Authors: D.M. Dubinkin, D.I. Zakrasovsky

Title of the article: Development trend of the creation of intellectual property in the field of the development of rear axle case of mining dump trucks with electromechanical transmission

Year: 2024, Issue: 4, Pages: 65-70

Branch of knowledge: 2.8.8. Geotechnology, Mining machines (engineering)

Index UDK: 622.684

DOI: 10.26730/1816-4528-2024-4-65-70

Abstract: The article presents the results of patent research carried out on the event on the topic: "Development and creation of an unmanned shuttle-type mining dump truck with a cargo capacity of 220 tons" in the field of the crankcase of the rear axle of a mining dump truck. The result of the patent search was the identification of 36 applications in the field of rear axle crankcase design. The analysis of the distribution of filed patent documents by year of publication and geography of patenting was carried out, the main directions of technical solutions were highlighted, the leading applicants and patent holders were considered. Patent applications for 25 years have been reviewed as part of patent research. Since 2011, there has been interest in patenting in the field of the rear axle crankcase, the distribution of patent documents by year of publication indicates an alternation of ups and downs in publication activity. The emergence of interest in 2011 This may be due to the appearance at that time of dump trucks with an electromechanical AC transmission - competitive in price, superior in traction and dynamic characteristics of its predecessor (DC drive), in this regard, there was a need to develop rear axle crankcase designs that can meet the requirements for new traction and dynamic characteristics. The trend of decreasing the number of applications until 2019 It may be related to the general change in legislation in China in order to optimize the structure of applications and improve their quality, when the number of applications in 2019 in the country decreased by 9.2% for the first time in 24 years. The main directions of development are caused by the need to improve the reliability of the structure. China is the leader among the patent holders, while 56% of the total received patent base belongs to four large companies producing mining dump trucks. The identified technical solutions will allow us to evaluate existing circuit and design solutions and develop new ones.

Key words: rear axle housing mining dump truck patent research

Receiving date: 02.09.2024

Approval date: 15.10.2024

Publication date: 31.10.2024

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