Gear dynamic transmission error measurement method and measurement device

Abstract

The present invention relates to a gear dynamic transmission error measurement method and a gear dynamic transmission error measurement device, and belongs to the gear transmission precision measurement technology field. Aiming at the development tendency that a conventional gear measurement device is required to use the gear dynamic precision taking a gear dynamics research result as the basis to substitute for the gear static precision taking the gear geometry and kinematics research results as the basis, the present invention provides the gear dynamic transmission error measurement method and the gear dynamic transmission error measurement device. By a gear rapid assembling device, the gears of different sizes and specifications are replaced rapidly and at a high precision; by a precise movement platform, the adjustment of a center distance and the tooth width direction parameters is controlled accurately; and by utilizing a working condition simulation system to simulate the state of a gear actual working system, the measurement precision and the credibility of a dynamic transmission error are improved. By considering the gear working load and the lubrication conditions, adopting an unconnected high-precision circular grating to obtain the information of the angular positions of the driving and driven gears, and utilizing a digital phase comparison method to process the data, the gear dynamic transmission error is obtained.

Description

technical field [0001] The invention relates to a measurement method for a gear dynamic transmission error and a gear dynamic transmission error measurement device, belonging to the technical fields of gear pair transmission accuracy measurement technology, precision testing technology and instrument, and mechanical transmission technology. Background technique [0002] Gears are widely used in the transmission systems of automobiles, ships, wind power, etc., and are an important transmission part in modern industry, transportation, and energy power transmission. Due to the advantages of smooth transmission, precise transmission ratio, high efficiency and long life, gear transmission still plays an important role in power transmission and is the most widely used mechanical transmission. Due to the constraints of gear processing technology and testing technology, although my country is a big country in gear manufacturing and use, it is not a powerful country in gear manufactu...

AI Technical Summary

Problems solved by technology

Many inspections and experiments in the industry have confirmed that there is a direct relationship between vibration, noise and transmission error. It is difficult to study and control vibration and noise without transmission error testing.

Moreover, the current transmission error test system is usually carried out at low speed and no load, and the transmission system is tested as an ideal system without vibration

However, under high-speed conditions, the current transmission error test system cannot meet the accurate test requirements.

Most of the testing equipment only considers the static error under no-load conditions, and ignores the dynamic error under load conditions, which cannot truly simulate the actual working state of the gears, resulting in a reduction in the authenticity of the gear transmission accuracy test

Images