WO2016182372A1

WO2016182372A1 - Apparatus for adjusting angle of blade

Info

Publication number: WO2016182372A1
Application number: PCT/KR2016/005029
Authority: WO
Inventors: 김철수
Original assignee: 김철수; (주)에너제닉
Priority date: 2015-05-13
Filing date: 2016-05-12
Publication date: 2016-11-17

Abstract

The present invention relates to an apparatus for adjusting the angle of a blade. In the present invention, a linearly moving object performs a linear motion by means of a driving force provided by a power source, and an angle adjusting rod (34) connected to the linearly moving object performs a linear motion by means of the linearly moving object and simultaneously performs a rotary motion with an interlocking pin (35) thereof guided by a pin slot (17) formed in the rear end (16) of a driving shaft (15). The rotary motion of the angle adjusting rod (34) is transmitted to a rotary bar (37) that performs a linear motion relative to the angle adjusting rod (34) in the longitudinal direction of the angle adjusting rod (34) and performs a rotary motion together with the angle adjusting rod (34), and a first gear (37') installed on an opposite end portion of the rotary bar (37) rotates while being engaged with a second gear (46) installed on the blade shaft (42) of a blade (41) such that the blade (41) performs a rotary motion. As described above, according to the present invention, the installation angle of the blade (41), which guides the flow of fluid, may be rapidly and accurately adjusted depending on situations.

Description

Blade angle adjuster

The present invention relates to a blade angle control device, and more particularly to a blade angle control device that can adjust the angle with respect to the fluid flow direction of the blade associated with the flow of the fluid.

For example, tubular turbines are used in power generation with flows of fluids such as water. The tubular turbine is a type mainly used for small power generation. The tubular turbine has a plurality of blades to produce rotation of the shaft as the water flows. However, in the case of using a fixed blade in a tubular turbine, for example, a large difference in efficiency occurs due to a change in flow rate. Therefore, it is necessary to maximize the rotational efficiency of the shaft by adjusting the angle of the blade according to the flow rate of the fluid.

In addition, the blades are used to create a fluid flow or to generate a rotational force by the fluid flow, and the efficiency of the device when the installation angle of the blade is changed according to the flow conditions of the fluid. Can greatly increase.

Therefore, it has been suggested to vary the angle of the blade in various forms as in the following prior document.

In the following prior art document, a link mechanism connected to each blade is used to adjust several blades simultaneously using mainly a link. However, assembling the link mechanism in a narrow space is very difficult, and there is a problem that power transmission is not accurate.

An object of the present invention is to solve the conventional problems as described above, it is possible to vary the installation angle of the blades associated with the flow of the fluid according to the flow conditions of the fluid.

According to a feature of the present invention for achieving the object as described above, the present invention in the blade angle adjusting device for adjusting the installation angle of the blade for guiding the flow of the fluid, to provide a driving force for adjusting the angle of the blade A driving source, a linear moving body for providing a linear movement of the angle adjusting rod by making the driving force of the driving source into a linear movement, and protrudes on at least one side of an outer surface of one end of the angle adjusting rod to guide along the pin slot of the driving shaft on which the blade is installed. While interlocking pins to create a rotation of the angle adjusting rod, the rotation bar relative to the angle adjusting rod in the longitudinal direction of the angle adjusting rod and rotated integrally with the angle adjusting rod, and the rotational force of the rotating bar of the blade of the blade And first and second gears for transmitting to the shaft.

The first gear is installed at one end of the rotary bar, and the second gear is provided on the blade shaft and is a bevel gear engaged with each other.

The rotating bar is inserted into the bar through-hole having a cross-sectional shape in the cross-sectional shape of the polygonal cross-section and the same as the cross-sectional shape of the rotating bar in the longitudinal direction of the angle adjusting rod.

The pinslot extends helically.

The linear movable body is provided with a first sealing plate on which a driving block for converting rotational force of the driving source into linear motion is installed, and a second bar facing the first sealing plate at a predetermined interval and rotatably rotating and integrally linearly moving. The contact plate is configured to include a connecting rod for fixedly connecting the first contact plate and the second contact plate with each other.

The drive block is rotatably provided with a rotating shaft provided by reducing the rotational force of the motor as the driving source through the reducer so that the drive block linearly moves.

The linear moving body is a first sealing plate which receives a linear movement of the drive source, a second sealing plate which faces the first sealing plate at a predetermined interval and the rotating bar is rotatably and integrally installed linearly, the first sealing plate and the first plate. It is configured to include a connecting rod connecting the two sealing plates fixed to each other.

The driving source is a linear actuator that provides a linear motion of the rod connected to the first contact plate or a linear motion mechanism that provides the driving force of the operator to the first contact plate in a linear motion.

In the blade angle adjustment device according to the present invention can obtain the following effects.

In the present invention, the installation angle of the blade operating in the fluid can be adjusted in real time if necessary through an external drive source and a simple structure. Therefore, since the angle of the blade is adjusted in response to a change in the environment in which the blade is used, there is an effect of maximizing the efficiency of the work provided using the blade.

In addition, in the present invention, it is possible to rotate by a pin slot formed at the rear end of the drive shaft at the same time as the linear motion by the driving force of the drive source of the angle adjustment rod, the rotational force is installed so that the linear movement in the bar through hole of the angle adjustment rod is rotated together Since it is transmitted directly to the bar, the power transmission can be more accurate and lossless, so that the angle adjustment of the blade is more accurate and efficient.

In addition, in the present invention, it is possible to install the blade in a state in which the second gear is fixed to each blade shaft in the hub, the first gear can be assembled so as to engage at a time there is an effect that the assembly work as a whole is easy.

In addition, since the power transmission to the plurality of blades is transmitted to the plurality of second gears through one first gear, the power transmission characteristic is relatively accurate.

1 is a perspective view showing that the blade angle adjusting device according to the present invention is applied to the tubular aberration.

Figure 2 is a perspective view showing an important part of the embodiment of the present invention shown in FIG.

Figure 3 is a detailed perspective view showing in detail the configuration of the angle adjustment unit of the embodiment of the present invention shown in FIG.

Figure 4 is a perspective view of the rear end is omitted in Figure 2.

5 is a perspective view showing a state in which the hub is removed in FIG.

6 is a perspective view showing a state in which the blade is removed in FIG.

7 is a perspective view showing another embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing an embodiment of the present invention, if it is determined that the detailed description of the related known configuration or function is to interfere with the understanding of the embodiment of the present invention, the detailed description thereof is omitted.

In addition, in explaining the component of the Example of this invention, terms, such as 1st, 2nd, A, B, (a), (b), can be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but between components It will be understood that may be "connected", "coupled" or "connected".

As shown in the figures, the illustrated embodiment is applied to tubular aberration for power generation. Adjacent to the generator 10, a flow path tube 11 is provided. The blade unit 40 to be described below is installed in the flow pipe 11. The flow pipe 11 has a suction part 11 ′ at one end thereof and is connected to the suction part 11 ′ to have a reducer part 12. The reducer portion 12 is provided with a blade portion 40 to be described below. The reducer portion 12 is configured to narrow the flow cross section in the flow direction.

There is a discharge portion 13 connected to the reducer portion 12 to bend the flow path by a predetermined angle, and there is a discharge portion 14 connected to the discharge portion 13. The outlet 14 has a larger flow cross-sectional area toward downstream.

The drive shaft 15 is installed through the suction part 11 'and the discharge part 13 of the flow path pipe 11. The tip of the drive shaft 15 is connected to the generator 10 to generate power in the generator 10 by the rotational force of the drive shaft 15. The rear end 16 of the drive shaft 15 extends to the outside through the discharge portion 13 is connected to the angle adjuster 30 to be described below. The rear end 16 of the drive shaft 15 is made cylindrical.

There is a pin slot 17 to open to both outer surfaces of one end of the rear end 16. The pin slot 17 is made approximately in a spiral shape. In the illustrated figures, the pin slot 17 is visible only on one outer surface of the rear end 16, but the pin slot 17 may be formed on the opposite outer surface. The pin slot 17 allows the angle adjusting rod 34 to be rotated while the interlocking pin 35 to be described below is guided. Reference numeral 19 denotes an axis seal for preventing leakage at a portion where the rear end 16 penetrates the discharge portion 13.

In the present invention, the driving force for adjusting the installation angle of the blade 41 is provided by the driving source. In this embodiment, a motor 20 that rotates in response to an electrical signal is employed as the drive source. The reducer 21 is installed on the output shaft of the motor 20. The reducer 21 increases torque instead of reducing the rotational speed of the output shaft of the motor 20. On the output side of the reducer 21 there is a rotating shaft 22. The rotating shaft 22 is rotated by the driving force transmitted by being decelerated by the reducer 21.

Next, the configuration of the angle adjustment unit 30 will be described. The first sealing plate 31 and the second sealing plate 32 are installed to face each other at a predetermined distance, which connects the connecting rods 33 between the first sealing plate 31 and the second sealing plate 32. Because. In this embodiment, the first and

second sealing plates

31 and 32 have a disc shape. However, the first sealing plate 31 and the second sealing plate 32 are not necessarily circular. The linear moving body including the first sealing plate 31, the second sealing plate 32, and the connecting rod 33 may integrally move linearly in the longitudinal direction of the driving shaft 15.

An angle adjusting rod 34 is rotatably installed on the second sealing plate 32, and is supported on the second sealing plate 32 by the first bearing 34 ′. The angle adjusting rod 34 may be linearly moved by the movement of the second sealing plate 32 and may be separately rotated with respect to the first bearing 34 '.

The angle adjusting rod 34, as can be seen in Figure 4, the interlocking pin 35 is installed. At least one end of the interlocking pin 35 protrudes to the outer surface of the angle adjusting rod 34. Of course, both ends of the interlocking pin 35 may partially protrude to both outer surfaces of the angle adjusting rod 34. The interlocking pin 35 is guided along the pin slot 17 formed at the rear end 16 of the drive shaft 15.

The angle adjusting rod 34 also has a bar through-hole 36 is formed in the longitudinal direction therein. The bar through-hole portion 36 can be seen in Figure 3, is formed to penetrate the angle adjusting rod 34 in the longitudinal direction. The bar through hole 36 is not circular in cross section. In this embodiment, the cross section of the bar through hole 36 is rectangular. This is to correspond to the cross-sectional shape of the rotation bar 37 to be described below, and to allow the rotation bar 37 and the angle adjusting rod 34 to rotate together. The cross section of the bar through hole 36 may be polygonal. Of course, the cross section of the rotation bar 37 may also be the same polygon accordingly.

There is a rotation bar 37 so that one end is located in the bar through-hole 36 of the angle adjustment bar (34). The rotation bar 37 is located through the interior of the rear end 16 of the drive shaft 15. The rotation bar 37 is rotated by the rotation of the angle adjusting rod 34 to adjust the installation angle of the blade 41 to be described below.

As shown in FIGS. 5 and 6, a first gear 37 ′ is installed at an opposite end of the rotating bar 37 into the bar through hole 36. The first gear 37 ′ rotates by the rotation of the rotation bar 37 and meshes with the second gear 46 to be described below to transmit power.

On the other hand, the first block 31 has a drive block 39 for the linear motion of the angle adjusting rod (34). The drive block 39 is interlocked with the rotation shaft 22. The drive block 39 has at least one end open therein and a through-hole formed with a threaded portion at an inner surface thereof. The rotary shaft 22 is installed in the through hole. The outer surface of the rotary shaft 22 has a screw portion corresponding to the screw portion of the drive block 39 to change the rotation of the rotary shaft 22 to a linear movement of the drive block 39. As such, the linear motion body performs linear motion by interlocking the rotating shaft 22 and the driving block 39.

Next, the configuration of the blade unit 40 provided in the drive shaft 15 will be described. The blade portion 40 has a plurality of blades 41, the blade 41 is guided by the fluid flowing in the flow path tube 11 to rotate to drive the drive shaft 15. The blade 41 is mounted to the hub 41 ′ installed on the drive shaft 15.

The blade 41 is provided on the outer surface of the hub 41 ', and the inner space of the hub 41' has a configuration for adjusting the installation angle of the blade 41. The center for angle adjustment of the blade 41 is the blade shaft 42. The blade shaft 42 is rotatably installed in the hub 41 ', and the second bearing 43 and the third bearing 44 fixed to the hub 41' are fixed to the blade shaft 42. Support both ends in the longitudinal direction rotatably.

A gear adjustment hole 45 is installed between the second bearing 43 and the third bearing 44. The gear adjustment mechanism 45 is to be rotated integrally with the blade shaft (42). At one side of the gear adjustment mechanism 45 is a second gear 46 coupled to the first gear 37 'receives power. The second gear 46 is formed only in a portion of the gear adjustment port 45. This is because the blade 41 does not need to rotate 360 degrees, and only needs to rotate to a certain extent. For reference, bevel gears may be used for the first gear 37 ′ and the second gear 46.

On the other hand, Figure 7 shows another embodiment of the present invention. According to this, the linear actuator 120 is used here instead of the motor 20 as a drive source. The rod 122 entering and exiting the cylinder 121 is reciprocated by the driving of the linear actuator 120 to linearly move the linear moving body. The tip of the rod 122 is connected to the first sealing plate 31 by a connector 122 ′.

Although not shown in the drawings, the linear movable body may be directly moved by the worker. That is, the driving mechanism for linearly moving the linear moving body can be adjusted directly by the operator to adjust the angle of the blade 41.

Hereinafter, the blade angle adjusting device according to the present invention having the configuration as described above will be used in detail.

In the present invention, the installation angle of the blade 41 is adjusted by driving the motor 20 as the driving source. When a necessity to adjust the installation angle of the blade 41 due to a change in the quantity, etc., an electrical signal is transmitted to the motor 20.

The driving force of the motor 20 is transmitted to the rotary shaft 22 through the reducer 21. Rotation in the direction of one arrow (A, B) of the rotary shaft 22 is changed to the linear movement of the drive block 39, so that the linear movable body, that is, the first sealing plate 31, the connecting rod 33 and the second sealing plate ( 32) to make a linear movement.

For example, when the second sealing plate 32 moves in the direction of the drive shaft 15, the angle adjusting rod 34 integrally moving with the second sealing plate 32 moves in the corresponding direction. In the process, the interlocking pin 35 installed on the angle adjusting rod 34 is guided in the direction of arrow B along the pin slot 17 of the rear end 16. When the interlocking pin 35 is guided along the pin slot 17 as described above, the angle adjusting rod 34 rotates while performing a linear movement. That is, the angle adjusting rod 34 is rotated in the direction indicated by the arrow B with respect to the rotating shaft 22.

When the interlocking pin 35 moves along the pin slot 17, the angle adjusting rod 34 rotates, and one end is inserted into the bar through hole 36 of the angle adjusting rod 34. The rotating bar 37 rotates in the same direction. When the rotation bar 37 rotates, the first gear 37 'installed at the other end of the rotation bar 37 rotates to drive the meshed second gear 46 to drive the gear adjustment mechanism 45. Rotates so that the blade shaft 42 rotates.

Rotation of the blade shaft 42 results in rotation of the blade 41. That is, the blade 41 is rotated a predetermined angle on the outer surface of the hub 41 'while the installation angle is adjusted. Since there is a second gear 46 for each of the blades 41, the entire blade 41 may rotate by the same angle due to the rotation of the first gear 37 ′ by the rotation of the rotation bar 37. It becomes possible.

For reference, the interlocking pin 35 is initially located at an intermediate position of the pin slot 17, and then moves along the pin slot 17 in the direction of arrow A or B of FIG. 3, wherein the motor 20 The rotation of the angle adjusting rod 34 is made while moving in the A or B direction according to the rotation direction of the).

Although not described, the controller checks the rotational direction of the motor and counts the number of rotations in the state where the interlocking pin 35 is in the intermediate position of the pin slot 17. It will make the rotation degree of the set value. In this way, the angle of the blade 41 can be set to a desired value.

By varying the installation angle of the blade 41 according to the flow rate passing through the flow path tube 11 as described above, the rotation of the drive shaft 15 is more efficiently performed and the power generation efficiency of the generator 10 is increased. Can be.

Of course, increasing the power generation efficiency of the generator 10 is a case where the present invention is applied to the tubular aberration as in the illustrated embodiment, and the present invention can be used in various devices with the blade 41.

Meanwhile, as shown in FIG. 7, since the linear movement of the linear moving body can be made as a driving source replacing the motor 20, the driving source can be used in various ways.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims

In the blade angle adjusting device for adjusting the installation angle of the blade for guiding the flow of fluid,

A driving source providing a driving force for adjusting the angle of the blade;

A linear moving body which makes the driving force of the driving source into a linear motion and provides a linear motion of the angle adjusting rod;

An interlocking pin which protrudes on at least one side of an outer surface of one end of the angle adjusting rod and guides along a pin slot of a drive shaft on which the blade is installed, thereby creating rotation of the angle adjusting rod;

A rotation bar which is moved relative to the angle adjusting rod in the longitudinal direction of the angle adjusting rod and rotates integrally with the angle adjusting rod;

Blade angle adjusting device comprising a first and second gear for transmitting the rotational force of the rotating bar to the blade shaft of the blade.
The blade angle adjusting device of claim 1, wherein the first gear is a bevel gear installed at one end of the rotation bar and the second gear is provided on the blade shaft and meshes with each other.
The blade angle adjustment device of claim 2, wherein the rotation bar has a polygonal cross section and is inserted into a bar through-hole having a cross-sectional shape, such as a cross-sectional shape of the rotation bar, in a longitudinal direction of the angle adjusting rod.
4. The blade angle adjusting device of claim 3, wherein the pin slot extends in a spiral shape.
According to any one of claims 1 to 4, wherein the linear moving body is a first bar provided with a drive block for converting the rotational force of the drive source into a linear motion, the first bar and the rotation bar facing the first bar at a predetermined interval The second angle plate is rotatable and integrally installed in a linear motion, blade angle adjustment device comprising a connecting rod for fixing the first and second plates to be fixed to each other.
The blade angle adjustment device of claim 5, wherein a rotation shaft provided by rotating the motor as the driving source is decelerated through the reducer is rotatably installed on the driving block so that the driving block moves linearly.
The linear movement member according to any one of claims 1 to 4, wherein the linear movable member faces the first sliding plate receiving the linear motion of the driving source, the first rolling plate at a predetermined interval, and the rotation bar is rotatable and integrally linearly moves. The second angle plate is installed so as to, the blade angle adjustment device comprising a connecting rod for fixing the first plate and the second plate fixed to each other.
8. The blade angle adjusting device according to claim 7, wherein the driving source is a linear actuator providing linear motion of a rod connected to the first sliding plate, or a linear moving mechanism providing driving force of the operator to the first sliding plate in linear motion.