CN109652184B - All-season long-acting composite solid lubricant for emulsion pump crankcase - Google Patents

All-season long-acting composite solid lubricant for emulsion pump crankcase Download PDF

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CN109652184B
CN109652184B CN201910129270.5A CN201910129270A CN109652184B CN 109652184 B CN109652184 B CN 109652184B CN 201910129270 A CN201910129270 A CN 201910129270A CN 109652184 B CN109652184 B CN 109652184B
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nano
compound
superfine
base oil
micro
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CN109652184A (en
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乔少波
张军
高健
冯宏伟
张挺
马叶红
张伟
马云
车利霞
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XI'AN AONAITE SOLID LUBRICATION ENGINEERING RESEARCH CO LTD
Shennan Mining Coal Technology Incubation Co ltd
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XI'AN AONAITE SOLID LUBRICATION ENGINEERING RESEARCH CO LTD
Shennan Mining Coal Technology Incubation Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/08—Solids

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention discloses a full-season long-acting composite solid lubricant for an emulsion pump crankcase, which is prepared from base oil, a dispersant and micro-nano and superfine solid-phase compounds, wherein the base oil comprises naphthenic base and polyisobutylene, the dispersant comprises polyvinylpyrrolidone and hexenyl bis-stearamide, and the components in percentage by mass are as follows: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5.

Description

All-season long-acting composite solid lubricant for emulsion pump crankcase
Technical Field
The invention belongs to the technical field of special lubricating grease, and particularly relates to a full-season long-acting composite solid lubricant for an emulsion pump crankcase.
Background
The crankcase of the emulsion pump is one of the core components of the coal mine hydraulic equipment, and because the hydraulic support unit is arranged underground and limited by the cooperative work requirement of the underground environment of the underground coal mine and the hydraulic support system, the hydraulic support unit is influenced by the humid, corrosive atmosphere, dust and impact vibration all the year round, so that the plunger and the plunger packing of the emulsion pump are sealed,
The abnormal abrasion of the crankshaft, the crankshaft seal, the bearing bush, the connecting rod pin and the like is aggravated, and meanwhile, the lubricating oil leakage is generated to cause destructive mechanical accidents and underground water resource pollution, so that the contradiction between coal mine production and the environment is aggravated. Therefore, the phenomena of crankshaft excessive wear, plunger and crankshaft surface pitting and abnormal wear, plunger cylinder leakage, crankcase water inlet, bearing bush wear, lubricating oil leakage and the like often occur in the crankcase of the hydraulic support emulsion pump, so that the emulsion pump frequently lifts the well. According to statistics, the failure proportion of a crankcase and a plunger mechanism of an emulsion pump is over 72 percent due to insufficient mechanical lubricating oil performance caused by underground high humidity, corrosive atmosphere and flying dust, the conventional lubricating oil cannot play a lubricating effect for a long time in the severe environment, the lubricating effect is poor and cannot meet the requirement, meanwhile, the lubricating oil leaks to cause destructive mechanical accidents and underground water resource pollution, and no lubricant special for the crankcase of the emulsion pump is disclosed in any document and patent at present, so that the research and development of the special all-season long-acting composite solid lubricant for the crankcase of the emulsion pump has market prospect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a full-season long-acting composite solid lubricant for an emulsion pump crankcase, which overcomes the problems that the prior art does not have a lubricant specially applied to the emulsion pump crankcase, the prior lubricating oil cannot play a lubricating effect for a long time under the severe environment, the lubricating effect is poor and cannot meet the requirement, and meanwhile, the prior lubricating oil is easy to leak to cause destructive mechanical accidents, underground water resource pollution and the like.
In order to solve the technical problem, the technical scheme of the invention is as follows: the all-season long-acting composite solid lubricant for the emulsion pump crankcase is prepared from base oil, a dispersing agent and micro-nano and superfine solid phase compounds, wherein the base oil comprises cycloalkyl and polyisobutylene, the dispersing agent comprises polyvinylpyrrolidone and hexenyl bis-stearamide, and the dispersing agent comprises the following components in percentage by mass: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5.
preferably, the components are as follows by mass percent: 2.85-5.69% of polyvinylpyrrolidone, 2.10-4.02% of hexenyl bis-stearamide, 0.78-11.02% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 3.
preferably, the micro-nano and superfine solid phase compound is prepared from macromolecular fluoride, superfine crystalline flake graphite, a colloidal compound of tungsten disulfide, lead oxide and nano tin powder, and the components are calculated according to the mass percentage: 5-15% of macromolecular fluoride, 5-15% of superfine crystalline flake graphite, 40-58% of colloid compound of tungsten disulfide, 4-10% of lead oxide and 26-35% of nano tin powder.
Preferably, the components are as follows by mass percent: 7.150-12.369% of polymer fluoride, 7.321-14.143% of ultrafine flake graphite, 43-55% of tungsten disulfide colloid compound, 5-8% of lead oxide and 30-33% of nano tin powder.
Preferably, the polymer fluoride is polymer eutectic polytetrafluoroethylene, wherein the particle size of the polymer eutectic polytetrafluoroethylene is 20-50 nm.
Preferably, the granularity of the superfine crystalline flake graphite is 1.2-7.9 microns, the granularity of the lead oxide is 1.7-9.0 microns, and the granularity of the nano tin powder is 20-50 nm.
Preferably, the colloid compound of tungsten disulfide is an aluminum hydroxide colloid compound of tungsten disulfide, wherein the particle size of the aluminum hydroxide colloid compound of tungsten disulfide is 0.91-3.5 μm.
Compared with the prior art, the invention has the advantages that:
(1) the micro-nano and superfine solid phase compound of the composite solid lubricant is compounded on a micron scale and a superfine scale to form a synergistic effect, the micro-nano and superfine solid phase compound is uniformly dispersed in a base oil tissue of the composite solid lubricant through a dispersing agent, so that the composite solid lubricant has excellent wear resistance, shock absorption, leakage prevention, water resistance, dust prevention and extreme pressure performance, and the lubricating performance, the bearing capacity and the automatic leakage prevention capacity are remarkably improved through the quantum size effect and the surface effect of the micro-nano and superfine solid phase compound on a solid-liquid interface, so that the all-season long-acting lubrication and the automatic leakage prevention of the composite solid lubricant in the field of an emulsion pump crankcase of a coal mine support system are realized;
(2) the composite solid lubricant improves the reliability of the lubricating effect of the emulsion pump crankcase in harsh working conditions, realizes the all-season long-acting lubrication of the emulsion pump crankcase of a coal mine support system, simultaneously realizes the purpose of automatic leakage prevention of the emulsion pump crankcase, reduces the maintenance workload of the emulsion pump crankcase and the pollution of lubricating oil to the environment, and prolongs the service life of the composite solid lubricant.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1
The invention discloses a full-season long-acting composite solid lubricant for an emulsion pump crankcase, which is prepared from base oil, a dispersant and micro-nano and superfine solid-phase compounds, wherein the base oil comprises naphthenic base and polyisobutylene, the dispersant comprises polyvinylpyrrolidone and hexenyl bis-stearamide, and the components in percentage by mass are as follows: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5.
example 2
The invention discloses a full-season long-acting composite solid lubricant for an emulsion pump crankcase, which is prepared from base oil, a dispersant and micro-nano and superfine solid-phase compounds, wherein the base oil comprises naphthenic base and polyisobutylene, the dispersant comprises polyvinylpyrrolidone and hexenyl bis-stearamide, and the components in percentage by mass are as follows: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5.
preferably, the components are as follows by mass percent: 2.85-5.69% of polyvinylpyrrolidone, 2.10-4.02% of hexenyl bis-stearamide, 0.78-11.02% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 3.
example 3
The invention discloses a full-season long-acting composite solid lubricant for an emulsion pump crankcase, which is prepared from base oil, a dispersant and micro-nano and superfine solid-phase compounds, wherein the base oil comprises naphthenic base and polyisobutylene, the dispersant comprises polyvinylpyrrolidone and hexenyl bis-stearamide, and the components in percentage by mass are as follows: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5.
preferably, the components are as follows by mass percent: 2.85-5.69% of polyvinylpyrrolidone, 2.10-4.02% of hexenyl bis-stearamide, 0.78-11.02% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 3.
preferably, the micro-nano and superfine solid phase compound is prepared from macromolecular fluoride, superfine crystalline flake graphite, a colloidal compound of tungsten disulfide, lead oxide and nano tin powder, and the components are calculated according to the mass percentage: 5-15% of macromolecular fluoride, 5-15% of superfine crystalline flake graphite, 40-58% of colloid compound of tungsten disulfide, 4-10% of lead oxide and 26-35% of nano tin powder.
Preferably, the components are as follows by mass percent: 7.150-12.369% of polymer fluoride, 7.321-14.143% of ultrafine flake graphite, 43-55% of tungsten disulfide colloid compound, 5-8% of lead oxide and 30-33% of nano tin powder.
Example 4
The invention discloses a full-season long-acting composite solid lubricant for an emulsion pump crankcase, which is prepared from base oil, a dispersant and micro-nano and superfine solid-phase compounds, wherein the base oil comprises naphthenic base and polyisobutylene, the dispersant comprises polyvinylpyrrolidone and hexenyl bis-stearamide, and the components in percentage by mass are as follows: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5.
preferably, the components are as follows by mass percent: 2.85-5.69% of polyvinylpyrrolidone, 2.10-4.02% of hexenyl bis-stearamide, 0.78-11.02% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 3.
preferably, the micro-nano and superfine solid phase compound is prepared from macromolecular fluoride, superfine crystalline flake graphite, a colloidal compound of tungsten disulfide, lead oxide and nano tin powder, and the components are calculated according to the mass percentage: 5-15% of macromolecular fluoride, 5-15% of superfine crystalline flake graphite, 40-58% of colloid compound of tungsten disulfide, 4-10% of lead oxide and 26-35% of nano tin powder.
Preferably, the components are as follows by mass percent: 7.150-12.369% of polymer fluoride, 7.321-14.143% of ultrafine flake graphite, 43-55% of tungsten disulfide colloid compound, 5-8% of lead oxide and 30-33% of nano tin powder.
Preferably, the polymer fluoride is polymer eutectic polytetrafluoroethylene, wherein the particle size of the polymer eutectic polytetrafluoroethylene is 20-50 nm.
Preferably, the granularity of the superfine crystalline flake graphite is 1.2-7.9 microns, the granularity of the lead oxide is 1.7-9.0 microns, and the granularity of the nano tin powder is 20-50 nm.
Example 5
The invention discloses a full-season long-acting composite solid lubricant for an emulsion pump crankcase, which is prepared from base oil, a dispersant and micro-nano and superfine solid-phase compounds, wherein the base oil comprises naphthenic base and polyisobutylene, the dispersant comprises polyvinylpyrrolidone and hexenyl bis-stearamide, and the components in percentage by mass are as follows: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5.
preferably, the components are as follows by mass percent: 2.85-5.69% of polyvinylpyrrolidone, 2.10-4.02% of hexenyl bis-stearamide, 0.78-11.02% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 3.
preferably, the micro-nano and superfine solid phase compound is prepared from macromolecular fluoride, superfine crystalline flake graphite, a colloidal compound of tungsten disulfide, lead oxide and nano tin powder, and the components are calculated according to the mass percentage: 5-15% of macromolecular fluoride, 5-15% of superfine crystalline flake graphite, 40-58% of colloid compound of tungsten disulfide, 4-10% of lead oxide and 26-35% of nano tin powder.
Preferably, the components are as follows by mass percent: 7.150-12.369% of polymer fluoride, 7.321-14.143% of ultrafine flake graphite, 43-55% of tungsten disulfide colloid compound, 5-8% of lead oxide and 30-33% of nano tin powder.
Preferably, the polymer fluoride is polymer eutectic polytetrafluoroethylene, wherein the particle size of the polymer eutectic polytetrafluoroethylene is 20-50 nm.
Preferably, the granularity of the superfine crystalline flake graphite is 1.2-7.9 microns, the granularity of the lead oxide is 1.7-9.0 microns, and the granularity of the nano tin powder is 20-50 nm.
Preferably, the colloid compound of tungsten disulfide is an aluminum hydroxide colloid compound of tungsten disulfide, wherein the weight ratio of the mixture of tungsten disulfide and aluminum hydroxide colloid compound is 1: 1-1: 10, and the particle size of the aluminum hydroxide colloid compound of tungsten disulfide is 0.91-3.5 μm.
The components in the following examples are all commercial products, wherein the high-molecular eutectic Polytetrafluoroethylene (PTFE) is 38% of CaF2-62％BaF2An aluminum hydroxide colloid compound of tungsten disulfide (i.e., adding tungsten disulfide to Al (OH)) having a particle size of 20-50 nm and a particle size of ultrafine flake graphite of 1.2-7.9 μm3In the colloid) has the granularity of 0.91-3.5 mu m, the granularity of red lead oxide is 1.7-9.0 mu m, the granularity of nano tin powder is 20-50 nm, wherein the mass content of 1% is 100 g.
Example 6
The weight percentage content is as follows: the lubricant comprises 8% of polyvinylpyrrolidone, 1% of hexenyl bis-stearamide, 12% of micro-nano and superfine solid phase compound and the balance of basic oil naphthenic base and polyisobutylene, wherein the mass ratio of naphthenic base to polyisobutylene is 1:1, namely the naphthenic base and the naphthenic base are both 39.5%, 15% of high-molecular eutectic polytetrafluoroethylene of the micro-nano and superfine solid phase compound, 5% of superfine crystalline flake graphite, 58% of aluminum hydroxide colloid compound of tungsten disulfide, 10% of red lead oxide and 12% of nano tin powder, and the micro-nano and superfine solid phase compound is dispersed into the naphthenic base and the polyisobutylene by utilizing the polyvinylpyrrolidone and the hexenyl bis-stearamide to form the solid lubricant.
Example 7
The weight percentage content is as follows: the lubricant comprises 2% of polyvinylpyrrolidone, 5% of hexenyl distearamide, 0.5% of micro-nano and superfine solid phase compound and the balance of base oil naphthenic base and polyisobutylene, wherein the mass ratio of naphthenic base to polyisobutylene is 1:5, namely 15.4% of naphthenic base, and 77.1% of naphthenic base, wherein 5% of high-molecular eutectic polytetrafluoroethylene of the micro-nano and superfine solid phase compound, 15% of superfine crystalline flake graphite, 40% of aluminum hydroxide colloid compound of tungsten disulfide, 8% of red lead oxide and 32% of nano tin powder, and the micro-nano and superfine solid phase compound is dispersed into the naphthenic base and the polyisobutylene by utilizing the polyvinylpyrrolidone and the hexenyl distearamide to form a solid lubricant.
Example 8
The weight percentage content is as follows: the lubricant comprises 2.85% of polyvinylpyrrolidone, 4.02% of hexenyl bis stearamide, 11.02% of micro-nano and superfine solid phase compound and the balance of base oil naphthenic base and polyisobutylene, wherein the mass ratio of the naphthenic base to the polyisobutylene is 1:4, namely the naphthenic base is 16.51%, the naphthenic base is 65.60%, the high-molecular eutectic polytetrafluoroethylene of the micro-nano and superfine solid phase compound accounts for 7.15%, the superfine crystalline flake graphite accounts for 14.143%, the aluminum hydroxide colloid compound of tungsten disulfide accounts for 55%, the red lead oxide accounts for 4%, and the nano tin powder 19.707%, and the micro-nano and superfine solid phase compound is dispersed into the naphthenic base and the polyisobutylene by utilizing the polyvinylpyrrolidone and the hexenyl bis stearamide to form the solid lubricant.
Example 9
The weight percentage content is as follows: the lubricant comprises, by mass, 5.69% of polyvinylpyrrolidone, 2.1% of hexenyl bis stearamide, 0.5% of micro-nano and superfine solid phase compound and the balance of base oil naphthenic base and polyisobutylene, wherein the mass ratio of the naphthenic base to the polyisobutylene is 1:2, namely the naphthenic base is 30.57%, the naphthenic base is 61.14%, the macromolecular eutectic polytetrafluoroethylene of the micro-nano and superfine solid phase compound accounts for 12.369%, the superfine crystalline flake graphite accounts for 7.321%, the aluminum hydroxide colloid compound of tungsten disulfide accounts for 42%, the red lead oxide accounts for 5%, and the nano tin powder accounts for 33.31%.
Example 10
The weight percentage content is as follows: the lubricant comprises, by mass, 3% of polyvinylpyrrolidone, 2.5% of hexenyl bis stearamide, 6% of micro-nano and superfine solid phase compound and the balance of base oil naphthenic base and polyisobutylene, wherein the mass ratio of naphthenic base to polyisobutylene is 1:3, namely 30.57% of naphthenic base, and 61.14% of naphthenic base, wherein 8% of high-molecular eutectic polytetrafluoroethylene, 10% of superfine crystalline flake graphite, 50% of aluminum hydroxide colloid compound of tungsten disulfide, 6% of red lead oxide and 26% of nano tin powder of the micro-nano and superfine solid phase compound are dispersed into the naphthenic base and the polyisobutylene by utilizing the polyvinylpyrrolidone and the hexenyl bis stearamide to form a solid lubricant.
Example 11
A comparative test is set, and a general-purpose injection lubricating oil purchased in the market is selected and is named as Pusu 2009.
Example 12
And establishing a comparison test, and selecting shthde lubricating oil purchased in the market.
The characteristics of the universal machinery all-season long-acting self-sealing composite solid lubricant
The lubricant of embodiment 6-12 is selected for lubricating performance detection, and MRS-1J mechanical four-ball long-time abrasion resistance tester is used for detecting abrasion resistance and load; 392N, the rotating speed is 1200r/min, the time is 60min, the testing temperature is as follows: room temperature;
detecting extreme pressure performance by using an MRS-10A four-ball friction tester, testing the PB value (maximum non-seizure load) and the PD value (sintering load) of the lubricant, the rotating speed of a main shaft is 1450 +/-50 rpm, and the testing time is as follows: 10 s; and (3) testing temperature: room temperature;
the detection results are shown in table 1:
Figure BDA0001974709340000091
Figure BDA0001974709340000101
the solid lubricant has the usage amount of 1/20 of the traditional lubricating oil, has automatic leakage stopping capability and can prevent the lubricating oil from being polluted; and the solid lubricant forms a composite solid lubricating film in the friction process, the PB value and the PD value of the composite solid lubricating film are both greater than 1400N and 7800N, the abrasion is greatly reduced and is obviously superior to the traditional lubricating oil, the lubricating effectiveness is 20 times of that of the traditional lubricating oil, the maintenance period of the emulsion pump crankcase is prolonged by 5 times of that of the traditional lubricating oil, the pollution and the cost caused by maintenance are reduced by 80%, the production efficiency is improved by 5%, the abrasion is reduced by 10 times, and the equipment management and use cost is saved by 30%.
The solid lubricant disclosed by the invention is a gray black fine paste, the cone penetration is 255mm, the dropping point is 198 ℃, the pH value is less than or equal to 0.1, the steel mesh oil separation is 1.2%, the corrosion condition is qualified, and the storage performance is 5 years.
The solid lubricant disclosed by the invention has the advantages that the comprehensive cost is reduced, the service life is prolonged, the comprehensive efficiency is improved, the comprehensive benefit is increased, the extreme conditions such as heavy load, high temperature, dust, water drenching, acid and alkali, irradiation and the like are all adaptive, the using amount of the lubricant is less, the effective lubrication period is longer, the maintenance and management are more convenient, the lubrication and maintenance cost is reduced by 10%, the abrasion loss is reduced by 80%, and the sealing effective period is prolonged by 60%.
The solid lubricant disclosed by the invention has the functions of wear resistance, shock absorption, leakage prevention, long acting, dust resistance, water resistance and acid and alkali resistance which are 6-10 times stronger than those of the traditional lubricating oil, and the principle is as follows:
wear resistance: the solid lubricant is formed by compounding a lubricating material with a liquid phase structure and a lubricating material with a solid phase structure, the surface polarity of small molecular group lubricating oil adsorbs the solid lubricating material to gather, the synergistic optimization effect of the composite solid lubricating material is combined, a firm and firm composite solid lubricating film is formed at the moment of extrusion and sliding of a friction pair, the original oil film plays the role of the original oil film when the composite solid lubricating film is subjected to friction and meshing motion, meanwhile, a multilayer composite film is clamped between two oil films, the composite solid lubricating film with the PD value larger than 7840N is formed at the moment of meshing of the friction pair, and after the oil film is broken, the composite film effectively compensates and completely cuts off the direct contact of an A-B friction pair, realizes the flexible transmission of gear transmission force, thereby overcoming the damage of the oil film when the friction instant meshing process impacts under the oil lubrication condition, and the metal surface of the friction pair is directly abraded by friction. Therefore, under the lubrication condition of the solid lubricant, the composite solid lubrication film is not damaged, the direct contact abrasion of metal between the friction pairs is blocked, and the precision period between the friction pairs is multiplied.
Damping: the damping principle of the solid lubricant is as follows: the composite solid lubricating film formed instantly by friction extrusion of the gear and the bearing is permanently remained on a friction surface with a higher moving speed, and meanwhile, the sintering load larger than 7840N endows the composite solid lubricating film with super-strong impact load capacity, and the flexible interlayer structure can relieve strong vibration impact force. Thereby realize that the vibrations of mechanical transmission spare operation process are alleviated.
Leakage prevention: the solid lubricant is characterized in that a solid-liquid phase synthesis tissue is adopted, when the liquid phase tissue and the solid phase tissue simultaneously enter a cavity of a mechanical part, the solid phase tissue is deposited towards the direction of a mechanical movement fit clearance under the vibration condition in the mechanical movement process, and the composite solid lubricant with particles of different diameters forms a dynamic sealing layer under the deposition effect, so that the lubricating liquid in the box body is prevented from leaking outwards from the movement fit clearance.
Long-acting: the components of liquid phase tissue naphthenic base, polyisobutylene and the like in the solid lubricant are all non-volatile and non-oxidative lubricating materials with extremely stable stability at the temperature of 400 ℃, all components of solid phase tissue macromolecular fluoride, ultrafine crystalline flake graphite, a colloidal compound of tungsten disulfide, lead oxide and nano tin powder in the solid lubricant are all non-oxidative solid lubricating materials with excellent stability at the temperature of 400 ℃, and the composite solid lubricant which mechanically operates at the temperature of 400 ℃ cannot lose efficacy according to the characteristics of the solid-liquid phase material of the product. Therefore, the composite solid lubricant cannot lose effectiveness under the condition that the operating temperature of all the transmission friction parts of the general machinery cannot exceed 80 ℃. Therefore, the solid lubricant is effective for a long period of time by being added at one time.
Dust resistance: the solid lubricant has super strong pollution and adhesion functions, and when encountering dust, the solid lubricant is quickly adhered and wraps dust particles, so that a super strong adsorption lubricating film is formed on the surface of the dust, and the abrasive wear function of the dust between friction pairs is forced to disappear.
Water resistance: polyisobutylene in the solid lubricant cannot be emulsified in water and the lubricating function cannot be lost, and the friction coefficient of solid lubricating materials such as graphite, tungsten disulfide, lead oxide, nano tin powder and the like in the solid lubricant tends to be reduced after the solid lubricating materials meet water.
Acid and alkali resistance: the solid lubricant is made of materials with stable properties within 400 ℃, and the tissue structure of the solid lubricant is not the valence sensitive to acid and alkali.
The micro-nano and superfine solid phase compound of the composite solid lubricant is compounded on a micron scale and a superfine scale to form a synergistic effect, the micro-nano and superfine solid phase compound is uniformly dispersed in a base oil tissue of the composite solid lubricant through a dispersing agent, so that the composite solid lubricant has excellent wear resistance, shock absorption, leakage prevention, water resistance, dust prevention and extreme pressure performance, and the lubricating performance, the bearing capacity and the automatic leakage prevention capacity are remarkably improved through the quantum size effect and the surface effect of the micro-nano and superfine solid phase compound on a solid-liquid interface, so that the all-season long-acting lubrication and the automatic leakage prevention of the composite solid lubricant in the field of an emulsion pump crankcase of a coal mine support system are realized.
The composite solid lubricant improves the reliability of the lubricating effect of the emulsion pump crankcase in harsh working conditions, realizes the all-season long-acting lubrication of the emulsion pump crankcase of a coal mine support system, simultaneously realizes the purpose of automatic leakage prevention of the emulsion pump crankcase, reduces the maintenance workload of the emulsion pump crankcase and the pollution of lubricating oil to the environment, and prolongs the service life of the composite solid lubricant.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.

Claims (4)

1. The long-acting compound solid lubricant for the emulsion pump crankcase is characterized in that: the oil-based composite material is prepared from base oil, a dispersing agent and micro-nano and superfine solid phase compounds, wherein the base oil comprises cycloalkyl and polyisobutylene, the dispersing agent comprises polyvinylpyrrolidone and hexenyl bis stearamide, and the components in percentage by mass are as follows: 2-8% of polyvinylpyrrolidone, 1-5% of hexenyl bis stearamide, 0.5-12% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 1-1: 5; the micro-nano and superfine solid phase compound is prepared from macromolecular fluoride, superfine crystalline flake graphite, a colloidal compound of tungsten disulfide, lead oxide and nano tin powder, and the components are calculated according to the mass percentage: 5-15% of macromolecular fluoride, 5-15% of superfine crystalline flake graphite, 40-58% of colloid compound of tungsten disulfide, 4-10% of lead oxide and 26-35% of nano tin powder; the granularity of the superfine crystalline flake graphite is 1.2-7.9 mu m, the granularity of the lead oxide is 1.7-9.0 mu m, and the granularity of the nano tin powder is 20-50 nm; the colloid compound of the tungsten disulfide is an aluminum hydroxide colloid compound of the tungsten disulfide, wherein the granularity of the aluminum hydroxide colloid compound of the tungsten disulfide is 0.91-3.5 mu m.
2. The long-term long-acting compound solid lubricant for the emulsion pump crankcase according to claim 1, wherein: the components are as follows by mass percent: 2.85-5.69% of polyvinylpyrrolidone, 2.10-4.02% of hexenyl bis-stearamide, 0.78-11.02% of micro-nano and superfine solid phase compound and base oil for balancing the balance, wherein the mass ratio of cycloalkyl to polyisobutylene in the base oil for balancing the balance is 1: 3.
3. the long-term long-acting compound solid lubricant for the emulsion pump crankcase according to claim 1, wherein:the micro-nano and superfine solid phase compoundThe components are as follows by mass percent: 7.150-12.369% of high-molecular fluoride and 7.321-E ultrafine flake graphite14.143%, 43-55% of a tungsten disulfide colloid compound, 5-8% of lead oxide and 30-33% of nano tin powder.
4. The long-term long-acting compound solid lubricant for the emulsion pump crankcase according to claim 1, wherein: the polymer fluoride is polymer eutectic polytetrafluoroethylene, wherein the granularity of the polymer eutectic polytetrafluoroethylene is 20-50 nm.
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