TW201619497A - Hydraulic power generation device and method for assembling hydraulic power generation device - Google Patents

Abstract

This hydraulic power generation device (100) has: a blade (10) that is rotated by flowing water; a shaft body (20) that rotates with the rotation of the blade (10); a bearing support section (30) that is provided with bearings (31, 32) for rotatably supporting the shaft body (20); and a power generator (50) that generates electric power by means of the rotary driving force of the shaft body (20). At least the blade (10), shaft body (20), bearing support section (30), and power generator (50) are constructed as modularized units. Due to the adoption of this configuration, a hydraulic power generation device that can be easily assembled and installed without the use of large heavy machinery and a method for assembling the hydraulic power generation device can be obtained.

Description

Hydroelectric power generation device and assembly method of hydraulic power generation device

The present invention relates to a hydroelectric generating apparatus that generates electric power by a water flow and an assembling method thereof.

Since the introduction of the knowledge, there has been known a hydroelectric power generating device that generates a power by transmitting a rotating operation to a generator by a water flow to rotate a wheel having a waterwheel. The hydroelectric power generation device of this kind has various forms such as a Pelton turbine or a Francis turbine, a Propeller turbine, and the like, and is adopted according to the terrain of a place where a waterwheel is installed. Suitable for waterwheels. For example, in a river or a sea with a low drop, a spiral waterwheel is provided. Patent Document 1 discloses a hydroelectric power generating apparatus which is installed in a river and has two or more horizontal straight fins arranged on a circumference around a horizontal axis.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open Publication No. 2008-190396

However, a screw-type waterwheel installed in a river or an ocean is heavy in weight, and in order to assemble and install a waterwheel, a large-scale heavy machine must be used. Therefore, the setting field of the waterwheel The system is limited to a place where it can be moved into a large heavy machine, and the assembly and installation costs become high.

Further, even in a place where traffic is inconvenient, such as in a mountainous area, it is still desired to realize a waterwheel that can be easily assembled and installed.

Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a hydroelectric power generating apparatus that can be easily assembled and installed without using a large heavy machine, and an assembly method thereof.

The hydroelectric power generation device of the present invention has: a vane rotated by a water flow; a shaft body that rotates with the rotation of the vane; and a bearing support portion that is provided with a bearing that rotatably supports the shaft body; And a generator that generates electric power by a rotational driving force of the shaft body, and is characterized in that at least each of the vane, the shaft body, the bearing support portion, and the generator is modularized Unit.

In addition, the "modularized unit" in the present specification refers to a function of dividing and modularizing the functions of the hydroelectric power generation apparatus 100. In other words, at least the vane, the shaft body, the bearing support portion, and the generator are "modulated units", and the unit after the division is assembled, the The product device of the hydroelectric power generation device 100 is configured to be ideally completed by fine adjustment work or the like.

Furthermore, the assembling method of the hydroelectric power generating apparatus of the present invention has a method of assembling a hydroelectric power generating device: a vane which is rotated by a water flow; and a shaft body which rotates in accordance with the rotation of the vane; a support portion including a bearing that rotatably supports the shaft body, and a generator that generates electric power by a rotational driving force of the shaft body; wherein at least the vane, the shaft body, the bearing support portion, and Each of the above generators is configured as a modular unit, and is characterized in that the execution includes a step of pressing the shaft body into a hollow shaft having the bearing support portion to form a state in which the bearing support portion is fitted to an end portion of the shaft body; and fitting the friction fastening means to the shaft a step of frictionally fastening the hollow shaft of the bearing support portion and the shaft body to the shaft body and the bearing support portion; and providing the generator to the assembled bearing support portion and the shaft body The upper portion and the step of disposing the vane on the bearing support portion and the lower portion of the shaft body.

According to the present invention, it is possible to provide a hydroelectric power generating apparatus which can be easily assembled and installed without using a large heavy machine, and an assembling method thereof.

10, 110, 210, 310, 410, 510‧‧‧

11, 111, 211, 311, 411, 511 ‧ ‧ board

12, 112, 212, 312, 412, 512‧‧‧ plates

13, 113, 213, 313, 413, 513 ‧ ‧ leaves

15, 115, 215, 315, 415, 515‧ ‧ fixed parts

17,117, 217, 317, 417, 517‧‧

20‧‧‧Axis

21‧‧‧ (shaft) keyway

22‧‧‧(shaft) screw hole

30‧‧‧ Bearing support

31‧‧‧ Bearings (radial bearings)

32‧‧‧ Bearings (angular contact ball bearings)

32‧‧‧ hollow shaft

34‧‧‧ gap

35‧‧‧ (hollow shaft) screw hole

37‧‧‧Shell

39‧‧‧ Friction fastening means

39a‧‧‧Protruding

40‧‧‧ (friction fastening means) screw hole

41‧‧‧ fixture

42‧‧‧(tool) screw hole

43‧‧‧First bolt

45‧‧‧second bolt

50‧‧‧Generator

51‧‧‧ Coupler

53‧‧‧ drive shaft

54‧‧‧ (drive shaft) keyway

55‧‧‧Speed increasing device

57‧‧‧Connectors

60‧‧‧Support board

100‧‧‧Hydroelectric installation

212a, 212b, 212c, 212d‧‧‧ plates

219, 319‧‧‧ rotating shaft

A‧‧‧ center axis

C‧‧‧Waterway

R‧‧‧Curve shape department

S‧‧‧Line shape department

X, Y‧‧‧ part

、, β‧‧‧ symbol

Fig. 1 is a view showing an example of the overall configuration of a hydroelectric power generating apparatus according to the present embodiment.

Fig. 2 is a view showing a vane of the hydroelectric power generating apparatus of the embodiment.

Fig. 3 is a view showing a shaft body of the hydroelectric power generating apparatus of the embodiment.

Fig. 4 is a view showing a bearing support portion of the hydroelectric power generating apparatus of the embodiment.

Fig. 5 is a view showing a friction fastening means of the hydroelectric power generating apparatus of the embodiment.

Fig. 6 is a view showing a generator of the hydroelectric power generating apparatus of the embodiment.

Fig. 7 is a view showing a coupler of the hydroelectric power generating apparatus of the embodiment.

Fig. 8 is a view showing a joint of the hydroelectric power generating apparatus of the embodiment.

9 is a view for explaining a method of assembling a shaft body and a bearing support portion according to the embodiment; In the figure, the part (a) in the figure shows a diagram of the shaft body and the bearing support portion; and the part (b) in the figure shows a state in which the shaft body is pressed into the bearing support portion.

Fig. 10 is a view for explaining a jig for pulling up a shaft body relative to a bearing support portion according to the embodiment, and Fig. 10(a) is a view showing that the jig is placed on a bearing branch; The diagram of the state of the struts; the sub-figure (b) in the figure shows the state in which the first bolt is inserted into the jig; the sub-figure (c) in the figure shows that the shaft is opposite by the first bolt A diagram of a state in which the bearing support portion is relatively pulled up; a part (d) in the figure shows a state in which the second bolt is inserted into the jig; and a part (e) in the figure is displayed by the second A diagram of a state in which the shaft body is relatively pulled up with respect to the bearing support portion by bolts.

Fig. 11 is a view showing a state in which the shaft body and the bearing support portion are assembled in the embodiment.

Fig. 12 is an enlarged view of a main portion for explaining the fixing of the hollow shaft to the friction fastening means of the embodiment.

Fig. 13 is a view showing a state in which the hollow shaft and the shaft body are frictionally fastened by the friction fastening means in the embodiment, and the part (a) in the figure shows the whole of the hollow shaft and the shaft body; Part (b) is an enlarged view of a part of the hollow shaft and the shaft body.

Figure 14 is a diagram for explaining a method of assembling a modular unit, in which a part (a) shows a diagram of a modular unit, and a part (b) of the figure shows that all units are assembled. A diagram of a hydroelectric installation that is completed later.

Fig. 15 is a view showing a first modification of the vane.

Fig. 16 is a view showing a second modification of the vane.

Fig. 17 is a view showing a third modification of the vane, in which a part (a) shows a whole diagram of a third modification of the vane; and a part (b) of the figure shows a vane forming member. Picture.

Fig. 18 is a view showing a fourth modification of the bucket.

Fig. 19 is a view showing a fifth modification of the bucket.

The following uses the drawings for a suitable embodiment for carrying out the invention. Be explained. Further, the following embodiments are not intended to limit the inventors of the respective claims, and all of the combinations of features described in the embodiments are not necessarily limited to the means for solving the invention.

First, a configuration example of the hydraulic power unit 100 of the present embodiment will be described with reference to Figs. 1 to 8 . Here, Fig. 1 is a view showing an overall configuration example of a hydroelectric power generating apparatus according to the present embodiment, and Fig. 2 is a view showing a vane of the hydroelectric power generating apparatus according to the present embodiment. 3 is a view showing a shaft body of the hydroelectric power generator of the embodiment, and FIG. 4 is a view showing a bearing support portion of the hydroelectric power generator according to the embodiment. Further, Fig. 5 is a view showing a friction fastening means of the hydroelectric power generator of the embodiment, and Fig. 6 is a view showing a generator of the hydroelectric power generator of the embodiment. Next, Fig. 7 is a view showing a coupler of the hydroelectric power generating apparatus of the present embodiment, and Fig. 8 is a view showing a joint of the hydroelectric power generating apparatus of the present embodiment.

As shown in Fig. 1, the hydroelectric power generating apparatus 100 of the present embodiment has a vane 10 that is rotated by a water flow, a shaft body 20 that rotates in accordance with the rotation of the vane 10, and a bearing support portion 30 that is provided. There is a bearing that rotatably supports the shaft body 20; and a generator 50 that generates electric power by the rotational driving force of the shaft body 20; Next, the hydroelectric power generator 100 of the present embodiment is installed in, for example, the water channel C.

As shown in FIG. 1 and FIG. 2, the vane 10 of the present embodiment includes, for example, a pair of plate portions 11 having a disk shape and a plurality of blade portions 13 connected to a pair of plate portions 11, and a pair The plate portion 11 and the plurality of blade portions 13 are configured to have an integrated structure.

The plate portion 11 is composed of two sheets 12 and 12. The blade portion 13 of the present embodiment is formed substantially The shape of the word, and has a curved shape portion R at the corner portion. In order to integrally form the blade portion 13 and the pair of plate portions 11 at both ends of the plurality of blade portions 13, the fixing portion 15 is formed to fit the circumference of the disk shape of the plate portion 11. The fixing portion 15 is sandwiched between the two sheets 12, 12 and joined between the two sheets 12, 12 by bolts, for example. Next, the vane 10 of the present embodiment is integrally formed into a rough The blade portion 13 and the fixing portion 15 having the shape of a word serve as the vane constituent member 17.

As described above, the vane 10 of the present embodiment is sandwiched between the both ends of the vane constituent member 17, that is, the fixed portion 15, by the plate portion 11 including the two sheets 12 and 12, and is fixed by, for example, a bolt or the like. Since the plurality of blade portions 13 and the pair of plate portions 11 are joined together, the plurality of blade portions 13 are integrally formed. Furthermore, the vane 10 of the present embodiment is integrally formed as a rough The shape of the vane constituting member 17 is a cage structure formed by a combination of the members, and the pair of plate portions 11 and the blade portion 13 can maintain the strength of the vane 10. Therefore, according to the vane 10 of the present embodiment, it is not necessary to attach the rotation center shaft of the vane 10 which is necessary in the prior art and the rotation shaft for maintaining the strength of the vane 10 to the vane 10. Therefore, according to the bucket 10 of the present embodiment, the weight of the entire bucket can be reduced while maintaining the strength required for the vane 10.

Further, the vane 10 of the present embodiment is configured as one of the modular units in the hydroelectric power generating apparatus 100. The vane 10 is configured as a modular unit, and the weight of the vane 10 is reduced, and the handling and assembly of the hydroelectric power generating apparatus 100 are facilitated. Therefore, even in a mountainous area, for example, the installation place of the hydroelectric power generation apparatus 100 is inconvenient, and the conventional hydroelectric power generation apparatus is assembled and installed in a difficult place. According to the hydroelectric power generation apparatus 100 of the present embodiment, The assembly and installation of the hydropower device 100 are easily performed.

Next, as shown in FIG. 1, the vanes 10 are arranged in the water by The water flow causes the blade portion 13 to receive the thrust, and the center of the blade 10 (the center of the plate portion 11) is rotated about the central axis A.

The shaft body 20 is a unit that is coupled to the upper end of the vane 10 at its lower end, thereby rotating as the vane 10 rotates. The shaft body 20 is provided such that the central axis A of the vane 10 is coaxial with the central axis of rotation, and is fastened to the vane 10 by, for example, a bolt and a nut. Next, the shaft body 20 is rotatably supported by bearings 31 and 32 provided in the bearing support portion 30 which will be described later. Further, a key groove 21 for coupling to a coupler 51 to be described later and a screw hole 22 for inserting a bolt for assembly and installation, which will be described later, are formed at the end portion of the shaft body 20.

As shown in FIG. 1, the bearing support portion 30 is provided with means for rotatably supporting the bearings 31, 32 of the shaft body 20. The bearing support portion 30 of the present embodiment includes a bearing 31, 32, a hollow shaft 33, and a friction fastening means 39 that frictionally fastens the hollow shaft 33 and the shaft body 20, and is configured as a unit that is modularized. Next, the bearing support portion 30 is disposed on the support plate 60 that supports the bearing support portion 30. As shown in FIG. 1, the support plate 60 is spanned between the two banks of the water channel C to support the hydropower device 100 and the bearing support portion 30.

As shown in Fig. 4, in the bearings 31 and 32 of the present embodiment, radial bearings 31, 31 (radial bearings) and angular contact ball bearings 32, 32 are used. The radial bearings 31, 31 are capable of withstanding radial loads to support the shaft 20. On the other hand, the angular contact ball bearings 32 and 32 are configured to support the radial load and the axial load. In the hydroelectric power generator 100 of the present embodiment, the load of the vane 10 is concentrated. By arranging the angular contact ball bearing 32, it can support radial load and axial load, and can withstand a large load. In short, the hydroelectric power generating apparatus 100 of the present embodiment is ideal for external load. With the component arrangement, the hydropower device 100 can maintain the strength of the hydropower device 100 even if it is lightweight.

Further, by fitting the hollow shaft 33 to the shaft body 20, the central axis A of the vane 10 and the central axis of rotation of the shaft body 20 are coaxial with the central axis of the bearing support portion 30 (hollow shaft 33). . Therefore, according to the hydroelectric power generating apparatus 100 of the present embodiment, the shaft body 20 and the bearing support portion 30 can be easily assembled without fine adjustment.

As shown in Fig. 1, in the hydroelectric power generating apparatus 100 of the present embodiment, the fitting size of the portion X in which the load applied to the vane 10 is concentrated is such that the shaft body 20 and the hollow shaft 33 are tightly fitted (or stopped). The fitting size of the other portion Y is the fitting of the shaft body 20 and the hollow shaft 33 as a gap. Here, the close fitting means a fitting having interference between the hole and the shaft, and the gap fitting means a fitting having a gap between the hole and the shaft; the stop fitting means a fitting in the gap and tightly fitting In the middle, the fitting of the gap or the interference is generated by the tolerance. That is, the close fitting means that the shaft diameter of the shaft body 20 is formed smaller and fit than the shaft diameter of the hollow shaft 33, and the gap fitting means the shaft diameter compared to the hollow shaft 33, the shaft The shaft diameter of the body 20 is formed to be larger and fitted; the stop fitting means that it is in the middle. In the X portion, the shaft body 20 and the bearing support portion 30 are fixed by tight fitting or locking engagement of the shaft body 20 and the hollow shaft 33. Further, in the Y portion, since the gap is formed between the shaft body 20 and the hollow shaft 33, the friction is fastened by the friction fastening means 39 which will be described later. Next, at the end of the hollow shaft 33 of the present embodiment, a slit 34 (see FIG. 12) into which the friction fastening means 39 to be described later is fitted, and a screw hole 35 for fixing the friction fastening means 39 are formed.

The bearing support portion 30 of the present embodiment holds the bearing by the outer casing 37 31, 32 and the hollow shaft 33, and the friction fastening means 39 shown in Fig. 5 is fixed to the hollow shaft 33.

The friction fastening means 39 is for fastening the hollow shaft 33 to the shaft body 20. As shown in FIG. 5, a screw hole 40 for inserting a screw is formed in the friction fastening means 39. The friction fastening means 39 is inserted into the slit 34 formed in the end portion of the hollow shaft 33 toward the end portion of the hollow shaft 33 (see FIG. 12), and is inserted into the screw hole. The screw of 40 is fastened to the screw hole 35 and fixed to the hollow shaft 33. Next, the friction fastening means 39 fixed to the hollow shaft 33 is a shaft body 20 having a hollow shaft 33 and a portion indicated by Y in Fig. 1 (a shaft body 20 fitted with a gap with the hollow shaft 33) According to the frictional force obtained by the action of the above-mentioned protruding portion 39a, it is configured by friction fastening.

The rotation of the shaft body 20 is supported by the bearing support portion 30 and transmitted to the generator 50 to cause the generator 50 to generate electric power. The generator 50 of the present embodiment includes a coupler 51 for transmitting the rotational driving force of the shaft body 20 to the drive shaft 53 of the generator 50, and the drive shaft 53 by the rotational driving force of the shaft body 20. Rotating; speed increasing device 55, which accelerates the rotation of drive shaft 53, and joint 57, which engages bearing support portion 30 and generator 50; is configured as a modular unit.

The coupler 51 is for transmitting the rotational driving force of the shaft body 20 to the drive shaft 53 of the generator 50. The coupler 51 is coupled to the key groove 54 formed in the drive shaft 53 of the generator 50 by the key groove 21 formed in the shaft body 20, thereby transmitting the rotational driving force of the shaft body 20 to the drive shaft of the generator 50. 53, and the drive shaft 53 of the generator 50 can be rotated.

The speed increasing device 55 is for increasing the rotation of the drive shaft 53. For example, a planetary gear device can be used for the speed increasing device 55.

The joint 57 is used to engage the bearing support portion 30 and the generator 50. As shown in FIG. 1, the joint 57 is disposed between the bearing support portion 30 and the generator 50, and functions as a member in which the coupler 51 and the outer cover of the speed increasing device 55 are housed.

The generator 50 transmits the rotational driving force from the shaft body 20 to the drive shaft 53 via the coupler 51, and the rotation speed of the drive shaft 53 is increased by the speed increasing device 55 to generate electric power. Further, the generator 50 is provided coaxially with the vane 10 and the shaft body 20 by the coupler 51 and the joint 57.

Next, the hydroelectric power generating apparatus 100 of the present embodiment is configured such that at least the vane 10, the shaft body 20, the bearing support portion 30, and the generator 50 are modularized units (see FIGS. 2 to 8). By assembling all the units, the hydroelectric power generating apparatus 100 shown in Fig. 1 can be completed without fine adjustment.

Therefore, according to the hydroelectric power generation apparatus 100 of the present embodiment, since it is possible to transport each moduleized unit to the installation place, it is not necessary to use a large heavy machine, and it is possible to solve the problem that the installation field of the hydroelectric power generation apparatus 100 is limited to The problem of getting into the place of large heavy machinery. Further, according to the hydroelectric power generating apparatus 100 of the present embodiment, the assembly work can be reduced, and the assembly cost can be quickly assembled and installed. Further, the hydroelectric power generating apparatus 100 of the present embodiment is installed at the place where the hydroelectric power generating apparatus 100 is installed, and it is not necessary to perform fine adjustment for coaxially connecting the vane 10, the shaft body 20, the bearing support portion 30, and the generator 50. Since the conventional hydroelectric power generation device is carried into the installation site in a state in which the device is assembled, it is necessary to perform fine adjustment work of the hydroelectric power generation device at the installation site due to vibration during movement or the like. Therefore, according to the hydroelectric power generating apparatus 100 of the present embodiment, the work at the time of installation work can be simplified as compared with the prior art. Furthermore, for example, even if there are vanes 10, the shaft body 20, In the case where the bearing support portion 30 or the generator 50 malfunctions, since the unit can be taken out for maintenance, the hydroelectric power generating device 100 having high durability can be provided.

The overall configuration example of the hydraulic power unit 100 of the present embodiment has been described above. Next, an example of a method of assembling the hydroelectric power generating apparatus 100 according to the present embodiment will be described with reference to Figs. 9 to 14 . FIG. 9 is a view for explaining a method of assembling the shaft body and the bearing support portion according to the embodiment, and FIG. 9( a) is a view showing a shaft body and a bearing support portion; b) shows a state in which the shaft body is pressed into the bearing support portion. Fig. 10 is a view for explaining a jig for pulling up a shaft body relative to a bearing support portion according to the embodiment, and Fig. 10(a) is a view showing a state in which a jig is placed on a bearing support portion. Figure (b) shows the state in which the first bolt is inserted into the jig; the sub-graph (c) in the figure shows the shaft body relative to the bearing support by the first bolt a diagram of the relative pull-up state; the sub-graph (d) in the figure shows a state in which the second bolt is inserted into the jig; the sub-graph (e) in the figure shows the shaft by the second bolt A diagram of a state in which the body is relatively pulled up with respect to the bearing support portion. Fig. 11 is a view showing a state in which the shaft body and the bearing support portion are assembled in the embodiment. Fig. 12 is an enlarged view of a main portion for explaining the fixing of the hollow shaft to the friction fastening means of the embodiment. Fig. 13 is a view showing a state in which the hollow shaft and the shaft body are frictionally fastened by the friction fastening means in the embodiment, and the part (a) in the figure shows the whole of the hollow shaft and the shaft body; Part (b) is an enlarged view of a part of the hollow shaft and the shaft body. Figure 14 is a diagram for explaining the assembly method of the modularized unit, wherein the part (a) of the figure shows a diagram of the unit being modularized; the part (b) of the figure is shown by A diagram of a hydroelectric installation completed after all units have been assembled.

First, the assembly of the hydroelectric power generating apparatus 100 of the present embodiment is as shown in FIG. 9 (a), and the shaft body 20 is pressed into the bearing support portion 30, as shown in FIG. As shown in part (b), the bearing support portion 30 is fitted to the end portion of the shaft body 20. Next, as shown in FIG. 10, the shaft body 20 is relatively pulled up with respect to the hollow shaft 33 by the jig 41 for pulling up the shaft body 20 in the bearing support portion 30.

The jig 41 of the present embodiment has a cylindrical shape having a crotch portion. As shown in part (a) of Fig. 10, the jig 41 is fixedly disposed to the hollow shaft 33 by inserting a bolt into the screw hole 35 formed at the end of the hollow shaft 33. Next, as shown in a part (b) of FIG. 10, the first bolt 43 for pulling up the shaft body 20 is inserted into the screw hole 42 of the jig 41 and the screw hole 22 of the shaft body 20. As shown in FIG. 10(b), when the first bolt 43 is slightly inserted into the screw hole 22 of the shaft body 20, the head of the first bolt 43 is used by the jig 41 to the axis of the shaft body 20. The movement in the axial direction is restricted in such a manner as not to move, and the amount of distance of the symbol α indicated by two arrows in the sub-figure (b) of Fig. 10 is shortened with respect to the screw hole 22 of the shaft body 20. Therefore, by tightening the first bolt 43 from the state of the sub-figure (b) of FIG. 10, the first bolt 43 of the first bolt 43 whose head is restricted in the axial direction is divided by FIG. The two arrows shown in (b) indicate that the distance is screwed into the screw hole 22 of the shaft body 20, and the shaft body 20 is relatively pulled up with respect to the hollow shaft 33. Next, when the first bolt 43 reaches the bottom surface of the screw hole 22 of the shaft body 20, it is in the state shown in FIG. 10 (c).

After the state shown in the sub-figure (c) of FIG. 10, the first bolt 43 is taken out by the autonomous device 41 and the shaft body 20. Then, as shown in the part (d) of FIG. 10, the screw hole 22 of the jig 41 and the screw hole 22 of the shaft body 20 are inserted into the shaft body 20 for pulling up by the first bolt 43 and then pulled up. The second bolt 45. The second bolt 45 is a bolt that is shorter than the length of the first bolt 43. Similarly to the first bolts 43, the second bolts 45 are slightly inserted into the screw holes 22 of the shaft body 20, and the heads of the second bolts 45 are not moved in the axial direction of the shaft body 20 by the jig 41. The way is restricted to move and relative to the shaft The screw hole 22 of 20 shortens the distance of the symbol β indicated by two arrows in the sub-graph (d) of Fig. 10. Therefore, the second spiral 45 is further fastened by the state of the sub-graph (d) of Fig. 10, and the second spiral 45 is screwed in by the distance indicated by the two arrows of the sub-graph (d) of Fig. 10. The screw hole 22 of the shaft body 20 causes the shaft body 20 to be pulled up relative to the hollow shaft 33. Next, when the second bolt 45 reaches the bottom surface of the screw hole 22 of the shaft body 20, the state shown in a part (e) of Fig. 10 is obtained.

Further, until the shaft body 20 and the bearing support portion 30 reach a desired position, the shaft body 20 is relatively pulled up with respect to the hollow shaft 33 by using a suitable jig 41 and a bolt as described above, and the fitting shaft body 20 is fitted. The bearing support portion 30 is in the state shown in Fig. 11 .

As shown in Fig. 11, the frictional fastening means 39 shown in Fig. 5 is fitted to the shaft body 20 and the bearing support portion 30 which reach the desired position. As shown in FIG. 12, a slit 34 for fitting the friction fastening means 39 is formed at the end of the hollow shaft 33. On the other hand, the friction fastening means 39 is formed with a projecting portion 39a having a wedge-shaped cross-sectional shape toward the end portion of the hollow shaft 33. As shown in Fig. 12, the projection 39a of the friction fastening means 39 is inserted into the slit 34, and the screw inserted into the screw hole 40 is fastened to the screw hole 35, and the friction fastening means 39 is fixed to the hollow shaft 33. . Then, as shown in FIG. 13, the friction fastening means 39 fixed to the hollow shaft 33 can frictionally fasten the hollow shaft 33 and the shaft body 20 in accordance with the frictional force obtained by the action of the above-mentioned protruding portion 39a.

Further, in the present embodiment, the shaft body 20 and the hollow shaft 33 have a plurality of fitting sizes and are fitted. As shown in Fig. 1, in the hydroelectric power generating apparatus 100 of the present embodiment, the fitting size of the portion X in which the load of the vane 10 is concentrated is used to closely fit or stop the shaft body 20 and the hollow shaft 33. And about the part other than Y The fitting size is such that the shaft body 20 and the hollow shaft 33 are fitted in a gap.

In the hydroelectric power generator 100 of the present embodiment, the shaft body 20 is preferably press-fitted into the hollow shaft 33 of the bearing support portion 30 by fitting with a gap fit. That is, the portion Y in which the gap is fitted can easily insert the shaft body 20 into the hollow shaft 33 of the bearing support portion 30, and in the portion X which is tightly fitted or stopped, the shaft body is used. 20 is formed by being pressed into the hollow shaft 33 of the bearing support portion 30. Further, in the hydroelectric power generating apparatus 100 of the present embodiment, the shaft body 20 can be fixed to the hollow shaft 33 of the bearing support portion 30 by fitting with a tight fitting (stop fitting), and can withstand The load generated by the flow of water.

With such a configuration, the bearing support portion 30 and the shaft body 20 can be easily assembled. Further, according to the hydroelectric power generating apparatus 100 of the present embodiment, the position at which the shaft body 20 and the hollow shaft 33 of the bearing support portion 30 are fitted can be arbitrarily adjusted by changing the fitting size. Further, the hydroelectric power generating apparatus 100 of the present embodiment has a configuration in which the hollow shaft 33 and the shaft body 20 are fixed by a fitting size of a tight fitting or a snap fitting, and the friction fastening means 39 The portion Y of the hollow shaft 33 that is fitted into the gap between the shaft body 20 is frictionally fastened. Therefore, the shaft body 20 of various lengths can be easily provided by changing the fitting size or the fitting position of the shaft body 20 and the hollow shaft 33. Therefore, according to the hydroelectric power generating apparatus 100 of the present embodiment, the shaft body 20 having a desired length can be used.

Next, the assembled bearing support portion 30 and the shaft body 20, the vane 10 configured as a modular unit, and the generator 50 configured as a unit that is modularized are assembled. As shown in FIG. 14 (a), the generator 50 is disposed on the upper portion of the shaft body 20 and the bearing support portion 30, and the vane 10 is disposed on the lower portion of the shaft body 20 and the bearing support portion 30.

The generator 50 is assembled to the front end of the shaft body 20 by providing a generator 50 including the coupler 51. First, the key groove 21 formed in the shaft body 20 and the key groove 54 formed in the drive shaft 53 of the generator 50 are coupled by the coupler 51. Thereby, the rotational driving force of the shaft body 20 is transmitted to the drive shaft 53 of the generator 50, and the drive shaft 53 of the generator 50 can be rotated. Next, a joint 57 is provided between the generator 50 and the bearing support portion 30 so as to accommodate the coupler 51 and the speed increasing device 55.

The vane 10 is disposed such that the central axis A of the vane 10 is coaxial with the central axis of rotation of the shaft body 20, and is fastened to the shaft body 20 by, for example, a bolt and a nut.

In this manner, each of the vane 10, the shaft body 20, the bearing support portion 30, and the generator 50 is configured as a unit that is modularized, and the hydroelectric power generating device 100 that is completed by assembling all the units is provided, for example, in a river. Wait.

According to the hydroelectric power generation apparatus 100 of the present embodiment, since it is possible to transport each moduleized unit to the installation place, it is not necessary to use a large heavy machine, and it is possible to solve the problem that the installation field of the hydroelectric power generation apparatus 100 is limited to a large loadable space. The problem of the know-how of the place of heavy machinery. Further, the hydroelectric power generating apparatus 100 of the present embodiment is completed by assembling a unit formed as a unit that is previously modularized, and the assembly work amount can be reduced, and can be quickly assembled and installed. Further, in the installation place of the hydroelectric power generation apparatus 100, since the fine adjustment of the vane 10, the shaft body 20, the bearing support portion 30, and the generator 50 is not required to be coaxial, the traffic is inconvenient even in a mountainous area, for example. The place can still be easily assembled and set. Further, according to the hydroelectric power generating apparatus 100 of the present embodiment, since a large heavy machine is not required and can be assembled and installed quickly and easily, the cost of assembly and installation can be reduced. Further, even if there are, for example, the vane 10, the shaft body 20, the bearing support portion 30, or the generator 50 In the case where any one of the faults occurs, since the unit can be taken out for maintenance, the hydroelectric power generating apparatus 100 having high durability can be provided.

The example of the assembly method of the hydraulic power unit 100 of the present embodiment has been described above. Next, a modification of the vane 10 will be described with reference to Figs. 15 to 19 . Here, Fig. 15 is a view showing a first modification of the vane; and Fig. 16 is a view showing a second modification of the vane. Further, Fig. 17 is a view showing a third modification of the vane, in which a part (a) shows a whole diagram of a third modification of the vane, and a part (b) of the figure shows a wheel. The leaf constitutes a diagram of the component. Fig. 18 is a view showing a fourth modification of the vane; Fig. 19 is a view showing a fifth modification of the vane. Incidentally, the same or similar configurations as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[First variant of the bucket]

As shown in FIG. 15, the vane 110 of the first modification includes a pair of plate portions 111 which are in the shape of a disk, and five blade portions 113 which are connected to the pair of plate portions 111, and a pair of plate portions 111. The five blade portions 113 are integrally formed.

The blade portion 113 of the first modification is formed to be substantially The shape of the word has a curved shape portion R at the corner portion. The five blade portions 113 are disposed so as to have equal intervals in the circumferential direction of the pair of plate portions 111. In order to integrally form the blade portion 113 and the pair of plate portions 111 at both ends of the blade portion 113, a disk-shaped fixing portion 115 fitted to the plate portion 111 is formed. The vane 110 of the first modification will be integrally formed into a rough The blade portion 113 and the fixing portion 115 having the shape of a word serve as the vane constituent member 117.

The vane 110 of the first modification is formed by sandwiching the two ends of the vane forming member 117, that is, the fixing portion 115, by the plate portion 111 including the two sheets 112, 112, and by using, for example, a bolt. The fixed joining is performed so that the five blade portions 113 and the pair of plate portions 111 are integrally formed. Next, the vane 110 of the first modification is formed to be substantially The shape of the blade of the shape of the blade constitutes a cage structure in which the members 117 are combined, and the strength of the blade 110 is maintained by the pair of plate portions 111 and the blade portion 113.

[Second variant of the bucket]

As shown in Fig. 16, the vane 210 of the second modification includes a pair of plate portions 211 having a disk shape, three blade portions 213 connecting the pair of plate portions 211, and a rotating shaft 219 connected thereto. The center portion of the pair of plate portions 211; and the pair of plate portions 211 and the three blade portions 213 and the rotating shaft 219 are integrally formed.

The rotating shaft 219 is formed of a lightweight member such as fiber reinforced plastics (FRP), and the plate 212 on the lower side of the plate portion 211 on the upper side and the plate 212 on the upper side of the plate portion 211 on the lower side (inside) The plates 212) are formed integrally as one.

The blade portion 213 of the second modification is formed to be substantially The shape of the word has a curved shape portion R at the corner portion. The three blade portions 213 are disposed so as to have equal intervals in the circumferential direction of the pair of plate portions 211. In the same manner as described above, in the same manner as described above, in order to integrally form the blade portion 213 and the pair of plate portions 211, a disk-shaped fixing portion 215 fitted to the plate portion 211 is formed. The vane 210 of the second modification will be integrally formed as a rough The blade portion 213 and the fixing portion 215 having the shape of a word serve as the vane constituent member 217.

In the vane 210 of the second modification, the vane constituent member 217 having the blade portion 213 and the fixing portion 215 is disposed on the plate member 212a and the lower plate portion on the lower side of the upper plate portion 211 integrally formed with the rotating shaft 219. The outer side of the plate member 212b on the upper side of the 211 is sandwiched by the outer plate member 212 (the plate member 212c on the upper side of the plate portion 211 on the upper side and the plate member 212d on the lower side of the plate portion 211 on the lower side), and by using, for example, a bolt The three blade portions 213 and the pair of plate portions 211 are integrally formed by fixed engagement. Next, the vane 210 of the second modification is formed to be substantially The shape of the word vane constituting member 217 is combined to form a cage structure, and the blade portion 213 and the rotating shaft 219 ensure the strength of the vane 210.

[Third variant of the bucket]

As shown in FIG. 17 (a), the vane 310 of the third modification includes: a pair of plate portions 311 having a disk shape; and three blade portions 313 connected to the pair of plate portions 311; The rotating shaft 319 is connected to the center portion of the pair of plate portions 311, and the pair of plate portions 311 and the three blade portions 313 and the rotating shaft 319 are integrally formed.

As shown in part (b) of Fig. 17, the vane 310 of the third modification is formed by combining the frame-shaped vane constituent members 317. The blade constituting member 317 having the frame shape and the rotating shaft divided body 319' divided into one-third of the axis of the rotating shaft 319 in the axial direction of the rotating shaft 319 constitute the blade portion 313 and the rotating shaft 319. . Therefore, the three blade portions 313 and the rotating shaft 319 are completed by combining the three blade forming members 317. Next, from this state, the vane 310 of the third modification is completed by connecting the pair of plate portions 311 to both ends of the rotating shaft 319. Further, each member constituting the vane 310 of the third modification is fixedly joined by, for example, a bolt.

The vane 310 of the third modification is a frame structure formed by combining the frame-shaped vane constituent members 317, and the strength of the vane portion 317 is increased by the frame-shaped vane constituent member 317, and the frame shape is 1 side as the rotating shaft 319 Part of it is used to ensure the strength of the vanes 310.

[Fourth variant of the bucket]

As shown in FIG. 18, the vane 410 of the fourth modification includes a pair of plate portions 411 having a disk shape, and five blade portions 413 that connect the pair of plate portions 411, and a pair of plate portions 411. The five blade portions 413 are integrally formed.

The blade portion 413 of the fourth modification is configured by a curved portion R and a linear portion S. The five blade portions 413 are disposed so as to have equal intervals in the circumferential direction of the pair of plate portions 411. In order to integrally form the blade portion 413 and the pair of plate portions 411 at both ends of the curved portion R of the blade portion 413, a disk-shaped fixing portion 415 fitted to the plate portion 411 is formed. The vane 410 of the fourth modification has the blade portion 413 and the fixed portion 415 which are integrally formed as the vane constituent member 417.

In the vane 410 of the fourth modification, the both ends of the vane forming member 417, that is, the fixing portion 415 are sandwiched by the plate portion 411 including the two sheets 412 and 412, respectively, and are fixedly joined by, for example, bolts or the like. The five blade portions 413 and the pair of plate portions 411 are integrally formed. Next, the vane 410 of the fourth modification is formed so as to be substantially The five-vane-constituting member 417 having a shape of a word is formed into a cage structure, and the strength of the vane 410 is maintained by the pair of plate portions 411 and the blade portion 413. In addition, since the blade portion 413 of the fourth modification is configured by the curved portion R and the linear portion S, the plate portion 411 is disposed adjacent to the curved portion R of the blade portion 413. In other words, the blade portion 413 of the fourth modification is connected to the curved portion R by the plate portion 411, and is different from the blade portion 113 of the first modification, and is not coupled to the linear portion S by the plate portion 411.

[Fifth variant of the bucket]

As shown in FIG. 19, the vane 510 of the fifth modification includes a pair of plate portions 511 having a disk shape, and five blade portions 513 that connect the pair of plate portions 511, and a pair of plate portions 511. The five blade portions 513 are integrally formed.

The blade portion 513 of the fifth modification is constituted by the linear portion S. The five blade portions 513 are disposed so as to have equal intervals in the circumferential direction of the pair of plate portions 511. In order to integrally form the blade portion 513 and the pair of plate portions 511 at both ends of the blade portion 513, a screw hole (not shown) is formed, and the screw hole functions as the fixing portion 515 of the fifth modification. In the vane 510 of the fifth modification, the blade portion 513 and the fixing portion 515 which are integrally formed into a linear shape are used as the vane constituent member 517.

In the vane 510 of the fifth modification, the both ends of the vane forming member 517, that is, the fixing portion 515 are fixedly joined to the plate portion 511 including the two sheets 512 and 512 by, for example, bolts. The blade portion 513 and the pair of plate portions 511 have an integral structure. Next, the vane 510 of the fifth modification is a cage structure formed by combining the vane constituent member 517 formed in a linear shape with the pair of plate portions 511, and the wheel is held by the pair of plate portions 511 and the vane portion 513. The strength of the leaf 510. Further, the blade portion 513 of the fifth modification is constituted by the linear portion S, and the plate portion 511 and the blade portion 513 are joined at substantially 90 degrees.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to the scope of the embodiments described above. A variety of changes or improvements can be added to the above embodiments.

For example, the number of the blade portions (13, 113, 213, 313, 413, 513) can be arbitrarily changed.

Further, for example, the friction fastening means 39 of the present embodiment is formed separately from the hollow shaft 33 and is fixed to the hollow shaft 33. However, the friction fastening means 39 may be formed with respect to the hollow shaft 33.

Further, the generator 50 of the present embodiment is disposed above the shaft body 20 and is connected in series. However, for example, a pulley may be provided at the front end portion of the shaft body 20 and the front end portion of the drive shaft 53 of the generator 50, respectively. For example, the shaft 20 is placed in parallel with the generator 50 via a connecting pulley such as a timing belt, and is connected in parallel.

It is obvious from the scope of the patent application that the various modifications and improvements can be included in the technical scope of the present invention.

10‧‧‧Leaves

11‧‧‧ Board Department

13‧‧‧ Blade Department

17‧‧‧Face components

20‧‧‧Axis

21‧‧‧ (shaft) keyway

30‧‧‧ Bearing support

31‧‧‧ Bearings (radial bearings)

32‧‧‧ Bearings (angular contact ball bearings)

33‧‧‧ hollow shaft

37‧‧‧Shell

39‧‧‧ Friction fastening means

50‧‧‧Generator

51‧‧‧ Coupler

53‧‧‧ drive shaft

54‧‧‧ (drive shaft) keyway

55‧‧‧Speed increasing device

57‧‧‧Connectors

60‧‧‧Support board

100‧‧‧Hydroelectric installation

C‧‧‧Waterway

X, Y‧‧‧ part

Claims (5)

A hydropower generating device having: a vane rotated by a water flow; a shaft body rotating with the rotation of the vane; and a bearing support portion having a bearing rotatably supporting the shaft body; And a generator that generates electric power by a rotational driving force of the shaft body; wherein at least the vane, the shaft body, the bearing support portion, and the generator are configured to be modularized unit. The hydroelectric power generation device according to claim 1, wherein the bearing support portion includes: a hollow shaft; and a friction fastening means that frictionally fastens the hollow shaft and the shaft body. The hydroelectric power generation device according to claim 2, wherein the hollow shaft and the shaft system have a plurality of fitting sizes and are fitted. The hydroelectric power generation device according to any one of claims 1 to 3, wherein the vane system includes: a pair of plate portions having a disk shape; and a plurality of blade portions connected to the pair of plate portions; The plate portion and the plurality of blade portions are integrally formed. A method for assembling a hydroelectric power generation device, comprising: a vane, which is rotated by a water flow; a shaft body that rotates with the rotation of the vane; and a bearing support portion, It is provided with a bearing that rotatably supports the shaft body; and a generator that generates electric power by a rotational driving force of the shaft body; wherein at least the vane, the shaft body, the bearing support portion, and the generator are each configured as a modular unit. A step of performing a step of pressing the shaft body with respect to the hollow shaft having the bearing support portion to form a state in which the bearing support portion is fitted to an end portion of the shaft body; a step of frictionally fastening the hollow shaft of the bearing support portion to the shaft body by fitting the fixing means to the shaft body and the bearing support portion; and providing the generator to the assembled bearing support portion And an upper portion of the shaft body, and the step of disposing the vane on the bearing support portion and the lower portion of the shaft body.