KR101175790B1 - Apparatus for connecting servo valve - Google Patents

Abstract

Disclosed is a servo valve connection device. The disclosed invention includes: a valve stand portion having a first hole portion communicating with a hydraulic supply pipe for supplying a fluid to a servovalve; A second hole portion communicating with the servo valve is formed, and a plate portion coupled to the valve stand portion such that the second hole portion communicates with the first hole portion; And a sealing part mounted to surround the connecting portion of the first hole part and the second hole part, and preventing a fluid flowing between the first hole part and the second hole part from leaking between the valve stand part and the plate part.
According to the present invention, the fluid is prevented from leaking in the connecting portion of the servo valve and the hydraulic supply pipe corresponding to the connecting portion of the first and second hole portions, that is, the connecting portion of the servo valve and the hydraulic supply pipe.

Description

Servo valve connecting device {APPARATUS FOR CONNECTING SERVO VALVE}

The present invention relates to a servo valve connecting device, and more particularly to a servo valve connecting device for connecting the servo valve with the hydraulic supply pipe.

In general, the servo valve (Servo valve) is widely used in the industrial field is used in the electric automation hydraulic equipment for adjusting the gap between the upper and lower work roll of the rolling mill. The servo valve controls the pressure or flow rate by a mechanical or electrical input signal, and controls the flow rate and oil pressure of the fluid supplied from the hydraulic supply pipe to the hydraulic cylinder in the process of processing, conveying and positioning the workpiece.

The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.

SUMMARY OF THE INVENTION An object of the present invention is to provide a servovalve connection device capable of suppressing leakage of fluid from a connection portion of a servovalve and a hydraulic supply pipe.

The servo valve connecting device according to the present invention includes: a valve stand portion having a first hole portion communicating with a hydraulic supply pipe for supplying a fluid to a servo valve; A second hole portion communicating with the servo valve is formed, and a plate portion coupled to the valve stand portion such that the second hole portion communicates with the first hole portion; And a sealing part mounted to surround the connection part of the first hole part and the second hole part, and a sealing part which suppresses leakage of fluid flowing between the first hole part and the second hole part between the valve stand part and the plate part. do.

In addition, the plate portion is preferably formed to be concave to surround the first hole portion is provided with a sealing groove for mounting the sealing portion.

In addition, the sealing portion is preferably provided to protrude toward the valve stand portion from the sealing groove portion to be in close contact with the valve stand portion.

In addition, the plate portion is preferably detachably coupled to the valve stand portion.

In addition, the valve stand portion is preferably formed in the valve stand portion in which the first hole is formed inwardly provided with a mounting groove for mounting the plate portion.

According to the servovalve connection device of the present invention, by providing a sealing portion for blocking the inside of the connecting portion of the first hole portion and the second hole portion from the outside, the connection portion of the first hole portion and the second hole portion, that is, of the servo valve and the hydraulic supply pipe, It is possible to suppress the leakage of fluid in the connecting portion of the servo valve and the hydraulic supply pipe corresponding to the connecting portion.

In addition, the present invention has a structure in which the sealing portion is mounted in the form of being inserted into the sealing groove portion is supported by the sealing groove portion, thereby suppressing the change in the mounting position and shape of the sealing portion, thereby leaving the mounting position deviation, damage, shape It is possible to reduce the risk of fluid leakage due to changes.

In addition, the present invention allows the communication of the first hole portion communicating with the hydraulic supply pipe and the second hole portion communicating with the servo valve can be made by simply inserting the plate portion into the mounting groove, thereby supplying fluid from the hydraulic supply pipe to the servovalve. The connection between the hydraulic supply pipe and the servo valve can be done easily and efficiently.

In addition, the present invention by the plate portion is detachably coupled to the valve stand portion to facilitate the mounting and detachment of the beam valve, it is possible to improve the convenience of replacement and repair of the servo valve.

1 is an exploded perspective view showing a servovalve connection device according to an embodiment of the present invention.
Figure 2 is a perspective view showing a servo valve connecting device according to an embodiment of the present invention.
3 is a cross-sectional view taken along the line “AA” of FIG. 2.

Hereinafter, an embodiment of a servovalve connection device according to the present invention will be described with reference to the accompanying drawings. For convenience of description, the thicknesses of the lines and the size of the elements shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is an exploded perspective view showing a servo valve connecting device according to an embodiment of the present invention, Figure 2 is a perspective view showing a servo valve connecting device according to an embodiment of the present invention, Figure 3 " Sectional view along the line AA ".

1 to 3, the servovalve connection device 100 according to an embodiment of the present invention includes a valve stand 110, a plate 120, and a sealing 130.

The valve stand 110 forms a skeleton of the servovalve connection device 100 according to the present embodiment, and is installed on the bottom surface of the workplace where the servovalve 10 is installed or coupled to another facility to fix the position. A hydraulic supply pipe 20 for supplying a fluid to the servo valve 10 is connected to a lower portion of the valve stand 110, and an upper portion of the valve stand 110 is connected to a servo valve via a plate 120 to be described later. 10) is connected.

The first hole 111 is formed in the valve stand 110. The first hole 111 is formed to penetrate in the vertical direction at approximately the center of the valve stand 110. The first hole 111 is in communication with the hydraulic supply pipe 20 coupled to the lower portion of the valve stand 110, so that the fluid supplied through the hydraulic supply pipe 20 is the valve through the first hole 111 It may flow into the stand 110.

In addition, the valve stand 110 has a mounting groove 115. The mounting groove 115 is formed inside the valve stand 110 having the first hole 111 formed therein, and is recessed in the upper surface of the valve stand 110 on which the plate 120 is mounted.

The plate part 120 is mounted to the valve stand part 110. The plate portion 120 is equipped with a servo valve 10. That is, the servo valve 10 is mounted to the valve stand 110 via the plate 120. The second hole 121 is formed in the plate 120. The second hole part 121 is formed to penetrate in the longitudinal direction at the center of the plate part 120. The second hole 121 is in communication with the servo valve 10.

According to the present embodiment, the plate part 120 is detachably mounted to the valve stand part 110 in such a manner that a part of the plate part 120 is inserted into the mounting groove part 115 concave formed in the valve stand part 110. The plate portion 120 may be stably mounted to the valve stand 110 by a mounting position guided by the mounting groove 115. At this time, the mounting portion of the plate 120 is guided so that the second hole 121 communicates with the first hole 111.

The combination of the valve stand part 110 and the plate part 120 having the coupling structure as described above, the first hole portion 111 and the second hole portion in communication with the servo valve 10 to communicate with the hydraulic supply pipe 20. Communication of the 121 is to be made only by inserting the plate portion 120 into the mounting groove 115. The combination of the valve stand part 110 and the plate part 120 makes it easy and efficient to connect the hydraulic supply pipe 20 and the servo valve 10 for supplying a fluid from the hydraulic supply pipe 20 to the servo valve 10. This can be achieved.

In addition, the combination of the valve stand part 110 and the plate part 120 has a structure in which the plate part 120 is detachably coupled to the valve stand part 110, thereby attaching and detaching the servo valve 10. Since it becomes easy, the convenience of replacement and repair of the servovalve 10 can be improved.

The sealing part 130 is mounted on the outer side of the connection portion between the first hole part 111 and the second hole part 121. The sealing part 130 prevents the fluid flowing between the first hole part 111 and the second hole part 121 from leaking between the valve stand part 110 and the plate part 120.

In the present embodiment, the sealing portion 130 is illustrated as being mounted on the plate portion 120. In addition, a sealing groove 125 is provided on the lower surface of the plate 120 facing the valve stand 110, and the sealing 130 is mounted to the sealing groove 125. Specifically, the sealing groove 125 is formed concave to surround the first hole 111. In addition, the sealing unit 130 is formed in a shape corresponding to the shape of the sealing groove 125 is inserted into the sealing groove 125. As an example, the sealing part 130 and the sealing groove part 125 are formed in a ring shape.

The sealing part 130 surrounds the connection part of the first hole part 111 and the second hole part 121 to shield the connection part of the first hole part 111 and the second hole part 121. The sealing part 130 has a fluid flowing between the first hole part 111 and the second hole part 121 outside the connection portion of the first hole part 111 and the second hole part 121, that is, the servo valve 10. ) And the leak between the valve stand 110 and the plate 120 corresponding to the connection portion of the hydraulic supply pipe 20 is suppressed.

On the other hand, the sealing unit 130 is mounted to the sealing groove 125, it is provided to protrude toward the valve stand 110 from the sealing groove 125. Since the sealing part 130 is in close contact with the plate part 120 and the valve stand part 110, the fluid flowing between the first hole part 111 and the second hole part 121 is in the valve stand part 110 and the plate. Leakage between the parts 120 can be suppressed more effectively.

According to the present embodiment, since the sealing unit 130 is supported by the sealing groove 125 by being inserted into the sealing groove 125 as described above, the hydraulic pressure applied through the hydraulic supply pipe 20 is first applied. Even when acting on the hole portion 111, the second hole portion 121 and the connecting portion of the first hole portion 111 and the second hole portion 121, the change of the mounted position and shape is suppressed. The servo valve connecting device 100 of the present embodiment having such a configuration supports the sealing part 130 and prevents the sealing part 130 from being released from its mounting position due to the hydraulic pressure applied through the hydraulic pressure supply pipe 20. In addition, by suppressing the shape change of the sealing part 130 to suppress the damage and permanent shape change of the sealing part 130, the risk of leakage of fluid due to the separation, damage, shape change of the sealing part 130 Can be reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

100: servo valve connection device 110: valve stand
111: first hole 115: mounting groove
120: plate portion 121: second hole portion
125: sealing groove portion 130: sealing portion

Claims (5)

A valve stand portion having a first hole portion communicating with a hydraulic supply pipe for supplying a fluid to the servo valve;
A plate portion coupled to the valve stand so that the second hole portion communicates with the servo valve, and the second hole portion communicates with the first hole portion; And
A sealing part mounted to surround the connection part of the first hole part and the second hole part, and for preventing a fluid flowing between the first hole part and the second hole part from leaking between the valve stand part and the plate part; Include,
The valve stand portion,
It is provided with a mounting groove formed concave inward on the upper surface on which the plate portion is mounted,
The plate portion is mounted to the valve stand portion in such a way that a mounting position is guided by the mounting groove portion so that a portion thereof is inserted into the mounting groove portion. Servo valve connection device, characterized in that the communication of the hole.
The method of claim 1,
The plate portion is formed to be concave to surround the first hole portion servo valve connecting device characterized in that it comprises a sealing groove for mounting the sealing portion.
The method of claim 2,
And the sealing portion protrudes from the sealing groove portion toward the valve stand portion to be in close contact with the valve stand portion.
4. The method according to any one of claims 1 to 3,
And the plate portion is detachably coupled to the valve stand portion.
delete

Images