The utility model relates to a novel four-row cylindrical roller bearing, which comprises an inner ring, two outer rings, an outer ring, two cages and four rows of cylindrical rollers. The outer ring is located outside the inner ring, and the outer ring is provided with multiple oil holes. The outer ring is located between the two outer rings. The cage consists of a ring beam and a plurality of pillars on both sides of the beam, and the adjacent two pillars. A pocket hole is formed between the columns for filling cylindrical rollers, which is characterized in that the thickness of the crossbeam is greater than that of the pillar, and the lower surface of the crossbeam is equal to the lower surface of the pillar. By reducing the thickness of the prop on the original basis, on the one hand, it enlarges the storage capacity of lubricating grease inside the bearing to ensure sufficient lubrication in the working process; on the other hand, it reduces the contact surface between the cage and the cylindrical roller, thereby reducing friction, reducing the heating of the bearing, improving the continuous running time of the bearing, saving raw materials and reducing manufacturing. Cost.
【技术实现步骤摘要】
一种新型四列圆柱滚子轴承
本技术具体涉及一种新型四列圆柱滚子轴承。
技术介绍
四列圆柱滚子轴承是一种可分离型轴承。其内、外圈与滚子是线性接触,摩擦系数小,承受径向载荷能力较大,轴承的清洗、检查和拆卸均很方便。此类轴承可获得较高的加工精度,加之轴承本身的磨擦较其它轴承为低,故四列圆柱滚子轴承特别适用于要求高速和高精度的轧辊,如线材轧机,型材轧机和薄板冷热轧机、开坯机等的支承。在滚子轴承的几大关键零件中,保持架是其中重要零件之一,主要起隔离圆柱滚子和均匀分布载荷的作用。常规中小型轧机用四列短圆柱滚子轴承,保持架通常为铅黄铜制造,在轴承使用过程中,由于轧钢机的使用工况,轴承经常会产生如下问题:第一,润滑不足,多数轧机在线工作时没有再润滑装置,长时间重负荷、高转速造成轴承内部润滑脂干涸,从而轴承烧损;第二,以前的设计中,保持架兜孔和滚子接触面较大,摩擦发热增大,造成轴承容易发热;第三,铅黄铜为一种较贵的有色金属,在轴承成本中占用较大比重。
技术实现思路
为了解决上述技术问题,本技术的目的在于提供一种新型的四列圆柱滚子轴承。本技术采用的技术方案为:一种新型四列圆柱滚子轴承,包括一内 ...
【技术保护点】
1.一种新型四列圆柱滚子轴承,包括一内圈、两外圈、一外隔圈、两保持架和四列圆柱滚子,所述外圈位于内圈外,所述外圈上均设有多个油脂孔,所述外隔圈位于两外圈之间,所述保持架由环状的过梁和位于过梁两侧的多个支柱组成,所述相邻两支柱之间形成用于装盛圆柱滚子的兜孔,其特征在于:所述过梁的厚度大于支柱的厚度,且所述过梁的下表面与支柱的下表面相齐平。
【技术特征摘要】
1.一种新型四列圆柱滚子轴承,包括一内圈、两外圈、一外隔圈、两保持架和四列圆柱滚子,所述外圈位于内圈外,所述外圈上均设有多个油脂孔,所述外隔圈位于两外圈之间,所述保持架由环状的过梁和位于过梁两侧的多个支柱组成,所述相邻两支柱之间形成用于装盛圆柱滚子的兜孔,其特征在于:所述过梁的厚...
【专利技术属性】
技术研发人员:郭志刚,赵伟炣,
申请(专利权)人:四川东轴轴承有限公司,
类型:新型
国别省市:四川,51
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