JP2015042866A - Hydraulic transmission mechanism and wind power energy utilization device including hydraulic transmission mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydraulic transmission mechanism capable of supplying a hydraulic oil stably and surely, even when twist such as relative rotation occurs between driving equipment side for driving by hydraulic pressure and a power source side for generating hydraulic power.SOLUTION: In a hydraulic transmission mechanism 12, a plurality of tubes 81, 82, 104 are communicated with introduction parts 87, 88, 89 for introducing a hydraulic oil on which hydraulic pressure is applied from a power source side, and the plurality of tubes 81, 82, 104 are inserted concentrically in multiplicity so as to form a plurality of flow passages of the hydraulic oil introduced from the introduction parts 87, 88, 89, so that the hydraulic oil can be sent out to driving equipment 16 from sending-out parts 81a, 93a, 94a provided at the tubes 81, 82, 104 respectively. Each of the plurality of tubes 81, 82, 104 can be rotated with a shaft center common to them being a rotation center line coinciding with the rotation center line of relative rotation between the power source side and the driving equipment 16 side.

Description

  The present invention includes a hydraulic power transmission mechanism and a power transmission field using the hydraulic power transmission mechanism, or a wind turbine device mounted on a floating body that is landed or floated on land or ocean to generate power, supply water, circulate water, The present invention relates to a wind energy utilization device used as a drive source for water purification, other power, and an energy conversion device.

  Today, there is a need for energy saving, but how to efficiently transmit power economically and exert energy saving effects has long been a subject of research and development in the field of conductive devices. Even in the case of hydraulic transmission systems that have been used for a long time and possess technology close to the limit, how to reduce the twisting and leakage accidents of the hydraulic sliding rotary shaft, simplify maintenance, inspection, maintenance work, etc., durability, and economic efficiency It is a big problem left in the future whether to operate a device satisfying reliability and efficiency.

  In addition, the global warming and various destruction of the global environment have been screamed in the past, but these problems have become increasingly serious in recent years. These are also closely related to the problem of carbon dioxide emissions from the use of fossil energy resources. The fossil energy resources include quantitative problems such as exhaustion problems. While energy and resource conservation are screamed for these problems, early introduction and early commercialization of clean natural energy that does not emit carbon dioxide has become a global issue.

  In addition, electric energy is supplied by nuclear power generation. Problems related to the use of nuclear power include radioactivity that can occur due to the aging of nuclear reactors such as nuclear power plants, earthquakes, tsunamis, natural disasters, and man-made disasters. There is a leakage accident. As is well known, radioactivity has a major negative impact on the ecological environment, and when a radioactivity leak accident occurs, the adverse impact on the living environment of local residents is extremely large, as can be seen from examples of the Fukushima nuclear accident. The damage can be serious.

  In addition, wind power energy utilization equipment on land in Japan has pollution problems such as low-frequency noise problems as the equipment becomes larger. In Japan, where the country is small, it is difficult to establish a large-scale new location on land based on these problems. However, due to the Fukushima nuclear accident, etc. It is a situation that must not be. Thus, there is an urgent need for significant improvement and promotion of conventional devices in terms of safety, stability, efficiency, maintainability, etc. while taking into account noise pollution and environmental pollution problems.

  71% of the earth's surface area is the sea, and Japan is an oceanic country surrounded by the sea on all sides. In addition, Japan is one of the world's largest countries, taking into account the area of territorial waters and exclusive economic zones, so if you want to make effective use of the sea and install a landing or floating offshore wind energy utilization device on the ocean For example, not only can pollution problems such as low-frequency noise be solved, but it can also be scaled up, so that wind energy can be sufficiently used as an alternative energy for nuclear power generation.

  In addition, the development of wind energy utilization devices on remote islands, etc., enables residence on uninhabited islands where people can't live, whether on land or offshore, such as the Senkaku Islands and the Ogasawara Islands. In addition, in order to increase the possibility of these islands as fishing grounds and sightseeing spots, further improve transportation and convenience of islanders by saving oil transportation costs and energy resources on the remote islands and expanding tourism and fisheries. It is necessary to use the sea effectively in order to improve or widen public activities and decentralize urban population.

  Even though there are many ocean energy resources such as wave energy, wind power, sunlight, ocean currents, and tides in the ocean, there is a device that can use these cheaply, safely, efficiently, and effectively as a stable energy source. It is in an undeveloped situation. Therefore, it is necessary socially and economically to develop it quickly and effectively use it for human life. As the first step, the development of the most familiar offshore wind energy utilization device is urgently desired. ing. At the same time, it is necessary to simplify maintenance work and the like in a hydraulic transmission device for transmitting wind energy, improve durability, and improve economy, reliability, and efficiency.

JP 2012-193676 A

  The hydraulic device in the wind power generator described in Patent Document 1 is a general one that has not been described in detail and has been conventionally described. These devices are large-scale hydraulic transmission devices, and there is room for improvement in durability and reliability.

  In addition, conventional wind energy utilization devices have not been able to operate sufficiently or be destroyed if they are exposed to strong wind and wave energy and their wind pressure on land or ocean. There wasn't. In addition, in the case of a wind energy utilization device equipped with a power generation device, if the wind speed exceeds a certain value due to the curve output area due to the rated output limitation of one generator, and the cut-in and cut-out areas, the rotation of the windmill must be stopped. There was a problem of being uneconomical.

  Also, in order to prevent tilting and overturning damage of the device, heavy objects such as generators and gearboxes should be installed as low as possible in the tower base, lowering the center of gravity of the entire device, improving the stability of the device, mechanism It was necessary to simplify the system, improve maintenance, and improve efficiency.

  Especially for offshore wind energy utilization equipment, etc., the mechanism will be simplified as it is put into practical use and the scale of the equipment is increased. The equipment will be manufactured, assembled and integrated at a land factory such as a dock as much as possible, and maintenance and operating costs will be increased. In all cases, leading to a reduction in costs leads to a reduction in power generation costs, etc., so there was also a problem that field work on the ocean had to be reduced as much as possible.

  In addition, when installing, transporting, and towing offshore wind energy equipment, it is easy to respond to unexpected low atmospheric pressures and gusts. It was necessary to avoid the work as much as possible, and to set it up as a device that could handle the work in a low place.

  In addition, in the circulation of water in the ocean, dams, lakes, etc., the power of the purification device, the efficiency of the energy transmission, the generator of the conventional wind power generator is installed at the high place of the device and convenience Most of these are done by power conversion. However, from the viewpoint of energy saving and resource saving, in power sources such as water circulation, water supply, and purification, it is required to reduce the process loss and improve the efficiency by reducing and simplifying the power transmission process.

  The present invention has been made paying attention to such problems and problems of the conventional technology, such as relative rotation between the drive device side driven by hydraulic pressure and the power source side generating hydraulic power. It is an object of the present invention to provide a hydraulic transmission mechanism that can supply hydraulic oil stably and reliably even when torsion occurs.

  In addition, by installing this hydraulic transmission mechanism and transmitting the power from the windmill to the drive equipment and driving it, a wind energy utilization device that increases the operating rate and realizes a high-efficiency and low-cost drive source cost and low-cost power generation cost. The purpose is to provide.

The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] A hydraulic transmission mechanism (12) in a device in which a power source side and a drive device (16) side driven by hydraulic power from the power source can be relatively rotated,
An introduction part (87, 88, 89) for introducing hydraulic oil with hydraulic pressure from the power source side is communicated with the introduction part (87, 88, 89), and from the introduction part (87, 88, 89) A plurality of pipes (81, 82, 104) inserted concentrically to form a plurality of flow paths of the introduced hydraulic oil, and the drive device (for each of the pipes (81, 82, 104)) ( 16) and a delivery section (81a, 93a, 94a) through which hydraulic oil is delivered,
The flow path includes a space formed between each outer peripheral surface of the plurality of tubular bodies (81, 82) and an inner peripheral surface of one outer tubular body (82, 104), and the plurality of tubular bodies. (81, 82, 104) and the inside of the tubular body (81) disposed on the innermost side,
Each of the plurality of tubes (81, 82, 104) is rotatable with a common center axis as a rotation center line that coincides with a rotation center line of relative rotation between the power source side and the drive device side. A hydraulic transmission mechanism (12) characterized.

[2] A wind energy utilization apparatus (A,) including a wind turbine (9) having a plurality of blades (6) that rotate when receiving wind of a predetermined wind force or more in a nacelle (4) supported by a tower (2). B, C, D, E)
A base (2a) on which the tower (2) is erected and a driving device (16) is disposed, and a nacelle (4) that converts rotation of the windmill (9) into hydraulic power. A hydraulic pump (11), and a hydraulic transmission mechanism (12) according to item [1] for transmitting hydraulic oil from the hydraulic pump (11) to the drive device (16),
The nacelle (4) is supported by the tower (2) so as to be relatively rotatable,
Use of wind energy, wherein the hydraulic transmission mechanism (12) is arranged such that the common axis coincides with a rotation center line of relative rotation between the nacelle (4) and the tower (2). Equipment (A, B, C, D, E).

  [3] The wind energy utilization apparatus (2) according to item [2], wherein the windmill (9) is provided such that the rotor rotation shaft (7) of the windmill (9) can be adjusted in the vertical direction. A, B, C, D, E).

[4] The windmill (9) includes a lifting device (58, 212b) for adjusting the angle of the rotor rotation shaft (7) in the vertical direction,
The lifting device (212b) is disposed so as to move up and down the rotor rotating shaft (7) having the plurality of blades (6) and the rotor rotating shaft (7) at the rear end side opposite to the front end side. The wind energy utilization apparatus according to item [3] (A, B, C, D, E).

  [5] A hydraulic oil supply flow path (134) for supplying hydraulic oil from the hydraulic pressure transmission mechanism (12) to the drive device (16), and hydraulic oil after the drive device (16) is operated as the hydraulic pressure. At least one bypass channel (300, 301, 302, 303) and the bypass channel (300, 301, 302, 303) between the hydraulic oil recovery channel (136) returning to the transmission mechanism (12) In the item [2], [3] or [4], a bypass valve (311, 312, 313) for opening and closing the bypass flow path (300, 301, 302, 303) is provided. The described wind energy utilization device (A, B, C, D, E).

  [6] On-off valves (321, 322) for opening and closing the flow path (134, 136) in at least one of the upstream flow path (134) and the downstream flow path (136) of the drive device (16). When the drive device (16) is plural, the open / close valves (321, 322) are provided for each drive device (16). The wind energy utilization apparatus as described in any one (A, B, C, D, E).

  [7] The hydraulic pump (11, 211) is disposed on the opposite side to the windmill (9) side with a rotation center line of relative rotation between the nacelle (4) and the tower (2) as a boundary. The wind energy utilization apparatus (D, E) according to any one of items [2] to [6], characterized in that:

[8] The windmill (9) includes a compression mechanism (Po, Ps) provided on the rotor rotation shaft (7),
The wind power according to any one of items [3] to [7], wherein an inclination angle of each blade (6) of the wind turbine (9) can be changed by the compression mechanism (Po, Ps). Energy utilization device (A, B, C, D, E).

The present invention operates as follows.
In the device in which the power source side and the drive device (16) side driven by the hydraulic power from the power source are relatively rotatable, the power source and the drive are driven when the power source side and the drive device (16) side are relatively rotated. Although the position of the device (16) changes, according to the hydraulic transmission mechanism (12), the plurality of tubes (81, 82, 104) forming the flow path of the hydraulic oil are connected to the power source side and the drive device side. The rotation center line of the relative rotation can be rotated as the rotation center line. For this reason, since the relative position of the delivery device (81, 93a, 94a) through which the hydraulic oil is sent to the drive device (16) and the drive device (16) does not change, the hydraulic oil is stably and reliably supplied to the drive device (16 ) Can be supplied.

  In the wind energy utilization apparatus (A, B, C, D, E) including the windmill (9) having a plurality of blades (6) that rotate when receiving wind (F) that is greater than or equal to a predetermined wind force. The rotation of (9) is converted into hydraulic power using the hydraulic pump (11). The nacelle (4) on which the windmill (9) is mounted and the tower (2) that supports the nacelle (4) can be rotated relative to each other using the rotating pedestals (3a, 3b). It can be transmitted as power of the drive device (16) by the mechanism (12).

  In the case where the hydraulic pump (11) is disposed on the opposite side of the wind turbine (9) from the rotation center line of the relative rotation between the nacelle (4) and the tower (2), the nacelle ( The balance of 4) is improved with the rotation center line as a boundary.

  Further, the wind turbine (9) can change the inclination angle of each blade (6) by a compression mechanism (Po, Ps) provided on the rotor rotation shaft (7) that rotates together with the rotor rotation shaft (7). In the case of a thing, since the inclination-angle of each blade (6) can be changed suitably according to the intensity | strength of a wind (F), while being able to aim at efficient use of a wind energy, the wind energy utilization apparatus by a strong wind Damage to (A, B, C, D, E) can be prevented.

  In the wind energy utilization apparatus (A, B, C, D, E), a tank for storing hydraulic oil is provided in an upper tank (131) provided in the nacelle (4) and a lower tank (132) provided in the base (2a) side. ), And the capacity of the lower tank (132) is made larger than the capacity of the upper tank (131) to reduce the weight of the upper tank (131). Thereby, the gravity center of a wind energy utilization apparatus (A, B, C, D, E) can be made low, and a wind energy utilization apparatus (A, B, C, D, E) can be installed stably.

  In addition, a hydraulic transmission ring (37) is provided on the rotor rotation shaft (7) provided substantially horizontally, and the main body (38) of the hydraulic transmission ring (37) is rotated integrally with the rotor rotation shaft (7). The outer casing (43) of the hydraulic transmission ring (37) is supported on the nacelle (4) side, and the outer periphery of the main body (38) of the hydraulic transmission ring (37) and the outer casing (43) of the hydraulic transmission ring (37). The inner surface of the oil seal (45a, 45b, 45c) constitutes an annular sliding mechanism. By supplying oil to the outer casing (43) supported on the nacelle (4) side, the windmill (9) The inclination angle of the blade (6) of the windmill (9) can be changed by a compression mechanism (Po, Ps) provided on the rotor rotation shaft (7) that rotates together with the rotor rotation shaft (7).

  Next, receiving the rotating circle of the rotor diameter (RD) at the end of the blade (6) when the pressure of the cylinder (27) or spring (122) provided in the compression mechanism (Po or Ps) is strong and the tilt angle does not change. Comparing the wind area and the wind receiving area of the circle when the tilt angle changes (RD ′), the wind receiving area when the tilt angle changes (RD ′) has a smaller effect.

  When the rotor rotation area (wind receiving area) is reduced due to the change of the tilt angle, the received wind force is reduced accordingly, so that it can withstand strong winds and is reduced due to strong winds (RD '). Even with a wind receiving area, it is possible to use and absorb a certain amount of wind energy. That is, although the efficiency is reduced, the wind is strong, so that a considerable amount of wind receiving effect can be secured. Here, the generator starts operating at the rated output.

  If the wind (F) becomes weaker and the received wind force received by the blade (6) becomes smaller, than the received wind force received by the previously received wind receiving area of (RD ′), it is within the compression mechanism (Po, Ps). The pushing back force of the cylinder (27) or the spring (122) becomes larger, and the piston rod (29) or the outer rod (125) is pushed back and transmitted to the arm (19b) via the arm (22) and the blade ( 6) The tilt of the tilt angle is canceled and the original state (RD) is restored.

  In addition, the crane (140) is provided inside the nacelle (4) of the wind energy utilization apparatus (A, B, C, D, E) of the present invention, and the crane is housed inside the nacelle (4) during operation, and maintenance work is performed. Occasionally, the beam of the crane (140) is extended and used, so that work can be performed very conveniently for assembly, installation, maintenance, inspection, maintenance and the like of the apparatus.

  Since there is no need to bring in heavy equipment such as large tow trucks or crane ships from outside, buffer accidents between this equipment and crane ships have been reduced, resulting in a significant reduction in costs and a reduction in accidents. It is possible to greatly reduce the cost of the utilization devices (A, B, C, D, E) and the power generation cost.

  Therefore, the wind turbine (9) adjusts the wind (F) to the wind turbine (9) by adjusting the tilt angle (β) of the blade (6) in the leeward direction where the wind (F) comes in accordance with the wind pressure. In order to increase efficiency by spreading the receiving blade (6) to the maximum as shown in (RD), on the other hand, this is intentionally changed to strong winds during typhoons, etc. (RD ') or (RD ") In this way, the wind receiving area is reduced and automatically controlled by forced control operation to prevent damage to the equipment while deteriorating the efficiency, while increasing the stability of the rated output and the operating range. It can spread and absorb a huge amount of wind energy from light to strong winds efficiently and within a sustainable range.

  According to the hydraulic transmission mechanism according to the present invention, in the device in which the power source side and the drive device side driven by the hydraulic power from the power source can be relatively rotated, the operation of the hydraulic transmission mechanism is performed even during relative rotation. Since the relative position between the delivery part for sending out the oil and the drive device is substantially constant, the hydraulic oil can be reliably supplied to the drive device, and the drive device can be driven stably and reliably.

  Since heavy parts such as generators, hydraulic motors, and gearboxes in high places can be moved from the top of the tower to the vicinity of the tower base, work can be greatly reduced in terms of maintenance, inspection, maintenance, etc. it can.

  The low-profile placement of heavy objects keeps the position of the center of gravity of the entire device low, improving stability and safety against wind pressure, shaking, vibration, etc. during operation, transportation, towing, earthquake, tsunami, and typhoon. For this reason, not only will it lead to an increase in efficiency during operation, but it will also be possible to reduce the number of members such as tower members and members of the entire device, thereby reducing the manufacturing cost of the device and drastically reducing power generation costs. .

  Since the hydraulic transmission system is configured, the rotational torque of the entire floating body device is eliminated compared to the floating body type single shaft system in the vertical axis system, and the mooring device and the like can be simplified and reduced in weight, which is economical.

  According to the wind energy utilization apparatus equipped with the hydraulic transmission mechanism according to the present invention, when the wind is strong, such as during a typhoon, the blade tilts toward the leeward side according to the wind force, so there is little fear of the blade being destroyed. In addition, most of the conventional general wind energy utilization devices cannot be used after the blade is rotated by a cutout device to protect the blade at a constant wind speed. In the energy utilization equipment, even in the cut-out area, the blade is fully loaded, tilted and operated according to the load, maintained at the rated output, and can be restored sensitively after passing. Can be absorbed to the maximum.

  In addition, since a crane is incorporated in the apparatus, it can be effectively used for assembling, installing, maintaining, inspecting, and maintaining the apparatus, so there is no need to procure large-scale external wreckers, heavy machinery, crane ships, and the like. In addition, the reduction and simplification of local construction work in rough sea areas such as wind waves and swells increases the operating rate, and as a total system, it excels in safety, stability, economy, etc., and drastically reduces equipment manufacturing costs and power generation costs. Can do.

It is a schematic longitudinal cross-sectional view which shows the structure of the hydraulic power transmission mechanism which concerns on one embodiment of this invention, and the wind energy utilization apparatus provided with this hydraulic pressure transmission mechanism. It is a longitudinal cross-sectional view which shows the structure of the braid | blade, hub, a hydraulic-transmission ring, a hydraulic compression mechanism, a support apparatus, and a rotor rotating shaft main part in the wind energy utilization apparatus of FIG. It is a ZZ arrow line view in FIG. It is sectional drawing which shows the hydraulic-pressure transmission mechanism which concerns on one embodiment of this invention in the state equipped with the wind energy utilization apparatus. It is a YY arrow line view in FIG. It is a longitudinal cross-sectional view which shows the wind energy utilization apparatus of a different aspect equipped with the hydraulic-pressure transmission mechanism which concerns on one embodiment of this invention. It is a longitudinal cross-sectional view which shows the wind energy utilization apparatus of the further different aspect equipped with the hydraulic-pressure transmission mechanism which concerns on one embodiment of this invention. It is a longitudinal cross-sectional view which shows the wind energy utilization apparatus of the further different aspect equipped with the hydraulic-pressure transmission mechanism which concerns on one embodiment of this invention. FIG. 7 is an enlarged explanatory view showing a configuration in which a spring compression mechanism different from the hydraulic compression mechanism in FIG. 2 is installed in the rotor rotation shaft of the wind energy utilization apparatus shown in FIG. 6. It is a longitudinal cross-sectional view which shows the wind energy utilization apparatus of the further different aspect equipped with the hydraulic-pressure transmission mechanism which concerns on one embodiment of this invention. It is a WW arrow directional view in FIG. It is a TT arrow line view in FIG. It is the schematic which illustrates the implementation state in the sea of the wind energy utilization apparatus provided with the hydraulic-pressure transmission mechanism which concerns on this invention. It is the schematic which illustrates the other implementation state on the ocean of the wind energy utilization apparatus provided with the hydraulic-pressure transmission mechanism which concerns on this invention.

  The hydraulic transmission mechanism according to the present invention and the wind energy utilization device using the hydraulic transmission mechanism are installed in areas where the durability and reliability of the hydraulic apparatus are required, and on land, coastal areas, dams, lakes, continental shelves, etc. Thus, wind energy is used effectively. Hereinafter, the hydraulic transmission mechanism according to the present invention will be described by exemplifying the one provided in a wind energy utilization device used on the ocean as a floating device on the ocean.

The preferred embodiment of the present invention will be described below with reference to the drawings.
1 to 5 show an embodiment of the present invention.
FIG. 1 is a longitudinal sectional view showing a configuration of a hydraulic pressure transmission mechanism and a wind energy utilization apparatus A including the hydraulic pressure transmission mechanism according to a first embodiment of the present invention, and FIG. The longitudinal section which shows the detailed structure of the braid | blade, the hub, the hydraulic transmission ring, the hydraulic compression mechanism, the support device, and the main part of the rotor rotation shaft in the hydraulic transmission mechanism according to the embodiment of the present invention and the wind energy utilization apparatus A using the hydraulic transmission mechanism FIG. 13 and 14 illustrate not only the hydraulic transmission mechanism according to the present embodiment but also an outline of a wind energy utilization apparatus including the hydraulic transmission mechanism according to the present invention.

  As illustrated in FIG. 1, in the wind energy utilization apparatus A, a tower 2 is erected substantially vertically on the upper surface of the floating body 1 above the floating body 1 on the sea surface SW on the ocean. A rotating pedestal 3a is provided on the upper portion of the tower 2, and a pedestal 5 of the nacelle 4 is disposed on the upper portion of the rotating pedestal 3a with the center line 2c of the tower 2 as a reference axis. A rotating pedestal 3b corresponding to the rotating pedestal 3a is provided. Thereby, the nacelle 4 can freely rotate relatively with the center line 2c of the tower 2 as a rotation axis.

  The floating body 1 is connected to a resistance plate weight or the like so that the tower 2 is always kept vertical, and is not so shaken or vibrated even during a typhoon or the like. Further, at the time of maintenance or the like, the relative rotation of the rotating pedestal 3b corresponding to the rotating pedestal 3a and the nacelle 4 is stopped, and the direction of the nacelle 4 is controlled by a lock mechanism for securing safety or a crane operation provided in the nacelle 4. A turning mechanism or the like for changing the position is also provided.

  A windmill 9 is attached to the nacelle 4. In the windmill 9, a plurality of blades 6 that receive wind F and absorb wind energy gather in a hub 8 to form a rotor. The rotor rotation shaft 7 provided at the center of the rotor is disposed substantially horizontally. Each blade 6 is attached to a hub 8 so as to be tiltable with respect to the rotor rotation shaft 7. Further, an outer ring 31 of the rotor rotating shaft 7 is fixed to the outer periphery of the rotor rotating shaft 7, and a boss portion 17 a of the hub 8 is attached to the outer ring 31 with a set bolt 32 or the like.

  The rotor rotating shaft 7 is formed in a cylindrical shape, and is supported by a support device 10 disposed in the nacelle 4. The output end of the rotor rotating shaft 7 is connected to the hydraulic pump 11 mounted on the variable pedestal 72. The hydraulic pump 11 is one in which the rotational power transmitted from the rotor rotating shaft 7 is converted into hydraulic pressure. One end of the universal pipe 133 is connected to the discharge port of the hydraulic pump 11, and the other end is connected to the hydraulic transmission mechanism 12. The hydraulic pressure sent from the hydraulic pump 11 is transmitted to the cab 13 through a hydraulic piping 134 that descends substantially vertically in the tower 2 via the hydraulic transmission mechanism 12. A cab 13 is provided in a tower base 2a that serves as a base on which the tower 2 is erected, and this cab 13 is provided in the upper part of the floating body 1. A plurality of generators 16 are arranged inside the cab 13. The generator 16 is driven by hydraulic fluid supplied through the hydraulic pipe 134. The hydraulic oil after driving the generator 16 is sent to the hydraulic transmission mechanism 12.

  A piping 134 is drawn into the cab 13 and a hydraulic motor 14 is provided. A generator 16 is provided at the end of the rotating shaft 15a of the hydraulic motor 14 via a transmission 15b such as a clutch. . Alternatively, hydraulic power for rotating the oil feed pump 16 ′ for sending oil from the lower tank 132 to the upper tank 131 is branched from the pipe 134 and connected to the discharge collection pipe 135 of the hydraulic motor 14 via the hydraulic motor 14 ′. And connected to the lower tank 132. Further, the oil discharged by the rotation of the oil feed pump 16 ′ is filtered by a filter or the like, then passes through the pipe 136 and enters the upper tank 131 through the hydraulic transmission mechanism 12, the flexible hose 137, and the like.

  Therefore, when the rotor of the wind turbine 9 is rotated by receiving wind, the rotational force is transmitted to the hydraulic pipe 134 from the hydraulic transmission mechanism 12 provided substantially vertically in the tower 2 via the hydraulic pump 11, and the tower base 2a. The hydraulic motor 14 or 14 'is rotated in the cab 13 and the rotation is transmitted from the rotary shaft 15a to the generator 16 or the pump 16' via a transmission 15b such as a clutch. Thereby, the generator 16 rotates and is generated. Here, the upper tank 131 for storing hydraulic oil can be reduced in size and weight as much as possible, the heavy load is transferred to the lower tank 132, and the heavy load in the nacelle 4 is reduced, so that the overturning action against the shaking of the device can be reduced. .

  As shown in FIGS. 2 and 3, the blade 6 is pivotally supported by a pin 18 provided at a base end portion of the hub 8 on the main body 17 of the hub 8. The pin 18 supports the central portion of the boss 19 and enables the arm 19a and the arm 19b to rotate. A connecting end 19c of the arm 19b is rotatably connected to one end of the arm 22 by a pin 21a. The other end of the arm 22 is connected to a lug 24 provided on the slide arm 23 of the piston rod 29 of the hydraulic compression mechanism Po by a pin 21b. The bearing 33 of the slide arm 23 integrally wraps the boss portion 17 a of the hub 8, the end of the rotor rotating shaft 7, and the flange portion 26 a of the casing 26, and is fixed by a set bolt 34.

  A cylinder 27 is fixed by a support or the like in a casing 26 of a hydraulic compression mechanism Po provided in the rotor rotation shaft 7. The cylinder 27 is fixed to the boss portion 17 a of the main body 17 of the hub 8 via the flange portion 26 a of the casing 26. The piston 28 in the cylinder 27 is fastened to the slide arm 23 with a nut 30 via a piston rod 29. That is, the blade 6 is connected to the piston 28 of the hydraulic compression mechanism Po through the arm 19a, the boss 19, the arm 19b, the arm 22, and the slide arm 23. As a result, the piston 28 can be moved to tilt the blade 6 with respect to the rotor rotation shaft 7 provided substantially horizontally to a position indicated by reference numeral “6 ′” or “6” ”.

  Further, a brake ring 35 is fitted on the outer periphery of the boss portion 17a of the main body of the hub 8, and is fixed by a set bolt 32 or the like. A hydraulic brake device 36 provided on the nacelle 4 side via a support or the like is disposed on the outer periphery of the brake ring 35. The hydraulic brake device 36 is supplied with hydraulic oil from the pipe 141. A valve 142 is provided in the pipe 143 branched from the pipe 141. The proximal end of the hose 144 is connected to the distal end of the pipe 143, and the distal end of the hose 144 is connected to the hydraulic brake device 36. When the valve 142 is opened here, the hydraulic pressure is applied to the hydraulic brake device 36 via the pipe 143 and the hose 144, and the hydraulic brake device 36 is activated. Thereby, rotation of the windmill 9 can be stopped.

  A hydraulic pressure transmission ring 37 is disposed at an intermediate portion of the rotor rotation shaft 7. The rotor rotating shaft 7 is inserted into the main body 38 of the hydraulic pressure transmission ring 37. A boss portion 38a of the main body 38 of the hydraulic transmission ring 37 is fixed to the rotor rotating shaft 7 by a set bolt 39 or the like. As a result, the main body 38 of the hydraulic transmission ring 37 can rotate integrally with the rotor rotating shaft 7.

  Further, hydraulic oil grooves 40a and 40b are disposed in the outer ring of the main body 38 of the hydraulic pressure transmission ring 37, and hydraulic hydraulic oil flows through the grooves. Oil seals 45a, 45b, and 45c are disposed on the outer side of the outer ring of the main body 38. As a result, the hydraulic oil grooves 40a and 40b are sealed.

  The main body 38 of the hydraulic transmission ring 37 has a pore 41a, and the hydraulic oil groove 40a is connected to one end of the pore 41a. The other end of the pore 41a is connected to the side surface of the main body 38, and one end of the hose 42 is connected thereto. Further, the main body 38 is provided with a hydraulic oil groove 40b and a fine hole 41b, and a pipe 55 is connected to the fine hole 41b. The hydraulic transmission ring 37 is provided with an outer casing 43, and the outer casing 43 is attached to a fixed object on the nacelle 4 side via a support 44 or the like.

Here, the pipe 146 branched from the pipe 141 is provided with a valve 145 and a check valve 147, and is connected to the hydraulic oil groove 40 a via the hose 148 and the outer casing 43.
In addition, oil seals 45 a, 45 b and 45 c are provided inside the outer casing 43. The outer ring of the main body 38 of the hydraulic pressure transmission ring 37 provided on the rotor rotation shaft 7 slides and rotates with respect to the inner surfaces of the oil seals 45 a, 45 b, 45 c by the rotational movement of the rotor rotation shaft 7.

  Further, the rotor rotating shaft 7 has a hole 46 penetrating to the inside. A restriction orifice 47 and a check valve 48 are provided on the other end side of the hose 42 and are passed through the hole 46. This one end is connected to the pipe 49 inside the rotor rotating shaft 7. The pipe 49 is connected to a pore 50 provided in the cylinder 27.

  A safety valve 51 and an accumulator 52 are connected to the pipe 49. A piping 55 is also connected to the safety valve 51. The cylinder 27 is provided with a pore 27a and a pore 27b, a pipe 53a is connected to the pore 27a, and a pipe 53b is connected to the pore 27b. Further, a valve 54a is provided in the pore 27a, and a valve 54b is provided in the pore 27b. Further, the pipe 55 connected to the discharge port of the safety valve 51 is connected to one end of a fine hole 41 b connected to the hydraulic oil groove 40 b provided in the main body 38 of the hydraulic pressure transmission ring 37.

  Further, as shown in FIG. 1, a pipe 56 is provided below the outer casing 43, and piped to the lower tank 132 through the hose 139, the hydraulic transmission mechanism 12, and the pipe 134a. As shown in FIG. 2, the discharge ports of the pipes 53 a and 53 b are connected to the pipe 55, and used oil in the hydraulic circuit flows into the pipe 55.

Next, the operation and action of the hydraulic transmission ring 37 will be described below.
The pressurized oil sent to the pipe 141 pressurizes the hydraulic oil groove 40a when the valve 145 is opened, and the hose 42, the restriction orifice 47, the check valve 48, the pipe 49 through the pore 41a. Is supplied to one end side of the cylinder 27 via As a result, the piston 28 moves in the direction of the hub 8, so that the piston rod 29 and the arm 22 rotate the arm 19b, the boss 19, and the arm 19a. That is, as shown in FIG. 1, the angle of the blade 6 with respect to the rotor rotating shaft 7 is increased from β ″, β ′ to β, and the posture is changed in a standing direction.

  Here, when a strong wind blows with the blade 6 at an angle β, the blade 6 is pushed by the wind pressure and tends to fall down to the leeward direction at an angle β ′ or an angle β ″. The piston rod 29 and the piston 28 are pushed through the arm 22 and the oil in the cylinder 27 is pushed back to the hydraulic oil groove 40a through the pipe 49 and the hose 42.

  At this time, since the check valve 48 is provided in the pipe 49, the cylinder 27 compressed by the piston 28 and the inside of the pipe 49 are abnormally pressurized. In this pressurized state, the blade 6 can be prevented from tilting to the allowable strength limit range set value of the blade 6. When the allowable strength limit range set value of the blade 6 is reached, the safety valve 51 is opened and the blade 6 is tilted to prevent the blade 6 and other parts of the apparatus from being destroyed.

  Here, even if the wind is stopped and the tilted blade 6 tries to stand up suddenly, the blade 6 cannot move suddenly because the oil flow rate is restricted by the action of the restriction orifice 47 provided in the pipe 49. The impact is alleviated and the blade 6 can be prevented from being broken. Further, in order to prevent the accumulation of oil impurities and the generation of bubbles in the cylinder 27, the valve 54a provided in the pore 27a and the valve 54b provided in the pore 27b are sometimes opened to allow the oil in the cylinder 27 to flow. By exchanging, efficient operation is possible. Further, it is preferable to open and close the valves 54a and 54b by wireless operation.

  The rotor rotating shaft 7 provided substantially horizontally is supported by the support device 10. The support device 10 includes a support column 57 and a jack device 58 provided on the base 5 of the nacelle 4. A bearing 61 pivotally supported by a pin 59 on the side of the support 57 is provided on the upper part of the support 57. The rotor rotating shaft 7 near the hub 8 is supported by the bearing 61. Here, when the variable function of the rotor rotating shaft 7 is not required due to the operation method or results, the jack device 58, the pin 59, etc. may be omitted and fixed support may be used.

  FIG. 3 is a ZZ arrow view in FIG. As shown in FIG. 3, the wind turbine 9 of the wind energy utilization apparatus A is illustrated as having three blades 6. Assuming that the rotation direction when the wind turbine 9 receives wind is the α direction shown in the figure, the entire circumference 360 degrees is divided into three equal parts, and the blades 6 are distributed by 120 degrees. An arm 19a of the blade 6 is provided on the bisector.

  An arm 19 a is inserted between a pair of ribs 20 extending from the main body 17 of the substantially circular hub 8. The arm 19 a is pivotally attached to the rib 20 by a pin 18. The main body 17 and the rib 20 of the hub 8 are firmly and integrally formed by casting, welding, forging, melt molding, FRP, plastic or the like, and have a light and strong structure.

  FIG. 4 is an enlarged view showing a configuration in a state in which the hydraulic power transmission mechanism 12 according to the first embodiment of the present invention of FIG. As shown in FIG. 4, the hydraulic transmission mechanism 12 is arranged in a state where the vertical axis center line thereof coincides with the center line 2 </ b> C of the tower 2.

  The hydraulic transmission mechanism 12 has a multiple tube structure in which a plurality of tubes are inserted concentrically. In the example shown in the figure, the tube is composed of three tubes, an innermost inner tube 81, a middle inner tube 82 just outside the inner tube 81, and an outer tube 104 outside the middle inner tube 82. . The hydraulic transmission mechanism 12 will be described in detail after the configuration of the peripheral portion thereof is described.

  A rotor rotating shaft 7 to which the rotation of the windmill 9 is transmitted extends from the right side of the sheet of FIG. 4 with a slightly upward inclination angle. A shaft coupling 71 a is provided at the end of the rotor rotation shaft 7. A shaft coupling 71 b is provided at the tip of the input rotary shaft 75 of the hydraulic pump 11. The shaft coupling 71a and the shaft coupling 71b are connected to each other, whereby the rotor rotating shaft 7 and the input rotating shaft 75 of the hydraulic pump 11 are connected.

  A saddle 74 that supports the hydraulic pump 11 is firmly fixed to the base 5 of the nacelle 4. The hydraulic pump 11 is mounted on a variable pedestal 72, and the variable pedestal 72 is supported on the saddle 74 by a support pin 73a. The support pin 73a is inserted through a bearing 73b provided on the saddle 74, and is supported by the saddle 74 via the bearing 73b. Here, when the variable function of the variable pedestal 72 is not required depending on the driving situation or the results, the variable pedestal 72 may be changed to one without the variable function.

  The rotation of the rotor rotating shaft 7 is transmitted to the input rotating shaft 75 of the hydraulic pump 11 via the shaft couplings 71a and 71b, and the hydraulic pump 11 is operated by rotating the input rotating shaft 75. The input rotary shaft 75 and the shaft coupling 71 b are provided with a key 76 or a spline groove, and the rotation of the rotor rotary shaft 7 is accurately transmitted to the input rotary shaft 75 of the hydraulic pump 11. When the input rotary shaft 75 of the hydraulic pump 11 rotates, the oil is sucked from one nozzle 77 of the hydraulic pump 11 and the hydraulic pressure is discharged from the other nozzle 78.

  The hydraulic transmission mechanism 12 is disposed at a position where the entire length is substantially equally divided from the rotary base 3 a disposed at the top of the tower 2. On the center line of the vertical axis of the hydraulic transmission mechanism 12, an inner pipe 81 which is the innermost side of the multiple pipe structure is provided substantially vertically. The center line of the inner pipe 81 substantially coincides with the center line 2 c of the tower 2. On the outside of the inner tube 81, a middle inner tube 82 is provided concentrically with the inner tube 81.

  An enlarged boss portion 84 is provided at the upper end of the inner tube 81, and a loose flange 85 is passed through so that the enlarged boss portion 84 is caught. An oil seal 86 is interposed between the outer peripheral surface of the enlarged boss portion 84 and the inner peripheral surface of the loose flange 85. The outer peripheral surface of the enlarged boss portion 84 and the inner peripheral surface of the oil seal 86 can be relatively slidably rotated. However, since the enlarged boss portion 84 is caught inside the loose flange 85, the inner pipe 81 is axially moved. It cannot be pulled out downward.

  A companion flange 87 is disposed on the loose flange 85, and a nozzle-like hole is provided at the center of the companion flange 87, and a flange 89 is provided via a tubular elbow 88. The loose flange 85 and the companion flange 87 are firmly tightened with bolts or the like with a packing or the like interposed therebetween. Thereby, the loose flange 85 and the companion flange 87 are integrated. On the other hand, the enlarged boss portion 84 of the inner pipe 81 has an oil seal 86 interposed between the outer peripheral surface thereof and the inner peripheral surface of the loose flange 85, and can slide and rotate with respect to the loose flange 85, thereby leaking oil. Never do. A ring 90 is provided on the outer side of the enlarged boss portion 84 to prevent the oil seal 86 from being split.

  A ring 91 for integrating the inner inner tube 82 and the inner tube 81 is provided at the lowermost lower end of the inner inner tube 82, and the inner inner tube 82 and the inner tube 81 are integrated by welding or the like. Further, a nozzle neck 93a and a flange 93b are provided immediately above the ring 91 provided at the lowermost end of the inner inner tube 82. The nozzle neck 93a allows oil to flow out and in the middle inner pipe 82.

  On the other hand, an enlarged boss portion 95 is provided at the uppermost end of the inner inner tube 82, and a loose flange 96 is provided so that the enlarged boss portion 95 is hooked inside. An oil seal 97 is interposed between the outer peripheral surface of the enlarged boss portion 95 and the inner peripheral surface of the neck portion 96 a of the loose flange 96, and the outer peripheral surface of the enlarged boss portion 95 and the inner peripheral surface of the oil seal 97 Can slide and rotate, and no oil leaks. Further, the inner / inner tube 82 cannot be pulled downward. A nozzle neck 98 a is provided on the side wall of the loose flange 96. The nozzle neck 98a is provided so as to be positioned at an intermediate portion between the flange portion 96b and the oil seal 97 provided in the neck portion 96a. A flange 98b is provided at the tip of the nozzle neck 98a.

  Further, the flange portion 96b of the loose flange 96 and the companion flange 99 opposed to the flange portion 96b are firmly fixed with bolts or the like via packing or the like. A hole 100 is formed in the center of the companion flange 99, and an inner pipe 81 is passed through the hole 100. An oil seal 101 is provided between the inner wall of the hole 100 of the companion flange 99 and the insertion portion of the inner tube 81. The outer periphery of the inner pipe 81 and the inner periphery of the oil seal 101 can be slid and rotated relatively, and no oil leaks from between them.

  In the loose flange 96, a spacer 102 is inserted in the gap between the upper end of the enlarged boss portion 95 and the companion flange 99. A hole 103 is provided on the circumference of the spacer 102. The hole 103 allows oil in the spacer 102 to freely enter and exit between the inside and the outside of the spacer 102.

  The middle inner tube 82 is inserted into the outer tube 104 on the outside. A ring 92 in which the outer tube 104 and the inner / inner tube 82 are integrated is provided at the lowermost end of the outer tube 104. The outer tube 104 and the inner / inner tube 82 are integrated with the ring 92 by welding or the like. Further, a nozzle neck 94 a that allows oil in and out of the outer tube 104 to be put in and out of the outer tube 104 is provided immediately above the ring 92 provided at the lower end of the outer tube 104. A flange 94b is provided at the tip of the nozzle neck 94a.

  A saddle 114 is provided slightly above the nozzle neck 94 a of the outer tube 104. The saddle 114 is supported by a support 115 extending from the tower 2 side, slightly below the upper end rotary base 3a of the tower 2. Thereby, the lower part of the hydraulic transmission mechanism 12 moves integrally with the tower 2.

  An enlarged boss portion 105 is provided at the upper end of the outer tube 104. A loose flange 106 is provided so that the enlarged boss portion 105 is hooked inside the loose flange 106. An oil seal 107 is interposed between the outer peripheral surface of the enlarged boss portion 105 and the inner peripheral surface of the neck portion 106 a of the loose flange 106. The outer peripheral surface of the enlarged boss portion 105 and the inner peripheral surface of the oil seal 107 can be relatively slid and rotated, and oil does not leak. Further, since the enlarged boss portion 105 is caught inside the loose flange 106, the outer tube 104 cannot be pulled out downward.

  The loose flange 106 is provided with a hollow nozzle neck 108a at an intermediate portion between the flange portion 106b and the oil seal 107 provided in the neck portion 106a. A flange 108b is provided on the tip side of the nozzle neck 108a.

  Further, the flange portion 106b of the loose flange 106 and the companion flange 109 facing the flange portion 106b are provided with packing or the like between them, and are firmly fixed with bolts or the like. A hole 110 passes through the center of the companion flange 109, and the inner / inner tube 82 is inserted through the hole 110. An oil seal 111 is provided between the inner peripheral wall of the hole 110 of the companion flange 109 and the outer peripheral wall of the insertion portion of the inner inner tube 82. The outer peripheral portion of the inner / inner tube 82 and the inner peripheral portion of the oil seal 111 can be relatively slid and rotated without oil leakage.

  A spacer 112 is inserted in the gap between the upper end of the enlarged boss portion 105 and the companion flange 109. A hole 113 is formed on the circumference of the spacer 112. The hole 113 allows oil inside the spacer 112 to freely enter and exit between the inside and the outside of the spacer 112.

A support 116 extends inside the body of the nacelle 4. A loose flange 85, a companion flange 87, a flange portion 96b, a companion flange 99, a loose flange portion 106b, a companion flange 109, an elbow 88, a flange 89, and the like are firmly attached to the support 116. Thereby, they can rotate freely with the nacelle 4 and the center line 2c as the axis of rotation.
Note that the conductive annular rail 117 and the conductive brush 118 are connected to the generator 16 by an electric cable 119. Thereby, the electric power for various apparatuses, such as instrumentation, illumination, a sign, and a small-scale power drive device, is supplied in the nacelle 4.

FIG. 5 is a view taken in the direction of arrows YY in FIG.
As shown in FIG. 5, the hydraulic pump 11 is mounted on the variable pedestal 72. Support pins 73a are provided at both ends of the variable base 72, and the support pins 73a are passed through bearings 73b. The bearing 73 b is firmly fixed to the base 5 of the nacelle 4 with a saddle 74.

  The horizontal rotation axis 75 a of the input rotation shaft 75 of the hydraulic pump 11 and the rotation axis 73 c of the support pin 73 a of the variable base 72 are orthogonal to each other. As a result, one end of the input rotary shaft 75 of the hydraulic pump 11 fluctuates up and down on the other end portion (rotor rotary shaft 7 in FIG. 1) of the input rotary shaft 75 with the rotary shaft core 73c of the variable pedestal 72 as the rotary shaft fulcrum. By doing so, the angle of the input rotation shaft 75 can be changed. The hydraulic pump 11 is provided with an oil suction nozzle 77 and a discharge nozzle 78.

FIG. 6 is a longitudinal sectional view showing a wind energy utilization device B of a different mode equipped with a hydraulic transmission mechanism.
In the wind energy utilization apparatus B shown in FIG. 6 and the wind energy utilization apparatus A, the wind energy utilization apparatus A is provided with the hydraulic compression mechanism Po as means for changing the angle of the blade 6. The utilization device B is different in that a spring compression mechanism Ps is provided instead of the hydraulic compression mechanism Po. In addition, the same code | symbol is attached | subjected to the site | part same as the wind energy utilization apparatus A, and the overlapping description is abbreviate | omitted.

  Since the wind energy utilization apparatus A shown in FIG. 1 is an apparatus aimed at a relatively large scale at the commercialization stage, the configuration of the apparatus is complicated using many hydraulic circuits and the like. On the other hand, in the wind energy utilization apparatus B shown in FIG. 6, the structure of the apparatus is simplified and it is configured to be suitable for a relatively small scale in commercialization.

  In the wind energy utilization apparatus A, the rotary shaft 15a and the transmission 15b, such as a clutch, which transmit power from the hydraulic motor 14 provided in the tower base 2a are for operating the generator. In the utilization apparatus B, the pump 151 is moved in addition to the generator 16. As a result, the sea water taken from the sea water from the suction strainer 152 is sent to the water supply destination through the water supply pipe 154 by the pump 151 through the intake pipe 153.

FIG. 7 is a longitudinal sectional view showing a wind energy utilization apparatus C of a further different aspect equipped with a hydraulic transmission mechanism according to an embodiment of the present invention.
In the wind energy utilization apparatus C shown in FIG. 7 and the wind energy utilization apparatus A shown in FIG. 1, the wind energy utilization apparatus A is such that the blade 6 tilts to the leeward side when it receives a strong wind pressure. On the other hand, the wind energy utilization apparatus C is different in that the blade 6 does not tilt even when subjected to strong wind pressure, and the blade 6 rotates by a variable pitch mechanism.

  This wind energy utilization apparatus C is a so-called general wind power generator. That is, the hydraulic transmission mechanism 12 according to the present embodiment can be installed in a conventional general wind power generator as a power transmission device using wind power.

FIG. 8 is a longitudinal sectional view showing a wind energy utilization apparatus D of a further different aspect equipped with a hydraulic transmission mechanism according to an embodiment of the present invention.
As shown in this example, the hydraulic pump 11 is different from the other wind energy utilization apparatuses A, B, and C in that the hydraulic pump 11 is on the opposite side of the blade 6 in the wind turbine 9 with the center line 2c of the tower 2 as a boundary. Is a point. The wind energy utilization device D is a device that balances the weight of the hydraulic pump 11 and the blade 6 and reduces shaking, inclination, and the like of the device.

  FIG. 9 is an enlarged explanatory view showing a configuration in which a spring compression mechanism Ps different from the hydraulic compression mechanism Po in FIG. 2 is installed in the rotor rotating shaft 7 of the wind energy utilization apparatus B shown in FIG.

  The difference between the hydraulic compression mechanism Po in FIG. 2 and the spring compression mechanism Ps shown in FIG. 9 is that the former is provided with a casing 26 inside the rotor rotation shaft 7, in which a cylinder 27, piston 28, piston rod 29, nut 30. In the latter, the oil in the cylinder 27 is compressed by the piston 28, while the latter includes the casing 26 inside the rotor rotating shaft 7, the spring guide 121 and the spring 122 provided therein, One end of the spring 122 is stopped at a portion corresponding to the bottom plate 123 of the casing 26, and the other end is pressed by a spring presser 124. One end of the outer rod 125 is attached to the spring retainer 124, and the other end is fastened to the slide arm 23 described with reference to FIG.

  Here, the spring 122 is compressed when the slide arm 23 moves to the support device 10 side due to the tilt of the blade 6, which is the same as that described in FIG. 2. The blade 6 can be tilted by the compression of the spring compression mechanism Ps. Next, the outer rod 125 is formed as a double-shaft outer shaft using a tube or the like, and a rod-shaped inner rod 127 is passed therethrough. The inner rod 127 passes through the spring retainer 124, the spring 122 and the bottom plate 123, passes through the inside of the spring 128, and is fixed to the stopper 129. As already described, when the blade 6 is tilted by the wind pressure, the slide arm 23 is pushed toward the support device 10 and the spring 122 is compressed.

  Further, since the inner rod 127 provided in the outer rod 125 is also pushed in the direction of the support device 10, the spring 128 extends. Here, when the wind subsides, the blade 6 stands by the restoring action of the spring 122. At this time, an impulsive reaction force is generated on the blade 6 by the reaction force of the spring 122. Since the spring 128 is set to be compressed at this time, the impact force caused by the reaction force of the spring 122 can be reduced.

  FIG. 10 is a longitudinal sectional view showing a wind energy utilization apparatus E of a further different aspect equipped with the hydraulic transmission mechanism 12 according to one embodiment of the present invention. This wind energy utilization apparatus E is mainly different from the wind energy utilization apparatus A in the following points.

  That is, hydraulic oil is provided so that the generator 16 is avoided by directly connecting the pipe 134 and the pipe 136 to the point that the movable base 212 including the hydraulic pump 211 and the jack 212b is provided on the rear end side of the rotor rotating shaft 7. And an on-off valve for stopping the flow of hydraulic oil passing through the generator 16 to at least one of the upstream pipe 134 and the downstream pipe 135 of the generator 16. It is the point which provided 321,322.

  In FIG. 10, the output end, that is, the rear end portion of the rotor rotating shaft 7 is connected to a hydraulic pump 211 mounted on the movable base 212. The hydraulic pump 211 converts the rotational power transmitted from the rotor rotating shaft 7 into hydraulic oil. One end of a universal tube 272a is connected to the discharge port of the hydraulic pump 211, and the other end of the universal tube 272a is connected to an accumulator 273. One end of the pipe 272 b is connected to the accumulator 273, and the other end is connected to the flange 89 of the hydraulic transmission mechanism 12.

  11 is a view taken along the line WW in FIG. 10, and FIG. 12 is a view taken along the line TT in FIG. 11. The hydraulic pump 211 is mounted on the movable base 212, and an input shaft 211a is disposed at substantially the center of the apparatus. In the hydraulic pump 211, the rotation of the rotor rotating shaft 7 is transmitted to the input shaft 211a of the hydraulic pump 211, and the compressed hydraulic oil is transmitted from the nozzle 211b through the universal pipe 272a, the accumulator 273, and the pipe 272b. Sent to mechanism 12. At the same time, the nozzle 211c has a fluid suction action such as hydraulic pressure, and the fluid is sucked into the nozzle 211c and the hydraulic pump 211 from the hydraulic transmission mechanism 12 through the pipe 276b, the tank 277, and the hose 276a.

  On the other hand, the movable pedestal 212 is provided with a hydraulic pump 211 on a pedestal frame 212a. A guide frame 212d is disposed on the gantry 212g. Slide pins 212c are fixed to both sides of the base frame 212a. The slide pin 212c is inserted into the elongated hole 212e of the guide frame 212d. The slide pin 212c is loosely held by a liner or a washer 212f so that it can move in the long hole 212e, and is set with a nut or the like so as not to break. Thereby, the base frame 212a can be operated while being guided by the guide frame 212d.

  A jack 212b is provided below the pedestal frame 212a. By operating the jack 212b, the base frame 212a and the hydraulic pump 211 can be moved up and down. As described with reference to FIG. 2, the bearing 61 pivotally supported on the support column 57 side by the pin 59 is provided on the upper portion of the support column 57 of the support device 10. The rotor rotating shaft 7 near the hub 8 is supported by the bearing 61. In the wind energy utilization apparatus E in FIG. 10, the jack apparatus 58 is not provided in the support apparatus 10. Therefore, by operating the jack 212b, the rotor rotary shaft 7 can be angularly changed in the vertical direction with the pins 59 or the pins 59a provided on both sides of the bearing 61 as fulcrums. A change in the vertical angle of the rotor rotation shaft 7 is transmitted to the blade 6, and the blade 6 changes the vertical angle.

  The jack 212b is preferably automatically adjusted by catching the wind direction, wind speed, device tilt, etc. with a sensor. However, since it is a device used on the ocean, it is fixed to some extent depending on the operating conditions and results. Switching to operation is also conceivable.

In FIG. 10, above the cab 13, the hydraulic fluid is transmitted to the pipe 134, which is a hydraulic oil supply path for supplying hydraulic oil from the hydraulic transmission mechanism 12 to the generator 16, and the hydraulic oil after the generator 16 is operated. A bypass pipe 300 is provided that is connected so as to communicate with a pipe 136 that is a hydraulic oil recovery passage returning to the mechanism 12. The bypass pipe 300 has three branch pipes 301, 302, and 303 between both ends, and the both ends of the bypass pipe 300 branch into three flow paths. The branch pipe 301 is provided with a bypass valve 311 for opening and closing the flow path. Similarly, the branch pipe 302 is provided with a bypass valve 312, and the branch pipe 303 is provided with a bypass valve 313. The flow rate of hydraulic oil supplied to the generator 16 can be adjusted by opening and closing the bypass valves 311, 312, and 313 of the bypass pipe 300.
The branch pipes 301, 302, and 303 of the bypass pipe 300 may all have the same inner diameter, or may have different inner diameters. Further, the number of branch pipes of the bypass pipe 300 is not limited to three, and there may be no branch pipe.

  Each generator 16 disposed in the cab 13 is provided with an opening / closing valve 321 for opening and closing the flow path in a pipe 134 that is a flow path on the upstream side of the hydraulic oil. An opening / closing valve 322 for opening and closing the flow path is provided in a certain pipe 135. By adjusting the opening / closing valves 321 and 322, the generator 16 to be driven can be arbitrarily selected. Further, the flow can be rectified in a certain direction by providing the check valve 323 in the middle of the pipe line from the pipe 134 to the pipe 135. Further, by combining with opening / closing adjustment of the bypass valves 311, 312, and 313, more precise wind energy can be used.

  FIG. 13 is a schematic view illustrating an implementation state on the ocean of a wind energy utilization apparatus equipped with the hydraulic transmission mechanism 12 according to the present invention. This apparatus floats the floating body 1 on the sea surface SW, moors the floating body apparatus to the sea floor SG with an anchor, a chain, etc., and shows the whole apparatus using wind energy.

  FIG. 14 is a schematic view illustrating another implementation state on the ocean of a wind energy utilization apparatus equipped with the hydraulic transmission mechanism 12 according to the present invention. This apparatus shows the entire wind energy utilization apparatus in which the floating body 1 is provided on the sea surface SW, the base block BB is picked up during transportation and towing, and the base block BB is landed on the sea floor SG during operation.

  A wind energy utilization apparatus having a hydraulic transmission mechanism according to the present invention is a low-speed generator that is relatively easy and safe in terms of efficiency, with the low-speed rotation and high-torque power generated by a windmill by hydraulic pressure configured in the hydraulic transmission mechanism. Alternatively, it can be transmitted to a pump, etc., as a drive source, and by lowering the center of gravity of the wind energy utilization device, the overturning action of the device is suppressed as much as possible, safety and stability are improved, and the generator is divided so that it can be used during typhoons. Withstands wind and large waves, effectively uses the range of curve-out due to strong winds, reduces the range of cut-out operation, improves maintainability, increases operating rate, high-efficiency and low-cost drive source costs and low-cost power generation costs Can be obtained.

  The embodiments of the present invention have been described above with reference to the drawings. However, the specific configuration is not limited to the above-described embodiments, and the present invention can be changed or added without departing from the scope of the present invention. Included in the invention. For example, although the present embodiment has been described as using hydraulic pressure due to hydraulic oil, fluid pressure due to fluid, such as water pressure or hydraulic pressure due to other liquids, may be used.

  The hydraulic transmission mechanism according to the present invention is not limited to a device that uses wind energy, and can be widely applied to devices that use a hydraulic transmission device. Moreover, it can be widely used in fields using ocean energy, such as ocean currents, tidal currents, tides, and river water power generators.

A ... Wind energy utilization device B ... Wind energy utilization device C ... Wind energy utilization device D ... Wind energy utilization device E ... Wind energy utilization device Po ... Hydraulic compression mechanism Ps ... Spring compression mechanism F ... Wind SW ... Sea surface (water surface)
SG ... Submarine BW ... Resistance plate weight BB ... Base block SK ... Skirt RD ... Rotor diameter RD '... Tilt rotor diameter RD "... Tilt rotor diameter (at maximum tilt)
α: Windmill rotation direction β, β ′, β ″: Blade tilt direction tilt angle 1: Floating body 2 ... Tower 2a: Tower base (base)
2c ... center lines 3a, 3b ... rotating base 4 ... nacelle 5 ... base 6, 6 ', 6 "... blade 6a ... blade insertion part 7 ... rotor rotating shaft 8 ... hub 9 ... windmill 10 ... support device 11 ... hydraulic pump DESCRIPTION OF SYMBOLS 12 ... Hydraulic transmission mechanism 13 ... Driver's cab 14, 14 '... Hydraulic motor 15a ... Rotary shaft 15b ... Transmission 16 ... Generator 16' ... Pump 17 ... Hub main body 17a ... Hub boss part 18 ... Pin 19 ... Boss 19a , 19b ... arm 19c ... connection end 20 ... ribs 21a, 21b ... pin 22 ... arm 23 ... slide arm 24 ... lug 26 ... casing 26a ... casing flange 27 ... cylinder 27a, 27b ... pore 28 ... piston 29 ... piston Rod 30 ... Nut 31 ... Outer ring 32 ... Set bolt 33 ... Bearing 34 ... Set bolt 35 ... Brake ring 36 ... Hydraulic brake device 37 ... Hydraulic transmission Ring 38 ... Body 38a ... Boss 39 ... Set bolts 40a, 40b ... Working oil grooves 41a, 41b ... Pore 42 ... Hose 43 ... External casing 44 ... Support 45a, 45b, 45c ... Oil seal 46 ... Hole 47 ... Limit orifice 48 ... Check valve 49 ... Piping 50 ... Fine hole 51 ... Safety valve 52 ... Accumulator 53a, 53b ... Piping 54a, 54b ... Valve 55, 56 ... Piping 57 ... Strut 58 ... Jacking device 59, 59a ... Pin 60 ... Stopper 61 ... Bearing 62 ... Thrust bearing 63 ... Outer ring 64 ... Pin 65 ... Saddle 66 ... Elongated hole 67 ... Pipe 71a, 71b ... Joint coupling 72 ... Variable pedestal 73a ... Support pin 73b ... Bearing 73c ... Rotating shaft core 74 ... Saddle 75 ... Input rotating shaft 75a ... Rotating shaft core 76 ... Keys 77, 78 ... Nozzle 81 ... Inner tube 81a ... Sending unit 82 ... Inner tube 83 ... Flange 84 Enlarged boss 85 ... Loose flange 86 ... Oil seal 87 ... Companion flange 88 ... Elbow 89 ... Flange 90 ... Ring 91 ... Ring 92 ... Ring 93a ... Nozzle neck 93b ... Flange 94a ... Nozzle neck 94b ... Flange 95 ... Enlarged boss 96 ... Loose flange 96a ... Neck part 96b ... Flange part 97 ... Oil seal 98a ... Nozzle neck 98b ... Flange 99 ... Composite flange 100 ... Hole 101 ... Oil seal 102 ... Spacer 103 ... Hole 104 ... Outer tube 105 ... Enlarged boss part 106 ... Loose flange 106a ... neck portion 106b ... flange portion 107 ... oil seal 108a ... nozzle neck 108b ... flange 109 ... companion flange 110 ... hole 111 ... oil seal 112 ... spacer 113 ... hole 114 ... saddle 115, 116 ... support 11 ... annular rail 118 for electric conduction ... conductive brush 119 ... electric cable 121 ... spring guide 122 ... spring 123 ... bottom plate 124 ... spring retainer 125 ... outer rod 126 ... nut 127 ... inner rod 128 ... spring 129 ... stopper 131 ... upper tank 132 ... Lower tank 133 ... Universal pipe 134, 134a, 135, 136 ... Pipe 137, 138, 139 ... Hose 140 ... Crane 141 ... Pipe 142 ... Valve 143 ... Pipe 144 ... Hose 145 ... Valve 146 ... Pipe 147 ... Check valve 148 ... Hose 151 ... Pump 152 ... Suction strainer 153 ... Intake pipe 154 ... Water supply pipe 211 ... Hydraulic pump 211a ... Input shaft 211b, 211c ... Nozzle 212 ... Movable base 212a ... Base frame 212b ... Jack 212c ... Slide pin 21 2d ... guide frame 212e ... long hole 212g ... mount 212f ... washer 272a ... universal tube 272b ... pipe 273 ... accumulator 276a ... hose 276b ... pipe 277 ... tank 300 ... bypass pipes 301, 302, 303 ... branch pipes 311, 312, 313 ... Bypass valves 321, 322 ... Open / close valve 323 ... Check valve

Claims (8)

A hydraulic transmission mechanism in a device in which a power source side and a drive device side driven by hydraulic power from the power source are relatively rotatable,
An introduction part for introducing hydraulic oil with hydraulic pressure from the power source side, and a plurality of concentrically inserted pipes communicating with the introduction part and forming a plurality of flow paths for the hydraulic oil introduced from the introduction part A body, and a delivery unit provided for each tubular body, through which hydraulic oil is delivered to the drive device,
The flow path includes a space formed between each outer peripheral surface of the plurality of tubular bodies and an inner peripheral surface of one outer tubular body, and a tube disposed on the innermost side of the plurality of tubular bodies. Inside the body,
Each of the plurality of pipe bodies is rotatable as a rotation center line that coincides with a rotation center line of a relative rotation between the power source side and the drive device side. In a wind energy utilization apparatus provided in a nacelle supported by a tower, a windmill having a plurality of blades that rotate when receiving a wind of a predetermined wind or more,
A base in which the tower is erected and a driving device is disposed, a hydraulic pump disposed in the nacelle that converts rotation of the windmill into hydraulic power, and hydraulic oil from the hydraulic pump is driven. A hydraulic transmission mechanism according to claim 1 for transmitting to a device,
The nacelle is supported by the tower so as to be relatively rotatable,
The wind power energy utilization apparatus is characterized in that the hydraulic transmission mechanism is arranged such that the common axis coincides with a rotation center line of relative rotation between the nacelle and the tower.   3. The wind energy utilization apparatus according to claim 2, wherein the windmill is provided such that a rotor rotation axis of the windmill can be adjusted in an up-down direction. The windmill includes an elevating device for adjusting the angle of the rotor rotation shaft in the vertical direction,
4. The wind power according to claim 3, wherein the lifting device is disposed so as to move up and down a rotor rotating shaft rear end side opposite to a rotor rotating shaft front end side having the plurality of blades. Energy utilization device.   There is at least one between a hydraulic oil supply passage for supplying hydraulic oil from the hydraulic transmission mechanism to the drive device and a hydraulic oil recovery passage for returning the hydraulic oil after operating the drive device to the hydraulic transmission mechanism. The wind energy utilization apparatus according to claim 2, 3 or 4, wherein a bypass flow path for the book and a bypass valve for opening and closing the bypass flow path are provided in the bypass flow path.   An opening / closing valve for opening and closing the flow path is provided in at least one of the upstream flow path and the downstream flow path of the drive device, and when there are a plurality of drive devices, the open / close valve is provided for each drive device. The wind energy utilization apparatus according to any one of claims 2 to 5, wherein the wind energy utilization apparatus is provided.   The said hydraulic pump is arrange | positioned on the opposite side to the said windmill side on the boundary of the rotation center line of the relative rotation of the said nacelle and the said tower, It is any one of Claim 2 to 6 characterized by the above-mentioned. Wind energy utilization equipment. The windmill includes a compression mechanism provided on the rotor rotation shaft,
The wind energy utilization apparatus according to any one of claims 3 to 7, wherein an inclination angle of each blade of the windmill can be changed by the compression mechanism.

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