On-line automatic sampling device for lubrication oil of engine test bench

Abstract

The invention provides an on-line automatic sampling device for lubrication oil of an engine test bench. The on-line automatic sampling device comprises an oil conduit, a solenoid valve, a sampler, a fixing support and a controller, wherein the solenoid valve is installed at the tail end of the oil conduit, and the oil output pipe of the solenoid valve is inserted into the sampler; the sampler is fixed on the fixing support, and comprises a sampling barrel of which the upper end is opened, a rotary table center shaft which can be rotationally and vertically fixed, a rotary table fixed on the rotary table center shaft, oil sample bottles fixed on the rotary table and a transmission gear and a small motor in transmission connection with the rotary table; the small motor and the solenoid valve are both in signal connection with the controller. According to the on-line automatic sampling device for the lubrication oil of the engine test bench disclosed by the invention, continuous sampling of suspicious oil sample operating points is realized through automatic rotation of the rotary table, the entire device is placed in a test room, the sampling is remotely controlled through the controller, and deceleration and load reduction of an engine are not required while sampling to improve the safety of sampling personnel.

Description

technical field [0001] The invention belongs to the technical field of engine fault monitoring, and in particular relates to an online automatic sampling device for lubricating oil on an engine test bench. Background technique [0002] The engine is a kind of machine with many friction pairs, complex lubrication state, and various types of components. During the operation of the engine, the cylinder, piston, crankshaft, bearing and other components will wear out, and the wear products will enter the lubricating oil in a suspended state. It contains a wealth of information about the wear status of components and the operating state of the engine. Through the oil analysis of its internal lubricating oil, it is of great significance to realize its condition monitoring and fault diagnosis without disassembling the engine, which is of great significance for guiding maintenance work and improving engine design level. Oil analysis is the main method for engine fault monitoring, an...

AI Technical Summary

Problems solved by technology

Both the first two sampling methods have a major disadvantage: they cannot be sampled while the engine is running, which affects the timeliness and accuracy of the oil taken. Although the latter method achieves on-line sampling, it has longer oil pipelines and different The sampling time also affects the accuracy of the oil taken

Images