Bearing and gear adaptation design method for reducing fault rate of gear transmission system

Abstract

The invention relates to a design and manufacturing method of a gear transmission system, which is a bearing-gear matching design method which reduces the malfunction rate of the gear transmission system; the bearing-gear matching design method comprises a pair of meshing pair which includes a large gears (1) with the tooth number of (DC) and a small gear (2) with the tooth number of (XC), a bearing (3) used for supporting the large gear and a bearing (4) used for supporting the small gear; the bearing (3) is set on the parameters, including the pitch diameter (DD0), the roller diameter (Dd) and the roller number (DZ); the bearing used for the small gear includes the parameters of the pitch diameter XD0, the roller diameter Xd and the roller number XZ; the bearing-gear matching design method is characterized in that the structure relation in the bearing-gear matching design method follows the structure relations of preventing the gear, the bearing roller, the bearing internal ring andthe bearing external ring of the gear transmission system from having opposite rushing fatigue centralization and preventing the crack caused by the shaft fatigue centralization initiated by the gearload fatigue centralization. The bearing-gear matching design method is used for instructing the information rule research when the malfunction diagnosis strategy is designed, instructing the optimumdesign when the gear transmission system is designed and manufactured and reducing the malfunction rate of parts of the gear transmission system, so as to improve the safety and the service life of the transmission system and provide a design theory and technical basis for the technical innovation of the manufacturing industry.

Description

technical field [0001] The invention relates to a design and manufacture method for a gear transmission system, in particular a design method for matching bearings and gears that can reduce the failure rate of the designed gear transmission system, which belongs to the technical category of equipment failure mechanism diagnosis and is used for fault diagnosis in design Research on information rules for strategic guidance, and guidance for optimal design of gear transmission systems, in order to reduce the failure rate of each component of the transmission system, thereby improving the safety and service life of the transmission system. Background technique [0002] The design of the existing gear transmission system is mainly based on the traditional design theory of transmission gears from the aspects of speed, load, transmission ratio, etc. The purpose is to make the designed gear transmission system have higher transmission efficiency, and establish corresponding design sp...

AI Technical Summary

Problems solved by technology

However, there are no reasonable regulations on the number of gear teeth and bearing parameters (such as shaft diameter D, middle diameter D0, roller diameter d, roller number Z) of the gear transmission system, so that the gears, shafts and bearings of the designed transmission system Some frequent failures occur, such as: fatigue fracture of gear teeth, cracks in tooth grooves of gears, fatigue cracks or cut-off of gear shafts; concentrated fatigue and abrasion of outer rings or / and inner rings of bearings, fatigue damage of some rollers Etc., especially in those machinery where there is an unexpected increase in the gear meshing radial force, the gear transmission system will greatly reduce the life of the system due to frequent failures, and even endanger safety due to sudden failures

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