CN112029556A - 风电机组偏航变桨开式齿轮润滑脂组合物及其制备方法 - Google Patents
风电机组偏航变桨开式齿轮润滑脂组合物及其制备方法 Download PDFInfo
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- 239000004519 grease Substances 0.000 title claims abstract description 41
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 35
- 239000000203 mixture Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000002199 base oil Substances 0.000 claims abstract description 57
- 239000000314 lubricant Substances 0.000 claims abstract description 29
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 25
- 239000002562 thickening agent Substances 0.000 claims abstract description 22
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims abstract description 11
- 239000002480 mineral oil Substances 0.000 claims abstract description 9
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 9
- 239000010696 ester oil Substances 0.000 claims abstract description 6
- 229920005862 polyol Polymers 0.000 claims abstract description 6
- 150000003077 polyols Chemical class 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000003755 preservative agent Substances 0.000 claims abstract description 3
- 230000002335 preservative effect Effects 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 40
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 24
- 239000005711 Benzoic acid Substances 0.000 claims description 19
- 235000021355 Stearic acid Nutrition 0.000 claims description 19
- 235000010233 benzoic acid Nutrition 0.000 claims description 19
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 19
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 19
- 239000008117 stearic acid Substances 0.000 claims description 19
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 239000013638 trimer Substances 0.000 claims description 14
- 239000013556 antirust agent Substances 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 9
- 238000010791 quenching Methods 0.000 claims description 9
- 230000000171 quenching effect Effects 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 8
- 239000012964 benzotriazole Substances 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 7
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 claims description 6
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical group CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 6
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 6
- WSFQLUVWDKCYSW-UHFFFAOYSA-M sodium;2-hydroxy-3-morpholin-4-ylpropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN1CCOCC1 WSFQLUVWDKCYSW-UHFFFAOYSA-M 0.000 claims description 6
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical group 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims description 2
- 239000002530 phenolic antioxidant Substances 0.000 claims description 2
- 150000001642 boronic acid derivatives Chemical class 0.000 claims 1
- 150000003014 phosphoric acid esters Chemical class 0.000 claims 1
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 11
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 8
- 238000009924 canning Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 230000002421 anti-septic effect Effects 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 5
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 4
- 239000012990 dithiocarbamate Substances 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- -1 phosphate ester Chemical class 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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Abstract
本发明涉及风电机组偏航变桨开式齿轮润滑脂组合物及其制备方法。以重量份数计该润滑脂组合物包含:稠化剂5.0‑15.0份;基础油64.0‑88.99份;极压抗磨剂0.5‑5.0份;固体润滑剂5.0‑10.0份;抗氧剂0.5‑4.0份;防锈防腐剂0.01‑2.0份;所述稠化剂为复合铝基稠化剂;所述基础油选自矿物油、多元醇酯类油、PAO合成油中的一种或多种;所述固体润滑剂的粒径为0.2~2μm。本发明润滑脂组合物具有良好粘附性能、极压抗磨性能和低温性能,满足风电机组偏航变桨开式齿轮润滑需求。
Description
技术领域
本发明涉及润滑脂技术领域,尤其涉及风电机组偏航变桨开式齿轮润滑脂组合物及其制备方法。
背景技术
近年来,风电呈现爆发式增长,每年的新增装机容量逐年增长。风电设备的主要难度是机组在野外应可靠运行,经受住各种极端恶劣天气和非常复杂的风力交变载荷。所以机组设备看起来很简单,实际上技术很复杂,对相关零配件的要求也更高,这也对润滑脂的研发提出了较高的挑战。
偏航变桨开式齿轮长期处于低速、重载的工作环境中,要经常承受较大的冲击载荷和扭矩。由于频繁启停的影响,齿面的磨损较为严重。润滑脂裸露在外,要保证齿轮能有较长的寿命,润滑脂在常温和静止状态时能够保持一定的形态而不流动,可以较好的粘附在齿轮表面不滑落。
另外,偏航变桨开式齿轮的齿面在运动过程中,同时具有滚动和滑动,且滑动的方向和速度变化较快。与滑动轴承相比,齿轮的曲率半径小,形成油楔的条件差,其润滑是断续的,每次啮合都需要重新建立油膜,属于边界润滑和混合润滑状态。偏航变桨长期处于高负荷工作状态,使得齿面的摩擦部位很容易磨损,如果润滑脂没有良好的极压抗磨性能,极易造成齿面过早失效。同时,由于偏航变桨齿轮频繁启停,导致齿面的微动磨损较为严重。因此,润滑脂要有较好的抗微动磨损性能才能保证偏航变桨开式齿轮的正常工作。
目前,专利中虽有开式齿轮润滑脂的公开,但并未有针对风电机组偏航变桨开式齿轮用润滑脂。中国专利CN104164277A提供了一种重负荷开式齿轮润滑脂及其制备方法,该方法针对重负荷工况采用复合铝稠化剂,并添加极压抗磨剂和固体润滑剂提高产品的极压抗磨性,虽然可以满足风电机组偏航变桨开式齿轮重负荷的需求,一方面其基础油采用的是矿物油为主,不能满足风电机组低温-40℃的运转要求,另一方面该润滑脂为半流体形式,粘性不足,易甩油,造成摩擦表面润滑不良和污染机组内部环境。中国专利CN108865350A、CN106118813A和CN1970706A所述润滑脂组合物都是半流体的形式,低温性能差、抗磨性能达不到风电机组低速、重载和频繁启动的特殊工况需求。因此,研究一种风电机组偏航变桨开式齿轮专用润滑脂十分必要。
发明内容
本发明实施例提供了风电机组偏航变桨开式齿轮润滑脂组合物及其制备方法,本发明中,风电机组偏航变桨开式齿轮润滑脂组合物采用科学设计的基础油,满足风电机组偏航变桨开式齿轮对润滑脂粘附性的要求,进一步的,稠化剂采用复合铝皂,并添加了固体润滑剂、极压抗磨剂、防锈防腐剂和抗氧剂,配伍性能优良的极压抗磨剂及特殊的固体润滑剂,在偏航变桨开式齿轮金属表面相互协同,减少金属间的磨损和增加润滑脂的粘附性能,同时满足风电机组偏航变桨开式齿轮的润滑要求。
本发明一方面提供一种风电机组偏航变桨开式齿轮润滑组合物,以重量份数计包含:
所述稠化剂为复合铝基稠化剂;所述基础油选自矿物油、多元醇酯类油、PAO合成油中的一种或多种;所述固体润滑剂的粒径为0.2~2μm。
根据本发明的一些优选实施方式,所述稠化剂为由包括硬脂酸、苯甲酸和异丙醇铝三聚体为原料反应制得。
根据本发明的一些优选实施方式,所述苯甲酸与所述硬脂酸的摩尔比为2:1~0.5:1;和/或,在所述稠化剂的原料中,所述异丙醇铝三聚体的用量为65~85%。本发明采用的稠化剂和基础油特别适用于风电机组偏航变桨开式齿轮,同时稠化剂以上述类型及用量的在体系中使用能改善润滑脂组合物的抗磨性、粘附性等综合性能。
根据本发明的一些优选实施方式,所述基础油的40℃运动粘度为200-600mm2/s;优选的,所述基础油的40℃运动粘度为300-600mm2/s。本发明采用的基础油类型和粘度在该体系中能够很好的与特定稠化剂配合,同时对粘附性能、低温性能有所提高。本发明使用温度范围为-40~180℃,不仅保证低温下的使用要求,在高温下也保持良好的润滑特性,避免流失。
根据本发明的一些优选实施方式,所述固体润滑剂选自石墨、二硫化钼、碳酸钙和氧化锌中的一种或几种;更优选选自氧化锌;和/或,粒径为0.5~1μm。发明人意外发现,采用特定固体润滑剂类型及用量,在该配方体系中显著改善的综合性能。
根据本发明的一些优选实施方式,所述极压抗磨剂选自二烷基二硫代磷酸锌、二烷基二硫代氨基甲酸酯、磷酸酯和硼酸酯的一种或几种。本发明采用的极压抗磨剂与固化剂协同配合,能大幅提高抗磨性能,同时避免偏航变桨齿轮因频繁启停导致的齿面的微动磨损,进一步的,极压抗磨剂、固化剂与稠化剂相互协同还提高了润滑脂组合物的粘附性能。
根据本发明的一些优选实施方式,所述防锈防腐剂为苯骈三氮唑和/或环烷酸锌;和/或,所述抗氧剂为胺类抗氧剂和/或酚类抗氧剂;优选的,所述胺类抗氧剂选自二苯胺、萘胺和对苯二胺中一种或两种,和/或,所述酚类抗氧剂为2,6-二叔丁基对甲苯酚和/或α-萘酚。
根据本发明的一些优选实施方式,所述润滑脂组合物的配方为:
本发明的另一方面在于提供所述风电机组偏航变桨开式齿轮润滑组合物的制备方法,包括如下步骤:将硬脂酸、苯甲酸和20~60%的基础油混合,升温至70-90℃,充分搅拌,加入异丙醇铝三聚体,升温至90-130℃,恒温;升温至130-150℃,恒温;升温至180-220℃,恒温;加入10~40%基础油急冷降温;降温至150-180℃,加入剩余基础油和抗氧剂;降温至80℃以下,加入极压抗磨剂、固体润滑剂和防锈剂,经搅拌、后处理,即得。
根据本发明的一些优选实施方式,包括如下步骤:将硬脂酸、苯甲酸和30~50%的基础油混合、搅拌,升温至80-90℃,搅拌至硬脂酸和苯甲酸充分溶解,加入异丙醇铝三聚体,升温至90-95℃,恒温50~70min;升温至130-140℃,恒温60-90min;升温至200-210℃,恒温3-5min,加入15~25%基础油急冷降温;降温至150-180℃,加入剩余基础油和抗氧剂;降温至80℃以下,加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理分散研磨,即得。
本发明的一些优选具体实施方式,包括如下步骤:将硬脂酸、苯甲酸和40%的基础油加入反应釜进行搅拌,并升温至80-90℃;当两种酸搅拌至完全溶解时,加入异丙醇铝三聚体,升温至90-95℃开始恒温60min;升温至130-140℃,恒温60-90min;继续加热至200-210℃,恒温3-5min,加入20%基础油急冷降温;降温至150-180℃,加入剩余基础油和全部抗氧剂;降温至80℃以下加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理设备分散研磨后成品罐装。
本发明所提供的风电机组偏航变桨开式齿轮润滑脂与同类润滑脂产品相比,至少具有以下的优点:
1)本发明的润滑脂具有良好粘附性,在70℃,48h滑落试验测试中无任何位移和流失现象;
2)本发明的润滑脂在粘度和稠度都比较大的情况下,齿轮磨损小,能够有效降低齿轮啮合中的摩擦损耗,降低能耗,在FZG测试中,失效等级>12级;
3)本发明的润滑脂具有较低的使用温度,可满足-40℃的使用要求。
具体实施方式
以下实施例用于说明本发明,但不用来限制本发明的范围。实施例中未注明具体技术或条件者,按照本领域内的文献所描述的技术或条件,或者按照产品说明书进行。
本发明中,所用仪器等未注明生产厂商者,均为可通过正规渠道商购买得到的常规产品。本发明中所用的原料均可在国内产品市场方便买到。
实施例1
稠化剂:240.0g,其中,苯甲酸与硬脂酸摩尔比为1.2:1,异丙醇铝三聚体132g;
基础油:2400g(PAO合成油100%,基础油40℃运动粘度:212mm2/s);
极压抗磨剂:二烷基二硫代磷酸锌33.6g,磷酸酯33.6g;
抗氧剂:2,6-二叔丁基对甲苯酚11.2g,二苯胺11.2g;
防锈防腐剂:苯骈三氮唑0.12g;
固体润滑剂:石墨67.2g,二硫化钼67.2g。
将硬脂酸、苯甲酸和960g的基础油加入反应釜进行搅拌,并升温至85℃;当两种酸搅拌至完全溶解时,加入异丙醇铝三聚体,升温至92℃开始恒温60min;升温至136℃,恒温60min;继续加热至205℃,恒温3min,加入480g基础油急冷降温;降温至155℃,加入剩余基础油和全部抗氧剂;降温至80℃加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理设备分散研磨后成品罐装。
实施例2
稠化剂:240.0g,其中,苯甲酸与硬脂酸摩尔比为1:1,异丙醇铝三聚体144g;
基础油:2400g(PAO合成油70%,矿物油30%,基础油40℃运动粘度:304.4mm2/s);
极压抗磨剂:二烷基二硫代磷酸锌22.4g,二烷基二硫代氨基甲酸酯44.8;
抗氧剂:二苯胺22.4g;
防锈防腐剂:环烷酸锌11.2g;
固体润滑剂:碳酸钙179.2g。
将硬脂酸、苯甲酸和960g的基础油加入反应釜进行搅拌,并升温至88℃;当两种酸搅拌至完全溶解时,加入异丙醇铝三聚体,升温至95℃开始恒温60min;升温至133℃,恒温60min;继续加热至206℃,恒温3min,加入480g基础油急冷降温;降温至165℃,加入剩余基础油和全部抗氧剂;降温至80℃加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理设备分散研磨后成品罐装。
实施例3
稠化剂:240.0g,其中,苯甲酸与硬脂酸摩尔比为0.8:1,异丙醇铝三聚体:154g;
基础油:2400g(PAO合成油60%,多元醇酯类油20%,矿物油20%,基础油40℃运动粘度:420.8mm2/s);
极压抗磨剂:二烷基二硫代氨基甲酸酯44.8,硼酸酯11.2g;
抗氧剂:2,6-二叔丁基对甲苯酚11.2g,对苯二胺11.2g;
防锈防腐剂:苯骈三氮唑1.1g,环烷酸锌11.2g;
固体润滑剂:氧化锌224g。
将硬脂酸、苯甲酸和960g的基础油加入反应釜进行搅拌,并升温至84℃;当两种酸搅拌至完全溶解时,加入异丙醇铝三聚体,升温至92℃开始恒温60min;升温至136℃,恒温60min;继续加热至208℃,恒温4min,加入480g基础油急冷降温;降温至175℃,加入剩余基础油和全部抗氧剂;降温至75℃加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理设备分散研磨后成品罐装。
实施例4
稠化剂:240.0g,其中,苯甲酸与硬脂酸摩尔比为0.5:1,异丙醇铝三聚体166g;
基础油:2400g(矿物油100%,基础油40℃运动粘度:533mm2/s);
极压抗磨剂:二烷基二硫代氨基甲酸酯44.8,磷酸酯22.4g;
抗氧剂:α-萘酚22.4g;
防锈防腐剂:苯骈三氮唑1.1g;
固体润滑剂:二硫化钼112g,碳酸钙67.2g。
将硬脂酸、苯甲酸和960g的基础油加入反应釜进行搅拌,并升温至86℃;当两种酸搅拌至完全溶解时,加入异丙醇铝三聚体,升温至95℃开始恒温60min;升温至138℃,恒温60min;继续加热至210℃,恒温3min,加入480g基础油急冷降温;降温至173℃,加入剩余基础油和全部抗氧剂;降温至75℃加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理设备分散研磨后成品罐装。
对比例1
稠化剂:300g,其中12-羟基硬脂酸:癸二酸质量比例为4:1,碱量62.8g,其中氢氧化锂:氢氧化钙质量比例为9:1;
基础油:2400g(PAO合成油60%,多元醇酯类油20%,矿物油20%,基础油40℃运动粘度:420.8mm2/s);
极压抗磨剂:二烷基二硫代氨基甲酸酯44.8g,硼酸酯11.2g;
抗氧剂:2,6-二叔丁基对甲苯酚11.2g,对苯二胺11.2g;
防锈防腐剂:苯骈三氮唑1.1g,环烷酸锌11.2g;
固体润滑剂:氧化锌224g。
1)将1000g基础油、全部12-羟基硬脂酸加入到反应釜,升温至80℃,加入20%氢氧化锂(11.3g)溶液和全部氢氧化钙溶液开始反应1h。温度控制在100℃加入二元酸;搅拌50分钟后,温度在100℃时,开始滴加剩余氢氧化锂溶液;
2)反应完成后,搅拌加热到140℃,恒温60min,升温至160℃,加入500g基础油和全部抗氧剂,继续加热至210℃,加入500g基础油冷却降温,降温至170℃,加入剩余基础油和全部抗氧剂;降温至75℃加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理设备分散研磨后成品罐装。
对比例2
稠化剂:12-羟基硬脂酸300g,碱量:氢氧化锂45g;
基础油:2400g(PAO合成油60%,多元醇酯类油20%,矿物油20%,基础油40℃运动粘度:420.8mm2/s);
极压抗磨剂:二烷基二硫代氨基甲酸酯44.8,硼酸酯11.2g;
抗氧剂:2,6-二叔丁基对甲苯酚11.2g,对苯二胺11.2g;
防锈防腐剂:苯骈三氮唑1.1g,环烷酸锌11.2g;
固体润滑剂:氧化锌224g。
将1000g基础油、全部12-羟基硬脂酸加入到反应釜,升温至80℃,加入全部氢氧化锂溶液开始反应1h。反应完成后,继续加热至208℃,,加入500g基础油冷却降温,降温至178℃,加入剩余基础油和全部抗氧剂;降温至73℃加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理设备分散研磨后成品罐装。
对实施例1~4和对比例1~2得到的润滑脂进行性能测试(测试结果见表1)。
表1润滑脂性能测试结果
从表1数据中可看出,本发明实施例1-4制备的润滑脂均表现出优异的粘附性能,良好的极压抗磨性、良好的抗水性、防锈性。完全符合风电机组偏航变桨开式齿轮对润滑脂的要求和野外运行的工况条件。本发明可向使用设备提供更可靠全面的防护,具有很好的应用前景。
虽然,上文中已经用一般性说明及具体实施方案对本发明作了详尽的描述,但在本发明基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。
Claims (10)
2.根据权利要求1所述的润滑脂组合物,其特征在于,所述稠化剂为由包括硬脂酸、苯甲酸和异丙醇铝三聚体为原料反应制得。
3.根据权利要求2所述的润滑脂组合物,其特征在于,所述苯甲酸与所述硬脂酸的摩尔比为2:1~0.5:1;和/或,在所述稠化剂的原料中,所述异丙醇铝三聚体的用量为65~85%。
4.根据权利要求1-3任一项所述的润滑脂组合物,其特征在于,所述基础油的40℃运动粘度为200-600mm2/s;优选的,所述基础油的40℃运动粘度为300-600mm2/s。
5.根据权利要求1-4任一项所述的润滑脂组合物,其特征在于,所述固体润滑剂选自石墨、二硫化钼、碳酸钙和氧化锌中的一种或几种;更优选选自氧化锌;和/或,粒径为0.5~1μm。
6.根据权利要求1-5任一项所述的润滑脂组合物,其特征在于,所述极压抗磨剂选自二烷基二硫代磷酸锌、二烷基二硫代氨基甲酸酯、磷酸酯和硼酸酯的一种或几种。
7.根据权利要求1-6任一项所述的润滑脂组合物,其特征在于,所述防锈防腐剂为苯骈三氮唑和/或环烷酸锌;和/或,
所述抗氧剂为胺类抗氧剂和/或酚类抗氧剂;
优选的,所述胺类抗氧剂选自二苯胺、萘胺和对苯二胺中一种或两种,和/或,所述酚类抗氧剂为2,6-二叔丁基对甲苯酚和/或α-萘酚。
9.权利要求1-8任一项所述风电机组偏航变桨开式齿轮润滑脂组合物的制备方法,其特征在于,包括以下步骤:将硬脂酸、苯甲酸和20~60%的基础油混合,升温至70-90℃,充分搅拌,加入异丙醇铝三聚体,升温至90-130℃,恒温;升温至130-150℃,恒温;升温至180-220℃,恒温;加入10~40%基础油急冷降温;降温至150-180℃,加入剩余基础油和抗氧剂;降温至80℃以下,加入极压抗磨剂、固体润滑剂和防锈剂,经搅拌、后处理,即得。
10.权利要求9所述的制备方法,其特征在于,包括如下步骤:将硬脂酸、苯甲酸和30~50%的基础油混合、搅拌,升温至80-90℃,搅拌至硬脂酸和苯甲酸充分溶解,加入异丙醇铝三聚体,升温至90-95℃,恒温50~70min;升温至130-140℃,恒温60-90min;升温至200-210℃,恒温3-5min,加入15~25%基础油急冷降温;降温至150-180℃,加入剩余基础油和抗氧剂;降温至80℃以下,加入极压抗磨剂、固体润滑剂和防锈剂,搅拌均匀后,经后处理分散研磨,即得。
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