JPH0788834B2 - Vane structure for fluid movement - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a blade structure in which a fluid is moved by rotation, and more specifically, in order to discharge or suck fluid from all directions in front of the blade. The present invention relates to a blade structure in which the blades have a substantially hemispherical shape as a whole.

[Prior Art] Propellers, screws, fans, etc. according to the prior art,
In the vane structure in which the fluid is forcibly moved by the rotational movement, regardless of whether it is for gas or liquid, it is
At the angle of about 90 degrees with respect to the axis of the shaft that rotates the hub, the blade shafts were fixed so that each blade shaft fits in one blade mounting plane.

In a propeller for an aircraft, the thickness and the degree of curvature of each blade are generally small, and in a screw for a ship, the thickness and the degree of curvature of each blade are generally large. Further, in fans such as fans and ventilation fans, the thickness and curvature of each blade occupy an intermediate position between the propeller of an aircraft and the screw of a ship.

[Problems to be Solved by the Invention] Propellers, screws, fans, etc. according to conventional techniques,
In the vane structure in which the fluid is forcibly moved by the rotational movement, the main purpose is to efficiently move the gas or the liquid in the axial direction of the shaft. It was limited to a structure in which a plurality of blades, each of which had a blade axis within a single blade mounting plane, were fixed at an angle of about 90 degrees with respect to the shaft to be rotated.

Therefore, the flow of the fluid forcibly moves the fluid on one side of the vanes back and forth to the other side of the vanes through the rotational movement of the vanes, with the vanes mounted on the outer periphery of the hub or boss as a boundary. However, the fluid could hardly be sucked in from a region other than the cylindrical region formed by the tip of each blade around the shaft.

On the contrary, in a fan or a stirring fan or screw, it is impossible to expand the fluid flow in a direction other than the axial direction of the shaft, for example, to an outflow direction of 90 degrees with respect to the shaft, as it is, It was necessary to attach a swing mechanism or an agitator before the rotating blade.

The present invention has been made based on the background described above, and each blade arranged on the hub or the boss that rotates by the shaft is a curved blade curved to a hemispherical shape.
When it is used for sucking fluid, it can suck fluid from outside the cylindrical area formed by the tip of each blade around the shaft, and when it is used for discharging fluid, each blade around the shaft is used. It is an object of the present invention to provide a vane structure for moving a fluid that allows the fluid to flow out to a region other than the cylindrical region formed at the tip of the.

[Means for Solving the Problems] In order to solve the above problems and achieve the expected object, the present invention provides a power source that provides a rotational driving force, and a shaft that is rotationally driven by the power source. A curved structure in which a plurality of slanted surfaces are connected to each other, in which the hub is fixed around the shaft and a plurality of blades are arranged on the outer peripheral surface of the hub at substantially equal angles. And each inclined surface is configured to have an angle change in the shaft direction and an angle change in the radial direction at the same time.

The inclined surface of each blade has a curved structure having an angle change of 90 degrees from the horizontal direction to the vertical direction in the shaft direction, and the entire blade has a hemispherical fluid scraping surface.

Further, each blade may have a smooth curved structure having an angle change from the horizontal direction to the vertical direction in the shaft direction, and at the same time, may be configured to be accompanied by the angle change in the radial direction.

Further, in a preferred embodiment according to the present invention, each blade has a fluid rake projecting from a portion which is a rear end side and an outer side surface with respect to the rotation direction, and an appropriate gap between each inclined surface and a curved surface. It is convenient to arrange a guide plate for guiding the moving direction of the fluid at the position.

[Operation] The operation of the present invention will be described with reference to FIGS.

First, in FIGS. 5 and 6, the shaft 12 is rotated counterclockwise as indicated by the thick arrow by the rotational driving force provided from the power source 10. Then, the shaft 12 is fixed around the shaft 12. Since the hub 2 thus rotated rotates counterclockwise, the curved blade 1 integrally formed on the outer peripheral surface of the hub 2 also rotates counterclockwise. When the curved blade 1 starts to rotate,
Since the mounting surface and the first inclined surface 4 have a fluid cutting angle, the fluid is moved upward in the drawing (see a thin solid arrow).

At the same time, the first sloping surface 4, the second sloping surface 5, the third sloping surface 6 and the fourth sloping surface 7 each have a structure in which they are curved in the direction of the shaft 12 up to an angle of about 90 degrees. Are moved in the directions of the thin solid arrows. That is, the fluid can move to approximately 0 to 180 degrees in the upper part of the figure.

In other words, the rotation of the curved blade according to the present invention is the same as the conventional blade, except that the mounting surface 3, the first inclined surface 4, the second inclined surface 5,
The same operational effect as in the case where they are installed at the respective positions of the third inclined surface 6 and the fourth inclined surface 7 and rotated simultaneously is achieved.

As shown in FIG. 5, the curved blade 1 is provided with guide plates 8, 8, 8, 8 for guiding the fluid in the flow direction, and a fluid rake 9 for concentrating the fluid in the upper portion of the upper hub 2. Is provided, the moving direction of the fluid is as shown in FIG.
The fluid on the suction side indicated by the broken line arrow is moved as indicated by the solid line arrow after passing through the curved blade 1.

Further, the structure of the curved vane 1 for moving fluid according to the present invention, when it is desired to diffuse the fluid as a whole, the guide plates 8, 8, 8,
8. If it is desired to concentrate the fluid in front of the hub 2 without providing the fluid scrap 9, the guide plates 8, 8, 8, 8 and the fluid scrap 9 can be used properly.

[Embodiment] A preferred embodiment of the present invention will be described below with reference to the drawings.

Referring to FIG. 1, an embodiment of the structure of a polygonal blade for fluid movement according to the present invention is one in which four curved blades 1 curved like a seagull blade are substantially crossed on the outer peripheral surface of a rotating hub 2. It is integrally formed so as to be arranged in a shape.

Since the hub 2 is fixed to the tip of the shaft 12 protruding from the power source 10 that provides the rotational driving force through a fixing means (not shown) and rotates in a range of high speed to low speed, the curved blade 1 also By rotating in a range from high speed to low speed, a fluid such as air or water can be moved.

The curved blade 1 is attached to the outer peripheral surface of the hub 2 by integrally forming at a mounting angle of approximately 90 degrees with respect to the direction of the shaft 12, that is, the axial center direction of the hub 2, and the outer surface of the mounting surface 3. A first slanted surface 4 connected to the end so as to bend at a predetermined angle in the downward direction of the figure (for example, 22.5 degrees), and a predetermined slanted surface in the downward direction of the figure at the outer end of the first slanted surface 4. The second inclined surface 5 that is continuously provided so as to be bent at an angle (for example, 22.5 degrees) and the outer end of the second inclined surface 5 is bent at a predetermined angle (for example, 40 degrees) downward in the drawing. And a fourth inclined surface 7 continuously connected to the outer end of the third inclined surface 6 so as to be bent downward at a predetermined angle (for example, 5 degrees) in the drawing. It consists of

In FIG. 2, the curved blade 1 is composed of the mounting surface 3, the first inclined surface 4, the second inclined surface 5, the third inclined surface 6 and the fourth inclined surface 7 as described above. By the first inclined surface 4 to the fourth inclined surface 7 that are continuously provided so as to be bent downward, a radial direction M that intersects with the axial center direction L of the shaft 12 (shown by the broken line, in the present invention, the shaft direction) at a right angle. For the mounting surface 3 along (dashed line),
The curved blade 1 is formed so as to be curved at an angle of about 90 degrees. The mounting surface 3, the first inclined surface 4, the second inclined surface 5, the third inclined surface 6 and the fourth inclined surface 7 are fluids each having a temperature of 10 to 40 degrees with respect to a horizontal plane including the radial direction M. It is continuously provided so as to have a cutting angle (in the case of gas, a wind cutting angle).

Again, in FIG. 1, each curved blade 1 has a first inclined surface 4
And the second inclined surface 5, between the second inclined surface 5 and the third inclined surface 6, between the third inclined surface 6 and the fourth inclined surface 7, and the lower end portion of the fourth inclined surface 7. Triangular guide plates 8,8,8,8 are arranged near the cut surface 1F of each fluid in order to guide the flowing direction of the fluid and to reinforce the curved blades 1, respectively, A fluid rake 9 is provided to concentrate the fluid from the tip of each curved blade 1 to the fluid cutting surface 1F. Of course, this fluid scraper 9 is provided for each curved blade 1 when it rotates in the clockwise direction. When each curved blade 1 rotates in the counterclockwise direction, the fluid cutoff is performed. It is provided for the fluid cut surface 1G opposite to the surface 1F.

Referring to FIG. 3, another embodiment according to the present invention will be described. Each curved blade 1 formed integrally with the hub 2 is
The curved surface 1A is not formed from the inclined surfaces that are bent and connected one after another but is curved substantially smoothly at an angle of about 90 degrees in the shaft direction. Inserted holes 1a, 1a, 1a, 1a are formed in the curved surface 1A at appropriate intervals in order to insert and fix a separately formed guide plate 8A. Note that 9A is a fluid scraper.

Referring to FIG. 4, another embodiment according to the present invention will be described. Each curved blade 1 formed integrally with the hub 2 is radially attached to the flat mounting surface 2A of the hub 2. The first inclined surface 4A that is inclined with a fluid cutting angle to it
And a second inclined surface 5A continuous with the first inclined surface 4A at an angle of about 30 degrees with respect to the shaft direction, and a second inclined surface 5A.
And a third inclined surface 6A continuously provided at an angle of about 60 degrees.

A guide plate is provided between the first inclined surface 4A and the second inclined surface 5A and between the second inclined surface 5A and the third inclined surface 6A of each curved blade 1, respectively.
8B and 8B are fitted and fixed in the fitting holes 1b and 1b formed in each curved blade 1. In addition, 9B is a fluid scraper.

Further, four auxiliary curved blades 1B are formed integrally with the outer peripheral surface of the hub 2 around the shaft (not shown) in a substantially cross shape below the hub 2 in the drawing.

Next, the operation of the fluid moving vane structure according to the present invention will be described with reference to FIGS.

First, in FIGS. 5 and 6, when the shaft 12 is rotated in the counterclockwise direction indicated by the thick arrow by the rotational driving force provided from the power source 10, the shaft 12 is fixed around the shaft 12. Since the hub 2 rotates counterclockwise, the curved blade 1 integrally formed on the outer peripheral surface of the hub 2 also rotates counterclockwise. When the curved blade 1 starts to rotate, the mounting surface 3 and the first inclined surface 4 have a fluid cutting angle, and thus the fluid is moved upward in the drawing (see a thin solid arrow). At the same time, the first sloping surface 4, the second sloping surface 5, the third sloping surface 6 and the fourth sloping surface 7 each have a structure in which they are curved in the direction of the shaft 12 up to an angle of about 90 degrees. Are moved in the directions of the thin solid arrows. That is, the fluid can move to approximately 0 to 180 degrees in the upper part of the figure.

In other words, the rotation of the curved blade according to the present invention is the same as the conventional blade, except that the mounting surface 3, the first inclined surface 4, the second inclined surface 5,
The same operational effect as in the case where they are installed at the respective positions of the third inclined surface 6 and the fourth inclined surface 7 and rotated simultaneously is achieved.

Then, as shown in FIG. 5, the curved blade 1 is provided with guide plates 8, 8, 8, 8 for guiding the flow direction of the fluid and a fluid rake 9 for concentrating the fluid in the upper portion of the upper hub 2. Is provided, the moving direction of the fluid is as shown in FIG.
The fluid on the suction side indicated by the broken line arrow is moved as indicated by the solid line arrow after passing through the curved blade 1.

Therefore, the structure of the curved vanes for moving the fluid according to the present invention is used when the fluid is to be diffused as a whole.
8. If it is desired to concentrate the fluid in front of the hub 2 without providing the fluid scraper 9, it is possible to properly use the guide plates 8, 8, 8, 8 and the fluid scraper 9.

Further, referring to FIG. 8, the operation when the structure of the curved blade for fluid movement according to the present invention is applied to a screw for a ship will be described.

In FIG. 8, contrary to the embodiment described above, the screw utilizing the present invention has the upper side (left side in the figure) of the hub 2 as the suction side and the shaft 12 side as the discharge side, and the shaft 12 is thick. When rotating in the direction of the arrow, the fluid is attracted from the range of approximately 0 to 180 degrees as shown by the dashed arrow, and the fluid that has passed through the curved vanes 1 moves intensively to the left in the figure around the shaft 12. To be made. Therefore, the ship is propelled to the left in the figure.

EFFECTS OF THE INVENTION The present invention is capable of moving fluid in a direction orthogonal to the tangent to the blade surface on all blade surfaces by the above-described configuration operation, and therefore, as a fan for blowing air or a pump for moving fluid,
The fluid can be dispersed or stirred in a wide angle range of approximately 0 to 180 degrees, and as a propeller or screw for propulsion, the fluid is sucked from a wide angle range of approximately 0 to 180 degrees and passes through curved blades to concentrate. Since it is postponed to, the powerful and effective propulsion force can be obtained.

Further, the fluid can be concentrated in front of the hub by disposing the guide plate and the fluid scraper on the curved blade.

[Brief description of drawings]

1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a perspective view of a main part for explaining an angle change of a curved blade in FIG. 1 in a shaft direction, and FIG. FIG. 4 is a perspective view showing a second embodiment of the present invention, FIG. 4 is a perspective view showing a third embodiment of the present invention, and FIG. 5 is for explaining the operation of the curved blade for fluid movement according to the present invention. 6 is a plan view of the same as above, FIG. 7 is a side view of the curved blade for fluid movement shown in FIG. 5, and FIG. 8 is a curved blade for fluid movement according to the present invention. It is a side view which shows the case where is applied to the screw for ships. In the figure, 1 ... Curved blade 2 ... Hub 3 ... Mounting surface 4 ... First inclined surface 5 ... Second inclined surface 6 ... Third inclined surface 7 ... Fourth inclined surface 8,8,8 , 8 …… Guide plate, 9 …… Fluid scraper 10 …… Power source 12 …… Shaft 1A …… Curved surface 1B …… Auxiliary curved vane 1b …… Insertion hole 1F, 1G …… Fluid cut surface L …… Shaft direction M: Radial direction

Claims (2)

[Claims] 1. A power source for providing a rotational driving force, a shaft rotationally driven by the power source, a hub fixed around the shaft, and a plurality of hubs arranged at substantially equal angles on the outer peripheral surface of the hub. The blade surface of each of the blades is substantially inverted L-shaped, that is,
The hub is configured to be curved horizontally in the radial direction from the start end in order and curved in the vicinity of the end end so as to be parallel to the shaft, forming a substantially hemispherical fluid scraping surface for the blade as a whole, and an inclination angle with respect to the rotation direction And a blade structure for fluid movement, characterized in that the blade structure is formed so as to be accompanied by a change in angle in the radial direction. 2. Each of the blades is provided with a fluid oyster at a portion which is a rear end side and an outer side surface with respect to a rotation direction, and
A guide plate for guiding the moving direction of the fluid is disposed between the inclined surfaces and at a predetermined position on the curved surface.
A vane structure for moving fluid as described.