CN114189116B - Protection method for armature hollow shaft during insulation treatment - Google Patents
Protection method for armature hollow shaft during insulation treatment Download PDFInfo
- Publication number
- CN114189116B CN114189116B CN202111381120.7A CN202111381120A CN114189116B CN 114189116 B CN114189116 B CN 114189116B CN 202111381120 A CN202111381120 A CN 202111381120A CN 114189116 B CN114189116 B CN 114189116B
- Authority
- CN
- China
- Prior art keywords
- armature
- hollow shaft
- silica gel
- solid silica
- motor
- 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.)
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Links
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 39
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000741 silica gel Substances 0.000 claims abstract description 38
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 38
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 239000003973 paint Substances 0.000 claims abstract description 14
- 238000007598 dipping method Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 229920002379 silicone rubber Polymers 0.000 abstract description 4
- 239000004945 silicone rubber Substances 0.000 abstract 2
- 239000002966 varnish Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/10—Applying solid insulation to windings, stators or rotors
- H02K15/105—Applying solid insulation to windings, stators or rotors to the windings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a protection method for an armature hollow shaft during insulation treatment, which comprises the following steps: 1) The motor armature is cleaned up, and both ends of the hollow shaft are blocked by adopting solid silica gel I and solid silica gel II respectively. 2) The armature of the motor is placed in an oven at 120 ℃ and preheated for 3 hours, and moisture and volatile matters in the armature are removed. 3) And (3) placing the motor armature in a vacuum paint dipping cylinder, and performing insulation treatment after the armature is cooled to 50-70 ℃. 4) And cleaning the motor armature assembly surface. 5) And (3) placing the motor armature in a baking oven at 120 ℃, heating to 140+/-5 ℃ along with the oven, and preserving heat for more than 6 hours. 6) And (3) pulling out the solid silica gel I and the solid silica gel II, and cleaning up paint traces on the motor armature assembly surface. According to the invention, the bearing holes at the two ends of the armature hollow shaft are protected by the silicone rubber plug, the silicone rubber plug is pulled out after paint dipping and cleaning, and then the armature hollow shaft is dried, so that the armature hollow shaft is suitable for the matching part of the hollow shaft; meanwhile, the method is practical and convenient, and solves the problem that the armature hollow shaft is difficult to clean.
Description
Technical Field
The invention relates to a protection method for an armature hollow shaft during insulation treatment.
Background
The insulation of the motor serves to isolate the conductive loops, the most important part of which comprises the insulation of the armature coils and the winding heads, by means of an insulating varnish impregnation treatment, but since the subsequent assembly is affected by the insulating varnish attached to the ends of the armature shaft, it is necessary to clean the insulating varnish on the ends of the armature shaft.
The armature shaft of the motor is a solid shaft or a hollow shaft, the armature is insulated and then the shaft end is cleaned in time, but the hollow shaft has the problems of small aperture, large depth, difficult cleaning and the like, and the insulating paint on the hollow shaft cannot be thoroughly cleaned by adopting a conventional cleaning mode, so that the armature shaft is inclined and damaged during subsequent assembly.
Disclosure of Invention
The invention aims to provide a protection method for an armature hollow shaft during insulation treatment, so as to solve the problem that the armature hollow shaft is difficult to clean.
The technical scheme adopted for realizing the purpose of the invention is that the protection method for the armature hollow shaft during insulation treatment comprises the following steps:
1) Protecting a hollow shaft in a motor armature: the motor armature is cleaned up, and both ends of the hollow shaft are blocked by adopting solid silica gel I and solid silica gel II respectively.
2) Preheating: and placing the motor armature in an oven at 120 ℃ for preheating for 3 hours, and removing moisture and volatile matters in the armature.
3) Insulation treatment: and placing the motor armature into a vacuum paint dipping cylinder, and performing insulation treatment after the armature is cooled to 50-70 ℃.
4) Cleaning: and cleaning the motor armature assembly surface.
5) Curing: and (3) placing the motor armature in a baking oven at 120 ℃, heating to 140+/-5 ℃ along with the oven, and preserving heat for more than 6 hours.
6) Cleaning: and pulling out the solid silica gel I and the solid silica gel II, and cleaning up paint traces on the motor armature assembly surface.
Further, the motor armature includes a commutator, a hollow shaft, inter-slot insulation, and winding elements.
Further, step 1) is provided with a step of coating silicone grease on the inner wall of the hollow shaft near the two ends of the hollow shaft before the solid silica gel I and the solid silica gel II are installed.
Further, the solid silica gel I and the solid silica gel II are both in a round table shape.
The technical effect of the invention is that the invention adopts the silicon rubber plug to protect the bearing holes at the two ends of the armature hollow shaft, the silicon rubber plug is pulled out after paint dipping and cleaning, and then the drying is carried out, thus being applicable to the matching part of the hollow shaft; meanwhile, the method is practical and convenient, and solves the problem that the armature hollow shaft is difficult to clean.
Drawings
FIG. 1 is a schematic illustration of an armature of an electric motor;
FIG. 2 is a schematic illustration of a solid silica gel I;
FIG. 3 is a schematic illustration of solid silica gel II;
FIG. 4 is a schematic illustration of solid silica gel I and solid silica gel II blocking the two ends of the hollow shaft, respectively.
In the figure: commutator 1, hollow shaft 2, insulation 3 between the grooves, winding element 4, solid silica gel I5 and solid silica gel II 6.
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Example 1:
the embodiment discloses a protection method for an armature hollow shaft during insulation treatment, which comprises the following steps:
1) The hollow shaft 2 in the armature of the motor is protected: the motor armature is cleaned up, silicone grease is smeared on the inner wall of the hollow shaft 2 close to the two ends of the hollow shaft, see fig. 4, and the two ends of the hollow shaft 2 are respectively plugged by adopting solid silica gel I5 and solid silica gel II 6. Referring to fig. 1, the motor armature comprises a commutator 1, a hollow shaft 2, an inter-slot insulation 3 and a winding element 4. Referring to fig. 2 and 3, the solid silica gel i 5 and the solid silica gel ii 6 are both in the shape of a truncated cone.
2) Preheating: and placing the motor armature in an oven at 120 ℃ for preheating for 3 hours, and removing moisture and volatile matters in the armature.
3) Insulation treatment: and placing the motor armature into a vacuum paint dipping cylinder, and performing insulation treatment after the armature is cooled to 50-70 ℃.
4) Cleaning: and cleaning the motor armature assembly surface.
5) Curing: and (3) placing the motor armature in a baking oven at 120 ℃, heating to 140+/-5 ℃ along with the box, preserving heat for more than 6 hours, and taking out when a paint film is hot and dry and is not sticky.
6) Cleaning: and pulling out the solid silica gel I5 and the solid silica gel II 6, and cleaning up paint traces on the motor armature assembly surface.
Example 2:
the embodiment discloses a protection method for an armature hollow shaft during insulation treatment, which comprises the following steps:
1) The hollow shaft 2 in the armature of the motor is protected: clean up motor armature, see fig. 4, and plug up the both ends of hollow shaft 2 respectively with solid silica gel I5 and solid silica gel II 6.
2) Preheating: and placing the motor armature in an oven at 120 ℃ for preheating for 3 hours, and removing moisture and volatile matters in the armature.
3) Insulation treatment: and placing the motor armature into a vacuum paint dipping cylinder, and performing insulation treatment after the armature is cooled to 50-70 ℃.
4) Cleaning: and cleaning the motor armature assembly surface.
5) Curing: and (3) placing the motor armature in a baking oven at 120 ℃, heating to 140+/-5 ℃ along with the oven, and preserving heat for more than 6 hours.
6) Cleaning: and pulling out the solid silica gel I5 and the solid silica gel II 6, and cleaning up paint traces on the motor armature assembly surface.
Example 3:
the main steps of this embodiment are the same as those of embodiment 2, further referring to fig. 1, the motor armature comprises a commutator 1, a hollow shaft 2, an inter-slot insulation 3 and a winding element 4.
Example 4:
The main steps of this embodiment are the same as those of embodiment 2, and further, step 1) further comprises the step of coating silicone grease on the inner walls of the hollow shaft 2 near both ends thereof before the solid silica gel I5 and the solid silica gel II 6 are installed.
Example 5:
the main steps of this embodiment are the same as those of embodiment 2, further referring to fig. 2 and 3, the solid silica gel i 5 and the solid silica gel ii 6 are both in a truncated cone shape.
Claims (3)
1. A protection method for an armature hollow shaft during insulation treatment is characterized in that: the method comprises the following steps:
1) Protecting a hollow shaft (2) in the motor armature: cleaning up motor armatures, and smearing silicone grease on the inner walls of the two ends of the hollow shaft (2); the two ends of the hollow shaft (2) are respectively blocked by adopting solid silica gel I (5) and solid silica gel II (6);
2) Preheating: placing the motor armature in a baking oven at 120 ℃ for preheating for 3 hours, and removing water and volatile matters in the armature;
3) Insulation treatment: placing the motor armature into a vacuum paint dipping cylinder, and performing insulation treatment when the armature is cooled to 50-70 ℃;
4) Cleaning: cleaning the motor armature assembly surface:
5) Curing: placing the motor armature in a baking oven at 120 ℃, heating to 140+/-5 ℃ along with the oven, and preserving heat for more than 6 hours;
6) Cleaning: and pulling out the solid silica gel I (5) and the solid silica gel II (6), and cleaning up paint traces on the motor armature assembly surface.
2. The method for protecting the hollow armature shaft during insulation treatment according to claim 1, wherein the method comprises the following steps: the motor armature comprises a commutator (1), a hollow shaft (2), an inter-slot insulation (3) and a winding element (4).
3. The method for protecting the hollow armature shaft during insulation treatment according to claim 1, wherein the method comprises the following steps: the solid silica gel I (5) and the solid silica gel II (6) are both in a round table shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381120.7A CN114189116B (en) | 2021-11-20 | 2021-11-20 | Protection method for armature hollow shaft during insulation treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381120.7A CN114189116B (en) | 2021-11-20 | 2021-11-20 | Protection method for armature hollow shaft during insulation treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114189116A CN114189116A (en) | 2022-03-15 |
| CN114189116B true CN114189116B (en) | 2024-08-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111381120.7A Active CN114189116B (en) | 2021-11-20 | 2021-11-20 | Protection method for armature hollow shaft during insulation treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114189116B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451936A (en) * | 2015-08-13 | 2017-02-22 | 卡特彼勒公司 | Electric motor and process for making an electric motor |
| CN109194063A (en) * | 2018-09-04 | 2019-01-11 | 上海电动工具研究所（集团）有限公司 | The rotor insulating treatment process and equipment of energy-efficient photo-thermal dual curable |
| CN112510945A (en) * | 2020-12-22 | 2021-03-16 | 上海电气集团上海电机厂有限公司 | Protection device and protection method for vacuum pressure paint dipping of motor with cavity |
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| GB190821936A (en) * | 1908-10-16 | 1909-06-24 | Albert Henry Midgley | Improvements in Direct Current Dynamo Electric Machinery. |
| DE102012007232B4 (en) * | 2012-04-07 | 2014-03-13 | Susanne Weller | Method for producing rotating electrical machines |
| CN104851530A (en) * | 2015-05-11 | 2015-08-19 | 江苏东佳电气有限公司 | Device for preventing insulation paint from penetrating into cable |
| CN206126626U (en) * | 2016-09-21 | 2017-04-26 | 苏州市张桥五金有限公司 | Hollow step axle subassembly |
| CN106549541B (en) * | 2016-12-08 | 2019-03-05 | 贵州航天林泉电机有限公司 | A kind of high-temperature electric machine armature insulation treatment process |
| DE102017001939A1 (en) * | 2017-02-28 | 2018-08-30 | copperING GmbH | Apparatus for the trickle impregnation of a stator or armature of an electric machine |
| CN108631515B (en) * | 2018-05-08 | 2021-12-07 | 清华大学 | High-power-density inner rotor cooling liquid self-circulation motor |
| CN110539771A (en) * | 2018-06-25 | 2019-12-06 | 中车长春轨道客车股份有限公司 | Dustproof axletree and rail train |
| CN110690799A (en) * | 2019-08-29 | 2020-01-14 | 苏州巨峰电气绝缘系统股份有限公司 | Motor winding energization heating rotary paint dipping equipment and paint dipping process thereof |
| CN210944323U (en) * | 2019-10-28 | 2020-07-07 | 中国能源建设集团广西水电工程局有限公司 | Brushless cable reel |
| CN111600451A (en) * | 2020-06-08 | 2020-08-28 | 哈尔滨电气动力装备有限公司 | Exciter armature coil-inserting and paint-dipping tool device for synchronous motor |
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2021
- 2021-11-20 CN CN202111381120.7A patent/CN114189116B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451936A (en) * | 2015-08-13 | 2017-02-22 | 卡特彼勒公司 | Electric motor and process for making an electric motor |
| CN109194063A (en) * | 2018-09-04 | 2019-01-11 | 上海电动工具研究所（集团）有限公司 | The rotor insulating treatment process and equipment of energy-efficient photo-thermal dual curable |
| CN112510945A (en) * | 2020-12-22 | 2021-03-16 | 上海电气集团上海电机厂有限公司 | Protection device and protection method for vacuum pressure paint dipping of motor with cavity |
Also Published As
| Publication number | Publication date |
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| CN114189116A (en) | 2022-03-15 |
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