KR200205990Y1 - Blower overload release device - Google Patents

Abstract

The present invention is a blower overload release device that is improved to achieve a stable operation by precisely adjusting the flow of fluid in the blower tube by raising it quickly if the stopper that opens and closes the blower tube cannot be raised due to the overload of the drive motor. It is about.

The present invention is a fixing nut of the vertical shaft is mounted on the inner side of the stopper formed on the disk, the elastic spring is interposed below the fixing nut is coupled to the disk and the vertical axis is rotatable and connected so as to be displaced up and down relative to each other And, and provided with a casing is mounted to surround the check hole formed directly below the disk, and has a pressing rod extending through the casing to the lower side of the disk, the lower end of the pressing rod is connected to the operating rod of the hydraulic cylinder On the other hand, one side of the push bar is formed with a touch bar, the upper and lower limit switches for contacting the touch bar to adjust the up and down stroke of the hydraulic cylinder is mounted, the hydraulic cylinder is a push rod when the overload occurs in the drive motor And a disk lifter configured to lift up the disk to eliminate pinching of the disk. It provides an overload release device.

Description

Blower overload release device

The present invention relates to a blower valve installed in a blower pipe of a blower facility to block the flow of fluid flowing therein. More specifically, when the stopper for opening and closing the blower pipe does not rise due to an overload of a driving motor, the lifter quickly raises a seamless It is related with the air blower overload release device improved to achieve a stable operation by precisely controlling the fluid flow in the blower pipe by the operation.

In general, the blower facility uses air in the air for the operation of the blast furnace plant by using a filtration device. The blower facility is equipped with a blower tube through which internal fluid flows, and the blower tube is equipped with a blower to block the flow of fluid. To lose.

As shown in FIG. 1, the air blowing valve 100 has a vertical shaft 105 that is movable up and down by an upper driving motor 102, and a valve body is disposed at an intermediate portion of the vertical shaft 105. The gland packing 110, the bolt 112, the bush 114, and the like are installed to prevent the internal fluid from being drawn out to and from the 107. And, the lower end of the vertical shaft 105 is mounted with a disk 125 for blocking the flow path of the blower pipe 120, the vertical shaft 105 is bush 126 to be connected in a rotatable state with respect to the disk 125 And a bolt 126a inserted into the stopper 127 on the upper side of the disk 125 and coupled to the lock nut 130 and the tapered pin 132 in the stopper 127 to be rotatable. The vertical axis 105 is rotatable so as to raise the disk 125 to the upper side space P of the body 107, or as shown in the dashed line in FIG. It can be lowered to prevent the flow of fluid. In addition, the blower pipe 120 at the lower side where the disk 125 is located has a structure in which a cleaning and inspection opening 140 is formed.

On the other hand, the blower 100 as described above, when the power is applied to the drive motor 102 is rotated the built-in gear (not shown), which raises the vertical axis 105, connected to the vertical axis 105 The disk 125 is lifted toward the space P inside the body 107 to open the flow path of the blower pipe 120. However, when the driving motor 102 is operated to raise the vertical shaft 105 and the disk 125, the air blower 100 is not raised due to the state in which the disk 125 is firmly caught in the blower pipe 120. If it does not, such a drive motor (10) is an overload is generated and the power supplied to the drive motor 102 is automatically shut off to stop operation.

In this way, when the operation of the drive motor 102 is stopped, the operator is operating to raise the disk 125 by rotating the vertical axis 105 by manual operation. However, the manual operation by such an operator takes a long time, which is typically longer than the normal opening time of operating for about two minutes, so that the fluid supplied from the blower pipe 120 is not controlled and supplied in large quantities. Normal operation of the factory became difficult and caused a lot of problems such as enormous disruption of subsequent work.

The present invention is to solve the conventional problems as described above, the purpose is that the disk is kept in the state of being caught in the air blower during the operation of the disk when the drive motor is overload because the smooth operation is not made, the disk, It is an object of the present invention to provide an improved blow valve overload release device that can release the disk jammed and achieve a smooth opening operation of the blow valve by quickly pushing up.

Figure 1 is a detailed view showing a conventional blowing side edge as a whole.

2 is a block diagram of a blower overload release device according to the present invention.

Figure 3 is an exploded perspective view showing a buffer portion configuration of the blower overload release device according to the present invention.

Figure 4 is a detailed view showing the disk rising portion of the blower overload release device according to the present invention.

* Explanation of symbols for main parts of the drawings

10: shock absorber 12: stopper

14: fixing nut 18: adjustment ring

22: fixture 25: elastic spring

30 disc rising portion 35 push bar

37: hydraulic cylinder 40: hydraulic system

42: control panel 47: touch bar

50a, 50b: upper and lower limit switch 100: blowing side

102: drive motor 105: vertical axis

120: blower tube 125: disk

p: space

In order to achieve the above object, the present invention has a vertical axis that can be moved up and down by a drive motor on the upper side, and in the middle of the vertical axis to prevent the inner fluid from being drawn out between the valve body and the outside. And a gland packing and a bolt and a bush, and at a lower end of the vertical shaft, a blower having a disk blocking a flow path of a blower tube, wherein a fixing nut of a vertical shaft is mounted inside the stopper formed on the disk. An elastic spring is interposed between the lower part of the nut and the shock absorbing part connected to the disk and the vertical axis to be rotatable and displaceable with respect to each other; and a casing mounted to surround the check hole formed directly below the disk. A pressing rod extending through the casing to the lower end of the disc, the pressing An operating rod of the hydraulic cylinder is connected to the lower end of the hydraulic rod, and a touch bar is formed at one side of the push rod, and the upper and lower limit switches are mounted to contact the touch bar to adjust the upward and downward strokes of the hydraulic cylinder. When the overload occurs in the drive motor by raising the push bar, the disk rising unit is configured to remove the pinch of the disk; by providing a blower overload release device comprising a.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Ventilation valve overload release device 10 according to the present invention, as shown in Figure 2, the disk 125 and the vertical axis 105 is rotatable and connected to be displaceable up and down with respect to each other while being rotatable Has As shown in detail in FIG. 3, the shock absorbing portion 10 has a vertical shaft 105 fitted into an inner side of the X-shaped stopper 12 formed in the disk 125 so that the fixing nut 14 is used as the pin 16. It is mounted, the height of the lifting height adjustment ring 18 and the hollow height adjustment screw 19 is coupled to the lower portion of the fixing nut 14, the height adjustment screw 19 is a hollow ball-type fixture 22 ) And an elastic spring 25 is interposed in the fixing tool 22 to support the fixing nut 14 of the vertical shaft 105 through the adjusting screw 19. And, the lower end of the fastener 22 is integrally connected to the disk 125, the elastic spring 25 supports the adjustment screw 19, the upper surface of the adjustment screw 19 and the adjustment ring 18. Fixing nut 14 of the vertical shaft 105 in contact with the elastic screw 25 is to receive the buffer force through the adjustment screw (19). Therefore, the disk 125 is vertically up and down with respect to the vertical axis 105 by the fixing nut 14 of the lower side is supported by the elastic spring 25 inside the stopper 12 even when the vertical axis 105 is fixed. It is movable and at the same time the vertical axis 105 is rotatably connected with respect to the disk 125.

On the other hand, the disk lifting unit 30 is configured to remove the state in which the disk 125 is pinched in the blower tube 120, as shown in detail in Figure 4, the check hole 140 formed directly below the disk 125 A casing 32 is mounted at the bottom to surround the press, and the push rod 35 extends through the sealing ring 34 of the casing 32 and extends from the inside of the casing 32 to the lower side of the disk 125. And an operating rod 37a of the hydraulic cylinder 37 is integrally connected to the lower end of the push rod 35, while the hydraulic cylinder 37 is operated by an overload signal of the driving motor 102. It is connected via the control panel 42 to the hydraulic system 40, the internal hydraulic circuit is configured to advance (37a), the hydraulic cylinder 37 is the lower end is supported on the base concrete base 45.

In addition, a touch bar 47 having an uneven portion 47a is formed at one side of the push bar 35, and the hydraulic cylinder 37 is in contact with the touch bar 47 at the side of the touch bar 47. The upper and lower limit switches 50a and 50b for adjusting the up and down strokes of the upper and lower strokes are mounted on the holder 52, and the limit switches 50a and 50b are connected to the hydraulic system 40 at the control panel 42. When the touch bar 47 is in contact with the upper limit switch (50a) by being electrically connected through the control panel) to control the hydraulic cylinder 37 so that no further rise of the operating rod (37a), the touch bar 47 is When the lower limit switch (50b) is in contact with the control rod so as not to lower the further operation rod 37a.

The blower overload release device 1 of the present invention configured as described above has no obstacle to the rising of the disk 125 when the driving motor 102 of the blower 100 is operated to open the blower pipe 120. In this case, if the disk 125 is inserted into the blower tube 120 and the driving motor 102 is overloaded, the overload signal of the driving motor 102 is applied to the control panel 42 and the control panel 42. In) will operate the hydraulic system (40). The hydraulic system 40 operates the hydraulic cylinder 37 to raise the push bar 35 so that the tip of the push bar 35 raises the lower end of the disk 125 in the blower pipe 120 by the hydraulic force. The disk 125 is released and the overload of the driving motor 102 is immediately released. In this process, ascending operation of the disk 125 due to the rise of the push bar 35 is performed even though the vertical shaft 105 is fixed by being engaged with a gear part (not shown) of the driving motor 102. It is made by pressing the elastic spring 25 of the shock absorbing portion 10 embedded in the upper part by pushing only the disk 125 inserted into the blower pipe 120 to the upper side and does not cause any damage to the gear portion of the drive motor 102. .

In this process, the raising operation of the push bar 35 causes the touch bar 47 to rise, and when the touch bar 47 contacts the upper limit switch 50a, an electrical signal is generated from the upper limit switch 50a. It is sent to the control panel 42 to stop the further operation of the hydraulic cylinder 37 to prevent the excessive rise of the push rod (35). At the same time, the control panel 42 lowers the push bar 35 connected to the hydraulic cylinder 37 through the hydraulic system 40 so that the push bar 35 is lowered to an initial state, and the push bar 35 When the touch bar 47 of) touches the lower limit switch 50b, the further lowering operation is stopped and the overload release operation of the blower 100 is terminated.

On the other hand, the upward displacement of the disk 125 with respect to the vertical axis 105 can be made by the adjusting ring 18 and the adjusting screw 19 provided in the buffer portion 10, which is adjusted with respect to the adjusting ring 18 As the operator adjusts the screwing depth of the screw 19, the length of the adjusting ring 18 and the adjusting screw 19 in the stopper 12 is changed, so that the disk 125 with respect to the vertical axis 105 rises, The downward displacement can be determined.

According to the present invention as described above, when the disk 125 is held up in the air blower 120 during the rising operation of the disk 125, when the smooth rising operation is not achieved, the driving motor 102 is overloaded. The overload signal is provided to the hydraulic system 40 through the control panel 42 to operate the hydraulic cylinder 37 of the disk lifter 30 and to the operating rod 37a of the hydraulic cylinder 37. The push rods 35 which are connected and lifted up and down quickly release the pinch of the disk 125 by rapidly pushing the disk 125 in the blower pipe 120.

Therefore, the blast furnace operation connected to the blower pipe 120 can be smoothly achieved by quickly opening the blower 100, and an improved effect of achieving stable operation is obtained.

Claims (1)

Equipped with a vertical shaft 105 that can be moved up and down by the drive motor 102 of the upper side, in the middle of the vertical shaft 105 to prevent the inner fluid is drawn out to the outside between the valve body 107 In the air blowing valve equipped with a gland packing 110 and the bolt 112 and the bush 114, and the disk 125 to block the flow path of the blower pipe 120 at the lower end of the vertical shaft 105, The fixing nut 14 of the vertical shaft 105 is mounted inside the stopper 12 formed on the disk 125, and the elastic spring 25 is interposed between the disk 125 and the lower portion of the fixing nut 14. And a shock absorbing part 10 connected to the vertical axis 105 so as to be rotatable and displaceable up and down with respect to each other; and a casing 32 mounted to surround the check hole 140 formed directly below the disc 125. And the tip extends through the casing 32 to the lower side of the disk 125. It is provided with a pressing rod 35, the lower end of the pressing rod 35 is connected to the operating rod 37a of the hydraulic cylinder 37, while the touch bar 47 is formed on one side of the pressing rod 35 The upper and lower limit switches 50a and 50b are mounted to be in contact with the touch bar 47 to adjust the up / down stroke of the hydraulic cylinder 37, and the hydraulic cylinder 37 is a drive motor 102. Ventilation valve overload release device comprising a; disk riser 30 is configured to remove the pinch of the disk 125 by raising the push bar (35) when an overload occurs.