KR101185092B1 - Hydraulic cylinder of segment spray width adjustment device - Google Patents

Abstract

PURPOSE: A hydraulic cylinder for adjusting segment spray intervals of a continuous casting facility is provided to enable accurate and minute operation in spite of using for a long time because durability is increased by preventing the leakage of working oil of a hydraulic cylinder. CONSTITUTION: A hydraulic cylinder(100) for adjusting segment spray intervals of a continuous casting facility comprises a cylinder rod(10), a cylinder housing(20), a cylinder head(40), and a cylinder plate(30). The cylinder rod is inserted in the cylinder housing and a V-packing placing part is formed in the cylinder housing. The cylinder housing is coupled to the cylinder head and a dust seal(90) is mounted on the front surface of the cylinder head. The cylinder head is coupled to the cylinder plate. The cylinder plate comprises a V packing protrusion portion at the bottom.

Description

Hydraulic Cylinder of Steel Casting Equipment Segment Spray Spacing Device {Hydraulic Cylinder Of Segment Spray Width Adjustment Device}

The present invention relates to a hydraulic cylinder of the steel casting equipment segment SWA apparatus provided to extend the life of the hydraulic cylinder by mounting the V-packing inside the hydraulic cylinder, and more particularly, the hydraulic cylinder widely used in machinery Steel packing equipment segment SWA with V-packing inside to prevent lubricating oil from leaking out due to considerable pressure generated inside the cylinder and to extend the life of the packing worn by the reciprocating linear movement of the cylinder. It relates to a hydraulic cylinder of the device.

Steel cylinders operated by hydraulic cylinders The SWA Segment Unit is part of the apparatus used for the cooling process of the slab, which is a facility that affects the slab quality. The head equipped with the spray nozzle to which the coolant is sprayed ejects the coolant evenly to the slab that has entered the cooling process. The steel casting segment SWA device unit pushes the head with the spray nozzle to approach the slab. The head equipped with the spray nozzle is not affected by the width of the slab by the steel casting equipment segment SWA unit and automatically closes to the optimized position and cools by spraying the coolant evenly over the slab. This prevents the occurrence. As the cooling process has a significant impact on the quality of the produced slab, the steel casting segment SWA device unit plays a very important role. Steel Segmentation Equipment Segment SWA device unit is configured to automatically adjust the width by the hydraulic cylinder provided inside. For a brief look at the hydraulic cylinder, the hydraulic cylinder is a linear motion of large output and thrust by controlling the hydraulic pressure inside the cylinder. In other words, the Pascal principle is an actuator in which the cylinder performs a linear motion proportional to the effective area and the pressure difference. The principle of operation of a hydraulic cylinder is that the cylinder is pressurized in accordance with the principle of Pascal that the pressure is transmitted to all parts when the complete liquid, which ignores viscosity and compressibility, is sealed in the container and pressure is applied to a part of the cylinder. The higher the force applied, the slower the flow rate will have to be drawn into the cylinder.

1 is a brief look at the internal structure and configuration of a conventional hydraulic cylinder, as shown in Figure 1, the cylinder round bar 170 is provided with a stopper 171 inside the cylinder tube 160 coupled to the head 140 large ) Is inserted. The cylinder round bar 170 may be freely linear movement due to the rod seal 130 and the bush 150 mounted inside the head portion 140, the hydraulic pressure generated as the hydraulic fluid flows from the port 180 The cylinder round bar 170 is advanced and, conversely, the cylinder round bar 170 is retracted according to the reduced hydraulic pressure when the hydraulic fluid is discharged from the port 180. At this time, the stopper 171 provided in the lower portion of the cylinder round bar 170, when the cylinder round bar 170 is advanced to the maximum point to contact the lower end of the head 141 serves to prevent the departure, the cylinder round bar 170 is retracted When it stops completely touching the lower cylinder 161.

Therefore, the weight member 110 coupled to the handle 120 may be lifted by hydraulic force due to the forward and backward movement of the cylinder round bar 170 operating based on the above structure.

As described above, the hydraulic cylinder that can exert a large force even in a small size is applied to various fields such as a vehicle, a train, an airplane, a large construction machine, various control devices, etc. The hydraulic oil gradually leaks to the outside along the cylinder rod 52 which does not endure the enormous hydraulic pressure generated by the inflow of the hydraulic oil, and thus, the performance of the hydraulic cylinder can be directly related to safety accidents. A safer hydraulic cylinder is required to improve the performance and life of the hydraulic cylinder while preventing hydraulic fluid from leaking to the outside.

The cylinder rod mounted and operated inside the hydraulic cylinder gradually wears on the surface of the cylinder rod as the linear movement increases, and the dust generated during the wear flows into the cylinder housing along the retracting cylinder rod. To prevent this, a dust seal is mounted on the cylinder head part. Conventional hydraulic cylinders do not withstand the hydraulic pressure generated inside the cylinder housing and prevent the leakage of the hydraulic oil to the outside. Therefore, the hydraulic seal does not withstand the hydraulic pressure generated by the operation of the cylinder rod. It will be. The dust seal only serves to prevent the dust generated on the cylinder rod surface from entering the cylinder housing, but it does not endure the internal pressure of the hydraulic cylinder, so the stability is not guaranteed. As it becomes, it is inevitable to pay more attention to maintenance.

Therefore, when the conventional hydraulic cylinder is mounted on the steel casting equipment segment SWA device unit as described above, the spray nozzle head, which must spray the coolant evenly and close to the slab, is not precisely operated, and thus the quality of the produced slab is quite high. It is obvious that there is a need for a steel casting equipment segment SWA device unit that employs a hydraulic cylinder that is more durable and precisely operated.

The present invention has been made to actively solve the above problems, and is equipped with a V-packing provided with a flow preventing wing membrane inside the hydraulic cylinder to increase the durability of the hydraulically operated cylinder, and improve the operation rate The challenge is to apply a hydraulic cylinder with built-in V-packing to the steelmaking equipment segment SWA device to complete the structure with improved stability.

In the hydraulic cylinder of the steel casting equipment segment spray spacing device configured to achieve the above problem,

The cylinder housing 20 into which the cylinder rod 10 is inserted is coupled to the cylinder head 40 having the V-packing seat 41 formed therein, and the cylinder head 40 has a dust seal (B) on the front surface thereof. 90 is mounted and coupled to the cylinder plate 30 provided with a V-packing binding protrusion 31 at a lower portion thereof, in a space spaced between the V-packing mounting portion 41 and the V-packing binding protrusion 31. The V-packing front coupling ring 50 and the V-packing rear coupling ring 60 are characterized in that the V-packing 70 is integrated.

In addition, the V-packing 70 is provided with a flow preventing member 71 having a curved wing film 75 formed at an outer circumference and an inner circumference divided into three portions, and the front binding portion 72 and the rear at the front are provided. It is characterized in that the rear binding portion 73 is formed.

In addition, the V-packing front binding ring 50 is characterized in that the front receiving portion 52 is coupled to the front binding portion 72 of the V-packing 70 is provided.

In addition, the V-packing rear binding ring 60 is characterized in that the rear support portion 61 is coupled to the rear coupling portion 73 of the V-packing 70 is provided.

According to the hydraulic cylinder of the steel casting equipment segment SWA apparatus of the present invention implemented in the above structure, as the hydraulic cylinder hydraulic fluid is prevented from leaking, the durability is increased, so that accurate and detailed operation is possible even in long-term use, and furthermore, the hydraulic cylinder In the mechanical device using the effect is that it is easier to maintain and ensure the stability.

1 is a cross-sectional view showing a configuration according to the internal structure of a conventional hydraulic cylinder.
Figure 2 is a partial cross-sectional view of the hydraulic cylinder of the steel casting equipment segment SWA apparatus produced by the embodiment of the present invention.
3 is a partially enlarged view for showing a V-packing seat.
4 is a partially enlarged view of a portion A in FIG. 2.
5 is a cross-sectional view of the V-packing produced by an embodiment of the present invention.
Figure 6 is a perspective view and a partial cross-sectional view of the front and rear of the V-packing produced by an embodiment of the present invention.
Figure 7 is an exemplary view showing the advance of the cylinder rod in the hydraulic cylinder of the steel casting equipment segment SWA device produced by the embodiment of the present invention.
Figure 8 is an exemplary view showing the retraction of the cylinder rod in the hydraulic cylinder of the steel casting equipment segment SWA device produced by the embodiment of the present invention.
9 is a perspective view and a partial cross-sectional view of the V-packing front binding ring produced by an embodiment of the present invention.
10 is a perspective view and a partial cross-sectional view of the V-packing back binding ring produced by an embodiment of the present invention.

The present invention relates to a hydraulic cylinder of the steel casting equipment segment SWA apparatus provided to extend the life of the hydraulic cylinder by mounting the V-packing in the hydraulic cylinder, the V-packing is installed in the hydraulic cylinder generated inside the cylinder Note that it is related to the hydraulic cylinder of the steel casting equipment segment SWA device having a structure that can prevent the lubricating oil from leaking to the outside at a considerable pressure and further extend the life of the packing worn due to the reciprocating linear motion of the cylinder.

Hereinafter, with reference to the accompanying drawings will be described in a batch about the configuration of the present invention and its effects, effects.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various forms, and only the present embodiments are provided to make the disclosure of the present invention complete, and are common in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the invention, which is to be defined only by the scope of the claims. And, throughout the specification, like reference numerals refer to like elements.

1 is a cross-sectional view showing a configuration according to the internal structure of a conventional hydraulic cylinder, Figure 2 is a partial cross-sectional view of the hydraulic cylinder of the steel casting equipment segment SWA device produced by an embodiment of the present invention, Figure 3 is V-packing seating 4 is a partially enlarged view of part A of FIG. 2, FIG. 5 is a cross-sectional view of V-packing generated by an embodiment of the present invention, and FIG. 6 is an embodiment of the present invention. Figure 7 is a perspective view and a partial cross-sectional view of the front and rear of the V-packing generated by the present invention, Figure 7 is an exemplary view showing the advance of the cylinder rod in the hydraulic cylinder of the steel casting equipment segment SWA device produced by the embodiment of the present invention, 8 is an exemplary view showing the retraction of the cylinder rod in the hydraulic cylinder of the steel casting equipment segment SWA device produced according to an embodiment of the present invention, Figure 9 is an embodiment of the present invention W generating a perspective view of a V packing front coupling ring with a partial cross-sectional view, and Figure 10 is a perspective view with a partial cross-sectional view of a V-ring packing rear binding produced by the embodiment of the present invention.

As shown in Figures 2 to 10, the hydraulic cylinder 100 of the steel casting equipment segment SWA apparatus to be applied to the present invention is a cylinder head coupled with the cylinder housing 20, the cylinder rod 10 is inserted therein ( The V-packing 70 assembled with the V-packing front binding ring 50 and the V-packing rear binding ring 60 to the V-packing seating portion 41 provided on the inner side as the 40 is coupled to the cylinder plate 30. It is configured to be embedded.

In order to help the understanding of the present invention will be described in detail for each component based on the hydraulic cylinder 100 of the steel casting equipment segment S.W.A device.

The cylinder housing 20 described with reference to the accompanying drawings is configured to accommodate the cylinder rod 10 in the inner center, the lower end of the cylinder rod 10, the hydraulic fluid moving tube 82 of the cylinder housing 20 A rod cover 11 having a piston packing 12 closely bonded to the inner wall is formed to operate and control the cylinder rod 10 by hydraulic pressure of the hydraulic oil flowing inside the cylinder housing 20. Therefore, the first hydraulic oil port 80 and the second hydraulic oil port 81 are provided on the outside of the cylinder housing 20 to form a flow path through which the hydraulic oil moves, and the first hydraulic oil port is provided. The 80 and the second hydraulic oil port 81 are connected to the hydraulic oil moving tube 82 formed in the cylinder housing 20 so as to control the linear movement of the cylinder rod 10.

That is, when hydraulic oil flows into the first hydraulic oil port 80, the rod on which the cylinder rod 10 is mounted is hydraulically generated while the hydraulic oil is filled from the rear end of the hydraulic oil moving pipe 82 connected to the first hydraulic oil port 80. The cylinder rod 10 is advanced by gradually pushing the rear surface of the cover 11. On the contrary, when the hydraulic oil flows into the second hydraulic oil port 81, the rod on which the cylinder rod 10 is mounted is hydraulically generated while the hydraulic oil is filled at the front end of the hydraulic oil transfer pipe 82 connected to the second hydraulic oil port 81. The cylinder rod 10 is retracted by gradually pushing the front surface of the cover 11. At this time, when the hydraulic oil flows into the first hydraulic oil port 80, as the rod cover 11 is advanced, the hydraulic oils filled in the front end of the hydraulic oil moving pipe 82 are discharged through the second hydraulic oil port 81 to pump When the hydraulic fluid flows into the second hydraulic oil port 81 and the rod cover 11 is retracted, the hydraulic fluids filled in the rear end of the hydraulic oil transfer pipe 82 are discharged through the first hydraulic oil port 80. To the pump.

In this way, the hydraulic cylinder of the hydraulically controlled method generated as the hydraulic oil is introduced and discharged causes impurities dust as the surface of the cylinder rod 10 is worn due to frequent movement of the cylinder rod 10. When the dust is introduced into the cylinder housing 20 along the retracting cylinder rod 10, the first hydraulic oil port 80 and the second hydraulic oil port 81 or the hydraulic oil moving tube 82 are blocked to supply the hydraulic oil. As a result, it becomes difficult to function as a hydraulic cylinder. In order to solve the above problems, a dust seal 90 is installed at the center of the upper surface of the cylinder plate 30 that is coupled to the cylinder head 40 to prevent dust from being introduced into the cylinder housing 20.

However, the problem that the dust is introduced into the interior of the cylinder housing 20 by the installation of the dust seal 90 may be solved, but it is not mounted for the purpose of withstanding the internal pressure of the cylinder housing 20, so it does not endure the enormous hydraulic pressure and the hydraulic fluid. There is a problem that the oil leakage to the outside through the cylinder rod 10 that performs a linear motion through the dust seal (90).

3 to 4, in order to solve the problems as described above, in the present invention, the V-packing seating portion 41 is formed by the combination of the cylinder head 40 and the cylinder plate 30, and The V-packing seating portion 41 has a V-packing 70 assembled with the V-packing front binding ring 50 and the V-packing rear coupling ring 60.

The upper cover of the cylinder is usually equipped with an intake / exhaust valve, a spark plug or an injection valve, and the cylinder head 40 coupled with the cylinder housing 20 has a V-packing seating portion, which is a space in which the V-packing can be mounted. (41) is formed. The V-packing seating portion 41 formed inside the cylinder head 40 has an easy coupling of the V-packing 70 during maintenance, and a cylinder plate 30 that couples with the cylinder head 40 to have a high binding force after the coupling. It is mutually coupled with the V-packing binding protrusion 31 formed at the bottom of the). That is, the V-packing front binding ring in the spaced space provided in a structure in which the V-packing binding protrusion 31 formed in the cylinder plate 30 is closely coupled to the V-packing seating portion 41 formed inside the cylinder head 40 ( 50) and the V-packing rear coupling ring 60, the V-packing (70) collected by the built-in can be strongly compressed and fixed. And by disassembling only the cylinder plate 30 coupled to the cylinder head 40, the V-packing 70 can be easily replaced with a structure that allows the operator to easily maintain and repair without requiring specialized knowledge or high technology. There is an advantage.

The V-packing 70 mounted on the V-packing seating portion 41 formed by the combination of the cylinder head 40 and the cylinder plate 30 is strongly pressed and fixed as much as it is mounted for the purpose of preventing leakage of hydraulic oil to the outside. 4, it can be seen that the V-packing 70 is tightly and strongly pressed and fixed at the left and right sides.

5 to 6 are views clearly showing the structure of the V-packing 70. The V-packing 70 has a V-packing engagement hole 74 formed at the center thereof so as to be coupled to the cylinder rod 10. The front surface is formed with the front binding portion 72 of the protruding shape, the rear surface is formed with the rear binding portion 73 of the recessed shape, it can be seen that the cross section is V-shaped with a thickness. At this time, the site angle θ ° of the front binding unit 72 and the site angle θ ° of the rear binding unit 73 are equal in size to each other so that the V packing 70 may be closely combined with each other.

And the outer periphery and the inner periphery of the V-packing 70 is formed with a flow preventing member 71 divided into three equal parts to the thickness of the V-packing (70). The flow preventing member 71 is formed to increase the effect of preventing the leakage of the hydraulic oil to the outside along the cylinder rod 10 in a linear motion, the flow preventing member 71 is formed by combining the layers Due to this, it is possible to achieve the effect obtained by combining three packings with only one V-packing 70 of the present invention.

For example, assuming that a generally used U-shaped packing is applied to a hydraulic cylinder, the U-shaped packing is in linear contact with only one surface of the inner wall of the packing mounting portion to be mounted and the surface of the cylinder rod, respectively. The two surfaces formed in the packing of the two ribs serve as a support, and the U-shaped packing is in contact with the inner wall of the seating portion and the surface of the cylinder rod only with one rib and the surface to be constructed. In order to withstand the friction of the cylinder rod in reciprocating linear motion. As a result, due to the long-term frictional force, the durability decreases quickly and damage occurs inside and outside the packing. As a result, the hydraulic fluid of the hydraulic cylinder leaks out to the outside of the packing for a moment. Therefore, frequent inspection and replacement must be performed.

In order to supplement the above problems, the V-packing 70 of the present invention is optimized for hydraulic cylinders, and mainly focuses on constructing ribs of a strong supporting force to withstand the frictional force of the cylinder rod 10 in reciprocating linear motion. The packing is formed in a V shape, and a three-part flow preventing member 71 is formed by combining the outer and inner circumferences of the V-packing 70 to form an additional three auxiliary ribs.

That is, a total of four ribs are constructed on one side of the outer surface of the V-packing 70 of the present invention, and as the rib structure increases, even if any one of the ribs is damaged, it can serve as a packing with an extra rib structure. It is obvious that is improved.

In addition, a wing film 75 supported by the wing film support 76 is formed at an upper end of each flow preventing member 71, and the wing film 75 is formed on the inner wall of the V-packing seat 41. The surface of the cylinder rod 10 is formed in a curved shape so that it can be compressed flexibly and elastically. Since the flow preventing member 71 is divided into three parts and has flexibility by itself, the inner wall and the cylinder rod of the V-packing seat 41 are supported by the wing membrane 75 formed in a flexible curved shape. 10) is inclined so as to be naturally optimized when contacting the surface of each of the flow preventing member 71 is closely gathered with each other so that the hydraulic fluid can no longer be leaked. 7 to 8, the cylinder rod 10 moves forward in the curved direction of the flow preventing member 71 and the wing membrane 75 because the hydraulic oil leaks while the cylinder rod 10 moves forward. The anti-flow member 71 and the wing membrane 75 contacting the surface of the cylinder rod 10 so as to be bent together in the direction of the cylinder rod 10 advancing on the basis of flexibility. Thus, the flow prevention member 71 composed of the wing membrane support 76 and the wing membrane 75 is tightly pressed tightly to serve as a partition wall in which hydraulic fluid can no longer move to completely block leakage. On the contrary, when the cylinder rod 10 is retracted, the curved wing membrane 75 smoothly bends in the same direction as the retraction direction of the cylinder rod 10, and is relatively lower than the coefficient of friction received when the cylinder rod 10 moves forward. Accordingly, it can be said that the durability of the V-packing 70 is further increased in consideration of the fact that the normal packing is equally applied in the forward and backward movement of the cylinder rod.

The V-packing 70 formed on the basis of the structure and features as described above is integrated in the hydraulic cylinder by collecting a large number, even with a few V-packing 70 can exert the effect of mounting several dozen packing even for a long time use Based on the strong durability of the V-packing 70, the maintenance and repair procedures are simplified, thereby obtaining a hydraulic cylinder capable of more detailed operation.

9 to 10, the V-packing 70 binds to the front of the V-packing 70 so that the V-packing 70 is more strongly gathered from each other, and the back of the V-packing 70. There is a V-packing back binding ring 60 is coupled.

The center of the V-packing front binding ring 50 is provided with a ring binding hole 53 which is penetrated in a circular shape so as to be easily mounted on the cylinder rod 10, and a parallel coupling surface 51 is formed on one side thereof. have. The V-packing front binding ring 50 is fixed by the V-packing binding protrusion 31 formed on the cylinder plate 30 to fix the V-packing 70 in close contact with the V-packing binding protrusion 31 and the V-packing front surface. Parallel coupling surfaces 51 formed on the binding ring 50 can be brought into contact with each other in parallel with stability. In addition, the opposite side on which the parallel coupling surface 51 is formed, the front receiving portion 52 is formed, the front receiving portion 52 is formed to be coupled and fixed to the front binding portion 72 of the V-packing (70). However, by forming an internal angle of the same size as the angle θ ° of the front binding portion 72 so that the front receiving portion 52 and the front binding portion 72 can be completely combined when mutually coupled.

In addition, the V-packing rear binding ring 60 is also provided with a ring binding hole 53 which is penetrated in a circular shape so as to be easily mounted on the cylinder rod 10, and a parallel coupling surface 51 is formed on one side thereof. have. However, the parallel coupling surface 51 formed on the V-packing back coupling ring 60 is formed in the opposite direction to the parallel coupling surface 51 formed on the V-packing front coupling ring 50, which is a V-packing back coupling. This is to allow the ring 60 to abut in parallel with the lower inner wall of the lower end of the V-packing seat 41 of the cylinder head 40. Therefore, the V-packing front binding ring 50 abuts in parallel with the V-packing binding protrusion 31 formed on the cylinder plate 30, and the V-packing rear binding ring 60 is formed on the V-packing seating portion of the cylinder head 40. A plurality of V-packings 70, which are assembled to each other between the V-packing front binding ring 50 and the V-packing rear binding ring 60 in a structure of contacting in parallel with the lower inner wall of the lower end of the 41 and squeezed and fixed at left and right. So that they can be closely gathered together. In addition, one side of the opposite side on which the parallel coupling surface 51 is formed is formed with a rear support part 61, and the rear support part 61 is formed to be coupled and fixed with the rear binding part 73 of the V-packing 70. It is formed to protrude into an internal angle of the same size as the angle θ ° of the rear binding portion 73 so that the rear support portion 61 and the rear binding portion 73 can be perfectly assembled when mutually coupled.

As described above, the front accommodating portion 52 of the V-packing front fastening ring 50 and the rear support portion 61 of the V-packing back fastening ring 60 are connected to the front fastening portion 72 and the rear fastening of the V-packing 70. It is formed to be equal to the angle θ ° of the portion 73 is perfectly assembled without a sense of heterogeneity with each other, the parallel coupling surface 51 is formed, the lower inner wall of the V-packing binding projection 31 and the V-packing seating portion 41 Can be securely bound to the V-packing 70 will be able to completely fix the left and right.

The present invention has been described with reference to one embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art may various modifications and equivalent other embodiments from this. Should be clarified. Therefore, the true technical protection scope of the present invention should be interpreted by the appended claims, and all technical ideas within the equivalent scope should be construed as being included in the scope of the present invention.

10: cylinder rod 11: rod cover
12: piston packing 20: cylinder housing
30: cylinder plate 31: V-packing binding protrusion
40: cylinder head 41: V-packing seat
50: V-packing front engagement ring 51: Parallel mating surface
52: front receptacle 53: ring fasteners
60: V-packing rear engagement ring 61: rear support
70: V-packing 71: flow preventing member
72: front binding 73: rear binding
74: V-Packing Binding 75: Wing Shield
76: wing membrane support 80: first hydraulic oil port
81: second hydraulic oil port 82: hydraulic fluid transfer pipe
90: dust seal
100: Hydraulic cylinder of steelworks segment SWA device
110: weight member 120: handle
130: rod seal 140: head
141: lower head 150: bush
160: cylinder tube 161: cylinder lower
170: cylinder round bar 171: stopper
180: port 200: hydraulic cylinder

Claims (4)

delete The cylinder housing 20 into which the cylinder rod 10 is inserted is coupled to a cylinder head 40 having a V-packing seat 41 formed therein and a dust seal 90 mounted on the front thereof. 40 is coupled to the cylinder plate 30 provided with a V-packing binding protrusion 31 at the bottom, the V-packing 70 is formed with a front binding portion 72 and the rear binding portion 73 is the V-packing The V-packing front binding ring 50 having the front receiving portion 52 coupled to the front binding portion 72 of the 70 and the rear support portion mutually coupled to the rear binding portion 73 of the V-packing 70. Steel casting equipment segment spray, characterized in that it is integrated into the spaced space between the V-packing seating portion 41 and the V-packing binding protrusions 31 are collected by the V-packing rear binding ring 60 is provided with (61). In the hydraulic cylinder of the gap adjusting device,
The V-packing 70 is provided with a flow preventing member 71 having a curved wing film 75 formed on the outer periphery and the inner periphery divided into three parts, and the flow in the direction opposite to the direction in which the cylinder rod is advanced. The hydraulic cylinder of the steel casting equipment segment spray spacing device, characterized in that the prevention member 71 and the wing film 75 is formed.
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