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INVENTION
Russian Federation Patent RU2075641

Windmills

Windmills

Name of the inventor: Zabegaev AI .; Gorbunov YN .; Zakrevskii YA
The name of the patentee: Limited Liability Company "Obschemash- engineering"
Address for correspondence:
Starting date of the patent: 1995.04.20

Usage: The invention relates to wind energy, particularly, to a wind power plant that can produce electricity in low-speed vetropotokah. The inventive wind power plant includes a tower, a nacelle with a supporting-turning device, wind wheel shaft, missed inside the nacelle frame with longitudinal beam and mounted on it inside the nacelle, the multiplier with the input low-speed shaft connected to the large gear, includes a clutch for clutch and a generator. It is provided with a dispensing device in the form of single dispenser threaded multiplier comprising an input output shaft with a centrally located large gear and the series output speed shafts with small gear wheels peripherally mounted about a longitudinal propeller axis at distances determined by the radius of a large input and radii low output gears and related mechanisms and units that make up each of the plurality of power streams, inscribed with their longitudinal axes in an edge of a rectangular prism, oriented parallel to the axis of the propeller, the frame is a multi-tiered beam structure formed by a number of longitudinal, parallel beams rigidly connected by a transverse force bar, and in terms of having a "U" shape at the bottom with a central opening, the mechanisms and devices constituting the energy flow, placed on the frame as to form separate rows in the nacelle flows between the central service corridor associated frame through the opening with the interior of the tower, and peripheral corridors between energy flows and the walls of the gondola. Propeller shaft inside the nacelle is installed in front of the load frame between the wind wheel and a multiplier when the power unit through the medium of the two bearings spaced flanges to the power shaft of the wind wheel. Front power propeller shaft flange is provided with guiding and docking ports for secure propeller hub. Power-tier frame beam structure with a clear number of energy flows performed "U" -shaped in each tier, while a fuzzy number of energy flows is made "L" -shaped and is equipped with a hatch mounted on the frame at the place of its central opening. Central and peripheral service corridor bounded below by a removable floor, attached to the frame, and on top - the ceiling of the nacelle, and the transverse dimensions of the central service corridor identified in diameter centrally located large gear and transverse dimensions of the mechanisms and components that make up the individual energy flows, and the diameter of the central gear wheel conditions selected from the passage during maintenance. Transverse dimensions defined peripheral service corridors movably person during maintenance.

DESCRIPTION OF THE INVENTION

The invention relates to wind energy, specifically for the wind power plant (wind turbines) that produce electricity in low-speed vetropotokah.

Known wind power plant [1] comprising the tower, the wind wheel with blades, connected to the input shaft of the multiplier, whose output shaft is connected to the input shaft of the dispenser forming through output shafts of the working and technological flows, the workflow includes flywheels, couplings, generator, and Technology and trigger coupling.

Wind turbine control system is connected through clutches with generators, flywheel and starter.

In this known turbine blades wind wheel connected to the input shaft of the multiplier, the output shaft of the last extended over the entire height of the tower and is connected to the primary input shaft of the dispenser. Three secondary (output) relative to the primary shaft directed in three directions. Each of the shafts directed towards the adjacent right angle.

All mechanisms streams, as workers, as well as technological, placed on the frame structure, based either directly or through the tarmac on the ground, and and mounted at the base of the tower.

This known solution has the following disadvantages:

  • it does not provide selective tripping each power flow, which limits the ability to adapt to the real wind turbine power propeller especially at low speeds vetropotokah;
  • the number of power flow is limited to three: two workers, one - of Technology;
  • It does not provide a mechanical brake the wind turbine, which reduces the safety of operation of wind turbines, particularly in emergency situations in which, for example, the wind wheel can be "disconnected" from the load, which potentially leads to an accident, often the destruction of propeller;
  • It does not provide a smooth breakaway propeller at the initial stage of acceleration, when the flywheels has not yet dispersed, especially at low ambient temperatures when the thickened grease and therefore high resistance to transmission, when the transmission translating the rotation is accompanied by a high dynamic loads;
  • the practical impossibility of placing the power and electrical system is compact, for example, in a gondola, which essentially requires the creation of another plant and increases the amount of work in the construction of wind turbines;
  • Wind turbines for this decision is heavy, both in physical size and specific indicators;
  • lack of reliability;
  • limited resource due to increased wear of transmission by limiting the capacity withdrawn autonomous consumer in a situation where, for example, wind turbines with a capacity of tens of kW "working" on a stand-alone consumer who selects the output in kW unit, and as such there is an inefficient resource development;
  • lack of maintainability;
  • the loss of power in case of failure of any power flows;
  • greater material consumption structure, as, for example, in the construction of this known turbine is used a long shaft between the nacelle and the ground mounted on the dispenser, in turn, leads to increased stress on windmills vibrodynamic during rotation shaft extended.

In principle, the general scheme of installation occupies a large area due to the location of the cross-shaped streams of input, two business and technology, with respect to the dispensing of a mechanical device.

These drawbacks limit the use of this known technical solutions.

Known wind power plant [2] includes a tower, a nacelle with a supporting-turning device, wind wheel shaft, missed inside the nacelle frame with longitudinal beam and mounted inside the nacelle multiplier with the input low-speed shaft, turn off the hydraulic clutch for coupling and the generator.

This solution has the following disadvantages:

  • Turbine has a large size of the unit itself, the nacelle and so caused a "flat" arrangement of transmission, along the low speed shaft oriented, resulting in an increased size of both the transmission and the wind turbine nacelle;
  • a large mass of wind turbines, including high specific weight of the large masses of metal and power rack, caused by the necessity of perception of large bending and twisting moments that the "flat" layout is not optimal;
  • poor reliability, especially because of the fluid coupling;
  • not provided the mechanical brake turbines, resulting in low operational safety of the wind turbine, with the result that the wind turbine does not meet modern safety criteria;
  • limited service life;
  • increased both the cost of installation and electric power generated by it, particularly when the power generated by the installation at least the nominal vetropotokah weak;
  • limiting the generality vetropotokah adaptability to the conditions, as always on a single high-power energy stream, which operate with power underload economically unprofitable.

These drawbacks of the known device for the most part are crucial for wind turbines of average capacity, as well as for wind turbines of high power, oriented to work in conditions of extended vetropotokah speed range, mainly in the direction of low speeds, and designed to operate in a mode on a local area network with an independent consumer or industrial network, and do not allow, in fact, to create a modern wind turbine is almost effectively applicable.

Known wind power plant [2] is essentially the function performed and achieved result is closest to the declared and therefore selected as a prototype.

The task assigned to the developers of this wind turbine is interconnected by a variety of factors and conditions.

The aim of the invention is:

  • improve the reliability of wind turbine nacelle size reduction and reduction of the material of wind turbines through the implementation of multi-threaded construction and application of dense layout transmission and power equipment in the nacelle of wind turbines;
  • increase the resource of wind turbines due to the rational use of workflows to generate power, to give an autonomous consumer in terms of variable consumption;
  • reduction of loads acting on the components and assemblies of wind turbines and power transmission design by rational construction of the spatial structure of the rack and the construction of a multi-threaded;
  • improving the safety of the service of wind turbines due to the formation in a gondola service corridors and ensuring maintainability;
  • decrease the complexity of installation and maintenance of wind turbines.

The goal is not achieved simply the sum of the known results, required a comprehensive solution, involve an inventive step.

The goal is achieved by the fact that the wind power plant comprising a tower, a nacelle with a supporting-turning device, wind wheel shaft, missed inside the nacelle frame, clutches for coupling and the generator is provided with a dispenser formed combined with the multiplier, as a single dispensing multiplier including input low-speed shaft with a centrally located large gear and rows of the output of high-speed shafts with small gears, peripherally mounted about the longitudinal propeller axis at the distances defined by the radius of the large input and radii low output gears and related mechanisms and units, components of each of the plurality of power streams, inscribed with their longitudinal axes in an edge of a rectangular prism, oriented parallel to the axis of the propeller, the beam frame is a multi-tiered structure formed by a number of longitudinal, parallel beams rigidly connected by transverse struts power, and having regard to the "U" -shaped shape at the base with a central aperture, the mechanisms and devices constituting the energy flow, placed on the frame in the form of separate rows to form a gondola between the threads of the central service corridor associated through frame opening with the interior of the tower, and peripheral corridors between energy flow and side walls gondola.

Additionally, the claimed technical solution turbine propeller shaft inside the nacelle is installed in front of the load frame between the wind wheel and the multiplier by means of the power unit of the two bearings spaced flanges for power and propeller shaft. Front power propeller shaft flange is provided with guiding and docking ports for secure propeller hub.

Power-tier frame beam structure with an even number of energy flows performed "U" -shaped in each tier, and "T" -shaped at least one tier in an odd number of energy flows.

Central and peripheral service corridors are bounded below by a removable floor, attached to the frame, and the top ceiling of the nacelle.

The transverse dimensions of the central service corridor identified in diameter centrally located large gear and transverse dimensions of the mechanisms and components that make up the individual energy flows, the diameter of the sun gear is selected from the conditions of passage for maintenance through the central corridor.

Transverse dimensions defined peripheral service corridors movably person during maintenance.

The frame is equipped with a power rigging assemblies, adapted to access to the outside of the nacelle, and the docking flange for supporting-turning device arranged on the bottom side of the frame.

The accompanying drawings show: Fig. 1 wind power plant, general view; FIG. 2 wind power plant, Cut "V". See FIG. 1; FIG. 3 wind power plant, side view; FIG. 4 - wind power plant, top view; FIG. 5 Constructive transmission turbine circuit cut "GG". See FIG. 2

Windmills

Windmills

Windmills

Figures in the text indicated: 1 tower of the wind turbine, 2 nacelle of wind turbines, 3 - slewing bearings, 4 wind wheel, 5 shaft propeller, 6 frame 7 turns off the clutch, 8 generator 9 handout multithreaded multiplier 10 input hollow shaft multiplier 11 central large gear input speed shaft of the multiplier, 12 - off-speed shaft of the multiplier 13, the output gear multiplier, 14 energy flow, 15 longitudinal beam, 16 - transverse force bar, 17 of the frame opening 18 central service corridor (to allocate part of hatching ), 19, the internal volume of the tower, 20 - peripheral corridor service (one of the two shown in the drawing corridors highlighted major hatching), 21, the side walls of the nacelle, 22 - Bearing support shaft propeller, 23 front power flange shaft 5, 24 rear power flange shaft 5 25 guides docking stations, 26 - the plug propeller, 27 hatch, 28 removable floor, 29 push-coupling element 30 lifting units, 31 connecting flange for supporting-turning device 32 flywheel 33 additional self-multiplier 34 - actuator position control system blades 35 drive clutch off, 36 Technology overclocking-brake flow 37 brake pads, 38 position of the rotor blade control system 39 controlled brake 40 input coupling element speed leading clip, 41 central output coupling element 42 hollow output a high-speed shaft of the multiplier, 43 driven friction clutch plate 44 leading friction clutch plate 45 gear coupling, 46 output shaft, the coupling, 47 - running position blades control system screw (the figure shows the far right position when drive is switched off), 48 drive the motor position control system, 49 housing the drive position control system of blades, 50 removable cover, 51 upper stage motor 52 coupling, 53 rod drive turning propeller blades 54 - the worm gear in the drive rotation of the blades, 55 motor coupling off, 56 mobile gear, 57 a brake pulley, combined a toothed wheel.

The wind power plant comprises a tower 1, a nacelle 2 with supporting-turning device 3, the wind wheel 4 with the shaft 5, skipped inside the nacelle 2, the frame 6, clutches 7 for coupling the generator 8, a dispensing device configured combined with the multiplier 9, in the form of a single dispensing threaded multiplier comprising an input output shaft 10 with a centrally located large gear 11 and the series output speed shafts 12 with the small gears 13 circumferentially mounted about the longitudinal propeller axis at distances determined by the radius of the large inlet 11 and radii low output 13 of gear wheels, and related mechanisms and units that make up each of the plurality of power streams 14, inscribed with their longitudinal axes in an edge of a rectangular prism, oriented parallel to the axis of the propeller, the frame 6 is a multi-tiered beam structure formed by a number of longitudinal, parallel bars 15, rigidly connected to the lateral force resistant 16, and in terms of having a "U" shape at the bottom with a central opening 17, the mechanisms and devices constituting the energy flows 14 are placed on a frame 7 forming individual rows in the gondola between threads 18 of the central service corridor associated through opening 17, the frame 6 with the interior of the tower 19 1, and 20 between the peripheral corridors energy flows and the sidewalls 21 of the nacelle. The shaft 5 inside the nacelle of the wind wheel 4 is installed in front of the load frame 6 between the wind wheel 4 and the multiplier 9 by means of the power unit of the two bearings 22, spaced apart to force the flanges 23 and 24 propeller shaft 5 4. Front power flange 23 of the shaft 5 is provided with propeller guiding and docking units 25 to secure the 26 propeller hub.

Power 6-tier frame beam structure with an even number of energy flows performed "U" -shaped in each tier, and "T" -shaped at least one tier of an odd number of energy flows.

Frame 6 is provided with a manhole 27 set at the place of its central opening 17 (in the drawing the door is not shown).

Central 18 Field Service 20 corridors are bounded below by a removable floor 28 fixed to the frame 6, and on top of the ceiling of the nacelle 29.

The transverse dimensions of the central service corridor 18 defined centrally located large diameter gear 11 and the transverse dimensions of the assemblies and mechanisms that constitute the individual energy flows 14, wherein the diameter of the sun gear 11 is selected from conditions for maintenance passage.

The transverse dimensions of the peripheral service corridors 20 defined movably person during maintenance.

The frame 6 is provided with a power rigging nodes 30, adapted to access them outside the nacelle 2 and the docking flange 31 under the support-rotating device 3 is arranged on the bottom side of the frame 6.

Wind Turbine works as follows.

Wind wheel 4 rotates shaft 5 is mounted in the bearings 22 and 45 through a gear coupling the input shaft of the multiplier 10. From the central large gear 11 rotation is transmitted to the multiplier 9 at a small output gears 13 and from there through the hollow output shafts 12 to the clutch shuts 7. clutch output shaft 41, passed through the hollow shaft 12 transmits the rotation multiplier on additional autonomous multiplier 33, then 32 and the flywheel generator 8.

the position control system of the blades produces blades rotate through the mechanism, located in the hollow shaft and the floor of the dispenser multiplier propeller shaft. Due to this regulated power delivered to the power generators and the maintenance carried out the necessary speed propeller, generators and accordingly to stabilize the frequency of generated current.

The blades of propeller thrust through 53 are associated with the screw 47, and he, in turn, with the worm gear 54, worm and through electromagnetic coupling with the drive motor 48. (For details, structure and operation of the position control system propeller blades used in wind power installation are considered in the order N 94044922/06/045696 from 29/12/94, the same applicant).

constructive scheme turbine transmissions

When connecting one of the actuator motor 48 is driven to rotate the worm wheel 54. See FIG. 5, progressively moving the screw 47 associated with the rod 53 placed in the hollow propeller shaft 5. Link 53 is associated with the blade pivot linkage mechanism or a gear type (its specific implementation may be different, it is an independent solution, and is not the subject of this application). For example, the thrust 53 is pivotally connected to the lever, firmly fixed on the rotary blade Mahe, or pull 53 through a toothed rack engages with the gear and mounted on a rotary blade Mahe.

Loads caused by the wind turbines are perceived first propeller shaft 5, which is mounted at the power unit through the medium in front of the load frame 6. The connection shaft 5 and 10 through a toothed coupling 45, which allows a certain amount of skew shafts allowed to unleash the input shaft 10 from the multiplier impact bending moments and shear deformation, and to eliminate distortions and deformations of the large gear at the multiplier effect on the propeller shaft of the propeller load and thus provide favorable conditions of work with the given multiplier durability.

Perception of wind loads and loads that arise during operation of the wind wheel, the power unit is carried out of the two bearings 22 (front and rear), mounted in front of the load frame. In front of the support applied angular contact bearings for the perception of the propeller thrust and radial bearing in the rear.

Front power flange 23 of the shaft 5 propeller is made with the guide and docking units to facilitate installation operations hub propeller for installation of wind turbines. As shown in FIG. 1, and as seen in FIG. 3, 4, front power propeller shaft flange 23 is located outside the nacelle, which provides mounting for the front propeller hub flange 23.

And the reaction moments produced by the transmission power distributing multiplier 9 are perceived power set frame 6 consisting of longitudinal and transverse beams 15 and vertical struts 16. The power frame is made multistoried and has a "U" shape in the lower tier and subsequent top for an even number of energy flows, and "T" shape to follow the upper tier for the embodiment of an odd number of energy flows.

The moment passed clutch 7 is controlled by adjusting the magnitude of the axial force urging the friction plates 43 and 44 via the pressure element 29, consisting of the outer non-rotating and rotating inner parts, pursed spring. Turning off the clutch 7 is performed by a drive 35 comprising a motor 55, a reducer, screw and nut associated with the pressure plunger coupling member 29 (see. FIG. 5).

Loads caused by the energy flows, mounted parallel to the longitudinal beams 15, 16 are closed on the space of rectangular prismatic structure in which the prisms are formed by longitudinal beams 15 edges and the transverse force strut 16 supporting the streams 14, provide the necessary rigidity. FIG. 2, 3 and 4 shows an embodiment of a wind power plant with four energy flows, variants with six, or three to five threads.

The body of the dispenser multithreaded multiplier 9 is power and it mounted clutches 7, additional autonomous multipliers 33 and 34, the drive position control system blades. The presence of the multiplier in the power load circuit allows it to play the role of a power plate, providing the necessary rigidity of a multi-tiered space frame construction.

The frame is made of 2 power groups, linked by a common platform:

  • one power group includes a front-mounted power unit with supports 22, and the power casing multiplier 9, which are mounted on the one hand clutches, and other additional autonomous multipliers;
  • second power band formed rectangular prism installed in parallel longitudinal beams 15, which are mounted on the 14 energy flows, strengthened power vertical uprights and cross beams 16 connecting the longitudinal parallel beams 15, and gives the spatial structure of the power group of high stiffness and strength.

Described execution possible to concentrate in one place compact units and mechanisms with the greatest torque during operation of wind turbines and get to the exit on the high speed low torque range of distributed spatial design.

As a result, the spatial structure of the second prism power group greatly facilitated by achieving a high moment of inertia in bending, torsion.

For example, when the propeller shaft rotational speed n about 30 r / min. and N power of 150 kW, the current moment is



For vysokostnogo shaft of a number of shafts at a power output of the energy flux of 50 kW N n n n and 1500 rev / min. the current time is



In this way,



where K- total gear ratio multipliers 9 and 33, (K 50)

n n (1/3) × N (n n 50 kW).

This shows that the inventive solution provides an integrated effect from a position of strength and reliability of construction:

  • It reduces the moment transmitted to the frame structure by increasing the speed of rotation;
  • It reduces the time transmitted to the frame structure by reducing the power of a single energy flow;
  • It improves the perception of loads from the energy flow through the implementation of the spatial layout of the frame in the second group of power;
  • allows the use of the multiplier body as underpinning the power boards for high bending stiffness and torsional strength of the frame in the first group of nodes.

As a result, it was possible without compromising strength and stiffness properties of the frame m of wind turbines as a whole to perform in the central part of the frame opening 17 that provides access to the internal volume 19 of the tower from the gondola for human passage or movement of goods, but also form a central corridor of service 18, from which provided the person access to the energy flow 14 cm. area, selected in FIG. 4 of a patterned, a control system 34 position of the rotor blade, dispensing multiple of 9, 7, clutches, brake-overclocking technology stream 36 as a part of energy flows 14.

(As used herein, the transmission device and the implementation of energy flows: operating electricity-generating and technological - dispersal-braking is considered to a limited extent, by way of illustration for work and apparatus claimed wind turbine This is dedicated to another application by the same applicant on the "Wind Turbine", aimed. VNIIGPE in ref. of N 35 / 4-95 from 04.18.95 city).

From the central corridor 18 provided human access to offshore service corridors 20 cm. The allocation of large shading in Fig. 4, formed between the energy flow and the walls of the nacelle 14 (the latter not shown). The floor in the corridors of service sewn removable sheet 28.

The transverse dimension selected service corridors for the central corridor 18 with one side of the passage of human conditions given norms ergonomic requirements, for example it is 0.8 m; this figure is the objective and can be considered as a design parameter; and the other based on the size of the central large gear 11 of the multiplier 9 and the transverse dimensions of the energy flows mechanisms 14. Rather, the large size of the central gear 11 of the multiplier is determined based on the passage of human and transverse dimensions of 14 energy flow mechanisms.

The transverse dimension of the peripheral corridors 20 is selected from the more stringent restrictions on the ergonomic requirements of the conditions of human movement, as the transverse dimension of the nacelle of wind turbines is limited by transportation conditions means of transport, and is 0.4 m at ground level.

Created in the inventive wind turbine service space allows maintenance, repair and maintenance work at all stages of installation and in all modes of operation of the wind turbine.

The central opening of the frame 17 can be mounted hatch, which allows the internal volume of the nacelle covering and isolating it from the tower volume.

Rotating turbine nacelle in the horizontal plane provided by slewing device 3 is docked with gondola flange 31 formed on the underside of the frame 6.

To make loading and unloading operations and the mounting frame is equipped with a power rigging nodes 30, adapted to access them outside the nacelle, which provides the ability to move the gondola as a single module, and improves performance and installation works (in the drawings are not shown, ie. To. Represent standardized nodes in a conventional, known from the literature, performance).

It is important for the inventive solution is to install them on the frame and allowing access to the outside of the nacelle.

The opportunity of a smooth through turns off the frictional torque transmission clutch 7 from the output shaft 12 of the dispensing multithreaded multiplier 9 autonomous multiplier 33 or, as an option on enhancing the gearbox, and further through the flywheel generator (this option concerns the possible modes of operation of the wind wheel with variable rotation speed "stepwise variable" for maximum power takeoff from vetropotokah, in this case, instead of an additional autonomous multiplier 33 can be used for gearboxes (overdrive) or the multiplier 9 may be formed with a variable gear ratio).

Multiplier allows mechanical brake in association with the required number of closed and open or only open-loop flow streams, including emergency braking.

Wind turbine allows almost post power, electricity and even electronic control system compact in the gondola as the mechanisms and power flow devices are directed to one and the same side of the draw multithreaded multiplier 9 and are arranged in parallel to each other, which allows for the spatial arrangement of transmission and electric power units of wind turbines in the nacelle, thereby achieving convenient maintenance, reduced dimensions of the nacelle and to facilitate repairs.

The ability to selectively enable or disable any of the working energy flow as necessary in conjunction with other benefits of the installation allows, for example, even to work on a single workflow at fault others. This electricity is generated and can be carried out repair of faults to shut down the flow.

Thus, in view of the above it is possible to enhance the reliability, service life, maintainability wind turbines. Accordingly, it increases the number and reduces the cost of electricity generated by wind turbines.

At the same time reduced repair costs in the operation of wind turbines.

Increased resource of wind turbines, for example, when the power developed by the wind wheel less than nominal, it is not necessary to include all workflows, thereby achieving resource conservation, and for long periods of low wind speeds possibly replaceable consistent use of flows in order to develop rational resource.

The claimed device is targeted primarily for use in low-speed vetropotokah and the needs of the consumer stand-alone or network, for which the requirements for wind turbines higher than in the classical case.

The claimed device is progressive, and its use allows to achieve an object of the invention:

  • It increases the reliability of wind turbines, reduces the size of the nacelle of wind turbines and reduces material consumption through the implementation of multi-threaded construction and application of dense layout transmission and power equipment in the nacelle of wind turbines;
  • It increases the lifetime of wind turbines due to the rational use of workflows to generate power, to give an autonomous consumer in terms of variable consumption and lowers the threshold vetropotokah speed at which economically produce electricity, bringing it to 2,0.2,8 m / s, for example, the one stream;
  • It reduces the load acting on the components and assemblies of wind turbines and power transmission design by rational construction of the spatial structure of the rack and the construction of a multi-threaded;
  • improves the security service of wind turbines due to the formation in a gondola service corridors and ensuring maintainability to meet ergonomic requirements;
  • It reduces the complexity of installation and maintenance of wind turbines.

CLAIM

1. The wind power plant comprising a tower, a nacelle with a supporting-turning device, wind wheel shaft, missed inside the nacelle frame with longitudinal beam and mounted on it inside the nacelle multiplier with low-speed input shaft connected to a large gear, clutches and clutch generator, characterized in that it is provided with a dispensing device configured combined with a multiplier in the form of single dispenser threaded multiplier comprising an input output shaft connected to a central large gear series output speed shafts with small gear wheels peripherally mounted about a longitudinal propeller axis at distances defined radius of a large input and radii low output gears and related mechanisms and units, each consisting of a number of energy flows, inscribed with their longitudinal axes in an edge of a rectangular prism, oriented parallel to the axis of the propeller, the frame is a multi-tiered beam structure formed by a number of longitudinal parallel spaced beams rigidly connected transverse force bar, and having a plane U-shape with a central opening in the base, the mechanisms and devices constituting the energy flow, placed on the frame in the form of separate rows to form a gondola between the threads of the central service corridor related through frame opening with the interior of the tower, and peripheral corridors between energy flow and the side walls of the nacelle.

2. Apparatus according to claim 1, characterized in that the propeller shaft is installed inside the nacelle in the front of the rack between the wind wheel and the power unit at the multiplier means of the bearings of the two spaced flanges power to the propeller shaft.

3. Apparatus according to claim 1 or 2, characterized in that the front power propeller shaft flange adapted guides and docking units for fixing the propeller hub.

4. The apparatus of claim. 1, characterized in that the beam power tier frame structure with an even number of energy flows made U-shaped in each tier.

5. The apparatus of claim. 1, characterized in that the beam power tier frame structure in at least one tier of an odd number of energy flows formed L-shaped.

6. Apparatus according to claim 1, characterized in that the frame is provided with a hatch therein mounted on the frame at the place of its central opening.

7. Apparatus according to claim 1, characterized in that the central and peripheral service corridors bounded below by removable floor fixed to the frame, and the top ceiling of the nacelle.

8. Apparatus according to claim 1, characterized in that the transverse dimensions of the central service corridor defined centrally located large diameter gear and the transverse dimensions of the aggregates and mechanisms that constitute the individual energy flows.

9. Installation according to claims. 1 and 8, characterized in that the diameter of the sun gear of the selected conditions for maintenance passage.

10. Installation according to claims. 1 and 8, characterized in that the transverse dimensions of the peripheral service corridors defined movably person during maintenance.

11. Apparatus according to claim 1, characterized in that the central service corridor associated with peripheral corridors.

12. Apparatus according to claim 1, characterized in that it is provided in the frame power rigging nodes adapted to access to the outside of the nacelle.

13. Apparatus according to claim 1, characterized in that the frame is provided with a docking flange support-rotating device arranged with the lower side of the frame.

print version
Publication date 02.04.2007gg