Working Principle Of Auto Tensioner Of Automobile Engine

1. Working principle:

The intelligent belt tensioner is mainly transmitted to the control box according to the automatic signal from the intelligent controller to direct the action of the motor. The rotation of the push screw and the role of the lever, and the elastic force of the spring causes the roller to tighten the belt. The intelligent control box is the control and command center of this product, and the motor and lever are the executing agencies. The automatic control function is completed in combination with the corresponding software algorithm.

2. Working process:

The roller is always in contact with the belt of the pumping unit, that is, when the pumping unit is in working state, the roller is also rotating. When the belt is loosened, the pressure of the belt and the roller is less than the pressure of the spring, the sensor is transmitted to the control Box, direct the rotation of the motor, make the upper and middle frames rotate slowly around the 0 axis, raise the roller, gradually increase the pressure between the roller and the belt, when the pressure between the roller and the belt increases to be greater than the spring pressure, The upper frame rotates around the 0 axis at a small angle. After rotating to a certain range, the sensor is transmitted to the control box to direct the motor to stop rotating. This process completes the work of tightening the belt. Due to the self-locking nature of the worm gear reducer, Therefore, the roller is always fixed at the position where the belt is tightened. If the belt is stretched again, the tensioner repeats the above operation.

3. The working principle of the intelligent motor controller:

The intelligent motor controller is a high-tech electronic device integrating computer technology and sensor technology. It uses the position signal of the position sensor to reflect the pressure of the belt to the roller through the position, which in turn calculates the pre-tensioning force of the roller to the belt. The position sensor can output different position signals to the computer according to the belt tightening degree, and the computer determines whether the belt should be tightened. If the belt is stretched or slack, the computer sends a control signal to control the motor to work, and the motor drives the roller to tighten the belt. After the belt is tightened, when the computer detects that the position sensor returns to the tightened position, it automatically stops the motor to work so that the entire system does not consume power (the controller's overall power consumption is ≤0.02W).

When the intelligent belt tensioning device is installed, the pre-tensioning force of the roller to the belt can be manually adjusted, so as to adjust according to actual needs, and flexibly set the size of the pre-tensioning force on the belt