JPS61500926A - Wind rotating body parts - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Rotating body parts This invention relates to a rotating body member, that is, a rotating body intended to be driven by wind. Regarding parts. Moreover, in particular, the present invention provides a method in which the rotating body member is rotated about a substantially horizontal shaft ring. A central hub section attached for movement and a position fixed relative to the hub section. a polygon secured to said hub portion at a location and extending generally radially outwardly from said hub portion; The present invention relates to a rotating body member of this type having several rotating body blades.

Such rotating body members were first used as drive VtM for electric wind power plants. It is. However, a significant drawback of this prior art wind farm is that the power plant layout is Electricity is drawn from the wind farm only when the magnitude of the wind speed at the site is within a relatively limited range. It is possible to obtain the following. This means that the wind speed exceeds a relatively low upper limit and In order to facilitate any operation in all wind power plants, wind speeds have a relatively high lower limit. must be exceeded and from sustaining ml scratches as a result of excessively high mechanical strains. Due to the fact that in order to prevent power plants it is necessary to remove them from operation. Forgive me In order to make it possible to exclude the power plant from operation at high wind speeds where it is not possible to is a movable vane, i.e. the power plant is relative to the hub part around the longitudinal axis during operation It is usually driven by a rotating body member having blades that rotate.

The invention simultaneously provides considerably improved safety of operation compared to prior art rotary members. The first vG to operate within a practically increased range of changes in existing wind speeds by providing For that purpose it is an object of the present invention to provide an improved rotating body member of the kind described above. do.

The invention provides that each rotor blade has a larger blade at its outer end than at its inner end. A rotating body member of the type described above, which is initially characterized in that it has a root angle, is used for the purpose described above. I would like to make a suggestion. In this situation, the blade angle of the rotor blade is at any point along its length, i.e. at the zero rotation of the rotating member. It is intended to be understood as an angle formed in a plane perpendicular to an axis.

The rotating body vane device proposed by Honhaktsui is a device that can be used for rotating body members caused by wind at low wind speeds. The applied torque is considerably higher than previously known rotating components, and the blades of the aircraft a propeller, i.e. having a larger blade angle at its inner end than at its outer end In the same way as in case l! It comes down to what gets done. As a result, the rotation of the present invention The rolling element is substantially lower than previously possible! It is possible to start operations at speed A. can.

a rotor vane, i.e. a vane increasing in the direction from its inner end towards its outer end In addition, during operation, a conical vortex is formed in front of the rotating body member. This is due to the fact that it occurs in the air. The vortex creates a negative pressure in the radially internal portion of the rotating body member. Air arriving towards the radially outer part of the rotor blades forming a band or vacuum band. The M diameter of the zero conical vortex that causes the airflow to bend increases with increasing wind speed and the number of rotating body members. increases with increasing rotational speed. As a result, the rotating body parts are rotated at high wind speeds, i.e. so as to bring the incoming airflow to use only a limited driving action on the body member. , it becomes an automatic adjustment type that automatically adjusts the rotation speed to TI4. Therefore, the rotation of the present invention Rolling element 0 is operated at an infinitely high wind speed.

The blade angle of each rotor blade gradually increases from the inner end of the rotor blade toward its outer end. It is better to increase the vane angle from about 01 to v910 degrees at the inner end of each rotor vane while the blade angle at the outer end of each rotor blade is approximately 20 degrees to approximately 50 degrees. It is better to go up to about 30 degrees to about 401 degrees.

To promote the above-mentioned vortex formation and the automatic 5uit ability of the rotating body member caused by it. Furthermore, it is preferred that the hub portion of the rotating body member has a generally conical front portion.

The length of each rotor blade should be approximately the same size as the diameter of the hub at its widest point. It's urgent. It is preferable that the length of each rotating body member is from about 0.5 to about 3 of the diameter. stomach.

The above conical front section of the hub section is the radius of the widest part of the hub section, respectively. or should preferably have a suitable substantial axial length of the same order of magnitude as the diameter. Ru.

The invention will now be described in more detail with reference to the accompanying schematic drawings, in which: FIG.

FIG. 1 shows a drive 13 consisting of a rotary member according to an embodiment of the present invention selected by way of example. A perspective view of an electric wind turbine with loading, Figures 2A, 2B and 2C are front Three different enlarged cross-sectional views through the rotor blades of the rotor member, FIG. 4A, 4B, and 4C are partial cross-sectional front views of an electric wind turbine having a similar structure; 3' in FIG. 3, respectively, passing through the rotating body blades of the rotating body member for the pin. Three different enlarged cross-sectional views similar to Figures A, 2B and 2C; Figure 5 is a rotating body; Figure 3 shows a partial cross-section of a preferred type of connection between a vane and a central hub portion of a rotating body member;

The wind turbine shown in FIG. 1 has a rotating body member generally designated 10. The wind turbine shown in FIG.

This rotary member is connected to a power generator (not shown) installed in the cylindrical housing 11. ), said housing 11 serves as a drive device for the rotating body member 10 and the power generation In order to establish an appropriate drive connection between the machine and the A bearing device that supports the rotating body member 10 in order to rotate around a flat axis (the first factor is the (not shown) is also enclosed.

Rotating body member 10. At its end remote from the housing 11 the rod 13 It has a wind-operated steering vane 12 rigidly connected to the housing. Reference@Number 17 is almost 8118 supporting housing 11 that is freely rotatable about a vertical axis; The upper part of the strike is shown. The equipment for the steering blade 12 and rotatable support Hiif 18 is Continuously adjust the positions where the housing 11 allows the rotating body member 10 to rotate with respect to the wind. It comes down to hitting the target.

The rotor member 10 has a generally conical front portion 14 and a number of equal rotor vanes 16. A central hub section consisting of generally radially spaced (also cylindrical) sections 15; have a minute. In the case shown in FIG. 1, the rotating body member has three blades. deer However, said number should preferably be 3 or a multiple of 3, such as 6. or any other number of rotor blades.

The rotor vane 16 is fixed to the rear hub member 15 in its relatively fixed position. . However, the connection between the rotor blades and the hub portion is such that the blades are fixed to the hub. When setting up each installation, adjust these angular positions so that the partial circumferences fit properly in position. It will now be possible to place them. One suitable type of such concatenation is This is shown in Figure 5.

V8 mold with characteristics of rotor blades is shown in FIGS. 2A, 2B, and 2C.

Each of these drawings is one piece from Figure 1! taken along ll1lASB and C As shown in the cross-sectional view showing the cross section through the rotor blade 1, the rotor blade 1 The vane angle of 6 increases progressively from the inner end of each vane towards its outer end. Before The angle is the rotation plane R of the blade 16 extending perpendicularly to the horizontal rotation axis of the rotating body member 10. , the respective angles between the chord of the blade part in question, shown as ■, ■8 and vo. It will be done. The inner end of the vane 16 as shown in FIGS. 2A, 2B, and 2C. At section A near the center of the blade 16 the angle vA is only about 2 degrees, while at section B near the center of the blade 16 The angle V, is substantially wider, about 20 degrees, and the section near the outer end of the vane 16 Angle V on plane C. is still wide, about 40 degrees.

During operation of 812, as a result of the shape shown and the arrangement of the rotor vanes 16, a conical A vortex is formed in the air in front of the rotating body member 1o. This vortex formation has an almost conical front increased by the hub portion 14, the axial length of which is alternately It is of the same order of magnitude as the widest diameter of the hub portion, which is of the same order of magnitude as the length of the vane 16.

As a result of said vortex formation, the incoming air flows through the rotating frontage rolling blades 1 of the rotating body member 10. The outer circle r@ part of the annular surface swept by 6 is radially outward. You will be able to do it. The magnitude of this bending of the incoming air and the diameter of the vacuum band created at the same time are It depends on the actual wind speed and the rotational speed of the rotating body member 10. At high wind speeds, rotating parts automatic m-control system, which allows for maximum tolerance even when wind speeds of very high magnitude occur. Continuously maintain its rotational speed below the maximum speed.

The modified structure shown in Figures 3, 4A, 4B, and 4C is suitable for use in small areas. 1, 2A, 2B, and 2C. In Figure 3 1, the front hub section 14 is shorter than in FIG. 1, and the number of rotor blades is only two instead of three. It is. Furthermore, the housing 11 has a diameter approximately equal to the maximum diameter of the hub portion of the rotating body member 1o. shown with a new diameter. Moreover, the left end of the housing 11 is located at the rear. It is rigidly connected to the hub part 15 and rotated by bearings 21 into two annular support plates 2o. A rotatably mounted central horizontal shaft 19 is shown in partially uncovered section. . A shaft 22 defined between plates 20 in the housing 11 provides lubrication for the bearing 21. Shown as being filled with oil.

The cross-sectional views shown in Figures 4B and 4C correspond to those shown in Figures 2B and 2C. Approximately equal to the figure. However, FIG. 4A shows that the vane angle vA is approximately 10 degrees instead of 2 degrees. 2A in that the blade 16 is thinner than that in FIG. 2A.

The connection between the rotor blades 16 and the hub portion 15 shown in FIG. Determine the blade angle appropriately for the rotating body member when fixing it to its hub part The connection shown is firmly attached to the rear hub portion 15, which serves to make it possible to Fixed mounting is at the base 23, split upper tightening is at the ring 24, and tightening is at the port 25. has. At its inner end, the vane 16 is firmly attached at a suitably glazed position. between the corresponding chamfered surface of the ring 24 and the base 23 so that the It has a head 26 with a chamfered end surface used to allow it to be cut.

The insect turbine, which is almost similar to the turbine shown in Figure 1, has a total rotating body of about 400 cm. A maximum hub diameter of approximately 100 cm was tested continuously over a four month period.

During this period, the zero rotating body, whose wind speed was changed from zero to approximately 30 m/s, was approximately 2 to 3 m/s. It can be seen that it starts rotating at a wind speed of S, and the maximum speed is set to about 1500 rpm. Ru. You can see that it is set to .

The present invention is not limited to the embodiments described above and shown in the drawings, but can also include many other embodiments. Embodiments can be implemented within the scope of the invention.

FIG. 1 Bolt t1! Special song cow

Claims (8)

[Claims] 1. A rotating member is mounted for rotational movement about a substantially horizontal axis, and the hub fixed to said hub portion in a fixed position relative to said hub portion; a central hub portion with a number of rotor vanes extending generally radially outwardly from the hub portion; In the wind rotating body member, each rotating body member (16) has its inner end to its outer end. A wind rotating body member characterized by having a larger blade angle (V) in some parts. 2. The blade angle (V) of each rotor blade (16) is adjusted from the inner end of the rotor blade to its outer edge. The wind rotating body according to claim 1, characterized in that the wind rotation body gradually increases toward the opposite ends. Element. 3. The vane angle (VA) at the inner end of each rotating body vane (16) is approximately 0 degrees to approximately 10 degrees. On the other hand, the blade angle (VC) at the outer end of each rotor blade (16) is approximately 20 The temperature is about 50 degrees from the skin, preferably about 30 degrees to about 45 degrees. The wind rotating body member according to claim 1 or 2. 4. characterized in that the hub portion (14, 15) has a generally conical front portion (14); A wind rotating body member according to any one of claims 1 to 3. 5. Said hub in which the length of each rotor blade (16) is the widest part (15) of the hub portion Claims 1 to 4, characterized in that the size is about the same as the diameter of the part. The wind rotating body member described in any of the preceding paragraphs. 6. The length of each rotating body blade (16) is about 0.5 to about 3 times the diameter. A wind rotating body member according to claim 5. 7. The substantially conical front portion (14) of the hub portion (14, 15) has a substantial axial length. The wind rotating body member according to claim 4, characterized in that the wind rotating body member has a diameter. 8. The axial length of the hub portion (14, 15) is also larger than that of the portion (15). Claim 7, characterized in that each has a size comparable to a radius or a diameter. The wind rotating body member described in .