1.Parameter calculation of helical cylindrical gear pair In this design, helical cylindrical gear is selected for transmission. The precision of helical cylindrical gear is grade 7. The material of pinion gear is 40Cr. The heat treatment method is surface quenching. The material of wheel of helical cylindrical gear is...
During the operation of the parameter measurement system, the image acquisition and processing are parallel. During the measurement of the tooth profile parameters of the cylindrical helical gear, the measurement results of the third tooth and the 49th tooth are selected for comparison. The measurement results of the tooth...
In order to verify the effectiveness of the measuring system for the machining parameters of cylindrical helical gears with manufacturing errors, the standard involute helical gears are selected as the experimental objects. The structural shape is shown in the figure, and the relevant parameters of the cylindrical helical gear...
When designing the measuring process of the processing parameters of the cylindrical helical gear, firstly, the edge closure of the image considering the manufacturing error is detected. The pixel level edge detection algorithm needs to obtain the sub-pixel level edge position within a certain range in the image. For...
The application of machine vision technology in the software design of parameter measurement system requires image processing. In order to narrow the gap between the parameter measurement results and the real parameter results, the manufacturing error is taken into account in the image processing process, so the Hough transform...
Different from ordinary gears, the gear teeth of cylindrical helical gears are not parallel to the central axis. Therefore, the manufacturing error generated in the process of gear processing needs to be considered in the measurement system of cylindrical helical gear processing parameters. Therefore, machine vision technology is introduced...
Cylindrical helical gear is a common transmission component in industrial machinery, which is widely used in transportation, aviation, shipbuilding and other industries. In the process of industrialization and informatization, the parameter design and related detection technology in the process of cylindrical helical gear processing are still hot research directions....
Cylindrical helical gear is a common transmission component in industrial machinery, which is widely used in transportation, aviation, shipbuilding and other industries. In the process of industrialization and informatization, the parameter design and related detection technology in the processing of cylindrical helical gears are still a hot research direction....
According to practical experience, contact fatigue often occurs in helical cylindrical gears of transmission. The basic parameters of the high-speed helical cylindrical gear pair of the electric vehicle studied are shown in the table below. During the meshing process of helical cylindrical gears, the maximum contact stress on the...
In the overhaul project of large-scale mechanical press produced, due to the long service time of the press, when checking the transmission mechanism, it is found that the left and right intermediate gears and helical cylindrical gears are seriously worn and can no longer be used, so they must...