CN113775352B - Automatic control system of multi-screw machine of large-section rectangular pipe jacking machine - Google Patents
Automatic control system of multi-screw machine of large-section rectangular pipe jacking machine Download PDFInfo
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- CN113775352B CN113775352B CN202110655076.8A CN202110655076A CN113775352B CN 113775352 B CN113775352 B CN 113775352B CN 202110655076 A CN202110655076 A CN 202110655076A CN 113775352 B CN113775352 B CN 113775352B
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- screw machine
- pressure sensor
- soil pressure
- screw
- soil
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- 239000002689 soil Substances 0.000 claims abstract description 164
- 239000002893 slag Substances 0.000 claims abstract description 46
- 238000005192 partition Methods 0.000 claims abstract description 31
- 238000005303 weighing Methods 0.000 claims abstract description 26
- 239000004519 grease Substances 0.000 claims description 102
- 230000001050 lubricating effect Effects 0.000 claims description 74
- 238000005461 lubrication Methods 0.000 claims description 25
- 230000005641 tunneling Effects 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 13
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 241000237858 Gastropoda Species 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/70—Supply
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the technical field of push bench, in particular to an automatic control system of a large-section rectangular push bench multi-screw machine, which comprises a stratum, a soil bin, a screw machine body, a shield body partition board, a slag car and a weighing device, wherein the soil bin is arranged in the stratum, the shield body partition board is arranged on the left side of the soil bin, a transportation channel is arranged on the left side of the shield body partition board in the stratum, the screw machine body is arranged on the left side surface of the shield body partition board, one end of the screw machine body, which is close to the shield body partition board, penetrates through the shield body partition board and stretches into the lower part of the soil bin, the transportation channel is provided with a main control chamber, the main control chamber is electrically connected with the screw machine body, the slag car is arranged in the transportation channel in a sliding manner, the weighing device is arranged at the position corresponding to the left end of the transportation channel, and the start-stop and rotation speed control of the screw machine body is designed as a closed-loop control system, and automatic control and adjustment can be realized according to the excavation condition and a selection mode of the main control chamber.
Description
Technical Field
The invention relates to the technical field of push bench, in particular to an automatic control system of a large-section rectangular push bench multi-screw machine.
Background
The rectangular jacking pipe with the large section has large span and large size in the width direction, so that the slag at the bottom of the soil bin can be completely discharged, 2-3 screw machines are often arranged in the width direction to slag, and the slag at the two sides of the soil bin can be smoothly discharged. The existing control method of the multiple screw machines is manual control, and the starting, stopping and rotating speed of each screw machine are required to be manually controlled according to tunneling conditions. Meanwhile, no linkage with the slag car exists, a special person is required to monitor whether the slag car is full or not at fixed points, the slag car full alarm is triggered manually, the screw machine is stopped manually, and the operation is complex.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an automatic control system of a multi-screw machine of a large-section rectangular pipe jacking machine.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a big section rectangle push bench many snails machine automatic control system, includes stratum, soil bin, snail body, shield body baffle, slag car and weighing device, set up the soil bin in the stratum, the soil bin left side sets up shield body baffle, the stratum is located shield body baffle left side and sets up the transportation passageway, shield body baffle left side surface sets up the snail body, snail body is close to shield body baffle one end and stretches into the soil bin below through shield body baffle, the transportation passageway sets up the master control room, master control room and snail body electric connection, the slip sets up the slag car in the transportation passageway, transportation passageway bottom and snail body left end correspond the position and set up weighing device, weighing device and master control room electric connection, snail body includes snail A, snail B and snail C, snail A, snail B and snail C are set gradually on shield body baffle from front to back, the shield body is internally provided with a screw machine lubricating grease pump, one side of the screw machine lubricating grease pump is provided with an oil storage tank, screw machine lubricating grease is arranged in the oil storage tank, a low-level alarm is arranged in the oil storage tank and is electrically connected with a main control room, the input end of the screw machine lubricating grease pump is communicated with the oil storage tank, the output end of the screw machine lubricating grease pump is respectively provided with a screw machine grease lubrication A path, a screw machine grease lubrication B path and a screw machine grease lubrication C path, one end of the screw machine grease lubrication A path, the screw machine B path and the screw machine C path, which are far away from the screw machine lubricating grease pump, is respectively connected with the screw machine A, the screw machine B and the screw machine C, pneumatic ball valves A, B and C are respectively arranged in the screw machine grease lubrication A path, the screw machine grease lubrication B path and the screw machine grease lubrication C path, the front side of the shield body partition board, which is close to one side of the soil bin, is sequentially provided with a soil pressure sensor A1 and a soil pressure sensor A2 from bottom to top, the middle position of the shield body partition board, which is close to one side of the soil bin, is sequentially provided with a soil pressure sensor B1 and a soil pressure sensor B2 from bottom to top, the rear side of the shield body partition board, which is close to one side of the soil bin, is sequentially provided with a soil pressure sensor C1 and a soil pressure sensor C2 from bottom to top, and when no signal exists in all 6 groups of soil pressure sensors, the soil bin is in a blank state in the mode, and the mode is marked as M1; when at least one of the soil pressure sensor A1, the soil pressure sensor B1 or the soil pressure sensor C1 has a signal, and none of the soil pressure sensor A2, the soil pressure sensor B2 and the soil pressure sensor C2 has a signal, the soil bin is in a half bin state in the mode, and the mode is marked as M2; when the soil pressure sensor A1, the soil pressure sensor B1 and the soil pressure sensor C1 all have signals, and at least one of the soil pressure sensor A2, the soil pressure sensor B2 and the soil pressure sensor C2 has signals, the soil bin is in a full bin state in the mode state, and the mode is marked as M3. The weighing sensor is used for measuring the weight of the slag soil so as to judge whether the slag car is full. The judgment principle is as follows: and calculating the weight according to the volume of the slag car and the stratum density, and judging that the slag car is full when the set weight is reached. According to different stratum, design has different weighing coefficient, and soft soil stratum weighing coefficient marks as T1, and compound stratum weighing coefficient marks as T2, and hard rock stratum weighing coefficient marks as T3, and weighing coefficient can select in the master control room.
The invention further provides an automatic control flow of the multi-screw machine of the large-section rectangular pipe jacking machine, which comprises the following steps:
step one, a main control room controls a screw machine body to select a tunneling mode of M1, M2 or M3;
step two, judging the current soil bin residue soil state according to the feedback signals of each point soil pressure sensor;
step three, comparing the selected mode with the current tunneling mode, entering a shunt control flow according to a comparison result, and entering an A-path shunt control flow when the actual condition of the soil bin is in a half-bin state (M2) and the main control room selects an empty bin (M1) for tunneling; when the actual condition of the soil bin is in a full bin state (M3), the main control room selects an empty bin (M1) for tunneling, the screw machine body enters a B-path sub-control flow; when the actual condition of the soil bin is in a full bin state (M3), the main control room selects a half bin (M2) for tunneling, the screw machine body enters a C-path sub-control flow; when the selected mode and the current tunneling mode are other conditions, the screw machine body is not changed.
In order to ensure that the screw machine body is fully lubricated before working, the invention is improved in that a screw machine lubricating grease pump needs to be started before the screw machine body is started.
The invention also provides an A path division control flow, which comprises the following steps:
step 1, judging the state of the slag car and the volume of the screw machine lubricating grease in the screw machine lubricating grease pump, and alarming the slag car if the slag car is full, wherein the screw machine body does not act; if the slag car is empty and the screw lubricating grease is enough, further judging signals of all groups of soil pressure sensors;
step 2, starting a ball valve at a grease lubrication A path of the screw machine if a signal exists in the soil pressure sensor A1, starting the ball valve at the grease lubrication B path of the screw machine if a signal exists in the soil pressure sensor B1, and starting the ball valve at a grease lubrication C path of the screw machine if a signal exists in the soil pressure sensor C1; meanwhile, one path of pneumatic ball valve A, B, C is started, so that a screw lubricating grease pump is started;
step 3, when the soil pressure sensor A1 has a signal and the screw lubricating grease pump is started, starting the screw machine A and reaching the highest rotating speed R1, so that the soil bin is deslagged as soon as possible, when the soil pressure sensor B1 has a signal and the screw lubricating grease pump is started, starting the screw machine B and reaching the highest rotating speed R2, and when the soil pressure sensor C1 has a signal and the screw lubricating grease pump is started, starting the screw machine C and reaching the highest rotating speed R3;
step 4, after the screw machine body works for a period of time, when the signal of the soil pressure sensor A1 disappears, the part A is in an empty state, and the mode selected by the main control room is met, so that the rotating speed of the screw machine A is reduced from R1 to R1, the working frequency of the screw machine lubricating grease pump is reduced, and grease is conveniently saved; when the signal of the soil pressure sensor B1 disappears, the rotating speed of the screw machine B is reduced from R2 to R2, and the working frequency of the screw machine lubricating grease pump is reduced; when the signal of the soil pressure sensor C1 disappears, the rotating speed of the screw machine C is reduced from R3 to R3, and the working frequency of the screw machine lubricating grease pump is reduced. The numerical values of r1, r2 and r3 are matched with the pushing speed V of the push bench, so that after the screw machine body rapidly discharges excessive slag soil in the full bin and the empty bin, the total slag output of the three screw machines is equal to the newly excavated slag soil, and the empty bin state is maintained at the moment.
In order to facilitate control of the B-way branch control flow and the C-way branch control flow, the invention is improved in that the B-way branch control flow, the C-way branch control flow and the A-way branch control flow are consistent.
The invention further provides a screw machine body shutdown control flow, which comprises the following steps:
step 1, when a master control room actively issues a stop propulsion instruction, a low-level alarm works or a weighing device detects that one of three triggering conditions of filling a slag car occurs, a screw machine body which is working at present is triggered to stop working;
step 2, if three screw machines are working, stopping the screw machine A, the screw machine B and the screw machine C, closing the pneumatic ball valve A and the pneumatic ball valve B simultaneously, closing the screw machine lubricating grease pump, and closing the pneumatic ball valve C finally; if two screw machines are working, the screw machine A and the screw machine B are stopped, the pneumatic ball valve A is closed at the same time, then the screw machine lubricating grease pump is closed, and finally the pneumatic ball valve B is closed; if only one screw machine works, the screw machine A is stopped, meanwhile, the screw machine lubricating grease pump is closed, and finally, the pneumatic ball valve A is closed. Therefore, the ball valve is always closed after the screw lubricating grease pump is closed, so that the screw lubricating grease pump is prevented from holding pressure.
(III) beneficial effects
Compared with the prior art, the invention provides the multi-screw automatic control system of the large-section rectangular pipe pushing jack, which has the following beneficial effects:
the automatic control system of the multi-screw machine of the large-section rectangular pipe jacking machine,
1. the start-stop and rotation speed control of the screw machine body are designed into a closed-loop control system, and automatic control and adjustment can be realized according to the excavation condition and the main control room selection mode.
2. When the screw machine body is started, the screw machine lubricating grease pump is started first, so that the screw machine body is ensured to be fully lubricated in advance.
3. The pumping frequency of the screw machine lubricating grease pump can be automatically adjusted according to the rotating speed of the screw machine body, so that the utilization of screw machine lubricating grease is improved, and the grease consumption is reduced.
4. When the screw machine body is stopped, the screw machine lubricating grease pump is ensured not to be pressed down by adjusting the stopping sequence, and the stability and the reliability of the system are improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic top view of the screw machine body of the present invention;
FIG. 3 is a schematic diagram of the distribution of the soil pressure sensor points according to the present invention;
FIG. 4 is a schematic view of the empty state of the soil bin according to the present invention;
FIG. 5 is a schematic view of a half-bin state of the soil bin of the present invention;
FIG. 6 is a schematic view of the full soil bin of the present invention;
FIG. 7 is a schematic diagram of an automatic control flow of a multi-screw machine of the large-section rectangular pipe jacking machine;
FIG. 8 is a schematic diagram of the soil A-path division control flow of the present invention;
FIG. 9 is a schematic diagram of the shutdown control flow of the body of the conch machine according to the invention;
in the figure: 1. a formation; 2. a soil bin; 3. a screw machine body; 4. a shield body partition board; 5. slag car; 6. a weighing device; 7. a transport channel; 8. a screw lubricating grease pump; 9. an oil storage tank.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, an automatic control system of a large-section rectangular push bench multi-screw machine comprises a stratum 1, a soil bin 2, a screw machine body 3, a shield body partition board 4, a slag car 5 and a weighing device 6, wherein the soil bin 2 is arranged in the stratum 1, the shield body partition board 4 is arranged on the left side of the soil bin 2, the stratum 1 is positioned on the left side of the shield body partition board 4, a transportation channel 7 is arranged on the left side surface of the shield body partition board 4, one end of the screw machine body 3, which is close to the shield body partition board 4, penetrates through the shield body partition board 4 to extend into the lower part of the soil bin 2, a main control chamber is arranged on the transportation channel 7, the main control chamber is electrically connected with the screw machine body 3, the slag car 5 is arranged in the transportation channel 7, the weighing device 6 is arranged at the position corresponding to the left end of the transportation channel 7 and the screw machine body 3, the weighing device 6 is electrically connected with the main control chamber, the screw machine body 3 comprises a screw machine A, a screw machine B and a screw machine C, the screw machine A, the screw machine B and the screw machine C are sequentially arranged on a shield body partition board 4 from front to back, a screw machine lubricating grease pump 8 is arranged in the shield body partition board 4, an oil storage tank 9 is arranged on one side of the screw machine lubricating grease pump 8, screw machine lubricating grease is arranged in the oil storage tank 9, a low-level alarm is arranged in the oil storage tank 9, the low-level alarm is electrically connected with a main control room, the input end of the screw machine lubricating grease pump 8 is communicated with the oil storage tank 9, a screw machine grease lubricating A path, a screw machine grease lubricating B path and a screw machine grease lubricating C path are respectively arranged at the output end of the screw machine lubricating grease pump 8, one end of the screw machine grease lubricating A path, one end of the screw machine grease lubricating B path and one end of the screw machine lubricating grease C path are respectively connected with the screw machine A, the screw machine B and the screw machine C, the screw grease lubrication A path, the screw grease lubrication B path and the screw grease lubrication C path are respectively provided with a pneumatic ball valve A, a pneumatic ball valve B and a pneumatic ball valve C, the front side of the shield body partition board 4, which is close to one side of the soil bin 2, is sequentially provided with a soil pressure sensor A1 and a soil pressure sensor A2 from bottom to top, the middle position of the shield body partition board 4, which is close to one side of the soil bin 2, is sequentially provided with a soil pressure sensor B1 and a soil pressure sensor B2 from bottom to top, the rear side of the shield body partition board 4, which is close to one side of the soil bin 2, is sequentially provided with a soil pressure sensor C1 and a soil pressure sensor C2 from bottom to top, and when the 6 groups of soil pressure sensors are all in no signal, the soil bin 2 is in an empty bin state in the mode, and the mode is marked as M1; when at least one of the soil pressure sensor A1, the soil pressure sensor B1 or the soil pressure sensor C1 has a signal, and none of the soil pressure sensor A2, the soil pressure sensor B2 and the soil pressure sensor C2 has a signal, the soil bin 2 is in a half bin state in the mode, and the mode is marked as M2; when the soil pressure sensor A1, the soil pressure sensor B1 and the soil pressure sensor C1 all have signals, and at least one of the soil pressure sensor A2, the soil pressure sensor B2 and the soil pressure sensor C2 has signals, the soil bin 2 is in a full bin state in the mode state, and the mode is marked as M3. The load cell is used for measuring the weight of the slag soil so as to judge whether the slag car 5 is full. The judgment principle is as follows: and calculating the weight according to the volume of the slag car 5 and the density of the stratum 1, and judging that the slag car 5 is full when the set weight is reached. According to different stratum 1, different weighing coefficients are designed, the weighing coefficient of the soft soil stratum 1 is marked as T1, the weighing coefficient of the composite stratum 1 is marked as T2, the weighing coefficient of the hard rock stratum 1 is marked as T3, and the weighing coefficients can be selected in a main control room.
The invention further provides an automatic control flow of the multi-screw machine of the large-section rectangular pipe jacking machine, which comprises the following steps:
step one, a master control room controls a screw machine body 3 to select a tunneling mode of M1, M2 or M3;
step two, judging the current slag soil state of the soil bin 2 according to feedback signals of each point soil pressure sensor;
step three, comparing the selected mode with the current tunneling mode, entering a shunt control flow according to a comparison result, and entering an A-path shunt control flow when the actual condition of the soil bin 2 is in a half-bin state (M2) and the main control room selects an empty bin (M1) for tunneling; when the actual condition of the soil bin 2 is in a full bin state (M3), and the main control room selects an empty bin (M1) for tunneling, the screw machine body 3 enters a B-path sub-control flow; when the actual condition of the soil bin 2 is in a full bin state (M3), and the main control room selects a half bin (M2) for tunneling, the screw machine body 3 enters a C-path sub-control flow; when the selected mode and the current tunneling mode are other conditions, the screw machine body 3 is not changed.
Before the screw machine body 3 is started, the screw machine lubricating grease pump 8 is started first, so that the screw machine body 3 can be fully lubricated before working.
The invention also provides an A path division control flow, which comprises the following steps:
step 1, judging the state of the slag car 5 and the volume of the screw lubricating grease in the screw lubricating grease pump 8, and alarming the slag car 5 if the slag car 5 is full, wherein the screw body 3 does not act; if the slag car 5 is empty and the screw lubricating grease is enough, further judging the signals of all groups of soil pressure sensors;
step 2, starting a ball valve at a grease lubrication A path of the screw machine if a signal exists in the soil pressure sensor A1, starting the ball valve at the grease lubrication B path of the screw machine if a signal exists in the soil pressure sensor B1, and starting the ball valve at a grease lubrication C path of the screw machine if a signal exists in the soil pressure sensor C1; meanwhile, one path of pneumatic ball valve A, B, C is started, so that the screw lubricating grease pump 8 is started;
step 3, when the soil pressure sensor A1 has a signal and the screw lubricating grease pump 8 is started, starting the screw machine A and reaching the highest rotating speed R1, so that the soil bin 2 is deslagged as soon as possible, when the soil pressure sensor B1 has a signal and the screw lubricating grease pump 8 is started, starting the screw machine B and reaching the highest rotating speed R2, and when the soil pressure sensor C1 has a signal and the screw lubricating grease pump 8 is started, starting the screw machine C and reaching the highest rotating speed R3;
step 4, after the screw machine body 3 works for a period of time, when the signal of the soil pressure sensor A1 disappears, the position A is in a blank space state locally, and the mode selected by the main control room is met, so that the rotating speed of the screw machine A is reduced from R1 to R1, the working frequency of the screw machine lubricating grease pump 8 is reduced, and grease is conveniently saved; when the signal of the soil pressure sensor B1 disappears, the rotating speed of the screw machine B is reduced from R2 to R2, and the working frequency of the screw machine lubricating grease pump 8 is reduced; when the signal of the soil pressure sensor C1 disappears, the rotating speed of the screw machine C is reduced from R3 to R3, and the working frequency of the screw machine lubricating grease pump 8 is reduced. The numerical values of r1, r2 and r3 are matched with the pushing speed V of the push bench, so that after the screw machine body 3 rapidly discharges excessive slag soil of a full bin and an empty bin, the total slag output of three screw machines is equal to the newly excavated slag soil, and the empty bin state is maintained at the moment.
The B-way branch control flow, the C-way branch control flow and the A-way branch control flow are consistent, and the B-way branch control flow and the C-way branch control flow are convenient to control.
The invention further provides a shutdown control flow of the screw machine body 3, which comprises the following steps:
step 1, when a main control room actively issues a stop pushing instruction, a low-level alarm works or a weighing device 6 detects that one of three triggering conditions of the slag car 5 is full, a screw machine body 3 which is working at present is triggered to stop working;
step 2, if three screw machines are working, stopping the screw machine A, the screw machine B and the screw machine C, closing the pneumatic ball valve A and the pneumatic ball valve B simultaneously, closing the screw machine lubricating grease pump 8 and finally closing the pneumatic ball valve C; if two screw machines are working, the screw machine A and the screw machine B are stopped, the pneumatic ball valve A is closed at the same time, then the screw machine lubricating grease pump 8 is closed, and finally the pneumatic ball valve B is closed; if only one screw machine works, the screw machine A stops, meanwhile, the screw machine lubricating grease pump 8 is closed, and finally, the pneumatic ball valve A is closed. Therefore, the ball valve is closed after the screw lubricating grease pump 8 is closed, and the screw lubricating grease pump 8 is prevented from being pressed.
The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.
In the description herein, it should be noted that the terms "coupled," "connected," and "connected," should be construed broadly, and may be either permanently connected, detachably connected, or integrally connected, for example, unless otherwise specifically indicated and defined; the connection may be mechanical connection, electrical connection, direct connection, or indirect connection via an intermediary. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a many spiral shell of big section rectangle pipe pushing machine automatic control system, includes stratum (1), soil bin (2), spiral shell machine body (3), shield body baffle (4), slag car (5) and weighing device (6), its characterized in that: the utility model discloses a novel multifunctional screw machine, which is characterized in that a soil bin (2) is arranged in a stratum (1), a shield body partition board (4) is arranged on the left side of the soil bin (2), a transportation channel (7) is arranged on the left side of the shield body partition board (4), a screw machine body (3) is arranged on the left side surface of the shield body partition board (4), one end of the screw machine body (3) is close to the shield body partition board (4) and stretches into the lower part of the soil bin (2) through the shield body partition board (4), a main control room is arranged on the transportation channel (7), the main control room is electrically connected with the screw machine body (3), a slag car (5) is arranged in the transportation channel (7), a weighing device (6) is arranged at the corresponding position of the bottom end of the transportation channel (7) and the left end of the screw machine body (3), the weighing device (6) is electrically connected with the main control room, the screw machine body (3) comprises a screw machine A, a screw machine B and a screw machine C, the screw machine A, the screw machine B and the screw machine C are sequentially arranged on the shield body partition board (4) from front to back, a screw machine lubricating grease pump (8) is arranged in the shield body partition board (4), one side of the screw machine lubricating grease pump (8) is provided with an oil storage tank (9), screw machine lubricating grease is arranged in the oil storage tank (9), a low-level alarm is arranged in the oil storage tank (9), and the low-level alarm is electrically connected with the main control room, the input end of the screw machine lubricating grease pump (8) is communicated with the oil storage tank (9), a screw machine grease lubrication A path, a screw machine grease lubrication B path and a screw machine grease lubrication C path are respectively arranged at the output end of the screw machine lubricating grease pump (8), one end of the screw machine lubricating grease pump (8) is respectively connected with the screw machine A, the screw machine B and the screw machine C, a pneumatic ball valve A, a pneumatic ball valve B and a pneumatic ball valve C are respectively arranged in the screw machine grease lubrication A path, the screw machine grease lubrication B path and the screw machine grease lubrication C path, a soil pressure sensor A1 and a soil pressure sensor A2 are sequentially arranged from bottom to top at the front side of one side of a shield body partition board (4) close to a soil bin (2), a soil pressure sensor B1 and a soil pressure sensor B2 are sequentially arranged from bottom to top at the middle position of one side of the shield body partition board (4) close to the soil bin (2), and a soil pressure sensor B2 is sequentially arranged at the soil pressure sensor C side of the shield body partition board (4) close to the soil bin (2), and the soil pressure sensor C is in a mode that the soil pressure sensor is in a soil pressure signal mode that the soil pressure sensor C is in the soil pressure sensor is in a soil pressure mode that the soil pressure sensor is in the soil pressure mode (1 is in the soil pressure mode; when at least one of the soil pressure sensor A1, the soil pressure sensor B1 or the soil pressure sensor C1 has a signal, and the soil pressure sensor A2, the soil pressure sensor B2 and the soil pressure sensor C2 have no signal, the soil bin (2) is in a half bin state in the mode, and the mode is marked as M2; when the soil pressure sensor A1, the soil pressure sensor B1 and the soil pressure sensor C1 all have signals, and at least one of the soil pressure sensor A2, the soil pressure sensor B2 and the soil pressure sensor C2 has signals, the soil bin (2) is in a full bin state in the mode state, and the mode is marked as M3; the automatic control system also comprises an automatic control flow of the large-section rectangular pipe jacking multi-screw machine, which comprises the following steps:
step one, a main control room controls a screw machine body (3) to select a tunneling mode of M1, M2 or M3;
step two, judging the current slag soil state of the soil bin (2) according to feedback signals of each point soil pressure sensor;
step three, comparing the selected mode with the current tunneling mode, entering a shunt control flow according to a comparison result, and entering an A-path shunt control flow when the actual condition of the soil bin (2) is in a half-bin state (M2) and the main control room selects an empty bin (M1) for tunneling; when the actual condition of the soil bin (2) is in a full bin state (M3), and the main control room selects an empty bin (M1) for tunneling, the screw machine body (3) enters a B-path sub-control flow; when the actual condition of the soil bin (2) is in a full bin state (M3), and the main control room selects half bin tunneling, the screw machine body (3) enters a C-path sub-control flow; when the selected mode and the current tunneling mode are other conditions, the screw machine body (3) is not changed.
2. The automatic control system of the large-section rectangular pipe-jacking multi-screw machine according to claim 1, wherein the automatic control system is characterized in that: before the screw machine body (3) is started, a screw machine lubricating grease pump (8) needs to be started first.
3. The automatic control system of the large-section rectangular pipe-jacking multi-screw machine according to claim 1, wherein the automatic control system is characterized in that: the A path sub control flow comprises the following steps:
step 1, judging the state of the slag car (5) and the volume of the screw lubricating grease in the screw lubricating grease pump (8), and if the slag car (5) is full, alarming the slag car (5), wherein the screw body (3) does not act; if the slag car (5) is empty and the screw lubricating grease is enough, further judging signals of all groups of soil pressure sensors;
step 2, starting a ball valve at a grease lubrication A path of the screw machine if a signal exists in the soil pressure sensor A1, starting the ball valve at the grease lubrication B path of the screw machine if a signal exists in the soil pressure sensor B1, and starting the ball valve at a grease lubrication C path of the screw machine if a signal exists in the soil pressure sensor C1; meanwhile, one path of pneumatic ball valve A, B, C is started, and a screw lubricating grease pump (8) is started;
step 3, when the soil pressure sensor A1 has a signal and the screw lubricating grease pump (8) is started, starting the screw A and reaching a maximum rotating speed R1, when the soil pressure sensor B1 has a signal and the screw lubricating grease pump (8) is started, starting the screw B and reaching a maximum rotating speed R2, and when the soil pressure sensor C1 has a signal and the screw lubricating grease pump (8) is started, starting the screw C and reaching a maximum rotating speed R3;
step 4, after the screw machine body (3) works for a period of time, when the signal of the soil pressure sensor A1 disappears, the rotating speed of the screw machine A is reduced from R1 to R1, and the working frequency of the screw machine lubricating grease pump (8) is reduced; when the signal of the soil pressure sensor B1 disappears, the rotating speed of the screw machine B is reduced from R2 to R2, and the working frequency of the screw machine lubricating grease pump (8) is reduced; when the signal of the soil pressure sensor C1 disappears, the rotating speed of the screw machine C is reduced from R3 to R3, the working frequency of the screw machine lubricating grease pump (8) is reduced, and the values of R1, R2 and R3 are matched with the pushing speed V of the push bench.
4. The automatic control system of the large-section rectangular pipe-jacking multi-screw machine according to claim 1, wherein the automatic control system is characterized in that: and the B-path branch control flow and the C-path branch control flow are consistent with the A-path branch control flow.
5. The automatic control system of the large-section rectangular pipe-jacking multi-screw machine according to claim 1, wherein the automatic control system is characterized in that: comprises a screw machine body (3) shutdown control flow, which comprises the following steps:
step 1, when a main control room actively issues a stop pushing instruction, a low-level alarm works or a weighing device (6) detects that one of three triggering conditions of a slag car (5) is full, a screw machine body (3) which is working at present is triggered to stop working;
step 2, if three screw machines are working, stopping the screw machine A, the screw machine B and the screw machine C, closing the pneumatic ball valve A and the pneumatic ball valve B simultaneously, closing the screw machine lubricating grease pump (8), and finally closing the pneumatic ball valve C; if two screw machines are working, the screw machine A and the screw machine B are stopped, the pneumatic ball valve A is closed at the same time, then the screw machine lubricating grease pump (8) is closed, and finally the pneumatic ball valve B is closed; if only one screw machine works, the screw machine A is stopped, meanwhile, the screw machine lubricating grease pump (8) is closed, and finally, the pneumatic ball valve A is closed.
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074194A (en) * | 1993-06-17 | 1995-01-10 | Fujita Corp | Control method for water stopping and earth retaining in mud pressure shield machine |
| JPH07260666A (en) * | 1994-03-17 | 1995-10-13 | Sumitomo Heavy Ind Ltd | Soil nature measurement device |
| JP2000064784A (en) * | 1998-08-19 | 2000-02-29 | Komatsu Ltd | Tunnel boring machine |
| JP2003097180A (en) * | 2001-09-20 | 2003-04-03 | Komatsu Ltd | Shield machine |
| CN101798933A (en) * | 2010-04-13 | 2010-08-11 | 同济大学 | Simulation test system for soil pressure balance shielding screw conveyer |
| CN103775096A (en) * | 2014-02-19 | 2014-05-07 | 粤水电轨道交通建设有限公司 | Shield launching method for soft earth layer |
| CN103821529A (en) * | 2014-03-12 | 2014-05-28 | 上海市机械施工集团有限公司 | Earth pressure balance control system of rectangular shield tunneling machine and method of earth pressure balance control system |
| CN204060705U (en) * | 2014-07-04 | 2014-12-31 | 西南交通大学 | The real-time Weighing mechanism of shield-tunneling construction dregs |
| CN104373131A (en) * | 2014-11-04 | 2015-02-25 | 中交第二航务工程局有限公司 | Construction method of earth pressure balance shield tunneling machine muck pressure maintaining pumping device |
| CN105604556A (en) * | 2015-12-29 | 2016-05-25 | 上海隧道工程有限公司 | System and method for controlling front soil pressure balance of quasi-rectangular shield |
| JP2017096049A (en) * | 2015-11-27 | 2017-06-01 | 株式会社安藤・間 | Property evaluation and determination method for excavated sediment in chamber used with various types of excavation methods, and property evaluation and determination method for soil at working face in front of cutter head |
| CN108343441A (en) * | 2017-12-21 | 2018-07-31 | 北方重工装备（沈阳）有限公司 | A kind of auxiliary pressurize method for balancing earth-pressure shielding machine |
| CN108533280A (en) * | 2018-06-27 | 2018-09-14 | 上海城建市政工程（集团）有限公司 | The control system and its working method of large section earth pressure balance box culvert development machine |
| CN110486026A (en) * | 2019-09-05 | 2019-11-22 | 中铁工程装备集团有限公司 | A kind of support pressure control system |
| CN110500108A (en) * | 2019-09-24 | 2019-11-26 | 中国电建集团铁路建设有限公司 | A kind of novel balancing earth-pressure shielding machine and working method |
| CN210033440U (en) * | 2019-06-12 | 2020-02-07 | 厦门厦工中铁重型机械有限公司 | Grease lubricating and injecting system for shield machine |
| CN111075465A (en) * | 2019-12-20 | 2020-04-28 | 中铁工程装备集团有限公司 | Push bench that can be used to three lane rectangle tunnel constructions |
| CN212040934U (en) * | 2019-12-19 | 2020-12-01 | 钢城集团凉山瑞海实业有限公司 | Automatic quantitative start-stop feeding device for slag crushing production |
-
2021
- 2021-06-11 CN CN202110655076.8A patent/CN113775352B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074194A (en) * | 1993-06-17 | 1995-01-10 | Fujita Corp | Control method for water stopping and earth retaining in mud pressure shield machine |
| JPH07260666A (en) * | 1994-03-17 | 1995-10-13 | Sumitomo Heavy Ind Ltd | Soil nature measurement device |
| JP2000064784A (en) * | 1998-08-19 | 2000-02-29 | Komatsu Ltd | Tunnel boring machine |
| JP2003097180A (en) * | 2001-09-20 | 2003-04-03 | Komatsu Ltd | Shield machine |
| CN101798933A (en) * | 2010-04-13 | 2010-08-11 | 同济大学 | Simulation test system for soil pressure balance shielding screw conveyer |
| CN103775096A (en) * | 2014-02-19 | 2014-05-07 | 粤水电轨道交通建设有限公司 | Shield launching method for soft earth layer |
| CN103821529A (en) * | 2014-03-12 | 2014-05-28 | 上海市机械施工集团有限公司 | Earth pressure balance control system of rectangular shield tunneling machine and method of earth pressure balance control system |
| CN204060705U (en) * | 2014-07-04 | 2014-12-31 | 西南交通大学 | The real-time Weighing mechanism of shield-tunneling construction dregs |
| CN104373131A (en) * | 2014-11-04 | 2015-02-25 | 中交第二航务工程局有限公司 | Construction method of earth pressure balance shield tunneling machine muck pressure maintaining pumping device |
| JP2017096049A (en) * | 2015-11-27 | 2017-06-01 | 株式会社安藤・間 | Property evaluation and determination method for excavated sediment in chamber used with various types of excavation methods, and property evaluation and determination method for soil at working face in front of cutter head |
| CN105604556A (en) * | 2015-12-29 | 2016-05-25 | 上海隧道工程有限公司 | System and method for controlling front soil pressure balance of quasi-rectangular shield |
| CN108343441A (en) * | 2017-12-21 | 2018-07-31 | 北方重工装备（沈阳）有限公司 | A kind of auxiliary pressurize method for balancing earth-pressure shielding machine |
| CN108533280A (en) * | 2018-06-27 | 2018-09-14 | 上海城建市政工程（集团）有限公司 | The control system and its working method of large section earth pressure balance box culvert development machine |
| CN210033440U (en) * | 2019-06-12 | 2020-02-07 | 厦门厦工中铁重型机械有限公司 | Grease lubricating and injecting system for shield machine |
| CN110486026A (en) * | 2019-09-05 | 2019-11-22 | 中铁工程装备集团有限公司 | A kind of support pressure control system |
| CN110500108A (en) * | 2019-09-24 | 2019-11-26 | 中国电建集团铁路建设有限公司 | A kind of novel balancing earth-pressure shielding machine and working method |
| CN212040934U (en) * | 2019-12-19 | 2020-12-01 | 钢城集团凉山瑞海实业有限公司 | Automatic quantitative start-stop feeding device for slag crushing production |
| CN111075465A (en) * | 2019-12-20 | 2020-04-28 | 中铁工程装备集团有限公司 | Push bench that can be used to three lane rectangle tunnel constructions |
Non-Patent Citations (3)
| Title |
|---|
| 土压平衡与TBM双模式盾构施工技术;陈贝贝;刘恒;吕专真;郑伟;;建筑机械化(04);全文 * |
| 土压平衡盾构螺旋输送机排土控制分析;胡国良;胡绍华;龚国芳;杨华勇;;工程机械(第04期);全文 * |
| 大断面矩形掘进机土压平衡控制技术探究;薛广记;建筑机械化(第10期);41-45 * |
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