KR101888527B1 - Hydraulic actuator device and its assembling method - Google Patents

Abstract

A hydraulic apparatus according to the present invention comprises: an inlet hole into which gas flows; a discharge hole through which the gas is discharged; a frame having a first hole and a second hole formed therein; an actuator unit coupled to the first hole and controlling a flow of the gas; and a seat unit coupled to the second hole, for assisting movement of the actuator unit. Besides, a method of assembling the hydraulic apparatus according to the present invention includes following steps of: which the actuator unit for controlling the flow of the gas is installed in an upper opening hole in the frame formed with the inlet hole through which the gas flows, the discharge hole through which the gas is discharged, and upper and lower opening holes facing each other; and which the seat unit for assisting movement of the actuator unit is installed in the lower opening hole.

Description

[0001] Hydraulic actuator device and its assembling method [0002]

The present invention relates to an apparatus and a method for assembling a hydraulic actuator, and more particularly, to an apparatus and a method for assembling a hydraulic actuator, And more particularly, to a hydraulic actuator device and a method of assembling the hydraulic actuator device.

Hydraulic devices having actuators are used in various industrial fields.

BACKGROUND OF THE INVENTION [0002] In a combustion system of a turbine driven by fuel, especially gas, various hydraulic devices are introduced to control the flow associated with gas flow.

A diagram of a conventional hydraulic system is shown in Fig. At this time, a common hydraulic device includes a stem and a seat for piston motion.

Due to the characteristics of the operating environment, the above stems are very large and heavy, and the seat is installed to protect the internal structure from the friction generated by the piston motion of the stem.

However, in the prior art, as shown in FIG. 1, since the stem and the seat are formed so as to be integrated, it is only necessary to install the seat first and to install the stem in accordance with the seat.

Figure 1 is a representative drawing of U.S. Patent Publication No. 20030070711, which is a prior art document of the present invention.

This results in a contradictory phenomenon in which the seat for assisting the movement of the stem is installed first, and thus the stem is fitted to the shaft of the seat.

In addition, although the seat is smaller in size than the stem and is light in weight, the stem is adjusted in a state in which the seat is fixed in spite of the simple installation, so that it takes a long time to install the seat, resulting in economical damage.

U.S. Published Patent Application 20030070711

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional art described above, and it is an object of the present invention to provide a hydraulic apparatus in which a stem and a seat are differentiated.

And also to provide a method by which a user can easily disassemble or assemble the hydraulic device.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a hydraulic device including: an inlet hole through which gas flows; a discharge hole through which the gas is discharged; a frame having a first hole and a second hole, An actuator unit coupled to the first hole and including a stem moving up and down, and a seat unit coupled to the second hole, wherein the seat unit includes: A second guide part provided inside the second hole for assisting a position where the seat part is provided and a second cover part coupled to a lower end of the frame in which the second hole is formed; Wherein the second guide portion includes a communication hole communicated with the inlet hole and the discharge hole on the inside of the second guide portion to allow gas flowing through the inlet hole to flow to the discharge hole, , The stem portion controls the amount of the gas flowing into the discharge hole via the communication hole due to the difference in distance from the seat portion due to the upward and downward movement, And can be discharged to the outside of the second cover portion.
In this case, the actuator unit may include a first guide portion that is detachably coupled to the first hole and maintains a constant axis of the stem portion.
A first spring portion that is coupled to the inside of the first cover portion to provide a restoring force, and a second spring portion that is positioned at the other end of the first spring portion, And a piston portion that can transmit the gas.
Or a manifold installed in the frame, in which a channel through which the fluid flows to apply pressure to the piston portion by the fluid is formed.
And the actuator unit may include a first seal portion provided so that fluid does not flow into the frame.
Or the seat unit may include a second seal part provided so that the gas does not leak out of the frame.
According to another aspect of the present invention, there is provided a method of assembling a hydraulic device, the method comprising: forming a frame having an inlet hole through which gas is introduced and a hole through which the gas is discharged, A step of installing an actuator unit including a stem portion that reciprocates a predetermined distance in the upper opening hole, a seat portion provided opposite to the stem portion, and a seat portion provided inside the lower opening hole and communicating with the inlet hole and the discharge hole And installing a seat unit including a second guide portion having a communication hole in the lower opening hole so as to coincide with an axis of the actuator unit installed in the upper opening hole.
At this time, the step of installing the actuator unit
A step of coupling the stem portion and the first guide portion that keeps the axis of the stem portion constant, and the step of installing the first guide portion so as to be in close contact with the upper opening hole.
Wherein the step of installing the seat unit comprises the steps of: coupling the seat portion with a second guide portion for assisting a position where the seat portion is installed; mounting the second guide portion with the seat portion on the lower opening hole , Adjusting the position of the seat portion to fit the axis of the actuator unit, and fixing the actuator unit and the seat unit by coupling the second cover portion to the lower end of the frame.

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In order to solve the above-described problems, the hydraulic apparatus of the present invention and its assembling method have the following effects.

First, the hydraulic device can be assembled or disassembled very quickly and economically than in the conventional case.

Second, it is possible to easily perform replacement and maintenance of a seat unit requiring regular replacement as an accessory and a hydraulic device requiring maintenance.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram of a conventional hydraulic device related to the present invention.
2 is a cross-sectional view of the hydraulic apparatus of the present invention.
3 is a flowchart of assembling the hydraulic device of the present invention.
4 is a view for assembling the actuator unit of the present invention.
5 is a view for assembling the sheet unit of the present invention.
6 is a view showing the actuator unit of the present invention mounted on a frame.
7 is a view showing a seat unit of the present invention installed on a frame.
And Fig. 8 is a view for aligning the axes of the actuator units by fixing the seat unit of the present invention to the frame.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

In describing the embodiments of the present invention, it is to be noted that components having the same function are denoted by the same names and numerals, but are substantially not identical to those of the prior art.

Furthermore, the terms used in the embodiments of the present invention are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Furthermore, in the embodiments of the present invention, terms such as " comprises " or " having ", etc. are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, Steps, operations, elements, components, or combinations of elements, numbers, steps, operations, components, parts, or combinations thereof.

The hydraulic apparatus of the present invention will be described with reference to Fig. 2 is a cross-sectional view of the hydraulic device of the present invention.

The hydraulic device of the present invention includes a frame (100), an actuator unit (200) and a seat unit (300).

The frame 100 is formed with an inlet hole 120, a discharge hole 140, a first hole 160, and a second hole 180. The inlet hole 120 and the outlet hole 140 refer to a space through which fuel gas flows and flows.

The first hole 160 and the second hole 180 are openings in which the actuator unit 200 and the seat unit 300 can be coupled to each other.

The hydraulic device of the present invention has a structure in which the actuator unit 200 and the seat unit 300 are connected to the first hole 160 and the second hole 180 in which the actuator unit and the seat unit 300 are opened, They can be separated and combined, which is very effective in disassembly and assembly.

The first hole 160 to which the actuator unit 200 is coupled is formed on the upper portion of the frame 100 and the second hole 180 to which the seat unit 300 is coupled is formed on the lower portion of the frame 100 So that the first hole 160 and the second hole 180 are opposed to each other.

However, the above positions take into account the size, weight, space utilization, and natural movement of the actuator unit 200, and are not limited to this position.

The actuator unit 200 is coupled to the first hole 160 and reciprocates a certain distance through the pressure of the fluid, that is, the hydraulic pressure, and controls the flow of the gas.

The seat unit 300 is coupled to the second hole 180 and serves to assist reciprocating movement of the actuator unit 200 over a certain distance.

That is, the seat unit 300 may be fixedly installed at a predetermined position of the frame 100, and the actuator unit 200 may reciprocate and adjust the distance between the seat unit 300 and the gas supply amount .

In addition, the actuator unit 200 is very large in size due to its characteristics used in the turbine, and can be subjected to shock and friction damage to the structure of the hydraulic device including the frame 100 during reciprocating motion.

At this time, the seat unit 300 may mean an accessory for alleviating the above-mentioned damage, and the seat unit 300 is required to be periodically replaced or the like due to the characteristics of the accessories.

However, since replacement of the seat unit 300 or maintenance of the actuator unit 200 stops all of the power generation equipment, it is very important from the viewpoint of power generation efficiency to replace the power unit.

Since the actuator unit 200 and the seat unit 300 are separated from each other, the hydraulic device according to the present invention can be disassembled and assembled easily and quickly, thereby providing a large economic effect as compared with the conventional hydraulic device.

At this time, the actuator unit 200 includes the first guide part 220, the stem part 210, the piston part 250, the first spring part 240 and the first cover part 260 .

The stem portion 210 may move a predetermined distance in the longitudinal direction to control the flow of the gas. That is, the stem 210 reciprocates and may affect the flow of the gas.

At this time, the stem portion 210 may be formed in a special shape such as one end tapered or a certain angle so as to control the flow characteristics of the gas (for example, linear movement).

Since the stem portion 210 affects the flow of the gas, its axis must be maintained constant between the reciprocating motions.

The first guide part 220 is detachably coupled to the first hole 160 and keeps the axis of the stem part 210 constant.

The stem of the stem portion 210 is adjusted to the first guide portion 220 before the stem portion 210 is directly coupled to the frame 100 serving as the main body, , The user can easily mount the actuator unit 200 on the frame 100. [

At this time, it is preferable that the stem portion 210 is formed to penetrate a part of the first guide portion 220. However, the formation of the stem portion 210 or the coupling relation with the first guide portion 220 is not limited to the above configuration.

For example, when a pupil is formed in a part of the stem portion 210 and a part of the first guide portion 220 is positioned in the pupil formed in the stem portion 210 when the stem portion 210 reciprocates .

Also, the first guide part 220 may prevent the gas from flowing into the piston part 250, which will be described later. That is, there is a need to prevent gas flowing in the frame 100 from mixing with the fluid, and the first guide part 220 can serve as the above.

A seal may be provided on a part of a boundary between the first guide part 220 and the frame 100 in the process of installing the first guide part 220 in close contact with the frame 100. [

The seal may serve to seal to prevent gas from mixing with the fluid.

The first spring portion 240 is coupled to the inside of the first cover portion 260, which will be described later, to provide a restoring force.

The piston part 250 is located at the other end of the first spring part 240 and transmits the restoring force to the stem part 210 or transmits the pressure of the fluid to the first spring part 240 .

The first cover portion 260 is formed so as to surround the first spring portion 240 and the piston portion 250 so that the first spring portion 240 and the piston portion 250 can function at a predetermined position.

2, one end portion of the first spring portion 240 is coupled to the inside of the first cover portion 260 and the piston portion 250 is coupled to the other end portion of the first spring portion 240 .

The fluid may flow into the space formed by the piston portion 250 and the first cover portion 260 so that the fluid moves the piston portion 250.

When the fluid flows, the piston unit 250 moves upward and the stem unit 210 connected to the piston unit 250 can move in the same direction as the piston unit 250.

When the inflow fluid is discharged, the piston unit 250 moves downward due to the restoring force of the first spring unit 240 coupled with the piston unit 250. The stem portion 210 connected to the piston portion 250 also moves downward.

By the inflow and outflow of the fluid as described above, the piston portion 250 and the stem portion 210 can reciprocate, and consequently, the flow of the gas is controlled.

At this time, the actuator unit 200 may include a manifold 230.

The manifold 230 is installed in the frame 100 and may be formed with a channel through which the fluid flows to apply the pressure of the fluid to the piston 250.

The manifold 230 may be interlocked with the position sensor for measuring the position of the piston 250 or the stem 210 to determine whether the fluid is flowing or not.

Accordingly, the inflow amount of the fluid can be determined by the manifold 230, the position of the piston unit 250 and the stem unit 210 can be adjusted, and the distance between the stem unit 210 and the seat unit 300 can be adjusted The flow amount of the gas can be determined.

The actuator unit 200 may also include a first seal portion.

The first seal portion may be provided at the boundary between the structures of the actuator unit 200 in the coupling relationship. At this time, the first seal portion may function to seal the fluid that operates the actuator unit 200 from flowing into the frame 100 through which the gas flows.

The sheet unit 300 may include a sheet portion 320, a second guide portion 340, and a second seal portion.

The seat portion 320 may be fixed to be opposed to the actuator unit 200. Therefore, the seat portion 320 may have a difference in distance from the actuator unit 200 due to the reciprocating motion of the actuator unit 200. And the flow of the gas portion can be controlled by the distance difference.

The second guide portion 340 is coupled to the second hole 180 and is installed inside the frame 100 to assist a position where the seat portion 320 is installed.

The user can easily attach the seat portion 320 to the frame 100 after the seat portion 320 is coupled to the second guide portion 340 and then the second guide portion 340 is coupled to the frame 100 before the seat portion 320 is directly coupled to the frame 100 The seat unit 300 can be mounted on the frame 100. [

At this time, the second guide portion 340 may include a communication hole to communicate the inlet hole 120 and the outlet hole 140 formed in the frame 100.

After the above-described seat unit 300 is coupled to the frame 100, the position coupled to the frame 100 is fixed

The seat unit 300 may include a second seal portion that prevents the gas from leaking to the outside of the frame 100.

The second seal part is preferably formed on the interface between the second guide part 340 and the frame 100. However, the position of the second seal part is not limited as long as it can perform the above-mentioned functions.

A method of assembling the hydraulic device of the present invention will be described with reference to Figs. 3 to 8. Fig. 4 is a view for assembling the actuator unit 200 of the present invention, Fig. 5 is a view for assembling the seat unit 300 of the present invention, Fig. 6 Fig. 7 is a view showing the seat unit 300 of the present invention installed on the frame 100. Fig. 7 is a view showing the actuator unit 200 according to the present invention mounted on the frame 100. Fig. And Fig. 8 is a view for aligning the axes of the actuator unit 200 by fixing the seat unit 300 of the present invention to the frame 100. Fig.

The method of assembling the hydraulic apparatus described below may be a method of assembling the hydraulic apparatus described above. Therefore, when the terms of the two inventions are the same, it can be understood that the constitution, the purpose, the effect, and the coupling relationship are also the same or similar.

The method of assembling a hydraulic device according to the present invention is characterized in that an inflow hole 120 through which a gas is introduced and a discharge hole 140 through which a gas is discharged are formed and the upper and lower portions 160 and 180, The actuator unit 200 for controlling the flow of the gas is provided in the upper opening hole 160 and the seat unit 300 for assisting the movement of the actuator unit 200 is inserted into the lower opening hole 180 ).

As described above, since the actuator unit 200 and the seat unit 300 can be separated from each other, the user can quickly disassemble the actuator unit 200, replace or repair the actuator unit 200, and assemble the hydraulic unit.

The step of installing the actuator unit 200 may include a step of coupling the stem part 210 and the first guide part 220 and a step of attaching the first guide part 220 to the upper opening hole 160 .

That is, the actuator unit 200 is not assembled to the frame 100 separately, but is assembled before the first guide unit 220 is coupled to the frame 100, (220) may be coupled to the frame (100). This has the effect that the user can assemble quickly.

Specifically, the actuator unit 200 may further include a first cover portion 260, a first spring portion 240, a piston portion 250, and a manifold 230.

After the first spring portion 240, the piston portion 250 and the stem portion 210 are coupled to the first cover portion 260 in order, the channel formed in the manifold 230 and the first cover portion 260 are connected So that the fluid flows into the first cover portion 260.

The first guide part 220 may be installed in the upper opening hole 160 of the frame 100 after the stem part 210 is coupled to the first guide part 220. [

At this time, the actuator unit 200 can be fixed to the frame 100 by screwing the manifold 230 to the frame 100.

It should be noted, however, that the mounting step of the actuator unit 200 is not limited to the above steps.

The step of installing the seat unit 300 includes the steps of coupling the seat portion 320 and the second guide portion 340 to each other and connecting the second guide portion 340 coupled with the seat portion 320 to the lower opening hole 180 Adjusting the position of the seat portion 320 to match the axis of the actuator unit 200 and connecting the second cover portion 360 to the lower end of the frame 100 to move the actuator unit 200 And the seat unit 300, as shown in FIG.

Specifically, the second guide portion 340 may be installed inside the lower opening hole 180 after the seat portion 320 is coupled to the second guide portion 340. The operator can align the position of the seat portion 320 with the axis of the actuator unit 200 by adjusting the second guide portion 340 in a state in which the second guide portion 340 is installed.
That is, as can be seen from Fig. 7, the seat unit can replace the seat unit with the actuator unit engaged with the upper opening hole.

The worker can fix the position of the seat unit 300 by installing the disk spring at the lower end of the second guide portion 340 after aligning with the axis of the actuator unit 200. [ Finally, the second cover portion 360 may be coupled to the lower end of the frame 100 through a fastener to assemble the hydraulic device.

Since the actuator unit 200 and the seat unit 300 can be formed separately from each other as described above, the actuator unit 200 and the seat unit 300 are very effective in replacement and maintenance.

As described above, a part of the seat unit 300 may be an accessory, and regular replacement is required. In this case, conventionally, the actuator unit 200 and the seat unit 300 have to be disassembled from the frame 100 together.

At this time, the actuator unit 200 is very large and heavy, and it takes a lot of time and cost to work.

However, according to the present invention, since only the seat unit 300 is disassembled from the frame 100 to replace a part of the seat unit 300, the seat unit 300 can be installed again along the axis of the actuator unit 200,

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: frame
120: inlet hole 140: outlet hole
160: first hole, upper opening hole 180: second hole, lower opening hole
200: actuator unit
210: stem part 220: first guide part
230: manifold 240: first spring portion
250: piston part 260: first cover part
300: Seat unit
320: seat portion 340: second guide portion
360: second cover portion

Claims (11)

An inlet hole through which gas flows, a discharge hole through which the gas is discharged, a first hole and a second hole respectively formed in upper and lower portions, respectively;
An actuator unit coupled to the first hole and including a stem moving up and down; And
A seat unit coupled to the second hole; / RTI >
The seat unit includes:
A seat portion opposed to the stem portion;
A second guide portion provided inside the second hole and supporting a position where the seat portion is installed; And
A second cover part coupled to a lower end of the frame in which the second hole is formed; Lt; / RTI >
The second guide portion
A communication hole communicated with the inlet hole and the outlet hole on the inner side of the second guide portion to allow gas flowing through the inlet hole to flow to the outlet hole; Including,
Wherein the stem portion controls an amount of the gas flowing into the discharge hole via the communication hole due to a difference in distance from the seat portion due to the upward / downward movement,
And the seat unit can be discharged to the outside of the second cover portion via the second hole. The method according to claim 1,
The actuator unit
A first guide part detachably coupled to the first hole, the first guide part maintaining a constant axis of the stem part;
. 3. The method of claim 2,
A first cover portion for accommodating at least a part of the stem portion;
A first spring part having one end coupled to the inside of the first cover part to provide a restoring force; And
A piston portion positioned at the other end of the first spring portion and capable of transmitting the restoring force to the stem portion;
Further comprising: The method of claim 3,
A manifold disposed in the frame, the manifold having a channel through which fluid flows to apply pressure to the piston;
Further comprising: The method according to claim 1,
The actuator unit
A first seal provided to prevent fluid from flowing into the frame;
. delete delete The method according to claim 1,
The seat unit
A second seal provided to prevent the gas from leaking out of the frame;
. An inflow hole into which a gas flows, a discharge hole through which the gas is discharged, and a frame formed so that an opening hole is opposed to each of an upper portion and a lower portion,
Installing an actuator unit in the upper opening hole, the actuator unit including a stem portion reciprocating a predetermined distance; And
And a second guide portion provided inside the lower opening hole and formed with a communication hole communicating the inlet hole and the discharge hole, wherein the seat unit includes a seat portion provided opposite to the stem portion, Installing in the lower opening hole so as to coincide with the axis of the actuator unit;
Wherein the hydraulic device is mounted on a vehicle. 10. The method of claim 9,
The step of installing the actuator unit
Coupling the stem portion and the first guide portion that keeps the axis of the stem portion constant; And
Installing the first guide portion in close contact with the upper opening hole;
Wherein the hydraulic device is mounted on a vehicle. 10. The method of claim 9,
The step of installing the seat unit
Coupling the seat portion and a second guide portion supporting a position where the seat portion is installed;
Placing the second guide portion with the sheet portion coupled to the lower opening hole;
Adjusting the position of the seat portion to fit the axis of the actuator unit; And
Fixing the actuator unit and the seat unit by coupling the second cover part to the lower end of the frame;
Wherein the hydraulic device is mounted on a vehicle.

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