ABSTRACT
Heavy duty of drilling equipment places high demands on modes of operation, loads, fuel and lubricants. Physical-chemical properties of oils change significantly faster than equipment failure occurs. With the development of pre-failure condition in equipment, the content of wear products in oil of the reduction gear unit and oil temperature increase dramatically. Downtime of drilling machines due to failures and faults of main assemblies (reduction gear unit) amount to 26.05% of the total downtime. Temperature behavior of the reduction gear unit is related to its technical conditions ranging from functional to limiting or critical. The article presents data on an analysis of operation of construction drilling machinery for pile installation in geotechnical conditions of Saint Petersburg in cluttered urban settings. It is suggested to improve the technology of well drilling by monitoring uninterrupted operation of the drilling machine reduction gear unit using a system of thermal sensors.
