Compression-resistant gear oil

Abstract

The invention discloses a compression-resistant gear oil, which is prepared from the following raw materials by weight: 15-22 parts of glycerin, 10-17 parts of mineral oil mixture, 2.5-7.3 parts of maleic anhydride, 2.3-6.5 parts of sodium carbonate, 2.3-4.6 parts of ten carbon diacid and 1.2-6.3 parts of potassium borate. Compared with the existing gear oil, the compression-resistant gear oil has the advantages of good antioxidant corrosion resistance, good corrosion, long oil change cycle, reduction in emission of waste oil, waste gas and particulates, good biodegradability and low price compared with a traditional lubricating oil. At the same time, the compression-resistant gear oil can rapidly form a wear-resistant, high temperature-resistant and extrusion-resistant boundary lubricating oil film on a heavy-load industrial gear under high speed, low speed, heavy load, high torque or impact load, so as to prevent the tooth surface from destroy phenomena such as wear, abrasion, gluing and pitting, and prolong the service life of the heavy load industrial gear.

Description

technical field [0001] The invention relates to a pressure-resistant gear oil, which belongs to the field of industrial chemical industry. Background technique [0002] At present, external gear oil pumps at home and abroad, especially high-pressure gear oil pumps, mostly use cast iron shells and DU bearing structures. The DU bearings supporting the journals of the main and The sealing method of automatic axial clearance compensation is mainly based on completely isolating the high-pressure oil from the low-pressure bearing cavity. Even if the new DU bearing (carbon steel-based gear pump self-lubricating bearing) is lubricated by oil, the highest PV value reaches 60N / mm2·m / s, the maximum linear velocity V reaches 10m / s, and due to the insufficient amount of lubricating oil, the performance of DU bearings cannot be fully utilized, which will cause bearing ablation and damage or reduce the service life, resulting in the service life of the high-pressure gear pump short. Co...

AI Technical Summary

Problems solved by technology

[0002]At present, most of the external gear oil pumps at home and abroad, especially high-pressure gear oil pumps, adopt cast iron shells and DU bearing structures, and the DU bearings supporting the journals of the main and slave gear shafts It is an important part that determines the rated pressure and life of the gear pump. However, due to the sealing method of automatic axial clearance compensation, it is mainly to completely isolate the high-pressure oil from the low-pressure bearing chamber. Even if the new DU bearing (carbon steel-based gear pump self-lubricating Bearing) under the condition of oil lubrication, the highest PV value reaches 60N / mm2 m / s, and the maximum linear velocity V reaches 10m / s. Also due to insufficient lubricating oil, the performance of DU bearings cannot be fully utilized, making the bearing Destruction or reduced service life due to ablation, resulting in short service life of high pressure gear pumps