CN103465223B - Bearing extractor - Google Patents
Bearing extractor Download PDFInfo
- 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
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- China
- Prior art keywords
- mandrel
- bearing
- ring
- screw
- draw ring
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- 210000004907 Glands Anatomy 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
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].
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)
| 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)
| 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)
| 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 |
-
2013
- 2013-08-30 CN CN201310389165.8A patent/CN103465223B/en active Active
Patent Citations (5)
| 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 |
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| 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 |