Hangchi Won two Invention Patents

Recently, Hangzhou Qianjin Gearbox Group Co., Ltd. (hereinafter referred to as “Hangzhou Gear Group”) received good news that two invention patents of the company were successfully authorized after fast pre-examination. This achievement not only demonstrates the profound strength of Hangzhou Gear Group in the field of technological innovation, but also wins more opportunities for the company in the fierce market competition. ​

After learning that the Hangzhou Intellectual Property Protection Center has accepted high-quality patent fast pre-examination business in the manufacturing field since October 2021, the Hangzhou Gear Group Technology Center responded quickly and carefully selected two valuable high-quality invention patents-“Processing method and correction tooling of heavy-duty herringbone gear rings processed by split assembly” and “Internal and external tooth alignment control structure and processing method of high-speed precision heavy-duty herringbone gear rings”, and actively applied to enter the fast pre-examination channel. In order to ensure that these two patents pass the pre-examination smoothly, the Hangzhou Intellectual Property Office organized experts to go to Hangzhou Gear Group to conduct on-site inspections and in-depth docking on the company’s technological innovation. After a comprehensive evaluation, the experts unanimously recognized the technological innovation strength of Hangzhou Gear Group and agreed to the company’s application. ​

After entering the fast pre-examination channel, the review process of these two patents has been significantly accelerated. It took only three months from acceptance to receipt of the authorization notice, and the invention patent certificate was officially obtained on February 22, 2022. Compared with the conventional patent authorization cycle, the fast pre-examination channel greatly shortens the time, allowing technological innovation to be quickly transformed into legally protected patent results, injecting strong impetus into the company’s technological research and development, and further stimulating the innovative inspiration and creativity of R&D personnel.

“Processing Method and Correction Tooling of Heavy-Duty Herringbone Gear Rings by Split-and-Assembled Processing” focuses on solving the problems of heavy-duty herringbone gear rings in the processing process. The traditional overall processing method has problems such as high processing difficulty and difficulty in ensuring precision when facing large and heavy-duty herringbone gear rings. This invention adopts split-and-assembled processing technology to split the gear ring into multiple parts for processing, and then accurately splices them through unique correction tooling, which effectively reduces the processing difficulty and greatly improves the processing precision and production efficiency. This innovative method has a wide range of application prospects in gear transmission systems in large ships, heavy machinery and other fields, and can significantly improve the performance and reliability of related equipment.
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“Internal and External Gear Alignment Control Structure and Processing Method of High-Speed ​​Precision Heavy-Duty Herringbone Gear Rings” focuses on the problem of internal and external gear alignment of herringbone gear rings under high-speed, precision and heavy-load conditions. Under high-speed operation and heavy load, the centering accuracy of the internal and external teeth of the gear ring directly affects the operating stability and service life of the equipment. This invention of Hangzhou Gear Group realizes high-precision centering of internal and external teeth by designing a unique centering control structure and combining it with precise processing methods, effectively reducing tooth surface wear, improving transmission efficiency, and extending the service life of the gear ring. This technology has important application value in high-end equipment manufacturing fields such as aerospace and high-speed trains, and provides key technical support for promoting the development of my country’s high-end equipment manufacturing industry. ​

Since its establishment in 1960, Hangzhou Gear Group has always been firmly based on the main business of transmission devices and has continued to rely on scientific and technological progress to enhance its core competitiveness. Through continuous and high-starting point technological transformation, the company actively introduced world-class high-precision equipment, and built a complete R&D system, quality management system and marketing service network. Over the years, Hangzhou Gear Group has invested heavily in technology research and development, and the average annual R&D investment has always remained above 5% of its main business income. Up to now, the company has cumulatively authorized more than 640 patents, presided over the revision of more than 40 national standards and industry standards, and completed more than 50 provincial industrial new product appraisals. Its technical level and R&D capabilities have long been in a leading position in the industry.

The two invention patents were authorized after the fast pre-examination, which is another important milestone in the technological innovation journey of Hangzhou Gear Group. The successful opening of the fast pre-examination channel provides valuable experience for the company’s subsequent patent applications and technological innovation. The Technology Center of Hangzhou Gear Group stated that it will continue to make full use of this policy advantage in the future and strictly screen more high-quality and high-value invention patent applications to enter the fast pre-examination channel. At the same time, the company will also actively promote the transformation of scientific and technological achievements, accelerate the pace of enterprise R&D and innovation, and continuously enhance the market competitiveness of the company’s products, and make unremitting efforts to build a first-class Asian and internationally renowned transmission device enterprise group.