KR101281596B1 - Apparatus for actuating a swing typed flowgate - Google Patents

Abstract

PURPOSE: A rotation type movable weir device is provided to prevent noise or topographic change because overflow passing through a movable weir body is not dropped. CONSTITUTION: A rotation type movable weir device comprises a movable weir body (10), a support arm (20), a rotary shaft (30), a support block (40), first and second hydraulic cylinders (50,60), a hydraulic pump, and a flow rate even distribution device. The movable weir body comprises a front side surface (11) including a cut-off surface (11a) and a rear side surface (12) on which a base surface (12a) is formed. The movable weir body rotates between the highest position in which the cut-off surface stands erect towards upstream due to expansion operation of the hydraulic cylinder and the lowest position in which the base surface matches the lower part of the upstream. [Reference numerals] (AA) Down stream; (BB) Water flow direction; (CC) Upper stream

Description

Swiveling movable beam device {APPARATUS FOR ACTUATING A SWING TYPED FLOWGATE}

The present invention relates to a swinging movable beam. In particular, the present invention relates to a swing type movable beam that controls the amount of storage of the river by opening and closing a river, especially a relatively small stream, of which the river is not wide, while turning clockwise or counterclockwise about the central axis of rotation. .

Beams are installed in the streams to control the quantity of the streams. In particular, in order to make up for the shortcomings and damages of the high information that is always installed across the river at a constant height, a number of conducting movable beams that can adjust the flow of the river as needed in recent years have been proposed.

Conventional conductive movable beams have a structure in which they rotate while being rotated about a rotating shaft located near the lower floor, and hydraulic cylinders connected directly to both left and right ends of the movable beam body or respectively connected to rotary levers connected to the rotating shafts on both left and right ends thereof. It is constructed to stretch and move the movable beams.

The conventional conductive movable beam,

First, even if the movable beam body is turned to the lowest position because of the support structure of the movable beam body, which is located near the lower side of the movable beam body and is installed near the lower side of the rear side (usually downstream side) of the movable beam body. The movable beam body is always in the upper position higher than the upstream bottom. In such a structure, there is a problem that sediments rot in the downstream flow path because there is no flow rate from the upstream side to the downstream side in the dry season with little flow rate of the river.

In the above structure, when the upstream flow rate of the movable beam body is overflowed, there is a problem of generating unnecessary vibration or noise and changing the topography of the riverbed as the overflow flows freely from the upper side of the movable beam body to the downstream side.

Second, since the rotary shaft is always located near the lower part of the river below the water surface, solid foreign matter or water microorganisms are attached to the part connected to the lower rotary shaft of the movable beam body, thereby preventing the rotation of the movable beam body.

Third, since the hydraulic oil provided by one pump is branched and supplied to the two hydraulic cylinders which conduct the movable beam body, the two hydraulic cylinders have a load deviation, that is, one hydraulic cylinder has the other If the hydraulic cylinder is overloaded, the difference in the extension length of both hydraulic cylinders occurs due to the characteristics of the hydraulic circuit that causes the flow to flow to the lower hydraulic cylinder. There was a problem. As such, uneven stretching of the hydraulic cylinder causes torsional stress on the movable beam body, causing a problem of causing deformation.

Therefore, the present invention is designed to solve the problems of the conventional conductive movable plate, it is possible to adjust the movable beam body from the lowest position in line with the upstream side of the upstream side up to the maximum position of the upright state, the overflow flow through the movable beam body It is an object of the present invention to provide a swivel movable beam device that allows flow to pass through without falling down.

It is another object of the present invention to provide a movable movable beam device that does not cause a problem that foreign matter enters the operating part and causes an obstacle to the operating part.

In addition, the present invention is to provide a swivel movable beam device that the movable beam body operates uniformly as a whole by constantly supplying a constant flow rate regardless of the load of the hydraulic actuator to a plurality of hydraulic actuators for ups and downs the movable beam body. There is this.

The present invention for achieving the above object is a swing-type movable beam device which is installed in the width direction of the river to block the water upstream of the stream or pass to the downstream side while turning around the rotation axis,

A movable beam body having an outwardly curved curved surface and a flat base surface on a rear surface opposite the exponential surface; Support arms extending from opposite ends of the movable beam body in the longitudinal direction to the opposite sides of the exponential surface; A rotation shaft extending laterally outward at a position spaced apart by a radius of a rotation trajectory of the movable beam body of the support arm; A support block fixedly installed at an edge of the river to be disposed on a side of the support arm, the support block having a bearing member rotatably supporting the rotating shaft at a position spaced upwardly by a rotation radius of the movable beam body; First and second hydraulic cylinders for pivoting the movable shaft body fixed to the rotary shaft by pivoting the rotary shaft while expanding and contracting; A hydraulic pump for supplying hydraulic oil to the first and second hydraulic cylinders to expand and operate the first and second hydraulic cylinders; And a flow equal distribution mechanism for supplying the hydraulic fluid discharged from the hydraulic pump to the first and second hydraulic cylinders at an equal flow rate such that the first and second hydraulic cylinders are stretched and operated at the same length.

The movable beam body is formed in a curved shape by a metal plate material to the outer side by being coupled to the rear side of the front side wall through a plurality of support frames between the front side wall and the front side wall provided with the exponent surface, and the front side wall. And a rear sidewall having the base surface formed thereon.

The hydraulic equal distribution mechanism may include: a first chamber and a second chamber coaxially disposed with the same volume having the same diameter; a first piston head installed inside the first chamber; and a second installed inside the second chamber. A dispensing cylinder having a piston head and one connecting rod connected to each other so that the first piston head and the second piston head interlock with each other; And selectively connecting the respective upside chambers of the first chamber and the second chamber to the large diameter chamber or the drain tank of the first and second hydraulic cylinders, and connecting the respective downside chambers of the first chamber and the second chamber to a hydraulic pump. Or alternatively, first and second switching valves selectively connected to the small diameter chambers of the first and second hydraulic cylinders.

The movable beam body has a top position in which the exponent surface is erected upstream by the expansion and contraction operation of the first hydraulic cylinder and the second hydraulic cylinder, and the exponent surface is in contact with the bottom surface of the floor structure so that the base surface is upstream. And to pivot between the lowest positions consistent with.

The movable beam body is configured to be pivotable to a position where the lower end of the index surface pivots upwardly from the bottom to form a flow path between the bottom structures.

According to the above structure, the present invention can expand the flow rate adjustment width by adjusting the movable beam body from the lowest position coinciding with the upstream side and the upstream position, and the overflow flowing through the movable beam body falls to the downstream side. Since it flows along the base surface without passing through it, it is possible to prevent noise caused by the falling of the overflow current and the change of the topography of the riverbed.

In addition, the present invention, by supplying a constant flow rate to the plurality of hydraulic cylinders at all times in the presence or absence of each load of the plurality of hydraulic cylinders undulating the movable beam body by raising or lowering both sides of the movable beam body to a uniform height, the movable beam body To prevent the occurrence of torsional stress.

Further, in the present invention, since the curved exponential surface of the movable beam body pivots in contact with the floor, foreign matter intrudes therebetween, causing a problem of malfunction.

1 is a perspective view of a swing-type movable beam apparatus of the present invention installed across a river, and is a view of a state in which the water surface 11a of the movable beam body 10 is turned to an upright position with respect to the riverbed.
FIG. 2 is a schematic side view of a state in which the base surface 12a of the movable beam body 10 pivots in a state coinciding with an upstream bottom and passes a maximum flow rate downstream.
3 is a schematic side view of the movable beam body 10 pivoted to any intermediate position between the lowest position and the highest position (upright position).
4 is a schematic side view of a state in which the movable beam body 10 is pivoted to the upright position of the highest position.
5 is a schematic side view of a state in which a flow path is formed between the lower bed and the lower end of the movable beam body by further turning the movable beam body in an upright state of FIG. 4.
Figure 6 is a schematic hydraulic circuit diagram for operating the hydraulic cylinder of the swinging movable beam device of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Fig. 1, the walls 2 are respectively provided at the edges 1a of the stream 1 on which the swingable movable beam apparatus of the present invention is to be installed. This wall 2 is preferably a concrete structure. The movable beam according to the present invention is installed between the pair of walls 2. And reference numeral 3 refers to the floor structure installed in the lower portion of the movable beam. The bottom structure has a curved portion 3a recessed downward to correspond to the curved surface of the exponential surface 11a of the movable beam body 10 described later.

The swingable movable beam apparatus of the present invention includes a movable beam body (10), support arms (20) provided at each of left and right ends of the movable beam body (10), and a tip outer surface of each of the support arms (20). Rotating shaft 30 extending outward from the support block 40 for supporting each of the rotary shafts 30 to a rotatable bearing (not shown), the first hydraulic cylinder for rotating each of the two rotary shafts 30 ( 50) and the second hydraulic cylinder 60 and the hydraulic equalizing mechanism for extending and contracting the hydraulic cylinder (50, 60) to an equal length.

As shown in FIGS. 1 and 2, the movable beam body 10 is preferably provided between the front sidewall 11 and the front sidewall 11, each of which is formed in a convex shape of a metal plate to the outside. It consists of a rear side wall 12 coupled to the rear of the front side wall 11 via the support frame 13 of. The outer side surface of the front side wall 11 becomes the water surface 11a of the movable beam body 10, and the outer side surface of the rear side wall 12 functions as the base surface 12a of the movable beam body 10. The support frame 13 supports the front side wall 11 therein so that the front side wall 11 withstands sufficient water pressure.

The movable beam body 10 is preferably used for the stainless steel sheet in consideration of corrosion resistance and formability, it is also possible to be molded of a synthetic resin such as a plate and polyethylene made of a general structural steel sheet or aluminum alloy material.

The movable beam body 10 is provided with support arms 20 extending toward opposite sides of the index surface 11a at both ends in the longitudinal direction. As shown in FIG. 4, each of the support arms 20 is connected to the rotation shaft 30 at a point corresponding to the rotation radius R of the movable beam body 10 on the index surface 11a. One end of the rotation shaft 30 is inserted into a bushing (not shown) fixed to one side wall of the support arm 20 to be fixed by an axis fixing element such as a key 42, and the other end of the support arm 20 It extends outside the side wall and is rotatably supported by a bearing member (not shown) provided in the support block 40 as described below.

By such a configuration, the movable beam body 10 is a river while pivoting around the rotating shaft 30 supported at the position (H) spaced upward by the rotation radius (R) of the movable beam body (10) at the bottom of the river Block or open the channel.

As shown in FIGS. 1 to 5, the rotation shaft 30 extending from the left and right support arms 20 is the first hydraulic cylinder 50 through the rotation arm 41 in the support block 40. And a second hydraulic cylinder 60. The first hydraulic cylinder 50 and the second hydraulic cylinder 60 rotates the rotary arm 41 while expanding and contracting by the hydraulic oil supplied from the hydraulic pump, and the rotary shaft 30 is fixed to the rotary arm 41. Therefore, the rotary arm 41 rotates together.

Referring to Figures 2 to 5 the operation of the swing-type movable beam apparatus of the present invention will be described.

When the flow rate of the river is small so as to pass the downstream side without blocking the upstream water, the movable beam body 10 should be turned in the state as shown in FIG. The first and second hydraulic cylinders 50 and 60 are shrunk to a minimum length so that the base surface 12a of the movable beam body 10 is positioned at or below the upstream height of the upstream side. Turn In this state, the upstream water flows downstream without being blocked by the movable beam.

When the upstream water is stored at a predetermined level, as shown in FIG. 3, when the movable beam body 10 is slightly inclined, the upper end of the movable beam body 10 protrudes vertically upward from the upstream bottom. The water is stored upstream at a height, and when the flow rate increases, the upper end of the movable beam body 10 flows downstream along the base surface 12a. At this time, since the overflow flows through the base surface 12a without falling from the upper end of the movable beam body 10, noise or vibration caused by the falling water does not occur, or problems such as the change of the topography of the bed.

In the case of storing the upstream water at the highest water level, as shown in FIG. 4, when the movable beam body 10 is turned upright, the water can be stored by the maximum height of the exponential surface 11a on the upstream lower surface. . In this case, the exponential surface 11a forms a curved surface and can withstand the water pressure caused by a large amount of water.

The swing-type movable beam apparatus of the present invention may open the lower portion of the movable beam body without overflowing the upper end of the movable beam body in a state where water is stored at a constant water level, so that the amount of water stored may be as much as a predetermined amount. That is, as shown in FIG. 5, when the movable beam body 10 is further rotated in the direction of the arrow in the upright state of FIG. 4 to open between the lower end of the movable beam body 10 and the upstream side, the stored water is The water is drained downstream through the lower open passage without overflow. In this case, by appropriately adjusting the cross-sectional area of the lower open flow path it is possible to adjust the drainage amount and the corresponding storage amount.

On the other hand, when the swing length of the left and right ends of the movable beam body 10 is different because the expansion lengths of the first hydraulic cylinder 50 and the second hydraulic cylinder 60 are different when the swinging movable beam device is operated. In order to solve the problem that the torsional stress occurs in the (10), the swinging movable beam apparatus of the present invention, the first hydraulic cylinder 50 and the second hydraulic cylinder 60 is made to be always extended to the same length A flow rate equal distribution mechanism for supplying the same flow rate to the first hydraulic cylinder 50 and the second hydraulic cylinder 60 is provided.

As shown in the hydraulic circuit diagram of FIG. 6, the flow rate equalizing mechanism has two independent first chambers 201 and second chambers 202 having the same volume and arranged in a line within a single casing having a constant diameter. And a first piston head 203 installed inside the first chamber 201 and partitioning the first chamber 201 into a rising chamber 201A and a falling chamber 201B, and a second chamber ( A second piston head 204 installed inside the 202 and partitioning the second chamber 202 into the rising chamber 202A and the falling chamber 202B, and the first piston head 203 and the second. It comprises a dispensing cylinder 210 having one connecting rod 205 which connects to each other so that the piston head 204 interlocks.

In the case where the first hydraulic cylinder 50 and the second hydraulic cylinder 60 are extended in order to pivot the movable beam body 10 to the water barrier position, the first hydraulic cylinder 50 and the second hydraulic cylinder 60 are extended by the beam rising signal Su of the controller 300. The first switching valve 211 and the second switching valve 212 are switched to the left side of FIG. 6, and the main control valve 220 is also switched to the right side of FIG. 6.

In this state, the hydraulic oil discharged from the hydraulic pump 250 passes through the first and second switching valves 211 and 212 into the respective lower side chambers 201B and 202B of the first chamber 201 and the second chamber 202. And the two piston heads 203 and 204 move together by the same stroke, thereby discharging the hydraulic fluid of the same flow rate in each of the rising chambers 201A and 202A on both sides, and discharging from each of the rising chambers 201A and 202A. The hydraulic fluid having the same flow rate is simultaneously distributed to the large diameter chambers 51 and 61 of the first hydraulic cylinder 50 and the second hydraulic cylinder 60 via the first and second switching valves 211 and 212. 50 and the piston rod of the second hydraulic cylinder 60 extends to the same length to rotate the left and right rotating shaft 30 of the movable beam body 10 at the same angle. Accordingly, the movable beam body 10 is pivoted at the same angle without twisting left and right.

On the contrary, when the first hydraulic cylinder 50 and the second hydraulic cylinder 60 are contracted to lower the movable beam body 10 to the lower side, the first hydraulic cylinder 50 and the second hydraulic cylinder 60 are contracted by the beam lowering signal Sd of the controller 300. The first switching valve 211 and the second switching valve 212 are switched to the right side of FIG. 6, and the main control valve 220 is also switched to the left side of FIG. 6, so that the hydraulic oil of the hydraulic pump 250 flows into the hydraulic line. Along the L2, the first hydraulic cylinder 50 and the second hydraulic cylinder 60 are simultaneously introduced into the small diameter chambers 52 and 62 at the same flow rate, and the respective piston heads are pushed downward, thereby increasing the large diameter of the hydraulic cylinder. hydraulic fluid discharged from each chamber (51,61) comprises a first switching valve 211 and the second switching valve 212 via a respective falling-side chamber (201B, 202 B) of the dispensing cylinder 210 while flowing into the first the piston head 203 and the second is pushed to the right the piston head 204 at the same time, so that two raised side chambers (201A, 202A) The operating fluid of the same flow rate to be discharged is the drain of a first switching valve 211 and the second switching valve 212 and a hydraulic line (L1) and a drain tank 240 through the main control valve 220. Even in the lowering operation of the movable beam body 10, the distribution cylinder 210 controls the flow rate so that the hydraulic fluid of the same flow rate is discharged from the hydraulic cylinders 50 and 60 on both sides, so that the left and right ends of the movable beam body 10 are It will descend by turning at the same angle.

On the other hand, in the case of an emergency in which the movable beam body 10 must be rapidly lowered, the first switching valve 211 and the second switching valve 212 are placed in a neutral position, and the control unit 300 stops the beam descending signal Se. When the cutoff valve 230 is switched upward in FIG. 6, the hydraulic oil discharged from the large diameter chamber 51 of the first hydraulic cylinder 50 and the large diameter chamber 61 of the second hydraulic cylinder 60 are output. The discharged hydraulic oil passes through the cutoff valve 230 through the hydraulic lines L3 and l4 and is drained to the drain tank 240 without passing through the distribution cylinder 210, thereby allowing the first and second hydraulic cylinders 50 and 60 to pass through. ) Quickly swings down the movable beam body (10) while retracting.

Limit switches 206A and 206B for detecting respective stroke end states of the hydraulic cylinders 50 and 60 are provided on the outer wall of the casing of the first chamber 201 and the second chamber 202 of the distribution cylinder 210. . Each of the limit switches 206A and 206B abuts against the operation plates 208A and 208B at the tip of the operation rods 207A and 207B extending outwardly of the first chamber 201 to provide the stroke end signal to the controller 300. do. When the control unit 300 receives the stroke end signal from the limit switch of each chamber, the control unit 300 blocks the beam rising signal Su or the beam falling signal Sd provided to the switching valve. Accordingly, the switching valve returns to the neutral position by the return spring and shuts down the flow path so that the hydraulic oil is no longer discharged or supplied to the hydraulic cylinders 50 and 60 so that the hydraulic cylinders 50 and 60 are stopped at the position. .

1: river 1a: river edge
2: wall 3: floor structure
3a: curved portion 10: movable beam body
11: front side wall 11a: exponential surface
12: rear side wall 12a: base surface
13: support frame 20: support arm
30: rotating shaft 40: support block
41: rotary arm 42: tall
50: 1st hydraulic cylinder 51: large diameter chamber
52: small diameter chamber 60: second hydraulic cylinder
61: large diameter room 62: small diameter room
201: first chamber
201A: Rising Side Chamber 201B: Falling Side Chamber
202: second chamber 202A: rising chamber
202B: lowering chamber 203, 204: piston head
205: connection rod 206A, 206B: limit switch
207A, 207B: Operating Rod 208A, 208B: Operating Plate
210: distribution cylinder 211, 212: switching valve
220: main control valve 230: cut-off valve
240: drain tank 250: hydraulic pump
L1, L2, L3, L4: Hydraulic Line 300: Control Unit

Claims (5)

It is installed in the width direction of the river (1) is a swing-type movable beam device for turning the water upstream of the stream or passing to the downstream while turning around the rotation axis,
A movable beam body (10) having an outwardly curved curved surface (11a) and a flat base surface (12a) on a rear surface facing the exponential surface (11a); Support arms 20 extending from opposite ends of the movable beam body 10 in the longitudinal direction to the opposite sides of the index surface 11a; A rotation shaft 30 extending laterally outward at a position spaced apart by a radius of a rotation trajectory of the movable beam body 10 of the support arm 20; Is fixed to the edge of the river to be disposed on the side of the support arm 20, rotatably supporting the rotating shaft 30 at a position separated in the upward direction by the rotation radius (R) of the movable beam body (10) A support block 40 having a bearing member; First and second hydraulic cylinders (50, 60) to pivot the movable shaft body (10) fixed to the rotary shaft (30) by pivoting the rotary shaft (30) while stretching operation; A hydraulic pump 250 for supplying hydraulic oil to the first and second hydraulic cylinders 50 and 60 to expand and operate the first and second hydraulic cylinders 50 and 60; And an equal flow rate of the hydraulic fluid discharged from the hydraulic pump 250 to the first and second hydraulic cylinders 50 and 60 so that the first and second hydraulic cylinders 50 and 60 are extended and operated with the same length. In the swing-type movable beam apparatus including a flow rate equalization mechanism provided by
The hydraulic equal distribution mechanism,
A first chamber 201 and a second chamber 202 coaxially disposed with the same volume and having the same diameter, and a first piston head 203 and a second chamber installed inside the first chamber 201 . Distribution having a second piston head 204 installed inside 202 and one connecting rod 205 connected to each other so that the first piston head 203 and the second piston head 204 work together. Cylinder 210; And
Each of the rising chambers 201A and 202A of the first chamber 201 and the second chamber 202 may be divided into large diameter chambers 51 and 61 or drain tanks of the first and second hydraulic cylinders 50 and 60 . 240 and the lower chambers 201B and 202B of the first chamber 201 and the second chamber 202 are connected to the hydraulic pump 25 or the first and second hydraulic cylinders 50 and 60. And first and second switching valves (211, 212) selectively connected to the small diameter chambers (52, 62) of the swing movable beam device. The method of claim 1,
The movable beam body 10 includes a plurality of support frames 13 formed between the front sidewall 11 and the front sidewall 11 having the exponential surface 11a on the outer surface by molding a metal plate into a curved shape. And a rear sidewall (12) having the base surface (12a) formed on the outer side by being coupled to the rear side of the front sidewall (11) through a). delete The method of claim 1,
The movable beam body 10 is the highest position in which the index surface 11a is erected upstream by the expansion and contraction operation of the first hydraulic cylinder 50 and the second hydraulic cylinder 60, and the index surface 11a. A pivoting movable beam device, characterized in that the base surface (12a) pivots between the lowest positions coincident with the bottom surface of the bottom structure (3) so that the base surface (12a) is coincident with the upstream side lower image. 5. The method of claim 4,
The movable beam body (10) is a pivotable movable beam apparatus, characterized in that the lower end of the index surface (11a) is pivotable to the position to form a flow path between the bottom structure by turning upward from the bottom.

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