CN102606435A - Wind generating set and hydraulic pump aggregate thereof - Google Patents
Wind generating set and hydraulic pump aggregate thereof Download PDFInfo
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- CN102606435A CN102606435A CN2012100912770A CN201210091277A CN102606435A CN 102606435 A CN102606435 A CN 102606435A CN 2012100912770 A CN2012100912770 A CN 2012100912770A CN 201210091277 A CN201210091277 A CN 201210091277A CN 102606435 A CN102606435 A CN 102606435A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The invention discloses a hydraulic pump aggregate, which comprises a front end cap (1), a rear end cap (2), a piston cylinder and a rotating shaft (3). The rotating shaft comprises a symmetric shaft (31) and at least two eccentric shafts (32), the eccentric shafts (32) are axially arrayed along the symmetric shaft (31), projections of the eccentric shafts (32) in a radial plane of the symmetric shaft (31) are peripherally distributed uniformly, a group of plunger cavities (41) is formed in an inner cavity of the piston cylinder relative to each eccentric shaft (32), a plunger component capable of reciprocating is arranged in each plunger cavity (41), the other ends of the plunger components are attached on the outsides of the eccentric shafts (32), and the plunger components can rotate relatively. On the one hand, parts can be universal in different power modes due to the proper structural design of the hydraulic pump aggregate, so that modular production is realized, and on the other hand, power shunt can be easily realized.
Description
Technical field
The present invention relates to technical field of transmission, particularly a kind of oil hydraulic pump group.In addition, the invention still further relates to a kind of wind power generating set that comprises this oil hydraulic pump group.
Background technique
There is more than 100 year till now although invent the first typhoon power generator group from Denmark; The composition and the arrangement of nearly many decades wind power generating set Transmitted chains but do not have basic change, are basically: the composition of impeller+main shaft+step-up gear+coupling+generator and arrangement.But along with the separate unit installed power is increasing, the step-up gear volume is also increasing, structural design also becomes increasingly complex.Structural design particularly; When power when not being very big (the unit electric motor power generally is no more than 2 megawatts), step-up gear common structural the most is designed to the structural design of one-level NGW Gear Planet Transmission (sun gear floating load balancing)+secondary driving of parallel axes and the structural design of two-stage NGW Gear Planet Transmission+one-level driving of parallel axes; When power further increases again; Step-up gear adopts one-level NW Gear Planet Transmission (gear ring floating load balancing+sun gear floating load balancing)+one-level driving of parallel axes usually or adopts the structural design of secondary NGW Gear Planet Transmission+one-level parallel axes; The power of this structural design is general all less than 4 megawatts; Reason is: the blade of impeller front end with wind energy transformation after kinetic energy (moment of torsion) pass to step-up gear through main shaft; The low-speed big input shaft of step-up gear is rigidly connected with main shaft, the little torque output shaft of high speed of step-up gear is connected through coupling with generator, also is rigidly connected.From the kinetic energy of impeller input wind power speed-increasing gear-box is through transforming the wind energy of back varying load; Moment of torsion is also unstable under the unsettled situation of speed; Therefore; Along with change of wind velocity can cause irregular impact to the step-up gear middle gear, make gear get into fatigue state too early and then do not reach predicted life.
At present; Countries in the world are the share of plunder wind power plant owner's complete machine order; Fall over each other to develop or developing the above high-power wind-driven generator group of separate unit electric motor power 5 megawatts; At this moment, each step-up gear design manufacturer almost all adopts the structural design of " differential " train, and this structural design is very complicated; Need consider not only how power circuit in the differential gear train distributes, the calculating of the correction method of gear-profile and teeth directional and the best amount of repairing, also to consider to design than NGW or the more complicated load balancing structure of NW Gear Planet Transmission; And in the using process of step-up gear, because gear engagement belongs to the rigidity contact, so the sudden change meeting of wind speed impacts to whole wind-force generating set, power generating quality also can be affected.For this reason, now a lot of wind power equipment designs, manufacturing firm begin to consider or just carrying out at Application Research hydraulic pressure speeder the speedup of wind power generating set.
But; Current, hydraulic equipment Specialty Design both domestic and external manufacturing firm is not a wind-powered electricity generation industry designing high-power oil hydraulic pump, and its design, tandem product of producing be the radial plunger type oil hydraulic pump normally; Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of radial plunger type oil hydraulic pump of existing technology.
As shown in Figure 1; This oil hydraulic pump of the prior art comprise stator 1 ', plunger 2 ', plunger cylinder 3 ', oil distributing shaft 4 ' and oil distributing shaft auxiliary 5 '; Oil distributing shaft auxiliary 5 ' with oil distributing shaft 4 ' cavity be separated to form low pressure oil suction chamber 6 ' with high pressure go out oil pocket 7 '; Its working principle is: as shown in Figure 1 under the effect of external force moment of torsion, and plunger cylinder 3 ' and oil distributing shaft 4 ' rotate counterclockwise; Protruding under action of centrifugal force with the plunger 2 of low pressure oil suction chamber 6 ' be communicated with ' two plungers 2 of below (be in '), low pressure oil is sucked in the plunger cavity at its place; Simultaneously; Go out the plunger 2 that oil pocket is communicated with ' two plungers 2 of top (be in ') along with rotation with high pressure; Stator 1 ' the effect of inwall under, inwardly stretch into, thus with the high pressure oil in the plunger chamber be pressed into high pressure go out oil pocket 7 '; High pressure oil and then go out oil pocket 7 ' middle derivation by this high pressure, thus realized that kinetic energy is to the hydraulic pressure transformation of energy.
Yet above-mentioned pluger type hydraulic pump of the prior art is according to having following defective:
At first, pluger type hydraulic pump can not be realized modularization production.Particularly; The size of component such as its needed stator of the pluger type hydraulic pump of different capacity, plunger and plunger cylinder is different fully; Along with power is big more; The size of above-mentioned parts is also big more, thereby component can not be general in the oil hydraulic motor of different power, thereby can not realize modularization production.Secondly, this pluger type hydraulic pump also is not easy to realize power dividing.
Summary of the invention
The technical problem that the present invention will solve is for providing a kind of oil hydraulic pump group, and the structural design of this oil hydraulic pump group can make component general under the different capacity pattern on the one hand, thereby realizes modularization production; Can realize power dividing with comparalive ease on the other hand.
For solving the problems of the technologies described above, the present invention provides a kind of oil hydraulic pump group, is used for wind power generating set, comprises front cover, rear end cover, is located at the piston/cylinder between front cover and the rear end cover and rotates through front cover and the rotation axis body of rear end cover; Said rotation axis body comprises symmetrical axial region and eccentric axial portion; The quantity of said eccentric axial portion is at least two; And the axially-aligned setting of each said symmetrical axial region in eccentric axial portion edge, and its projection in the radial plane of this symmetry axial region circumferentially evenly distributing along this symmetry axial region;
With respect to each eccentric axial portion; All being formed with quantity in the inner chamber of said piston/cylinder is one group of a plurality of plunger chamber; Said oil hydraulic pump group also comprises a plurality of plunger parts; But an end to-and-fro motion of said plunger part is located in the said plunger chamber, and its other end is attached to the outside of said eccentric axial portion and can relatively rotates;
Said oil hydraulic pump group comprises that also the high pressure at the circumferential edge position of being located at said plunger chamber goes out oil pocket and low pressure oil suction chamber; This high pressure goes out oil pocket through outlet valve assembly and said plunger chamber unilaterally connected; This low pressure oil suction chamber is through oiling valve assembly and said plunger chamber unilaterally connected; By stretching into limit position in the process of stretching out the limit position motion, said plunger chamber sucks low pressure oil through said oiling valve assembly by said low pressure oil suction chamber with convenient plunger part; When plunger part by stretching out limit position in the process that stretches into limit position motion, said plunger chamber goes out oil pocket through said outlet valve assembly to said high pressure and sprays into high pressure oil.
Preferably, said piston/cylinder comprises the cylinder body ring that quantity is identical with the quantity of said eccentric axial portion, and each group plunger chamber all is located on the cylinder body ring, and each plunger chamber is the through hole that radially is provided with along said cylinder body ring;
Said piston/cylinder comprises that also sealing is placed in the circumferential outside high low pressure chamber stripper loop of said cylinder body ring; This high low pressure chamber stripper loop is provided with high pressure cavity and low pressure cavity; The inboard of said high pressure cavity is through said outlet valve assembly and said plunger chamber unilaterally connected, and the inboard of said low pressure cavity is through said oiling valve assembly and said plunger chamber unilaterally connected;
The circumferential outside seal of said high low pressure chamber stripper loop is set with high low pressure chamber bezel ring,, and this high low pressure chamber bezel ring, seals said high pressure cavity and low pressure cavity and forms said high pressure respectively and go out oil pocket and low pressure oil suction chamber.
Preferably, the arbitrary group of pairing one group of plunger part of plunger chamber includes main plunger parts and a plurality of auxilliary plunger part;
The one end sealing of said main plunger parts is located in the said plunger chamber, and its other end is connected with the plunger ring that rotating sleeve is loaded on the outside of said eccentric axial portion;
The one end sealing of each said auxilliary plunger part is located in the corresponding plunger chamber, and its other end all is articulated in to be gone up in the week of said plunger ring outward.
Preferably, said main plunger parts comprise the principal post stopper rod, and an end of said principal post stopper rod is hinged with sealing and is located at the principal post piston part in the corresponding plunger chamber, and the other end of said principal post stopper rod connects said plunger ring.
Preferably, said plunger ring comprises first semi-ring that is connected with said principal post stopper rod, and second semi-ring that is connected with this first semi-ring; The circumferential outside of said first semi-ring and said second semi-ring be provided with in case with the hinged hinging hole of said auxilliary plunger part.
Preferably, be provided with toggle between two adjacent cylinder body rings, the outside that is placed in said symmetrical axial region is rotated in the inner of this toggle, and the both sides of the outer end of this toggle are connected with rear end cover with front cover through corresponding high low pressure chamber bezel ring, respectively;
The outer end of this toggle further is connected on the cabin frame of said wind power generating set.
Preferably; Said toggle comprises the toggle outer shroud and is fixed at ring in the inner toggle of this toggle outer shroud; Ring rotates the outside that is placed in said symmetrical axial region in the said toggle, and said toggle outer shroud both sides are connected with rear end cover with front cover through corresponding high low pressure chamber bezel ring, respectively.
Preferably, ring comprises the interconnective first torsion semi-ring and the second torsion semi-ring in the said toggle, and the said first torsion semi-ring is fixedly connected on the inwall of said toggle outer shroud through stiffening rib.
Preferably, said symmetrical axial region is provided with central through bore, is fixed with central shaft in this central through bore, and this central shaft is provided with so that the axle center hole that the elastic cable paper of wind power generating set passes through; Gap between the outer wall of said central shaft and the inwall of said central through bore forms oil leab.
In addition, for solving the problems of the technologies described above, the present invention also provides a kind of wind power generating set, comprises main shaft, and an end of said main shaft is connected with blade through wheel hub; Said wind power generating set also comprises above-mentioned each described oil hydraulic pump group, and the other end of said main shaft and said rotation axis body are in transmission connection.
In the present invention, during work, along with eccentric axial portion is rotated; Part plunger part is by stretching into limit position to stretching out the limit position motion; At this moment, the low pressure oil in the low pressure oil suction chamber gets in the plunger chamber through the oiling valve assembly, stretches out limit position until this plunger part way; Then; Along with eccentric axial portion is rotated further; This plunger part is by stretching out limit position to stretching into the limit position motion, and the high pressure oil in the plunger chamber at its place sprays into high pressure through the outlet valve assembly and goes out oil pocket under the promotion of this plunger part at this moment; High pressure oil and then go out oil pocket by this high pressure and derive, thus realized that kinetic energy is to the hydraulic pressure transformation of energy.
In the present invention, owing on symmetrical axial region, a plurality of eccentric axial portion can be set,, one group of plunger chamber can be set, corresponding one group of plunger part in each group plunger chamber with respect to an eccentric axial portion; In this kind structure, an eccentric axial portion, one group of plunger chamber and one group of plunger part and other components can be equivalent to a hydraulic pump unit, thereby a plurality of hydraulic pump units can be set as required, thereby increase output power.In this kind structure; The size that the needed eccentric axial portion of each hydraulic pump unit, plunger chamber, plunger part and the high pressure that matches thereof go out oil pocket, low pressure oil suction chamber, oiling valve assembly and outlet valve assembly etc. all is identical; That is the component of same size can produce the oil hydraulic pump group of different output power as required, thereby have realized modularization production.
In addition; In said structure, the oil hydraulic pump group comprises a plurality of hydraulic pump units, and each hydraulic pump unit is equipped with an independent high pressure and goes out oil pocket; Each high pressure goes out oil pocket as an independent power output unit output, thereby the oil hydraulic pump group can realize power dividing with comparalive ease.
In sum, oil hydraulic pump group provided by the present invention can make component general under the different capacity pattern on the one hand, thereby realizes modularization production; Can realize power dividing with comparalive ease on the other hand.
Description of drawings
Fig. 1 is the structural representation of a kind of radial plunger type oil hydraulic pump of existing technology;
Fig. 2 is the structural representation of oil hydraulic pump group in an embodiment of the present invention;
Fig. 3 is the structural representation of the cylinder body ring of oil hydraulic pump group among Fig. 2;
Fig. 3-1 is the side view of cylinder body ring among Fig. 3;
Fig. 4 is the structural representation of the rotation axis body of oil hydraulic pump group among Fig. 2;
Fig. 5 is the structural representation of the high low pressure chamber stripper loop of oil hydraulic pump group among Fig. 2;
Fig. 5-1 is the side view of high low pressure chamber stripper loop among Fig. 5;
Fig. 6 is the structural representation of the high low pressure chamber bezel ring, of oil hydraulic pump group among Fig. 2;
Fig. 7 is the sectional view diametrically of oil hydraulic pump group among Fig. 2;
Fig. 8 is the principal post stopper rod of main plunger parts among Fig. 7 and the structural representation of plunger ring;
Fig. 9 is the structural representation of the toggle of oil hydraulic pump group among Fig. 2.
Wherein, the corresponding relation between reference character and the component names is among Fig. 1:
1 ' stator; 2 ' plunger; 3 ' plunger cylinder; 4 ' oil distributing shaft; 5 ' oil distributing shaft auxiliary; 6 ' low pressure oil suction chamber; 7 ' high pressure goes out oil pocket.
Corresponding relation among Fig. 2 to Fig. 9 between reference character and the component names is:
1 front cover;
2 rear end covers;
3 rotation axis bodies; 31 symmetrical axial regions; 311 central shafts; The 311a axle center hole; 312 oil leabs; 32 eccentric axial portion;
4 cylinder body rings; 41 plunger chamber;
5 high low pressure chamber stripper loops; 51 high pressure go out oil pocket; 51a outlet valve assembly; The outlet of 51b high pressure oil; 52 low pressure oil suction chambers; 52a oiling valve assembly; 52b low pressure oil inlet;
6 high low pressure chamber bezel ring,s;
71 main plunger parts; 711 plunger rings; 711a first semi-ring; 711b second semi-ring; The 711c hinging hole; 712 principal post stopper rods; 713 principal post piston parts;
72 auxilliary plunger parts;
8 toggles; 81 toggle outer shrouds; Ring in 82 toggles; 821 first torsion semi-rings; 822 second torsion semi-rings; 83 stiffening ribs.
Embodiment
Core of the present invention is for providing a kind of oil hydraulic pump group, and the structural design of this oil hydraulic pump group can make component general under the different capacity pattern on the one hand, thereby realizes modularization production; Can realize power dividing with comparalive ease on the other hand.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 2 and Fig. 4, Fig. 2 is the structural representation of oil hydraulic pump group in an embodiment of the present invention; Fig. 4 is the structural representation of the rotation axis body of oil hydraulic pump group among Fig. 2.
In one embodiment; Oil hydraulic pump group provided by the present invention is used for wind power generating set, it is characterized in that; As shown in Figure 2, comprise front cover 1, rear end cover 2, be located at the piston/cylinder between front cover 1 and the rear end cover 2 and rotate through front cover 1 and the rotation axis body 3 of rear end cover 2; As shown in Figure 4; Said rotation axis body 3 comprises symmetrical axial region 31 and eccentric axial portion 32; The quantity of said eccentric axial portion 32 is at least two; And the axially-aligned setting of each said symmetrical axial region 31 in eccentric axial portion 32 edges, and its projection in the radial plane of this symmetry axial region 31 circumferentially evenly distributing along symmetrical axial region 31;
With respect to each eccentric axial portion 32; All being formed with quantity in the inner chamber of said piston/cylinder is one group of a plurality of plunger chamber 41; Said oil hydraulic pump group also comprises a plurality of plunger parts; But an end to-and-fro motion of said plunger part is located in the plunger chamber 41, and its other end is attached to the outside of said eccentric axial portion 32 and can relatively rotates;
Said oil hydraulic pump group comprises that also the high pressure at the circumferential edge position of being located at said plunger chamber 41 goes out oil pocket 51 and low pressure oil suction chamber 52; This high pressure goes out oil pocket 51 through outlet valve assembly 51a and said plunger chamber 41 unilaterally connecteds; This low pressure oil suction chamber 52 is through oiling valve assembly 52a and said plunger chamber 41 unilaterally connecteds; By stretching into limit position in the process of stretching out the limit position motion, said plunger chamber 41 sucks low pressure oil through said oiling valve assembly 52a by said low pressure oil suction chamber 52 with convenient plunger part; When plunger part by stretching out limit position in the process that stretches into limit position motion, said plunger chamber 41 goes out oil pocket 51 through said outlet valve assembly 51a to said high pressure and sprays into high pressure oil.
In the present invention, during work, along with eccentric axial portion 32 is rotated; Part plunger part is by stretching into limit position to stretching out the limit position motion; At this moment, the low pressure oil in the low pressure oil suction chamber 52 gets in the plunger chamber 41 through oiling valve assembly 52a, stretches out limit position until this plunger part way; Then; Along with eccentric axial portion 32 is rotated further; This plunger part is by stretching out limit position to stretching into the limit position motion, and the high pressure oil in the plunger chamber 41 at its place sprays into high pressure through outlet valve assembly 51a and goes out oil pocket 51 under the promotion of this plunger part at this moment; High pressure oil and then go out oil pocket 51 by this high pressure and derive, thus realized that kinetic energy is to the hydraulic pressure transformation of energy.
In the present invention, owing on symmetrical axial region 31, a plurality of eccentric axial portion 32 can be set, accordingly,, one group of plunger chamber 41 can be set, corresponding one group of plunger part in each group plunger chamber 41 with respect to an eccentric axial portion 32; In this kind structure, eccentric axial portion 32, one group of plunger chamber 41 and one group of plunger part and other components can be equivalent to a hydraulic pump unit, thereby a plurality of hydraulic pump units can be set as required, thereby increase output power.In this kind structure; The size that the needed eccentric axial portion of each hydraulic pump unit 32, plunger chamber 41, plunger part and the high pressure that matches thereof go out oil pocket 51, low pressure oil suction chamber 52, oiling valve assembly 52a and outlet valve assembly 51a etc. all is identical; That is the component of same size can produce the oil hydraulic pump group of different output power as required, thereby have realized modularization production.
In addition; In said structure, the oil hydraulic pump group comprises a plurality of hydraulic pump units, and each hydraulic pump unit is equipped with an independent high pressure and goes out oil pocket 51; Each high pressure goes out oil pocket 51 as an independent power output unit output, thereby the oil hydraulic pump group can realize power dividing with comparalive ease.
In technique scheme; Can also make concrete design to the formation structure that plunger chamber 41, high pressure go out oil pocket 51 and low pressure oil suction chamber 52; Such as, please refer to Fig. 3, Fig. 3-1, Fig. 5, Fig. 5-1 and Fig. 6, Fig. 3 is the structural representation of the cylinder body ring of oil hydraulic pump group among Fig. 2; Fig. 3-1 is the side view of cylinder body ring among Fig. 3; Fig. 5 is the structural representation of the high low pressure chamber stripper loop of oil hydraulic pump group among Fig. 2; Fig. 5-1 is the side view of high low pressure chamber stripper loop among Fig. 5; Fig. 6 is the structural representation of the high low pressure chamber bezel ring, of oil hydraulic pump group among Fig. 2.
Shown in Fig. 3 and Fig. 3-1; Said piston/cylinder comprises the cylinder body ring 4 that quantity is identical with the quantity of said eccentric axial portion 32; Each group plunger chamber 41 all is located on the cylinder body ring 4, and each plunger chamber 41 is the through hole that radially is provided with along said cylinder body ring 4.
Please be simultaneously with reference to figure 2, Fig. 5 and Fig. 5-1; Said piston/cylinder comprises that also sealing is placed in the circumferential outside high low pressure chamber stripper loop 5 of said cylinder body ring 4; This high low pressure chamber stripper loop 5 is provided with high pressure cavity and low pressure cavity; The inboard of said high pressure cavity is through said outlet valve assembly 51a and said plunger chamber 41 unilaterally connecteds, and the inboard of said low pressure cavity is through said oiling valve assembly 52a and said plunger chamber 41 unilaterally connecteds; Particularly, shown in Fig. 5-1, be respectively equipped with high pressure oil on the high low pressure chamber stripper loop 5 and go out 51b and low pressure oil inlet 52b, this high pressure oil goes out to set out oil valve assembly 51a on the 51b, thereby realizes the unidirectional conducting that plunger chamber 41 and high pressure go out oil pocket 51; On this low pressure oil inlet 52b oiling valve assembly 52a is set, thereby realizes the unidirectional conducting of plunger chamber 41 and low pressure oil suction chamber 52.
In addition; Please refer to Fig. 2, Fig. 5-1 and Fig. 6; The circumferential outside seal of said high low pressure chamber stripper loop 5 is set with high low pressure chamber bezel ring, 6, and these high low pressure chamber bezel ring, 6 said high pressure cavities of sealing and low pressure cavity form said high pressure respectively and go out oil pocket 51 and low pressure oil suction chamber 52.Need to prove that this high low pressure chamber bezel ring, 6 is provided with high pressure oil interface and low pressure oil interface, be communicated with that the low pressure oil inlet pipe is communicated with low pressure oil suction chamber 52 through the low pressure oil interface so that the high pressure oil outlet tube goes out oil pocket 51 through high pressure oil interface and high pressure.
In technique scheme, can also make concrete design to the structure of plunger part, such as, please refer to Fig. 7 and Fig. 8, Fig. 7 is the sectional view diametrically of oil hydraulic pump group among Fig. 2; Fig. 8 is the principal post stopper rod of main plunger parts among Fig. 7 and the structural representation of plunger ring.
As shown in Figure 7, arbitrary group of plunger chamber 41 pairing one group of plunger part include main plunger parts 71 and a plurality of auxilliary plunger parts 72; The one end sealing of said main plunger parts 71 is located in the said plunger chamber 41, and its other end is connected with the plunger ring 711 that rotating sleeve is loaded on the outside of said eccentric axial portion 32; The one end sealing of each said auxilliary plunger part 72 is located in the corresponding plunger chamber 41, and its other end all is articulated in to be gone up in the week of said plunger ring 711 outward.
In the said structure design; Each auxilliary plunger part 72 has been realized and being rotationally connected of eccentric axial portion 32 through a plunger ring 711; With respect to each auxilliary plunger part 72 separately and the structural design that is rotationally connected of eccentric axial portion 32; The reliability and stability of its work are significantly improved, and simplify the structure, and have reduced the manufacturing cost.
Particularly, in technique scheme, can make concrete design to the structure of main plunger parts 71; Such as, as shown in Figure 8, said main plunger parts 71 comprise principal post stopper rod 712, and an end of said principal post stopper rod 712 is hinged with sealing and is located at the principal post piston part 713 in the corresponding plunger chamber 41, and the other end of said principal post stopper rod 712 connects said plunger ring 711.Further, said plunger ring 711 comprises the first semi-ring 711a that is connected with said principal post stopper rod 712, and the second semi-ring 711b that is connected with this first semi-ring 711a; The circumferential outside of said first semi-ring 711a and the said second semi-ring 711b is provided with so that the hinging hole 711c hinged with said auxilliary plunger part 72.
In the said structure design,, thereby can realize more easily assembling with the suit of eccentric axial portion 32 because plunger ring 711 comprises the first semi-ring 711a and the second semi-ring 711b.In addition, the circumferential outside hinging hole 711c of said first semi-ring 711a and the said second semi-ring 711b can realize hinged with auxilliary plunger part 72 more easily.
On the basis of technique scheme, can also make further design, such as please refer to Fig. 9, Fig. 9 is the structural representation of the toggle of oil hydraulic pump group among Fig. 2.
As shown in Figure 2, be provided with toggle 8 between two adjacent cylinder body rings 4, the outside that is placed in said symmetrical axial region 31 is rotated in the inner of this toggle 8, and the both sides of the outer end of this toggle 8 are connected with rear end cover 2 with front cover 1 through corresponding high low pressure chamber bezel ring, 6 respectively; Particularly, can connect through bolt.And comparatively crucial is that the outer end of this toggle 8 further is connected on the cabin frame of said wind power generating set.
In said structure, owing to toggle 8 is connected on the frame of cabin, thereby toggle 8 is fixed; And then on this basis; The both sides of the outer end of this toggle 8 are connected with rear end cover 2 with front cover 1 through corresponding high low pressure chamber bezel ring, 6 respectively, thereby front cover 1, rear end cover 2 and high low pressure chamber bezel ring, 6, cylinder body ring 4 and high low pressure chamber stripper loop 55 are all fixed; On this basis, rotation axis body 3 can be organized plunger part with respect to each and rotate, and avoids whole oil hydraulic pump along with 3 rotations of rotation axis body.
Further; As shown in Figure 9; Said toggle 8 comprises toggle outer shroud 81 and is fixed at the interior ring 82 of toggle of these toggle outer shroud 81 inside; Ring 82 rotates the outside that is placed in said symmetrical axial region 31 in the said toggle, and said toggle outer shroud 81 both sides are connected with rear end cover 2 with front cover 1 through corresponding high low pressure chamber bezel ring, 6 respectively.This kind structural design has realized being rotationally connected between toggle 8 and the symmetrical axial region 31 on the one hand easily, has realized more easily also that on the other hand toggle 8 is through the high low pressure chamber bezel ring, 6 of correspondence and being connected of front cover 1 and rear end cover 2.
Particularly, as shown in Figure 9, ring 82 comprises the interconnective first torsion semi-ring 821 and the second torsion semi-ring 822 in the said toggle, and this kind structural design can be convenient to the suit assembling between interior ring 82 of toggle and the symmetrical axial region 31; The said first torsion semi-ring 821 is fixedly connected on the inwall of said toggle outer shroud 81 through stiffening rib, thereby improves the structural strength of ring 82 in the toggle.
In addition; In above-mentioned any technological scheme, as shown in Figure 4, said symmetrical axial region 31 is provided with central through bore; Be fixed with central shaft 311 in this central through bore; This central shaft 311 axle center hole 311a, the elastic cable paper of wind power generating set just pass this axle center hole 311a and get in the wheel hub, thereby are connected with power equipment correspondingly; In addition; As shown in Figure 4; Gap between the outer wall of said central shaft 311 and the inwall of said central through bore forms oil leab 312, through the radial direction oil of offering on this oil leab 312 and the rotation axis body 3, can each bearing on the rotation axis body 3 be lubricated.
In addition, the present invention also provides a kind of wind power generating set, comprises main shaft, and an end of said main shaft is connected with blade through wheel hub; State wind power generating set and also comprise above-mentioned each described oil hydraulic pump group, the other end of said main shaft and said rotation axis body 3 are in transmission connection.Other parts of this wind power generating set can be with reference to existing technology, and this paper no longer launches.
More than a wind power generating set provided by the present invention and oil hydraulic pump group thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. an oil hydraulic pump group is used for wind power generating set, it is characterized in that, comprises front cover (1), rear end cover (2), is located at the piston/cylinder between front cover and the rear end cover and rotates through front cover (1) and the rotation axis body (3) of rear end cover (2); Said rotation axis body (3) comprises symmetrical axial region (31) and eccentric axial portion (32); The quantity of said eccentric axial portion (32) is at least two; And the axially-aligned setting of each eccentric axial portion (32) said symmetrical axial region in edge (31), and its projection in the radial plane of this symmetry axial region (31) circumferentially evenly distributing along this symmetry axial region (31);
With respect to each eccentric axial portion (32); All being formed with quantity in the inner chamber of said piston/cylinder is a plurality of one group of plunger chamber (41); Said oil hydraulic pump group also comprises a plurality of plunger parts; But an end to-and-fro motion of said plunger part is located in the said plunger chamber (41), and its other end is attached to the outside of said eccentric axial portion (32) and can relatively rotates;
Said oil hydraulic pump group comprises that also the high pressure at the circumferential edge position of being located at said plunger chamber (41) goes out oil pocket (51) and low pressure oil suction chamber (52); This high pressure goes out oil pocket (51) through outlet valve assembly (51a) and said plunger chamber (41) unilaterally connected; This low pressure oil suction chamber (52) is through oiling valve assembly (52a) and said plunger chamber (41) unilaterally connected; By stretching into limit position in the process of stretching out the limit position motion, said plunger chamber (41) sucks low pressure oil through said oiling valve assembly (52a) by said low pressure oil suction chamber (52) with convenient plunger part; When plunger part by stretching out limit position in the process that stretches into limit position motion, said plunger chamber (41) goes out oil pocket (51) through said outlet valve assembly (51a) to said high pressure and sprays into high pressure oil.
2. oil hydraulic pump group as claimed in claim 1; It is characterized in that; Said piston/cylinder comprises the cylinder body ring (4) that quantity is identical with the quantity of said eccentric axial portion (32); Each group plunger chamber (41) all is located on the cylinder body ring (4), and each plunger chamber (41) is the through hole that radially is provided with along said cylinder body ring (4);
Said piston/cylinder comprises that also sealing is placed in the circumferential outside high low pressure chamber stripper loop (5) of said cylinder body ring (4); This high low pressure chamber stripper loop (5) is provided with high pressure cavity and low pressure cavity; The inboard of said high pressure cavity is through said outlet valve assembly (51a) and said plunger chamber (41) unilaterally connected, and the inboard of said low pressure cavity is through said oiling valve assembly (52a) and said plunger chamber unilaterally connected;
The circumferential outside seal of said high low pressure chamber stripper loop (5) is set with high low pressure chamber bezel ring, (6), and this high low pressure chamber bezel ring, (6) said high pressure cavity of sealing and low pressure cavity form said high pressure respectively and go out oil pocket (51) and low pressure oil suction chamber (52).
3. oil hydraulic pump group as claimed in claim 2 is characterized in that, the pairing one group of plunger part of arbitrary group of plunger chamber (41) includes main plunger parts (71) and a plurality of auxilliary plunger part (72);
The one end sealing of said main plunger parts (71) is located in the said plunger chamber (41), and its other end is connected with the plunger ring (711) that rotating sleeve is loaded on the outside of said eccentric axial portion (32);
The one end sealing of each said auxilliary plunger part (72) is located in the corresponding plunger chamber (41), and its other end all is articulated in going up outward in week of said plunger ring (711).
4. oil hydraulic pump group as claimed in claim 3; It is characterized in that; Said main plunger parts (71) comprise principal post stopper rod (712); One end of said principal post stopper rod (712) is hinged with sealing and is located at the principal post piston part (713) in the corresponding plunger chamber (41), and the other end of said principal post stopper rod (712) connects said plunger ring (711).
5. oil hydraulic pump group as claimed in claim 4 is characterized in that, said plunger ring (711) comprises first semi-ring (711a) that is connected with said principal post stopper rod (712), and second semi-ring (711b) that is connected with this first semi-ring (711a); The circumferential outside of said first semi-ring (711a) and said second semi-ring (712b) is provided with so that the hinging hole (712c) hinged with said auxilliary plunger part (72).
6. like each described oil hydraulic pump group of claim 2 to 5; It is characterized in that; Be provided with toggle (8) between adjacent two cylinder body rings (4); The outside that is placed in said symmetrical axial region (31) is rotated in the inner of this toggle (8), and the both sides of the outer end of this toggle (8) are connected with rear end cover (2) with front cover (1) through corresponding high low pressure chamber bezel ring, (6) respectively;
The outer end of this toggle (8) further is connected on the cabin frame of said wind power generating set.
7. oil hydraulic pump group as claimed in claim 6; It is characterized in that; Said toggle (8) comprises toggle outer shroud (81) and is fixed at ring (82) in the inner toggle of this toggle outer shroud (81); Ring (82) rotates the outside that is placed in said symmetrical axial region (31) in the said toggle, and said toggle outer shroud (81) both sides are connected with rear end cover (2) with front cover (1) through corresponding high low pressure chamber bezel ring, (6) respectively.
8. oil hydraulic pump group as claimed in claim 7; It is characterized in that; Ring (82) comprises the interconnective first torsion semi-ring (821) and the second torsion semi-ring (822) in the said toggle, and the said first torsion semi-ring (821) is fixedly connected on the inwall of said toggle outer shroud (81) through stiffening rib (83).
9. like each described oil hydraulic pump group of claim 2 to 5; It is characterized in that; Said symmetrical axial region (31) is provided with central through bore, is fixed with central shaft (311) in this central through bore, and this central shaft (311) is provided with so that the axle center hole that the elastic cable paper of wind power generating set passes through (311a); Gap between the outer wall of said central shaft (311) and the inwall of said central through bore forms oil leab (312).
10. a wind power generating set comprises main shaft, and an end of said main shaft is connected with blade through wheel hub; It is characterized in that said wind power generating set comprises that also the other end of said main shaft and said rotation axis body (3) are in transmission connection like each described oil hydraulic pump group of claim 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210091277.0A CN102606435B (en) | 2012-03-30 | 2012-03-30 | Wind generating set and hydraulic pump aggregate thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210091277.0A CN102606435B (en) | 2012-03-30 | 2012-03-30 | Wind generating set and hydraulic pump aggregate thereof |
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| CN102606435A true CN102606435A (en) | 2012-07-25 |
| CN102606435B CN102606435B (en) | 2015-02-04 |
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| CN201210091277.0A Active CN102606435B (en) | 2012-03-30 | 2012-03-30 | Wind generating set and hydraulic pump aggregate thereof |
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| CN105971826A (en) * | 2016-06-15 | 2016-09-28 | 三重型能源装备有限公司 | Hydraulic wind power generator |
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| CN106499605A (en) * | 2016-11-14 | 2017-03-15 | 三集团有限公司 | Hydraulic pump body structure and hydraulic blower |
| CN110073103A (en) * | 2016-12-12 | 2019-07-30 | 卡玛特有限及两合公司 | Piston pump and its purposes in wind power installation |
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|---|---|
| CN102606435B (en) | 2015-02-04 |
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Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY ELECTRIC Co.,Ltd. Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |
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