CN102996626B - 整体式内圈无沟槽双联滚珠轴承 - Google Patents

整体式内圈无沟槽双联滚珠轴承 Download PDF

Info

Publication number
CN102996626B
CN102996626B CN201210526741.4A CN201210526741A CN102996626B CN 102996626 B CN102996626 B CN 102996626B CN 201210526741 A CN201210526741 A CN 201210526741A CN 102996626 B CN102996626 B CN 102996626B
Authority
CN
China
Prior art keywords
inner ring
groove
ring
wall
balls
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.)
Active
Application number
CN201210526741.4A
Other languages
English (en)
Other versions
CN102996626A (zh
Inventor
郑子勋
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.)
ZHEJIANG UTE BEARING CO Ltd
Original Assignee
ZHEJIANG UTE BEARING 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 ZHEJIANG UTE BEARING CO Ltd filed Critical ZHEJIANG UTE BEARING CO Ltd
Priority to CN201210526741.4A priority Critical patent/CN102996626B/zh
Publication of CN102996626A publication Critical patent/CN102996626A/zh
Application granted granted Critical
Publication of CN102996626B publication Critical patent/CN102996626B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Rolling Contact Bearings (AREA)

Abstract

整体式内圈无沟槽双联滚珠轴承，包括外圈、内圈、保持架、滚珠和端盖，其特征在于所述的外圈内壁制有两道沟槽，两道沟槽中分别设置滚珠，滚珠有保持架定位，所述的内圈外壁无沟槽，滚珠与光滑的内圈外壁相接触，在内圈与外圈的两头安装端盖。最核心技术是内圈也相当于两只轴承的长度，但内壁没有沟槽，两组滚珠与光滑的内圈外壁相接触，当电机轴受热膨胀而伸长时，内圈跟着电机轴外移，而外圈不外移，避免轴承与轴承座卡死，而且无沟槽也减少了滚珠的摩擦，提高电机转速。同时整体式的双联轴承无装配累计误差，提高装配精度，延长电机使用寿命。

Description

整体式内圈无沟槽双联滚珠轴承
技术领域
本发明涉及滚珠轴承，特别是涉及一种整体式内圈无沟槽双联滚珠轴承。
背景技术
高速电机由于转动速度很快，对传动部件的精度要求很高，例如轴承安装的径向和轴向要求无间隙装配。而现有使用两只滚珠轴承进行并联安装，一是两只轴承存在着装配累计误差；二是高速电机的转子发热后将热量传递给电机轴，电机轴受热后产生膨胀伸长，使整个轴承随着电机轴的伸长而外移，引起轴承（主要外圈）与轴承座卡死，严重地影响了电机的转速和使用寿命。
发明内容
本发明的目的是为了克服已有技术的缺点，提供一种当电机轴受热膨胀后，仅仅轴承内圈跟着电机轴外移，避免轴承与轴承座卡死，同时双联轴承无装配累计误差，提高电机转速和延长使用寿命的整体式内圈无沟槽双联滚珠轴承。
本发明整体式内圈无沟槽双联滚珠轴承的技术方案是：包括外圈、内圈、保持架、滚珠和端盖，其特征在于所述的外圈内壁制有两道沟槽，两道沟槽中分别设置滚珠，滚珠有保持架定位，所述的内圈外壁无沟槽，滚珠与光滑的内圈外壁相接触，在内圈与外圈的两头安装端盖。
本发明公开了一种整体式内圈无沟槽双联滚珠轴承，主要特点是在外圈的内壁有两道沟槽，安装了两组滚珠和两只保持架，相当于两只轴承制成一个整体的型式，最核心的技术是内圈也相当于两只轴承的长度，但内壁没有沟槽，两组滚珠与光滑的内圈外壁相接触，当电机轴受热膨胀而伸长时，内圈跟着电机轴外移，而外圈不外移，避免轴承与轴承座卡死，而且无沟槽也减少了滚珠的摩擦，提高电机转速（一般为30000转—60000转/分钟）。同时整体式的双联轴承无装配累计误差，提高装配精度，延长电机使用寿命。
附图说明
图1是本发明整体式内圈无沟槽双联滚珠轴承的截面示意图；
图2是内圈的截面示意图。
具体实施方式
本发明涉及一种整体式内圈无沟槽双联滚珠轴承，如图1—图2所示，包括外圈、内圈、保持架、滚珠和端盖，其特征在于所述的外圈1内壁制有两道沟槽11，两道沟槽11中分别设置滚珠2，滚珠有保持架3定位，所述的内圈4外壁无沟槽，滚珠2与光滑的内圈外壁相接触，在内圈4与外圈1的两头安装端盖5、6。主要特点是在外圈1的内壁有两道沟槽11，安装了两组滚珠2和两只保持架3，相当于两只轴承制成一个整体的型式，最核心的技术是内圈4也相当于两只轴承的长度，但内壁没有沟槽，两组滚珠与光滑的内圈外壁相接触，当电机轴受热膨胀而伸长时，内圈4跟着电机轴外移，而外圈不外移，避免轴承与轴承座卡死，而且无沟槽也减少了滚珠的摩擦，提高电机转速（一般为30000转—60000转/分钟）。同时整体式的双联轴承无装配累计误差，提高装配精度，延长电机使用寿命。

Claims (1)

1.整体式内圈无沟槽双联滚珠轴承，包括外圈、内圈、保持架、滚珠和端盖，其特征在于所述的外圈(1)内壁制有两道沟槽(11)，两道沟槽(11)中分别设置滚珠(2)，安装了两组滚珠(2)和两只保持架(3)，相当于两只轴承制成一个整体的型式，滚珠由保持架(3)定位，所述的内圈(4)也相当于两只轴承的长度，内圈(4)外壁无沟槽，两组滚珠(2)与光滑的内圈外壁相接触，当电机轴受热膨胀而伸长时，内圈(4)跟着电机轴外移，而外圈不外移，避免轴承与轴承座卡死，在内圈(4)与外圈(1)的两头安装端盖(5、6)；所述端盖(5、6)靠近所述内圈(4)的边缘与所述内圈(4)的外壁存在间隙，所述保持架(3)与所述内圈(4)外壁接触；每一所述保持架(3)设于该列所述滚珠(2)的轴向两侧。
CN201210526741.4A 2012-12-10 2012-12-10 整体式内圈无沟槽双联滚珠轴承 Active CN102996626B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210526741.4A CN102996626B (zh) 2012-12-10 2012-12-10 整体式内圈无沟槽双联滚珠轴承

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210526741.4A CN102996626B (zh) 2012-12-10 2012-12-10 整体式内圈无沟槽双联滚珠轴承

Publications (2)

Publication Number Publication Date
CN102996626A CN102996626A (zh) 2013-03-27
CN102996626B true CN102996626B (zh) 2017-05-17

Family

ID=47925599

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210526741.4A Active CN102996626B (zh) 2012-12-10 2012-12-10 整体式内圈无沟槽双联滚珠轴承

Country Status (1)

Country Link
CN (1) CN102996626B (zh)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003244095A1 (en) * 2002-06-25 2004-01-06 Nsk Ltd. Double-row ball bearing for supporting pulley
CN201196193Y (zh) * 2008-04-11 2009-02-18 万向集团公司 单一内圈轮毂轴承
CN102297197A (zh) * 2011-06-14 2011-12-28 大连大友高技术陶瓷有限公司 一种高精度可轴向变位陶瓷球轴承的生产工艺
CN202991850U (zh) * 2012-12-10 2013-06-12 浙江优特轴承有限公司 整体式内圈无沟槽双联滚珠轴承

Also Published As

Publication number Publication date
CN102996626A (zh) 2013-03-27

Similar Documents

Publication Publication Date Title
EP2479871B1 (en) Electrical machines
TWI678249B (zh) 主軸裝置
EP2808572B1 (en) Magnetic bearing assembly having inner ventilation
US10718382B2 (en) Cooling system for axial magnetic bearing
CN102416566A (zh) 一种静压气浮直驱转台
CN104520599A (zh) 具有结合到其的辅助轴承的复合磁轴承
CN104539096A (zh) 磁悬浮高速电机
JP2008185107A (ja) 玉軸受
US9140298B2 (en) Segmented viscoelastic bushing for rotating electrical machines bearing
CN102996626B (zh) 整体式内圈无沟槽双联滚珠轴承
CN106968972B (zh) 一种气悬浮轴承鼓风机及气悬浮轴承增压方法
TWI680029B (zh) 主軸裝置
CN104295602B (zh) 一种用于航天的直线运动滚子轴承
BR112015029486B1 (pt) Conjunto de rolamento magnético e turbomáquina
CN211202609U (zh) 一种采用异形隔离体代替保持架的高速球轴承
US10326332B2 (en) Electric machine
CN202991850U (zh) 整体式内圈无沟槽双联滚珠轴承
CN107381220B (zh) 一种绕线机主轴机构
WO2015100944A1 (zh) 一种滚珠花键副
CN103671506A (zh) 一种超高速电主轴用浮动轴承
CN204497908U (zh) 一种高速电机
CN204262368U (zh) 一种加工中心电主轴结构
CN103195823B (zh) 轮毂
CN110848265A (zh) 滚动轴承和电机
JP7528741B2 (ja) 遊星ローラトラクションドライブ装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Integrated double-connection ball bearing without inner ring groove

Effective date of registration: 20171027

Granted publication date: 20170517

Pledgee: Taizhou Luqiao rural cooperative bank, Zhejiang

Pledgor: ZHEJIANG UTE BEARING CO., LTD.

Registration number: 2017330000135

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20171212

Granted publication date: 20170517

Pledgee: Taizhou Luqiao rural cooperative bank, Zhejiang

Pledgor: ZHEJIANG UTE BEARING CO., LTD.

Registration number: 2017330000135

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Integrated double-connection ball bearing without inner ring groove

Effective date of registration: 20171227

Granted publication date: 20170517

Pledgee: Zhejiang Luqiao Taizhou rural commercial bank Limited by Share Ltd

Pledgor: ZHEJIANG UTE BEARING CO., LTD.

Registration number: 2017330000330

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20181212

Granted publication date: 20170517

Pledgee: Zhejiang Luqiao Taizhou rural commercial bank Limited by Share Ltd

Pledgor: ZHEJIANG UTE BEARING CO., LTD.

Registration number: 2017330000330

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Integrated double-connection ball bearing without inner ring groove

Effective date of registration: 20181214

Granted publication date: 20170517

Pledgee: Zhejiang Luqiao Taizhou rural commercial bank Limited by Share Ltd

Pledgor: ZHEJIANG UTE BEARING CO., LTD.

Registration number: 2018330000474