CN116891778A - Elevator traction machine lubricating oil and preparation method and application thereof - Google Patents

Abstract

The invention provides an elevator traction machine lubricating oil and its preparation method and application, belonging to the technical field of elevator traction machine lubrication. In the present invention, the elevator traction machine lubricating oil includes a base material and an anti-foaming agent. The mass of the anti-foaming agent is 0.001 to 0.02% of the mass of the base material; the base material includes the following components in mass percentage: Water-soluble polyalkylene glycol 87.7~96.1%, oil-soluble polyether 3.0~10.0%, antioxidant 0.3~0.8%, metal passivator 0.05~0.1%, extreme pressure anti-wear agent 0.3~0.8%, minus Friction agent 0.2~0.5%, rust inhibitor 0.05~0.1%; the extreme pressure anti-wear agent is tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphate dodecylamine Salt; the friction reducing agent is an inactive borate ester and an oil-soluble organic molybdenum salt. The elevator traction machine lubricating oil provided by the invention has excellent comprehensive performance.

Description

Elevator traction machine lubricating oil and its preparation method and application

Technical field

The present invention relates to the technical field of elevator traction machine lubrication, and in particular to an elevator traction machine lubricating oil and its preparation method and application.

Background technique

Elevators are divided into two categories: lifts and escalators. All types of elevators usually include eight major components: traction system, guidance system, car, door system, weight balance system, electric drive system, electrical control system, and safety protection system.

For toothed traction elevators, the function of the reduction gearbox of the traction system is to reduce the output speed of the traction machine and increase the output torque. There are many types of reduction gearbox structures for traction systems, the commonly used ones are worm gear type, bevel gear type and planetary gear type. The worm gears of worm gear traction machines are mostly made of wear-resistant bronze, and the worms are made of surface carburized and quenched alloy steel. The sliding between the worm transmission tooth surfaces is large, the tooth surface contact time is long, and the friction and wear are prominent.

Before the 1980s, the overall oil consumption level in the elevator industry was not high, and a large amount of ordinary gear oil, mechanical oil, etc. were used in worm gear traction machines. With the development of elevator technology, the structure of traction machine gearboxes has become increasingly compact, the elevator speed has continued to increase, and the load has become larger and larger. These oils can no longer meet the new lubrication requirements. As a result, some traction machine worm gears have also appeared. The worm pair is worn, and accidents such as gluing and rod holding may even occur. By the late 1980s, ordinary worm gear oil and extreme pressure worm gear oil were successfully developed in China, which met the oil needs of the metallurgical system to a certain extent and also alleviated the shortage of lubricating oil for elevator traction machines. Therefore, they were used by elevators. It is widely used in the industry, but the development of this oil at that time was to meet the lubrication of the worm gear pair of the large-scale rolling mill reduction system introduced by the metallurgical system. The actual working conditions of the elevator traction machine as well as the material, load parameters and other factors were not fully considered. , so some problems that are not suitable for elevator traction machines are exposed during use, such as corrosion, low transmission efficiency, insufficient load-bearing capacity, etc. In order to change this situation, some companies have developed mineral-type elevator special oil based on extreme pressure worm gear oil. It has better oil properties, improves transmission efficiency than general extreme pressure worm gear oil, and minimizes By eliminating the corrosion of the copper parts of the worm gear, the life of the traction machine worm gear can be greatly extended, and the quality reaches the level of similar foreign products. It is currently widely used in China.

With the continuous updating of elevator traction machine technology, elevator traction machine lubricating oil products in the market are also constantly being upgraded. At present, the oil used in elevator traction machines has completed the transformation from mineral type to synthetic type. According to the type of base oil, synthetic elevator oil includes polyalpha olefin (PAO) lubricating oil and polyalkylene glycol (PAG). Type lubricants, among which polyalkylene glycol type lubricants are more commonly used due to their higher viscosity index and better high temperature performance. However, the oxidation stability, rust prevention and friction reducing properties of polyalkylene glycol (PAG) elevator traction machine oils still need to be improved.

Contents of the invention

The object of the present invention is to provide an elevator traction machine lubricating oil and its preparation method and application. The elevator traction machine lubricating oil provided by the invention has excellent comprehensive properties, including excellent oxidation stability, rust prevention and friction reducing properties. , and also has excellent viscosity-temperature properties and extreme pressure and wear resistance.

In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

The invention provides an elevator traction machine lubricating oil, which includes a base material and an anti-foaming agent, and the mass of the anti-foaming agent is 0.001 to 0.02% of the mass of the base material;

The matrix material includes the following components in mass percentage:

Water-soluble polyalkylene glycol 87.7~96.1%, oil-soluble polyether 3.0~10.0%, antioxidant 0.3~0.8%, metal passivator 0.05~0.1%, extreme pressure anti-wear agent 0.3~0.8%, minus Friction agent 0.2~0.5%, rust inhibitor 0.05~0.1%;

The extreme pressure anti-wear agent is tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphate dodecaamine salt;

The friction reducer is an inactive borate ester and an oil-soluble organic molybdenum salt.

Preferably, the mass ratio of the tri-dodecyl dodecyl quaternary phosphonium salt docusate ionic liquid and the dioctyl phosphate dodecylamine salt is 1 to 3:1.

Preferably, the inactive borate ester is a boron amide complex, and the oil-soluble organic molybdenum salt is molybdenum dialkyldithiocarbamate.

Preferably, the mass ratio of the inactive borate ester to molybdenum dialkyldithiocarbamate is 1.0-1.5:1.0.

Preferably, the water-soluble polyalkylene glycol includes synthetic oil SDM-03C and synthetic oil SDM-08D; the 40°C kinematic viscosity of the water-soluble polyalkylene glycol is 40 to 2200 mm ² /s.

Preferably, the 40°C kinematic viscosity of the oil-soluble polyether is 15 to 250 mm ² /s; the raw materials for preparing the oil-soluble polyether include monomers and initiators, and the monomers include butylene oxide and epoxy. Propane, the initiator is an alcohol compound.

Preferably, the antioxidant is alkylphenol and alkylaniline, and the mass ratio of the alkylphenol to alkylaniline is 1 to 3:1.

Preferably, the metal passivating agent is a benzene triazole derivative; the rust inhibitor is heptadecenyl imidazolinyl succinate; the anti-foaming agent is a silicone-type antifoaming agent and a non-silicon-type antifoaming agent. Antifoaming agent.

The present invention provides a method for preparing lubricating oil for elevator traction machines described in the above technical solution, which includes the following steps:

Mix water-soluble polyalkylene glycol, oil-soluble polyether, antioxidant, metal passivator, extreme pressure anti-wear agent, friction reducer, anti-rust agent and anti-foaming agent to obtain elevator traction machine lubricating oil .

The present invention provides the application of the elevator traction machine lubricating oil described in the above technical solution or the elevator traction machine lubricating oil prepared by the preparation method described in the above technical solution in the lubrication of the worm gear pair transmission system of the elevator traction machine.

The invention provides an elevator traction machine lubricating oil, which includes a base material and an anti-foaming agent. The mass of the anti-foaming agent is 0.001 to 0.02% of the mass of the base material; the base material includes the following mass percentages Components: water-soluble polyalkylene glycol 87.7~96.1%, oil-soluble polyether 3.0~10.0%, antioxidant 0.3~0.8%, metal passivator 0.05~0.1%, extreme pressure anti-wear agent 0.3~ 0.8%, friction reducing agent 0.2~0.5%, rust inhibitor 0.05~0.1%; the extreme pressure anti-wear agent is tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphoric acid Ester dodecamine salt; the friction reducing agent is an inactive borate ester and an oil-soluble organic molybdenum salt. The present invention uses water-soluble polyalkylene glycol and oil-soluble polyether as base oil components. While making full use of the excellent viscosity-temperature properties, thermal conductivity and thermal oxidation stability of polyalkylene glycol, it also improves the performance when used alone. The disadvantages of polyalkylene glycol include poor compatibility of sealing materials and poor solubility of other additives make the base oil components maintain good comprehensive properties. The present invention uses tri-dodecyl dodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphate dodecylamine salt as extreme pressure anti-wear agents, which reduces the use of active sulfur and is beneficial to protecting the elevator traction machine. Copper parts solve the contradiction between the extreme pressure properties and corrosion resistance of lubricating oil. The invention uses inactive borate ester and oil-soluble organic molybdenum as friction reducing agents, which can reduce the friction coefficient and traction coefficient of lubricating oil and thereby improve transmission efficiency. The invention introduces multiple functional additives such as antioxidants, metal passivators, extreme pressure anti-wear agents, friction reducers, anti-rust agents and anti-foaming agents. There are extremely complex interactions between different additives. By controlling the appropriateness of each additive The addition amount makes the lubricating oil have excellent viscosity-temperature properties and excellent thermal oxidation stability, which can prevent the formation of sludge. It also has excellent anti-wear protection properties, low friction coefficient and traction coefficient, and is anti-corrosion and anti-rust. Excellent performance, combined with high thermal conductivity and low pour point. The elevator traction machine lubricating oil provided by the invention can be used for the lubrication of the worm gear transmission system of the elevator traction machine. It has reasonable raw material compatibility, simple preparation method and wide application range.

Detailed ways

The invention provides an elevator traction machine lubricating oil, which includes a base material and an anti-foaming agent, and the mass of the anti-foaming agent is 0.001 to 0.02% of the mass of the base material;

The matrix material includes the following components in mass percentage:

Water-soluble polyalkylene glycol 87.7~96.1%, oil-soluble polyether 3.0~10.0%, antioxidant 0.3~0.8%, metal passivator 0.05~0.1%, extreme pressure anti-wear agent 0.3~0.8%, minus Friction agent 0.2~0.5%, rust inhibitor 0.05~0.1%;

The extreme pressure anti-wear agent is tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphate dodecaamine salt;

The friction reducer is an inactive borate ester and an oil-soluble organic molybdenum salt.

In the present invention, unless otherwise specified, all preparation raw materials used are commercially available products well known to those skilled in the art or can be prepared by methods well known to those skilled in the art.

The elevator traction machine lubricating oil provided by the present invention includes a base material and an anti-foaming agent. In terms of mass percentage, the base material in the elevator traction machine lubricating oil includes water-soluble polyalkylene glycol (PAG). 87.7 to 96.1%, preferably 90.0 to 95.0%, more preferably 92.0 to 93.0%. In the present invention, the 40°C kinematic viscosity of the water-soluble polyalkylene glycol is preferably 40 to 2200 mm ² /s, more preferably 50 to 1500 mm ² /s, further preferably 90 to 1150 mm ² /s, and then More preferably, it is ^{99.08-1042mm2} /s. In the present invention, the raw materials for preparing the water-soluble polyalkylene glycol preferably include ethylene oxide and propylene oxide, and the molar ratio of the ethylene oxide and propylene oxide is preferably 50-70:30- 50. In the present invention, the water-soluble polyalkylene glycol preferably includes synthetic oil SDM-03C and synthetic oil SDM-08D, and the mass ratio of the synthetic oil SDM-03C to synthetic oil SDM-08D is preferably 1:1.2 ~7.6, more preferably 1:2.0~5.0, even more preferably 1:2.9~3.3. In the embodiment of the present invention, the synthetic oil SDM-03C and synthetic oil SDM-08D were purchased from Nanjing Weir Chemical Co., Ltd.

In terms of mass percentage, the base material in the elevator traction machine lubricating oil of the present invention includes 3.0 to 10.0% of oil-soluble polyether (OSP), preferably 4.0 to 8.0%, and further preferably 5.0 to 6.0%. In the present invention, the 40°C kinematic viscosity of the oil-soluble polyether is preferably 15 to 250 mm ² /s, more preferably 20 to 50 mm ² /s, and further preferably 29 to 35 mm ² /s. In the present invention, the raw materials for preparing the oil-soluble polyether preferably include monomers and initiators; the monomers preferably include butylene oxide and propylene oxide, and the molar ratio of the butylene oxide to propylene oxide The ratio is preferably 40 to 60: 40 to 60; the initiator is preferably an alcohol compound, and more preferably n-butanol. In the present invention, the oil-soluble polyether is preferably synthetic oil OSP32. In the embodiment of the present invention, the synthetic oil OSP32 was purchased from Nanjing Gutian Chemical Co., Ltd., and its kinematic viscosity at 40°C was 31.35mm ² /s.

The present invention uses water-soluble polyalkylene glycol and oil-soluble polyether as base oil components, both of which are synthetic oils. It makes full use of the excellent viscosity-temperature properties, thermal conductivity properties and thermal oxidation stability of polyalkylene glycol. At the same time, it also improves the disadvantages of poor compatibility of sealing materials and poor solubility of other additives when polyalkylene glycol is used alone, so that the base oil component maintains good overall performance.

In terms of mass percentage, the base material in the elevator traction machine lubricating oil of the present invention includes 0.3% to 0.8% of antioxidants, preferably 0.50% to 0.75%. In the present invention, the antioxidant is preferably alkylphenol and alkylaniline; the mass ratio of the alkylphenol and alkylaniline is preferably 1 to 3:1, and more preferably 1.5 to 2:1. In the present invention, the alkyl phenol is preferably 2,6-di-tert-butyl-p-cresol; the alkyl aniline is preferably butyl octyl diphenylamine. In the present invention, the 2,6-di-tert-butyl p-cresol is preferably T501 from Jinzhou Kangtai Lubricating Oil Additive Co., Ltd., and the butoctyl diphenylamine is preferably IRGANOX L57 from BASF Company. The present invention preferably uses 2,6-di-tert-butyl-p-cresol and butyloctyl diphenylamine as antioxidants. The synergy between the two can improve the antioxidant performance of lubricating oil, prevent premature oxidation decline, and extend the oil change cycle and service life.

In terms of mass percentage, the base material in the elevator traction machine lubricating oil of the present invention includes 0.05% to 0.1% of metal passivating agent, preferably 0.06% to 0.09%, and more preferably 0.07% to 0.08%. In the present invention, the metal passivating agent is preferably a benzotriazole derivative, and the benzotriazole derivative is preferably N,N-bis(2-ethylhexyl)-4-methyl-benzotriazole. -1-Methylamine. In the present invention, the N,N-bis(2-ethylhexyl)-4-methyl-benzotriazole-1-methylamine is preferably Irgamet 39 from BASF Company. The present invention preferably uses benzene triazole derivatives as metal passivators, which can improve the anti-corrosion protection of lubricating oil on the copper components of the worm gear and worm gear of the elevator traction machine.

In terms of mass percentage, the base material in the elevator traction machine lubricating oil of the present invention includes 0.3% to 0.8% of extreme pressure anti-wear agent, preferably 0.50% to 0.75%. In the present invention, the extreme pressure anti-wear agent is tri-dodecyl dodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphate dodecylamine salt. The mass ratio of the dodecyl quaternary phosphonium salt docusate ionic liquid and the dioctyl phosphate dodecylamine salt is preferably 1 to 3:1, and more preferably 1.5 to 2:1. In the present invention, the dioctyl phosphate dodecaamine salt is preferably Irgalube 349 from BASF Company. The present invention has no special restrictions on the source of the tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid, which can be prepared by methods well known to those skilled in the art (Fan Mingjin, Yang Desuo, Wang Xiaoling ,et al.DOSS-Based QAILs:AsBoth Neat Lubricants and Lubricant Additives with ExcellentTribologicalProperties and Good Detergency.Industrial&Engineering Chemistry Research,2014,53(46):17952-17960). The present invention uses tri-dodecyl dodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphate dodecylamine salt as extreme pressure anti-wear agents, and the two have a good positive synergistic effect with each other. , greatly improves the extreme pressure and anti-wear performance, and does not contain active sulfur components, which is beneficial to protecting the copper parts of the elevator traction machine and solving the contradiction between extreme pressure and corrosion resistance.

In terms of mass percentage, the base material in the elevator traction machine lubricating oil of the present invention includes 0.2% to 0.5% of friction reducer, preferably 0.30% to 0.45%. In the present invention, the friction reducing agent is an inactive borate ester and an oil-soluble organic molybdenum salt; the mass ratio of the inactive borate ester and the oil-soluble organic molybdenum salt is preferably 1.0 to 1.5:1.0, and more preferably 1.00~1.25: 1.00. In the present invention, the inactive boric acid ester is preferably a boron amide complex; in the embodiment of the present invention, the inactive boric acid ester is specifically Vanlube 289 of Vanderbilt Company. In the present invention, the oil-soluble organic molybdenum salt is preferably molybdenum dialkyldithiocarbamate; in the embodiment of the present invention, the molybdenum dialkyldithiocarbamate is preferably SAKURA-Dialkyldithiocarbamate from ADEKA. LUBE 525. The invention uses inactive borate ester and oil-soluble organic molybdenum as friction reducing agent, has good friction reducing performance, can reduce the friction coefficient and traction coefficient of lubricating oil, and can improve the transmission efficiency of the elevator traction machine in practical applications. , and has good compatibility with other additives.

In terms of mass percentage, the base material in the elevator traction machine lubricating oil of the present invention includes 0.05% to 0.1% of rust inhibitor, preferably 0.06% to 0.08%. In the present invention, the rust preventive agent is preferably heptadecene imidazolinyl succinate; in the embodiment of the present invention, the heptadecene imidazolinyl succinate is specifically Shanghai T703 from Midgard Chemical Co., Ltd. The present invention preferably uses heptadecenyl imidazolinyl succinate as the anti-rust agent, which not only has good anti-rust performance, but also has good compatibility with other additives.

The elevator traction machine lubricating oil of the present invention includes an anti-foaming agent, and the mass of the anti-foaming agent is 0.001 to 0.02% of the mass of the base material, preferably 0.005 to 0.01%. In the present invention, the anti-foaming agent is preferably a silicone-type antifoaming agent and a non-silicon-type antifoaming agent; the silicone-type antifoaming agent is preferably polymethyl silicone oil; the non-silicon-type antifoaming agent is preferably polymethyl silicone oil. Acrylate. In the present invention, the mass ratio of the silicone antifoam agent and the non-silicon antifoam agent is preferably 1 to 3:1 to 3, and more preferably 1 to 2:1 to 2. In the present invention, the silicone antifoaming agent polymethyl silicone oil is preferably T901 from Shanghai Shenpu Fine Chemical Factory, and the non-silicon antifoaming agent polyacrylate is preferably T912 from Shanghai Shenpu Fine Chemical Factory. The present invention limits the amount of anti-foaming agent to the above range, which can maintain a certain foam characteristic and avoid dry friction caused by bubbles in the lubricating oil during use, causing the oil film to be destroyed.

The present invention provides a method for preparing lubricating oil for elevator traction machines described in the above technical solution, which includes the following steps:

Mix water-soluble polyalkylene glycol, oil-soluble polyether, antioxidant, metal passivator, extreme pressure anti-wear agent, friction reducer, anti-rust agent and anti-foaming agent to obtain elevator traction machine lubricating oil .

In the present invention, it is preferred to mix water-soluble polyalkylene glycol and oil-soluble polyether to obtain a base oil component; add the antioxidant, metal to the base oil component under stirring conditions at 60-80°C After adding the passivating agent, extreme pressure anti-wear agent, anti-friction agent, anti-rust agent and anti-foaming agent, continue to stir at 60-80°C for 3-5 hours to make the resulting mixture uniform and transparent. After cooling, the elevator traction is obtained Machine lubricant. In the embodiment of the present invention, the mixing is preferably performed in a stainless steel blending kettle with a stirrer.

The present invention provides the application of the elevator traction machine lubricating oil described in the above technical solution or the elevator traction machine lubricating oil prepared by the preparation method described in the above technical solution in the lubrication of the worm gear pair transmission system of the elevator traction machine.

The technical solutions in the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Some of the raw material sources involved in the following examples and comparative examples include:

Water-soluble polyalkylene glycol includes synthetic oil SDM-03C and synthetic oil SDM-08D, both purchased from Nanjing Weil Chemical Co., Ltd. The 40°C kinematic viscosity of synthetic oil SDM-03C is 99.08mm ² /s. The 40°C kinematic viscosity of oil SDM-08D is 1042mm ² /s;

Oil-soluble polyether (OSP) synthetic oil OSP32 was purchased from Nanjing Gutian Chemical Co., Ltd., with a kinematic viscosity of 31.35mm ² /s at 40°C;

2,6-di-tert-butyl-p-cresol is T501 from Jinzhou Kangtai Lubricating Oil Additive Co., Ltd.;

Butyl octyl diphenylamine is IRGANOX L57 from BASF;

N,N-bis(2-ethylhexyl)-4-methyl-benzotriazole-1-methylamine is Irgamet 39 from BASF;

The dioctyl phosphate dodecaamine salt is Irgalube 349 from BASF;

The inactive borate ester is Vanlube 289 from Vanderbilt Company;

Molybdenum dialkyldithiocarbamate is SAKURA-LUBE 525 from ADEKA;

Heptadecenyl imidazolinyl succinate is T703 from Shanghai Midgard Chemical Co., Ltd.;

The silicone anti-foaming agent polymethyl silicone oil is T901 from Shanghai Shenpu Fine Chemical Factory;

The non-silicon anti-foaming agent polyacrylate is T912 from Shanghai Shenpu Fine Chemical Factory;

The preparation method of tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid is as follows:

Add an equal molar amount of tri-dodecylphosphorus and dodecyl bromide to a three-necked round-bottom flask and add acetonitrile as the solvent. React in an inert gas at 70°C for 8 hours. After the reaction is completed, the solvent is removed by rotary evaporation. Obtain a bright yellow oily viscous liquid, recorded as P _12121212Br ; add an equimolar amount of P _12121212Br and sodium diisooctyl phosphate into a three-necked round-bottomed flask, and add absolute ethanol to dissolve the P _12121212Br and diisooctyl phosphate. The sodium is completely dissolved, and the reaction is fully stirred at 50°C for 8 hours. After the reaction is completed, dichloromethane is added to dissolve the resulting product system, washed with distilled water, then dried with anhydrous sodium sulfate, filtered, and the filtrate is distilled under reduced pressure to remove the solvent to obtain The light yellow transparent oily liquid is tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid.

The elevator traction machine lubricating oil in the following examples and comparative examples was prepared in a stainless steel blending kettle with a stirrer.

Example 1

Add 60.1g water-soluble polyalkylene glycol synthetic oil SDM-08D and 10.0g oil-soluble polyether synthetic oil OSP32 to 27.6g water-soluble polyalkylene glycol synthetic oil SDM-03C, and raise the temperature to 70±5℃ And stir, then add 0.60g of 2,6-di-tert-butyl-p-cresol, 0.20g of butoctyldiphenylamine, and 0.1g of N,N-bis(2-ethylhexyl)-4-methyl - Benzotriazole-1-methylamine, 0.60g of tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid, 0.20g of dioctylphosphate dodecaamine salt, 0.30g of non- Active borate ester, 0.20g of molybdenum dialkyldithiocarbamate, 0.1g of heptadecenyl imidazolinyl succinate, 0.0133g of silicone antifoam agent polymethyl silicone oil and 0.0067g of non- Stir the silicone anti-foaming agent polyacrylate for 3 hours at 70±5°C and cool to room temperature (25°C) to obtain the elevator traction machine lubricating oil.

Example 2

Add 71.1g water-soluble polyalkylene glycol synthetic oil SDM-08D and 5.0g oil-soluble polyether synthetic oil OSP32 to 21.8g water-soluble polyalkylene glycol synthetic oil SDM-03C, and raise the temperature to 70±5℃ And stir, then add 0.50g of 2,6-di-tert-butyl-p-cresol, 0.25g of butoctyldiphenylamine, and 0.07g of N,N-bis(2-ethylhexyl)-4-methyl - Benzotriazole-1-methylamine, 0.50g of tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid, 0.25g of dioctylphosphate dodecamine salt, 0.25g of non- Active borate ester, 0.20g molybdenum dialkyldithiocarbamate, 0.08g heptadecenyl imidazolinyl succinate, 0.005g silicone antifoam agent polymethyl silicone oil and 0.005g non- Stir the silicone anti-foaming agent polyacrylate for 3 hours at 70±5°C and cool to room temperature (25°C) to obtain the elevator traction machine lubricating oil.

Example 3

Add 71.6g water-soluble polyalkylene glycol synthetic oil SDM-08D and 3.0g oil-soluble polyether synthetic oil OSP32 to 24.5g water-soluble polyalkylene glycol synthetic oil SDM-03C, and raise the temperature to 70±5℃ And stir, then add 0.15g of 2,6-di-tert-butyl-p-cresol, 0.15g of butoctyldiphenylamine, and 0.05g of N,N-bis(2-ethylhexyl)-4-methyl - Benzotriazole-1-methylamine, 0.15g of tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid, 0.15g of dioctylphosphate dodecaamine salt, 0.10g of non- Active borate ester, 0.10g of molybdenum dialkyldithiocarbamate, 0.05g of heptadecenyl imidazolinyl succinate, 0.0003g of silicone antifoam agent polymethyl silicone oil and 0.0007g of non- Stir the silicone anti-foaming agent polyacrylate for 3 hours at 70±5°C and cool to room temperature (25°C) to obtain the elevator traction machine lubricating oil.

Comparative example 1

Elevator traction machine lubricating oil was prepared according to Example 3, except that 0.15g of tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid and 0.15g of dioctyl phosphate dodecyl phosphate were mixed. Amine salt, replaced with 0.30 g of dioctyl phosphate dodecaamine salt.

Comparative example 2

Elevator traction machine lubricating oil was prepared according to Example 3, except that 0.10 g of inactive borate ester and 0.10 g of molybdenum dialkyldithiocarbamate were replaced with 0.20 g of dialkyl disulfide. Substitute molybdenum carbamate.

Comparative example 3

Elevator traction machine lubricating oil was prepared according to Example 3, except that 0.15g of tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid and 0.15g of dioctyl phosphate dodecyl phosphate were mixed. The amine salt was replaced with 0.15g of tri-dodecylmethyl quaternary ammonium salt docusate ionic liquid and 0.15g of dioctyl phosphate stearylamine salt.

Performance tests were conducted on the elevator traction machine lubricants prepared in the Examples and Comparative Examples. The results are shown in Table 1.

Table 1 Performance test results of elevator traction machine lubricants prepared in Examples and Comparative Examples

As can be seen from Table 1, the elevator traction machine lubricating oil provided by the present invention has excellent viscosity-temperature properties and excellent thermal oxidation stability, can effectively prevent the formation of sludge, and has excellent anti-wear protection performance and low friction coefficient. It has excellent anti-corrosion and anti-rust properties, has a low pour point, and has good anti-foaming properties and rubber compatibility. At the same time, compared with Comparative Example 1, the elevator traction machine lubricating oil prepared in Example 3 has excellent extreme pressure and anti-wear properties, indicating that the present invention uses tri-dodecyldodecyl quaternary phosphonium salt docusate ionic liquid and The compounding of dioctyl phosphate dodecaamine salt can produce a better positive synergistic effect and greatly improve the extreme pressure and anti-wear performance of lubricating oil; compared with Comparative Example 2, the elevator traction machine lubricating oil prepared in Example 3 The excellent friction reducing performance shows that the present invention uses a compound of inactive borate ester and molybdenum dialkyldithiocarbamate, which produces a good synergistic effect and can reduce the friction coefficient of lubricating oil.

The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications can also be made. should be regarded as the protection scope of the present invention.

Claims (10)

1. The elevator traction machine lubricating oil comprises a base material and an anti-foaming agent, wherein the mass of the anti-foaming agent is 0.001-0.02% of the mass of the base material;

the matrix material comprises the following components in percentage by mass:

87.7 to 96.1 percent of water-soluble polyalkylene glycol, 3.0 to 10.0 percent of oil-soluble polyether, 0.3 to 0.8 percent of antioxidant, 0.05 to 0.1 percent of metal passivating agent, 0.3 to 0.8 percent of extreme pressure antiwear agent, 0.2 to 0.5 percent of antifriction agent and 0.05 to 0.1 percent of antirust agent;

the extreme pressure antiwear agent is tri-dodecyl quaternary phosphonium salt docusate ionic liquid and dioctyl phosphate dodecyl amine salt;

the friction reducer is inactive borate and oil-soluble organic molybdenum salt.

2. The elevator traction machine lubricating oil according to claim 1, wherein the mass ratio of the tri-dodecyl quaternary phosphonium salt multi-base ester ionic liquid to dioctyl phosphate dodecyl amine salt is 1-3: 1.

3. the elevator traction machine lubricating oil of claim 1, wherein the inactive borate ester is a boroamide complex and the oil-soluble organic molybdenum salt is molybdenum dialkyldithiocarbamate.

4. The elevator traction machine lubricating oil according to claim 3, wherein the mass ratio of the inactive boric acid ester to the molybdenum dialkyldithiocarbamate is 1.0 to 1.5:1.0.

5. the elevator traction machine lubricating oil of claim 1, wherein the water-soluble polyalkylene glycol comprises synthetic oil SDM-03C and synthetic oil SDM-08D; the kinematic viscosity of the water-soluble polyalkylene glycol at 40 ℃ is 40-2200 mm ² /s。

6. The elevator traction machine lubricating oil according to claim 1, wherein the oil-soluble polyether has an kinematic viscosity at 40 ℃ of 15 to 250mm ² S; the preparation raw materials of the oil-soluble polyether comprise monomers and an initiator, wherein the monomers comprise epoxybutane and epoxypropane, and the initiator is an alcohol compound.

7. The elevator traction machine lubricating oil according to claim 1, wherein the antioxidant is alkylphenol and alkylaniline, and the mass ratio of the alkylphenol to the alkylaniline is 1-3: 1.

8. the elevator traction machine lubricating oil according to claim 1, wherein the metal deactivator is a benzotriazole derivative; the antirust agent is heptadecenyl imidazoline alkenyl succinate; the anti-foaming agent is a silicon type anti-foaming agent and a non-silicon type anti-foaming agent.

9. The method for producing the elevator traction machine lubricating oil according to any one of claims 1 to 8, comprising the steps of:

mixing water-soluble polyalkylene glycol, oil-soluble polyether, an antioxidant, a metal passivating agent, an extreme pressure antiwear agent, a friction reducer, an antirust agent and an antifoaming agent to obtain the elevator traction machine lubricating oil.

10. Use of the elevator traction machine lubricating oil according to any one of claims 1 to 8 or the elevator traction machine lubricating oil prepared by the preparation method according to claim 9 in lubrication of an elevator traction machine worm gear pair transmission system.