CN106787456B - A method of weakening hollow shaft current influences - Google Patents
A method of weakening hollow shaft current influences Download PDFInfo
- Publication number
- CN106787456B CN106787456B CN201611179350.4A CN201611179350A CN106787456B CN 106787456 B CN106787456 B CN 106787456B CN 201611179350 A CN201611179350 A CN 201611179350A CN 106787456 B CN106787456 B CN 106787456B
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- CN
- China
- Prior art keywords
- hollow shaft
- faying face
- oxidation processes
- shaft
- hollow
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a kind of methods for weakening hollow shaft current and influencing, it includes the following steps：S1, the hollow shaft for taking motor（3）, make hollow shaft（3）With draining ring（1）Contact, draining ring（1）It is made of brass or bronze；S2, in hollow shaft（3）Faying face at carry out oxidation processes and form oxidation processes faces（2）, oxidation processes face（2）Increase the resistance of faying face, reduces calorific value, make shortage of heat to cause faying face to be sintered, the oxidation film of faying face makes sintering character reduce after oxidation processes；S3, when needing motor-hollow axle（3）When exiting main shaft, induction heating mode heating hollow shaft is first passed through（3）Outer wall, hollow shaft（3）Expanded by heating, i.e. hollow shaft（3）It is sufficiently separated with the faying face of main shaft.The beneficial effects of the invention are as follows：Effectively reduce electric current flow through faying face, not easy-sintering, hollow shaft can be exited easily.
Description
Technical field
The present invention relates to a kind of methods for weakening hollow shaft current and influencing.
Background technology
Motor is mechanically operated power source, and the shaft of motor is divided into hollow shaft and solid shafting, direct when for solid shafting
It can be connect with main shaft by shaft coupling, when the shaft of motor is hollow shaft, main shaft is plugged in hollow shaft and is connected with realizing, when
Electric current being had when hollow shaft drives main axis, at the faying face of hollow shaft and main shaft to flow through, the resistance of faying face causes to generate heat,
To cause hollow shaft to be sintered with main shaft, when needing hollow shaft exiting main shaft in the case of machinery check and repair or other, due to connecing
The reason of contacting surface is sintered, during exiting, weld point can hinder exiting for hollow shaft, make by force when with instruments such as hydraulic presses
Shaft exits, and weld point can become increasing with surrounding metal tissue is driven, and light then faying face surface can be caused to pull,
Heavy then shaft can not exit.
Invention content
It is an object of the invention to overcome the prior art, a kind of electric current that effectively reduces is provided and flows through faying face, no
Easy-sintering, the method that can easily influence the hollow shaft current of weakening that hollow shaft exits.
The purpose of the present invention is achieved through the following technical solutions：A method of weakening hollow shaft current influences, it is wrapped
Include following steps：
S1, the hollow shaft for taking motor, make hollow shaft be contacted with draining ring, and draining ring is made of brass or bronze；
S2, oxidation processes formation oxidation processes face is carried out at the faying face of hollow shaft, oxidation processes face increases faying face
Resistance, reduce calorific value, make shortage of heat to cause faying face to be sintered, the oxidation film of faying face makes agglutinating property after oxidation processes
It can reduce；
S3, when needing motor-hollow axle exiting main shaft, first pass through induction heating mode heating hollow shaft outer wall, it is hollow
The cooperation of axis expanded by heating, hollow shaft and main shaft becomes clearance fit, the i.e. knot of hollow shaft and main shaft from original interference fit
Conjunction face detaches, and finally realizes and hollow shaft is easily exited main shaft.
Oxidation processes in the step S2 are blackening process.
The draining ring and hollow shaft coaxial line.
The present invention has the following advantages：The present invention significantly reduces the circulating current of hollow shaft and main shaft faying face, makes
The possibility of sintering greatly reduces, even there are faint weld points, because having larger gap, Bu Huizao during exiting
At weld point situation more more long-pending bigger during exiting, the phenomenon that can not exiting is avoided.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
In figure, 1- draining rings, 2- oxidation processes face, 3- hollow shafts.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
As shown in Figure 1, a kind of method for weakening hollow shaft current and influencing, it includes the following steps：
S1, the hollow shaft 3 for taking motor, make hollow shaft 3 be contacted with draining ring 1, and draining ring 1 and 3 coaxial line of hollow shaft draw
Ring 1 is flowed to be made of brass or bronze；Draining ring 1 makes the remaining electric current flowed through originally from faying face be flowed through from thereon, thus into
One step, which reduces, flows through the electric current of faying face, simultaneously as draining ring 1 and main shaft contact are dissimilar metal contacts, not easy-sintering；
S2, oxidation processes formation oxidation processes face 2 is carried out at the faying face of hollow shaft 3, oxidation processes face 2, which increases, to be combined
The resistance in face reduces calorific value, makes shortage of heat to cause faying face to be sintered, the oxidation film of faying face makes sintering after oxidation processes
Reduced performance；
S3, when needing motor-hollow axle 3 exiting main shaft, first pass through induction heating mode heating 3 outer wall of hollow shaft, it is empty
3 expanded by heating of mandrel, hollow shaft 3 and the cooperation of main shaft become clearance fit, i.e. hollow shaft 3 and main shaft from original interference fit
Faying face separation, finally realize and hollow shaft 3 easily exited into main shaft.
Oxidation processes in the step S2 are blackening process.
Therefore this method significantly reduces the circulating current of hollow shaft and main shaft faying face, makes the possibility of sintering significantly
Reduce, meanwhile, even there are faint weld points, because having larger gap during exiting, weld point will not be caused to exist
More more long-pending, bigger situation during exiting avoids the phenomenon that can not exiting, directly sky is strongly forced unlike conventional
Mandrel exits main shaft, while avoiding faying face surface and pulling.
Claims (2)
1. a kind of method for weakening hollow shaft current and influencing, it is characterised in that：It includes the following steps：
S1, the hollow shaft for taking motor（3）, make hollow shaft（3）With draining ring（1）Contact, the draining ring（1）With hollow shaft
（3）Coaxial line, draining ring（1）It is made of brass or bronze；
S2, in hollow shaft（3）Faying face at carry out oxidation processes and form oxidation processes faces（2）, oxidation processes face（2）Increase knot
The resistance in conjunction face reduces calorific value, makes shortage of heat to cause faying face to be sintered, the oxidation film of faying face makes burning after oxidation processes
Tie reduced performance；
S3, when needing motor-hollow axle（3）When exiting main shaft, induction heating mode heating hollow shaft is first passed through（3）Outer wall, it is empty
Mandrel（3）Expanded by heating, hollow shaft（3）Cooperation with main shaft becomes clearance fit, i.e. hollow shaft from original interference fit（3）
It detaches, is finally realized hollow shaft easily with the faying face of main shaft（3）Exit main shaft.
2. a kind of method for weakening hollow shaft current and influencing according to claim 1, it is characterised in that：The step S2
In oxidation processes be blackening process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611179350.4A CN106787456B (en) | 2016-12-19 | 2016-12-19 | A method of weakening hollow shaft current influences |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611179350.4A CN106787456B (en) | 2016-12-19 | 2016-12-19 | A method of weakening hollow shaft current influences |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106787456A CN106787456A (en) | 2017-05-31 |
| CN106787456B true CN106787456B (en) | 2018-10-30 |
Family
ID=58890597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611179350.4A Active CN106787456B (en) | 2016-12-19 | 2016-12-19 | A method of weakening hollow shaft current influences |
Country Status (1)
| Country | Link |
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| CN (1) | CN106787456B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113686Y (en) * | 2007-06-18 | 2008-09-10 | 祺骅股份有限公司 | Motor shaft grounding screw thread structure |
| CN202150614U (en) * | 2011-07-21 | 2012-02-22 | 深圳市晶沛电子有限公司 | Hollow shaft slip ring |
| CN103516143A (en) * | 2013-10-23 | 2014-01-15 | 中达电机股份有限公司 | Shaft current eliminating device |
| CN105391252A (en) * | 2015-12-21 | 2016-03-09 | 南车株洲电机有限公司 | Unwinding technology and equipment for motor rotor |
| CN205595585U (en) * | 2016-05-04 | 2016-09-21 | 杭州驰宏科技有限公司 | Sliding ring with adjustable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4879249B2 (en) * | 2008-11-19 | 2012-02-22 | 三菱電機株式会社 | Electric motor and air conditioner |
-
2016
- 2016-12-19 CN CN201611179350.4A patent/CN106787456B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113686Y (en) * | 2007-06-18 | 2008-09-10 | 祺骅股份有限公司 | Motor shaft grounding screw thread structure |
| CN202150614U (en) * | 2011-07-21 | 2012-02-22 | 深圳市晶沛电子有限公司 | Hollow shaft slip ring |
| CN103516143A (en) * | 2013-10-23 | 2014-01-15 | 中达电机股份有限公司 | Shaft current eliminating device |
| CN105391252A (en) * | 2015-12-21 | 2016-03-09 | 南车株洲电机有限公司 | Unwinding technology and equipment for motor rotor |
| CN205595585U (en) * | 2016-05-04 | 2016-09-21 | 杭州驰宏科技有限公司 | Sliding ring with adjustable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106787456A (en) | 2017-05-31 |
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