High-precision detection device for transmission errors of gearbox

Abstract

The invention provides a high-precision detection device for transmission errors of a gear box. The high-precision detection device comprises a processor, an absolute displacement sensor, an input rectification isolation circuit, a time grating angular displacement frequency divider and a pulse stretcher circuit; the absolute displacement sensor is electrically connected with the input rectification isolation circuit; the input rectification isolation circuit is electrically connected with the time grating angular displacement frequency divider; the time grating angular displacement frequencydivider is electrically connected with the pulse stretcher circuit; the pulse stretcher circuit is electrically connected with the processor; the beneficial effects of the invention are that the device is simple in error measurement process, is low in cost, is wide in measurement range, and is high in precision.

Description

technical field [0001] The invention relates to the technical field of measurement and control, in particular to a high-precision detection device for transmission errors of gear boxes. Background technique [0002] Gear transmission systems are used in all walks of life. With the advancement of industry, higher requirements are put forward for the manufacturing industry. Gear manufacturing, gearbox assembly, material deformation, etc. will cause gear errors. The transmission error detection method has the static measurement method using simple optical instruments. Although the measurement process is simple and the cost is low, the scope of use has great limitations. Dynamic measurement methods mainly include grating method, inertial method and time grating method. Inertial method is a high-precision dynamic measurement method, which uses the principle of inertia of the object to produce an ideal uniform rotational motion, and compares it with the measured uneven rotational...

AI Technical Summary

Problems solved by technology

The inertial method has high measurement accuracy and a wide measurement frequency range. However, the inertial method cannot measure low-frequency motion errors due to its inherent frequency limitation.

The grating method can measure a wide range of transmission ratios, but is generally more expensive

Images