CN204376561U - 75kW combined generating set - Google Patents
75kW combined generating set Download PDFInfo
- Publication number
- CN204376561U CN204376561U CN201420777333.0U CN201420777333U CN204376561U CN 204376561 U CN204376561 U CN 204376561U CN 201420777333 U CN201420777333 U CN 201420777333U CN 204376561 U CN204376561 U CN 204376561U
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- China
- Prior art keywords
- generator
- generating set
- rotor
- output shaft
- engine
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of 75kW combined generating set, comprise engine and generator, engine is connected by spring coupling with generator, spring coupling has the elastic transmission ring section that a thickness is radially reduced to edge gradually by middle part, the magnetic shoe that rotor comprises armature spindle, rotor core and is fixed on rotor core.The utility model 75kW combined generating set, its rotor adopts magnetic shoe to form rotating magnetic field, relatively with existing rectangular permanent magnet, shared by it, space is less, larger by the magnetic flux density of stator coil, makes generator volume less, generating efficiency is higher, and manufacturing cost is lower; Elastic transmission ring section make spring coupling can Automatic adjusument and compensate manufacture, assembling and driving error, transmission shock is little, strong adaptability, the accuracy of manufacture and assembly difficulty can be reduced simultaneously, improve the assembly working efficiency of Blast Furnace Top Gas Recovery Turbine Unit (TRT), avoid rigging error to cause damage to engine and motor.
Description
Technical field
The utility model relates to a kind of generating equipment, particularly a kind of 75KW combined generating set.
Background technology
Combined generating set is made up of engine and generator two parts, and wherein generator comprises stators and rotators, generator unit stator by stator core, stator winding and support three part form, rotor is made up of armature spindle, rotor core and permanent magnet.Iron core is formed by high permeability material punching overlapping combinations, and the structure of punching directly affects the assembling production efficiency etc. of the efficiency of generator, life-span, performance and motor.
But stator punching of the prior art in the design process general size, the teeth groove only focusing on teeth groove can penetrate coil turn number, and have ignored the ratio of the facewidth and teeth groove degree, and then stator core is caused easily to occur the problem such as magnetic saturation, poor radiation.
And existing 75kW combined generating set, the problems such as its permanent magnet is generally all-in-one-piece rectangular strip structure, and permanent magnet is inserted on rotor core, and it is large that generator exists rotor volume, and magnetic flux density is lower, generating efficiency difference.
In technology, the output shaft of engine is generally connected by rigid flange dish with the armature spindle of generator simultaneously, rigid flange dish does not have the function automatically adapting to rigging error, make power transmission shaft vibrations in transmission process comparatively large, easily occur the problems such as power transmission shaft rapid wear.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of 75kW combined generating set, to solve the problems such as existing 75kW combined generating set volume is large, generating efficiency is low, armature spindle easily damages.
The utility model 75kW combined generating set, comprise engine and generator, described generator comprises rotor and stator, the output shaft of described engine is connected by spring coupling with the armature spindle of generator, described spring coupling comprises input shaft flange plate and output shaft ring flange, described input shaft flange plate coaxially arranges with output shaft ring flange and is fixedly connected with at edge part, described output shaft ring flange has the elastic transmission ring section that a thickness is radially reduced to edge gradually by middle part, the described maximum ga(u)ge of elastic transmission ring section is 4:1 ~ 3:1 with the ratio of minimum thickness,
Be provided with the bellmouth with engine output shaft secure fit in the middle part of described input shaft flange plate, described bellmouth taper seat is provided with annular oil groove; The serves with generator rotor shaft spline fitted is provided with in the middle part of described output shaft ring flange;
The magnetic shoe that described rotor comprises armature spindle, rotor core and is fixed on rotor core, described magnetic shoe is four groups, often organize magnetic shoe and comprise eight blocks of magnetic shoes, and eight blocks of magnetic shoes arranges layout by two row four is fixed on rotor core.
Further, described stator comprises the stator core be made up of some punchings, described punching is provided with coil groove and coil tooth, and described coil tooth is rectangular teeth, and the ratio of the width of coil tooth and the width of coil groove is 0.5 ~ 0.7.
Further, the bottom radius of described coil groove and the ratio of notch radius are 1.25, and the ratio of punching exradius and inner circle radius is 1.6.
Further, the cylindrical edge of described punching is provided with radiating groove.
The beneficial effects of the utility model:
1, the utility model 75kW combined generating set, its rotor adopts magnetic shoe to form rotating magnetic field, relatively with existing rectangular permanent magnet, shared by it, space is less, larger by the magnetic flux density of stator coil, makes generator volume less, generating efficiency is higher, and manufacturing cost is lower.
2, the utility model 75kW combined generating set, the ratio of the width of the width of coil tooth and coil groove controls 0.5 ~ 0.7 by it, make the coil turn in coil groove and reach best of breed state by the magnetic flux of coil tooth, thus eliminate stator core magnetic saturation problem, the width of coil tooth also ensure that it has enough area of dissipations simultaneously, make electrical power generators efficiency higher, longer service life.
3, the utility model 75kW combined generating set, the radiating groove that it is arranged can further improve the heat-sinking capability of stator, extends stator useful life, also can reduce the manufacturing cost of stator simultaneously.
4, the utility model 75kW combined generating set, the thickness of the elastic transmission ring section of output shaft ring flange is reduced to edge gradually by middle part, make it strain can occur under circumferential torsional moment effect, and then make spring coupling can Automatic adjusument and compensate manufacture, assembling and driving error, transmission shock is little, strong adaptability, the accuracy of manufacture and assembly difficulty can be reduced simultaneously, improve the assembly working efficiency of Blast Furnace Top Gas Recovery Turbine Unit (TRT), avoid rigging error to cause damage to engine and motor.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model 75kW combined generating set;
Fig. 2 is the sectional structure schematic diagram of spring coupling;
Fig. 3 is the sectional structure schematic diagram of generator;
Fig. 4 is the perspective view of rotor;
Fig. 5 is the structural representation of stator punching.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment 75kW combined generating set, comprise engine 1 and generator 2, described generator comprises rotor and stator, the output shaft of described engine is connected by spring coupling with the armature spindle of generator, described spring coupling comprises input shaft flange plate 3 and output shaft ring flange 4, described input shaft flange plate coaxially arranges with output shaft ring flange and is fixedly connected with at edge part, described output shaft ring flange has the elastic transmission ring section 41 that a thickness is radially reduced to edge gradually by middle part, the described maximum ga(u)ge of elastic transmission ring section is 4:1 ~ 3:1 with the ratio of minimum thickness,
The bellmouth 31 with engine output shaft secure fit is provided with in the middle part of described input shaft flange plate, described bellmouth taper seat is provided with annular oil groove 32, when keeping in repair by passing into hydraulic oil in annular oil groove 32, oil film can be formed between shaft coupling and engine output shaft, shaft coupling can be pulled down faster and protect engine output shaft not to be damaged; The serves 42 with generator rotor shaft spline fitted is provided with in the middle part of described output shaft ring flange;
The magnetic shoe 7 that described rotor comprises armature spindle 5, rotor core 6 and is fixed on rotor core, described magnetic shoe is four groups, often organize magnetic shoe and comprise eight blocks of magnetic shoes, and eight blocks of magnetic shoes arranges layout by two row four is fixed on rotor core.
The present embodiment 75kW combined generating set, its rotor adopts magnetic shoe to form rotating magnetic field, relatively with existing rectangular permanent magnet, shared by it, space is less, larger by the magnetic flux density of stator coil, makes generator volume less, generating efficiency is higher, and manufacturing cost is lower; The thickness of the elastic transmission ring section of its output shaft ring flange is reduced to edge gradually by middle part simultaneously, make it strain can occur under circumferential torsional moment effect, and then make spring coupling can Automatic adjusument and compensate manufacture, assembling and driving error, transmission shock is little, strong adaptability, the accuracy of manufacture and assembly difficulty can be reduced simultaneously, improve the assembly working efficiency of Blast Furnace Top Gas Recovery Turbine Unit (TRT), avoid rigging error to cause damage to engine and motor.
As the improvement to the present embodiment, described stator comprises the stator core be made up of some punchings 8, described punching is provided with coil groove 9 and coil tooth 10, described coil tooth is rectangular teeth, the ratio of the width of coil tooth and the width of coil groove is 0.5, certainly in different embodiments, the ratio of the width of coil tooth and the width of coil groove also can be other value in 0.5 ~ 0.7 scope, and the quantity of coil groove 5 is 36.The present embodiment 75kW combined generating set, the ratio of the width of the width of coil tooth and coil groove controls 0.5 ~ 0.7 by it, make the coil turn in coil groove and reach best of breed state by the magnetic flux of coil tooth, thus eliminate stator core magnetic saturation problem, the width of coil tooth also ensure that it has enough area of dissipations simultaneously, make electrical power generators efficiency higher, longer service life.
As the improvement to the present embodiment, the bottom radius of described coil groove and the ratio of notch radius are 1.25, and the ratio of punching exradius and inner circle radius is 1.6; Its dimensional structure can ensure that magnetic saturation problem does not appear in stator core, and controls air gap at zone of reasonableness, reduces magnetic resistance, and makes stator volume enough little, makes cost lower.
As the improvement to the present embodiment, the cylindrical edge of described punching is provided with radiating groove 11, and the cooling air that Power generator fan produces cools by radiating groove 11 pairs of stator cores, can improve generator life-span and generating efficiency.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. a 75kW combined generating set, comprises engine and generator, and described generator comprises rotor and stator, it is characterized in that:
The output shaft of described engine is connected by spring coupling with the armature spindle of generator, described spring coupling comprises input shaft flange plate and output shaft ring flange, described input shaft flange plate coaxially arranges with output shaft ring flange and is fixedly connected with at edge part, described output shaft ring flange has the elastic transmission ring section that a thickness is radially reduced to edge gradually by middle part, and the described maximum ga(u)ge of elastic transmission ring section is 4:1 ~ 3:1 with the ratio of minimum thickness;
Be provided with the bellmouth with engine output shaft secure fit in the middle part of described input shaft flange plate, described bellmouth taper seat is provided with annular oil groove; The serves with generator rotor shaft spline fitted is provided with in the middle part of described output shaft ring flange;
The magnetic shoe that described rotor comprises armature spindle, rotor core and is fixed on rotor core, described magnetic shoe is four groups, often organize magnetic shoe and comprise eight blocks of magnetic shoes, and eight blocks of magnetic shoes arranges layout by two row four is fixed on rotor core.
2. 75kW combined generating set according to claim 1, it is characterized in that: described stator comprises the stator core be made up of some punchings, described punching is provided with coil groove and coil tooth, described coil tooth is rectangular teeth, and the ratio of the width of coil tooth and the width of coil groove is 0.5 ~ 0.7.
3. 75kW combined generating set according to claim 2, is characterized in that: the bottom radius of described coil groove and the ratio of notch radius are 1.25, and the ratio of punching exradius and inner circle radius is 1.6.
4. 75kW combined generating set according to claim 2, is characterized in that: the cylindrical edge of described punching is provided with radiating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777333.0U CN204376561U (en) | 2014-12-10 | 2014-12-10 | 75kW combined generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777333.0U CN204376561U (en) | 2014-12-10 | 2014-12-10 | 75kW combined generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376561U true CN204376561U (en) | 2015-06-03 |
Family
ID=53332739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420777333.0U Expired - Fee Related CN204376561U (en) | 2014-12-10 | 2014-12-10 | 75kW combined generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460193A (en) * | 2019-08-09 | 2019-11-15 | 泰安阳光动力电机有限公司 | A kind of generator and oil machine integral type unit |
-
2014
- 2014-12-10 CN CN201420777333.0U patent/CN204376561U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460193A (en) * | 2019-08-09 | 2019-11-15 | 泰安阳光动力电机有限公司 | A kind of generator and oil machine integral type unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20191210 |