CN114050690A - Hand-held type copper bar tight device that expands - Google Patents
Hand-held type copper bar tight device that expands Download PDFInfo
- Publication number
- CN114050690A CN114050690A CN202111420316.2A CN202111420316A CN114050690A CN 114050690 A CN114050690 A CN 114050690A CN 202111420316 A CN202111420316 A CN 202111420316A CN 114050690 A CN114050690 A CN 114050690A
- Authority
- CN
- China
- Prior art keywords
- positioning block
- copper bar
- punch
- rotor core
- adapter
- 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.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 31
- 239000010949 copper Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
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
- H02K15/0025—Shaping or compacting conductors or winding heads after the installation of the winding in the core or machine ; Applying fastening means on winding heads
- H02K15/005—Shaping or compacting conductors or winding heads after the installation of the winding in the core or machine ; Applying fastening means on winding heads by means of electrodynamic forces
-
- 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
- H02K15/06—Embedding prefabricated windings in machines
- H02K15/062—Windings in slots; salient pole windings
- H02K15/063—Windings for large electric machines, e.g. bar windings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Induction Machinery (AREA)
Abstract
The invention relates to a handheld copper bar expansion device, wherein an arc surface at the lower part of a positioning block (1) is assembled with an excircle of a rotor core (9), limiting wedges (6) are arranged at two sides of the positioning block (1), the limiting wedges (6) are in sliding fit in a gap between the rotor core (9) and the upper end of a copper bar (10), an open slot (11) in the rotor core (9) is in clearance fit with a narrow edge of the limiting wedge (6) in the positioning block (1), the upper end of a punch (2) is welded and fixed with an adapter (7), a handheld electric hammer (8) is fixedly connected with the adapter (7) in a clamping manner through a quick clamp (12), and the cross section of the middle part of the punch (2) is square. The invention can greatly reduce the labor intensity of workers when the large-scale motor rotor copper bar is subjected to the expansion process, and simultaneously avoids the situation that the outer circle surface of the rotor iron core is injured by a hammer in the knocking process due to human factors by utilizing the positioning function of the tool.
Description
Technical Field
The invention relates to a handheld copper bar expansion device.
Background
After the rotor copper bar is inserted into the rotor iron core, in order to eliminate the gap between the copper bar and the rotor iron core groove in the width direction, the copper bar is knocked by a punch at the position of the rotor iron core opening groove, the copper bar is knocked by the punch to form a groove, the width size of the upper end of the copper bar is increased, and the purpose of supporting the copper bar in the rotor iron core groove is realized; the second method is to utilize a sleeping car to match with a rolling cutter to perform the expansion operation of the copper bar, the method has the advantages that the manual operation is avoided, the working efficiency is high, but due to the size of a motor, a plurality of large motor rotors cannot complete the operation on a machine tool, the third method is realized through a special rolling machine, the method is mainly used for batch production, the equipment investment cost is high, and the method cannot be applied to the condition that the copper bar can not be repaired and replaced and the equipment cannot be installed.
The invention content is as follows:
the invention aims to provide a handheld copper bar expansion device, wherein a handheld electric hammer is connected with a punch, the punch is positioned with a rotor core through a positioning block and a limiting wedge block, the punch is pushed to strike the copper bar by using the handheld electric hammer as power, the width direction of the copper bar is expanded, and the purpose that the copper bar is tightly supported in a rotor core groove is achieved. The technical scheme of the invention is as follows: a hand-held copper bar expansion device is characterized in that an arc surface at the lower part of a positioning block (1) is assembled with an outer circle of a rotor core (9), limiting wedges (6) are arranged on two sides of the positioning block (1), the limiting wedges (6) are in sliding fit in a gap between the rotor core (9) and the upper end of a copper bar (10), an open slot (11) in the rotor core (9) is in clearance fit with a narrow edge of the limiting wedge (6) in the positioning block (1), the upper end of a punch (2) is welded and fixed with an adapter (7), a hand-held electric hammer (8) is fixedly connected with the adapter (7) through a quick clamp (12), the cross section of the middle part of the punch (2) is square, the middle part of the punch (2) is in clearance fit with a sunken platform (13) part of the positioning block (1), four screws (3) penetrate through counter bores in the punch (2) and a pressure spring (4) and are fixedly connected with the positioning block (1) through threads, the punch (2) and the positioning block (1), and the pressure spring (4) is positioned between the positioning block (1), a cushion pad (5) is arranged between the punch (2) and the positioning block (1)
The invention has the working principle and beneficial technical effects that:
as shown in figure 1, the invention is assembled with the excircle of a rotor core (9) through the lower arc surface of a positioning block (1), and limiting wedges are arranged on two sides of the positioning block (1)
(6) Positioning block (1) can slide in rotor core (9) and the clearance of copper bar (10) upper end, thickness dimension and rotor core (9) open slot (11) width dimension clearance fit of spacing wedge (6) and positioning block (1) junction, thereby retrain and fix a position drift (2) at rotor core (9) circumferencial direction, guarantee drift (2) and strike the position all at rotor core (9) open slot (11) at every turn, avoid gouging rotor core (9) excircle, drift (2) upper end and adapter (7) welded fastening, adapter
(7) Be connected with handheld electric hammer (8), the effort of handheld electric hammer (8) passes through adapter (7) and drift (2) transmission, direct action is on copper bar (10), drift (2) middle part is square, the heavy platform size clearance fit of square outer expanding size and locating piece (1), thereby the movement track of locating piece (1) and drift (2) has been retrained, four screws (3) are passed counter bore and pressure spring (4) on drift (2) and are fixed with locating piece (1), pressure spring (4) are located between drift (2) and locating piece (1), the resilience effort that drift (2) lasts is provided, and set up blotter (5) between drift (2) and locating piece (1), reduce the vibrations that the impact produced.
According to the invention, the hand-held copper bar expansion device is utilized, so that the labor intensity of workers in the expansion process of the copper bar of the large-scale motor rotor can be greatly reduced, and the condition that the outer circle surface of the rotor iron core is injured by a hammer in the knocking process due to human factors is avoided by utilizing the positioning function of the tool.
The working process of the invention is as follows:
slide into rotor core (9) open slot (11) from one end with spacing wedge (6), be connected adapter (7) and handheld electric hammer (8) fixedly, the power is pushed down when starting handheld electric hammer (8), drift (2) will be in succession to copper bar (10) impact this moment, after the impact reaches assigned position, drift (2) will contact with blotter (5), the effort of handheld electric hammer (8) will be transmitted to rotor core (9) excircle surface through locating piece (1), can feel obvious difference from the vibration feedback of sound and handheld electric hammer (8), this moment copper bar (10) expand tight the operation and accomplish, with locating piece (1) along axial slip to next copper bar (10) the tight position that expands, repeat the same operation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
Detailed Description
As shown in fig. 1, a hand-held type copper bar tight device that expands, the circular arc face of 1 lower part of locating piece is in the same place with rotor core 9 excircle fit, locating piece 1 both sides are provided with spacing wedge 6, spacing wedge 6 is in rotor core 9 and the clearance sliding fit of 10 upper ends of copper bar, open slot 11 on the rotor core 9 is clearance fit with the 6 narrow sides of spacing wedge on the locating piece 1, 2 upper ends of drift and adapter 7 welded fastening, handheld electric hammer 8 presss from both sides tight fixed connection through fast 12 and adapter 7 clamp, 2 middle parts of drift are square, square external expanding size and the heavy platform 13 size clearance fit of locating piece 1, four screws 3 pass the counter bore on 2 and pressure spring 4 is fixed with locating piece 1, pressure spring 4 is located between drift 2 and locating piece 1, provide the effort that drift 2 lasts, and set up blotter 5 between drift 2 and locating piece 1, reduce the vibrations that the impact produced.
Claims (1)
1. The utility model provides a hand-held type copper bar tight device that expands which characterized by: the lower arc surface of a positioning block (1) is assembled with the excircle of a rotor core (9), two sides of the positioning block (1) are provided with limiting wedges (6), the limiting wedges (6) are in sliding fit in a gap between the rotor core (9) and the upper end of a copper bar (10), an open slot (11) on the rotor core (9) is in clearance fit with the narrow edge of the limiting wedge (6) on the positioning block (1), the upper end of a punch (2) is welded and fixed with an adapter (7), a handheld electric hammer (8) is fixedly connected with the adapter (7) through a quick clamp (12), the cross section of the middle part of the punch (2) is square, the middle part of the punch (2) is in clearance fit with a sinking platform (13) part of the positioning block (1), four screws (3) penetrate through counter bores on the punch (2) and are fixedly connected with the positioning block (1) through threads of a pressure spring (4), the pressure spring (4) is positioned between the punch (2) and the positioning block (1), a cushion pad (5) is arranged between the punch (2) and the positioning block (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111420316.2A CN114050690B (en) | 2021-11-26 | 2021-11-26 | Handheld copper bar expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111420316.2A CN114050690B (en) | 2021-11-26 | 2021-11-26 | Handheld copper bar expanding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114050690A true CN114050690A (en) | 2022-02-15 |
| CN114050690B CN114050690B (en) | 2024-02-20 |
Family
ID=80211159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111420316.2A Active CN114050690B (en) | 2021-11-26 | 2021-11-26 | Handheld copper bar expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114050690B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3134683U (en) * | 2007-06-06 | 2007-08-23 | 正峰工業股▲ふん▼有限公司 | High torque impact structure of power tools |
| JP2009254065A (en) * | 2008-04-03 | 2009-10-29 | Honda Motor Co Ltd | Apparatus for manufacturing rotor for rotating electrical machine |
| CN106026542A (en) * | 2016-08-04 | 2016-10-12 | 中车戚墅堰机车有限公司 | Alternating current traction motor rotor guide strip tensioning tool and method thereof |
| CN206216620U (en) * | 2016-12-01 | 2017-06-06 | 缙云县阪喜达包装有限公司 | A kind of hardware hammer |
| CN208557374U (en) * | 2018-07-26 | 2019-03-01 | 重庆升益机电设备有限公司 | A kind of electric hammer of against shock |
| CN210447064U (en) * | 2019-03-14 | 2020-05-05 | 吴昌松 | Medical percussion hammer with adjustable impact force |
| CN111185880A (en) * | 2020-03-18 | 2020-05-22 | 陈俭生 | Small double-head electric impact drill |
| CN113489248A (en) * | 2021-07-02 | 2021-10-08 | 哈尔滨电气动力装备有限公司 | Motor copper bar expansion tool |
| CN113550696A (en) * | 2021-07-26 | 2021-10-26 | 中煤科工集团西安研究院有限公司 | Drill bit with axial rock breaking function |
-
2021
- 2021-11-26 CN CN202111420316.2A patent/CN114050690B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3134683U (en) * | 2007-06-06 | 2007-08-23 | 正峰工業股▲ふん▼有限公司 | High torque impact structure of power tools |
| JP2009254065A (en) * | 2008-04-03 | 2009-10-29 | Honda Motor Co Ltd | Apparatus for manufacturing rotor for rotating electrical machine |
| CN106026542A (en) * | 2016-08-04 | 2016-10-12 | 中车戚墅堰机车有限公司 | Alternating current traction motor rotor guide strip tensioning tool and method thereof |
| CN206216620U (en) * | 2016-12-01 | 2017-06-06 | 缙云县阪喜达包装有限公司 | A kind of hardware hammer |
| CN208557374U (en) * | 2018-07-26 | 2019-03-01 | 重庆升益机电设备有限公司 | A kind of electric hammer of against shock |
| CN210447064U (en) * | 2019-03-14 | 2020-05-05 | 吴昌松 | Medical percussion hammer with adjustable impact force |
| CN111185880A (en) * | 2020-03-18 | 2020-05-22 | 陈俭生 | Small double-head electric impact drill |
| CN113489248A (en) * | 2021-07-02 | 2021-10-08 | 哈尔滨电气动力装备有限公司 | Motor copper bar expansion tool |
| CN113550696A (en) * | 2021-07-26 | 2021-10-26 | 中煤科工集团西安研究院有限公司 | Drill bit with axial rock breaking function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114050690B (en) | 2024-02-20 |
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