Hydrodynamic torque-converter internal play detection method

Abstract

The invention discloses a detection method for internal clearance of a hydraulic torque converter used in the field of detection of mechanical parts. Use the gravity drop principle of the internal turbine of the hydraulic torque converter or the loose parts to be tested to measure the internal clearance of the hydraulic torque converter. The measuring rod extends from the bottom of the hydraulic torque converter pump shaft with a small tightening force, the measuring rod touches the turbine or the loose parts to be tested, then the measuring rod pushes upwards to tighten the turbine or the loose parts to be measured, and then the measuring rod resets , and freely fall to the original position with the turbine or the loose parts to be tested, the measuring rod is kept close to the turbine or the loose parts to be tested by the spring force, and the internal clearance of the torque converter is determined through the measurement data of the configured sensor. The invention has the advantages of simple mechanical structure, reliable measurement process, high repeatability, simple and rapid operation, and is suitable for mass measurement in production lines.

Description

technical field [0001] The invention relates to a method for measuring the gap value of parts, in particular to a method for detecting the internal gap of a hydraulic torque converter. Used in the field of mechanical parts testing. Background technique [0002] The interior of the hydraulic torque converter is assembled from several mechanical parts or parts. The shell of the hydraulic torque converter is a cover wheel and a pump wheel, which are assembled by welding process. The interior is equipped with a lock-up clutch, turbine, guide wheel, and bearings. etc. The size of the gap between the parts of the hydraulic torque converter directly affects the transmission efficiency, torque transmission and starting stability of the hydraulic torque converter, so the internal gap must be controlled in the manufacturing process and must be 100% tested . [0003] There is no report on the method of detecting the internal clearance of the hydraulic torque converter in the publishe...

AI Technical Summary

Problems solved by technology

This method has a high degree of automation, but its disadvantage is that the measuring rod will drive the micro-displacement of the turbine (or the loose part to be measured) during the expansion process, which will affect the measurement accuracy; When the component) is drawn up to the upper structure, due to the reaction force, the measuring rod is likely to slip axially in the inner hole of the turbine shaft or the loose part to be measured, which affects the measurement accuracy

In addition, the expandable tightening mechanism at the end of the measuring rod is complicated, and the machining accuracy is very high, otherwise the tightening effect will not be achieved

After searching, no literature reports identical or similar to the technology of the present invention have been found