阅读说明：本技术 一种重负荷开式齿轮油及其制备方法 (Heavy-load open gear oil and preparation method thereof ) 是由 孔晓伟 卢智聪 马程明 杨铃波 缪志东 叶相涛 于 2020-11-27 设计创作，主要内容包括：本发明公开了一种重负荷开式齿轮油及其制备方法,所述重负荷开式齿轮油由如下组分按重量百分比制备而成：合成基础油50.0～70.0%、增粘剂20.0～40.0%、极压剂5.0～15.0%、抗磨剂3.0～8.0%、紧急修复润滑剂1.0～10%、抗氧剂1.0～5.0%和防锈剂0.1～8.0%；所述紧急修复润滑剂为石墨烯、二硫化钨、硫化锌、二硫化钼、硫化锑、石墨、聚四氟乙烯中的一种或者几种的混合物。本发明制备的重负荷开式齿轮油成本低,使用寿命长,制备方法便捷,易于生产。(The invention discloses a heavy-load open gear oil and a preparation method thereof, wherein the heavy-load open gear oil is prepared from the following components in percentage by weight: 50.0-70.0% of synthetic base oil, 20.0-40.0% of tackifier, 5.0-15.0% of extreme pressure agent, 3.0-8.0% of antiwear agent, 1.0-10% of emergency repair lubricant, 1.0-5.0% of antioxidant and 0.1-8.0% of antirust agent; the emergency repair lubricant is one or a mixture of more of graphene, tungsten disulfide, zinc sulfide, molybdenum disulfide, antimony sulfide, graphite and polytetrafluoroethylene. The heavy-load open gear oil prepared by the invention has the advantages of low cost, long service life, convenient preparation method and easy production.)

1. The heavy-load open gear oil is characterized by comprising the following components in percentage by weight:

50.0-70.0% of synthetic base oil

20.0 to 40.0 percent of tackifier

5.0-15.0% of extreme pressure agent

3.0 to 8.0 percent of antiwear agent

1.0-10% of emergency repair lubricant

1.0 to 5.0 percent of antioxidant

0.1-8.0% of an antirust agent;

the emergency repair lubricant is one or a mixture of more of graphene, tungsten disulfide, zinc sulfide, molybdenum disulfide, antimony sulfide, graphite and polytetrafluoroethylene.

2. The heavy-duty open gear oil according to claim 1, wherein the synthetic base oil is one or a mixture of silicone oil, synthetic hydrocarbon oil, alkylbenzene, oil-soluble polyether and synthetic ester oil.

3. The heavy duty open gear oil according to claim 1, wherein the tackifier is one or a mixture of polymethyl methacrylate, ethylene propylene copolymer, polybutylene, polyisobutylene and polystyrene-butadiene.

4. The heavy duty open gear oil according to claim 1, wherein the extreme pressure agent is one or a mixture of chlorinated paraffin, sulfurized olefin, sulfurized lard, phosphate and alkyl thiophosphate.

5. The heavy-duty open gear oil according to claim 1, wherein the antiwear agent is one or a mixture of organic borate ester, organic sulfur phosphorus compound and alkyl polycarboxylate derivative of mercaptothiadiazole.

6. The heavy duty open gear oil according to claim 1, wherein the antioxidant is one or a mixture of aniline, naphthylamine, phenol, thioether phenol antioxidants.

7. The heavy duty open gear oil according to claim 1, wherein said rust inhibitor is one or a mixture of several of thiazoles, alkyl sulfonates, organic carboxylates, and alkenyl acid rust inhibitors.

8. The preparation method of the heavy-load open gear oil is characterized by comprising the following operation steps:

1) adding part of the synthetic base oil into a reaction kettle, stirring for 30min, and heating to 110-130 ℃;

2) putting all the tackifiers into a container at one time, pouring the synthetic base oil heated to 110-130 ℃ in the reaction kettle into the container filled with the tackifiers, stirring for 20-30 min, and adding the mixture of the stirred synthetic base oil and the tackifiers into the reaction kettle;

3) pouring the mixture of the synthetic base oil and the tackifier in the reaction kettle into the container filled with the tackifier again, stirring for 10-20 min, pouring into the reaction kettle again, and repeating the steps for three times to ensure that the tackifier is completely poured into the reaction kettle;

4) stirring for 60-90 min at 110-130 ℃, adding the rest synthetic base oil into the reaction kettle, continuously stirring for 60-120 min, and cooling the mixed oil in the reaction kettle to 60-70 ℃;

5) adding an extreme pressure agent, an antiwear agent and an emergency repair lubricant in a formula amount into a reaction kettle at the temperature of 60-70 ℃, stirring for 40-60 min, adding an antioxidant and an antirust agent in a formula amount into the reaction kettle at one time, continuously stirring for 40-60 min, and then circularly stirring for 3-4 h;

6) degassing before discharging to obtain the heavy-load open gear oil.

9. The method for preparing heavy duty open gear oil according to claim 8, wherein in step 1), the synthetic base oil is 40-50% of the formula amount.

Technical Field

The invention relates to the technical field of lubricating oil additives, in particular to heavy-load open gear oil and a preparation method thereof.

The heavy-load open gear transmission is widely applied to industries such as cement, metallurgy, electric power, mining industry and the like, such as metal mining, cement and limestone production, and rotary kilns, ball mills, dryers and the like of sugar mills. Heavy-load open gear oil is used for lubricating running gears under an exposed condition and is mainly applied to super-large rotating equipment with low-speed heavy load; because the load of the tooth surface of the transmission gear per unit area is high, the tooth surface is in line contact, and noise and vibration are easy to generate, the oil product is required to have higher bearing capacity, and the friction coefficient of a friction pair is required to be reduced.

The traditional heavy-load open gear oil is mainly based on asphalt, but the gear oil has poor low-temperature fluidity and is easy to crack at low temperature and cannot form an oil film stably, so that the application range of the gear oil is limited; on the basis, another large group of heavy-duty open gear oil which is produced by adding a solvent to improve the low-temperature performance is easy to block a nozzle along with the volatilization of the solvent, so that the trouble of equipment maintenance is caused. In addition, in order to meet the requirements of modern open gear machinery and lubrication industry on environmental protection, the development of a novel heavy-load open gear oil which replaces the traditional heavy-load open gear oil and has good comprehensive performance is inevitable.

Disclosure of Invention

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

the heavy-load open gear oil comprises the following components in percentage by weight:

50.0-70.0% of synthetic base oil

20.0 to 40.0 percent of tackifier

5.0-15.0% of extreme pressure agent

3.0 to 8.0 percent of antiwear agent

1.0-10% of emergency repair lubricant

1.0 to 5.0 percent of antioxidant

0.1-8.0% of an antirust agent;

the emergency repair lubricant is one or a mixture of more of graphene, tungsten disulfide, zinc sulfide, molybdenum disulfide, antimony sulfide, graphite and polytetrafluoroethylene.

Further, the synthetic base oil is one or a mixture of more of silicone oil, synthetic hydrocarbon oil, alkylbenzene, oil-soluble polyether and synthetic ester oil.

Furthermore, the tackifier is one or a mixture of more of polymethyl methacrylate, ethylene propylene copolymer, polybutylene, polyisobutylene and polystyrene-butadiene.

Further, the extreme pressure agent is one or a mixture of several of chlorinated paraffin, sulfurized olefin, sulfurized lard, phosphate and alkyl thiophosphate.

Furthermore, the antiwear agent is one or a mixture of a plurality of organic boric acid ester, organic sulfur phosphorus compound and alkyl polycarboxylate derivative of mercapto thiadiazole.

Further, the antioxidant is one or a mixture of more of aniline antioxidants, naphthylamine antioxidants, phenols antioxidants and thioether phenol antioxidants.

Furthermore, the antirust agent is one or a mixture of more of thiazole, alkyl sulfonate, organic carboxylate and alkenyl acid antirust agents.

A preparation method of heavy-load open gear oil specifically comprises the following operation steps:

1) adding part of the synthetic base oil into a reaction kettle, stirring for 30min, and heating to 110-130 ℃;

2) putting all the tackifiers into a container at one time, pouring the synthetic base oil heated to 110-130 ℃ in the reaction kettle into the container filled with the tackifiers, stirring for 20-30 min, and adding the mixture of the stirred synthetic base oil and the tackifiers into the reaction kettle;

3) pouring the mixture of the synthetic base oil and the tackifier in the reaction kettle into the container filled with the tackifier again, stirring for 10-20 min, pouring into the reaction kettle again, and repeating the steps for three times to ensure that the tackifier is completely poured into the reaction kettle;

4) stirring for 60-90 min at 110-130 ℃, adding the rest synthetic base oil into the reaction kettle, continuously stirring for 60-120 min, and cooling the mixed oil in the reaction kettle to 60-70 ℃;

5) adding an extreme pressure agent, an antiwear agent and an emergency repair lubricant in a formula amount into a reaction kettle at the temperature of 60-70 ℃, stirring for 40-60 min, adding an antioxidant and an antirust agent in a formula amount into the reaction kettle at one time, continuously stirring for 40-60 min, and then circularly stirring for 3-4 h;

6) degassing before discharging to obtain the heavy-load open gear oil.

Further, in the step 1), the synthetic base oil accounts for 40-50% of the formula amount.

The invention has the beneficial effects that:

1. the heavy-load open gear oil prepared by the invention has the advantages of low cost, long service life, convenient preparation method and easy production;

2. the heavy-load open gear oil prepared by the invention has good low-temperature fluidity and high-temperature oxidation resistance, can meet the requirements of pumping or spraying at low temperature, and can adapt to large-scale temperature change;

3. the heavy-load open gear oil prepared by the invention does not contain asphalt base, thereby avoiding the environmental pollution and the trouble of equipment maintenance;

4. the tackifier in the heavy-load open gear oil has strong cohesive force and viscosity, better provides the adhesion capability of the heavy-load open gear oil, and prevents the heavy-load open gear oil from being thrown out in the gear work;

5. the heavy-load open gear oil prepared by the invention has good lubricity, and the strong oil film thickness is ensured through the matching action of the tackifier with strong shearing resistance;

6. the emergency repair lubricant with elasticity and a ball cage structure in the heavy-load open gear oil disclosed by the invention is added, so that the friction coefficient is effectively reduced, the oil film strength under a high-temperature condition is improved, and the heavy-load open gear oil has good tribological performance.

Detailed Description

Example 1

The heavy-load open gear oil is prepared from the following raw materials in parts by weight:

synthetic base oil (trimethylolpropane oleate: 7.5%; trimellitate: 7.5%; PAO 100: 46.0%);

tackifier (PB 2400: 15.0%; PB 1300: 6.0%);

antirust agent (thiazole derivative antirust agent: 0.1%, alkylbenzene sulfonate: 2.9%); antioxidant (octylaniline antioxidant: 2.0%);

extreme pressure agent (sulfurized olefin: 6.0%);

antiwear agent (antimony dialkyldithiocarbamate antiwear agent: 4.0%);

emergency repair lubricant (graphene 1.5%, tungsten disulfide 1.5%).

The preparation method comprises the following steps:

(1) adding part of synthetic base oil, namely trimethylolpropane oleate, trimellitate and 20% of PAO100 into a reaction kettle, stirring for about 30min, and heating to 110-130 ℃;

(2) pouring all PB2400 and PB1300 into a container at one time, pouring the synthetic base oil heated to 110-130 ℃ in the reaction kettle into the container filled with the mixture of PB2400 and PB1300, stirring for about 20-30 min, and adding the stirred mixed oil into the reaction kettle;

(3) pouring the mixed hot oil in the reaction kettle into a container with the tackifier, stirring for 10min, pouring into the reaction kettle again, repeating the steps for three times to ensure that the PB2400 and the PB1300 are all added into the reaction kettle;

(4) stirring for 60min at 110-130 ℃, pouring the remaining PAO100 into the reaction kettle, continuously stirring, and cooling the mixture oil in the reaction kettle to 60 ℃⁷0^oC；

(5) Keeping the temperature at 60-70 ℃, adding sulfurized olefin, antimony dialkyl dithiocarbamate, graphene and tungsten disulfide into a reaction kettle, stirring for 40min, then adding thiazole derivatives, alkylbenzene sulfonate and octylaniline into the reaction kettle, continuously stirring for 40min, and circularly stirring for 3-4 hours;

(6) degassing before discharging to obtain the finished product of the heavy-load open gear oil.

The finished product was subjected to a performance test, and the test results are shown in table 1.

TABLE 1

。

Example 2

The heavy-load open gear oil is prepared from the following raw materials in parts by weight:

synthetic base oil (pentaerythritol ester: 8.0%, polyester: 20.0%, PAO 40: 30.0%);

tackifier (PB 2400: 5.0%; PB 1300: 5.0%; polymethyl methacrylate: 12.0%);

antirust agent (thiazole derivative antirust agent: 0.1%, calcium oil sulfonate: 4.0%, alkenyl succinic acid antirust agent: 3.0%);

antioxidant (naphthylamine antioxidant 1.6%, phenol antioxidant 2.0%);

extreme pressure agent (sulfurized olefin: 3.0%);

antiwear agent (alkyl thiophosphate antiwear agent: 2.3%);

emergency repair lubricant (zinc sulfide 1.0%, tungsten disulfide 3.0%).

The preparation method of this example is identical to example 1.

The finished product was subjected to a performance test, and the test results are shown in table 2.

TABLE 2

。

The foregoing shows and describes the general principles and features of the present invention. Modifications to the examples described herein will be readily apparent to those skilled in the art. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but rather, various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.