KR102325195B1 - Emergency shut-off type floodgate winch including instant-type overload detection circuit and control method - Google Patents

Abstract

The present invention relates to an emergency shutoff type sluice hoist including an immediately adapted detection circuit for overload, which can prevent unnecessary wear and damage of a part, and to a control method thereof. The emergency shutoff type sluice hoist comprises: a body unit (100) including a first driving motor (110); a main reducer (200) for rotating a driving shaft (220); an auxiliary reducer (300); a clutch (400) provided on the body unit (100); a timer (500); a control module (600) for controlling a clutch (400) and a first driving motor (110); and a rotation detecting means (700).

Description

Emergency shut-off type floodgate winch including instant-type overload detection circuit and control method

The present invention relates to an emergency shut-off type sluice gate which is configured to close a waterway by descending a sluice gate by its own weight. In the process of moving the sluice gate up and down using the power of the drive motor for the purpose of inducing closure, if the descending sluice gate is caught in the sediment and overload occurs, it is immediately detected and the ascending and descending operations of the next cycle are performed. By doing so, it relates to an emergency shut-off type sluice gate lifter including an overload response detection circuit configured to prevent unnecessary wear and damage of related parts due to the continuous descending operation of the sluice gate and a control method therefor.

Water resource management includes management of reservoirs and drainage basins (drainage pump stations) as part of flood protection measures to prevent damage caused by flooding or backflow of rivers and damage caused by collapse of levees, and for agricultural use by trapping water from reservoirs, etc. It includes water management and management to prevent flooding of agricultural land by blocking the backflow of rivers. In particular, it can be said that water resource management is very important in Korea, where there are many agricultural land and water resources are not abundant.

A sluice gate, which plays a representative role in the management of rivers and reservoirs for water resource management, is a very important facility to use water resources for various types of water in dams, reservoirs, rivers, shorelines and waterways, or to prepare for natural disasters such as floods. .

Such a sluice gate can be divided into a lifting-type sluice gate and a conductive sluice gate according to the opening and closing method.

The salvage-type sluice gate is a sluice gate of a type in which a sluice gate moves up and down to open and close a water channel, and the inverted sluice gate is a sluice gate of a method in which the sluice gate rotates around a rotational axis to fall over or stand up while opening and closing the water channel.

On the other hand, the lifting type sluice gate has a structure that can move up and down, and the sluice gate installed on the door frame moves up and down by a lifter to open and close the waterway, and the lifter is a hoist of various driving methods such as manual, motor driven, hydraulic driven, etc. is being used

In constructing such a lifting-type sluice gate, it is possible to close the waterway even when the normal operation of the hoist is impossible by allowing the waterway to be closed while the sluice gate descends by its own weight, and it is possible to reduce the energy required to lower the sluice gate. An emergency shut-off type sluice lift is being used.

In the case of an emergency shut-off type sluice lift with self-weight lowering method, the process of confirming whether the sluice gate is completely closed is required because there are cases where the sluice gate cannot be completely closed due to the sediment and foreign substances deposited on the bottom of the waterway. Disclosed is a sluice lifter capable of confirming whether the sluice gate is completely closed and inducing the complete closure of the sluice gate even when foreign substances are deposited on the bottom of the sluice gate.

1 shows a front structural diagram of the sluice gate lifter according to Patent Document 1.

In the sluice gate lifter according to Patent Document 1, the power generated in the main body part 10 is transmitted to the drive shaft 30 through the main reducer 20, the drive shaft 30 rotates, and the rack bar by the rotation of the drive shaft 30 (41) is configured to move the sluice gate 40 up and down while moving, and a display unit 50 for displaying full open and full close of the sluice gate, and a sluice gate to check the descent time and a timer unit (not shown).

The main body 10 includes a first driving unit that generates power to move the rack bar 41, a clutch that selectively blocks power generated in the first driving unit and transmitted to the rack bar 41, and the clutch; and a second driving part that operates the sluice gate, and when the clutch cuts off the power of the first driving part, the sluice gate may descend by its own weight to close the waterway.

The display unit 50 rotates in conjunction with the drive shaft and indicates the degree of opening/closing of the sluice gate while pointing to a point on the display panel; It includes a limit switch operated by

When the sluice gate lifter according to Patent Document 1 configured as described above is operated to be spaced apart from the worm gear so that the clutch cuts off the power of the first driving unit, the sluice gate descends by its own weight to close the water passage.

On the other hand, the timer unit checks the descent time of the sluice gate, and if the fully closed limit switch provided in the display unit does not operate until the time checked by the timer unit reaches a preset time, it is determined that the sluice gate is not completely closed. .

In this way, when the sluice gate is not completely closed, the clutch is coupled to the worm gear so that the sluice gate can be repeatedly operated up and down by the first driving unit. of sediment removal and complete closure of the sluice gate.

In the process of inducing complete closure of the sluice gate through forcible vertical movement of the sluice gate, if the sluice gate is caught in the sediment at the bottom of the waterway, Patent Document 1 maintains the sluice gate descending state for a preset time. In the process, a slip phenomenon occurs between the brake pad and the sprocket provided in the overload prevention device, causing unnecessary wear of the brake pad. There is a problem in that it takes a lot of time to repeat the up and down motion.

Registered Patent Publication No. 10-1642040 (2016.07.29. Announcement)

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide an overload response detection circuit that prevents the brake pad provided in the overload prevention device from being unnecessarily worn in the process of repeating the vertical movement of the sluice gate. It is to provide an emergency shutoff type sluice lift and a control method therefor.

Another object of the present invention is to provide an emergency shutoff type sluice gate lifter including an overload response detection circuit configured to detect whether the drive shaft rotates while the proximity sensor provided to detect the rotation of the drive shaft operates only when necessary, and a method for controlling the same. .

The present invention for achieving the object as described above and for eliminating the drawbacks of the prior art includes: a main body including a first driving motor for generating power for vertical movement of a sluice gate; a main reducer that receives power from the main body and transmits the transmitted power to the drive shaft through one or more shafts and gears to rotate the drive shaft; an auxiliary reducer connected to the drive shaft to receive power from the main reducer, and transmit the transmitted power to the sluice bar through one or more shafts and gears to enable vertical movement of the sluice gate; a clutch provided in the main body to switch between a disconnect mode for cutting off power generated from the first driving motor and transmitted to an output shaft and a connection mode for connecting power; A timer that measures the time required for the descent of the sluice gate; The descent time required for the sluice gate, which is descended by its own weight by the clutch switched to the disconnect mode, is compared with the pre-entered standard descent time. If the descent time measured by the timer is longer than the standard descent time, switch the clutch to the connected mode and a control module for controlling the clutch and the first driving motor to repeatedly drive the first driving motor in forward and reverse directions so that the rising and falling of the sluice gate are repeated; and a plurality of holes installed on the input shaft and extending in the circumferential direction are formed to be spaced apart from each other by a predetermined interval in the circumferential direction. a rotating plate made of; and a proximity sensor installed inside the main reducer to detect whether the rotating plate rotates or not so as to be located in a position corresponding to the hole in the vicinity of the rotating plate; In the process, when the sluice gate is stopped due to sediment in the waterway, the rotation detecting means immediately detects that the rotation of the shaft is stopped and induces the sluice gate to rise for a specified time; includes, a preset height in the process of the sluice gate descending by its own weight a step of receiving and storing, by a control module provided in the sluice gate, the reference descent time, which is the time until moving to the fully closed position, from the sluice gate (S10); A timer provided in the sluice gate lifter measures the required descent time in real time from when the sluice gate descends by its own weight and passes the preset height, and the control module receives the measured descent time and descent time and reference descent time comparing them (S20); if the descent time is equal to or longer than the reference descent time, forcibly raising and lowering the sluice gate using the power of the motor, and repeating the process of ascent and descent a preset number of times (S30); When the sluice gate descends to the fully closed position in the process of repeating ascent and descent, terminating the operation of the sluice gate lifter (S40); When the lowering operation of the descending sluice gate stops while the sluice gate repeatedly ascends and descends, the rotation detecting means provided in the sluice lifter detects the axis at which the rotation is stopped and transmits an overload signal to the control module, and the control module sends the sluice gate stopping the descending operation and controlling the ascending and descending to repeat the remaining number of times (S50); And if the complete closure of the sluice gate is not detected even though the sluice gate has repeatedly ascended and descended the specified number of times, terminating the operation of the sluice gate lifter and generating a warning signal (S60); It provides an emergency shut-off type sluice winch comprising an overload response detection circuit, characterized in that.

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In addition, the present invention includes the steps of receiving and storing, by the control module provided in the sluice gate, the reference descent time, which is the time until the sluice gate moves from the preset height to the fully closed position, in the process of descending by its own weight (S10); A timer provided in the sluice gate lifter measures the required descent time in real time from when the sluice gate descends by its own weight and passes the preset height, and the control module receives the measured descent time and descent time and reference descent time comparing them (S20); if the descent time is equal to or longer than the reference descent time, forcibly raising and lowering the sluice gate using the power of the motor, and repeating the process of ascent and descent a preset number of times (S30); When the sluice gate descends to the fully closed position in the process of repeating ascent and descent, terminating the operation of the sluice gate lifter (S40); When the lowering operation of the descending sluice gate stops while the sluice gate repeatedly ascends and descends, the rotation detecting means provided in the sluice lifter detects the axis at which the rotation is stopped and transmits an overload signal to the control module, and the control module sends the sluice gate stopping the descending operation and controlling the ascending and descending to repeat the remaining number of times (S50); and if the complete closure of the sluice gate is not detected even though the sluice gate has repeatedly ascended and descended the specified number of times, terminating the operation of the sluice gate lifter and generating a warning signal (S60); , A rotating plate which is connected to the output shaft of the main body and is installed on the input shaft provided on the main reducer to receive power from the main reducer and has a plurality of holes extending in the circumferential direction formed to be spaced apart from each other by a predetermined distance in the circumferential direction, and located adjacent to the rotating plate, but It is installed inside the main reducer so as to be located at a location corresponding to the hole and consists of a proximity sensor that detects whether the rotating plate is rotated, and the clutch provided in the sluice winch is switched to the connection mode and the sluice gate is forcibly lowered by the power of the motor. It is activated only in the case of providing a control method of an emergency shut-off type sluice gate lifter including an overload response detection circuit, characterized in that it is controlled to detect whether the shaft rotates.

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According to the present invention having the above features, when the sluice gate is caught in the sediment on the waterway floor in the process of descending by the power of the first driving motor, not by its own weight, and the descending operation is restricted, the rotation detecting means detects it immediately and can By allowing the gate to move up and down again, unnecessary wear and damage to related parts due to the continuous lowering of the sluice can be prevented.

In particular, it is possible to significantly reduce the abrasion of the brake pad of the overload prevention device provided on the output shaft of the main body, thereby significantly reducing the manpower, time, and cost required for maintenance of the overload prevention device.

In addition, since the rotation detection means is activated only when the sluice gate descends by power and is configured to detect the rotation of the input shaft, unnecessary waste of energy due to the constant driving of the proximity sensor constituting the rotation detection means is prevented, and the proximity sensor It can extend the service life and reduce maintenance costs.

1 is a front structural view of a conventional sluice gate lifter;
2 is a front structural view of the sluice gate lifter according to the present invention;
3 is a perspective view schematically showing the operating structure of the main body according to the present invention;
4 is a cross-sectional view of an overload protection device applied to the present invention;
5 is a plan view showing the structures of the main reducer and the auxiliary reducer according to the present invention;
6 is an exemplary view showing a state in which the first, second, and third limit switches according to the present invention are installed;
7 is an exemplary view showing a state in which the fourth and fifth limit switches according to the present invention are installed;
8 is an exemplary view showing a state in which an indicator composed of a display hand and a display panel is connected to a drive shaft;
9 is a detailed view showing a state in which the rotation detecting means according to the present invention is installed in the main reducer;
10 is a side view of the rotating plate according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Figure 2 is a front structural diagram of the sluice winch according to the present invention, Figure 3 is a perspective view schematically showing the operating structure of the main body according to the present invention, Figure 4 is a cross-sectional view of the overload protection device applied to the present invention, Figure 5 is this view A plan view showing the structures of the main reducer and the auxiliary reducer according to the present invention, FIG. 6 is an exemplary view showing the state in which the first, second, and third limit switches according to the present invention are installed, and FIG. 7 is the fourth and fifth according to the present invention 8 is an exemplary view showing a state in which the limit switch is installed, FIG. 8 is an exemplary view showing a state in which an indicator composed of a display needle and a display plate is connected to the drive shaft, and FIG. In detail, FIG. 10 shows a side view of the rotating plate according to the present invention.

The emergency shutoff type sluice gate lifter including an overload response detection circuit according to a preferred embodiment of the present invention is designed to detect and respond immediately when an overload occurs while the sluice gate descending by the power of the motor is caught in the sediment and stopped, The main body part 100, the main reducer 200, the auxiliary reducer 300, the clutch 400, the timer 500, the control module 600, and consists of including a rotation detecting means (700).

The main body 100 generates power for vertical movement of the sluice gate, and includes a first driving motor 110 , a worm reducer 120 , and an output shaft 130 , and a first driving motor 110 . Power generated by the operation is transmitted to the output shaft 130 through the worm reducer 120 so that the output shaft 130 rotates.

On the other hand, the worm reducer 120 is composed of a worm 121 and a worm wheel 122, like a worm gear that is generally widely used, and the worm 121 is directly connected to the first driving motor 110 and a first driving motor ( The worm wheel 122, which rotates by the operation of 110 and rotates in engagement with the worm 121, is connected to the output shaft 130 and rotates the output shaft 130 while the worm wheel 122 rotates by the rotation of the worm 121. configured to do

Meanwhile, a sprocket 810 for transmitting power to the main reducer 200 is installed at the outer end of the output shaft 130 , and the sprocket 810 is installed on the output shaft 130 together with the overload prevention device 800 . do.

The overload prevention device 800 allows the sluice gate to slowly descend while the sluice gate descends by its own weight, and the lowering operation of the sluice gate is restricted by the sediment in the waterway, and when an overload occurs, the power of the main body 100 By preventing the transmission to the main reducer 200, the sprocket 810 located in the power transmission system and related parts such as the chain and rack bar are prevented from being damaged by overload, the sprocket 810 and the one-way clutch 820 ), a pressure plate 830 , an elastic support part 840 , and a fixing part 850 , a one-way clutch 820 is installed on one side of the sprocket 810 , and a brake pad 831 on the other side of the sprocket 810 . ), the pressure plate 830, the elastic support part 840, and the fixing part 850 are installed to be sequentially positioned.

On the other hand, since the overload prevention device 800 can be configured by using the overload prevention device disclosed in Korean Utility Model Registration No. 20-0272093 and Patent Registration No. 10-1642040 as it is, A detailed description will be omitted.

The main reducer 200 receives power from the main body part 100 and transmits it to the auxiliary reducer 300 , and an input shaft 210 that receives power from the main body part 100 and rotates, and the input shaft 210 . It is configured to include a driving shaft 220 that rotates by receiving the power of one or more shafts and gears.

Meanwhile, in FIG. 5 , one intermediate shaft 230 is installed between the input shaft 210 and the driving shaft 220 , and the input shaft 210 and the intermediate shaft 230 and the intermediate shaft 230 and the driving shaft 220 are The structure of the main reducer 200 is shown, which is connected to each other through a gear so that the power of the input shaft 210 is transmitted to the drive shaft 220 through the intermediate shaft 230 to rotate the drive shaft 220 .

On the other hand, the drive shaft 220 is configured to protrude to both sides of the main reducer 200 to be connected to the auxiliary reducer 300 located on both sides of the main reducer (200).

The input shaft 210 of the main reducer 200 configured as described above may be provided with a hand brake 240 and a foot brake 250 that allow an administrator to arbitrarily limit the rotation of the input shaft 210 .

The auxiliary reducer 300 transmits the power transmitted from the main reducer 200 to the leg bar 41 so that the leg bar 41 moves up and down, and the driving shaft ( A connecting shaft 310 coupled to 220 , and an operating shaft 320 coupled to the connecting shaft 310 and a gear to rotate together with the connecting shaft 310 , and rotation with the operating shaft 320 . It is installed on the operating shaft 320 so as to include a sprocket gear 330 engaged with the rec bar 41 .

According to the main body part 100, the main reducer 200, and the auxiliary reducer 300 as described above, the power generated by the operation of the first driving motor 110 provided in the body part 100 is the worm reducer 120. → Output shaft 130 → Input shaft 210 → Intermediate shaft 230 → Drive shaft 220 → Connection shaft 310 → It is transmitted to the rack bar 41 through the operation shaft 320 so that the sluice gate moves up and down. do.

The clutch 400 is installed in the body part 100 so as to be positioned between the worm reducer 120 and the output shaft 130, and cuts off the connection between the worm reducer 120 and the output shaft 130 to block the transmission of power. It is configured to be switched to a separation mode, which enables transmission of power by connecting the worm reducer 120 and the output shaft 130 .

More specifically, the clutch 400 includes a clutch body 410 coupled to or separated from the worm reducer 120 while being coupled to the output shaft 130 while moving toward or away from the worm reducer 120 , and the clutch. It consists of a moving mechanism 420 for moving the main body 410 and a clutch driving unit 430 for operating the moving mechanism 420 .

Meanwhile, the moving mechanism 420 includes a clutch guide 421 having a lower end inserted into the clutch guide groove 411 formed in the clutch body 410 and moving together with the clutch body 410 , and the clutch guide 421 . It may be composed of a first gear 422 coupled eccentrically, and a lever 423 installed on an upper portion of the first gear 422 .

The moving mechanism 420 moves the clutch body 410 while the clutch guide 421 moves by the rotation of the first gear 422 , and the administrator operates the lever 423 to the clutch body 410 . can be moved manually.

The clutch driving unit 430 includes a second driving motor 431 and an electric input shaft 432 connected to the second driving motor 431 through a bevel gear and rotated by the operation of the first driving motor 110 . and a second gear 433 installed on the electric input shaft 432 to rotate together with the electric input shaft 432 and coupled to the first gear 422 to rotate the first gear 422 .

Since the clutch 400 configured as described above can be configured using the automatic switching device disclosed in Korean Patent Publication No. 10-1535166 as it is, a more detailed description of the clutch 400 will be omitted.

The timer 500 measures the time required for the descent of the sluice gate.

On the other hand, the descent time required may be defined as the time from when the sluice gate descends by its own weight and passes a preset height to when it descends to the fully closed position, and the timer 500 determines when the sluice gate passes the preset height. Time is measured in real time.

Meanwhile, the preset height may be determined in a section of 30 cm to 40 cm before the fully closed position.

The control module 600 has a built-in control circuit for operating the sluice gate lifter according to the present invention, and receives and stores the reference descent time from the manager, and receives the actual descent time from the timer 500 . When the descent time measured by the timer 500 is compared with the standard descent time required, if the descent time is longer than the standard descent time, it is determined that the sluice gate is caught in the sediment and cannot descend to the fully closed position It includes a function of switching the 400 to the connection mode and repeatedly driving the first driving motor 110 in the forward and reverse directions for a specified number of times so that the sluice gate repeats rising and falling.

On the other hand, the first and second limit switches 910 and 920 for generating a signal when the sluice gate moves to the fully closed position and the fully open position, and the third limit switch 930 for generating a signal when the sluice gate descends past a preset height ) and the fourth and fifth limit switches 940 and 950 that generate a signal when the clutch 400 is switched to the disconnected mode and the connected mode may be further included.

The first limit switch 910 generates a signal when the sluice gate is lowered to the fully closed position, and may be installed to detect the movement of the drive shaft 220 to generate a signal.

That is, the first limit switch 910 is installed to generate a signal in response to the first cam 951 when the sluice gate is lowered to the fully closed position, and the first cam 951 is the driving shaft ( It is installed on the signal transmission shaft 950 connected to 220 , and is configured to rotate in conjunction with the driving shaft 220 .

Meanwhile, in FIGS. 6 and 8, a first signal transmission shaft 950a and a second signal transmission shaft 950b are formed, and the first signal transmission shaft 950a is coupled to the driving shaft 220 via a bevel gear. , the second signal transmission shaft 950b has a structure of the signal transmission shaft 950 configured to be coupled to the first signal transmission shaft 950a via another bevel gear, and the first cam 951 is installed on the second signal transmission shaft 950b and is configured to rotate in conjunction with the driving shaft 220 .

On the other hand, the bevel gear connecting the driving shaft 220 and the first signal transmission shaft 950a, and the first signal transmission shaft 950a and the second signal transmission shaft 950b sufficiently decelerates the power of the driving shaft 220 to obtain the first signal. It is preferable that the two signal transmission shafts 950 rotate only within a 360° range.

The second limit switch 920 is configured to generate a signal in response to the second cam 952 when the sluice gate rises to the fully open position.

Meanwhile, the second cam 952 is installed on the second signal transmission shaft 950b to rotate together with the second signal transmission shaft 950b, and a second limit switch is located adjacent to the second cam 952 . 920 is installed.

The third limit switch 930 is configured to generate a signal in response to the third cam 953 when the sluice gate passes a preset height.

Meanwhile, the third cam 953 is installed on the second signal transmission shaft 950b to rotate together with the second signal transmission shaft 950b, and a third limit switch is located adjacent to the third cam 953 . (930) is installed.

In addition, a display hand 961 is installed on the second signal transmission shaft 950b, and a display panel 962 indicating the state of the sluice gate according to the direction indicated by the display hand 961 is placed around the display hand 961 . can be installed.

The fourth limit switch 940 is configured to generate a signal when the clutch 400 is switched to the connected mode in response to the fourth cam 954 installed on the electric input shaft 432 constituting the clutch 400, The fifth limit switch 950 is configured to generate a signal when the clutch 400 is switched to the separation mode in response to the fifth cam 955 installed on the electric input shaft 432 .

Signals generated from the first, second, third, fourth, and fifth limit switches as described above are transmitted to the control module 600, and the control module 600 uses the transmitted signal to control the state of the sluice gate and the clutch 400. State information can be accurately acquired.

The rotation detecting means 700 detects whether any one of the shafts provided in the main reducer 200 and the auxiliary reducer 300 rotates. It is configured to detect the rotation of the input shaft 210 provided on the 200 .

In addition, the rotation detecting means 700 according to the preferred embodiment of the present invention is composed of a rotating plate 710 installed on the input shaft 210 and a proximity sensor 720 installed at a position adjacent to the rotating plate 710 .

The rotating plate 710 is fixedly installed on the input shaft 210 to rotate together with the input shaft 210, and a plurality of holes 711 passing through both sides and extending in the circumferential direction of the rotating plate 710 are formed in the circumferential direction. is formed to be dispersed at regular intervals.

The rotary plate 710 is configured by using the side cover of the foot brake 250 installed on the input shaft 210, so that the space inside the main reducer 200 can be used more efficiently.

The proximity sensor 720 is located adjacent to the rotating plate 710, but is fixedly installed inside the main reducer 200 so as to be positioned at a position corresponding to the hole 711 formed in the rotating plate 710.

As such, the proximity sensor 720 installed adjacent to the hole 711 of the rotating plate 710 is turned on due to the portion in which the hole 711 is formed and the portion in which the hole 711 is not formed while the rotating plate 710 rotates. The /off signal is repeatedly output.

Therefore, if the on/off signal is not repeatedly output from the proximity sensor 720 during the operation of the sluice gate, it may be determined that the operation of the sluice gate is stopped.

As such, the rotation detecting means 700 for detecting whether the input shaft 210 rotates is deactivated and does not operate in the disconnection mode of the clutch 400 , but is activated in the connection mode of the clutch 400 to rotate the input shaft 210 . made to detect whether

The rotation detecting means 700 according to the present invention detects immediately when the sluice gate is caught in the sediment and stops the descending operation in the process of the sluice gate descending due to the operation of the first driving motor 110, and stops the sluice gate descending operation or stops the sluice gate descending operation. In order to allow this to rise again, the proximity sensor 720 prevents unnecessary operation of the proximity sensor 720 as it is configured to detect whether the input shaft 210 rotates while operating limitedly only in the connection mode of the clutch 400 . It is possible to extend the life of the proximity sensor 720, it is possible to reduce the energy required for the operation of the proximity sensor 720, there is an advantage that can simplify the control algorithm.

The control method according to the present invention implemented by the emergency shut-off type sluice gate lifter including the overload response detection circuit according to the present invention configured as described above is when the sluice gate moves from a preset height to a fully closed position in the process of descending by its own weight. Step (S10) of receiving and storing the reference descent time, which is the time until the control module 600 provided in the sluice gate lifter; The timer 500 provided in the sluice gate lifter measures the required descent time in real time from when the sluice gate descends by its own weight and passes the preset height, and the control module 600 receives the measured descent time required for descent. comparing the time and the reference descent time (S20); if the descent time is equal to or longer than the reference descent time, forcibly raising and lowering the sluice gate using the power of the motor, and repeating the process of ascent and descent a preset number of times (S30); When the sluice gate descends to the fully closed position in the process of repeating ascent and descent, terminating the operation of the sluice gate lifter (S40); When the lowering operation of the descending sluice gate is stopped in the process of repeating the rising and falling of the sluice gate, the rotation detection means 700 provided in the sluice gate lifter detects this and transmits an overload occurrence signal to the control module 600, and the control module ( 600) is a step of controlling the sluice gate to stop the descending operation and repeat the ascending and descending for the remaining number of times (S50); and generating a warning signal when the complete closure of the sluice gate is not detected even though the sluice gate has repeatedly ascended and descended for a specified number of times (S60).

The step S10 is a process in which the control module 600 provided in the emergency shutoff type sluice lock receives and stores the reference descent time.

On the other hand, the standard descent time is the time required for the sluice gate to descend by its own weight from the preset height to the fully closed position, and is calculated or measured and determined in the process of designing, constructing, or maintaining the emergency shutoff type sluice winch. , may be previously input to the control module 600 and stored.

In step S20, the timer 500 measures the actual descent time of the sluice gate that descends to close the waterway, and the control module 600 compares the measured descent time and the reference descent time to close the sluice gate normally. This is the process of checking whether it descends to the position.

On the other hand, when the sluice gate descending by its own weight passes a preset height, the third limit switch 930 generates a signal in response to the third cam 953, and receives the signal generated from the third limit switch 930. From this time, the received control module 600 operates the timer 500 to measure the time required for descent of the sluice gate.

In addition, the control module 600 determines that the sluice gate is normally closed when a signal is generated from the first limit switch 910 before the falling time reaches the standard falling time, and the falling time is the standard falling time. If a signal is not generated from the first limit switch 910 until it is reached, it is determined that the sluice gate is caught in the sediment at the bottom of the waterway and cannot be closed normally.

The step S30 is a process performed when the descent time exceeds the reference descent time, that is, when the sluice gate descending due to its own weight fails to descend to the fully closed position. The sluice gate is driven by the power of the first driving motor 110 It consists of repeatedly ascending and descending, removing sediment from the waterway and inducing it to descend to a fully closed position.

As described above, the control module 600 operates the second drive motor 431 to set the clutch 400 to the connection mode so that the sluice gate can repeatedly ascend and descend by the power of the first drive motor 110 . will switch

As such, as the clutch 400 is switched to the connected mode, the fourth limit switch 940 generates a signal in response to the fourth cam 954 , and receives the signal generated from the fourth limit switch 940 . The module 600 supplies electricity to the proximity sensor 720 to activate the rotation detecting means 700 .

On the other hand, after the clutch 400 is switched to the connected mode, the control module 600 operates the first driving motor 110 so that the sluice gate rises for a preset time and then descends again. This process is performed until the sluice gate descends to the fully closed position or the sluice gate rising and falling operations are repeated a preset number of times.

In the step S40, when a signal is generated from the first limit switch 910 as the sluice gate descends to the fully closed position in the process of repeating the rising and falling of the sluice gate by the control according to the step S30, the control module 600 controls the sluice gate It consists in terminating the operation of the winding machine.

The step S50 is a process performed when the descending sluice gate is caught in the sediment of the waterway and the descent operation is stopped in the process of repeating the rising and falling of the sluice gate by the control according to the step S30. When the descending sluice gate is caught in the sediment, The rotation of the input shaft 210 provided in the main reducer 200 is also stopped, and the proximity sensor 720 of the rotation detecting means 700 detects this and generates a signal, and the signal generated from the proximity sensor 720 is transmitted. The received control module 600 controls the sluice gate to repeat ascent and descent for the remaining number of times.

As such, in the present invention, when the sluice gate is caught in sediment in the process of descending by the power of the first driving motor 110 and the sluice gate's lowering operation is stopped, it is immediately detected using the proximity sensor 720 and the first driving motor 110 ) is controlled in the reverse direction so that the next rise and fall is made, so that the overload prevention device 800 ) as the sprocket 810 and the brake pad 831 rub against each other, it is possible to prevent the brake pad 831 from being unnecessarily worn.

In step S60, if a signal is not generated from the first limit switch 910 even though the sluice gate has repeatedly ascended and descended the number of times set by the control according to the step S30, the sediment is It is determined that the removal is impossible, so the operation of the sluice lift is terminated, and a warning signal is generated using light or sound.

As described above, the emergency shut-off type sluice gate lifter including an overload response detection circuit according to the present invention and its control method according to the present invention, when the lowering operation of the sluice gate is restricted by the sediment in the waterway, the sediment through the forcible vertical movement of the sluice gate In inducing the removal of the sluice gate and the complete closure of the sluice gate, the unnecessary process of continuously lowering the sluice gate caught in the sediment for a set time is eliminated, thereby saving energy for the operation of the sluice lifter, and reducing the wear of the overload prevention device 800 . It is a very useful invention that can extend the service life of the overload protection device 800 .

The present invention is not limited to the specific preferred embodiments described above, and without departing from the gist of the present invention as claimed in the claims, anyone with ordinary skill in the art to which the invention pertains can make various modifications. Of course, such modifications are intended to be within the scope of the claims.

<Explanation of symbols for main parts of the drawing>
100: body part 110: first driving motor
130: output shaft 200: main reducer
210: input shaft 220: drive shaft
300: auxiliary reducer 400: clutch
500: timer 600: control module
700: rotation detecting means 711: hole
710: rotating plate 720: proximity sensor

Claims (5)

delete delete a body part 100 including a first driving motor 110 for generating power for vertical movement of the sluice gate;
a main reducer 200 that receives power from the main body 100 and transmits the transmitted power to the drive shaft 220 through one or more shafts and gears to rotate the drive shaft 220;
It is connected to the drive shaft 220 and receives power from the main reducer 200, and transmits the transmitted power to the sluice bar 41 through one or more shafts and gears to make the sluice gate move up and down. (300);
a clutch 400 provided in the main body 100 so as to be switched between a separation mode for cutting off power generated from the first driving motor 110 and transmitted to the output shaft 130 and a connection mode for connecting power;
A timer 500 for measuring the time required for the descent of the sluice gate;
Comparison of the descent time of the sluice gate, which is descended by its own weight by the clutch 400 switched to the separation mode, with the pre-entered reference descent time, but when the descent time measured by the timer 500 is equal to or greater than the standard descent time, the clutch A control module ( 600); and
It is connected to the output shaft 130 of the main body part 100 to detect whether the input shaft 210 provided in the main reducer 200 is rotated to receive power from the main body part 100, and the input shaft 210 is connected to the input shaft 210. a rotating plate 710 in which a plurality of holes 711 installed and extending in the circumferential direction are formed to be spaced apart from each other at regular intervals in the circumferential direction; and a proximity sensor 720 installed inside the main reducer 200 to detect whether the rotating plate 710 rotates or not so as to be located in a position corresponding to the hole 711 in the vicinity of the rotating plate 710; and , In the process of forcibly descending the sluice gate by the power of the first driving motor 110, when the sluice gate is stopped due to sediment in the waterway, it detects that the rotation of the shaft has stopped immediately and induces the sluice gate to rise for a specified time. means 700; including;
Step (S10) of receiving and storing the reference descent time required for the sluice gate to move from a preset height to a fully closed position in the process of descending by its own weight, by the control module 600 provided in the sluice gate lifter; A timer 500 provided in the sluice gate lifter measures in real time the required descent time from when the sluice gate descends by its own weight and passes the preset height, and the control module 600 receives the measured descent time required for descent comparing the time and the reference descent time (S20); if the descent time is equal to or longer than the reference descent time, forcibly raising and lowering the sluice gate using the power of the motor, and repeating the process of ascent and descent a preset number of times (S30); When the sluice gate descends to the fully closed position in the process of repeating ascent and descent, terminating the operation of the sluice gate lifter (S40); When the descending operation of the descending sluice gate stops in the process of repeating the rising and falling of the sluice gate, the rotation detecting means 700 provided in the sluice gate lifter detects the axis at which the rotation is stopped and transmits an overload generation signal to the control module 600 . and controlling the control module 600 so that the sluice gate stops the lowering operation and repeats the ascending and descending for the remaining number of times (S50); And if the complete closure of the sluice gate is not detected even though the sluice gate has repeatedly ascended and descended the specified number of times, terminating the operation of the sluice gate lifter and generating a warning signal (S60); Emergency shut-off type sluice winding device comprising an overload response detection circuit, characterized in that.
Step (S10) of receiving and storing the reference descent time required for the sluice gate to move from a preset height to a fully closed position in the process of descending by its own weight, by the control module 600 provided in the sluice gate lifter;
A timer 500 provided in the sluice gate lifter measures in real time the required descent time from when the sluice gate descends by its own weight and passes the preset height, and the control module 600 receives the measured descent time required for descent comparing the time and the reference descent time (S20);
if the descent time is equal to or longer than the reference descent time, forcibly raising and lowering the sluice gate using the power of the motor, and repeating the process of ascent and descent a preset number of times (S30);
When the sluice gate descends to the fully closed position in the process of repeating ascent and descent, terminating the operation of the sluice gate lifter (S40);
When the lowering operation of the descending sluice gate is stopped in the process of repeating the rising and falling of the sluice gate, the rotation detection means 700 provided in the sluice gate lifter detects the axis at which the rotation is stopped and transmits an overload generation signal to the control module 600 and controlling the control module 600 so that the sluice gate stops the lowering operation and repeats the ascending and descending for the remaining number of times (S50); and
If complete closure of the sluice gate is not detected even though the sluice gate has repeatedly ascended and descended the specified number of times, terminating the operation of the sluice gate lifter and generating a warning signal (S60);
The rotation detecting means 700 is connected to the output shaft 130 of the main body 100 and is installed on the input shaft 210 provided in the main reducer 200 to receive the power of the main body 100 and extends in the circumferential direction. A rotating plate 710 in which a plurality of holes 711 are formed to be spaced apart from each other by a predetermined interval in the circumferential direction, and located adjacent to the rotating plate 710, but located in a position corresponding to the hole 711, the main reducer 200 It is installed in the interior of the sluice and consists of a proximity sensor 720 that detects whether the rotating plate 710 is rotated, and the clutch 400 provided in the sluice lift is switched to the connection mode and the sluice gate is forcibly descended by the power of the motor. A control method of an emergency shut-off type sluice gate lifter including an overload response detection circuit, characterized in that it is activated only in the control unit and is controlled to detect whether the shaft rotates. delete

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