impact head, and the two heads of the impact head drive the wrench shaft to rotate through the wrench shaft claw, and the wrench shaft completes the power output.

Through the dismantling observation of the electric torque wrench, the technician found that all the used torque wrenches had severe wear of the wrench shaft working face without exception. The worn work surface is an inclined plane that forms an angle of approximately 45 degrees with the original work surface. This oblique surface will disperse the impact force acting on the wrench shaft during operation. After the impact force is dispersed, the force conditions of the internal components of the torque wrench are also changed.

Through the above observations, we have found out that the main reason for the failure of electric wrenches is the severe wear of the wrench face. Therefore, to effectively extend the service life of the electric wrench, it is necessary to solve the wear problem. And because the wear of the wrench shaft is more severe than that of the impact head, the problem of wear of the wrench shaft is the key. If this problem is solved, the impact head wear problem will be solved. If the integral wrench is changed into a split type, the working surface of the wrench can be disassembled. After a certain period of use, the wearer can replace it according to the wear condition. The active work surface can be individually selected with suitable materials, and through a reasonable processing process, high mechanical performance can be achieved. Therefore, the high-carbon steel is selected and the heat treatment process of tempering and tempering after quenching is performed. The active working surface thus processed has a high hardness and a certain toughness, so that it will not break when subjected to an impact. And can be processed in large quantities, one processing can meet the long-term replacement of the use of requirements, very convenient. The problem of failure of the electric wrench will be solved.