Gearbox quality lacks data measurement instrument to be developed

At present, China's gear industry test equipment and equipment is very scarce, resulting in the lack of reliable test data for the quality of gearbox assemblies with an annual output of more than 20 million units. In order to completely change the backward quality of the internal quality of China's gear industry, we must pay attention to and strengthen the development of test instruments and equipment.

At present, there are only about 300 gear production factories in China's gear industry with metering rooms with basic instruments. There are more than 200 coordinate measuring instruments in total, and most of these instruments are imported from abroad. There are more than 1000 types of gear measuring instruments (mechanical, photoelectric, and numerical control), including more than 30 gear measuring centers. These instruments are manufactured by MAAG, Klingelnberg, Hofler, Carl Mahr, M&M, and Taylor Hobsom. Carl Mahr, Zeiss, SIP and other companies have more than 500 measuring instruments such as roundness meter, length measuring instrument, optical indexing head, roughness meter, projector, and Wangong. The remaining 200 gear manufacturers rarely have precision measuring instruments, and some factories do not have one measuring instrument except for the universal energy equipment.

In the measuring instrument, there are about 10 sets of assembly test instruments and worm gear testers, and no more than 50 sets of gearbox test benches and drive axle test stands. Many factories do not have the necessary instruments such as noise meters and torsional vibration meters. In the gear manufacturing process, the required quality of the product parts, components and assemblies must be strictly tested and controlled, so advanced and applicable measurement techniques and instruments are essential conditions.

In all kinds of machinery factories, whether the gear transmission parts are self-made or purchased, they should be equipped with gears, threads and spline measuring instruments, otherwise they cannot be controlled.

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