CN101635485A - Integrated hydraulically-driven asynchronous generator - Google Patents
Integrated hydraulically-driven asynchronous generator Download PDFInfo
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- CN101635485A CN101635485A CN200910101911A CN200910101911A CN101635485A CN 101635485 A CN101635485 A CN 101635485A CN 200910101911 A CN200910101911 A CN 200910101911A CN 200910101911 A CN200910101911 A CN 200910101911A CN 101635485 A CN101635485 A CN 101635485A
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Abstract
The invention discloses an integrated hydraulically-driven asynchronous generator which comprises a motor shell (25), a rotating shaft (24), a cylinder body (23), a motor rotor (32) and a motor stator (27), wherein the right side of the cylinder body (23) is tightly attached to an oil distribution disk (20), and the left side of the cylinder body (23) is provided with an inclined disk (3); a plunger hole (37) is arranged in the cylinder body (23), the head part (35) of a plunger (8) positioned in the plunger hole (37) is rotatably connected with a slide shoe (6), and the slide shoe (6) is tightly attached to the inclined disk (3); an oil inlet (15a) on an oil-pass joint block (16), an oil inlet passage in a right end cover (17) and an oil inlet window on the oil distribution disk (20) are communicated in sequence; and an oil outlet (15b) on the oil-pass joint block (16), an oil outlet passage in the right end cover (17) and an oil outlet window on the oil distribution disk (20) are communicated in sequence. The asynchronous generator is used for converting hydraulic energy into electric energy.
Description
Technical field
The present invention relates to hydraulic technique and asynchronous generator, the hydraulic pressure that relates in particular to a kind of integrated form can arrive the conversion equipment of electric energy.
Background technology
The conversion of adopting hydraulic motor-driving generator realization hydraulic pressure can arrive electric energy can obtain good application in many occasions, such as the potential energy recovery of hybrid power engineering machinery, open-air power supply, wind power generation etc.Be recovered as example with hybrid power engineering machinery potential energy, hydraulic motor and generator are installed in the oil return line of system, when swing arm is transferred, the return oil pressure that potential energy forms rotates by hydraulic motor-driving generator, the electric energy that adopts energy storage equipment storage generators such as electric capacity or battery to send then, thus can convert hydraulic pressure to electric energy.At present, this Blast Furnace Top Gas Recovery Turbine Unit (TRT) is generally connected to form by discrete hydraulic motor, shaft coupling and generator coaxle, but the weight of this installation compound mode and take up room all greatlyyer is not suitable for the mobile device as engineering machinery.And, because hydraulic motor has outrigger shaft, may there be external leakage.
Summary of the invention
The technical problem to be solved in the present invention provides the asynchronous generator that a kind of integrated hydraulic drives, and it can reduce the weight and volume of whole hydraulic generating set, improves mechanical efficiency, can also guarantee to have simultaneously excellent control performances.
In order to solve the problems of the technologies described above, the invention provides the asynchronous generator that a kind of integrated hydraulic drives, comprise electric machine casing, fixedly install left end cap and right end cap respectively in the both sides of electric machine casing, the rotating shaft and the electric machine casing that run through electric machine casing are rotatedly connected; Be provided with the cylinder body of open circles column type in electric machine casing, cylinder body is sleeved on the outer surface of rotating shaft, and oil distribution casing is close on the right side of cylinder body, in the left side of cylinder body swash plate is set; In cylinder body, be provided with 7 or 9 plunger holes that run through cylinder body, be equipped with the plunger that links to each other with the slip of the inner surface of plunger hole sealing in each plunger hole; The head and the piston shoes of plunger are rotatedly connected, and piston shoes are close to the inclined-plane of swash plate and are slided along the inclined-plane of swash plate; Outer ring at cylinder body is provided with rotor, and the motor stator that has stator winding is sleeved on the outside of rotor; Logical oily joint piece and right end cap are fixedly linked, be respectively equipped with oil-in and oil-out on the logical oily joint piece, be respectively equipped with oil inlet passage and oil discharge passage in the right end cap, oil-feed window and fuel-displaced window are set respectively on the oil distribution casing, oil-in on the logical oily joint piece, the oil inlet passage in the right end cap and the oil-feed window on the oil distribution casing are connected successively, and the oil-out on the logical oily joint piece, the oil discharge passage in the right end cap and the fuel-displaced window on the oil distribution casing are connected successively.
The improvement of the asynchronous generator that drives as integrated hydraulic of the present invention: uniform rotor bar in the rotor, the both sides end face of rotor respectively has an end ring.
The further improvement of the asynchronous generator that drives as integrated hydraulic of the present invention: be provided with left bearing in left end cap, be provided with right bearing in right end cap, the two ends, the left and right sides of rotating shaft link to each other with right bearing with left bearing respectively.
The further improvement of the asynchronous generator that drives as integrated hydraulic of the present invention: the head and the piston shoes of plunger are hinged, and the outer surface of piston shoes links to each other with the backhaul dish, and ball pivot and backhaul dribbling face are hinged; In the gap between rotating shaft and cylinder body inner ring push rod and retracting spring are set, the two ends of push rod are being supported retracting spring and ball pivot respectively, thereby make piston shoes be close to the inclined-plane of swash plate.
The further improvement of the asynchronous generator that drives as integrated hydraulic of the present invention: electric machine casing is provided with terminal box, and the lead of stator winding is introduced in the terminal box.
The further improvement of the asynchronous generator that drives as integrated hydraulic of the present invention: also be provided with drain tap on the electric machine casing.
The asynchronous generator that integrated hydraulic of the present invention drives, with discrete axial plunger type motor with asynchronous generator organic integration be in the same place, save shaft coupling, rotor is fixedlyed connected by spline with cylinder body, utilize the cylinder body of hydraulic-driven and rotor one, thereby directly can convert hydraulic pressure to electric energy.
The present invention compares with background technology, has following beneficial effect:
This integrated hydraulic drive asynchronous generator with discrete axial plunger type motor with asynchronous generator organic integration be in the same place, save shaft coupling, not only make the hydraulic generating set compact conformation, weight and taking up room all reduces greatly, and can save material, reduce whole cost.The present invention can be directly changed into electric energy with hydraulic pressure, and transmission link in the middle of removing also removes pair of bearings simultaneously, so have higher mechanical efficiency.Because of the integrated back of hydraulic motor and generator moment of inertia reduces greatly, can obtain the better dynamic response again.The present invention does not have outrigger shaft, and sealing is reliable, can avoid external leakage.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the sectional structure schematic diagram of the asynchronous generator of integrated hydraulic driving of the present invention;
Fig. 2 is the profile that A-A cuts open among Fig. 1;
Among the figure: 1, left end cap, 2, left bearing, 3, swash plate, 4, pin, 5, terminal box, 6, piston shoes, 7, the backhaul dish, 8, plunger, 9, push rod, 10, spring base, 11, packing ring, 12, back-up ring, 13, pin, 14, drain tap, 15a, oil-in, 15b, oil-out, 16, logical oily joint piece, 17, right end cap, 18, sealing ring, 19, right bearing, 20, oil distribution casing, 21, retracting spring, 22, base, 23, cylinder body, 24, rotating shaft, 25, electric machine casing, 26, rotor bar, 27, motor stator, 28, stator winding, 29, ball pivot, 30, screw, 31, end ring, 32, rotor, 33, the inclined-plane, 34, passage, 35, head, 36, hydraulic oil channel, 37, plunger hole, 38, screw, 39, sealing ring.
Embodiment
Fig. 1～Fig. 2 comprises base 22 and the electric machine casing 25 that is arranged on the base 22 in conjunction with having provided the asynchronous generator that a kind of integrated hydraulic drives, and fixedly installs left end cap 1 and right end cap 17 respectively in the both sides of electric machine casing 25; Be respectively equipped with cylinder body 23, rotating shaft 24, swash plate 3, oil distribution casing 20 etc. at electric machine casing 25.Electric machine casing 25 is provided with terminal box 5, also is provided with drain tap 14 on electric machine casing 25.
Left end cap 1 is fixedly linked by screw 30 and electric machine casing 25, between left end cap 1 and electric machine casing 25 sealing ring 39 is set; Right end cap 17 is fixedly linked by screw 38 and electric machine casing 25, between right end cap 17 and electric machine casing 25 sealing ring 18 is set.Be respectively equipped with oil inlet passage and oil discharge passage in the right end cap 17.In left end cap 1, be provided with left bearing 2, in right end cap 17, be provided with right bearing 19, run through electric machine casing 25 rotating shaft 24 left end by axle sleeve link to each other with left bearing 2, right-hand member links to each other with right bearing 19 by axle sleeve; The axial line overlaid of the axial line of rotating shaft 24 and electric machine casing 25.
Be provided with the cylinder body 23 that is the open circles column type in electric machine casing 25, this cylinder body 23 is sleeved on the outer surface of rotating shaft 24, and cylinder body 23 and rotating shaft 24 are fixedly linked by spline; The inner ring of cylinder body 23 (being inner surface) keeps certain clearance with the outer surface of rotating shaft 24.In the left side of cylinder body 23 swash plate 3 is set, this swash plate 3 is fixedly linked by pin 4 and left end cap 1; On the right side of cylinder body 23 oil distribution casing 20 is set, this oil distribution casing 20 is fixedly linked by pin 13 and right end cap 17, and oil distribution casing 20 is close to the right side of cylinder body 23.Be respectively equipped with oil-feed window and oil return window on the oil distribution casing 20.
9 plunger holes 37 that axially run through cylinder body 23 evenly are set in cylinder body 23, be equipped with a plunger 8 that can horizontally slip along the inner surface of plunger hole 37 in each plunger hole 37, plunger 8 relies on the hydraulic oil in the mating surface to realize sealing with the inner surface of plunger hole 37.The head 35 of the sphere of each plunger 8 is hinged with the spherical recess on the corresponding piston shoes 6, uniform 9 circular holes on the backhaul dish 7, so the upper end of each piston shoes 6 all is sleeved in the circular hole of backhaul dish 7, thus piston shoes 6 and backhaul dish 7 are fixedly linked.Ball pivot 29 is hinged with form and backhaul dish 7 that sphere cooperates.Therefore, cylinder body 23 1 sides are pasted mutually with oil distribution casing 20, and opposite side pastes with swash plate 3 mutually by the cooperation of plunger 8, piston shoes 6, ball pivot 29, backhaul dish 7.
Be provided with hydraulic oil channel 36 in plunger 8, this hydraulic oil channel 36 forms a damping hole at head 35 places of plunger 8; Be provided with passage 34 in piston shoes 6, make the gap between the inclined-plane 33 of piston shoes 6 and swash plate 31 form damping, above-mentioned damping hole and damping constitute Type B hydraulic pressure half-bridge, form the FEEDBACK CONTROL effect of piston shoes 6 end cavity pressure.Oil in the plunger hole 37 are flowed through behind the hydraulic oil channel 36, and the mating surface of plunger 8 heads 35 with piston shoes 6 is lubricated and seals; Above-mentioned oil is more further by behind the passage 34, and the mating surface on piston shoes 6 and swash plate 3 inclined-planes 33 is lubricated and seals.
The outer ring of cylinder body 23 is surrounded by the rotor 32 of annular, and rotor 32 is fixedlyed connected with cylinder body 23 by spline; Uniform some rotor bars 26 in this rotor 32, the both sides end face of rotor 32 respectively has an end ring 31; The effect of end ring 31 is that rotor bar 26 is connected to form short-circuited conducting sleeve, thereby constitutes rotor circuit.The encirclement rotor 32 of motor stator 27 concentrics of annular, this motor stator 27 is fixedly linked with the inner surface of electric machine casing 25; Stator winding 28 is embedded in the motor stator 27.The lead of stator winding 28 is introduced in the terminal box 5.
Logical oily joint piece 16 is fixedly linked with right end cap 17, and logical oily joint piece 16 is provided with oil-in 15a and oil-out 15b.Oil-in 15a on the logical oily joint piece 16, the oil inlet passage in the right end cap 17 and the oil-feed window on the oil distribution casing 20 are connected successively, and the oil-out 15b on the logical oily joint piece 16, the oil discharge passage in the right end cap 17 and the fuel-displaced window on the oil distribution casing 20 are connected successively.In cylinder body 23 rotation processes, 9 plunger holes 37 have 4 or 5 plunger holes 37 to be connected with oil-feed window on the oil distribution casing 20, and remaining plunger hole 37 is connected with fuel-displaced window on the oil distribution casing 20.The plunger hole 37 that is connected with oil-feed window on the oil distribution casing 20 is called the high pressure chest plunger hole, and the plunger hole 37 that is connected with fuel-displaced window on the oil distribution casing 20 is called the low-pressure cavity plunger hole.
The asynchronous generator that integrated hydraulic of the present invention drives is arranged on rotor 32 on the cylinder body 23 along with rotating shaft 24 together rotate, thus the rotor of formation generator.
The asynchronous generator operation principle that integrated hydraulic of the present invention drives is as follows:
On the one hand, after the oil-in 15a on the logical oily joint piece 16 connected high-voltage oil liquid, fluid entered the oil-feed window of oil distribution casing 20 through the oil-in 15a of logical oily joint piece 16, the oil inlet passage of right end cap 17 successively, flows into the high pressure chest plunger hole of cylinder body 23 then again; Because the effect of hydraulic oil makes that the plunger 8 in the high pressure chest plunger hole is ejected (promptly the inclined-plane 33 towards swash plate 3 moves).On the other hand, the plunger 8 in the low-pressure cavity plunger hole is contracted, and low pressure fluid is successively through the oil return window of valve plate 20, the oil discharge passage of right end cap 17, the oil-out 15b oil return of logical oily joint piece 16.Every plunger hole 37 interior fluid periodically switch in high pressure chest, low-pressure cavity, thus the process of the oil-feed of execution cycle property, oil return.
Because the effect of high-low pressure fluid, the reaction force of 3 pairs of cylinder bodies 23 of swash plate forms unbalanced driving moment, drives cylinder body 23 rotations.In the rotary movement, piston shoes 6 are done the slip of elliptical orbit on the inclined-plane 33 of swash plate 3, and plunger 8 is done straight reciprocating motion with respect to cylinder body 23 in plunger hole 37, when in the plunger hole 37 during logical hydraulic oil, and plunger 8 outwards move (being ejected); When in the plunger hole 37 during logical low pressure oil, plunger 8 move inwards (being contracted).Rotor 32 on the cylinder body 23, after cylinder body 23 rotations,, will produce induced electromotive force in the stator winding 28 of motor stator 27 according to electromagnetic induction principle, and pass through to produce induced current after terminal box 5 links to each other with load, thereby realize the direct conversion that hydraulic pressure can arrive electric energy.
In running, plunger 8 and plunger hole 37, the inclined-plane 33 of piston shoes 6 and swash plate 3, there is leakage inevitably in friction pair between cylinder body 23 and the valve plate 20, for fear of electric machine casing 25 inner fluid hypertonia, need in time the fluid that leaks to be discharged outside the electric machine casing 25, drain tap 14 promptly is used for discharging and leaks fluid.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (6)
1, a kind of asynchronous generator of integrated hydraulic driving, comprise electric machine casing (25), it is characterized in that: fixedly install left end cap (1) and right end cap (17) respectively in the both sides of electric machine casing (25), the rotating shaft (24) that runs through electric machine casing (25) is rotatedly connected with electric machine casing (25); Be provided with the cylinder body (23) of open circles column type in electric machine casing (25), described cylinder body (23) is sleeved on the outer surface of rotating shaft (24), and oil distribution casing (20) is close on the right side of cylinder body (23), in the left side of cylinder body (23) swash plate (3) is set; In cylinder body (23), be provided with 7 or 9 plunger holes (37) that run through cylinder body (23), be equipped with the plunger (8) that links to each other with the slip of the inner surface of plunger hole (37) sealing in each plunger hole (37); The head (35) of plunger (8) and piston shoes (6) are rotatedly connected, and piston shoes (6) are close to the inclined-plane (33) of swash plate (3) and are slided along the inclined-plane (33) of swash plate (3); In the outer ring of cylinder body (23) rotor (32) is set, the motor stator (27) that has stator winding (28) is sleeved on the outside of rotor (32); Logical oily joint piece (16) is fixedly linked with right end cap (17), be respectively equipped with oil-in (15a) and oil-out (15b) on the logical oily joint piece (16), right end cap is respectively equipped with oil inlet passage and oil discharge passage in (17), oil-feed window and fuel-displaced window are set respectively on the oil distribution casing (20), oil-in (15a) on the logical oily joint piece (16), oil inlet passage in the right end cap (17) and the oil-feed window on the oil distribution casing (20) are connected successively, the oil-out (15b) on the logical oily joint piece (16), oil discharge passage in the right end cap (17) and the fuel-displaced window on the oil distribution casing (20) are connected successively.
2, the asynchronous generator of integrated hydraulic driving according to claim 1, it is characterized in that: uniform rotor bar (26) in the described rotor (32), the both sides end face of rotor (32) respectively has an end ring (31).
3, the asynchronous generator of integrated hydraulic driving according to claim 1 and 2, it is characterized in that: in left end cap (1), be provided with left bearing (2), be provided with right bearing (19) in right end cap (17), the two ends, the left and right sides of rotating shaft (24) link to each other with right bearing (19) with left bearing (2) respectively.
4, the asynchronous generator of integrated hydraulic driving according to claim 3, it is characterized in that: the head (35) of plunger (8) is hinged with piston shoes (6), and the outer surface of piston shoes (6) links to each other with backhaul dish (7), and ball pivot (29) is hinged with backhaul dish (7) sphere; In the gap between rotating shaft (24) and cylinder body (23) inner ring push rod (9) and retracting spring (21) are set, the two ends of push rod (9) are being supported retracting spring (21) and ball pivot (29) respectively, thereby make piston shoes (6) be close to the inclined-plane (33) of swash plate (3).
5, the asynchronous generator of integrated hydraulic driving according to claim 4, it is characterized in that: electric machine casing (25) is provided with terminal box (5), and the lead of stator winding (28) is introduced in the terminal box (5).
6, the asynchronous generator of integrated hydraulic driving according to claim 5 is characterized in that: also be provided with drain tap (14) on the electric machine casing (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101019112A CN101635485B (en) | 2009-08-24 | 2009-08-24 | Integrated hydraulically-driven asynchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101019112A CN101635485B (en) | 2009-08-24 | 2009-08-24 | Integrated hydraulically-driven asynchronous generator |
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| Publication Number | Publication Date |
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| CN101635485A true CN101635485A (en) | 2010-01-27 |
| CN101635485B CN101635485B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101019112A Expired - Fee Related CN101635485B (en) | 2009-08-24 | 2009-08-24 | Integrated hydraulically-driven asynchronous generator |
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| CN (1) | CN101635485B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527438A (en) * | 2012-07-04 | 2014-01-22 | 北京精密机电控制设备研究所 | Integrated motor pump for hydraulic system |
| CN107559170A (en) * | 2017-10-16 | 2018-01-09 | 青岛大学 | A kind of squirrel-cage mechanical electronic hydraulic integrated power device |
| CN107587992A (en) * | 2017-10-16 | 2018-01-16 | 青岛大学 | A kind of DC stator excitation-type mechanical electronic hydraulic coupler |
| CN107630798A (en) * | 2017-10-16 | 2018-01-26 | 青岛大学 | A kind of variable displacement AC synchronous mechanical electronic hydraulic coupler |
| CN111255626A (en) * | 2020-04-04 | 2020-06-09 | 赵学清 | Hydraulic generator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3613623B2 (en) * | 1997-01-06 | 2005-01-26 | 愛知機械工業株式会社 | Actuator for hydraulic master cylinder |
| DE19959022C1 (en) * | 1999-12-08 | 2001-06-21 | Bosch Gmbh Robert | Drive unit for hydraulic pressure source e.g. for automobile servo steering system, has electric motor enclosed by separate motor hood anchored to flange plate of pressure source |
| JP4259995B2 (en) * | 2003-12-11 | 2009-04-30 | 大洋化学株式会社 | Small hydroelectric generator |
| CN100559025C (en) * | 2007-09-19 | 2009-11-11 | 丹纳森工程装备（杭州）有限公司 | Hydraulic pressure generating system |
-
2009
- 2009-08-24 CN CN2009101019112A patent/CN101635485B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527438A (en) * | 2012-07-04 | 2014-01-22 | 北京精密机电控制设备研究所 | Integrated motor pump for hydraulic system |
| CN103527438B (en) * | 2012-07-04 | 2016-06-01 | 北京精密机电控制设备研究所 | A kind of integrate motor pump for hydraulic efficiency system |
| CN107559170A (en) * | 2017-10-16 | 2018-01-09 | 青岛大学 | A kind of squirrel-cage mechanical electronic hydraulic integrated power device |
| CN107587992A (en) * | 2017-10-16 | 2018-01-16 | 青岛大学 | A kind of DC stator excitation-type mechanical electronic hydraulic coupler |
| CN107630798A (en) * | 2017-10-16 | 2018-01-26 | 青岛大学 | A kind of variable displacement AC synchronous mechanical electronic hydraulic coupler |
| CN107630798B (en) * | 2017-10-16 | 2023-08-18 | 青岛大学 | Variable alternating current synchronous electromechanical liquid coupler |
| CN107587992B (en) * | 2017-10-16 | 2023-09-15 | 青岛大学 | DC stator excitation type electromechanical liquid coupler |
| CN111255626A (en) * | 2020-04-04 | 2020-06-09 | 赵学清 | Hydraulic generator |
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| CN101635485B (en) | 2011-09-28 |
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