Lubrication oil channel of same-direction parallel double-screw extruder gear reduction gear box

Abstract

The invention discloses a lubrication oil channel of a same-direction parallel double-screw extruder gear reduction gear box. The lubrication oil channel comprises a reduction gear box body, a middlebox body and an output box body. The reduction gear box body is provided with a rear end oil inlet, a top oil inlet and a bottom oil outlet. The middle box body is provided with a top oil inlet, and the output box body is provided with a top oil inlet and a side oil returning port. The bottom oil outlet is connected with a lubrication oil coarse strainer through a ball valve, the lubrication oil coarse strainer is connected with a lubrication oil pump, the lubrication oil pump is connected with a T-junction III, and the T-junction III is connected with a T-junction IV and a lubrication oil fine strainer. The T-junction IV is connected with an anti-vibration oil pressure gauge and a retaining valve. The retaining valve is connected with the side oil returning port, the lubrication oil coarse strainer is connected with a plate type heat exchanger, and the plate type heat exchanger is connected with the oil inlets through branched oil pipelines. According to the lubrication oil channel ofthe same-direction parallel double-screw extruder gear reduction gear box, lubrication oil can be effectively cooled, oil pipeline conditions can be conveniently detected and judged in real time, anddamage of gears and bearings of the reduction gear box is avoided.

Description

technical field [0001] The invention relates to a twin-screw extruder, in particular to a lubricating oil path for a gear reduction box of a co-rotating parallel twin-screw extruder. Background technique [0002] Co-rotating parallel twin-screw extruder gear reducer due to its large transmission power and high speed requires that the lubricating oil circuit can effectively lubricate and cool the gears and bearings to ensure the continuous and stable long-term operation of the gear reducer. The traditional parallel twin-screw extruder gear reducer adopts oil-immersed lubrication, and the lubricating oil pump pumps the lubricating oil from the bottom of the reducer, passes through the filter to the multi-tube water-cooled heat exchanger, and returns the lubricating oil to the gear reducer after cooling . Its disadvantages are: 1. The heat exchange efficiency of the multi-tube water-cooled heat exchanger is low. 2. The gears and bearings cannot be effectively lubricated, and ...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. The heat exchange efficiency of the multi-tube water-cooled heat exchanger is low

2. The gears and bearings cannot be effectively lubricated, and when the oil level is low, the gears and bearings will be damaged due to lack of oil

3. It cannot effectively remove the metal fines mixed in the lubricating oil from the gear reducer, which will affect the service life of the gears and bearings

4. When the oil pressure is low or no oil pressure due to lack of oil, high oil temperature or failure of the lubricating oil pump, the corresponding alarm signal cannot be output and the gear reduction box cannot be effectively protected

5. When the filter is blocked by impurities and the oil pressure is too high, the corresponding alarm signal cannot be output to remind the operator to clean the filter immediately, and the lubricating oil pump will be damaged due to the high oil pressure

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