CN103107472B - Processing method of commutator of direct current motor - Google Patents
Processing method of commutator of direct current motor Download PDFInfo
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- CN103107472B CN103107472B CN201310043394.4A CN201310043394A CN103107472B CN 103107472 B CN103107472 B CN 103107472B CN 201310043394 A CN201310043394 A CN 201310043394A CN 103107472 B CN103107472 B CN 103107472B
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- commutator
- tightening
- fixture
- processing
- silica gel
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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, and being that direct current exports to external circuit by the AC conversion in armature winding, 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; the processing method of former employing is press fit on rotor after being machined by commutator in the fabrication process; then carve under turning, groove milling, mica; in the course of processing; due to without any safeguard measure; be easy to cause the copper scale produced in the course of processing to enter commutator inside, cause short circuit between commutator segment, commutator is scrapped.
Summary of the invention
The object of this invention is to provide a kind of commutator processing method, ensure that in the course of processing, copper scale does not enter commutator inside, avoids commutator to scrap.
Technical solution is, described method comprises the following steps:
(1) commutator is assembled: assemble commutator by drawing, and clamp nut, Tightening moment is 10Nm;
(2) design and manufacture tightening fixture, the commutator assembled can tighten up by described fixture;
(3) commutator is installed in tightening fixture, then compress tightening fixture on a hydraulic press, pressure 1MPa; Clamp nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 140 ~ 160 DEG C, insulation 1.5 ~ 2.5h;
(5) from baking oven, take out commutator, put within 1 minute on a hydraulic press, compress tightening fixture, pressure 1MPa; Clamp nut, Tightening moment 12Nm;
(6) overspeed test: unloaded from tightening fixture by commutator, is placed on overspeed test bench and carries out overspeed test, and test temperature is 140 ~ 160 DEG C, rotating speed 120000rpm, hypervelocity time 4 ~ 6min;
(7) check: the commutator after overspeed test must not be loose, malformation, and commutator segment circular runout is not more than 0.03mm, if can not set foot in above-mentioned requirements, then commutator is scrapped;
(8) silica gel protected: to be coated with last layer silica gel at two end faces of commutator;
(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 commutator two ends is cleared up.
The present invention by first processing commutator and then the mode that press-fits, and is coated with silica gel at two of commutator end faces in the course of processing, prevents copper scale in following process from entering commutator, avoids to process the commutator caused and scrap.
Embodiment
Direct current machine collar formula commutator processing method comprises the following steps: (1) assembling commutator: assemble commutator by drawing, and clamp nut, and Tightening moment is 10Nm;
(2) design and manufacture tightening fixture, the commutator assembled can tighten up by described fixture;
(3) commutator is installed in tightening fixture, then compress tightening fixture on a hydraulic press, pressure 1MPa; Clamp nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 140 ~ 160 DEG C, insulation 1.5 ~ 2.5h;
(5) from baking oven, take out commutator, put within 1 minute on a hydraulic press, compress tightening fixture, pressure 1MPa; Clamp nut, Tightening moment 12Nm;
(6) overspeed test: unloaded from tightening fixture by commutator, is placed on overspeed test bench and carries out overspeed test, and test temperature is 140 ~ 160 DEG C, rotating speed 120000rpm, hypervelocity time 4 ~ 6min;
(7) check: the commutator after overspeed test must not be loose, malformation, and commutator segment circular runout is not more than 0.03mm, if can not set foot in above-mentioned requirements, then commutator is scrapped;
(8) silica gel protected: to be coated with last layer silica gel at two end faces of commutator;
(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 commutator two ends is cleared up.
Embodiment
Certain type DC starting generator commutator manufactures:
(1) commutator is assembled: assemble commutator by drawing, and clamp nut, Tightening moment is 10Nm;
(2) design and manufacture tightening fixture, the commutator assembled can tighten up by described fixture;
(3) commutator is installed in tightening fixture, then compress tightening fixture on a hydraulic press, pressure 1MPa; Clamp nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 150 DEG C, insulation 2h;
(5) from baking oven, take out commutator, put within 1 minute on a hydraulic press, compress tightening fixture, pressure 1MPa; Clamp nut, Tightening moment 12Nm;
(6) overspeed test: unloaded from tightening fixture by commutator, is placed on overspeed test bench and carries out overspeed test, and test temperature is 150 DEG C, rotating speed 120000rpm, hypervelocity time 5min;
(7) check: the commutator after overspeed test obtains loose, non-structure is out of shape, and commutator segment circular runout is 0.02mm;
(8) silica gel protected: to be coated with last layer silica gel at two end faces of commutator;
(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 commutator two ends is cleared up.
Claims (1)
1. a DC motor commutator processing method, is characterized in that, described processing method comprises the following steps:
(1) commutator is assembled: assemble commutator by drawing, and clamp nut, Tightening moment is 10Nm;
(2) design and manufacture tightening fixture, the commutator assembled can tighten up by described fixture;
(3) commutator is installed in tightening fixture, then compress tightening fixture on a hydraulic press, pressure 1MPa; Fastening described nut, Tightening moment 10Nm;
(4) commutator is put into baking oven together with tightening fixture, be warmed up to 140 ~ 160 DEG C, insulation 1.5 ~ 2.5h;
(5) from baking oven, take out commutator, put within 1 minute on a hydraulic press, compress tightening fixture, pressure 1MPa; Fastening described nut, Tightening moment 12Nm;
(6) overspeed test: unloaded from tightening fixture by commutator, is placed on overspeed test bench and carries out overspeed test, and test temperature is 140 ~ 160 DEG C, rotating speed 120000rpm, hypervelocity time 4 ~ 6min;
(7) check: the commutator after overspeed test must not be loose, malformation, and commutator segment circular runout is not more than 0.03mm, if can not meet above-mentioned requirements, then commutator is scrapped;
(8) silica gel protected: to be coated with last layer silica gel at two end faces of commutator;
(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 commutator two ends is cleared up.
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 CN103107472A (en) | 2013-05-15 |
| CN103107472B true 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 |
Country Status (1)
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| CN (1) | CN103107472B (en) |
Families Citing this family (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 |
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| Publication number | Publication date |
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| CN103107472A (en) | 2013-05-15 |
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