A method for on-line detection of wear amount of slewing bearing and automatic filling of lubricating grease

Abstract

The invention relates to a slewing bearing wearing extent on-line measurement and lubricating grease automatic filling-up method. The method comprises the steps of utilizing the change of a lubricating grease insulating property to judge the change of metal particle content in a lubricating grease, and judging the wear condition of a slewing bearing raceway, so as to indirectly judge the generation and development of the damage of the raceway and be used for optimizing a lubrication condition of a slewing bearing, determining filling-up quantity and filling-up frequency of the lubricating grease according to the wear condition, and realizing the required lubrication of a self-adapting working condition. The method provided by the invention avoids the problem of separation of a wearing extent value of a micrometric displacement measuring method, the problem of self abrasion of a contact-type micrometric displacement transducer, and the problem of insufficient non-contact type micrometric displacement range and poor accuracy, can realize on-line measurement, avoids the problems that the regular fixed point filling-up has the problems of excessive pouring grease or shortage and the like, optimizes the lubrication condition of the slewing bearing, effectively improves the load-carrying capability of the slewing bearing, prolongs the service life, and fills up an industry blank; and the purposes can be realized just by general instrument and equipment such as electric control grease pouring pumps, insulation meters and measuring heads.

Description

technical field [0001] The invention relates to on-line detection of wear amount of a slewing bearing and automatic lubricating technology, in particular to a method for on-line detection of wear amount of a slewing bearing and automatic filling of lubricating grease. Background technique [0002] Slewing bearings are widely used in construction machinery, wind power generators, offshore platforms, military equipment and other large-scale mechanical structures that require relative rotary motion. Its size is large and similar to bearings, so it is also called slewing bearings, but It has characteristics different from ordinary bearings: it is required to bear axial force, overturning moment and radial force at the same time, low speed and heavy load, gear transmission is adopted, and the working environment is extremely harsh. The slewing bearing is equivalent to the kinematic joint of the equipment. Once it fails, it will cause the failure of the whole machine, or even a ma...

AI Technical Summary

Problems solved by technology

However, due to the changeable and complex working conditions of the slewing bearing and the dynamic changes in the wear state, the requirements for the amount of grease injection and the frequency of injection are different under different working conditions. Regular lubrication may easily lead to insufficient grease injection, thereby affecting the lubrication effect, or Excessive leakage causes environmental pollution and waste

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