KR20020066133A - Position moving control system of large construct - Google Patents

Abstract

PURPOSE: A position control system for a large structure is provided to reduce working process, and to improve safety and working efficiency by moving the large structure evenly or unevenly with controlling automatically. CONSTITUTION: A control system for moving a large structure is composed of hydraulic jacks(J1,J2,J3,J4) arranged between the load supporting points of the structure and the reference plane; oil pumps(81a) connected to hydraulic jacks through oil supply lines(41,42,43,44); a measuring unit measuring load applied to hydraulic jacks, displacement, horizontal gradient and oil pressure applied to hydraulic jacks; a solenoid valve installed in the oil supply line to control operation of the hydraulic jack; and a control unit processing data from the measuring unit, and controlling the solenoid valve. The position of the large construction is measured safely and automatically, and working efficiency is improved with reducing accidents.

Description

Position moving control system of large construct

The present invention relates to a position movement control system of a large structure for moving the position of large structures, such as bridges, steel structures, ships, in particular, so that the position of the large structure can be moved automatically or evenly to the uniform control as needed The present invention relates to a position movement control system for large structures that greatly improves labor savings, stability and efficiency.

In general, bridge structures are inevitably damaged due to frequent traffic of heavy vehicles or trains and aging due to long-term progress. In particular, bridge devices installed on bridges and bridges are structurally important members that properly absorb the loads on the bridges and transfer them to the undercarriage, and are often damaged and damaged by excessive shocks.

Therefore, the position movement of the bridge structure (up, down, left, right, before and after) is performed for proper repair and reinforcement of the bridge structure.

In addition, when the bridge is located in the river, there is a case where the upper part of the bridge (top plate, girder) has to be elevated due to lack of water supply level due to sediment deposition or changes in the environment.

For the maintenance and reinforcement maintenance of the damage of the bridge, the position of the bridge needs to be moved and it must be moved evenly or unevenly up, down, left, right, front and back.

In addition to the construction, large structures in other shipbuilding and plant industries need to be moved properly as the work progresses (extrusion after drying and roof construction after installation of the columns in the factory).

However, the position movement work of large structures including bridges up to now is a conventional method of manually pumping by connecting a hydraulic jack to a hydraulic pump with a hydraulic hose. This is difficult to expect precise operation and is impossible to simultaneously or unevenly increase, which is very dangerous when damage to the structure.

That is, in the related art, it is not possible to accurately measure and control the horizontal slope, the working load, the pressure, the displacement amount, and the like of the hydraulic jack, so that the work progress and the risk situation thereof cannot be known. In addition, it was impossible to control the movement of large structures from a distance.

In addition, a lot of manpower must be invested for work progress and maintenance, and there is always a risk of major accidents because virtually no maintenance is performed at night.

In the case of bridges, the load condition changes from time to time as heavy vehicles and trains continue to pass, so there is no control and adjustment function for instantaneous load changes. There is no situation. In addition, since there is no remote communication system, only the site can be controlled and maintained.

In order to overcome many problems of the conventional manual hydraulic operation system, a hydraulic operation system capable of safe automatic measurement and control and efficient remote communication and management is required.

The present invention is to solve the general problems of the prior art as described above, large structures that greatly improved the labor savings, stability and efficiency by enabling the automatic movement of the large structures uniformly or unevenly, if necessary The purpose is to provide a position movement control system.

Specific means of the present invention for achieving the above object,

As a system for raising large structures such as bridge structures, steel structures, ships, etc.

A plurality of hydraulic jacks disposed between the load supporting point of the structure and the reference surface by the number of impression points;

An oil pump connected to each of the plurality of hydraulic jacks and an oil supply line;

Measuring means for measuring at least one measured value of at least one of a weight, an impression displacement, a horizontal gradient, and an oil pressure acting on each of the hydraulic jacks;

Solenoid valve means provided on an oil supply line for controlling the operation of each hydraulic jack; And

And control means for processing the measured value input from the measuring means and controlling the operation of the solenoid valve means.

1 is a block diagram of a vertical movement control system of the bridge structure according to an embodiment of the present invention.

Figure 2 is a block diagram of the electronic circuit of the position movement control system of the bridge structure applied to the present invention.

3 is a processing flowchart of the alarm driving circuit applied to the present invention.

Figure 4 is a hydraulic jack arrangement of the front and rear position movement control system of a large structure according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

J, J1, J2, J3, J4: Hydraulic jack 31: Load gauge

32: displacement gauge 34: pressure gauge

35: solenoid valve 81a, 81b: oil pump

51: microprocessor 71: controller

52: RAM 150: alarm drive circuit

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

In the present embodiment, the object to be lifted is an example of a large bridge structure 20 as shown in FIG.

The bridge structure 20 has four lifting support points P1, P2, P3 and P4, and each of the four hydraulic jacks J1, J1, between the lifting support points P1, P2, P3 and P4 and the upper surface of the bridge. J2, J3, J4) are arranged. On the upper surfaces of the hydraulic jacks J1, J2, J3, J4, load meters 31 for measuring bridge loads acting at the lifting support points P1, P2, P3, P4 are respectively provided. At this time, the load meter 31 may be disposed between the upper surface of the piers and the bottom surface of the hydraulic jacks (J1, J2, J3, J4).

In addition, the hydraulic jacks J1, J2, J3, J4 are equipped with a displacement meter 32 for measuring the displacement amount during the pulling operation and an inclinometer 33 for measuring the horizontal inclination value of the hydraulic jacks J1, J2, J3, J4. have.

A plurality of oil pumps 81a, 81b are connected to the oil supply lines 41, 42, 43, 44 of the hydraulic jacks J1, J2, J3, J4, and the oil supply lines 41, 42, 43, On the 44, the pressure gauge 34 for measuring the pressure of the hydraulic jacks J1, J2, J3, J4, and the solenoid valve as a valve means for controlling the oil supplied to the hydraulic jacks J1, J2, J3, J4. 35 is connected in series. At this time, the solenoid valve 35 performs an oil flow rate adjustment function, an oil supply and a shutoff function.

The solenoid valve 35 is connected to the microprocessor 51 receiving the control signal of the controller 71 to be described later to control the stopping and pulling speed of each hydraulic jack (J1, J2, J3, J4). The hydraulic jacks J1, J2, J3, and J4 may be selectively or simultaneously operated under the control of each solenoid valve 35 when the selected oil pumps 81a and 81b operate individually or simultaneously.

In this case, when the bridge structure 20 is evenly pulled up, the lifting support points P1, P2, P3, and P4 may be simultaneously raised by adjusting the opening amount of each solenoid valve 35 in the same manner.

In addition, when the bridge structure 20 is settled unevenly, if the opening amount of each solenoid valve 35 is adjusted, the lifting amount of each of the lifting support points P1, P2, P3, and P4 is different, and thus the bridge structure 20 is inherently inclined. It is possible to return to position.

In addition, the measuring means such as the load gauge 31, the displacement gauge 32, the inclinometer 33 and the pressure gauge 34 and the solenoid valve 35 are connected to the microprocessor 51 as shown in FIG.

The microprocessor 51 includes a RAM 52, a solenoid valve 35, a controller 71, and an alarm drive circuit 150, as shown in a block diagram of the electronic circuit of the position movement control system shown in FIG. It is connected.

The microprocessor 51 calculates the actual measured values (horizontal slope, working load, oil pressure, pulling amount) measured and input from the measuring means 31, 32, 33, 34. The controller 71 controls the solenoid valve 35, the alarm drive circuit 150, and the plurality of oil pumps 81a and 81b in response to an operation signal of the microprocessor 51.

The oil pumps 81a and 81b are preferably installed in at least one or two or more plural in consideration of movement control objects, that is, working loads and workloads of the bridge structure, in which case any one oil pump 81a or 81b is used. In case of failure, it is preferable to selectively use at least one other oil pump to enable position shift.

The RAM 52 is a working memory for storing data programmed in the recording medium 85. The alarm driving circuit 150 is a circuit for generating an alarm to the alarm system including a speaker whether the hydraulic jack acts as a measurement value measured by the measuring means, that is, the horizontal gradient, the working load, the oil pressure, and the lifting amount. .

For example, the controller 71 generates an alarm through the speaker and the displacement warning when the actual horizontal slope of any one hydraulic jack exceeds the set horizontal slope deviation, and simultaneously stops all the hydraulic jacks.

In addition, when an excessive working load is applied to one of the hydraulic jacks or when a set deviation of the working loads acting on each hydraulic jack is exceeded, an alarm is generated through a speaker and a load warning, and at the same time, the hydraulic jack is stopped.

In addition, when any one of the hydraulic jack is excessive oil pressure than the set oil pressure to generate an alarm through the speaker and pressure warning lights and at the same time stop the hydraulic jack.

In addition, when the actual lift amount of each hydraulic jack reaches the set scheduled lift amount or exceeds the set lift deviation of each hydraulic jack, an alarm is generated through a speaker and a displacement warning, and all hydraulic jacks are stopped at the same time.

As described above, the microprocessor 51 is configured for the horizontal gradient, the working load, the impression displacement, and the oil pressure, respectively measured in the load gauge 31, the displacement gauge 32, the inclinometer 33, and the pressure gauge 34, respectively. The data is arithmetic and processed in real time, and at the same time, the recording medium 85 is read, and the set working memory stored in the RAM 52 is read to control the operation of each part of the electric circuit including each solenoid valve 35. At this time, the RAM 52 stores various set values (inclination deviation, maximum allowable working load, maximum oil pressure, and planned lift amount).

The microprocessor 51 is connected to the controller 71 through the connecting device 61. In this embodiment, four microprocessors 51 are provided in equal numbers corresponding to four hydraulic jacks J1, J2, J3, and J4. This is so that even if an abnormality occurs in the circuit part of any one of the microprocessors 51, the control at the other pulling support points P2, P3, and P4 can be continuously performed.

According to the present invention, the microprocessor 51 may be connected to the controller 71 by various combinations of the microprocessor 51 according to the location movement work environment of the large structure, and the microprocessor 51 may be implemented as a single modular processing device. .

The controller 71 includes a microprocessor 51, that is, a peripheral device, that is, oil pumps 81a and 81b, a printer 82, a power supply 83, a recording medium reading unit 84, and a communication system 100. The communication system 100 is connected to the monitoring system 200 in the central control room.

The oil pumps 81a and 81b operate under the control of the controller 71. If one of the oil pumps fails during operation, the oil pumps 81a and 81b alternately operate the other to operate the system normally.

The printer 82 outputs the data on the actual horizontal slope, the working load, the oil pressure, and the lift amount generated during the operation in a graph.

The recording medium 85 is a medium in which the control program of the system is recorded, and various work processing procedures are programmed, including setting values for horizontal gradient, working load, oil pressure, and pulling amount.

The communication system 100 may include a transmission and reception communication system, and may use a wired or wireless connection, and in some cases, may use a combination of these wired and wireless signals. You can also send. In the case of using wireless, it includes a wireless transmitter and a wireless transmitter. This enables remote communication system, which not only controls and maintains in the field but also eliminates the need for high-quality personnel to stay on site 24 hours a day.

The present embodiment configured as described above can be controlled using a notebook computer or a personal computer.

The operation of this embodiment configured as described above will be described.

First, the hydraulic jacks J1, J2 between the lifting support points P1, P2, P3, P4 of the bridge structure 20 and the piers in consideration of the pulling point before turning on the power of the power supply device 83 of the present system. , J3, J4 are provided respectively, and the load gauge 31, the displacement gauge 32, the inclinometer 33, and the pressure gauge 34 which are digital measuring instruments are connected to the microprocessor 31 at the same time.

Next, when the power supply device 83 is turned on and the recording medium 85 is inserted into the recording medium driving unit 84 to read, the estimated deviation of the maximum allowable load and the working load set in the recording medium 85 is read. Various setting values such as the pulling amount, the expected deviation of the pulling amount, the allowable inclination deviation of the hydraulic jack, the oil pressure, and the like are stored in the working memory of the RAM 52. At the same time, the control sequence of the hydraulic jack programmed in the recording medium 85 is stored. In addition, the oil pump 81a or 81b is driven.

Next, four solenoid valves 35 are simultaneously or selectively controlled by the controller 71, and the hydraulic jacks J1, J2, J3, J4 are operated, respectively. At this time, when the bridge structure 20 is equally raised, the hydraulic jacks J1, J2, J3, and J4 are operated at the same pulling speed at the same time and at different lifting speeds when the bridge is unevenly lifted.

At this time, the controller 71 performs the control as shown in the processing flow diagram of FIG. 3 with the information processed from each microprocessor 51.

That is, the horizontal slope deviation, the maximum allowable load and the expected load deviation, the maximum allowable oil pressure, the predetermined lift amount and the impression deviation thereof set as in step 500 are read out from the RAM 52.

Next, during the actual operation in step 502, each measurement is simultaneously performed from the load gauge 31, the displacement gauge 32, the inclinometer 33, and the pressure gauge 34, and the hydraulic jacks (in real time in the microprocessor 51) Calculate the actual horizontal inclination, working load, oil pressure, pulling amount, and required expected deviation value of J1, J2, J3, J4), and compare the measured values with the various set values stored in RAM 34. do.

Next, compare the actual deviation with respect to the horizontal inclination that actually occurs in the individual hydraulic jack in step 504, and generates an inclination alarm through the alarm drive circuit 150 in step 506 when the set horizontal inclination deviation exceeds. And close all solenoid valves 35 to stop the hydraulic jacks (J1, J2, J3, J4). In this case, reinstall the hydraulic jack by correcting the horizontal direction.

Next, when the actual measured working load or the actual deviation thereof exceeds the set value (maximum allowable load, load setting deviation) in step 508, a load alarm is generated as in step 510 and all solenoid valves 35 are operated. ) To stop the hydraulic jacks (J1, J2, J3, J4). In this case, the hydraulic jack can be replaced with an increase in capacity, and the pulling operation can be continued.

Next, if the actual oil pressure of any one hydraulic jack in step 512 exceeds the set maximum oil pressure, it generates a pressure alarm as in step 514 and closes all solenoid valves 35 to close the hydraulic jacks J1, J2, J3. , J4) is stopped.

Next, when the actual lift amount of the hydraulic jack measured in step 516 reaches all of the predetermined scheduled lift amounts or the amount of deviation of the actual lift amount for each of the support points P1, P2, P3, and P4 exceeds the set deviation amount ( As shown in 518, the raising alarm is generated and the hydraulic jacks J1, J2, J3, J4 are stopped.

Next, in step 516, if all of the hydraulic jacks J1, J2, J3, J4 do not reach the set scheduled lift value or do not exceed the set lift deviation, each hydraulic jack is raised until the set lift amount is reached. Processing is sequentially repeated from step 502 to step 516.

Such a processing step can realize both an equal and an uneven increase of a large structure by approaching the set-up amount of the actual lifting amount of each hydraulic jack (J1, J2, J3, J4).

In the present embodiment, a method for processing with four types of measurement target values of the hydraulic jack, that is, the horizontal slope, the working load, the oil pressure, and the lifting amount has been described. However, the present invention provides at least one of the required measurement target values. It is a matter of course that any one or a plurality of remaining steps can be selected as the control target, including the step 502 of measuring the phosphorus data.

Meanwhile, the central control room may manage and control the operation of the hydraulic jack in real time through the monitoring system 200 via the communication system 100.

As described above, according to the present embodiment, the position movement of a large structure can be automatically performed, thereby enabling simultaneous impression or uneven impression by precise operation, which prevents damage to the structure due to the impossibility of conventional simultaneous impression and reduces the risk. It is possible to reduce and increase the inequality if necessary.

In addition, it can automatically control the work progress and maintenance, does not require a lot of manpower, can be maintained at night, eliminating the risk of major accidents.

In particular, even in the case of bridges, even if the load condition changes from time to time as the heavy vehicles and trains continue to pass, it is possible to control and adjust the instantaneous load changes, and when a dangerous situation is predicted, an alarm system is activated to prevent large size. You can prevent accidents. In addition, remote communication systems are available, which not only controls and maintains the site, but also eliminates the need for high-quality personnel to be on-site for 24 hours.

On the other hand, the present invention schematically shows that it can be used as a system for controlling the movement of the large structure before and after, as shown in FIG.

That is, using the control circuit as shown in Figure 2, including the measuring means (31, 32, 33, 34) and the solenoid valve 35 by connecting as many hydraulic jacks (J) as necessary on the side of the large structure, Figure 3 It is possible to control the moving position before and after by the processing method as follows. Therefore, it is possible to apply the position movement control system of the large structure of the present invention to extrusion, towing of structures such as ships.

As described above, according to the present invention, safe automatic measurement and control of large structures, steel structures, ships, etc., and efficient remote communication are possible, so that large accidents can be reduced, management is always possible, and precise up and down, front and rear lifting operations are possible. It has the advantage of being able to perform.

Claims (5)

As a system for raising large structures such as bridge structures, steel structures, ships, etc. Hydraulic jacks J1, J2, J3, J4 disposed between the load supporting points of the structure and the reference points by the number of impression points; At least one oil pump 81a or 81b connected through the hydraulic jacks J1, J2, J3 and J4 and oil supply lines 41, 42, 43 and 44, respectively; Measuring at least one measured value among the lower weight, the amount of displacement, the horizontal gradient and the oil pressure acting on the hydraulic jacks J1, J2, J3, J4, and the hydraulic pressure acting on the hydraulic jacks J1, J2, J3, J4. Measuring means for; Solenoid valve means installed on an oil supply line for controlling the operation of each of the hydraulic jacks J1, J2, J3, J4; And And a control means for processing the measured value input from said measuring means and controlling the operation of said solenoid valve means. The method of claim 1, wherein the control means, (a) means for reading a work program and storing work data for the work order of each hydraulic jack J1, J2, J3, J4 and the set working load, the impression displacement and the expected deviation; (b) real-time calculation processing of the working load inputted through the measuring means, the amount of displacement, the horizontal gradient, and the oil pressure applied to the hydraulic jacks; Means for judging and comparing the predicted deviation with respect to the working load, the pulling displacement, the horizontal gradient, and controlling the solenoid valve means and the oil pump; And (c) a large structure comprising means for generating an alarm when each hydraulic jack is subjected to an overload in the step (b) or when the hydraulic jack reaches an expected increase or exceeds an expected deviation of the horizontal inclination of the hydraulic jack. Position movement control system. The method of claim 1, And a communication means for controlling the electronic control means remotely. On your computer, From the measuring means, data of at least one of the actual horizontal inclination of the hydraulic jacks J1, J2, J3, J4, the actual working load and the actual load deviation, the actual lifting amount and the actual raise deviation, and the actual oil pressure of the hydraulic jack The first step of measuring in real time, A second step of generating an inclination alarm and stopping all hydraulic jacks when the actual horizontal inclination of any one of the hydraulic jacks J1, J2, J3, J4 exceeds a set horizontal inclination deviation; If the actual horizontal inclination of each of the hydraulic jacks J1, J2, J3, J4 does not exceed the set inclination deviation in the second step, the actual working load measured by the hydraulic jacks J1, J2, J3, J4 and the deviation thereof are determined. A third step of judging and comparing with each set value, generating a load alarm and stopping all hydraulic jacks when the actual working load or its deviation exceeds the set value; In the third step, if the actual working load or its deviation does not exceed the set value, it is determined whether the actual oil pressure of each of the hydraulic jacks J1, J2, J3, J4 is excessive, and if it exceeds the set value, a pressure alarm is generated. Step 4 to stop all the hydraulic jacks, In the fourth step, if the actual oil pressure is not excessive, the fifth step of generating a raise alarm and stopping all the hydraulic jacks when all of the difference is satisfied by judging the actual lift amount and the deviation amount from each set value; If all the hydraulic jacks J1, J2, J3, J4 do not reach the set lift amount in the fifth step, or if the deviation amount is satisfied, the hydraulic jacks are raised to reach the set lift amount until the set lift amount is reached. A computer-readable recording medium for recording a program for executing the sixth step of repeating five steps. The method of claim 4, wherein And a computer-readable recording medium for recording a program in which the second to fourth steps are selectively executed according to the required selection of the measurement target value of the first step.