WO2010108394A1 - 一种含油滑动轴承系统及其应用的电机 - Google Patents

一种含油滑动轴承系统及其应用的电机 Download PDF

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Publication number
WO2010108394A1
WO2010108394A1 PCT/CN2010/070297 CN2010070297W WO2010108394A1 WO 2010108394 A1 WO2010108394 A1 WO 2010108394A1 CN 2010070297 W CN2010070297 W CN 2010070297W WO 2010108394 A1 WO2010108394 A1 WO 2010108394A1
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WO
WIPO (PCT)
Prior art keywords
sliding bearing
oil
end surface
raft
cymbal
Prior art date
Application number
PCT/CN2010/070297
Other languages
English (en)
French (fr)
Inventor
姜新正
Original Assignee
中山大洋电机制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中山大洋电机制造有限公司 filed Critical 中山大洋电机制造有限公司
Priority to MX2011009993A priority Critical patent/MX2011009993A/es
Priority to CA2756223A priority patent/CA2756223C/en
Publication of WO2010108394A1 publication Critical patent/WO2010108394A1/zh
Priority to US13/244,958 priority patent/US8449192B2/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00Sliding-contact bearings for exclusively rotary movement
    • F16C17/02Sliding-contact bearings for exclusively rotary movement for radial load only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings

Definitions

  • Oil-containing sliding bearing system and motor thereof are Oil-containing sliding bearing system and motor thereof
  • the utility model relates to an oil-containing sliding shaft 7 system and an electric motor thereof.
  • Rolling bearings are used in a wide range of applications, including plain bearings and rolling bearings.
  • the structure of rolling bearings is generally composed of inner bore, outer bore, rolling elements and cages.
  • Rolling bearings have the following advantages: 1. Rolling bearings have a lower friction coefficient than plain bearings and high rotational efficiency. The friction coefficient of the plain bearing is 0. 08-0. 12 , and the friction coefficient of the rolling bearing is only 0. 001-0. 005 ; 2.
  • the rolling bearing has been standardized, serialized and generalized, suitable for mass production and supply. It is very convenient to use and maintain; 3.
  • Rolling bearings are made of bearing steel and heat treated. Therefore, rolling bearings not only have high mechanical properties and long service life, but also save the expensive expensive non-ferrous metals used in the manufacture of sliding bearings. 4.
  • the internal clearance of the rolling bearing is small, and the machining accuracy of each part is high, so the running speed is high.
  • the rigidity of the bearing can be increased by a preloading method. This is very important for precision machinery; 5 Some rolling bearings can withstand both radial and axial loads, so that the structure of the bearing can be compressed; 6. Because the rolling bearing has high transmission efficiency and less heat, it can Reduce the consumption of lubricating oil, lubrication and maintenance is more convenient; 7. Rolling bearings can be easily applied to the shaft in any orientation of the space.
  • the disadvantages are: 1. The ability of the rolling bearing to withstand loads is much smaller than that of a plain bearing of the same volume. Therefore, the radial dimension of the rolling bearing is large.
  • sliding bearings are often used.
  • Rolling bearings have large vibration and noise, especially in the later stage of use. Therefore, in the case where the precision is required to be high and vibration is not allowed, the rolling bearing is difficult to perform, and the effect of using the sliding bearing is generally better.
  • the sliding bearing (1) is an integral transmission system composed of an elastic pad (3), a sealing pressure (4) and an end cover (2), and its structure is as shown in FIG. Sliding bearing system, complex structure, troublesome installation, high manufacturing cost, difficult maintenance, not standard parts, general parts, friction and heat are more severe, and the lubrication requirements are higher, and the lubrication requirements are higher.
  • plain bearing system consists of plain bearings (1), seals (2) and grease (3)
  • the composition, its structure is shown in Figure 2. Due to the lack of the oil supply structure and oil recovery structure of the sliding bearing, it is currently in the exploration stage and has not been promoted.
  • One object of the present invention is to provide an oil-containing sliding bearing system which is simple in structure, convenient to install, convenient to maintain, and costly to manufacture, has a wider application range, and greatly improves the standardization degree.
  • the utility model is realized by the following technical solutions.
  • An oil-containing sliding bearing system comprising a sliding bearing, wherein an oil storage groove is arranged in the sliding bearing, lubricating oil is placed inside the oil storage groove, and a casing is arranged outside the sliding bearing, and the casing extends a distance from the front end surface of the sliding bearing, and is at the top end
  • the inner bend forms an oil return barb portion, and a retaining sill is arranged on the front end surface of the shaft, and an oil return hole is formed between the dam and the sliding bearing, and the oil return hole communicates with the oil storage tank.
  • the sliding bearing described above includes an outer cymbal and an inner cymbal, and an oil sump is formed between the outer cymbal and the inner cymbal, and the outer cymbal and the inner cymbal are connected by the rib.
  • the housing described above forms a front bent portion at a position in contact with the front end surface of the sliding shaft, and the rear end surface of the housing and the sliding bearing body forms a rear bent portion, thereby realizing the positioning of the sliding bearing, which is strong in integrity and is not easy to loosen.
  • the inner crucible described above is disposed in the outer crucible, and the inner crucible has a short axial dimension, and both ends are retracted into the outer crucible to form a gap for the oil supply.
  • the inner crucible is sintered, and many tiny oil leakage gaps are formed therein to form a passage for oil supply.
  • the damper described above is pressed by the front bent portion, and the structure is single.
  • the oil-impregnated sliding bearing system of the utility model has the following advantages: 1) a housing is arranged on the outer surface of the sliding bearing, and the housing protrudes from the end surface of the sliding bearing for a certain distance, and is bent at the top end to form an oil return barb portion.
  • the oil storage tank is arranged inside the sliding bearing to form a complete oil storage and recovery structure, which can work normally for a long time, and the maintenance of the cylinder is convenient; 2)
  • the structure of the cylinder is simple, the manufacturing cost is low, the standardization generalization degree is greatly improved, and the production can be mass-produced;
  • the sliding bearing system does not depend on the end cover and exists independently. It is easy to install and use.
  • the utility model can be used instead of the rolling bearing to solve the problem that the rolling bearing has small impact load and large noise, so the scope of use Further expansion; 5) A retaining ring is arranged on the front end surface of the sliding shaft ⁇ , and an oil return hole is formed between the retaining ring and the sliding shaft 7, and the oil return hole communicates with the oil storage tank, and the lubricating oil recovered from the oil return barb portion flows back to the oil storage tank.
  • the structural cylinder is single; 6)
  • the inner bore of the sliding bearing forms an oil supply gap, and the lubricating oil of the oil storage tank can be supplied with oil through the oil supply gap.
  • Another object of the present invention is to provide a motor, which is provided with the above oil-containing sliding bearing system, which can not only design the structural design of the end cap, but also make the bearing system structure simple, easy to install and use, and convenient to maintain. manufacturing cost.
  • a motor comprising an end cover, a rotating shaft and an oil-impregnated sliding bearing, wherein a bearing seat is arranged on the end cover, the oil-impregnated sliding bearing is nested in the bearing seat, and the oil-containing sliding bearing comprises a sliding bearing, and the lubricating oil is placed in the oil storage groove of the sliding bearing And a housing that is sleeved outside the sliding bearing, the housing protrudes from the end surface of the sliding bearing and is bent at the top end to form an oil return barb portion, and the front end surface of the sliding shaft is provided with a damper, and the oil is formed between the dam and the sliding bearing The hole and the oil return hole are connected with the oil storage groove.
  • the sliding bearing comprises an outer raft and an inner raft, and an oil storage groove is formed between the outer raft and the inner raft, and the outer raft and the inner raft are connected by the rib, and the rotating sleeve is sleeved on the inner raft.
  • the inner crucible described above is disposed in the outer crucible, and the inner crucible has a short axial dimension and is retracted into the outer crucible to form a gap for the oil supply.
  • the above-mentioned shaft sleeve is sleeved on the rotating shaft, and the sleeve is located in the casing, and is between the oil return barb portion and the dam, and a sealing ⁇ is arranged between the sliding bearing and the end cover.
  • the motor of the utility model has the following advantages: 1)
  • the oil-containing sliding bearing of the utility model can be used to design the end cap to reduce the cost; 2) using the oil-impregnated sliding bearing of the utility model, working life Long, usually does not need to maintain the bearing system, easy to use; 3)
  • the oil-impregnated sliding bearing of the utility model can be directly installed in the bearing seat as a standard part, and the installation is convenient, and the production efficiency is improved.
  • Figure 1 is a first structural schematic view of a conventional sliding bearing system
  • Figure 2 is a second structural schematic view of a conventional sliding bearing system
  • Figure 3 is a cross-sectional view showing the structure of the oil-impregnated sliding bearing system of the present invention
  • Figure 4 is a cross-sectional view taken along line AA of Figure 3;
  • Figure 5 is a cross-sectional view taken along line B-B of Figure 3;
  • Figure 6 is a schematic view of a motor to which the oil-impregnated sliding bearing system of the present invention is applied.
  • an oil-containing sliding shaft system includes a sliding bearing 1, an oil reservoir 2 is disposed in the sliding bearing 1, and a lubricating oil 3 is placed in the oil storage tank 2, in the sliding bearing
  • the outer casing of the outer casing 1 is provided with a casing 4, and the casing 4 extends beyond the front end surface of the sliding bearing 1 and is bent inside the top end to form an oil return barb portion 5, and a front end surface of the sliding shaft 7
  • An oil return hole 10 is formed between the 9 and the sliding shaft 7
  • the sliding bearing 1 includes an outer cymbal 6 and an inner cymbal 7, and an oil sump 2 is formed between the outer cymbal 6 and the inner cymbal 7, the outer cymbal 6 and the inner cymbal 7 are connected by the rib 8, and the rib 8 is composed of three or more weeks. It is evenly distributed.
  • the front portion of the casing 4 in contact with the front end surface of the sliding bearing 1 forms a front bent portion 11, and the rear end surface of the casing 4 and the sliding bearing 1 forms a rear bent portion 12, thereby realizing the positioning of the sliding bearing 1.
  • the inner bore is disposed in the outer bore 6, and the inner bore 7 has a short axial dimension and is retracted into the outer bore 6 to form a gap 15 for oil supply. Inside the inner raft 7, a lot of tiny oil leakage gaps are formed to form a passage for oil supply. The dam 9 is pressed by the front bent portion 11.
  • a motor includes an end cover 16, a rotating shaft 17, and an oil-impregnated sliding bearing.
  • a bearing seat 14 is disposed on the end cover 16, and the oil-impregnated sliding bearing is nested in the bearing housing 14.
  • the oil-impregnated sliding bearing includes a sliding bearing 1, a lubricating oil 3 placed inside the oil sump 2 of the sliding bearing 1, and a casing 4 fitted on the outside of the sliding bearing 1, the casing 4 extending a distance from the end surface of the sliding bearing 1, and The top end is bent to form the oil return barb portion 5, and the front end surface 13 of the sliding shaft is mounted with a damper 9, and the oil return hole 10 is formed between the damper 9 and the sliding bearing 1, and the oil return hole 10 communicates with the oil sump 2 to slide
  • 1 includes an outer cymbal 6 and an inner cymbal 7, and an oil sump 2 is formed between the outer cymbal 6 and the inner cymbal 7, and the outer cymbal 6 and the inner cymbal 7 are connected by the rib 8, and the rotating shaft 17 is sleeved on the inner cymbal 7.
  • a sleeve 13 is sleeved on the shaft 17, and the sleeve 13 is located in the housing 4 and is located between the oil return barb portion 5 and the dam 9 and is axially positioned by the axial damper 18.
  • the inner bore 7 is disposed in the outer bore 6, and the inner bore 7 has a short axial dimension and is retracted into the outer bore 6 to form a notch 15 for oil supply.
  • a sealing jaw 19 is provided between the sliding bearing 1 and the end cover 16 to form a retaining oil and back The function of oil and oil storage.
  • the working principle of this operation is as follows: During the running of the motor, the rotating shaft rotates at a high speed, and lubricating oil is placed in the oil storage tank 2 to flow to the inner wall of the inner casing 7, and part of the lubricating oil overflows from the front end of the sliding bearing 1 and is sucked into the casing 4
  • the inner wall flows along the inner wall to the oil return barb portion 5, and the oil return barb portion 5 returns the overflowed lubricating oil to the damper 9, and the oil return hole 10 is formed between the dam 9 and the sliding bearing 1
  • the oil hole 10 is in communication with the oil storage tank 2, so the overflowed lubricating oil flows back to the oil storage tank 2.
  • the lubricating oil is supplied from the notch 15 or the inner gap of the inner crucible, thereby forming a complete oil recovery.
  • the structure can work normally for a long time, the maintenance of the cylinder is convenient, the structure is simple, the manufacturing cost is low, the standardization generalization degree is greatly improved, and the production can be mass-produced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Power Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Motor Or Generator Frames (AREA)

Description

一种含油滑动轴承系统及其应用的电机
技术领域:
本实用新型涉及一种含油滑动轴 7 系统及其应用的电机。
背景技术:
轴承使用范围非常广泛, 包括滑动轴承和滚动轴承, 滚动轴承的结构一 般由内圏、 外圏、 滚动体和保持架组成, 滚动轴承具有如下优点: 1.滚动 轴承的摩擦系数比滑动轴承小, 转动效率高。 一般滑动轴承的摩擦系数为 0. 08-0. 12 , 而滚动轴承的摩擦系数仅为 0. 001-0. 005 ; 2.滚动轴承已实现标 准化、 系列化、 通用化, 适于大批量生产和供应, 使用和维护十分方便; 3. 滚动轴承用轴承钢制造, 并经过热处理, 因此, 滚动轴承不仅具有较高的机 械性能和较长的使用寿命, 而且可以节省制造滑动轴承所用的价格较为昂贵 的有色金属; 4.滚动轴承内部间隙很小, 各零件的加工精度较高, 因此, 运 转速度较高。 同时, 可以通过预加负荷的方法使轴承的刚性增加。 这对于精 密机械是非常重要的; 5 某些滚动轴承可同时承受径向负荷和轴向负荷, 因 此, 可以筒化轴承支座的结构; 6.由于滚动轴承传动效率高, 发热量少, 因 此, 可以减少润滑油的消耗, 润滑维护较为省; 7.滚动轴承可以方便地应用 于空间任何方位的轴上。 缺点是: 1.滚动轴承承受负荷的能力比同样体积的 滑动轴承小得多, 因此, 滚动轴承的径向尺寸大。 所以, 在承受大负荷的场 合和要求径向尺寸小、 结构要求紧凑的场合, 多采用滑动轴承; 2.滚动轴承 振动和噪声较大, 特别是在使用后期尤为显著。 因此, 对精密度要求很高、 又不许有振动的场合, 滚动轴承难于胜任, 一般选用滑动轴承的效果更佳。
现有技术中, 滑动轴承(1 )是通过弹性垫圏 (3 )、 密封压冒 (4 )与端 盖(2 )组成整体式传动系统, 其结构如图 1所示, 这种整体式的滑动轴承系 统, 结构复杂, 安装麻烦, 制造成本高, 维护困难, 并非标准件、 通用件, 摩擦发热比较厉害, 并且对润滑要求较高, 并且对润滑要求较高。
另一种滑动轴承系统是由滑动轴承(1 )、 密封圏 (2 )和润滑油脂 (3 ) 组成, 其结构见图 2所示, 由于缺少滑动轴承应有的供油结构和储油回收结 构, 目前处于探索阶段, 没有进行推广。
实用新型内容 :
本实用新型的一个目的是提供一种含油滑动轴承系统, 它结构筒单、 安 装使用方便, 维护方便、 制造成本, 应用范围更广, 标准化通用化程度大大 提1¾。
本实用新型是通过下述技术方案予以实现的。
一种含油滑动轴承系统, 包括滑动轴承, 滑动轴承中设置储油槽, 储油 槽里面放置润滑油, 在滑动轴承的外面套装有壳体, 壳体伸出滑动轴承的前 端面一段距离, 并在顶端内弯形成回油倒钩部, 轴^的前端面上安装有挡圏, 挡圏与滑动轴承之间形成回油孔, 回油孔与储油槽连通。
上述所述的滑动轴承包括外圏和内圏, 外圏和内圏之间形成储油槽, 外圏 和内圏通过筋条连接。
上述所述的壳体与滑动轴^前端面接触处形成前折弯部, 壳体与滑动轴 承的后端面形成后折弯部, 从而实现对滑动轴承的定位, 整体性强, 不易松 脱。
上述所述的内圏设置于外圏内, 内圏轴向尺寸较短, 两端缩入外圏内, 形 成供油的缺口。
内圏是烧结而成, 里面形成许多微小的渗油间隙, 形成供油的通道。 上述所述的挡圏由前折弯部压住, 结构筒单。
本实用新型含油滑动轴承系统与现有技术相比具有如下优点: 1 )在滑动 轴承的外面套装有壳体, 壳体伸出滑动轴承端面一段距离, 并在顶端内弯形 成回油倒钩部, 滑动轴承里面设置储油槽, 形成完整的储油回收结构, 可以 长时间正常工作, 维护筒单方便; 2 )结构筒单, 制造成本低, 标准化通用化 程度大大提高, 可以大规模生产; 3 )滑动轴承系统不依赖端盖而独立存在, 使用安装方便; 4 )在某些场合, 可以用本实用新型代替滚动轴承, 解决滚动 轴承的承受沖击荷载的能力小、噪音大的问题, 因此使用范围进一步扩大; 5 ) 滑动轴^^的前端面上安装有挡圏, 挡圏与滑动轴 7 之间形成回油孔, 回油孔 与储油槽连通, 从回油倒钩部回收的润滑油流回到储油槽, 结构筒单; 6 )滑 动轴承的内圏形成供油缺口, 储油槽的润滑油可经过供油缺口供油。
本实用新型的另一个目的是提供一种电机, 该电机上设置上述的含油滑 动轴承系统, 既可以筒化端盖的结构设计, 又可以使轴承系统结构筒单、 安 装使用方便, 维护方便、 制造成本。
本实用新型是通过如下技术方案实现的:
一种电机, 包括端盖、 转轴和含油滑动轴承, 在端盖上设置轴承座, 含 油滑动轴承嵌套在轴承座里, 含油滑动轴承包括包括滑动轴承、 在滑动轴承 的储油槽里面放置润滑油和套装在滑动轴承外面的壳体, 壳体伸出滑动轴承 端面并在顶端内弯形成回油倒钩部, 滑动轴 的前端面上安装有挡圏, 挡圏 与滑动轴承之间形成回油孔, 回油孔与储油槽连通, 滑动轴承包括外圏和内 圏, 外圏和内圏之间形成储油槽, 外圏和内圏通过筋条连接, 转轴套在内圏 上。
上述所述的内圏设置于外圏内, 内圏轴向尺寸较短, 并缩入外圏内, 形 成供油的缺口。
上述所述的在转轴上套有轴套, 轴套位于壳体内, 并处于回油倒钩部与 挡圏之间, 在滑动轴承与端盖之间设置密封圏。
本实用新型的电机与现有技术相比具有如下优点: 1 )采用本实用新型的 含油滑动轴承, 可以筒化端盖的设计, 降低成本; 2 )采用本实用新型的含油 滑动轴承, 工作寿命长, 平时无须对轴承系统维护保养, 使用方便; 3 )本实 用新型的含油滑动轴承作为标准件, 可以直接安装在轴承座里面, 安装方便 筒单, 提高生产效率。
附图说明:
图 1是传统的滑动轴承系统的第一种结构示意图;
图 2是传统的滑动轴承系统的第二种结构示意图;
图 3是本实用新型的含油滑动轴承系统结构剖视图; 图 4是图 3的 A-A剖视图;
图 5是图 3的 B-B剖视图;
图 6是应用本实用新型含油滑动轴承系统的电机示意图。
具体实施方式:
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。 实施例 1: 如图 3、 图 4和图 5所示, 一种含油滑动轴^系统, 包括滑 动轴承 1, 滑动轴承 1中设置储油槽 2, 储油槽 2里面放置润滑油 3, 在滑动 轴承 1的外面套装有壳体 4,壳体 4伸出滑动轴承 1的前端面并在顶端内弯形 成回油倒钩部 5, 滑动轴 7| 1的前端面上安装有挡圏 9, 挡圏 9与滑动轴 7| 1 之间形成回油孔 10, 回油孔 10与储油槽 2连通。 滑动轴承 1包括外圏 6和内 圏 7, 外圏 6和内圏 7之间形成储油槽 2, 外圏 6和内圏 7通过筋条 8连接, 筋条 8由三个或者三个以上周向均匀分布而成。 壳体 4与滑动轴承 1前端面 接触处形成前折弯部 11, 壳体 4与滑动轴承 1的后端面形成后折弯部 12, 从 而实现对滑动轴承 1的定位。 内圏 Ί设置于外圏 6内, 内圏 7轴向尺寸较短, 并缩入外圏 6内, 形成供油的缺口 15。 内圏 7里面形成许多微小的渗油间隙, 形成供油的通道。 挡圏 9由前折弯部 11压住。
如图 3、 图 4、 图 5和图 6所示, 一种电机, 包括端盖 16、 转轴 17和含 油滑动轴承, 在端盖 16上设置轴承座 14,含油滑动轴承嵌套在轴承座 14里, 含油滑动轴承包括包括滑动轴承 1、在滑动轴承 1的储油槽 2里面放置润滑油 3和套装在滑动轴承 1外面的壳体 4, 壳体 4伸出滑动轴承 1端面一段距离, 并在顶端内弯形成回油倒钩部 5, 滑动轴 的前端面 13上安装有挡圏 9, 挡圏 9与滑动轴承 1之间形成回油孔 10, 回油孔 10与储油槽 2连通, 滑动轴 7| 1包括外圏 6和内圏 7, 外圏 6和内圏 7之间形成储油槽 2, 外圏 6和内圏 7通过筋条 8连接, 转轴 17套在内圏 7上。 在转轴 17上套有轴套 13, 轴套 13位于壳体 4内,并处于回油倒钩部 5与挡圏 9之间并由轴向挡圏 18轴向定 位。 内圏 7设置于外圏 6内, 内圏 7轴向尺寸较短, 并缩入外圏 6内, 形成 供油的缺口 15。 在滑动轴承 1与端盖 16之间设置密封圏 19, 形成挡油、 回 油和储油的功能。
本使用的工作原理是: 在电机运转过程中, 转轴高速旋转, 储油槽 2里 面放置润滑油流到内圏 7的内壁, 部分润滑油从滑动轴承 1前端轴向溢出, 被甩到壳体 4的内壁, 并沿内壁流到回油倒钩部 5 , 回油倒钩部 5将溢出的润 滑油送回到挡圏 9 , 挡圏 9与滑动轴承 1之间形成回油孔 1 0 , 回油孔 1 0与储 油槽 2连通, 所以溢出的润滑油流回储油槽 2 , 另一方面, 润滑油从缺口 15 或者内圏内部微小间隙供油, 这样一来, 形成一个完整的储油回收结构, 可 以长时间正常工作, 维护筒单方便, 结构筒单, 制造成本低, 标准化通用化 程度大大提高, 可以大规模生产。
上述实施例为本实用新型的较佳实施方式, 但本实用新型的实施方式不 限于此, 其他任何未背离本实用新型的精神实质与原理下所作的改变、 修饰、 替代、 组合、 筒化, 均为等效的置换方式, 都包含在本实用新型的保护范围 之内。

Claims

权 利 要 求
1、 一种含油滑动轴承系统, 包括滑动轴承(1 ) , 滑动轴承(1 ) 中设置 储油槽( 2 ), 储油槽( 2 )里面放置润滑油( 3 ), 其特征在于: 在滑动轴承( 1 ) 的外面套装有壳体(4), 壳体(4)伸出滑动轴承(1 ) 的前端面并在顶端内 弯形成回油倒钩部( 5 ), 滑动轴承( 1 )的前端面上安装有挡圏( 9 ), 挡圏( 9 ) 与滑动轴承 ( 1 )之间形成回油孔 ( 10 ), 回油孔 ( 10 )与储油槽( 2 )连通。
2、 根据权利要求 1所述的一种含油滑动轴承系统, 其特征在于: 滑动轴 承( 1 ) 包括外圏 ( 6 )和内圏 ( 7 ), 外圏 ( 6 )和内圏 ( 7 )之间形成储油槽
(2), 外圏 ( 6 )和内圏 ( 7 )通过筋条( 8 )连接。
3、 根据权利要求 1或 2所述的一种含油滑动轴承系统, 其特征在于: 壳 体( 4 ) 与滑动轴承( 1 )前端面接触处形成前折弯部 ( 11 ), 壳体( 4 ) 与滑 动轴承( 1 )的后端面形成后折弯部( 12 ), 从而实现对滑动轴承( 1 )的定位。
4、 根据权利要求 1或 2所述的一种含油滑动轴承系统, 其特征在于: 内 圏 (7)设置于外圏 (6) 内, 内圏 (7)轴向尺寸较短, 并缩入外圏 (6) 内, 形成供油的缺口 (15)。
5、 根据权利要求 4所述的一种含油滑动轴承系统,其特征在于: 内圏( 7 ) 里面形成许多 小的渗油间隙, 形成供油的通道。
6、 根据权利要求 1或 2所述的一种含油滑动轴承系统, 其特征在于: 挡 圏 (9) 由前折弯部 (11 )压住。
7、 一种电机, 包括端盖( 16 )、 转轴( 17 )和含油滑动轴承, 在端盖( 16 ) 上设置轴承座(14), 含油滑动轴承嵌套在轴承座(14)里, 其特征在于: 含 油滑动轴承包括包括滑动轴承( 1;)、 在滑动轴承( 1 ) 的储油槽( 2 )里面放 置润滑油 ( 3 )和套装在滑动轴承( 1 )外面的壳体( 4 ), 壳体( 4 )伸出滑动 轴承( 1 )端面一段距离, 并在顶端内弯形成回油倒钩部 ( 5 ), 滑动轴承( 1 ) 的前端面 (13)上安装有挡圏 (9), 挡圏 (9 )与滑动轴承(1 )之间形成回 油孔( 10 ), 回油孔( 10 )与储油槽( 2 )连通, 滑动轴承( 1 ) 包括外圏 ( 6 ) 和内圏 (7), 外圏 (6)和内圏 (7)之间形成储油槽(2), 外圏 (6)和内圏 ( 7 )通过筋条( 8 )连接, 转轴( 17 )套在内圏 ( 7 )上。
8、 根据权利要求 7所述的一种电机, 其特征在于: 在转轴 (17)上套有 轴套(13), 轴套(13)位于壳体(4)内, 并处于回油倒钩部(5)与挡圏(9) 之间, 在滑动轴承( 1 )与端盖( 16 )之间设置密封圏 ( 19 )。
9、 根据权利要求 7或 8所述的一种电机, 其特征在于: 内圏 (7)设置于 外圏 (6) 内, 内圏 (7)轴向尺寸较短, 并缩入外圏 (6) 内, 形成供油的缺 口 (15)。
PCT/CN2010/070297 2009-03-25 2010-01-21 一种含油滑动轴承系统及其应用的电机 WO2010108394A1 (zh)

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