Lubricating oil viscosity detection device

The utility model relates to a lubricating oil viscosity detection device, which comprises a box body, a heating mechanism, a stirring mechanism and a viscosity detector, the inner cavity of the box body comprises a stirring cavity, an equipment cavity and a detection cavity from top to bottom, and a PLC (Programmable Logic Controller) for controlling the whole operation of the device is also arranged on the outer side of the heating mechanism. Lubricating oil is injected into the stirring cavity through the oil inlet pipe, the PLC controls the heating mechanism to heat the lubricating oil and controls the stirring mechanism to operate to stir the lubricating oil, and the lubricating oil is injected into the detection cavity after stirring is completed. Lubricating oil is pushed to the detection end of the viscosity detector for viscosity detection by pushing the piston block upwards, and the lubricating oil flows back and forth in the detection cavity due to the up-down reciprocating motion of the movable ro