Parameter-optimized metallurgical crane speed reducer gear service life evaluation method

Abstract

The invention discloses a parameter-optimized metallurgical crane speed reducer gear service life evaluation method, and belongs to the technical field of equipment service life evaluation. The methodcomprises the following steps: constructing a tooth profile wear amount calculation formula based on an Archard's wear calculation model; for front and rear stages of transmission gears of the speedreducer, keeping the total transmission ratio and the number of driving gear teeth of each stage unchanged, adjusting the transmission ratio of each stage within a reasonable gear number range, and sequentially calculating the tooth profile abrasion loss and the overall service life; aiming at the same-stage gear in the speed reducer, under the condition that the transmission center distance is not changed, adjusting the modulus and the number of two gear teeth, calculating the tooth profile abrasion loss, and observing the change trend of the tooth profile abrasion loss; and introducing a displacement coefficient, so that the aims of reducing the tooth profile abrasion loss and prolonging the service life are fulfilled. By adjusting the basic parameters of the gear, the abrasion rate of asingle gear is reduced, the abrasion loss difference value between the driving gear and the driven gear of the same-stage gear and the abrasion loss difference value between the gears of different stages are reduced, the service life of the gear is prolonged, and the equal abrasion between the gears is achieved.

Description

Technical field: [0001] The invention belongs to the technical field of equipment life evaluation, and relates to an Archhard wear calculation model, in particular to a parameter-optimized method for evaluating the life of metallurgical crane reducer gears, which is used for numerical calculation of tooth profile wear. Background technique: [0002] As the main structure of the reducer, gear has the advantages of large carrying capacity, high transmission accuracy, constant transmission power, etc. Its reliability and service life are of great significance to the normal operation of other moving parts and the state of friction pairs. There is often relative sliding of contact surfaces between gear pairs, so wear is difficult to avoid. Excessive tooth surface wear will not only reduce transmission accuracy and transmission efficiency, but also cause additional shock and noise, and even cause gear teeth to break and be damaged. At present, the main research method is actual measur...

AI Technical Summary

Problems solved by technology

There is often relative sliding of the contact surfaces between the gear pairs, so wear is unavoidable

Excessive tooth surface wear will not only reduce transmission accuracy and transmission efficiency, but also cause additional impact and noise, and even cause tooth breakage and damage

At present, the main research method is to carry out actual measurement through the method of experiment. The test cycle is long and consumes a lot of human and financial resources. Therefore, it is necessary to develop theoretical derivation and wear simulation through numerical calculation and software simulation.

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