CN202550853U - Electric shovel direct current motor with concentric compensation winding - Google Patents
Electric shovel direct current motor with concentric compensation winding Download PDFInfo
- Publication number
- CN202550853U CN202550853U CN201220109011XU CN201220109011U CN202550853U CN 202550853 U CN202550853 U CN 202550853U CN 201220109011X U CN201220109011X U CN 201220109011XU CN 201220109011 U CN201220109011 U CN 201220109011U CN 202550853 U CN202550853 U CN 202550853U
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- winding
- compensation winding
- direct current
- compensation
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Abstract
The utility model provides an electric shovel direct current motor with a concentric compensation winding, and belongs to the technical field of motors. According to the electric shovel direct current motor, four sets of winding-molded concentric compensation windings are connected in series inside a motor, and are connected in series with an amature and a communtation winding, and the compensation winding has few connecting points and stable structure, uniform and reasonable current density and good electric performance; and the compensation winding is wound by flat copper wires, and the insulation structure of the compensation winding has good heat resistance.
Description
Affiliated technical field
Belong to technical field of motors, relate to a kind of power shovel direct current machine that adopts concentric type compensation winding.
Background technology
At present; Adopt the power shovel of DC electrical system; Its direct current machine generally adopts bar formula compensation winding, and the compensation winding construction compensates winding, compensation winding connecting line, the bolt of fixed compensation winding, the outer field insulating sleeve of bolt, compensation winding inter-turn insulation spacer, the insulation of compensation winding inter-turn etc. by motor and constitutes.Bar formula motor compensation winding is made up of 48 compensation bars; 4 cover compensation windings weld with compensation winding connecting line respectively, fix with bolt then, and its skin has the bolt sleeve with winding insulation; The connection line end separates with the insulation spacer between winding and a fixation; With armature winding, switching-over windings in series, under any load, can both offset armature reaction MMF simultaneously, eliminate the distortion of field.Though bar formula compensation winding manufacture craft is easy, in running,, cause this current density big because there is screw in compensation winding connecting portion; Mechanical oscillation simultaneously are prone to make the outer field insulating sleeve wearing and tearing of bolt; Thereby it is loosening to produce machinery, cause snap, faults such as scaling loss, fracture take place frequently, and cause compensating winding interturn short-circuit; The motor reliability service is worked the mischief, have great hidden danger of quality.
Summary of the invention
The purpose of the utility model provides a kind of power shovel direct current machine that adopts concentric type compensation winding construction; Make compensation winding line end current density reasonable; Winding construction is firm; Eliminate compensation winding overhang tie point hidden danger of quality defective, improve power shovel equipment safety operation efficient, reduce the plant maintenance cost of overhaul.
The utility model solves the technical scheme that its technical problem adopted: on the structure; Change power shovel direct current machine bar formula compensation winding into concentric type compensation winding; Adopted the concentric type compensation winding of 4 moulding to substitute former formula compensation winding; Eliminated the loaded down with trivial details syndeton of bar formula compensation winding, its firm structure is applicable to industrial and mineral production environment condition more; Concentric type compensation winding material adopt 3 and around flat type copper wire substitute the single bare copper strip of former formula compensation winding, be convenient to solve the moulding problem of concentric type compensation winding, improved insulation system also is beneficial to the winding heat radiation simultaneously; After the transformation; Compensating tank still is 16; On each main pole iron core 4; Every cover concentric type compensation winding is that 12 circles on average are placed in 4 main pole iron cores of every utmost point, and the winding two ends compensate winding and commutating pole down with adjacent main pole respectively and are connected, the structure that formation armature winding, switching-over winding, compensation winding are connected; The groove of remaining silent that compensating tank on the main pole iron core adopts bar formula compensation winding changes the open slot that concentric type compensation winding adopts into.On the compensation design of Windings, according to compensation design of Windings principle, confirm that the compensation winding current equates with armature supply, according to compensation design of Windings principles of selected current density, confirm the compensation winding wire diameter; Finally compensate the winding rule and accomplish transformation according to concentric type compensation winding construction and data creating formed coil.
The beneficial effect of the utility model is, adopts the power shovel direct current machine of concentric type compensation winding construction, and its compensation winding construction is firm; Connected mode is simple; Current density is reasonable, eliminates unborn motor quality hidden danger, reduces electric fault; Improve power shovel equipment safety operation efficient, reduce the plant maintenance cost of overhaul.
Description of drawings
Fig. 1 is single sleeve forming concentric type compensation winding construction sketch map;
Fig. 2 is the concentric type compensation winding profile that embeds in single main pole iron core;
Fig. 3 is the opening line embedding groove sketch map on the single main pole iron core;
Fig. 4 is the expanded view of concentric type compensation winding;
Among the figure: 1. the main pole utmost point palm, 2. concentric type compensation winding, the 3. commutating pole utmost point palm, 4. switching-over winding, 5. concentric type compensation winding terminal, 6-iron core, 7-compensation winding magnetic wire, 8-excitation wire bag, 9-opening line embedding groove, 10-external power supply, 11-connect armature.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described further.
Embodiment 1
As shown in Figure 1; The moulding of single cover concentric type winding integral manufacturing; The compensation winding line global design that will be equal to single formula compensation winding before transforming and be equal to before transforming is made into moulding concentric type compensation winding 2; Thoroughly eliminated 96 tie points of former formula compensation winding, only reserved 8 concentric type compensation winding terminals 5, be used for 42 of cover concentric type compensation windings and connect and connect with switching-over winding 4.Excitation wire bag 8 is wrapped on the main pole utmost point palm 1, sets up the direct current machine main flux; Switching-over winding 4 is wrapped sets up the direct current machine commutating field on the commutating pole palm 3, can improve the spark that is caused by the electric current switching-over on the DC motor commutator; In the big capacity and the heavy direct current machine of working, the compensation winding is set; Compensation winding magnetic wire 7 embeds in the equally distributed opening line embedding groove 9 of special punching out on the main pole utmost point palm 1; Connect with armature 11; Compensation winding magnetomotive force is opposite with armature magnetomotive force, guarantees under any loading condition, can offset armature magnetomotive force at any time, thereby reduces the air-gap field distortion that is caused by armature reaction.
For the ease of the making of moulding concentric type compensation winding 2, with single turn bar formula compensation winding bare copper strip transform as 3 of single turns and around compensation winding magnetic wire 7, increased insulation system, also promoted the heat-dissipating space of winding, excitation wire bag 8 is constant, sees Fig. 2.
For ease of motor compensation winding rule, transform the line embedding groove of remaining silent on the iron core 6 as opening line embedding groove 9, as shown in Figure 3.
After improved concentric type compensated winding 2 and switching-over winding 4, armature 11 are connected, external power supply 10 was seen Fig. 4.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and modification, these improvement and modification also should be regarded as the protection range of the utility model.
Claims (2)
1. a power shovel direct current machine that adopts concentric type compensation winding compensates winding, armature, the connection of switching-over windings in series, it is characterized in that: motor adopts concentric type compensation winding construction, is connected in series with armature, the winding that commutates after the 4 sleeve forming concentric types compensation windings in series.
2. the power shovel direct current machine of employing concentric type compensation winding according to claim 1 is characterized in that: adopt the concentric type compensation winding of 4 sleeve formings, compensation winding contact is 8; Concentric type compensation winding adopt 3 and around flat type copper wire coiling moulding; Compensating tank adopts open slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220109011XU CN202550853U (en) | 2012-03-22 | 2012-03-22 | Electric shovel direct current motor with concentric compensation winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220109011XU CN202550853U (en) | 2012-03-22 | 2012-03-22 | Electric shovel direct current motor with concentric compensation winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550853U true CN202550853U (en) | 2012-11-21 |
Family
ID=47171416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220109011XU Expired - Lifetime CN202550853U (en) | 2012-03-22 | 2012-03-22 | Electric shovel direct current motor with concentric compensation winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286291A (en) * | 2017-07-21 | 2019-01-29 | 深圳市配天电机技术有限公司 | Electric vehicle, wheel and its switched reluctance machines |
-
2012
- 2012-03-22 CN CN201220109011XU patent/CN202550853U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286291A (en) * | 2017-07-21 | 2019-01-29 | 深圳市配天电机技术有限公司 | Electric vehicle, wheel and its switched reluctance machines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |