CN103107472A - Processing method of commutator of direct current motor - Google Patents
Processing method of commutator of direct current motor Download PDFInfo
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- CN103107472A CN103107472A CN2013100433944A CN201310043394A CN103107472A CN 103107472 A CN103107472 A CN 103107472A CN 2013100433944 A CN2013100433944 A CN 2013100433944A CN 201310043394 A CN201310043394 A CN 201310043394A CN 103107472 A CN103107472 A CN 103107472A
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- commutator
- tightening
- fixture
- processing
- silica gel
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- Motor Or Generator Current Collectors (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a processing method of a commutator of a direct current motor. An original processing method of assembling first and processing second is changed, the processing of the commutator is firstly carried out, then assembling is carried out, and tightening, heating and the like are carried out through a tightening fixture and constant strength. Silica gel is coated on two end faces of the commutator in a processing process to prevent copper cuttings from entering the commutator in following processing, and the discard as useless of the commutator caused by processing can be avoided.
Description
Technical field
The present invention relates to a kind of processing method, especially a kind of direct current machine collar formula commutator processing method.
Technical background
DC motor commutator is installed on DC motor rotor, the alternating current in armature winding is converted into direct current exports to external circuit, is the critical elements of direct current machine energy converting between mechanical.
DC commutator in the present invention is a kind of collar formula commutator; after being that commutator is machined, the processing method of manufacture process Central Plains employing is press fit on rotor; then carve under turning, groove milling, mica etc.; in the course of processing; due to without any safeguard measure; be easy to cause the copper scale that produces in the course of processing to enter commutator inside, cause short circuit between commutator segment, commutator is scrapped.
Summary of the invention
The purpose of this invention is to provide a kind of commutator processing method, guarantee in the course of processing that copper scale does not enter commutator inside, avoids commutator to scrap.
Technical solution is that described method comprises the following steps:
(1) assembling commutator: assemble by drawing commutator, and clamp nut, Tightening moment is 10Nm;
(2) design and make tightening fixture, described fixture can tighten up the commutator that assembles;
(3) commutator is installed in tightening fixture, then compress tightening fixture, pressure 1MPa on hydraulic press; Clamp nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 140～160 ℃, insulation 1.5～2.5h;
(5) take out commutator from baking oven, be placed on hydraulic press within 1 minute, compress tightening fixture, pressure 1MPa; Clamp nut, Tightening moment 12Nm;
(6) overspeed test: commutator is unloaded from tightening fixture, be placed on and carry out overspeed test on overspeed test bench, test temperature is 140～160 ℃, rotating speed 120000rpm, hypervelocity time 4～6min;
(7) check: the commutator after overspeed test must not be loose, malformation, and the commutator segment circular runout is not more than 0.03mm, if can not set foot in above-mentioned requirements, commutator is scrapped;
(8) silica gel protected: two end faces at commutator are coated with last layer silica gel;
(9) processing commutator: processing commutator is to requiring size;
(10) commutator is press fit on rotor, is coated with last layer silica gel at two end faces of commutator;
(11) fine turning outer circle is to requiring size;
(12) silica gel at cleaning commutator two ends.
The present invention is by first processing commutator and then the mode that press-fits, and two end faces at commutator are coated with silica gel in the course of processing, prevent that in following process, copper scale enters commutator, and the commutator of having avoided processing to cause is scrapped.
Embodiment
Direct current machine collar formula commutator processing method comprises the following steps: (1) assembling commutator: assemble by drawing commutator, and clamp nut, Tightening moment is 10Nm;
(2) design and make tightening fixture, described fixture can tighten up the commutator that assembles;
(3) commutator is installed in tightening fixture, then compress tightening fixture, pressure 1MPa on hydraulic press; Clamp nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 140～160 ℃, insulation 1.5～2.5h;
(5) take out commutator from baking oven, be placed on hydraulic press within 1 minute, compress tightening fixture, pressure 1MPa; Clamp nut, Tightening moment 12Nm;
(6) overspeed test: commutator is unloaded from tightening fixture, be placed on and carry out overspeed test on overspeed test bench, test temperature is 140～160 ℃, rotating speed 120000rpm, hypervelocity time 4～6min;
(7) check: the commutator after overspeed test must not be loose, malformation, and the commutator segment circular runout is not more than 0.03mm, if can not set foot in above-mentioned requirements, commutator is scrapped;
(8) silica gel protected: two end faces at commutator are coated with last layer silica gel;
(9) processing commutator: processing commutator is to requiring size;
(10) commutator is press fit on rotor, is coated with last layer silica gel at two end faces of commutator;
(11) fine turning outer circle is to requiring size;
(12) silica gel at cleaning commutator two ends.
Embodiment
Certain type DC starting generator commutator is made:
(1) assembling commutator: assemble by drawing commutator, and clamp nut, Tightening moment is 10Nm;
(2) design and make tightening fixture, described fixture can tighten up the commutator that assembles;
(3) commutator is installed in tightening fixture, then compress tightening fixture, pressure 1MPa on hydraulic press; Clamp nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 150 ℃, insulation 2h;
(5) take out commutator from baking oven, be placed on hydraulic press within 1 minute, compress tightening fixture, pressure 1MPa; Clamp nut, Tightening moment 12Nm;
(6) overspeed test: commutator is unloaded from tightening fixture, be placed on and carry out overspeed test on overspeed test bench, test temperature is 150 ℃, rotating speed 120000rpm, hypervelocity time 5min;
(7) check: the commutator after overspeed test gets loose, the non-structure distortion, and the commutator segment circular runout is 0.02mm;
(8) silica gel protected: two end faces at commutator are coated with last layer silica gel;
(9) processing commutator: processing commutator is to requiring size;
(10) commutator is press fit on rotor, is coated with last layer silica gel at two end faces of commutator;
(11) fine turning outer circle is to requiring size;
(12) silica gel at cleaning commutator two ends.
Claims (1)
1. a DC motor commutator processing method, is characterized in that, described processing method comprises the following steps:
(1) assembling commutator: assemble by drawing commutator, and clamp nut, Tightening moment is 10Nm;
(2) design and make tightening fixture, described fixture can tighten up the commutator that assembles;
(3) commutator is installed in tightening fixture, then compress tightening fixture, pressure 1MPa on hydraulic press; Clamp nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 140～160 ℃, insulation 1.5～2.5h;
(5) take out commutator from baking oven, be placed on hydraulic press within 1 minute, compress tightening fixture, pressure 1MPa; Clamp nut, Tightening moment 12Nm;
(6) overspeed test: commutator is unloaded from tightening fixture, be placed on and carry out overspeed test on overspeed test bench, test temperature is 140～160 ℃, rotating speed 120000rpm, hypervelocity time 4～6min;
(7) check: the commutator after overspeed test must not be loose, malformation, and the commutator segment circular runout is not more than 0.03mm, if can not satisfy above-mentioned requirements, commutator is scrapped;
(8) silica gel protected: two end faces at commutator are coated with last layer silica gel;
(9) processing commutator: processing commutator is to requiring size;
(10) commutator is press fit on rotor, is coated with last layer silica gel at two end faces of commutator;
(11) fine turning outer circle is to requiring size;
(12) silica gel at cleaning commutator two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310043394.4A CN103107472B (en) | 2013-02-04 | 2013-02-04 | Processing method of commutator of direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310043394.4A CN103107472B (en) | 2013-02-04 | 2013-02-04 | Processing method of commutator of direct current motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103107472A true CN103107472A (en) | 2013-05-15 |
| CN103107472B CN103107472B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310043394.4A Active CN103107472B (en) | 2013-02-04 | 2013-02-04 | Processing method of commutator of direct current motor |
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| CN (1) | CN103107472B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877111A (en) * | 2016-08-23 | 2017-06-20 | 哈尔滨东安发动机（集团）有限公司 | A kind of commutator processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003230255A (en) * | 2002-01-31 | 2003-08-15 | Asmo Co Ltd | Dynamo-electric machine, and method of manufacturing dyanmo-electric machine |
| CN101162824A (en) * | 2007-11-20 | 2008-04-16 | 陈建甫 | Brazing type manufacturing method of flat carbon commutator and products produced thereby |
| CN102255215A (en) * | 2011-04-29 | 2011-11-23 | 万海潮 | Manufacturing process of carbon commutator |
| CN202094464U (en) * | 2011-02-23 | 2011-12-28 | 浙江长城换向器有限公司 | Plastic sheet disposing clamp used for manufacturing commutator |
-
2013
- 2013-02-04 CN CN201310043394.4A patent/CN103107472B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003230255A (en) * | 2002-01-31 | 2003-08-15 | Asmo Co Ltd | Dynamo-electric machine, and method of manufacturing dyanmo-electric machine |
| CN101162824A (en) * | 2007-11-20 | 2008-04-16 | 陈建甫 | Brazing type manufacturing method of flat carbon commutator and products produced thereby |
| CN202094464U (en) * | 2011-02-23 | 2011-12-28 | 浙江长城换向器有限公司 | Plastic sheet disposing clamp used for manufacturing commutator |
| CN102255215A (en) * | 2011-04-29 | 2011-11-23 | 万海潮 | Manufacturing process of carbon commutator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877111A (en) * | 2016-08-23 | 2017-06-20 | 哈尔滨东安发动机（集团）有限公司 | A kind of commutator processing method |
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| Publication number | Publication date |
|---|---|
| CN103107472B (en) | 2015-07-15 |
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