CN206439146U - 2WM accelerating gearbox for wind power generator - Google Patents

Abstract

The utility model is related to a kind of 2WM accelerating gearbox for wind power generator, including two-stage speedup planetary gear train, and exported by one-level parallel speed increasing, lubricating system also includes motor-driven oil pump, oil path distributor and the oil leab towards each bearing, oil pump output end is connected by oil path distributor with each oil leab, it is characterized in that, closed oil ring structure is set in the output gear shaft blade end bearing of stage parallel speed increasing, oil path distributor provides lubrication after being docked by oil circuit with oil ring structure for output gear shaft blade end bearing.

Description

2WM accelerating gearbox for wind power generator

Technical field

The utility model is related to gear-box, especially 2WM accelerating gearbox for wind power generator.

Background technology

It is well known that being available for human development and the fossil energy used to be limited on the earth, and it can not possibly regenerate. Progressively expansion however as global industry process simultaneously accelerates, and countries in the world steeply rise to the demand of the energy, and common Coal, the macrofossil energy of oil and natural gas three are increasingly exhausted, and nowadays, various countries are to above-mentioned energy crisis and environmental degradation problem It has been reached common understanding that, that is, find and develop regenerative resource.According to expert, it is expected that the topmost energy that the 21 century mankind use is： Nuclear energy, solar energy, wind energy, geothermal energy, tide energy, combustible ice and Hydrogen Energy.And in so many regenerative resources and new technology development In application, wind energy receives much attention as one of main member.

Wind-power electricity generation, with the free of contamination advantage that generates electricity, compared with hydroelectric generation, has compared with traditional thermal power generation Capital construction cost is low, floor space is small, the convenient advantage of maintaining, especially large-scale water-power plant, and storage reservoir is also easy to pair Cause certain potential safety hazard in downstream.

As the effective way for improving wind energy utilization and power benefit, wind-driven generator single-machine capacity is constantly to large-scale hair Exhibition.Megawatt wind power machine progressively turns into the main product of international wind energy in the market.In wind-driven generator, gear-box is wind-force hair The critical component of motor；Constantly obtain certain progress in terms of reliability, maximization.China's megawatt-grade high-power wind Power generator is quickly grown with step-up gear, and the step-up gear more commonly used in the prior art is generally directed to low power wind Power generator, they typically use+two grades of parallel axes of primary planet train（As transition gear axle and output gear shaft）Output Mode be driven, for above-mentioned present situation, applicant have submitted multinomial patent application, such as Publication No. to Patent Office of the People's Republic of China 203272625U, 202579056U, 202579058U etc..

Because applying working condition is severe, load condition is complicated, and gear-box is frequently necessary to safeguard in application process at the scene；Big On the accelerating gearbox for wind power generator of power, according to the structure type of existing accelerating gearbox for wind power generator to each axle The lubrication and the bearing capacity of transition gear axle, especially output gear shaft and its spring bearing held have been difficult to, together When, all it is the problem of we must take into consideration and further improve in high aerial maintaining easily property etc..Therefore, in the urgent need to exploitation The problem of one kind can extend powerful accelerating gearbox for wind power generator output shaft service life.

Utility model content

The purpose of this utility model is, is lubricated for existing accelerating gearbox for wind power generator and bearing capacity can not Adapt to a kind of increasing for wind-driven generator of the practical problem there is provided 2WM of powerful accelerating gearbox for wind power generator Fast gear-box.

What the purpose of this utility model was realized in：A kind of 2WM accelerating gearbox for wind power generator, including two-stage Speedup planetary gear train, and being exported by one-level parallel speed increasing, lubricating system also include motor-driven oil pump, oil path distributor with And towards the oil leab of each bearing, oil pump output end is connected by oil path distributor with each oil leab, and its feature exists In, in the output gear shaft blade end bearing of stage parallel speed increasing, closed oil ring structure is set, oil path distributor by oil circuit with After oil ring structure docking lubrication is provided for output gear shaft blade end bearing.

In the utility model, the screw provided with dismounting bearing in described oil ring structure.

The utility model has the advantage of：It is parallel（Output）The output shaft blade-side of level gear train is provided with closed oil ring Structure oil spout ring structure is optimized, and sealed construction is changed to by traditional Open architecture.The benefit brought has at 2 points：First, The lubricating system of output shaft blade side bearing changes from circulation lubrication and is changed into oil sump lubrication, certain journey more effective to bearing lubrication The life-span of bearing is added on degree.2nd, screwed hole is increased at injection loop, for tightening screw rod, bearing outer ring easy to disassemble.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the appearance schematic diagram of the utility model embodiment.

Fig. 3 is the partial schematic diagram of I in Fig. 1.

Fig. 4 is the traditional structure schematic diagram at I positions in corresponding diagram 1.

In figure, 1 toggle, 2 first（Input）Level planet carrier, 3 first（Input）Level ring gear, casing in 4,5 the Secondary planet frame, 6 second level ring gears, 7 rear box, 8 gear wheels, 9 female splined shafts, 10 back box lids, 11 transparent covers, 12 Transparent cover, 13 transparent covers, 14 transparent covers, 15 output gear shafts, 16 pipe axles, 17 second level sun gears, 18 second level planetary gears, 19 Second level planet wheel spindle, `20 first（Input）Level planetary gear, 21 first（Input）Level planet wheel spindle, 22 first（Input）Level Sun gear, 23 pipe axle fixed stops, 24 flanges, 25 shrink disks, 26 oil ring structures, 27 screws, 75 oil path distributors, 76 Lubricating system motor, 77 electrodynamic pumps, 78 filters, 79 temperature-sensing valves.

Embodiment

The nonrestrictive concrete structures for disclosing the utility model embodiment of accompanying drawing 1-3, below in conjunction with the accompanying drawings to this reality It is further described with new.

From Fig. 1-Fig. 3, the utility model includes casing, planetary gear train, pipe axle, output gear train and lubricating system, Concrete structure is：

Casing includes toggle 1, middle casing 4 and rear box 7, back box lid 10 and four transparent covers 11,12,13,14；

Described planetary gear train includes first（Input）Level planetary gear train, second level planetary gear train, wherein, first（Input） Level ring gear 3 is located between toggle 1 and middle casing 4, and second level ring gear 6 is located between middle casing 4 and rear box 7.It is parallel （Output）Level gear train includes gear wheel 8, output gear shaft 15 and female splined shaft 9, and gear wheel 8 is fixed on female splined shaft 9； First（Input）Level sun gear 22 and second level sun gear 17 and parallel（Output）The female splined shaft 9 of level gear train is installed successively On same pipe axle 16；First（Input）Level planet carrier 2 is determined by one end of pipe axle fixed stop 23 and flange 24 and pipe axle 16 Position connection, and the other end of pipe axle 16 passes through parallel（Output）Level casing and by bearings in transparent cover 11, the second level sun Wheel 17 is connected by spline with described female splined shaft 9.

Described lubricating system includes lubricating system motor 76, electrodynamic pump 77, filter 78, temperature-sensing valve 79, oil circuit distribution Device 75 is connected with each oil leab and towards the oil leab of each bearing.

In the present embodiment, one end of output gear shaft 15 and Inner splined shafts 9 by bearings in rear box 7, it is defeated Go out the outlet side of gear shaft 15 and the other end of Inner splined shafts 9 and be supported in back box lid 10 by matching cylinder roller bearing, export The output end of gear shaft 15 passes through rear box 7, back box lid 10 and transparent cover 13,14.

In the present embodiment, the motor 76 that driving electric pump 77 is operated in described lubricating system is connected to gear-box, mistake Filter 78 and temperature-sensing valve 79 are serially connected in lubricating system, and the output end of temperature-sensing valve 79 passes through oil path distributor 75 and each lubricating oil Road is connected.

Especially it is emphasized that：In the output shaft blade end bearing of stage parallel speed increasing, closed oil ring structure 26 is set, Oil ring knot, 26 docked by oil circuit with oil path distributor 75 after be the blade end of output gear shaft 15（It is located at one on the inside of gear-box End）Bearing provides lubrication.Screw 27 provided with dismounting bearing in described oil ring structure 26.Tradition shown in these structures and 4 Structure is significantly different.

When it is implemented, first（Input）Level planet carrier 2 is arranged on toggle 1 and raising middle flask using full-complement cylinder roller bearing Between body 4, second level planet carrier 5 is arranged between middle casing 4 and rear box 7 using full-complement cylinder roller bearing, and first（It is defeated Enter）The level periphery of planet carrier 2 is distributed with 3 first in annular array mode（Input）Level planet wheel spindle 21, second level planet carrier 5 weeks Then 3 second level planet wheel spindles 19, first are distributed with annular array mode in side（Input）Level planetary gear 20 and second level planet Wheel 18 is arranged on correspondence planet wheel spindle by the taper roll bearing of two arranged in co-axial alignment.

When it is implemented, rear box 7, back box lid 10 and transparent cover are linked into an integrated entity composition by pin, threaded fastener, it is defeated Go out gear shaft 15 and the pipe axle 16 positioned at outlet side is respectively positioned on the joint portion of back box lid 10.First（Input）Level planet carrier 2 is passed through Toggle 1, first（Input）Level planet carrier 2 passes through back box lid with the joint portion of toggle 1 and output gear shaft 15, pipe axle 16 Joint portion be equipped with the sealing device including oil scraper ring and disc.

When actual use, the kinetic energy of wind-force formation is connected by first by shrink disk 25（Input）Level planet carrier 2 is inputted, and is made First（Input）Level planetary gear 20 surrounds first（Input）Level sun gear 22 is rotated, due to first（Input）Level planetary gear 20 is simultaneously With first（Input）Level ring gear 3, first（Input）Level sun gear 22 is engaged, and makes first（Input）Level sun gear 22 is produced from Turn, and drive the synchronous axial system of second level planet carrier 5；Second level planet carrier 5 makes second level planetary gear 18 surround second level sun gear 17 rotate, and because second level planetary gear 18 is engaged with second level ring gear 6, second level sun gear 17 simultaneously, make the second level sun Wheel 17 produces rotation, and drives female splined shaft 9 and the synchronous axial system of gear wheel 8；Then the high-speed rotation of output gear shaft 15 is driven, most Electrical power generators are driven by output gear shaft 15 afterwards.

During lubrication system works, the lubricating oil in grease-box passes through filter 78 and oil in the presence of electrodynamic pump 77 Distributor 75 transports to each oil leab, and lubricating oil is provided for all bearing and gear, wherein, oil path distributor 75 passes through oil Road provides lubrication after being docked with oil ring structure 26 for the blade end bearing of output gear shaft 15, and oil ring can be first passed through when changing bearing Dismounting bearing screw in structure is by old bearing removal.

Claims (2)

1. a kind of 2WM accelerating gearbox for wind power generator, including two-stage speedup planetary gear train, and pass through one-level parallel speed increasing Output, lubricating system also includes motor-driven oil pump, oil path distributor and the oil leab towards each bearing, and oil pump is defeated Go out end to be connected with each oil leab by oil path distributor, it is characterised in that in the output gear shaft blade of stage parallel speed increasing End bearing sets closed oil ring structure, oil path distributor to be output gear shaft blade end after being docked by oil circuit with oil ring structure Bearing provides lubrication.

2. 2WM according to claim 1 accelerating gearbox for wind power generator, it is characterised in that described oil ring knot Screw provided with dismounting bearing in structure.