WO2020056824A1 - 一种电机用带防电腐蚀结构的轴承 - Google Patents

一种电机用带防电腐蚀结构的轴承 Download PDF

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Publication number
WO2020056824A1
WO2020056824A1 PCT/CN2018/110725 CN2018110725W WO2020056824A1 WO 2020056824 A1 WO2020056824 A1 WO 2020056824A1 CN 2018110725 W CN2018110725 W CN 2018110725W WO 2020056824 A1 WO2020056824 A1 WO 2020056824A1
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WIPO (PCT)
Prior art keywords
bearing
steel ball
oil storage
arc
dust cover
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PCT/CN2018/110725
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English (en)
French (fr)
Inventor
环宇平
陈波
陈秀荣
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江苏富天江电子电器有限公司
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Priority to JP2019523690A priority Critical patent/JP2021503057A/ja
Publication of WO2020056824A1 publication Critical patent/WO2020056824A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

  • the invention relates to the field of bearings, in particular to a ball ball bearing with an anti-corrosion structure for a motor.
  • a new bearing structure needs to be designed.
  • a low-resistance conductive circuit is constructed inside the motor, which can ensure that the static current passes quickly in the conductive circuit, ensure the balance of the electromotive force in the electrical circuit, and prevent the current from connecting points in the circuit. If a potential difference is formed between the bearing inner ring, steel ball, and outer ring, the occurrence of electric shock can be prevented; to maintain the balance of the electromotive force, the focus is on how to ensure that the bearing clearance (air gap) can be in a good conductive state at any time. The problem.
  • the object of the present invention is to provide a bearing with an anti-corrosion structure for a motor.
  • the structure is simple, and the conductive lubricating grease can always be stored in the oil storage groove, so that the inner ring of the bearing and the outer ring of the bearing form a low-resistance conductive circuit. Voltage static electricity cannot shock the molten steel ball through this gap discharge, effectively preventing the occurrence of electric corrosion; the above technical problems are solved.
  • a bearing with an anti-corrosion structure for a motor including a bearing outer ring, a bearing inner ring, and a steel ball arranged on the bearing outer ring and In the steel ball track formed by the inner ring of the bearing, the upper end face of the outer ring of the bearing and the inner ring of the bearing is provided with an upper dust cover, and the lower end face is provided with a lower dust cover;
  • An arc-shaped concave surface a matching the steel ball is provided circumferentially, and a plurality of oil storage grooves a are provided on the arc-shaped concave surface a.
  • arc-shaped concave surface a Above and below the arc-shaped concave surface a are symmetrically provided for mounting a dust cover,
  • the bayonet b for mounting the upper and lower dust cover is symmetrically arranged above and below the arc-shaped concave surface b; a support frame for positioning steel balls is provided between the bearing outer ring and the bearing inner ring, so that the steel The balls remain evenly distributed in the ball track.
  • the support frame is made of nylon and includes a ring-shaped base matching the steel ball track.
  • the base is evenly provided with a plurality of through holes to locate the position of the steel ball.
  • Matchingly arranged on both sides of the through hole, each steel ball is provided with two fixing pieces to fix the position of the steel ball, and the fixing pieces are arranged in an arc shape matching the steel ball.
  • the upper dust cover has the same structure as the lower dust cover, the inner edge of which is set to be circular and is arranged in the groove of the bayonet b to cooperate with the bayonet b, and the outer edge is arranged in an upward hook shape Cooperate with the groove of the bayonet a and set it as interference fit; the cavity formed between the upper dust cover, the lower dust cover and the steel ball is filled with conductive grease.
  • the number of the oil storage groove a is set to an even number of 2 or more and 8 or less, and the number of the oil storage groove b is equal to the number of the oil storage groove a; the oil storage groove a and the oil storage
  • the grooves b are symmetrically and uniformly arranged with respect to the center of the steel ball, the center of the inner ring of the bearing, and the center of the outer ring of the bearing.
  • the cross sections of the oil storage groove a and the oil storage groove b are set to be rectangular, circular, trapezoidal, or triangular, and the oil storage groove a and the oil storage groove b are filled with conductive lubricating grease.
  • a bearing with an anti-corrosion structure for a motor is provided with an arc-shaped concave surface a, which is matched with a steel ball, at the middle position of the inner circle surface of the outer ring of the bearing.
  • the concave surface a is provided with a plurality of oil storage grooves a; the middle position of the outer surface of the bearing inner ring is provided with an arc-shaped concave surface b matching the steel ball, and the arc-shaped concave surface b is provided with a plurality of oil storage grooves b;
  • the structure of the present invention is simple and easy to use.
  • This structure enables the conductive lubricating grease to be always stored in the oil storage groove when the bearing is running, and it can be automatically filled with grease when a gap occurs between the steel ball and the bearing inner ring and the bearing outer ring.
  • a low-resistance conductive circuit is formed by connecting the inner ring of the bearing and the outer ring of the bearing. High-voltage static electricity cannot discharge the molten steel ball through this gap discharge to effectively prevent the occurrence of electric corrosion.
  • FIG. 1 is a schematic structural diagram of the present invention
  • Figure 2 is a sectional view of Figure 1 of the present invention.
  • FIG. 3 is a partially enlarged view of FIG. 2 of the present invention.
  • FIG. 4 is a schematic structural view of a top view of a support frame of the present invention.
  • a bearing for a motor with an anti-corrosion structure comprising a bearing outer ring 2, a bearing inner ring 1, and a steel ball 3 provided in a ball track formed by the bearing outer ring 2 and the bearing inner ring 1, the bearing
  • the upper end face of the outer ring 2 and the bearing inner ring 1 is provided with an upper dust cover 5 and the lower end face is provided with a lower dust cover 6;
  • the inner circle surface of the bearing outer ring 2 is circumferentially provided with and
  • the steel ball matches the arc-shaped concave surface a7.
  • the arc-shaped concave surface a7 is provided with several oil storage grooves a8.
  • an arc-shaped concave surface b10 matched with a steel ball is provided in the middle of the outer surface of the bearing inner ring 1 in a circumferential direction, and a plurality of oil storage grooves b11 are provided on the arc-shaped concave surface b10.
  • the top and bottom of b10 are symmetrically provided with bayonet mounts b12 for mounting the upper and lower dust caps; a support frame 13 for positioning steel balls is provided between the bearing outer ring 2 and the bearing inner ring 1 to keep the steel balls Evenly distributed in the ball track.
  • the support frame 13 is made of nylon, and includes a ring-shaped base 14 matched with a steel ball track.
  • the base 14 is evenly provided with a plurality of through holes 15 to locate the position of the steel ball.
  • the steel balls are arranged on both sides of the through hole 15 in cooperation.
  • Each steel ball 3 is provided with two fixing pieces 16 to fix the position of the steel balls, and the fixing pieces 16 are arranged in an arc shape matching the steel balls.
  • the upper dust cover 5 has the same structure as the lower dust cover 6.
  • the inner edge is set to be circular and is arranged in the groove of the bayonet b12 to cooperate with the bayonet b.
  • the outer edge is set to have an upward hook shape and the bayonet a9.
  • the cavity formed between the upper dust cover 5 and the lower dust cover 6 and the steel ball 3 is filled with conductive grease; the oil storage groove a8
  • the number is set to an even number of 2 or more and 8 or less.
  • the number of oil storage grooves b11 is equal to the number of oil storage grooves a8.
  • the oil storage grooves a8 and oil storage grooves b11 are relative to the center of the steel ball 3 and in the bearing.
  • the center of the ring 1 and the center of the bearing outer ring 2 are symmetrically and uniformly arranged; the cross section of the oil storage groove a8 and the oil storage groove b11 is set to a moment , Circular, trapezoidal or triangular, and the oil reservoir groove a8 b11 in the trench filled up with an electrically conductive grease.
  • a plurality of oil storage grooves are provided for storing conductive lubricating grease.
  • the inner ring of the bearing drives the steel ball to rotate about the axis to generate centrifugal force, and the grease is thrown to one side of the outer ring of the steel ball track. After being damped by the grease stored in the groove, a deposit is formed, so that the tossed grease is always accumulated on one side of the outer ring of the steel ball track, and the steel ball rotates to bring the accumulated oil back to the oil ring of the inner ring.
  • the groove fills up the surrounding air gap, so that the air gap between the steel ball and the inner and outer bearing rings can always be filled by the conductive grease in the oil storage groove even if the bearing is running for a long time, thereby establishing a curved path.
  • a good low-resistance conductive circuit can be formed between the outer bearing ring and the steel ball, thereby balancing the potential difference to prevent the occurrence of electrical corrosion.
  • the bearings used for the motor operation will be affected by the magnetic force of the rotor, and the motor usually has the presence of a spring wave washer, which causes the bearing to receive a large axial thrust. Therefore, the oil storage groove cannot be set at the upper and lower center positions of the bearing, otherwise the steel ball will be biased to one side of the groove, the axial clearance of the bearing will increase, the wear of the steel ball away from the center of the raceway will cause accelerated wear, and the axial and radial directions of the bearing No size can be guaranteed, and the noise will continue to increase; and the even number of oil storage grooves provided by the present invention are symmetrically and uniformly arranged with respect to the center of the steel ball, the center of the inner ring of the bearing, and the center of the outer ring of the bearing, which ensures the filling of the grease well.
  • the axial thrust of the rear steel ball is uniform, and it is impossible to leave the center of the original steel ball track, to ensure the relative stability of the steel ball when the bearing is running, and at the same time, the oil storage groove continuously provides supplemental lubrication of the conductive grease during the rotation of the steel ball, reducing the Bearing overall noise in decibels.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Motor Or Generator Frames (AREA)
  • Sealing Of Bearings (AREA)

Abstract

一种电机用带防电腐蚀结构的轴承，在轴承外圈（2）的内圆表面中间位置环向设置有与钢球相匹配的弧形凹面a，弧形凹面a上设置有若干个储油沟槽a；在轴承内圈（1）的外圆表面中间位置环向设置有与钢球相匹配的弧形凹面b，弧形凹面b上设置有若干个储油沟槽b；在轴承外圈与轴承内圈之间设置有定位钢球的支承架，使钢球保持均布在钢球轨道中。该轴承运转时导电润滑油脂能始终储满在储油沟槽中，当钢球与轴承内圈、轴承外圈之间出现间隙时能自动填充油脂至饱和状态，从而连通轴承内圈、轴承外圈形成低电阻导电回路，高电压静电不能通过该间隙放电电击熔融钢球，有效防止电腐蚀的产生。

Description

一种电机用带防电腐蚀结构的轴承 技术领域
本发明涉及轴承的领域，尤其涉及一种电机用带防电腐蚀结构的滚珠球轴承。
背景技术
众所周知，非金属外壳的电动机若在高寒干燥的环境中运转，如北欧等地区，会因电机的风叶负载切割摩擦干冷空气形成高电压的静电，该高压静电通过转轴传导至电机两端支撑的轴承；现有技术的滚珠球轴承，通常由轴承内圈轨道、外圈轨道及中间的数个钢球组成轴承主体，填充润滑油脂后用两个防尘盖封盖；轴承运转一段时间后，由于离心力的作用，油脂被钢球和轴承内圈甩向钢球轨道外圈的两侧，导致钢球与轴承内圈和外圈轨道之间出现间隙，产生空气阻隔，形成不了导电回路，电机轴承的内外圈就会存在电位差，引诱轨道和钢球之间空隙放电，产生电位差发生电击钢球现象；使钢球的表面出现局部的熔融和凹凸，形成波状磨损，即电腐蚀现象，最终会导致电机堵转使得终端产品损毁或起火；电机企业为了避免电腐蚀现象的产生过去采用陶瓷球轴承，由于陶瓷球是极佳的绝缘材料，不会被电机熔烧磨损，但陶瓷球轴承的价格高昂，是普通轴承价格的二十倍以上，产品的性价比不能被市场所接受。
因此，需要设计一种新的轴承结构，在电机内部构造一个低电阻的导电回路，能保证静电流在导电回路中快速通过，保证电回路中电动势的平衡，不让电流在回路中各连接点如轴承内圈、钢球、外圈之间形成电位差，就能防止电击现象的产生；而要维持电动势的平衡，重点要解决如何保证轴承游隙(气隙)随时能处于良好的导电状态的问题。
发明内容
本发明目的是提供一种电机用带防电腐蚀结构的轴承，结构简单，导电润滑油脂能始终储满在储油沟槽中，从而连通轴承内圈、轴承外圈形成低电阻导电回路，高电压静电不能通过该间隙放电电击熔融钢球，有效防止电腐蚀的产生；解决了以上技术问题。
为了实现上述技术目的，达到上述的技术要求，本发明所采用的技术方案是：一种电机用带防电腐蚀结构的轴承，包括轴承外圈，轴承内圈，钢球设置在轴承外圈与轴承内圈形成的钢球轨道中，轴承外圈和轴承内圈上端面设置有上防尘盖，下端面设置有下防尘盖；其特征在于：所述的轴承外圈的内圆表面中间位置环向设置有与钢球相匹配的 弧形凹面a,弧形凹面a上设置有若干个储油沟槽a，在弧形凹面a的上方和下方对称设置有用于安装上防尘盖、下防尘盖的卡口a；所述的轴承内圈的外圆表面中间位置环向设置有与钢球相匹配的弧形凹面b，弧形凹面b上设置有若干个储油沟槽b，在弧形凹面b的上方和下方对称设置有用于安装上防尘盖、下防尘盖的卡口b；在轴承外圈与轴承内圈之间设置有定位钢球的支承架，使钢球保持均布在钢球轨道中。
优选的：所述的支承架设置为尼龙材质，包括与钢球轨道相配合的圆环型底座，底座上均匀设置有若干通孔以定位钢球的位置，固定片沿底座设置并与钢球相配合设置在通孔的两侧，每个钢球设置有两个固定片以固定钢球的位置，固定片设置为与钢球相匹配的圆弧状。
优选的：所述的上防尘盖与下防尘盖结构相同，其内边设置为圆形并设置在卡口b的凹槽内与卡口b相配合，外边设置为向上的弯钩状与卡口a的凹槽相配合，并设置为过盈配合；上防尘盖、下防尘盖与钢球之间形成的空腔填充满导电的润滑油脂。
优选的：所述的储油沟槽a的数量设置为大于等于2且小于等于8的偶数，储油沟槽b的数量与储油沟槽a的数量相等；储油沟槽a与储油沟槽b相对于钢球中心、轴承内圈中心、轴承外圈中心对称均匀布置。
优选的：所述的储油沟槽a、储油沟槽b的截面设置为矩形、圆形、梯形或三角形，储油沟槽a和储油沟槽b中填充满导电的润滑油脂。
本发明的有益效果；一种电机用带防电腐蚀结构的轴承，与传统结构相比：轴承外圈的内圆表面中间位置环向设置有与钢球相匹配的弧形凹面a,弧形凹面a上设置有若干个储油沟槽a；轴承内圈的外圆表面中间位置环向设置有与钢球相匹配的弧形凹面b，弧形凹面b上设置有若干个储油沟槽b；本发明结构简单，使用方便，该结构使轴承运转时导电润滑油脂能始终储满在储油沟槽中，当钢球与轴承内圈、轴承外圈之间出现间隙时能自动填充油脂至饱和状态，从而连通轴承内圈、轴承外圈形成低电阻导电回路，高电压静电不能通过该间隙放电电击熔融钢球，有效防止电腐蚀的产生。
附图说明
图1为本发明结构示意图；
图2为本发明图1的剖视图；
图3为本发明图2的局部放大图；
图4为本发明支承架俯视图的结构示意图；
在图中：1.轴承内圈；2.轴承外圈；3.钢球；5.上防尘盖；6.下防尘盖；7.弧形凹 面a；8.储油沟槽a；9.卡扣a；10.弧形凹面b；11.储油沟槽b；12.卡口b；13.支承架；14.底座；15.通孔；16.固定片。
具体实施方式
为了使本发明的发明目的、技术方案及其有益技术效果更加清晰，以下结合附图和具体实施方式，对本发明进行进一步详细说明；
在附图中：一种电机用带防电腐蚀结构的轴承，包括轴承外圈2，轴承内圈1，钢球3设置在轴承外圈2与轴承内圈1形成的钢球轨道中，轴承外圈2和轴承内圈1上端面设置有上防尘盖5，下端面设置有下防尘盖6；其特征在于：所述的轴承外圈2的内圆表面中间位置环向设置有与钢球相匹配的弧形凹面a7,弧形凹面a7上设置有若干个储油沟槽a8，在弧形凹面a7的上方和下方对称设置有用于安装上防尘盖、下防尘盖的卡口a9；所述的轴承内圈1的外圆表面中间位置环向设置有与钢球相匹配的弧形凹面b10，弧形凹面b10上设置有若干个储油沟槽b11，在弧形凹面b10的上方和下方对称设置有用于安装上防尘盖、下防尘盖的卡口b12；在轴承外圈2与轴承内圈1之间设置有定位钢球的支承架13，使钢球保持均布在钢球轨道中。
所述的支承架13设置为尼龙材质，包括与钢球轨道相配合的圆环型底座14，底座14上均匀设置有若干通孔15以定位钢球的位置，固定片16沿底座设置并与钢球相配合设置在通孔15的两侧，每个钢球3设置有两个固定片16以固定钢球的位置，固定片16设置为与钢球相匹配的圆弧状；所述的上防尘盖5与下防尘盖6结构相同，其内边设置为圆形并设置在卡口b12的凹槽内与卡口b相配合，外边设置为向上的弯钩状与卡口a9的凹槽相配合，并设置为过盈配合；上防尘盖5、下防尘盖6与钢球3之间形成的空腔填充满导电的润滑油脂；所述的储油沟槽a8的数量设置为大于等于2且小于等于8的偶数，储油沟槽b11的数量与储油沟槽a8的数量相等；储油沟槽a8与储油沟槽b11相对于钢球3中心、轴承内圈1中心、轴承外圈2中心对称均匀布置；所述的储油沟槽a8、储油沟槽b11的截面设置为矩形、圆形、梯形或三角形，储油沟槽a8和储油沟槽b11中填充满导电的润滑油脂。
本发明的具体实施：通过采用本方案，设置的多道储油沟槽用于储存导电润滑油脂，轴承内圈带动钢球绕轴心旋转产生离心力，油脂被甩向钢球轨道外圈一侧，在受到储存在沟槽中的油脂阻尼后形成堆积，这样保证被抛甩的油脂始终堆积在钢球轨道外圈一侧，而钢球自身旋转把堆积的油脂又带回内圈储油沟槽填满周边气隙，如此循环往复，即使轴承长期运转钢球与内、外轴承圈的气隙也能始终被储油沟槽内的导电油脂填补，从而 建立起一条弯曲的通路，内、外轴承圈和钢球之间就能形成良好的低电阻导电回路，从而平衡电位差防止电腐蚀现象的产生。
用于电机运转的轴承都会受到转子磁力的作用，且电机通常都会有弹簧波形垫圈的存在，使得轴承受到很大的上下轴向推力。因此轴承上、下中心位置不能设置储油沟槽，否则会造成钢球偏向沟槽的一边，轴承轴向游隙增大，钢球脱离滚道中心导致磨损加快，轴承的轴向、径向尺寸都不能保证，噪音会持续增高；而本发明设置的偶数数量的储油沟槽相对于钢球中心、轴承内圈中心、轴承外圈中心对称均匀布置，就很好的保证了填充润滑油脂后钢球受到的轴向推力均匀，不可能脱离原钢球轨道的中心，保证轴承运转时钢球的相对稳定，同时储油沟槽不断提供钢球旋转过程中导电油脂的补充润滑，降低了轴承的整体噪音分贝。
上述实施例仅仅是为清楚地说明本发明所作的描述，而并非对实施方式的限定，对于所属领域的技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无需也无法对所有的实施方式予以穷举，而由此所引申出的显而易见的变化或变动仍处于本发明的保护范围之中。

Claims (5)

  1. 一种电机用带防电腐蚀结构的轴承，包括轴承外圈(2)，轴承内圈(1)，钢球(3)设置在轴承外圈(2)与轴承内圈(1)形成的钢球轨道中，轴承外圈(2)和轴承内圈(1)上端面设置有上防尘盖(5)，下端面设置有下防尘盖(6)；其特征在于：所述的轴承外圈(2)的内圆表面中间位置环向设置有与钢球相匹配的弧形凹面a(7),弧形凹面a(7)上设置有若干个储油沟槽a(8)，在弧形凹面a(7)的上方和下方对称设置有用于安装上防尘盖、下防尘盖的卡口a(9)；所述的轴承内圈(1)的外圆表面中间位置环向设置有与钢球相匹配的弧形凹面b(10)，弧形凹面b(10)上设置有若干个储油沟槽b(11)，在弧形凹面b(10)的上方和下方对称设置有用于安装上防尘盖、下防尘盖的卡口b(12)；在轴承外圈(2)与轴承内圈(1)之间设置有定位钢球的支承架(13)，使钢球保持均布在钢球轨道中。
  2. 根据权利要求1所述的一种电机用带防电腐蚀结构的轴承，其特征在于：所述的支承架(13)设置为尼龙材质，包括与钢球轨道相配合的圆环型底座(14)，底座(14)上均匀设置有若干通孔(15)以定位钢球的位置，固定片(16)沿底座设置并与钢球相配合设置在通孔(15)的两侧，每个钢球(3)设置有两个固定片(16)以固定钢球的位置，固定片(16)设置为与钢球相匹配的圆弧状。
  3. 根据权利要求1所述的一种电机用带防电腐蚀结构的轴承，其特征在于：所述的上防尘盖(5)与下防尘盖(6)结构相同，其内边设置为圆形并设置在卡口b(12)的凹槽内与卡口b相配合，外边设置为向上的弯钩状与卡口a(9)的凹槽相配合，并设置为过盈配合；上防尘盖(5)、下防尘盖(6)与钢球(3)之间形成的空腔填充满导电的润滑油脂。
  4. 根据权利要求1所述的一种电机用带防电腐蚀结构的轴承，其特征在于：所述的储油沟槽a(8)的数量设置为大于等于2且小于等于8的偶数，储油沟槽b(11)的数量与储油沟槽a(8)的数量相等；储油沟槽a(8)与储油沟槽b(11)相对于钢球(3)中心、轴承内圈(1)中心、轴承外圈(2)中心对称均匀布置。
  5. 根据权利要求1所述的一种电机用带防电腐蚀结构的轴承，其特征在于：所述的储油沟槽a(8)、储油沟槽b(11)的截面设置为矩形、圆形、梯形或三角形，储油沟槽a(8)和储油沟槽b(11)中填充满导电的润滑油脂。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111593193A (zh) * 2020-06-28 2020-08-28 洛阳明臻轴承钢球有限公司 一种用于钢球回火的电阻炉操作方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116877586B (zh) * 2023-08-03 2023-12-15 苏州铁近机电科技股份有限公司 一种防电腐蚀轴承

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012146485A1 (de) * 2011-04-29 2012-11-01 Schaeffler Technologies AG & Co. KG Lager mit korrosionsgeschütztem lagerteil
CN204805344U (zh) * 2015-06-05 2015-11-25 浙江八环轴承有限公司 密封轴承用带通气系统的密封圈
CN105673700A (zh) * 2016-04-20 2016-06-15 哈尔滨理工大学 一种全表面接触球轴承
CN106763213A (zh) * 2017-01-04 2017-05-31 宁波银球小型轴承有限公司 一种高润滑式洗衣机高速电机轴承
CN107269689A (zh) * 2017-07-31 2017-10-20 浙江天马轴承有限公司 一种适用于电梯碟形曳引机的组合轴承
CN107605954A (zh) * 2017-09-27 2018-01-19 镇江金利源轴承有限公司 一种可添加油脂的深沟球轴承

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001082496A (ja) * 1999-09-17 2001-03-27 Nsk Ltd 転がり軸受
JP2003049848A (ja) * 2001-08-06 2003-02-21 Nsk Ltd プーリ支持用玉軸受
JP2005308067A (ja) * 2004-04-20 2005-11-04 Nsk Ltd 転がり軸受
JP2014101922A (ja) * 2012-11-19 2014-06-05 Seiko Instruments Inc 保持器、転がり軸受、軸受装置および情報記録再生装置
JP2016200243A (ja) * 2015-04-13 2016-12-01 株式会社ジェイテクト 玉軸受

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012146485A1 (de) * 2011-04-29 2012-11-01 Schaeffler Technologies AG & Co. KG Lager mit korrosionsgeschütztem lagerteil
CN204805344U (zh) * 2015-06-05 2015-11-25 浙江八环轴承有限公司 密封轴承用带通气系统的密封圈
CN105673700A (zh) * 2016-04-20 2016-06-15 哈尔滨理工大学 一种全表面接触球轴承
CN106763213A (zh) * 2017-01-04 2017-05-31 宁波银球小型轴承有限公司 一种高润滑式洗衣机高速电机轴承
CN107269689A (zh) * 2017-07-31 2017-10-20 浙江天马轴承有限公司 一种适用于电梯碟形曳引机的组合轴承
CN107605954A (zh) * 2017-09-27 2018-01-19 镇江金利源轴承有限公司 一种可添加油脂的深沟球轴承

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111593193A (zh) * 2020-06-28 2020-08-28 洛阳明臻轴承钢球有限公司 一种用于钢球回火的电阻炉操作方法

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