Stand for measuring the stress-strain state of the piston skirt of an internal combustion engine

摘要

This utility model relates to mechanical engineering, namely to testing devices for determining the deformation parameters of piston skirts of various designs.;The stand for measuring the stress-strain state of the piston skirt consists of a rigid spatial frame, in the upper part of which a guide with a clamp is rigidly fixed. The movable shaft is located in the guide. The device for applying the load and the device for measuring the applied load are rigidly fixed in the lower part of the frame coaxially with the movable shaft. The device for measuring the deformation is made with the possibility of fixing on the frame, so that the sensitive element of the measuring device is in contact with the surface of the piston. The piston to be tested is fixed between the test load measuring device and the movable shaft. Investigations are carried out by applying a load to the piston to be tested, at diametrically opposite points in the skirt region, and determining the deformations of the piston skirt corresponding to the applied loads using strain gauge or dial indicators.;The utility model expands the range of the studied piston skirt deformation. 1 ill.