CN103465223B - Bearing extractor - Google Patents

Bearing extractor Download PDF

Info

Publication number
CN103465223B
CN103465223B CN201310389165.8A CN201310389165A CN103465223B CN 103465223 B CN103465223 B CN 103465223B CN 201310389165 A CN201310389165 A CN 201310389165A CN 103465223 B CN103465223 B CN 103465223B
Authority
CN
China
Prior art keywords
mandrel
bearing
ring
screw
draw ring
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
CN201310389165.8A
Other languages
Chinese (zh)
Other versions
CN103465223A (en
Inventor
李�远
佟勇
吕长生
宋兴武
李宏
冯磊
周丽芳
徐秀波
齐晓辉
于伟
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.)
AVIC Harbin Dongan Engine Group Co Ltd
Original Assignee
AVIC Harbin Dongan Engine Group 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 AVIC Harbin Dongan Engine Group Co Ltd filed Critical AVIC Harbin Dongan Engine Group Co Ltd
Priority to CN201310389165.8A priority Critical patent/CN103465223B/en
Publication of CN103465223A publication Critical patent/CN103465223A/en
Application granted granted Critical
Publication of CN103465223B publication Critical patent/CN103465223B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The present invention relates to a kind of bearing extractor, comprise screw, draw ring, point half inner sleeve, outer shroud, mandrel, described mandrel coordinates with the hole of the end of axle, draw ring is cylindrical shape and is arranged on the outside of mandrel, the bottom of draw ring arranges screw, described screw puts in draw ring and withstands on mandrel, the cylindrical of draw ring is provided with ring-shaped step, half inner sleeve two ends are divided to be respectively arranged with inside step, wherein the step of one end is stuck on the step of draw ring, the step of the other end is stuck in the inner ring of bearing to be removed, and described outer shroud is arranged on a point outside for half inner sleeve.The present invention is rational in infrastructure, simple to operate, the mode of not holding inner ring by heated mandrel just can realize dismounting, and in the present invention simultaneously, point half inner sleeve is stuck in bearing inner ring, the measure such as mandrel and gland that arranges between screw and axle can ensure that unloading process middle (center) bearing and other parts do not sustain damage.

Description

Bearing extractor
Technical field
The present invention relates to a kind of bearing extractor.
Background technology
Bearing is indispensable parts in machine driving, require that in installation process the precision between the axle that is mated is higher, be generally interference fit, play is not produced in the course of the work to reach, affect reliability of operation, especially at aviation field, the required precision of installing it is higher, as the bearing on helicopter tail transmission shaft.In order to meet instructions for use, when mounted, be generally adopt heating bearing inner ring method internal diameter is expanded, then by forcing press by bearing assemble on axle.But when dismantling, owing to not heated by bearing inner ring separately, simultaneously because structure limits and bearing is different from the thermal expansion amount of axle, the method for therefore not holding by heated mandrel is dismantled.In addition, in unloading process, ensure that bearing or other parts do not sustain damage, therefore need special instrument to carry out.
Summary of the invention
Content of the present invention is to provide a kind of extracting tool, can realize the smooth dismounting of bearing on axle, ensures that bearing or other parts do not sustain damage.
Technical scheme of the present invention is: bearing extractor comprises screw, draw ring, divide half inner sleeve, outer shroud, mandrel, described mandrel coordinates with the hole of the end of axle, the step that mandrel is arranged is stuck in the end of axle, draw ring is cylindrical shape and is arranged on the outside of mandrel, the bottom of draw ring be provided with screw thread and and screw fit, described screw puts in draw ring and withstands on mandrel, the cylindrical of draw ring is provided with ring-shaped step, half inner sleeve is divided to be two semi-circular shape, two ends are respectively arranged with inside step, wherein the step of one end is stuck on the step of draw ring, the step of the other end is stuck in the inner ring of bearing to be removed, described outer shroud is arranged on a point outside for half inner sleeve.
One end of described screw is provided with handle, is provided with gland between described mandrel and screw, and described gland is arranged on mandrel, outer shroud is provided with inside step and is stuck in point in half to put.
The present invention by outer shroud, point half inner sleeve, and by rotary screw, by axial force transmission in the inner ring of bearing, makes bearing produce and moves axially, thus the object that bearing removal gets off by realization.The present invention is rational in infrastructure, simple to operate, the mode of not holding inner ring by heated mandrel just can realize dismounting, simultaneously in the present invention, point half inner sleeve is stuck in bearing inner ring, the measure such as mandrel and gland that arranges between screw and axle can ensure that unloading process middle (center) bearing and other parts do not sustain damage, Successful utilization is in real work, produces a desired effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is operating diagram of the present invention;
Detailed description of the invention
As shown in the figure, bearing extractor comprises screw 1, draw ring 2, divide half inner sleeve 4, outer shroud 5, mandrel 6, described mandrel 6 coordinates with the hole of the end of axle 7, the step that mandrel 6 is arranged is stuck in the end of axle 7, draw ring 2 is cylindrical shape and is arranged on the outside of mandrel 6, the bottom of draw ring 2 is provided with screw thread and coordinates with screw 1, described screw 1 puts in draw ring 2 and withstands on mandrel 6, the cylindrical of draw ring 2 is provided with ring-shaped step, half inner sleeve 4 is divided to be two semi-circular shape, two ends are respectively arranged with inside step, wherein the step of one end is stuck on the step of draw ring 2, the step of the other end is stuck in the inner ring of bearing 8 to be removed, described outer shroud 5 is arranged on a point outside for half inner sleeve 4.
One end of described screw is provided with handle 9, described mandrel 6 and and screw 1 between be provided with gland 3, described gland 3 is arranged on mandrel 6, outer shroud 5 is provided with inside step and is stuck in point half inner sleeve 4.
In use, be arranged on by mandrel 6 in the hole of the end of axle 7, the step of mandrel 6 is stuck in the end of axle 7, draw ring 2 on mandrel 6 overcoat, point half inner sleeve 4 is enclosed within the outside of draw ring 2 and bearing 8, and be stuck in the step of draw ring 2 and the inner ring of bearing 8 by step, outer shroud 5 on cover outside point half inner sleeve 4, mounting screw 1 and handle 9, turning handle 9, make point half inner sleeve 4 produce axial tension by screw 1, mandrel 6, and then band dynamic bearing 8 moves axially, final realization dismantles object.

Claims (5)

1. a bearing extractor, it is characterized in that, described instrument comprises screw [1], draw ring [2], divide half inner sleeve [4], outer shroud [5], mandrel [6], described mandrel [6] coordinates with the hole of the end of axle [7], the upper step arranged of mandrel [6] is stuck in the end of axle [7], draw ring [2] is for cylindrical shape and be arranged on the outside of mandrel [6], the bottom of draw ring [2] is provided with screw thread and coordinates with screw [1], described screw [1] puts in draw ring [2] and withstands on mandrel [6], the cylindrical of draw ring [2] is provided with ring-shaped step, half inner sleeve [4] is divided to be two semi-circular shape, two ends are respectively arranged with inside step, wherein the step of one end is stuck on the step of draw ring [2], the step of the other end is stuck in the inner ring of bearing to be removed [8], described outer shroud [5] is arranged on a point outside for half inner sleeve [4].
2. bearing extractor as claimed in claim 1, it is characterized in that, one end of described screw is provided with handle [9].
3. bearing extractor as claimed in claim 1, is characterized in that, be provided with gland [3] between described mandrel [6] and screw [1].
4. bearing extractor as claimed in claim 3, it is characterized in that, described gland [3] is arranged on mandrel [6].
5. bearing extractor as claimed in claim 1, is characterized in that, outer shroud [5] is provided with inside step and is stuck in point half inner sleeve [4].
CN201310389165.8A 2013-08-30 2013-08-30 Bearing extractor Active CN103465223B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310389165.8A CN103465223B (en) 2013-08-30 2013-08-30 Bearing extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310389165.8A CN103465223B (en) 2013-08-30 2013-08-30 Bearing extractor

Publications (2)

Publication Number Publication Date
CN103465223A CN103465223A (en) 2013-12-25
CN103465223B true CN103465223B (en) 2015-10-28

Family

ID=49790382

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310389165.8A Active CN103465223B (en) 2013-08-30 2013-08-30 Bearing extractor

Country Status (1)

Country Link
CN (1) CN103465223B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103991054B (en) * 2014-05-30 2016-03-23 张家港市Aaa轴承有限公司 A kind of bearing removal sleeve
CN106181873B (en) * 2016-08-27 2018-04-13 安徽阿莫斯泵业有限公司 A kind of axle envelope demounting tool
CN106671023B (en) * 2016-12-27 2019-09-20 中国航发南方工业有限公司 Bearing disassembling device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443249A1 (en) * 1984-11-23 1986-06-05 Franc 1000 Berlin Kroselj Device for removing and fitting rolling-contact bearings
DE202010002521U1 (en) * 2010-02-18 2010-06-24 Ho Chi Enterprises Co., Ltd. Clamping device for dismantling a bearing
CN101913137A (en) * 2010-09-14 2010-12-15 无锡赛得尔机械有限公司 Bearing disassembling device
CN201998130U (en) * 2011-03-29 2011-10-05 江西铜业股份有限公司 Dismounting device for rear wheel core of automobile
CN203566632U (en) * 2013-10-21 2014-04-30 哈尔滨东安发动机(集团)有限公司 Bearing disassembling tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3443695B2 (en) * 1994-12-05 2003-09-08 日野自動車株式会社 Dust boot press fitting tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443249A1 (en) * 1984-11-23 1986-06-05 Franc 1000 Berlin Kroselj Device for removing and fitting rolling-contact bearings
DE202010002521U1 (en) * 2010-02-18 2010-06-24 Ho Chi Enterprises Co., Ltd. Clamping device for dismantling a bearing
CN101913137A (en) * 2010-09-14 2010-12-15 无锡赛得尔机械有限公司 Bearing disassembling device
CN201998130U (en) * 2011-03-29 2011-10-05 江西铜业股份有限公司 Dismounting device for rear wheel core of automobile
CN203566632U (en) * 2013-10-21 2014-04-30 哈尔滨东安发动机(集团)有限公司 Bearing disassembling tool

Also Published As

Publication number Publication date
CN103465223A (en) 2013-12-25

Similar Documents

Publication Publication Date Title
CN203566632U (en) Bearing disassembling tool
CN103465223B (en) Bearing extractor
CN204041531U (en) The connecting structure of centrifugal compressor high speed gear shaft and impeller
CN203863613U (en) Tight-holding drawing-type bearing neck bush disassembly tool
CN201913332U (en) Novel high-precision fixture for grinding splined hole gear
CN202889129U (en) Expanding tire
CN103846353A (en) Sensor riveting clamp
CN201792307U (en) Automobile engine sealing ring guide-in tool
CN202937672U (en) Connecting device for motor connection
CN207223853U (en) A kind of outside framework oil seal stripping attachment
CN205231934U (en) Coupling mechanism between servo motor and speed reducer
CN204610597U (en) A kind of connection set of motor output shaft
CN211249879U (en) Expansion mandrel dismounting tool
CN203784152U (en) Thin wall brake sleeve for direct drive rotary table
CN204312517U (en) Pulley shaft on grass-mowing machine
CN204533249U (en) Internal connecting type rotating shaft
CN103883647B (en) Directly turn platform thin-walled braking sleeve and braking method
CN102916534B (en) Expander
CN202812204U (en) Novel oil retainer ring structure of three-phase asynchronous motor
CN203162092U (en) Two-stage cylindrical bevel gear reducer with high-speed shaft mechanism
CN202963476U (en) Motorized spindle rotor core double-conical-surface locating mechanism
CN202701846U (en) Expansion shaft sleeve for machining alloy spindle
CN203170985U (en) Transmission shaft
CN104668343A (en) Bearing flange closing and flat-rolling rolling tool
CN205270356U (en) Extracting tool of collars and taper sleeve

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant