CN103254980A - Lubricating grease for crane jib - Google Patents
Lubricating grease for crane jib Download PDFInfo
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- CN103254980A CN103254980A CN2013101861198A CN201310186119A CN103254980A CN 103254980 A CN103254980 A CN 103254980A CN 2013101861198 A CN2013101861198 A CN 2013101861198A CN 201310186119 A CN201310186119 A CN 201310186119A CN 103254980 A CN103254980 A CN 103254980A
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- lubricating grease
- crane arm
- agent
- compound
- arm lubricating
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Abstract
The invention discloses lubricating grease for a crane jib. The lubricating grease consists of the following ingredients in percentage by mass: 75%-80% of base oil, 20%-12% of a thickening agent and 5%-8% of other additives. The lubricating grease is prepared by adopting a composite of the mixed polyether and poly alpha-olefin (PAO) as the base oil and composite polyurea as the thickening agent. The lubricating grease for the crane jib has good combination properties, and all the performance indexes of the lubricating grease satisfy use requirements; and the lubricating grease has good adhering temperature performance, thermal oxidation stability, anti-corrosion performance, adhesivity, water resistance, corrosion resistance, abrasive resistance, mechanical safety and obvious biodegradability. Imidazoline derivatives have adsorption molecules with a plurality of adsorption sites, can form a layer of stable adsorption film on metal surfaces, have a corrosion inhibition function and can be also used for improving the water resistance of the lubricating grease. The crane jib can be used in severe working conditions through utilizing the lubricating grease.
Description
Technical field
The present invention relates to a kind of crane arm lubricating grease.
Background technology
Along with production-scale expansion, the raising of level of automation, more and more big as the effect of visual plant lifting machine in the modern production process of material handling, use more and more wider, also more and more higher to the requirement of lifting machine.The develop rapidly of science and technology has promoted the raising of modern designs and manufacturing capacity, and fierce competition in the international market also more and more depends on the competition of technology.Benefit from the actively pulling of factor such as the growing continuously and fast of outlet, the sustainable development of metallurgy industry, the continuous expansion of real-estate market, impel the technical feature of lifting machine to enter brand-new developmental stage, lifting machine just develops towards large-tonnage direction more, has also proposed higher performance requriements for the lubricating grease of coordinative composition of equipments.
At present, lifting machine is in design with when making, and considered will reduce height of contour, simplified construction as far as possible, reduce wheel load, and structure aspects adopts thin-wall section and deformed steel, reduces the splicing welding joint of structure, improves anti-fatigue performance; Adopt various high-strength low-alloy steel novel materials, improve supporting capacity, improve stress condition, alleviate deadweight and increase good looking appearance.But as the arm of lifting machine key part, the quality of its serviceability directly influences the lifting performance of lifting machine.Crane arm mechanism complexity, working conditions is changeable, local pressure is obvious etc.Arm because telescopic section and slide block distortion worsen its contact condition, has aggravated the intensity of stress, thereby has caused the inefficacy of arm in the course of the work.In addition, crane arm is easy to take place friction self-excited vibration, and present employed molybdenumdisulphide lithium soap grease and extreme pressure lithium base lubricating grease are difficult to satisfy the needs of its operating mode characteristics.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of crane arm lubricating grease that good sticking warm nature, thermal oxidation stability, rust-preventing characteristic, adhesivity, water resisting property, erosion resistance, resistance to abrasion, mechanical stability and outstanding biological degradability are arranged, and uses under the working condition of harshness to satisfy crane arm.
The present invention solves the problems of the technologies described above with following technical scheme:
Crane arm lubricating grease of the present invention adopts polyethers and poly-alpha olefins (PAO) compound as base oil, and viscosifying agent is the composite polyurea viscosifying agent, cooperates multiple composite additive, and the mass percent of each component is:
| Component | Content (mass percent) |
| Base oil | 75%～80% |
| Viscosifying agent | 20%～12% |
| Extreme pressure anti-wear additives | 2%～4% |
| Oxidation inhibitor | 0.5%～3% |
| Rust-preventive agent | 0.02%～0.05% |
| Water repellent agent | 0.3%～0.6% |
| Weighting agent | 0.8%～1% |
Base oil is that the polyethers of mass ratio 50%～60% and 50%～40% poly-alpha olefins (PAO) are compound.
Viscosifying agent is the composite polyurea viscosifying agent.
Extreme pressure anti-wear additives is that boric acid ester amine salt and 40%～30% the benzyl disulfide thing of mass ratio 60%～70% is compound.
Oxidation inhibitor is that organic copper salt and 40%～50% the oil soluble dialkyl dithiophosphoric acid oxygen molybdenum of mass ratio 60%～50% is compound.
Rust-preventive agent is that imidazolidine derivatives and 40%～50% the dodecenylsuccinic acid of mass ratio 60%～50% is compound.
Water repellent agent is zirconium carbonate ammonium.
Weighting agent is molybdenumdisulphide.
Crane arm of the present invention has with the remarkable advantage of lubricating grease:
1. good combination property, every performance index all reach service requirements; It has that good sticking warm nature, thermooxidizing are stable, rust-preventing characteristic, adhesivity, water resisting property, erosion resistance, resistance to abrasion, mechanical stability and outstanding biological degradability.Can satisfy crane arm uses under the working condition of harshness.
2. the imidazolidine derivatives that adopts has the molecule of many adsorption site absorption, can form the stable adsorption film of one deck on the metallic surface, has the effect of corrosion inhibition, can also improve the water repelling property of lubricating grease simultaneously.
Embodiment
The present invention is directed to the operating mode characteristics of crane arm, by adopting artificial neural network algorithm, targetedly multiple functional additive is selected and prediction, and adopted genetic algorithm to carry out choosing of optimization prescription, seek to obtain the crane arm lubricating grease component of different size, cost performance.The performance that this component is good and every physical and chemical index all reach service requirements, can satisfy crane arm and use under the working condition of harshness.
The present invention adopt polyethers and poly-alpha olefins (PAO) compound as crane arm with grease base plinth oil, adopt the composite polyurea viscosifying agent, effect, characteristic to multiple functional additive are carried out mathematical model analog calculation and screening, study their compatibleness, in the hope of the additive usage quantity of the best, finally obtain the prescription of lubricating grease.Research arm special grease has effectively improved the rubbing characteristics of slide block, eliminates friction self-excited vibration, reduces the arm wearing and tearing.
Embodiment 1:
Following component is in harmonious proportion by mass percentage and forms:
Embodiment 2:
Following component is in harmonious proportion by mass percentage and forms:
Embodiment 3:
Following component is in harmonious proportion by mass percentage and forms:
Measure through provincial technical supervision department, the every physical and chemical index of product of the present invention all reaches service requirements.The every typical physical and chemical index of the product of embodiment 2 sees Table 1.
The table 1 crane arm typical physical and chemical index of lubricating grease
Claims (8)
1. a crane arm lubricating grease is characterized in that adopting polyethers and poly-alpha olefins PAO compound as base oil, and viscosifying agent is the composite polyurea viscosifying agent, cooperates multiple composite additive, and the mass percent of its raw material is:
2. crane arm lubricating grease as claimed in claim 1 is characterized in that base oil is that polyethers and 50%～40% the poly-alpha olefins PAO of mass ratio 50%～60% is compound.
3. crane arm lubricating grease as claimed in claim 1 is characterized in that viscosifying agent is the composite polyurea viscosifying agent.
4. crane arm lubricating grease as claimed in claim 1 is characterized in that extreme pressure anti-wear additives is that boric acid ester amine salt and 40%～30% the benzyl disulfide thing of mass ratio 60%～70% is compound.
5. crane arm lubricating grease as claimed in claim 1 is characterized in that oxidation inhibitor is that organic copper salt and 40%～50% the oil soluble dialkyl dithiophosphoric acid oxygen molybdenum of mass ratio 60%～50% is compound.
6. crane arm lubricating grease as claimed in claim 1 is characterized in that rust-preventive agent is that imidazolidine derivatives and 40%～50% the dodecenylsuccinic acid of mass ratio 60%～50% is compound.
7. crane arm lubricating grease as claimed in claim 1 is characterized in that water repellent agent is zirconium carbonate ammonium.
8. crane arm lubricating grease as claimed in claim 1 is characterized in that weighting agent is molybdenumdisulphide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310186119.8A CN103254980B (en) | 2013-05-19 | 2013-05-19 | Lubricating grease for crane jib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310186119.8A CN103254980B (en) | 2013-05-19 | 2013-05-19 | Lubricating grease for crane jib |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103254980A true CN103254980A (en) | 2013-08-21 |
| CN103254980B CN103254980B (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310186119.8A Active CN103254980B (en) | 2013-05-19 | 2013-05-19 | Lubricating grease for crane jib |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104312661A (en) * | 2014-10-16 | 2015-01-28 | 新乡市恒星化工有限责任公司 | Copper-based anti-occlusion high-temperature threaded sealing lubricating grease and preparation method thereof |
| CN106590888A (en) * | 2016-11-28 | 2017-04-26 | 广西大学 | Environment-friendly wide-temperature-range breaker upper arm frame composite polyurea lubricating grease composition |
| CN113122353A (en) * | 2021-04-01 | 2021-07-16 | 于长明 | Special oil for maintaining telescopic arm of crane and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124280A (en) * | 1994-12-06 | 1996-06-12 | 陈琰 | Anti extreme pressure heavy load grease |
| CN101693851A (en) * | 2009-09-30 | 2010-04-14 | 中国石油化工股份有限公司 | Synthetic high-temperature lubricating grease and production method thereof |
-
2013
- 2013-05-19 CN CN201310186119.8A patent/CN103254980B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124280A (en) * | 1994-12-06 | 1996-06-12 | 陈琰 | Anti extreme pressure heavy load grease |
| CN101693851A (en) * | 2009-09-30 | 2010-04-14 | 中国石油化工股份有限公司 | Synthetic high-temperature lubricating grease and production method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104312661A (en) * | 2014-10-16 | 2015-01-28 | 新乡市恒星化工有限责任公司 | Copper-based anti-occlusion high-temperature threaded sealing lubricating grease and preparation method thereof |
| CN106590888A (en) * | 2016-11-28 | 2017-04-26 | 广西大学 | Environment-friendly wide-temperature-range breaker upper arm frame composite polyurea lubricating grease composition |
| CN113122353A (en) * | 2021-04-01 | 2021-07-16 | 于长明 | Special oil for maintaining telescopic arm of crane and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103254980B (en) | 2014-10-22 |
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