CN203617840U - Speed-regulating generator set - Google Patents
Speed-regulating generator set Download PDFInfo
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- CN203617840U CN203617840U CN201320801694.XU CN201320801694U CN203617840U CN 203617840 U CN203617840 U CN 203617840U CN 201320801694 U CN201320801694 U CN 201320801694U CN 203617840 U CN203617840 U CN 203617840U
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- engine
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- generator
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- driving gear
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- 230000007704 transition Effects 0.000 claims description 27
- 239000000446 fuel Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a generator set, especially belongs to a speed-regulating generator set. The technical scheme adopted by the utility model is that the speed-regulating generator set comprises a generator, an engine speed-regulating device and an engine, and the speed-regulating generator set is characterized in that a speed changer is connected between the generator and the engine. According to the speed-regulating generator set, the engine can work under the optimal rotation rate, and the service life is prolonged; and the smaller engine is adopted under the same power, thus the size of the product is smaller, and the cost is saved; the fuel is saved, and the noise is lower; and the speed-regulating generator set reduces the waste gas exhausted amount, and is more energy saving and environmentally friendly than the conventional generation sets.
Description
Technical field
The utility model is a kind of generating set, especially belongs to velodyne group.
Background technology
According to generator frequency, the relation of rotating speed and magnetic pole logarithm: f=pn/60 wherein P is magnetic pole logarithm, n is rotating speed per minute, f is frequency, be that the generator of 2 (having 4 magnetic poles) is as the generating frequency of its this generator of n=1500r/min: f=pn/60=2x1500/60=50 (Hz) to magnetic field logarithm, the rotating speed of motor is directly proportional to output frequency, because P is definite value, be generally 2 integral multiple, and the design frequency of power consumption equipment is definite value, therefore the rotating speed of generator preferably also can keep definite value, the frequency of generation current machine has two kinds of 50 Hz and 60 Hz, this rotating speed that is to say generator is preferably stabilized in 1500r/min or 1800r/min.For the synchronous generator by driven by engine, as shown in Figure 1, the power shaft of generator 1 is connected with the output shaft of engine 3, because generator is coaxially driven by engine, so the rotating speed of engine also will be stabilized in 1500r/min or 1800r/min, and the rotating speed of engine optimum speed and generator is incomplete same, if the optimum speed in the best performance curve of engine more than 10kw is that 2200r/min is to 2650r/min.The existing synchronous generator by driven by engine all adopts speed regulating device to adjust the rotating speed of engine, as 200910186446 " speed-regulating device of minitype generator set ", 201110450860 " generator electronic speed regulating device and speed regulating method ", in order to meet the rotating speed of generator, engine just cannot be worked under optimum condition, less economical, discharge and being all affected useful life.
Summary of the invention
The deficiency that the utility model exists for prior art, provides a kind of and matches with optimum speed engine, and can change output torque, can meet again the velodyne group of power consumption equipment frequency requirement simultaneously.
The technical scheme that the utility model adopts is a kind of velodyne group, comprises generator, engine governed speed device and engine, and its technical essential is to be connected with speed changer between generator and engine.
Now in technology because originally the experience impact of burning and operating mode of engine exists rotary speed unstabilization fixed, thereby the rotating speed that need to have a set of speed regulating device to stablize engine reaches the object of stable output, therefore be at present all to utilize speed regulating device directly to allow the stabilization of speed of engine to the required rotating speed of generator, and sacrifice the rotating speed of the optimum condition of engine self, the present invention overcomes Traditional Thinking set, on the basis of available engine speed regulating device, increase the speed change between engine and generator, engine and generator can be worked under optimum speed, and the fluctuation of speed that engine causes because of reasons such as combustion instabilities, carry out speed governing by existing engine governed speed device.
The specific design of speed changer can be:
Speed changer is made up of casing, driving gear shaft and driven gear shaft, on driving gear shaft, be fixed with driving gear, on driven gear shaft, be fixed with driven gear, driving gear shaft is connected with engine output shaft, driven gear shaft is connected with the power shaft of generator, and driving gear is meshed with driven gear.
Driving gear and the ratio of driven gear equal the gearratio of speed changer, and the gearratio of speed changer is: engine optimum speed: generator optimum speed.
Carry out speed change by a pair of gear pair, simple in structure, but generator cannot be coaxial with engine, and compared with prior art change is larger, and the length size of generating set all changes possibly.
Speed changer is by casing, driving gear shaft, driven gear shaft and transition axis form, on driving gear shaft, be fixed with driving gear, on driven gear shaft, be fixed with driven gear, transition axis is fixed with First Transition gear, the second transition gear, driving gear shaft is connected with engine output shaft, driven gear shaft is connected with the power shaft of generator, driving gear is meshed with First Transition gear, the second transition gear is meshed with driven gear, the rotation of engine is imported speed changer into by driving gear shaft and is passed to First Transition gear again, the second transition gear, driven gear finally passes to generator.
Between driving gear shaft and driven gear shaft, have a fixed block, have through hole in fixed block, driving gear shaft and driven gear shaft are fixed in through hole by bearing respectively, between two bearings, have dottle pin.
The left and right of engine and generator, upper-lower position are constant like this, identical with existing synchronous generator, engine and generator coaxle, only that length direction increases a speed changer, change little to prior art, the overall dimensions of generating set only length direction changes, and therefore the related accessory such as packing case is changed little.
It is little that speed changer has volume, changes the feature of transmitting torque.Speed changer is to manufacture and design on basis at assembly, has extremely many motor combination, installation form and organization plan, and gearratio classification is fine and closely woven, meets different applying working conditions, realizes electromechanical integration.Speed changer transmission efficiency is high, consumes energy low, and superior performance.
After speed changer transmission, transmission torque=9550* power * gearratio * coefficient of utilization/input speed=engine torque * gearratio * coefficient of utilization.So can drive (power) generator of gearratio multiple with the engine of power after by speed changer, thereby make novel generating set have plurality of advantages than traditional mode.
The beneficial effect that the utility model is obtained is: 1, make to start function to be worked under optimum speed, increase the service life; 2, new-generation unit has adopted less engine under Same Efficieney, thereby makes small product size less, cost-saving; 3, novel electricity generator is more fuel-efficient, noise is less; 4, waste discharge tolerance reduces, than more energy-conserving and environment-protective of tradition.
Accompanying drawing explanation
Fig. 1 is the connected mode schematic diagram of traditional generating set
Fig. 2 is the connected mode schematic diagram of the utility model generating set
Fig. 3 is the structural representation of the utility model embodiment 1 speed changer
Fig. 4 is the structural representation of the utility model embodiment 2 speed changers
Wherein: 1 generator 2 speed changer 21 driving gear shaft 211 driving gear 22 driven gear shaft 221 driven gear 23 transition axis 231 First Transition gear 232 second transition gear 24 casing 3 engine 4 fixed block 41 through hole 42 bearing 43 dottle pins.
Embodiment
below in conjunction with view pairthe utility model is elaborated
It is little that speed changer has volume, changes the feature of transmitting torque.Speed changer is to manufacture and design on basis at assembly, has extremely many motor combination, installation form and organization plan, and gearratio classification is fine and closely woven, meets different applying working conditions, realizes electromechanical integration.Speed changer transmission efficiency is high, consumes energy low, and superior performance.
After speed changer transmission, transmission torque Te=9550* power * gearratio * coefficient of utilization/input speed=engine torque * gearratio * coefficient of utilization.
The output effective power Pe=Ten/9550 (kW) of engine
(wherein: Te-exports effective torque, n-engine speed r/min)
Example: the engine variable speed generation unit of 10KW
Te=9550*10*1.5*1/2250=63.7
Pe＝63.72250／9550(kW)=15KW
A so generator that can drive 15KW of 10KW engine! That is to say that this generating set can adopt less engine under Same Efficieney, thereby make small product size less, cost-saving, and traditional diesel generating set, engine equates substantially with the power of the coupling of generator.
Can drive (power) generator of gearratio multiple with the engine of power after by speed changer, thereby make novel generating set have plurality of advantages than traditional mode.
The above is only preferred implementation of the present utility model, for those skilled in the art, not departing from improvement, replacement and the retouching made in essential scope of the present utility model, also should belong to protection range of the present utility model.
Claims (4)
1. a velodyne group, comprise engine (3), engine governed speed device and generator (1), it is characterized in that: between engine (3) and generator (1), be connected with speed changer (2), described speed changer (2) is by casing (24), driving gear shaft (21) and driven gear shaft (22) form, on driving gear shaft (21), be fixed with driving gear (211), on driven gear shaft (22), be fixed with driven gear (221), driving gear shaft (21) is connected with engine (3) output shaft, driven gear shaft (22) is connected with the power shaft of generator (1), driving gear (211) is meshed with driven gear (221).
2. velodyne group according to claim 1, is characterized in that: the gearratio of speed changer (2) is: engine optimum speed: generator optimum speed.
3. velodyne group according to claim 1, it is characterized in that: speed changer (2) is by casing (24), driving gear shaft (21), driven gear shaft (22) and transition axis (23) form, on driving gear shaft (21), be fixed with driving gear (211), on driven gear shaft (22), be fixed with driven gear (221), transition axis (23) is fixed with First Transition gear (231), the second transition gear (232), driving gear shaft (21) is connected with engine (3) power shaft, driven gear shaft (22) is connected with the output shaft of generator (1), driving gear (211) is meshed with First Transition gear (231), the second transition gear (232) is meshed with driven gear (221), the rotation of engine (3) is imported speed changer (2) into by driving gear shaft (21) and is passed to First Transition gear (231) again, the second transition gear (232), driven gear (221) finally passes to generator (1).
4. velodyne group according to claim 1, it is characterized in that: between driving gear shaft (21) and driven gear shaft (22), have a fixed block (4), in fixed block (4), there is through hole (41), driving gear shaft (21) is fixed in through hole (41) by bearing (42) respectively with driven gear shaft (22), has dottle pin (43) between two bearings (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320801694.XU CN203617840U (en) | 2013-12-09 | 2013-12-09 | Speed-regulating generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320801694.XU CN203617840U (en) | 2013-12-09 | 2013-12-09 | Speed-regulating generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617840U true CN203617840U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320801694.XU Expired - Fee Related CN203617840U (en) | 2013-12-09 | 2013-12-09 | Speed-regulating generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702046A (en) * | 2013-12-09 | 2015-06-10 | 吴迪 | Speed governing generator unit |
| CN108551230A (en) * | 2018-04-26 | 2018-09-18 | 黄山科太环保科技有限公司 | A kind of novel speed regulation device of generating set |
-
2013
- 2013-12-09 CN CN201320801694.XU patent/CN203617840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702046A (en) * | 2013-12-09 | 2015-06-10 | 吴迪 | Speed governing generator unit |
| CN108551230A (en) * | 2018-04-26 | 2018-09-18 | 黄山科太环保科技有限公司 | A kind of novel speed regulation device of generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WU DI Free format text: FORMER OWNER: FUZHOU DIYI INTERNAL COMBUSTION ENGINE MANUFACTURING CO., LTD. Effective date: 20141119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350008 FUZHOU, FUJIAN PROVINCE TO: 350000 FUZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141119 Address after: 350000, 10 village, Taijiang District, Fujian, Fuzhou 708 Patentee after: Wu Di Address before: Ling Ao Feng Lu Cangshan posterior District of Fuzhou City, Fujian province 350008 No. 38 Patentee before: Fuzhou Diyi Interbal Comb Engine Manufacturing Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20191209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |