Leakage-proof speed reducer lubricating grease composition and preparation method thereof

Abstract

The invention relates a speed reducer lubricating grease composition and a preparation method thereof. The composition comprises 69 to 80 percent of mineral base oil, 12 to 23 percent of ester base oil, 3.2 to 6 percent of thickening agent, 0.6 to 2 percent of dinonyl sulfonate or zinc naphthenate, and 1 to 2.8 percent of solid wear-resistance additive. The preparation method comprises: adding the mineral base oil into a reaction kettle, adding fatty acid, mixing, raising temperature to 80 to 85 DEG C, adding an aqueous solution of lithium hydroxide, heating to 90 to 100 DEG C, and performingsaponification for 1 to 2 hours; raising temperature to 210 DEG C, adding the mineral base oil into the reaction kettle, and quenching, wherein the quenching temperature is kept between 140 to 190 DEG C, and the quenching oil accounts for 14 to 43 percent of the total amount of the base oil; adding the ester base oil, and cooling; when the temperature is below 100 DEG C, adding the dinonyl sulfonate or zinc naphthenate, cooling to a temperature below 80 DEG C, and adding the solid wear-resistance additive; and cooling to a temperature below 60 DEG C, rolling oil by a three-roll machine for three times and filling to obtain finished speed reducer lubricating grease composition. In the invention, the lubricating grease is prepared by one-step direct reaction, the process and equipment are simple and energy-saving, and the quality of the product produced by the process is stable.

Description

technical field [0001] The invention relates to reducer lubricating grease, more precisely to a leak-proof reducer grease composition and a preparation method thereof, which has good leak-proof performance. Background technique [0002] The reducer is generally used for transmission equipment with low speed and high torque. It can reduce the power of the electric motor, internal combustion engine or other high-speed operation through the gear with a small number of teeth on the input shaft of the reducer and the large gear on the output shaft to achieve the purpose of deceleration. The specific mechanism is to use the speed converter of the gear to reduce the number of revolutions of the motor to the desired number of revolutions and obtain a larger torque. There are many types of reducers, which can be divided into gear reducers, worm gear reducers, cycloid reducers, screw lifters, stepless speed changers, high-power gear reducers and planetary reducers according to the tra...

AI Technical Summary

Problems solved by technology

[0003] Reducer oil leakage is a common problem in various enterprises, which not only increases the consumption cost of lubricating oil for enterprises, increases the labor intensity of workers, increases the probability of equipment damage, but also causes hidden dangers of major equipment accidents

The reasons for the oil leakage of the closed reducer are mainly as follows: the accumulation of heat generated by the gear meshing significantly increases the pressure in the box, forcing the lubricating oil to seep out; the sealing technology cannot meet the requirements for use; the structure design of the reducer is unreasonable, and the oil return is not smooth; The use environment is harsh, vibration, high and low temperature, and open-air use environment accelerate the aging of components, etc.

In order to deal with the oil leakage problem of the reducer, various enterprises have adopted various countermeasures from the mechanical point of view, but the effect is not obvious

[0004] This patent aims to invent a special grease for reducer by adjusting the formula and process of grease, so as to alleviate the oil leakage problem of reducer caused by the design and use characteristics to a certain extent

[0005] Through literature and patent inquiries, there are no literature and patent reports on leak-proof reducer grease at home and abroad.