CN107312588A - 一种高稳定性盾构机主轴承密封油脂及其制备方法 - Google Patents

一种高稳定性盾构机主轴承密封油脂及其制备方法 Download PDF

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CN107312588A
CN107312588A CN201710387319.8A CN201710387319A CN107312588A CN 107312588 A CN107312588 A CN 107312588A CN 201710387319 A CN201710387319 A CN 201710387319A CN 107312588 A CN107312588 A CN 107312588A
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main shaft
parts
shield machine
shaft seals
high stability
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CN107312588B (zh
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高玉荣
韩建国
赵汝鸣
闻和咏
宋洪雁
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Shenyang Shanmeng Xin Building Materials Co Ltd
ZHONGHAO (DALIAN) CHEMICAL RESEARCH AND DESIGN INSTITUTE Co Ltd
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ZHONGHAO (DALIAN) CHEMICAL RESEARCH AND DESIGN INSTITUTE Co Ltd
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Abstract

本发明公开了一种高稳定性盾构机主轴承密封油脂及其制备方法。该盾构机主轴承密封油脂是由下列重量份数的组分制成：基础油10‑40份，粘附剂10‑30份，极压抗磨剂1‑10份，抗氧防腐剂0.5‑3份，防锈剂2‑7份，润滑剂15‑25份，纤维4‑15份，填料5‑45份。本发明制备的高稳定性盾构机主轴承密封油脂具有粘附性优异、泵送性好、密封性强、抗水冲性良好、抗极压耐磨性好、环境友好及成本低廉的特点；不含有与主轴橡胶密封圈不相容的成分；添加的填料能够与盾构机主轴承密封油脂在工作过程中产生的酸性气体反应，减少对盾构机金属部件的腐蚀；可完全代替进口产品。

Description

一种高稳定性盾构机主轴承密封油脂及其制备方法
技术领域
本发明涉及一种密封油脂及其制备方法，尤其涉及的是一种高稳定性盾构机主轴承密封油脂及其制备方法，属于密封材料技术领域。
背景技术
盾构机主轴承密封油脂是一种专门为密封圈开发的密封油脂，可防止土壤、水等污染主轴承润滑系统，另外还能够润滑密封圈，以保证盾构隧道掘进机螺旋部件的优良密封性能。我国使用盾构机主轴承密封油脂主要依靠进口，价格昂贵。某外国制造产品自进入中国市场以来，普遍反映主轴承油脂消耗量过大，甚至达到其他厂家盾构的2-3倍，导致使用方施工成本大大增加[李大伟, 赵新合. 某盾构主轴承油脂消耗分析与控制, 隧道建设, 2014,34(1):83-87]。国内某公司生产的不同批次的盾构机主轴承密封油脂，存在针入度明显不同，流动性不好，泵送困难，质量不稳定，长期使用性能不稳定的润滑脂可能是出脂不充分的重要因素之一 [张红耀. TB880E型隧道掘进机主轴承损坏原因分析, 隧道建设，2014, 34(11):1092-1097]。
近年来，我国的跨江跨海隧道建设需求急剧增加，因而对盾构机主轴承密封油脂的性能提出更高的要求。因此，开发一种高稳定性盾构机主轴承密封油脂势在必行。
发明内容
本发明针对盾构机主轴承密封油脂质量不稳定问题，将碳酸钙与极压抗磨剂同时引入到盾构机主轴承密封油脂中，提供了一种粘附性强、抗水冲击和密封性能好、泵送性优良、抗极压耐磨优异、环境友好、成本低廉的盾构机主轴承密封油脂及其制备方法。
为实现上述目的，本发明通过以下技术方案实现：
一种高稳定性盾构机主轴承密封油脂是由下列重量份数的组分制成：基础油10-40份，粘附剂10-30份，极压抗磨剂1-10份，抗氧防腐剂0.5-3份，防锈剂2-7份，润滑剂15-25份，纤维4-15份，填料5-45份。
所述基础油为Ⅱ类基础油和/或Ⅲ类基础油。
所述粘附剂为聚甲基丙烯酸甲酯（PMA）、聚异丁烯（PIB）、乙丙烯共聚物（OCP）、氢化苯乙烯丁二烯共聚物（SD）及氢化苯乙烯异戊二烯共聚物（HSP）、聚正丁基乙烯基醚（BB）中的一种或几种。
所述极压抗磨剂为氯化石蜡、硫化烯烃棉籽油、硫化猪油、硫化异丁烯、亚磷酸二丁酯中的一种或几种。
所述抗氧防腐剂为硫磷双辛基碱性锌盐或硫磷丁辛基锌盐。
所述防锈剂为苯三唑十八胺盐、石油硫酸钡、合成磺酸钙或2-巯基苯并噻二唑中至少一种。
所述润滑剂为二硫化钼或二硫化钨。
所述纤维为棉纤维、木纤维、竹纤维、纤维素纤维、可生物降解化学纤维中的一种或几种。
所述填料为轻质碳酸钙、重质碳酸钙、活性碳酸钙中的一种或几种。
一种高性能盾构机主轴承密封油脂制备方法按照下列步骤完成：
首先将计量的基础油、粘附剂、极压抗磨剂、抗氧防腐剂和防锈剂加入捏合机中捏合，捏合时间为20-40分钟；然后将润滑剂加入捏合机中继续捏合，捏合时间为40-60分钟；再将纤维加入到捏合机继续捏合，捏和时间为20-40分钟；最后将填料加入捏合机中继续捏合，捏合时间为120-180分钟，即得盾构机主轴承密封油脂。
本发明一种高稳定性盾构机主轴承密封油脂及其制备方法的有益效果是：碳酸钙与极压抗磨剂同时引入解决了盾构机主轴承密封油脂质量不稳定的问题，提高了盾构机主轴承密封油脂的极压抗磨性，能够有效防止土壤、水、泥浆、渣土等污染主轴承润滑系统而造成盾构机旋转部件的损坏；该高稳定性盾构机主轴承密封油脂不仅泵送性良好，还不含有与主轴橡胶密封圈不相容的成分；添加的填料能够与盾构机主轴承密封油脂在工作过程中产生的酸性气体反应，减少对盾构机金属部件的腐蚀；该盾构机主轴承密封油脂可生物降解，不会造成对土壤的污染，可完全代替进口产品且价格低廉。
具体实施方式
下面结合实施例对本发明做进一步说明，但本发明并不局限于此，实施例中的制备方法均为本发明的常规制备方法，不再详细描述。
实施例1:
将Ⅱ类基础油26 kg，聚异丁烯16 kg，聚甲基丙烯酸甲酯14 kg，氯化石蜡10 kg，硫磷丁辛基锌盐3 kg，石油硫酸钡3 kg加入捏合机中捏合，捏合时间为20 分钟；然后将二硫化钼26 kg加入捏合机中继续捏合，捏合时间为50分钟；再将棉纤维12 kg加入捏合机中继续捏合，捏合时间20分钟；最后将活性碳酸钙10 kg加入捏合机中继续捏合，捏合时间为150分钟，得盾构机主轴承密封油脂。
实施例2:
将Ⅱ类基础油15 kg，T613乙丙烯共聚物粘度指数改进剂35 kg，硫化棉籽油12 kg，合成磺酸钙4 kg加入捏合机中捏合，捏合时间为20 分钟；然后将二硫化钼15 kg，二硫化钨15 kg加入捏合机中继续捏合，捏合时间为50分钟；再将竹纤维9 kg加入捏合机中继续捏合，捏合时间20分钟；最后将轻质碳酸钙10 kg，重质碳酸钙5 kg加入捏合机中继续捏合，捏合时间为180分钟，得盾构机主轴承密封油脂。
实施例3:
将Ⅲ类基础油40 kg，聚异丁烯10 kg，聚正丁基乙烯基醚10 kg，亚磷酸二丁酯10 kg，苯三唑十八胺盐1.5 kg加入捏合机中捏合，捏合时间为30 分钟；然后将二硫化钼30.5 kg，加入捏合机中继续捏合，捏合时间为60分钟；再将竹纤维3 kg、生物可降解聚酯纤维3 kg加入捏合机中继续捏合，捏合时间40分钟；最后将轻质碳酸钙12 kg加入捏合机中继续捏合，捏合时间为180钟，得盾构机主轴承密封油脂。
实施例4:
将Ⅱ类基础油20 kg，Ⅲ类基础油20 kg，氢化苯乙烯丁二烯共聚物20 kg，氯化石蜡13kg，硫磷双辛基碱性锌盐2 kg，2-巯基苯并噻二唑4 kg加入捏合机中捏合，捏合时间为40分钟；然后将二硫化钼25 kg加入捏合机中继续捏合，捏合时间为60分钟；再将木纤维4 kg，棉纤维4 kg，纤维素纤维4 kg加入捏合机中继续捏合，捏合时间20分钟；最后将活性碳酸钙8 kg加入捏合机中继续捏合，捏合时间为180分钟，得盾构机主轴承密封油脂。
本发明实施例1-4高稳定性盾构机主轴承密封油脂质量检测指标为：
检测项目 实施例1 实施例2 实施例3 实施例4
密度（20℃），g/cm3 1.21 1.19 1.20 1.20
锥入度（25℃，0.1 mm） 255 250 265 253
泵送性（25℃，1 MPa），g/min 130 132 125 127
粘附性（25℃，min） 2.45 3.10 1.75 1.67
四球磨损（1小时，40 kg，75℃） 0.83 0.84 0.89 0.78
以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，任何熟悉本领域的技术人员在本发明公开后，都能够轻易进行组分变化或替换，而一切不脱离本发明和范围的技术方案及改进，其均应涵盖在本发明的权利要求范围。

Claims (9)

1.高稳定性盾构机主轴承密封油脂，其特征是：包括下列重量份数组分制成：基础油10-40份，粘附剂10-30份，极压抗磨剂1-10份，抗氧防腐剂0.5-3份，防锈剂2-7份，润滑剂15-25份，纤维4-15份，填料5-45份；其制备方法为：首先将基础油、粘附剂、极压抗磨剂、抗氧防腐剂和防锈剂加入捏合机中捏合，捏合时间为20-40 分钟；然后将润滑剂加入捏合机中继续捏合，捏合时间为40-60分钟；再将纤维加入到捏合机继续捏合，捏和时间为20-40分钟；最后将填料加入捏合机中继续捏合，捏合时间为120-180分钟，即得盾构机主轴承密封油脂。
2.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述基础油为Ⅱ类基础油和/或Ⅲ类基础油。
3.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述粘附剂为聚甲基丙烯酸甲酯（PMA）、聚异丁烯（PIB）、乙丙烯共聚物（OCP）、氢化苯乙烯丁二烯共聚物（SD）、氢化苯乙烯异戊二烯共聚物（HSP）、聚正丁基乙烯基醚（BB）中的一种或几种。
4.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述极压抗磨剂为氯化石蜡、硫化烯烃棉籽油、硫化猪油、硫化异丁烯、亚磷酸二丁酯中的一种或几种。
5.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述抗氧防腐剂为硫磷双辛基碱性锌盐或硫磷丁辛基锌盐。
6.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述防锈剂为苯三唑十八胺盐、石油硫酸钡或2-巯基苯并噻二唑中至少一种。
7.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述润滑剂为二硫化钼或二硫化钨。
8.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述纤维为棉纤维、木纤维、竹纤维、纤维素纤维、可生物降解化学纤维中的一种或几种。
9.根据权利要求1所述的高稳定性盾构机主轴承密封油脂，其特征是：所述填料为轻质碳酸钙、重质碳酸钙、活性碳酸钙中的一种或几种。
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