CN106972679A - A kind of thin wall shaft bearing bore is bushing - Google Patents
A kind of thin wall shaft bearing bore is bushing Download PDFInfo
- Publication number
- CN106972679A CN106972679A CN201710281932.1A CN201710281932A CN106972679A CN 106972679 A CN106972679 A CN 106972679A CN 201710281932 A CN201710281932 A CN 201710281932A CN 106972679 A CN106972679 A CN 106972679A
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- CN
- China
- Prior art keywords
- bushing
- steel bushing
- thin wall
- motor
- shaft 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.)
- Pending
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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
- H02K5/1732—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 radially supporting the rotary shaft at both ends of the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention relates to field of mechanical technique, it is bushing to disclose a kind of thin wall shaft bearing bore, including：Motor upper cover (1), motor bottom end cover (2), new edge steel bushing (3) is inlaid with the motor upper cover (1), the end cap endoporus (5) of motor bottom end cover (2), the new edge steel bushing (3) is built with rolling bearing (4).Bearing saddle bore after the present invention is bushing is more wear-resisting than former ash cast iron bearing hole, it is to avoid the parts more renewed, improves utilization rate of equipment and installations, saves fund.
Description
Technical field
The present invention relates to field of mechanical technique, more particularly to a kind of thin wall shaft bearing bore are bushing.
Background technology
The upper and lower end cap in motor casing two ends installs the bearing block borehole jack inwall of rolling bearing, the rolling easily run at high speed
Make aperture increases to more than regime values after bearing outer ring extrusion abrasion, in the prior art, big thin-walled is ground because of axis hole to this
Middle and small motor end cap, re-replaces new end cap after always being scrapped.Installed to meet between new outsourcing end cap and motor
It is required that, first old electric motor end cap must be surveyed and drawn, it is time-consuming longer, and cause the wasting of resources.
The content of the invention
A kind of thin wall shaft bearing bore of present invention offer is bushing, and solution re-replaces new end cap in the prior art, must be first to old electricity
Generator terminal lid is surveyed and drawn, time-consuming longer, and causes the technical problem of the wasting of resources.
The purpose of the present invention is achieved through the following technical solutions：
A kind of thin wall shaft bearing bore is bushing, including：Motor upper cover 1, motor bottom end cover 2, the motor upper cover 1, motor
New edge steel bushing 3 is inlaid with the end cap endoporus 5 of bottom end cover 2, the new edge steel bushing 3 is built with rolling bearing 4
Bearing saddle bore after the present invention is bushing is more wear-resisting than former ash cast iron bearing hole, it is to avoid the parts more renewed, improves
Utilization rate of equipment and installations, saves fund.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
The embodiments of the invention provide a kind of thin wall shaft bearing bore is bushing, as shown in figure 1, including：Motor upper cover 1, motor
New edge steel bushing 3, the new edge steel bushing 3 are inlaid with bottom end cover 2, the motor upper cover 1, the end cap endoporus 5 of motor bottom end cover 2
Built with rolling bearing 4.
Wherein, described new edge steel bushing 3 one end is provided with shaft shoulder baffle ring 7.
Steel bushing shaft shoulder baffle ring plane and end cap borehole jack outer wall circular arc ear block are matched somebody with somebody and are drilled with 3 10mm holes 6.
The embodiments of the invention provide a kind of bushing processing installation method of thin wall shaft bearing bore is as follows：
1st, by the upper and lower end cap of motor be worn deformation endoporus by former 130.6mm turning to 136H6, and by end cap
The borehole jack plane of bearing block 4 of side protrusion hub plate 30mm height prunes 10mm.
2nd, bushing in fragility material thin-wall hole, both having needed certain pressure will be covered in load hole, and borehole jack must be prevented again
Fit tolerance is crossed because the magnitude of interference is bigger than normal by gray cast iron set thin-walled squeeze crack.Through comprehensive analysis, reference《Mechanical design handbook》P0 grades of rollings
Moving axis bearing outer-ring (upper deviation≤0) coordinates with the H7/P0 that bearing saddle bore is commonly used, and just will newly inlay and be used between steel bushing 3 and end cap endoporus 5
136H7/H6 coordinates, although the new edge outer wall of steel bushing 3 has slight clearance with end cap endoporus, but new edge steel bushing is in electric motor end cap endoporus
It can not be rotated in set, because being newly sliding friction between edge steel bushing outer wall and the endoporus of end cap 1,2, coefficient of friction is relatively
Greatly, the coefficient of friction very little of the spherical rolling body and between outer rim in the rolling bearing in new edge steel bushing, works as the axis of rolling
A certain amount of heating can be produced when high speed rotates by holding, and metapyretic rolling bearing will heat transfer on Steel Thin-Wall set,
The thin-walled steel bushing newly inlayed will be made to produce micro thermal expansion, fit clearance will be eliminated a part again.New bushing material uses Q235,
Length is identical with former end cap borehole jack 41mm, and steel bushing external diameter must press end cap reaming to 136mm actual size value, and by actual size
H6 fit tolerances value is processed, and steel bushing endoporus is then temporarily first by 126mm processing (secondary finishing again after steel bushing press-in end cap)；
3rd, steel bushing one end is designed with 200mm/126mm × 10mm shaft shoulder baffle rings, it is enhancing to design the shaft shoulder baffle ring purpose
Thin-walled steel bushing rigidity, convenient processing, convenient and end cap borehole jack end face screw is with boring, and another effect is when built-in to end-cover axle bearing bore
It is newly bushing outwards to be ejected from ending cover hole due to the positioning action of the shaft shoulder baffle ring during bearing.
4th, new steel bushing is gently pressed into after bearing saddle bore on the inside of electric motor end cap, first by steel bushing shaft shoulder baffle ring plane and ending cover hole
Outer wall circular arc ear block is covered with 3 10mm holes 6 of brill, then penetrates formation eccentric bolt in screw with 1 M10 bolt and compresses positioning, is prevented
Only when carrying out secondary finishing to steel bushing endoporus, the Steel Thin-Wall being newly bumped into is enclosed in ending cover hole because extrusion friction power is not enough and beats
It is sliding.
5th, to being newly bumped into the steel bushing 126mm endoporus of electric motor end cap bearing saddle bore, by bis- finishing endoporus of 130mmH7.
Because the Q235 steel bushings wearability being bumped into electric motor end cap bearing saddle bore is better than HT150 gray cast iron, in same ring
Under border, it is bushing after bearing saddle bore it is more wear-resisting than former ash cast iron bearing hole, it is to avoid the parts more renewed, improve equipment utilization
Rate, saves fund.
The present invention is described in detail above, principle and embodiment party of the specific case used herein to the present invention
Formula is set forth, and the explanation of above example is only intended to the method and its core concept for helping to understand the present invention；Meanwhile, it is right
In those of ordinary skill in the art, according to the thought of the present invention, change is had in specific embodiments and applications
Part, in summary, this specification content should not be construed as limiting the invention.
Claims (4)
1. a kind of thin wall shaft bearing bore is bushing, it is characterised in that including：Motor upper cover (1), motor bottom end cover (2), the motor
Be inlaid with new edge steel bushing (3) in upper end cover (1), the end cap endoporus (5) of motor bottom end cover (2), the new edge steel bushing (3) built with
Rolling bearing (4).
2. thin wall shaft bearing bore according to claim 1 is bushing, it is characterised in that described new edge steel bushing (3) one end is provided with axle
Shoulder baffle ring (7).
3. thin wall shaft bearing bore according to claim 1 is bushing, it is characterised in that by steel bushing shaft shoulder baffle ring plane and ending cover hole
Set outer wall circular arc ear block, which is matched somebody with somebody, is drilled with 3 10mm holes (6).
4. thin wall shaft bearing bore as claimed in any of claims 1 to 3 is bushing, it is characterised in that the new edge steel bushing
(3) material is Q235.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281932.1A CN106972679A (en) | 2017-04-26 | 2017-04-26 | A kind of thin wall shaft bearing bore is bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281932.1A CN106972679A (en) | 2017-04-26 | 2017-04-26 | A kind of thin wall shaft bearing bore is bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106972679A true CN106972679A (en) | 2017-07-21 |
Family
ID=59333579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710281932.1A Pending CN106972679A (en) | 2017-04-26 | 2017-04-26 | A kind of thin wall shaft bearing bore is bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106972679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492631A (en) * | 2019-08-22 | 2019-11-22 | 沈阳兴华航空电器有限责任公司 | A kind of Wind Volume three-phase brushless DC fan |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645625A (en) * | 2009-09-04 | 2010-02-10 | 无锡哈电电机有限公司 | Structure for preventing bearing of asynchronous dynamo from running off |
| CN104659947A (en) * | 2013-11-22 | 2015-05-27 | 江苏远东电机制造有限公司 | Front motor end cover with bushing |
-
2017
- 2017-04-26 CN CN201710281932.1A patent/CN106972679A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645625A (en) * | 2009-09-04 | 2010-02-10 | 无锡哈电电机有限公司 | Structure for preventing bearing of asynchronous dynamo from running off |
| CN104659947A (en) * | 2013-11-22 | 2015-05-27 | 江苏远东电机制造有限公司 | Front motor end cover with bushing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492631A (en) * | 2019-08-22 | 2019-11-22 | 沈阳兴华航空电器有限责任公司 | A kind of Wind Volume three-phase brushless DC fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |