CN109108895A - The efficient disassembling fixture of bearing inner race - Google Patents
The efficient disassembling fixture of bearing inner race Download PDFInfo
- Publication number
- CN109108895A CN109108895A CN201811183575.6A CN201811183575A CN109108895A CN 109108895 A CN109108895 A CN 109108895A CN 201811183575 A CN201811183575 A CN 201811183575A CN 109108895 A CN109108895 A CN 109108895A
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- CN
- China
- Prior art keywords
- stripping ring
- bearing
- inner race
- gear
- bearing inner
- 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.)
- Pending
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- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000006798 ring closing metathesis reaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention belongs to tooling device technical fields, a kind of efficient disassembling fixture of bearing inner race is disclosed, disassembly applied to axis upper bearing (metal), gear is installed on axis, disassembling fixture includes the closure stripping ring with inner hole being in turn connected to form by multiple sub- stripping rings, gear is equipped with circumferential recess for closure stripping ring insertion in the installation junction with bearing, the closure stripping ring first end face of insertion is bonded bearing inner race end face, second end face is bonded circumferential recess sidewall on gear, it is closed the slot bottom of the inner hole wall fitting circumferential recess of stripping ring, the circumferential direction of closure stripping ring is evenly distributed with multiple can abut with gear web so that being closed the ejecting mechanism that stripping ring axially makees abjection displacement with dynamic bearing along axis.A closure stripping ring is combined by multiple sub- stripping rings, by abutting the ejecting mechanism so that bearing inner race abjection with gear web, can easily by bearing inner race retract to can light extracting position, this tooling is suitable for the bearing removal under various installing positions of bearings difference situations.
Description
Technical field
The present invention relates to tooling device technical fields, and in particular, to a kind of efficient disassembling fixture of bearing inner race.
Background technique
Bearing is a kind of important spare part in machinery field, is made of inner ring, outer ring, rolling element and retainer.Work as generation
Bearing do not install, periodic maintenance and when other situations, is dismantled.Due between bearing inner race and shaft forgings frequently with
Interference fit, when disassembly, it is ensured that do not damage bearing, disassembly difficulty is larger.
The method that disassembly bearing generally uses, which has, the methods of directly to be knocked out, heats and utilize tooling.It directly taps and easily damages
Bad bearing, especially when bearing inner race and axis have larger magnitude of interference, it is difficult directly to knock out；Heating needs to control temperature
Degree, avoids temperature excessively high, damages roller, therefore in practical disassembly process, is method the most suitable using tooling disassembly.
Rail traffic is that gear and bearing interference are mounted on axle with pinion gear structure, and bearing face abuts tooth
Wheel must just use external force to eject bearing outward using tooling disassembly bearing.However, bearing dismounting tool in the prior art
It is to be carried using axle end face, removal efficiency is low, tooling weight is big, occupied space is big, manufacturing cost is high, is relatively specific for bearing
Installation site apart from the closer bearing removal of axle end face, when installing positions of bearings apart from axle end face farther out when, need longer
Connecting component, the whole axial dimension of disassembling fixture is larger, weight is big, occupied space is big；When different model box bearing
From axle end face apart from it is different when, also need to do various sizes of connecting component, manufacturing cost is high, and versatility is low.
Summary of the invention
Present invention solves the technical problem that being to overcome the deficiencies of existing technologies, a kind of efficient and simple axis of structure is provided
Hold inner ring disassembling fixture, bearing inner race uniform force when disassembly will not damage the bearing inner race of bearing.
The purpose of the present invention is achieved through the following technical solutions:
A kind of efficient disassembling fixture of bearing inner race is closely equipped with gear at bearing on axis, tears open applied to the disassembly of axis upper bearing (metal)
Unloading tooling includes the closure stripping ring with inner hole being in turn connected to form by multiple sub- stripping rings, and gear is in the installation with bearing
Junction is equipped with circumferential recess and is embedded in for closure stripping ring, the closure stripping ring first end face fitting bearing inner race end face of insertion,
Second end face is bonded circumferential recess sidewall on gear, is closed the slot bottom of the inner hole wall fitting circumferential recess of stripping ring, closure disassembly
The circumferential direction of ring is evenly distributed with multiple can abut with gear web and axially makees to deviate from along axis so that being closed stripping ring band dynamic bearing
The ejecting mechanism of displacement.
Further, multiple sub- stripping ring sizes, structure are identical.
Further, sub- stripping ring number is 2.
Further, ejecting mechanism includes withdrawable type bolt, is closed on the nearly peripheral end face of stripping ring and is evenly equipped with multiple pass through
The threaded hole of closure stripping ring is worn, one end that withdrawable type bolt passes through threaded hole is abutted with gear web.
Further, closure stripping ring is closed towards the end face of bearing far from being arranged at bearing inner race periphery in the conical surface
Thickness of the stripping ring at periphery is greater than thickness at inner hole.
Further, the both ends of sub- stripping ring are equipped with outer male structure, and the outer male structure of adjacent sub- stripping ring is connected by bolt
It connects.
Compared with prior art, the invention has the following advantages:
1) being combined into one by multiple sub- stripping rings can be with bearing and the mutually matched closure stripping ring of gear, can be with tooth by setting
It takes turns web and abuts the ejecting mechanism so that bearing inner race abjection, can realize the flexible installation of this tooling, while easily with gear abdomen
Plate is fulcrum, can easily by bearing inner race retract to can light extracting position, being not necessarily limited in the prior art need to be with axle end
Face is the thinking for ejecting fulcrum, this tooling is suitable for the bearing removal under various installing positions of bearings difference situations；
2) conical surface design being closed on stripping ring ensure that its position thickness at outer peripheral surface with installation withdrawable type bolt,
On the one hand it increases with the contact area of withdrawable type bolt, and the ejecting force of withdrawable type bolt can be made to enhance, on the other hand can ensure that
The structural strength of tooling entirety, will not deformation occurs easily in bearing inner race disassembly process；
3) this tool structure is simple, and processing cost is low, versatile, easy to use, the drawing being evenly arranged on nearly peripheral end face
Type bolt is tightened simultaneously, it is ensured that bearing inner race uniform force when disassembly will not damage bearing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the efficient disassembling fixture of bearing inner race described in embodiment 1；
Fig. 2 is the schematic cross-sectional view of closure stripping ring described in embodiment 1；
Fig. 3 is the disassembly process schematic diagram that the efficient disassembling fixture of bearing inner race described in embodiment 1 carries out bearing removal.
Specific embodiment
The present invention is further illustrated With reference to embodiment, wherein attached drawing only for illustration,
What is indicated is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment 1
As shown in figures 1 and 3, a kind of efficient disassembling fixture of bearing inner race is provided, it is especially suitable applied to the disassembly of axis upper bearing (metal)
The disassembly of bearing inner race 2 in rail vehicle material gear-box on axle 1 is closely equipped with gear 3 at bearing on axle 1,
Disassembling fixture includes the closure stripping ring 4 with inner hole 41 being in turn connected to form by the identical sub- stripping ring 42 of two structures,
Gear 3 is equipped with circumferential recess 31 in the installation junction with bearing 2 and is embedded in for closure stripping ring 4, the closure stripping ring 4 of insertion the
One end face paste closes 2 end face of bearing inner race, second end face is bonded 31 side wall of circumferential recess on gear, is closed the inner hole wall of stripping ring 4
Be bonded the slot bottom of circumferential recess 31, the circumferential direction of closure stripping ring 4 be uniformly distributed there are four can be abutted with gear web 32 so that
Stripping ring 4 is closed with dynamic bearing along the axial ejecting mechanism for making abjection displacement of axle 1.
Specifically, sub- stripping ring 42 is also possible to two or more, size can also it is different (i.e. arc length correspond to length can not
Together), as long as a regular closure stripping ring can be interconnected to form.The present embodiment using two sub- stripping rings,
To simplify processing technology, the two sub- stripping rings can be to cut after entire closure stripping ring processes and form into two.
The both ends of two sub- stripping rings 42 are equipped with outer male structure 421, the outer umbo at the closure for forming closure stripping ring 4
Through-hole or matched threaded hole are set on structure 421, screw 422 is screwed in the through-hole or threaded hole, and auxiliary in the screw other end
With nut tightening, two sub- stripping rings 42 can be made to tighten together.
Ejecting mechanism includes withdrawable type bolt 5, is closed on the nearly peripheral end face of stripping ring 4 there are four being evenly distributed with and tears open through closure
The threaded hole 43 of ring is unloaded, one end that withdrawable type bolt 5 passes through threaded hole is abutted with gear web 32.
In general, four threaded holes 43 are uniformly distributed, then there are two threaded holes on the every sub- stripping ring 42 that be bound to, and are true
The whole uniform force of closure stripping ring itself is protected, two threaded holes on sub- stripping ring are also to be uniformly arranged, in this way, can have
Effect prevents four corners except being distributed at closure stripping ring closure from the micro-strains such as warpage occur.
Withdrawable type bolt 5 is standard component, and structural strength is high, during abutting with gear web and screwing in threaded hole not
The failures such as can bend, it is ensured that the orderly progress of bearing removal movement.
Stripping ring 4 is closed towards axis as depicted in figs. 1 and 2 to further enhance the structural strength of the tooling of the present embodiment
(conical surface 44 is as shown in figure) is arranged in the conical surface at separate 2 periphery of bearing inner race in the end face held, so that closure stripping ring 4 is outside
Thickness at week is greater than thickness at inner hole, this design can increase the contact area of closure stripping ring 4 and withdrawable type bolt 5, draws
Pulling out type bolt 5 will continue screw in straight line path, will not run-off the straight and generate the component in remaining direction, and then make withdrawable type spiral shell
The ejecting force of bolt 5 enhances, and plays the effect that disassembly bearing gets twice the result with half the effort, on the other hand also ensures that the structure of tooling entirety is strong
Degree, will not deformation occurs easily in bearing inner race disassembly process.
The concrete operations of the tooling disassembly bearing inner race of the present embodiment are as follows: two sub- stripping rings 42 are respectively aligned to gear
The circumferential recess 31 set on 3 is embedded in, and the bulge-structure 421 of two sub- stripping rings is linked together using screw 422 and nut,
Four withdrawable type bolts 5 are screwed in four threaded holes 43 on the nearly peripheral end face of closure stripping ring again, make four withdrawable type spiral shells
The end of bolt 5 is pushed against on gear web 32, later uniform precession four withdrawable type bolts 5 simultaneously, due to gear 3 and axle
1 have larger magnitude of interference and combination pressure it is larger, therefore withdrawable type bolt 5 be against on gear web 32 and uniformly screw in when, close
Stripping ring 4 is closed since stress will be made to retreat movement axially towards shaft end, to drive bearing inner race 2 also mobile toward shaft end, so
Easily bearing inner race 2 can be exited.
Obviously, above-described embodiment is only intended to clearly illustrate technical solution of the present invention example, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in right of the present invention and want
Within the protection scope asked.
Claims (6)
1. a kind of efficient disassembling fixture of bearing inner race, applied to the disassembly of axis upper bearing (metal), gear closely is installed at bearing on axis,
It is characterized in that, disassembling fixture includes the closure stripping ring with inner hole being in turn connected to form by multiple sub- stripping rings, gear
Circumferential recess is equipped with for closure stripping ring insertion, the closure stripping ring first end face fitting of insertion in the installation junction with bearing
Circumferential recess sidewall on bearing inner race end face, second end face fitting gear is closed the inner hole wall fitting circumferential recess of stripping ring
Slot bottom, the circumferential direction for being closed stripping ring are evenly distributed with multiple can abut with gear web so that being closed stripping ring band dynamic bearing edge
Axis axially makees the ejecting mechanism of abjection displacement.
2. the efficient disassembling fixture of bearing inner race according to claim 1, which is characterized in that multiple sub- stripping ring sizes, knot
Structure is identical.
3. the efficient disassembling fixture of bearing inner race according to claim 2, which is characterized in that sub- stripping ring number is 2.
4. the efficient disassembling fixture of bearing inner race according to claim 1, which is characterized in that ejecting mechanism includes withdrawable type spiral shell
Bolt, is closed and is evenly equipped with multiple threaded holes through closure stripping ring on the nearly peripheral end face of stripping ring, and withdrawable type bolt passes through spiral shell
One end of pit is abutted with gear web.
5. the efficient disassembling fixture of bearing inner race according to claim 1, which is characterized in that be closed stripping ring towards bearing
End face is closed thickness of the stripping ring at periphery and is greater than thickness at inner hole far from being arranged at bearing inner race periphery in the conical surface.
6. the efficient disassembling fixture of bearing inner race according to claim 1, which is characterized in that the both ends of sub- stripping ring are equipped with outer
The outer male structure of male structure, adjacent sub- stripping ring is bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183575.6A CN109108895A (en) | 2018-10-11 | 2018-10-11 | The efficient disassembling fixture of bearing inner race |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183575.6A CN109108895A (en) | 2018-10-11 | 2018-10-11 | The efficient disassembling fixture of bearing inner race |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108895A true CN109108895A (en) | 2019-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811183575.6A Pending CN109108895A (en) | 2018-10-11 | 2018-10-11 | The efficient disassembling fixture of bearing inner race |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109108895A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429743A (en) * | 2019-08-26 | 2019-11-08 | 河南师范大学 | A kind of motor and its bearing replacing method |
| CN112025612A (en) * | 2019-06-04 | 2020-12-04 | 中国航发商用航空发动机有限责任公司 | Bearing inner ring decomposition tool |
| WO2021035834A1 (en) * | 2019-08-28 | 2021-03-04 | 中车株洲电机有限公司 | Bearing inner ring axial withdrawing and dismounting tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4028841C1 (en) * | 1990-09-11 | 1991-11-21 | Horst 7730 Villingen-Schwenningen De Klann | Mounting for vehicle drive coupling - has threaded spindle with spigot supported in shaped sleeve |
| JPH11198060A (en) * | 1998-01-07 | 1999-07-27 | Takeuchi Press Ind Co Ltd | Removal method of flange type bearing unit |
| CN203471285U (en) * | 2013-09-29 | 2014-03-12 | 中国北车集团大同电力机车有限责任公司 | Device for dismounting gear side bearing of axle box of railway locomotive |
| CN203471712U (en) * | 2013-07-31 | 2014-03-12 | 广东拓奇电力技术发展有限公司 | Self-aligning screw bearing thruster |
| CN107825356A (en) * | 2017-11-29 | 2018-03-23 | 泸州邦立减速机有限责任公司 | A kind of bearing dismounting tool |
| CN208946074U (en) * | 2018-10-11 | 2019-06-07 | 株洲九方装备驱动技术有限公司 | The efficient disassembling fixture of bearing inner race |
-
2018
- 2018-10-11 CN CN201811183575.6A patent/CN109108895A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4028841C1 (en) * | 1990-09-11 | 1991-11-21 | Horst 7730 Villingen-Schwenningen De Klann | Mounting for vehicle drive coupling - has threaded spindle with spigot supported in shaped sleeve |
| JPH11198060A (en) * | 1998-01-07 | 1999-07-27 | Takeuchi Press Ind Co Ltd | Removal method of flange type bearing unit |
| CN203471712U (en) * | 2013-07-31 | 2014-03-12 | 广东拓奇电力技术发展有限公司 | Self-aligning screw bearing thruster |
| CN203471285U (en) * | 2013-09-29 | 2014-03-12 | 中国北车集团大同电力机车有限责任公司 | Device for dismounting gear side bearing of axle box of railway locomotive |
| CN107825356A (en) * | 2017-11-29 | 2018-03-23 | 泸州邦立减速机有限责任公司 | A kind of bearing dismounting tool |
| CN208946074U (en) * | 2018-10-11 | 2019-06-07 | 株洲九方装备驱动技术有限公司 | The efficient disassembling fixture of bearing inner race |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025612A (en) * | 2019-06-04 | 2020-12-04 | 中国航发商用航空发动机有限责任公司 | Bearing inner ring decomposition tool |
| CN112025612B (en) * | 2019-06-04 | 2021-10-29 | 中国航发商用航空发动机有限责任公司 | Bearing inner ring decomposition tool |
| CN110429743A (en) * | 2019-08-26 | 2019-11-08 | 河南师范大学 | A kind of motor and its bearing replacing method |
| CN110429743B (en) * | 2019-08-26 | 2021-06-11 | 河南师范大学 | Motor and bearing replacement method thereof |
| WO2021035834A1 (en) * | 2019-08-28 | 2021-03-04 | 中车株洲电机有限公司 | Bearing inner ring axial withdrawing and dismounting tool |
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Effective date of registration: 20190227 Address after: 412000 Tianxin High-tech Park, Shifeng District, Zhuzhou City, Hunan Province Applicant after: Zhuzhou nine party equipment driver technology Co., Ltd. Applicant after: Zhuzhou Gofront Equipment Co., Ltd. Address before: 412000 Tianxin High-tech Park, Shifeng District, Zhuzhou City, Hunan Province Applicant before: Zhuzhou nine party equipment driver technology Co., Ltd. |