[go: up one dir, main page]

WO2019072050A1 - Structure à double palier pour moteur ayant un système à double lubrification - Google Patents

Structure à double palier pour moteur ayant un système à double lubrification Download PDF

Info

Publication number
WO2019072050A1
WO2019072050A1 PCT/CN2018/103859 CN2018103859W WO2019072050A1 WO 2019072050 A1 WO2019072050 A1 WO 2019072050A1 CN 2018103859 W CN2018103859 W CN 2018103859W WO 2019072050 A1 WO2019072050 A1 WO 2019072050A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
grease
chamber
dual
outer bearing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/103859
Other languages
English (en)
Chinese (zh)
Inventor
邓方林
王建良
龙英睿
李进泽
车三宏
龚天明
谭亮
陈国旗
于亮
杨晔
仇超武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu CRRC Electric Co Ltd
Original Assignee
Jiangsu CRRC Electric Co Ltd
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 Jiangsu CRRC Electric Co Ltd filed Critical Jiangsu CRRC Electric Co Ltd
Publication of WO2019072050A1 publication Critical patent/WO2019072050A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • 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
    • F16N—LUBRICATING
    • F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
    • F16N31/02—Oil catchers; Oil wipers

Definitions

  • the invention belongs to the field of electric machines, and more particularly relates to a double bearing structure for a motor with a dual lubrication system.
  • One end adopts "deep groove ball bearing + cylindrical roller bearing”, and the other end adopts the structure of cylindrical roller bearing, which is a common bearing arrangement in the motor field.
  • Cylindrical roller bearings are used to withstand radial loads, while deep groove ball bearings are used to withstand axial loads.
  • the installation and fixing structure and the lubrication method have an important influence on the performance life of the bearing.
  • the traditional method is to directly match the two bearings to each other.
  • a single bearing a single bearing assembly structure and lubrication method are used. For example, oil is injected from the side of one bearing, and waste oil is discharged from the side of the other bearing.
  • the traditional method has certain drawbacks: First, it will cause the inner bearing to block due to the outer bearing, so that the grease will accumulate on the inner side and affect the heat dissipation; secondly, the outer bearing will always need to use the inner bearing to lubricate the "used" grease. The lubrication is poor; the third is that the two bearings are in contact with each other, which is not conducive to heat dissipation of the bearings, and is not conducive to the discharge of waste oil
  • Patented a double-bearing lubricating device for electric motor and motor proposes to separate the bearing with a retaining ring, filling the space separated from the middle of the double bearing, and discharging the waste grease from the outside of the two bearings.
  • the way there is a certain improvement compared to the traditional method.
  • the two bearings share a grease storage chamber, and it is impossible to independently control the amount of fatliquoring;
  • the waste oil passage of the inner bearing has a complicated twist, which is not conducive to the discharge of waste oil.
  • a dual bearing structure for a motor with a dual lubrication system including a rotating shaft, an inner bearing chamber, an outer bearing chamber, an inner bearing, an outer bearing, an inner bearing cap, an inner oil seal, and an outer bearing cap. , external oil seal, grease regulator and waste oil box,
  • the inner shaft bearing, the grease regulator and the outer bearing are sleeved on the rotating shaft, the grease regulator is located between the inner bearing and the outer bearing, and the outer bearing chamber is sleeved in the In the outer bearing, the inner bearing chamber is sleeved on the inner bearing, and the inner bearing and the inner bearing chamber are provided with an inner bearing cover at an end thereof, and the inner bearing cover is disposed between the inner bearing cover and the rotating shaft An inner oil seal is provided, and an outer bearing cover is disposed at an end of the outer bearing and the outer bearing chamber, and an outer oil seal is disposed between the outer bearing cover and the rotating shaft,
  • the inner bearing chamber, the inner bearing cover, the inner oil seal and the inner bearing constitute an inner grease storage chamber, and the outer bearing chamber is provided with an inner grease passage for connecting the outside and the inner grease chamber.
  • the outer bearing chamber, the outer bearing cover, the outer oil seal and the outer bearing constitute an outer grease reservoir, and the outer bearing chamber is provided with an outer grease passage for connecting the outside and the inner grease chamber.
  • the inner bearing chamber, the inner bearing and the grease regulator constitute an inner grease chamber
  • the outer bearing chamber, the outer bearing and the grease regulator constitute an outer grease chamber
  • the outer bearing chamber The side bottom portion is provided with a grease discharge hole for communicating with the waste oil tank, and the grease discharge hole is respectively communicated with the inner grease discharge chamber and the outer grease discharge chamber.
  • the grease is injected into the inner grease chamber and the outer grease chamber from the inner grease passage of the inner bearing chamber and the outer grease passage of the outer bearing chamber, and the grease is squeezed after lubricating the inner bearing and the outer bearing. They are collected into the inner and outer grease chambers. Some of these greases continue to lubricate the inner and outer bearings, and the other part acts as a “waste oil” under the centrifugal force generated by the rotation of the grease regulator. It is taken out to the drain hole at the bottom of the outer bearing chamber and finally collected into the waste oil tank.
  • the inner bearing lubrication system and the outer bearing lubrication system of the invention are independent, and the inner bearing and the outer bearing can be filled with unequal amounts of grease according to actual needs without mutual interference; the waste oil is discharged between the inner bearing and the outer bearing,
  • the waste oil discharge passage can be shared, which simplifies the waste oil discharge path and is beneficial to the discharge of waste oil; the inner bearing and the outer bearing are separated by the grease regulator, which is beneficial to the heat dissipation of the bearing and reduces the working temperature rise of the bearing.
  • the fat-discharging aperture is a flared shape that is narrower and wider than the upper. Therefore, the discharged grease is prevented from accumulating in the fat-discharging hole, which is more advantageous for the waste oil to be collected into the waste oil tank through the grease-removing hole.
  • the outer bearing is in a clearance fit with the outer bearing chamber. This is used to withstand axial loads.
  • the inner bearing and the inner bearing chamber are in a transitional fit. This is used to withstand radial loads.
  • the sides of the grease regulator are slanted. It is convenient for the waste grease in the inner grease chamber and the outer grease chamber to be discharged.
  • the waste oil tank is made of plastic. Low cost and instantly replaceable.
  • the waste oil cartridge includes an associated cartridge and a lid, the lid being provided with a buckle that is snapped onto the outer bearing chamber.
  • the outer bearing is a deep groove ball bearing and the inner bearing is a cylindrical roller bearing.
  • the use of deep groove ball bearings as outer bearings can reduce friction components and increase the speed; the use of cylindrical roller bearings as internal bearings can prevent the roller from tilting or friction between the rollers, effectively preventing the increase of the rotational torque; Work efficiency.
  • the outer bearing is a cylindrical roller bearing and the inner bearing is a deep groove ball bearing.
  • the use of cylindrical roller bearings as outer bearings prevents the inclination of the rollers or the friction between the rollers, effectively preventing the increase of the rotational torque; the use of deep groove ball bearings as internal bearings can reduce the friction components and increase the speed; Work efficiency.
  • FIG. 1 is a schematic structural view of a lubricating device for a dual bearing of a motor according to Embodiment 1 of the present invention
  • Fig. 2 is a structural schematic view showing a lubricating device for a double bearing of a motor according to a second embodiment of the present invention.
  • the double bearing structure for the motor with dual lubrication system includes a rotating shaft 10, an inner bearing chamber 6, an outer bearing chamber 4, an inner bearing 7, an outer bearing 3, an inner bearing cover 8, an inner oil seal 9, and an outer casing.
  • Bearing cap 2 outer oil seal 1, grease regulator 5 and waste oil tank 11.
  • the outer bearing 3 is a deep groove ball bearing and the inner bearing 7 is a cylindrical roller bearing. In other embodiments, the outer bearing 3 is a cylindrical roller bearing and the inner bearing 7 is a deep groove ball bearing.
  • the inner shaft 7, the grease regulator 5 and the outer bearing 3 are sleeved on the rotating shaft 10.
  • the grease regulator 5 is located between the inner bearing 7 and the outer bearing 3. The two sides of the grease regulator 5 are inclined to facilitate the discharge of waste grease in the inner grease chamber and the outer grease chamber.
  • the outer bearing chamber 4 is sleeved on the outer bearing 3.
  • the outer bearing 3 is in clearance fit with the outer bearing chamber 4, thereby being used to withstand axial loads.
  • the inner bearing chamber 6 is sleeved on the inner bearing 7, and the inner bearing 7 and the inner bearing chamber 6 are in a transitional fit. This is used to withstand radial loads.
  • the inner bearing 7 and the inner bearing chamber 6 are provided with an inner bearing cover 8 at the end.
  • An inner oil seal 9 is provided between the inner bearing cap 8 and the rotating shaft 10.
  • An outer bearing cap 2 is provided at an end of the outer bearing 3 and the outer bearing chamber 4.
  • An outer oil seal 1 is provided between the outer bearing cap 2 and the rotating shaft 10.
  • the inner bearing chamber 6, the inner bearing cap 8, the inner oil seal 9 and the inner bearing 7 constitute an inner grease reservoir.
  • the inner bearing chamber 6 is provided with an inner grease passage 121 for communicating the outside and the inner grease chamber.
  • the outer bearing chamber 4, the outer bearing cap 2, the outer oil seal 1 and the outer bearing 3 constitute an outer grease reservoir.
  • the outer bearing chamber 4 is provided with an outer grease passage 122 for connecting the outer and outer grease chambers.
  • the inner bearing chamber 6, the inner bearing 7, and the grease regulator 5 constitute an inner grease chamber.
  • the outer bearing chamber 4, the outer bearing 3 and the grease regulator 5 constitute an outer grease chamber.
  • the side bottom of the outer bearing chamber 4 is provided with a grease discharge hole 13 communicating with the waste oil tank 11, and the grease discharge hole 13 communicates with the inner grease discharge chamber through the first communication hole, and the grease discharge hole 13 passes through the second communication hole and the outer grease discharge.
  • the cavity is connected.
  • the grease discharge hole 13 has a trumpet shape with a narrow upper and a lower width.
  • the material of the waste oil tank 11 is plastic. Low cost and instantly replaceable.
  • the waste oil tank 11 includes a connected casing and a cover, and the cover is provided with a buckle which is buckled on the outer bearing chamber 4. When you need to clean the waste oil, you can directly remove the buckle of the Panasonic lid, remove the box, and then put on a new box, which is easy and convenient to operate.
  • the grease is injected from the inner grease passage 121 of the inner bearing chamber 6 and the outer grease passage 122 of the outer bearing chamber 4 into the inner grease chamber and the outer grease chamber, respectively, and the grease is lubricated in the inner bearing 7 and After the outer bearing 3 is extruded, it is collected into the inner grease chamber and the outer grease chamber. Some of these greases continue to lubricate the inner bearing 7 and the outer bearing 3, and the other portion acts as a "waste oil" in the grease adjustment. Under the action of the centrifugal force generated by the rotation of the device 5, it is taken out to the drain hole 13 at the bottom of the outer bearing chamber 4 and finally collected into the waste oil tank 11.
  • the lubrication system of the inner bearing 7 of the present invention and the lubrication system of the outer bearing 3 are independent, and the inner bearing 7 and the outer bearing 3 can be filled with unequal amounts of grease according to actual needs without mutual interference; waste oil from the inner bearing 7 and outside
  • the discharge between the bearings 3 can share the waste oil discharge passage, simplifying the waste oil discharge path and facilitating the discharge of the waste oil;
  • the inner bearing 7 and the outer bearing 3 are separated by the grease regulator 5, which is beneficial to the bearing heat dissipation and reduces the bearing. Work temperature rises.
  • the outer bearing chamber 4 and the inner bearing chamber 6 of the split structure in the first embodiment are combined into a single unit structure as the bearing chamber 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne une structure à double palier pour un moteur ayant un système à double lubrification. Un palier intérieur (7), un disque de soupape à graisse (5) et un palier extérieur (3) sont emmanchés sur un arbre de rotation (10) ; le disque de soupape à graisse est situé entre le palier intérieur et le palier extérieur ; une chambre de palier extérieur (4) est emmanchée sur le palier extérieur ; une chambre de palier intérieur (6) est emmanchée sur le palier intérieur ; les parties d'extrémité du palier intérieur et de la chambre de palier intérieur sont pourvues d'un couvercle de palier intérieur (8) ; un joint d'huile intérieur (9) est disposé entre le couvercle de palier intérieur et l'arbre de rotation ; les parties d'extrémité du palier extérieur et de la chambre de palier extérieur comportent un couvercle de palier extérieur (2) ; un joint d'huile extérieur (1) est disposé entre le couvercle de palier extérieur et l'arbre de rotation ; la chambre de palier intérieur, le couvercle de palier intérieur, le joint d'huile intérieur et le palier intérieur forment une cavité de stockage de graisse intérieur ; un canal d'injection de graisse intérieur (122) est disposé à l'intérieur de la chambre de palier intérieur ; la chambre de palier extérieur, le couvercle de palier extérieur, le joint d'huile extérieur et le palier extérieur forment une cavité de stockage de graisse extérieur ; un canal d'injection de graisse extérieur (121) est disposé à l'intérieur de la chambre de palier extérieur ; la chambre de palier intérieur, le palier intérieur et le disque de soupape à graisse forment une cavité d'évacuation de graisse intérieur ; la chambre de palier extérieur, le palier extérieur et le disque de soupape à graisse forment une cavité d'évacuation de graisse extérieur ; des trous d'évacuation de graisse (13) sont disposés au niveau du fond latéral de la chambre de palier extérieur et sont respectivement en communication avec la cavité d'évacuation de graisse intérieur et la cavité d'évacuation de graisse extérieur.
PCT/CN2018/103859 2017-10-13 2018-09-03 Structure à double palier pour moteur ayant un système à double lubrification Ceased WO2019072050A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710954555.3 2017-10-13
CN201710954555.3A CN107508410A (zh) 2017-10-13 2017-10-13 一种带有双润滑系统的电机用双轴承结构

Publications (1)

Publication Number Publication Date
WO2019072050A1 true WO2019072050A1 (fr) 2019-04-18

Family

ID=60701661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/103859 Ceased WO2019072050A1 (fr) 2017-10-13 2018-09-03 Structure à double palier pour moteur ayant un système à double lubrification

Country Status (2)

Country Link
CN (1) CN107508410A (fr)
WO (1) WO2019072050A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114260263A (zh) * 2021-12-27 2022-04-01 亚太轻合金(南通)科技有限公司 一种盘管内壁处理装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107508410A (zh) * 2017-10-13 2017-12-22 江苏中车电机有限公司 一种带有双润滑系统的电机用双轴承结构
CN108696037A (zh) * 2018-05-08 2018-10-23 中车永济电机有限公司 一种牵引电机定位端双轴承结构
CN109296652A (zh) * 2018-11-08 2019-02-01 湖南崇德工业科技有限公司 轴承总成
DE102019206268A1 (de) * 2019-05-02 2020-11-05 Volkswagen Aktiengesellschaft Nabenanordnung
CN110274146B (zh) * 2019-07-30 2024-08-02 中车株洲电机有限公司 一种风力发电机轴承用废油脂排出装置
CN112713693A (zh) * 2020-12-22 2021-04-27 上海电气集团上海电机厂有限公司 一种倾斜45°安装的电机用高转速重载荷滚动轴承装置
CN113746249B (zh) * 2021-08-20 2022-09-09 西安中车永电捷力风能有限公司 一种用于单端双轴承的并联式油路结构及其应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101383536A (zh) * 2008-10-24 2009-03-11 大连电机集团有限公司 轴向大载荷永磁直驱电机
CN202334098U (zh) * 2011-11-25 2012-07-11 南车株洲电机有限公司 一种电机双轴承润滑装置及电机
CN203554159U (zh) * 2013-10-08 2014-04-16 内蒙古伊泰煤制油有限责任公司 引风机电机轴承座润滑结构
CN107508410A (zh) * 2017-10-13 2017-12-22 江苏中车电机有限公司 一种带有双润滑系统的电机用双轴承结构
CN207321013U (zh) * 2017-10-13 2018-05-04 江苏中车电机有限公司 一种带有双润滑系统的电机用双轴承结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101383536A (zh) * 2008-10-24 2009-03-11 大连电机集团有限公司 轴向大载荷永磁直驱电机
CN202334098U (zh) * 2011-11-25 2012-07-11 南车株洲电机有限公司 一种电机双轴承润滑装置及电机
CN203554159U (zh) * 2013-10-08 2014-04-16 内蒙古伊泰煤制油有限责任公司 引风机电机轴承座润滑结构
CN107508410A (zh) * 2017-10-13 2017-12-22 江苏中车电机有限公司 一种带有双润滑系统的电机用双轴承结构
CN207321013U (zh) * 2017-10-13 2018-05-04 江苏中车电机有限公司 一种带有双润滑系统的电机用双轴承结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114260263A (zh) * 2021-12-27 2022-04-01 亚太轻合金(南通)科技有限公司 一种盘管内壁处理装置

Also Published As

Publication number Publication date
CN107508410A (zh) 2017-12-22

Similar Documents

Publication Publication Date Title
WO2019072050A1 (fr) Structure à double palier pour moteur ayant un système à double lubrification
CN102466026B (zh) 轴装置
JPH0410396Y2 (fr)
KR101828146B1 (ko) 오일 윤활 구조를 가지는 습식 다판 클러치
CN208571796U (zh) 一种耐磨损式离合减速电机
CN101413578A (zh) 组合润滑齿轮箱
US12422037B2 (en) Drive assembly and vehicle having such a drive assembly
US1570356A (en) Lubricating appliance
CN207321013U (zh) 一种带有双润滑系统的电机用双轴承结构
CN201166251Y (zh) 一种用于振动筛箱式激振器的润滑密封结构
CN108953386A (zh) 一种电机及其轴承润滑密封结构
US3048724A (en) Bearing assembly for dynamoelectric machines
US4674600A (en) Lubrication arrangement in change-speed gearing assembly
US1604793A (en) Pump
CN110230594B (zh) 旋转泵
US1914891A (en) Sealing device
CN223524212U (zh) 一种精密型重载角接触球轴承
CN215762866U (zh) 一种泵用防漏油的轴承部装
US4230379A (en) Antifriction bearing construction
CN205592339U (zh) 装载机变矩器取力口轴承的润滑结构
CN211259388U (zh) 一种主轴润滑结构
CN219673916U (zh) 一种用于外置主轴轴承的机油润滑结构
CN213494212U (zh) 一种制砂机轴承桶
CN113464483B (zh) 自润滑水泵座、冷却泵及发动机
CN216879515U (zh) 一种自动加注润滑脂的圆锥破碎机水平轴总成

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18866442

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18866442

Country of ref document: EP

Kind code of ref document: A1