Authors: G.M. Dubov, D.S. Trukhmanov, E.S. Lopasova, I.E. Eltsov, R.A. Timofeev, P.A. Fominykh

Title of the article: Review of gear trains with different profiles of the teeth of the gear

Year: 2018, Issue: 6, Pages: 76-93

Branch of knowledge: Mechanical engineering and machine science

Index UDK: 62-233.3/.9

DOI: 10.26730/1999-4125-2018-6-76-93

Abstract: The article provides general information on mechanical gears. It is noted that gears have found the widest application in mechanical engineering and instrument making. The characteristic of gears with involute tooth profile is given and their main geometrical parameters are analyzed. The advantages and disadvantages of involute gears and the main areas of application are indicated. Novikov gearing is considered, as an example of a transfer with a circular profile of the teeth of the gear. Two main types of Novikov gearing and their brief comparative characteristic is given. The basic description methods and cycloid types are analyzed. The charac-teristic of the pinching gear as one of the varieties of cycloidal gears is given. The principles of the formation of eccentric-cycloidal gearing are discussed in detail. The results of industrial tests and mathematical modeling are given, and a comparative characteristic of EC gearing with the main types of gears is given. Indicates its advantages and disadvantages, and possible areas of application. The basic properties and methods for constructing curves of the “Pascal snail” type and the advantages of their use in gears are examined. The characteristic of the front-end transmission is given, in particular, the Nechaev’s transmission and the front-end pinching gear. Are spheres of application of front-end gears is given. In conclusion, it concludes the possibility of using information from the review in the design of gears in mining equipment.

Key words: gear trains involute engagement Novikov gearing cycloid eccentric-cycloidal engagement pinching gear front-end transmission Nechaev’s transmission Pascal's snail

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