KR20170122070A - Position Control Device An Hydraulic Gate for Waterway - Google Patents

Abstract

The present invention relates to a sluice position control device for a hydraulic sluice. The sluice position control device for a hydraulic sluice comprises: a hydraulic motor (10) extended from an oil tank (7) and connected to a pipe (9) connected to a direction control valve (8), wherein a pulley (15) is assembled to a shaft of the hydraulic motor (10); a first limit switch (34) fixed to a housing (43) to control an upper limit stop position of an operation unit (33) and applying an upper limit closing position signal of a sluice (3) to a control box (39); a second limit switch (36) fixed to the housing (43) to control a lower limit stop position of the operation unit (33) and applying a horizontal opening position signal of the sluice (3) to the control box (39); the control box (39) numerically calculating an encoding pulse signal to a moment in which an electric signal applied from the second limit switch (36) is recognized and transmitting the calculated encoding pulse signal to a computer monitor through wire (41); and a computer monitor (42) displaying the upper limit stop position and the lower limit stop position of the operation unit (33) as a number or a letter. The sluice position control device for a hydraulic sluice can accurately and surely control and check the upper limit closing position of the sluice and a horizontal opening position without damage or a loss of a component in comparison with an existing sluice control technique.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a hydraulic control apparatus,

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BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hydrometric position controller of a hydraulic conduit.

The hydraulic conduit 3 is installed in the water channel as shown in Figs. 4 and 5, and its lower end is fixed by the hinge axis A. The lower end portion of the hydraulic cylinder 1 used to open and close the conduction gate 3 is fixed by the hinge axis B and the piston rod 2 is fixed to the rear surface of the conduction gate 3 by a fixing pin. Therefore, when the conduction gate 3 is in the upper-limit closed position by the operation of the hydraulic cylinder 1, the water in the water channel is completely opened and can not flow and overflows over the upper end of the conduction gate 3, , The water channel is completely opened and the water in the water channel is released quickly.

However, since the control room for controlling the conduction gate 3 is located at a great distance from the waterway, the manager can not exactly know whether or not the conduit gate 3 is staying in the upper-limit closed position or the hor- izontal opening position, The piston rod 2 has to depend on the operation of the hydraulic device which exits the hydraulic cylinder 1 or performs the in-situ operation. That is, when a strong foreign matter is caught in the gap between the conduction gate (3) and the water channel when the conduction gate (3) is opened or when the conduction gate (3) is opened horizontally, The oil pressure applied to the hydraulic cylinder (1) is almost the same as when the conduction gate (3) is normally closed, even when the conduction gate (3) is not completely closed or horizontally opened, The normal operation signal is applied to the hydraulic control unit installed in the control room even when the gate 3 is not completely closed or horizontally opened.

Therefore, the worker had to visit the waterway to check whether the conduit gate (3) was normally operated. This operation is very troublesome, requires a lot of personnel, takes a long time, Due to the inaccurate closing and opening in time, the release of unnecessary water or inaccurate indexes caused various damages.

Accordingly, as shown in FIGS. 4 and 5, means for indirectly checking the opening or opening state of the conduit water gate 3 is used by checking the water level of the water in the waterway by installing the water level sensor 4 on the waterway There is a problem in that it is more inaccurate than the conventional method and that a hard foreign matter flowing along the water is impacted, causing frequent breakage and failure, which is inferior in efficiency and economical efficiency.

Proximity sensors 5 and 6 are provided on the wall corresponding to the upper closed position and the horizontal open position of the conduction gate 3 so as to open or close the conduction gate 3 in the control room However, there is also a problem in that a hard foreign material flowing along the water impacts the sensor, causing a high failure rate of the sensor, and causing malfunction due to adhesion of foreign matter, water, moss, and the like.

Among the prior art documents related to the present invention, in the case of Patent Registration No. 0989898, two hydraulic cylinders are used for operating the hydrants which are opened and closed in the upper and lower directions, and sensors for measuring the moving positions of these hydraulic cylinders are provided. It is equipped with a flow control valve that regulates the supply, so that the hydraulic pressure supplied to the two hydraulic cylinders can be individually controlled. If the gate can not be raised or lowered smoothly by the water gate, The technology for controlling the flow rate supply is completely different from the present invention and, as a whole, corresponds to a technology different from the present invention.

Next, referring to Patent Registration No. 0777388, a winch drum with a wire wound is also used to operate a gate that is opened and closed in the up and down direction. The number of revolutions of the winch drum is measured by a counter and converted into an electric signal, A technique of measuring the number of revolutions of the winch drum by a counter and converting the number of revolutions of the winch drum into an electric signal is similar to the present invention, And the two limit switches are controlled at the same time, and the number of revolutions of the shaft of the hydraulic motor is combined with the operation signal of the limit switch to check the opening state of the conduction water.

And in case of the patent registration No. 0521250, a limit switch is installed on the upper and lower sides of the gate door to operate the gate opening and closing up and down. When the gate is operated up and down, the torque generated by the drive shaft of the power generating section In order to prevent the breakage of the device by turning off the power supply or reversing the direction of advance of the gate when an excessive load is generated in the drive shaft, the use of the two limit switches is compared with the present invention But it is clear that the purpose of use is different, and that the overall structure is distinctly different.

Lastly, as disclosed in the publication No. 10-2009-0128143, this is a technique for driving the motor in real time using a water level sensor and checking the opening / closing state of the conduit water as described above, but the installation position of the water level sensor is shown in the drawing We have already pointed out the problems and disadvantages of the water level sensor, which is an unclear technology.

1. Patent Registration No. 0989898

2. Patent registration No. 0777388

3. Patent registration No. 0521250

4. Publication No. 10-2009-0128143

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a hydrometalline position control apparatus for a hydraulic type conduit which has excellent durability and high reliability of technology while pursuing a technology different from the above-described prior art.

The present invention for solving the above-mentioned problems is constituted as follows.

A hydraulic motor 10 connected to a conduit 9 extending from the oil tank 7 and leading to the directional control valve 8 and having a pulley 15 mounted on the shaft;

A shaft 18 supported by the jib bearings 17 and 21 assembled in the housing 43 and having two pulleys 19 and 20 and a worm 23 assembled;

A worm gear 24 assembled to the gear box 22 fixed to the housing 43 and engaged with the worm 23 of the shaft 18 and fixed to the pulley 25 at one side;

An encoder 26 assembled to the housing 43 and having a pulley 27 fixed thereto;

A shaft 29 supported by the jib bearings 28 and 38 assembled in the housing 43 and having the pulley 31 fixed to the upper side and the screw 30 at the lower portion of the pulley 31;

(33) assembled to the screw (30) of the shaft (29) and linearly moving up and down by the rotation of the shaft (29);

A first limit switch 34 which is fixed to the housing 43 and controls the upper limit closing position signal of the conduction gate 3 to the control box 39 to control the upper limit stop position of the operation table 33, A second limit switch (36) fixed to the housing (43) for controlling the lower limit stop position of the conduit (33) and applying a horizontal open position signal of the conduit gate (3) to the control box (39);

A belt 16 connecting the pulley 15 of the hydraulic motor 10 and the pulley 19 of the shaft 18;

A belt (not shown) for connecting the pulley 27 of the encoder 26 and the pulley 25 of the worm gear 24 to cause the encoder 26 to encode the forward or reverse rotation number of the pulley 15 of the hydraulic motor 10 45);

When the shaft of the hydraulic motor 10 rotates in the forward direction by connecting the pulley 20 of the shaft 18 and the pulley 31 of the shaft 29 and the operating rod 33 rises to move the first limit switch 34, A belt 32 for controlling the second limit switch 36 so that the operating rod 33 descends when the axis of the hydraulic motor 10 rotates in the reverse direction;

35 and 37 extending from the encoder 26 and the first limit switch 34 and the second limit switch 36 are connected to each other and the encoder pulses 35 and 35 corresponding to the forward rotation number of the hydraulic motor 10 are connected, The encoder pulse signal from the first limit switch 34 controlled by the rising of the operating band 33 during the recognition of the signal is calculated numerically, and the reverse direction of the hydraulic motor 10 The encoder pulse signal from the second limit switch 36, which is controlled by the falling of the operating band 33 during recognition of the encoding pulse signal according to the number of rotations, 41) to the computer monitor (42);

And a computer monitor 42 which is connected to the control box 39 via a wire 41 and whose upper limit stop position and lower limit stop position of the operation unit 33 are indicated by numbers or letters. Let's do it.

The present invention can completely eliminate the damage or loss of the apparatus or parts compared with the prior art documents and conventional conduit hydrological control technology, and adopts the simplest and durable structure, so that there is a possibility of occurrence of failure or malfunction It is possible to control the conduction gate which is always accurate and reliable more than 99%, and furthermore, it is possible to finely control the conduction gate, so that the conduction gate can be controlled most effectively.

1 is a systematic diagram of the present invention.
Fig. 2 is a partially enlarged view based on Fig. 1 (operating vs. raised). Fig.
3 is a reference view showing a state in which the operation unit is lowered based on Fig.
FIG. 4 and FIG. 5 are reference views showing the manner of controlling the closing and opening of the conduit in accordance with the related art.

EMBODIMENTS OF THE INVENTION [

Embodiments of the present invention will now be described with reference to the accompanying drawings.

1, the hydraulic motor 10 of the present invention is connected to a conduit 9 extending from an oil tank 7 to a directional control valve 8, and a pulley 15 is mounted on a shaft. And when the oil passes through the shaft 10, the shaft rotates to rotate the pulley 15.

The shaft 18 for transmitting the rotational speed of the shaft of the hydraulic motor 10 to the encoder 26 is supported by the jib bearings 17 and 21 assembled to the housing 43 as shown in Fig. The diameter of the pulley 19 is twice that of the diameter of the pulley 20 and the diameter of the pulley 20 is smaller than that of the hydraulic motor 10 It is preferable that the diameter of the pulley 15 and the diameter of the pulley 31 of the shaft 29 to be described later be equal to each other but this is not necessarily the case and it is natural that the diameter of the pulley may vary depending on the situation.

Next, a worm gear 24, which is assembled to the gear box 22 fixed to the housing 43 and meshed with the worm 23 of the shaft 18 and to which the pulley 25 is fixed at one side, 22 is provided with a fixed encoder 26 holding a pulley 27. [

The shaft 29 for linearly moving the operation table 33 up and down by the driving force of the hydraulic motor 10 is supported by the jib bearings 28 and 38 assembled to the housing 43, The pulley 31 is fixed and the screw 30 is formed on the lower part of the pulley 31 so that the operating rod 33 is assembled to the screw 30 as shown in the figure, ), It is not shown in the drawings because it is intended to perform a linear movement through a known structure such as a rail or a guide guided in the rail.

The housing 43 is provided with a first limit switch 32 for controlling the upper limit stop position of the operation pedestal 33 and for applying the upper limit close position signal of the conductive floodgate 3 to the control box 39 immediately after the operation pedestal 33 is contacted, Which controls the lower limit stop position of the operation pedestal 33 and applies the horizontal open position signal of the conduit gate 3 to the control box 39 as soon as the operation pedestal 33 is contacted, The limit switch 36 is provided so that the position of the first limit switch 34 and the second limit switch 36 can be adjusted so that the conduit gate 3 can be closed and opened precisely. Do.

The belt 16 connecting the pulley 15 of the hydraulic motor 10 and the pulley 19 of the shaft 18 is assembled and the pulley 27 of the encoder 26 and the pulley of the worm gear 24 25 to assemble the encoder 26 to encode the forward or reverse rotation number of the pulley 15 of the hydraulic motor 10. [

The belt 32 is assembled to the pulley 20 of the shaft 18 and the pulley 31 of the shaft 29. When the shaft of the hydraulic motor 10 rotates in the normal direction, 1 limit switch 34. When the axis of the hydraulic motor 10 rotates in the opposite direction, the operating rod 33 is lowered to control the second limit switch 36. [

Next, the electric wires 40, 35 and 37 extending from the encoder 26, the first limit switch 34 and the second limit switch 36 are connected to each other, Calculates the encoding pulse signal from the first limit switch 34 to the moment when it recognizes the electric signal applied from the controlled first limit switch 34 due to the rise of the operation band 33 while recognizing the encoded pulse signal, The encoder pulse signal from the second limit switch 36, which is controlled due to the fall of the operation band 33 during recognition of the encoded pulse signal according to the reverse rotation number of the first limit switch 36, And a control box 39 for transmitting the electric power to the computer monitor 42 through the electric wire 41.

Finally, the computer monitor 42 is connected to the control box 39 and the electric wire 41, and the upper limit stop position and the lower limit stop position of the operation unit 33 are indicated by numbers or letters.

The operation of the present invention as described above will now be described.

1, the hydraulic pump (not shown) is actuated so that the oil in the oil tank 7 flows through the pipeline 9 through the hydraulic motor 10 and then through the pipeline 11 to the directional control valve 8 and the oil that has passed through the directional control valve 8 enters the lower side of the hydraulic cylinder 1 via the pipeline 12 to raise the piston rod 2, The oil passing through the hydraulic motor 10 rotates the shaft of the hydraulic motor 10 in the normal direction and the pulley 15 fixed to the shaft rotates and the shaft 16 is rotated through the belt 16. [ The worm 23 rotates and the worm gear 24 engaged with the worm 23 rotates and the pulley 25 fixed to the worm gear 24 rotates to rotate the belt 45 to rotate the pulley 27 of the encoder 26 so that the encoder 26 encodes the rotation number of the shaft of the hydraulic motor 10 And the pulse signal encoded through the wire 40 is transmitted to the control box 39. The operation circuit of the control box 39 continues to operate the pulse signal of the encoder 26. [

At the same time, as the pulley 20 fixed to the shaft 18 rotates, the pulley 31 of the shaft 29 rotates in the forward direction through the belt 32, so that the operation table 33 assembled to the screw 30 And then the operation lever 33 is stopped while the first limit switch 34 is controlled.

The first limit switch 34 instantly generates the electric signal and outputs the electric signal to the control box 39 via the electric wire 35. The first limit switch 34 is controlled by the operation unit 33, And the computing device of the control box 39 compares the encoder pulse signal up to the moment when the electric signal received from the first limit switch 34 is received and outputs the numerical value or the value to the computer monitor 42 through the electric wire 41 Characters.

That is, the upper limit closing position of the conduction gate 3 is displayed numerically on the computer monitor 42, and at this time, it may be indicated through the character that the gate is in the upper normal position.

Next, when the conduction gate 3 is to be converted into the horizontal opening position as shown in FIG. 5 to discharge the water in the water channel at a time, the oil in the oil tank 7 is moved in the direction The oil injected into the control valve 8 and the oil passing through the directional control valve 8 enters the upper portion of the hydraulic cylinder 1 through the pipe line 13 so that the piston rod 2 returns to the original position in the hydraulic cylinder 1 The oil in the hydraulic cylinder 1 enters the conduit 11 through the conduit 12 via the directional control valve 8 and flows into the conduit 11 through the conduit 12, The oil passing through the oil passage 11 is reduced to the oil tank 7 via the hydraulic motor 10 and the pipeline 9.

At this time, the axis of the hydraulic motor 10 rotates in the reverse direction, and the pulley 15 fixed to the shaft of the hydraulic motor 10 also rotates in the reverse direction, so that, in contrast to the above description of the forward action, The encoder 29 rotates in the reverse direction of the mode so that the operating band 33 starts to descend and the encoder 26 encodes the reverse rotation number of the axis of the hydraulic motor 10 and applies it to the control box 39 do.

Subsequently, the operation unit 33 descends to control the second limit switch 36 and stops. The second limit switch 36 transmits the electric signal to the control box 39, and the calculation unit of the control box 39 The encoder pulse signals up to the moment when the electric signal applied from the second limit switch 36 is obtained are compared and displayed on the computer monitor 42 in numerical or character form through the electric wire 41.

That is, the horizontal opening position of the conduction gate 3 is displayed numerically on the computer monitor 42, and at this time, it is possible to simultaneously indicate that the gate is in the horizontal normal position.

Therefore, the administrator can operate the hydraulic system so that the upper limit closing position and the horizontal opening position of the conduction gate 3 can be visually recognized through the computer monitor 42. If the conduction gate 3 is completely When it is closed or not fully opened, it is obvious that the normal numerical value or character of the upper closed position and the normal numerical value or character of the horizontal open position are not displayed on the computer monitor (42) I can take it.

In the meantime, according to the present invention, when the numerical value of the upper limit closing position and the numerical value of the horizontal opening position are "100" and " The conduction gate 3 may be opened only by half when the operation of the hydraulic system is stopped when the numerical value displayed on the computer monitor 42 is "300 ", so that the conduit gate 3 is closed There is also an advantage in that the angle of opening can be very finely and simply adjusted.

In the present invention, the electric wire 41 connecting the control box 39 and the computer monitor 42 may be omitted and a wireless signal may be used, and the above-described pulleys and belts may be replaced by chain gears, chains, It is natural.

1: Hydraulic cylinder 3: Conduction gate 4: Level sensor 5, 6: Proximity sensor
7: Oil tank 8: Directional control valve 10: Hydraulic motor 18: Axis
22: gear box 26: encoder 29: shaft 30: screw 33:
34: first limit switch 36: second limit switch 39: control box
42: Computer Monitor

Claims (1)

A hydraulic motor 10 connected to a conduit 9 extending from the oil tank 7 and leading to the directional control valve 8 and having a pulley 15 mounted on the shaft;
A shaft 18 supported by a jib air ring 17 (21) assembled to the housing 43 and having two pulleys 19, 20 and a worm 23 assembled;
A worm gear 24 assembled to the gear box 22 fixed to the housing 43 and engaged with the worm 23 of the shaft 18 and fixed to the pulley 25 at one side;
An encoder 26 assembled to the housing 43 and having a pulley 27 fixed thereto;
A shaft 29 supported by the jib bearings 28 and 38 assembled in the housing 43 and having the pulley 31 fixed to the upper side and the screw 30 at the lower portion of the pulley 31;
(33) assembled to the screw (30) of the shaft (29) and linearly moving up and down by the rotation of the shaft (29);
A first limit switch 34 which is fixed to the housing 43 and controls the upper limit closing position signal of the conduction gate 3 to the control box 39 to control the upper limit stop position of the operation table 33, A second limit switch (36) fixed to the housing (43) for controlling the lower limit stop position of the conduit (33) and applying a horizontal open position signal of the conduit gate (3) to the control box (39);
A belt 16 connecting the pulley 15 of the hydraulic motor 10 and the pulley 19 of the shaft 18;
A belt (not shown) for connecting the pulley 27 of the encoder 26 and the pulley 25 of the worm gear 24 to cause the encoder 26 to encode the forward or reverse rotation number of the pulley 15 of the hydraulic motor 10 45);
When the shaft of the hydraulic motor 10 rotates in the forward direction by connecting the pulley 20 of the shaft 18 and the poly 31 of the shaft 29 and the operating rod 33 is moved upward to rotate the first limit switch 34, A belt 32 for controlling the second limit switch 36 so that the operating rod 33 descends when the axis of the hydraulic motor 10 rotates in the reverse direction;
35 and 37 extending from the encoder 26 and the first limit switch 34 and the second limit switch 36 are connected to each other and the encoder pulses 35 and 35 corresponding to the forward rotation number of the hydraulic motor 10 are connected, The encoder pulse signal from the first limit switch 34 controlled by the rising of the operating band 33 during the recognition of the signal is calculated numerically, and the reverse direction of the hydraulic motor 10 The encode pulse signal from the second limit switch 36 controlled by the descent of the operation band 33 during recognition of the encoded fill signal according to the number of revolutions to the moment when it recognizes the electric signal applied thereto is numerically calculated, 41) to the computer monitor (42);
Characterized in that the computer monitor (42) is connected to the control box (39) by a wire (41) and the upper limit stop position and the lower limit stop position of the operation table (33) Control device.

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