CN102331767A - Synchronous computer controller device for overall tension and construction method - Google Patents
Synchronous computer controller device for overall tension and construction method Download PDFInfo
- Publication number
- CN102331767A CN102331767A CN201110233872A CN201110233872A CN102331767A CN 102331767 A CN102331767 A CN 102331767A CN 201110233872 A CN201110233872 A CN 201110233872A CN 201110233872 A CN201110233872 A CN 201110233872A CN 102331767 A CN102331767 A CN 102331767A
- Authority
- CN
- China
- Prior art keywords
- stretch
- draw
- control
- hydraulic
- tension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Fluid-Pressure Circuits (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a synchronous computer controller device for overall tension and a construction method. The device comprises a mechanical system, a hydraulic system and a control system, wherein the mechanical system comprises a tensioned space cable structure, a steel tension cable and a tension tool, wherein the steel tension cable is connected with the tensioned space cable structure and the tension tool respectively; the hydraulic system comprises a hydraulic pump station, a hydraulic jack group and various hydraulic valves; the hydraulic jacks are connected with the hydraulic pump station; tensile force is applied to the tension tool; the control system comprises a computer and a main control cabinet; the main control cabinet is connected with a computer, the hydraulic system and the mechanical system respectively; and the main control cabinet comprises a communication control board, a PLC (Programmable Logic Controller), a phase sequence control relay, various interface boards, a transmission line and a remote monitoring sensor. The device has the advantages of simple manufacturing process, economical efficiency, reasonable manufacturing cost, easiness and convenience for operating, high synchronous control accuracy and the like.
Description
Technical field
The present invention relates to build the stretching construction technical field, particularly relate to a kind of Prestressed Space structural entity tensioning equipment and construction method.
Background technology
In modern times in the heavy construction roof system rope web frame, traditional method of setting up all round victory framing scaffold construction roof system had both occupied other operations constructions below the very large spacial influence roof system, had wasted wide variety of materials again, had spun out construction period; The construction method of modern lifting roof system rope net need turn round simultaneously with ten several loop wheel machines and could satisfy structure construction and architectural design requirement, certainly will drop into very big fund, increases construction cost.Above-mentioned two kinds of construction methods all not as adopt numerous hydraulic jack (quantity look roof system radially rope net quantity and decide) synchronous integral tension construction method.
Prestressed cable structures is how to accomplish the simultaneous tension operation to the biggest problem of integral tension: be installed in nearly hundred hydraulic jack on the outer shroud girder steel heavy frame node place tens road drag-lines; Load synchronously slowly, by looking for type (simulation calculation raise and extend) in proportion; In roof system rope net stretch-draw forming process, the stress difference in each retroaction force and offset variable are all also handled the action of removing to adjust tensioning equipment through draft procedure through the computing machine that feeds back to of sensor.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of computing machine synchro control apparatus and construction method of integral tension, to realize the simultaneous tension operation of prestressed cable structures to integral tension.
For achieving the above object, the technical scheme of the embodiment of the invention provides a kind of computing machine synchro control apparatus of integral tension, and said device comprises mechanical system, hydraulic system and control system; Said mechanical system comprises that by stretch-draw Spatial Cable structure (6), steel cable (7), stretch-draw frock (8) said steel cable (7) is connected with stretch-draw frock (8) by stretch-draw Spatial Cable structure (6) with said respectively; Said hydraulic system comprises hydraulic power unit (3), hydraulic jack crowd (4) and various hydraulic valve, and said hydraulic jack (4) is connected with said hydraulic power unit (3), and stretching force is applied on the said stretch-draw frock (8); Said control system comprises computing machine (1) and main control cabinet (2), and said main control cabinet (2) is connected with mechanical system with computing machine (1), hydraulic system respectively; Said main control cabinet (2) comprises Communication Control plate, PLC controller, phase sequence pilot relay, various interface plate, transmission line and remote monitoring sensor.
Wherein, Said control system also comprises the manual control enclosure of emergency processing (5); The manual control enclosure of said emergency processing (5) is connected to said main control cabinet (2), and the manual control enclosure of said emergency processing (5) comprises anxious total control switch (5.1), manual stretch-draw executive button (5.2), control manual PLC functional switch (5.3), stretch-draw lifting jack front end ground tackle switch (5.4), stretch-draw lifting jack master cylinder switch (5.5), stretch-draw lifting jack rear end ground tackle switch (5.6) and the stretch-draw lifting jack marshalling SS (5.7) of stopping.
Wherein, said hydraulic jack crowd (4) comprises many group hydraulic jack, realizes many steel cable simultaneous tensions.
Wherein, can comprise 80 groups of hydraulic jack at most among the said hydraulic jack crowd (4).
Wherein, be mounted with pressure transducer (4.2), lifting jack displacement transducer (4.3) on the said hydraulic jack and near switch (4.4), the control area is 3000m when wired control model, synchronous control accuracy is less than ± 5mm.
Wherein, said hydraulic power unit (3) comprises hydraulic circuit control electromagnetic valve (3.1), pumping plant main oil pump body (3.2) and pumping plant auxiliary oil pump body (3.3).
Wherein, said main control cabinet (2) comprises that specifically ANY CAN remote signal transmission control panel (2.1), PLC controller (2.2), pilot relay (2.3), star triangle start contactor (2.4), safety guard (2.5), long-distance displacement sensor port (2.6), remote signal input and output ECP Extended Capabilities Port (2.7), hydraulic power unit solenoid control port (2.8), lifting jack displacement signal input port (2.9), jack pressure signal input port (2.10), lifting jack are near switch port (2.11), the manual control enclosure port of emergency processing (2.12).
Wherein, said safety guard (2.5) comprises breaker protector (2.5.1), phase sequence relay (2.5.2), overheat protector (2..5.3) and the anxious protector (2..5.4) that stops.
Wherein, said main control cabinet (2) adopts the CAN bus to carry out data transmission.
The technical scheme of the embodiment of the invention also provides a kind of construction method of computing machine synchro control apparatus of integral tension, said method comprising the steps of:
A, according to selecting jacking equipment by stretch-draw Spatial Cable architectural feature and to the requirement of stretching force;
The stretch-draw frock that B, Design and Machining and lifting jack are supporting is assembled into said stretch-draw frock on the lifting jack and steel cable of stretch-draw; And hydraulic power unit and integral tension lifting jack connected into asphalt network with oil pipe, the action of inspection ground tackle reversal valve, the action of telescoping cylinder reversal valve, stop valve action, proportioning valve action, and debug, go out cylinder respectively and return the preparatory stretch-draw of cylinder and meet construction technical requirement;
C, synchronous tension main control cabinet, hydraulic power unit and integral tension lifting jack are connected into circuit network;
D, jack pressure sensor and lifting jack displacement transducer and the manual control enclosure of emergency processing are linked in the synchro control network; Through the ground tackle state sensor ground tackle status signal is passed to main control computer, measure the stroke of stretch-draw oil cylinder through the oil cylinder stroke sensor in real time;
E, carry out integral tension construction emulation checking computations, simulation synchronous tension work progress, and take out calculated value under the crucial construction operating mode as theoretical controlled variable;
F, whole synchronous tension primary operation may further comprise the steps:
F1, the total control of startup switch, each drives the oil pump entry into service;
F2, start manual control enclosure, send instruction to the PLG controller, the oil cylinder working-pressure of PLG controller control jack cluster rises, the integral tension operation beginning of tens drag-lines of hydraulic oil cylinder driving;
F3, when the lifting jack stretch value reaches predefined length, manually control enclosure stops the stretch-draw operation;
F4, carry out integral tension system standby inspection and emergent tight stop system inspection;
G, whole synchronous tension complete operation may further comprise the steps:
G1, controlling computer start auto-programming, and the computing machine primary control program sends instruction through the serial communication plate to the PLG controller, the integral tension operation beginning of tens drag-lines of PLG controller control hydraulic oil cylinder driving;
G2, stretch-draw lifting jack traction anchor head radially slowly moving along loop configuration; During very heavy liftout tank full stroke, limit switch starts pumping plant branch line oil circuit pressure, and the rear end ground tackle is pinned automatically, and lifting jack returns cylinder and pins the front end ground tackle again and open the rear end ground tackle simultaneously then; Circulation reaches the synchronous regime of integral tension displacement so repeatedly;
G3, when the accumulation of the local pressure difference of stretch-draw lifting jack and displacement difference surpasses predefined number percent, computing machine is according to the signal of pressure transducer with the displacement transducer feedback, local lifting jack adjustment stretch-draw waited for wholely carried out tension operation again after synchronous;
In G4, the integral tension operating process, measure the bit-type of whole rope web frame through laser total station, as the macro check foundation;
Behind H, the integral tension EO, carry out structure detection at once, and compensate stretch-draw adjustment configuration state; The auto-programming of last controlling computer is closed the oil circuit solenoid valve and is stopped very heavy liftout tank stretch-draw action, closes the pumping plant electrical source of power again, progressively removes sync control device, and integral tension finishes.
Compared with prior art, technical scheme of the present invention has following advantage:
1, device of the present invention has realized that large-sized prestress Spatial Cable structure " turns parts into the whole " construction method of " settling at one go ".And the expanded range of tension stress is arrived thousand Ns of 40000-160000.This installs advanced and reasonable design, and capacity is bigger, and computing velocity is fast, and computational accuracy is high, and modular construction controls the reliability height.This Control System Design control area is 3000m when wired control model, and synchronous control accuracy is less than ± 5mm.
2, in the construction of heavy construction roof system rope web frame; Adopt numerous hydraulic jack (quantity look roof system radially rope net quantity and decide) synchronous integral tension construction method; Than traditional method of setting up all round victory framing scaffold construction roof system; Than the construction method of loop wheel machine lifting roof system rope net, practiced thrift wide variety of materials, shortened construction period.The space of integral tension construction does not influence other operations constructions below the roof system, reduces construction cost.
3, prestressed cable structures is the simultaneous tension operation to the great advantage of integral tension: be installed in nearly hundred hydraulic jack on the outer shroud girder steel heavy frame node place tens road drag-lines, slowly load synchronously, by looking for type (simulation calculation raise and extend) in proportion; In roof system rope net stretch-draw forming process, the stress difference in each retroaction force and offset variable are all also handled the action of removing to adjust tensioning equipment through draft procedure through the computing machine that feeds back to of sensor.
4, integral tension control device of the present invention master control board both can have been accepted the automatic command of computer, also can accept manual control enclosure commander like PLC controller under the case of emergency and remove to drive next stage execution components and parts.This control system stops tightly etc. that to power failure, overproof overload, maloperation, electromagnetic interference (EMI), pressure urgent counter-measure is all arranged.
5, this invention master controller pattern is provided with 16 tunnel simulating signals and 8 way word signals.The sensor means are complete, not only can detect the position signalling of stretch-draw point, also can monitor the load signal of each lifting jack and the status signal of stretch-draw oil cylinder.This Control System Design is 3000m when being mounted with pressure transducer (6) and lifting jack displacement transducer (7), control area in wired control model on the stretch-draw jack device, and synchronous control accuracy is less than ± 5mm.
This device has that manufacturing process is simple, economical cost is reasonable, and easy and simple to handle, synchronous control accuracy advantages of higher is particularly useful for large-scale stadium rope net house cap integral stretching construction.
Description of drawings
Fig. 1 is the structural representation of a kind of Prestressed Space structural entity tensioning equipment of the present invention.
Fig. 2 is each parts hardware synoptic diagram of main control cabinet of the present invention.
Fig. 3 is each part relation synoptic diagram of the manual control enclosure of emergency processing of the present invention.
Fig. 4 is a computing machine master control program ACP theory diagram of the present invention.
Fig. 5 is a PLC programmable controller program OCP theory diagram of the present invention.
Wherein, 1-computing machine and primary control program ACP, 2-main control cabinet, 2.1-ANY CAN remote signal transmission control panel, 2.2-PLC controller and can compile anxious the come in and go out output ECP Extended Capabilities Port, 2.8-hydraulic power unit solenoid control port, 2.9-lifting jack displacement signal input port, 2.10-jack pressure signal input port, 2.11-lifting jack of protector, 2.6-long-distance displacement sensor port, 2.7-remote signal that stop of executive routine OCP, 2.3-pilot relay, 2.4-star triangle start contactor, 2.5-safety guard, 2.5.1-breaker protector, 2.5.2-phase sequence relay, 2.5.3-overheat protector, 2.5.4-and control manual PLC functional switch, 5.4-stretch-draw lifting jack front end ground tackle switch, 5.5-stretch-draw lifting jack rear end ground tackle switch, 5.7-stretch-draw lifting jack marshalling SS, 6-by stretch-draw Spatial Cable structure, 7-steel cable, 8-stretch-draw frock near the anxious total control switch, the manual stretch-draw executive button of 5.2-, 5.3-of stopping of switch, the manual control enclosure of 5-emergency processing, 5.1-near switch port, the manual control enclosure port of 2.12-emergency processing, 3-hydraulic power unit set of equipments, 3.1-hydraulic circuit control electromagnetic valve, 3.2-pumping plant main oil pump body, 3.2-pumping plant auxiliary oil pump body, 4-integral tension lifting jack colony equipment, 4.1-lifting jack locking ground tackle, 4.2-jack pressure sensor, 4.3-lifting jack displacement transducer, 4.4-lifting jack.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Like Fig. 1, Fig. 2, shown in Figure 3, the computing machine synchro control apparatus of a kind of integral tension of the embodiment of the invention comprises mechanical system, hydraulic system and control system;
Said mechanical system comprises that by stretch-draw Spatial Cable structure 6, steel cable 7, stretch-draw frock 8 said steel cable 7 is connected with stretch-draw frock 8 by stretch-draw Spatial Cable structure 6 with said respectively;
Said hydraulic system comprises hydraulic power unit 3, hydraulic jack crowd 4 and various valve (proportioning valve, surplus valve etc.), and said hydraulic jack 4 one ends are connected with said hydraulic power unit 3, and an end is connected to said stretch-draw frock 8;
Said control system comprises computing machine 1 and main control cabinet 2, and said main control cabinet 2 is connected with computing machine 1, hydraulic system and mechanical system respectively;
Said main control cabinet 2 comprises Communication Control plate, PLC controller, phase sequence pilot relay, various interface plate, transmission line and remote monitoring sensor;
Said computing machine 1 is made up of control master routine, analog module and digital module etc.
Said control system also comprises the manual control enclosure 5 of emergency processing; The manual control enclosure 5 of said emergency processing is connected to said main control cabinet 2, and the manual control enclosure 5 of said emergency processing comprises anxious total control switch 5.1, the manually manual PLC functional switch of stretch-draw executive button 5.2, control 5.3, stretch-draw lifting jack front end ground tackle switch 5.4, stretch-draw lifting jack master cylinder switch (5.5), stretch-draw lifting jack rear end ground tackle switch 5.6 and the stretch-draw lifting jack marshalling SS 5.7 of stopping.
Said hydraulic jack crowd 4 comprises many group hydraulic jack, realizes many steel cable simultaneous tensions, can comprise 80 groups of hydraulic jack among the said hydraulic jack crowd 4 at most.
Be mounted with pressure transducer 4.2, lifting jack displacement transducer 4.3 on the said hydraulic jack and near switch 4.4, the control area is 3000m when wired control model, synchronous control accuracy is less than ± 5mm.
Said hydraulic power unit 3 comprises hydraulic circuit control electromagnetic valve 3.1, pumping plant main oil pump body 3.2 and pumping plant auxiliary oil pump body 3.3.
Said main control cabinet 2 specifically comprises ANY CAN remote signal transmission control panel 2.1; PLC controller 2.2; Pilot relay 2.3; Star triangle start contactor 2.4; Safety guard 2.5; Long-distance displacement sensor port 2.6; Remote signal input and output ECP Extended Capabilities Port 2.7; Hydraulic power unit solenoid control port 2.8; Lifting jack displacement signal input port 2.9; Jack pressure signal input port 2.10; Lifting jack is near switch port 2.11; The manual control enclosure port 2.12 of emergency processing.
Said safety guard 2.5 comprises breaker protector 2.5.1, phase sequence relay 2.5.2, overheat protector 2..5.3 and the anxious protector 2..5.4 that stops.
Said main control cabinet 2 adopts the CAN bus to carry out data transmission.
Device of the present invention is designed to the closed loop of reaction type, and design concept is advanced.The self-editing VB language control of computer installation master routine ACP, its 64 dual core processors, capacity is bigger, and computing velocity is fast, and computational accuracy is high.This device is modular construction, and reliability is high, is regarded as product of new generation.
The ANYCAN serial communication control panel of master control board system is research and development system voluntarily on finished chip any can 5000 bases.It is accepted computer instruction and removes to control PLC controller (programmable controller or intelligence interface).
Independently the executive routine OCP in the PLC controller of establishment master control board system goes control to carry out components and parts (contactor, relay, solenoid valve etc.) thus, to solve the stationary problem of pressure or displacement.
Master control board both can have been accepted the automatic command of computer, also can accept manual control enclosure commander like PLC controller under the case of emergency and remove to drive next stage execution components and parts
Device of the present invention is coordinated the application of force simultaneously through tens of cover hydraulic tensioning lifting jack, and tensioning Spatial Cable structure reaches design force and architectural image.Thereby this integral tension operating procedure must connect main control cabinet by computing machine to be operated hydraulically operated equipment (HOE) automatically and accomplishes synchronously.
The integral tension synchro control is a big system that combines mechanical system, hydraulic system, electric-control system, space structure design, computer-controlled comprehensive complicacy.The present invention is only combining to make the design of computing machine drive Electromechanical Control and the innovation of manufacturing on ripe mechanical system, hydraulic system and the space structure design basis.
On-site real-time network control system with the exploitation of CAN-BUS bussing technique.This computer control system can adapt to bad working environment, and has the computer control system alternating interface between man and computer.
Computing machine drives the core technology of Electromechanical Control in main control cabinet, and its hardware is: the ANYCAN Communication Control plate of master control board, independent research and self programming PLC controller; The software of core technology is: VB synchronous tension master control program and PLC in the computer program.
Prestressed Space structural entity stretch-draw sync control device, system is designed to the closed loop system of reaction type, and design concept is advanced.64 dual core processors of computer installation, capacity is bigger, and computing velocity is fast, and computational accuracy is high.This device is third generation product in the stretch-draw controller.The mechanical, electrical device of sync control device main control cabinet system is technical grade product, safe and reliable can the replacing by standardization.The lifting jack of this controller drives can expand to 80 points by 8, realizes that 80 total power of drag-line simultaneous tension are worth the target of 160000 kn.
This invention master controller pattern is provided with 16 tunnel simulating signals and maximum 64 way word signals.The sensor means are complete, not only can detect the position signalling of stretch-draw point, also can monitor the load signal of each lifting jack and the status signal of stretch-draw oil cylinder.This Control System Design is 3000m with lifting jack displacement transducer 4.3, control area being mounted with pressure transducer 4.2 on the stretch-draw jack device during in wired control model, and synchronous control accuracy is less than ± 5mm.
This control system stops tightly etc. that to power failure, overproof overload, maloperation, electromagnetic interference (EMI), pressure urgent counter-measure is all arranged.
Display alarm defencive function in Control Software is provided with the overproof warning in load and position, auto stop etc.Simultaneously important parameters such as load, position are shown and be convenient to operation and monitoring.
Step 1 is according to being selected jacking equipment (4), like: 1500kN * 72 by the technical requirement of stretch-draw Spatial Cable structure (6) characteristic and stretching force.Value of thrust and number of devices by the stretch-draw lifting jack are equipped with corresponding hydraulic power unit (3), and pumping plant requires: rated pressure 31.5 MPa flow 40L/min, < 20 KW confirm the mistake load protection of oil cylinder to power through electro-hydraulic proportional control technology.These equipment are distributed in around the steel perimeter beam by stayed structure axial location radially, and self-contained waiting drawn.
Step 2 is processed and the supporting heavy frame frock (8) of lifting jack by the Force Calculation and the structure institute size design that allows, and is assembled on the lifting jack (4) and steel cable (7) of stretch-draw.Hydraulic power unit (3) and integral tension lifting jack (4) are connected into asphalt network with oil pipe; The action of inspection ground tackle reversal valve, the action of telescoping cylinder reversal valve, stop valve action, proportioning valve action; And debug, go out cylinder respectively and return the preparatory stretch-draw of cylinder and meet construction technical requirement and (pumping station system pressure is transferred to 28 MPa; Ground tackle pressure is transferred to 10MPa, closes and presses 5 minutes, checks each pipeline.Start the ground tackle pump, ground tackle pressure is transferred to 4Mpa, whether the inspection ground tackle is locked or is opened).
Step 4 is advanced jack pressure sensor (4.2) and lifting jack displacement transducer (4.3) and the manual control enclosure of emergency processing (5) link in the synchro control network.Every table oil cylinder stroke sensor and two cover ground tackle sensors, each sensor signal correct transmission of inspection automatic control system, the original value of reading of data acquisition instrument is for future reference;
The ground tackle state sensor passes to main control computer through fieldbus with ground tackle status signal (ground tackle " pine " or ground tackle " tightly ").The oil cylinder stroke sensor: be used for measuring in real time the stroke of stretch-draw oil cylinder in 0～200mm, measuring error is ± 2mm.
Step 5 is carried out integral tension construction emulation checking computations, simulation synchronous tension work progress, and the calculated value under the crucial construction of the taking-up operating mode is as theoretical controlled variable.Construction emulation and arrangement and method for construction all will carry out technological demonstration, obtain the affirmation of designer and supervisor.Dispose labour and auxiliary plant etc. according to arrangement and method for construction;
Step 6, whole synchronous tension primary operation:
1) after the commander in chief of controlling computer receives operator's tensioning equipment power connection (red light is bright) " ready " report of each lifting jack driving oil pump, starts total control switch.At this moment respectively drive the oil pump entry into service, but oil circuit is the self-loopa state, supplies the solenoid valve of hydraulic oil for lifting jacks to close.
2) manually control enclosure starts, and it sends instruction PLG controller action, and the PLG controller instructs again carries out components and parts (open contactor, relay or open solenoid valve etc.).At this moment the oil cylinder working-pressure of jack cluster rises, the integral tension operation beginning of tens drag-lines of hydraulic oil cylinder driving.
3) the master control computer screen shows the force value and the displacement stretch value of each stretch-draw lifting jack.Start about five minutes, during the about 100mm of lifting jack stretch value, manually control enclosure stops the stretch-draw operation, and this moment, the oil pressure pumping plant did not cut out.
4) integral tension system standby inspection (emphasis inspection mechanical system and hydraulic system) was also held lotus 3-4 hour.Emergent tight stop system inspection: the tight guard's valve of master control cabinet, whole pumping plant action all can stop.
Step 7, whole synchronous tension complete operation:
1) operator of controlling computer had both observed the computer display screen data in above-mentioned preparatory stretch-draw and standby checking process, accepted the data of lifting jack operator report again, and compared with the simulation calculation data;
2) controlling computer starts auto-programming, computing machine primary control program ACP control ANY CAN serial communication plate, and ANY CAN serial communication plate control PLG controller, the PLG controller instructs again carries out components and parts (open contactor, relay or open solenoid valve etc.).The integral tension operation beginning of tens drag-lines of hydraulic oil cylinder driving.Computing machine master control program ACP theory diagram wherein of the present invention is as shown in Figure 4, and PLC programmable controller program OCP theory diagram of the present invention is as shown in Figure 5.
3) stretch-draw lifting jack traction anchor head is along radially slowly the moving of loop configuration, and limit switch starts pumping plant branch line oil circuit pressure the rear end ground tackle is pinned automatically during very heavy liftout tank full stroke, and lifting jack returns cylinder and pins the front end ground tackle again and open the rear end ground tackle simultaneously then.Circulation reaches the synchronous regime of integral tension displacement so repeatedly;
4) the master control computer screen shows the force value and the displacement stretch value of each stretch-draw lifting jack.The accumulation of local pressure difference and displacement difference was above 10% o'clock, and the signal that pressure transducer and displacement transducer feed back is carried out through Computer Processing and program, made local lifting jack adjustment stretch-draw wait integral body carry out tension operation again synchronously.
5) in the integral tension operating process, measure the bit-type of whole rope web frame through laser total station, as the macro check foundation.
Step 8 behind the integral tension EO, is carried out structure detection (stress and bit-type) at once, and compensates stretch-draw adjustment configuration state, image data and record.The auto-programming of last controlling computer is closed the oil circuit solenoid valve and is stopped very heavy liftout tank stretch-draw action, closes the pumping plant electrical source of power again, progressively removes sync control device by above-mentioned opposite sequential steps, and integral tension finishes.Technical scheme of the present invention has following advantage:
1, integral tension sync control device according to the invention has realized that large-sized prestress Spatial Cable structure " turns parts into the whole " construction method of " settling at one go ".And the expanded range of tension stress is arrived thousand Ns of 40000-160000.This installs advanced and reasonable design, and capacity is bigger, and computing velocity is fast, and computational accuracy is high, and modular construction controls the reliability height.This Control System Design control area is 3000m when wired control model, and synchronous control accuracy is less than ± 5mm.
2, in the construction of heavy construction roof system rope web frame; Adopt numerous hydraulic jack (quantity look roof system radially rope net quantity and decide) synchronous integral tension construction method; Than traditional method of setting up all round victory framing scaffold construction roof system; Than the construction method of loop wheel machine lifting roof system rope net, practiced thrift wide variety of materials, shortened construction period.The space of integral tension construction does not influence other operations constructions below the roof system, reduces construction cost.
3, prestressed cable structures is the simultaneous tension operation to the great advantage of integral tension: be installed in nearly hundred hydraulic jack on the outer shroud girder steel heavy frame node place tens road drag-lines, slowly load synchronously, by looking for type (simulation calculation raise and extend) in proportion; In roof system rope net stretch-draw forming process, the stress difference in each retroaction force and offset variable are all also handled the action of removing to adjust tensioning equipment through draft procedure through the computing machine that feeds back to of sensor.
4, the master control board of integral tension control device both can have been accepted the automatic command of computer, also can accept manual control enclosure commander like PLC controller under the case of emergency and remove to drive next stage execution components and parts.This control system stops tightly etc. that to power failure, overproof overload, maloperation, electromagnetic interference (EMI), pressure urgent counter-measure is all arranged.
5, this invention master controller pattern is provided with 16 tunnel simulating signals and maximum 64 way word signals.The sensor means are complete, not only can detect the position signalling of stretch-draw point, also can monitor the load signal of each lifting jack and the status signal of stretch-draw oil cylinder.This Control System Design is 3000m when being mounted with pressure transducer (6) and lifting jack displacement transducer (7), control area in wired control model on the stretch-draw jack device, and synchronous control accuracy is less than ± 5mm.
This device has that manufacturing process is simple, economical cost is reasonable, and easy and simple to handle, synchronous control accuracy advantages of higher is particularly useful for large-scale stadium rope net house cap integral stretching construction.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. the computing machine synchro control apparatus of an integral tension is characterized in that said device comprises mechanical system, hydraulic system and control system;
Said mechanical system comprises that by stretch-draw Spatial Cable structure (6), steel cable (7), stretch-draw frock (8) said steel cable (7) is connected with stretch-draw frock (8) by stretch-draw Spatial Cable structure (6) with said respectively;
Said hydraulic system comprises hydraulic power unit (3), hydraulic jack crowd (4) and various hydraulic valve, and said hydraulic jack (4) is connected with said hydraulic power unit (3), and stretching force is applied on the said stretch-draw frock (8);
Said control system comprises computing machine (1) and main control cabinet (2), and said main control cabinet (2) is connected with mechanical system with computing machine (1), hydraulic system respectively;
Said main control cabinet (2) comprises Communication Control plate, PLC controller, phase sequence pilot relay, various interface plate, transmission line and remote monitoring sensor.
2. the computing machine synchro control apparatus of integral tension as claimed in claim 1; It is characterized in that; Said control system also comprises the manual control enclosure of emergency processing (5); The manual control enclosure of said emergency processing (5) is connected to said main control cabinet (2), and the manual control enclosure of said emergency processing (5) comprises anxious total control switch (5.1), manual stretch-draw executive button (5.2), control manual PLC functional switch (5.3), stretch-draw lifting jack front end ground tackle switch (5.4), stretch-draw lifting jack master cylinder switch (5.5), stretch-draw lifting jack rear end ground tackle switch (5.6) and the stretch-draw lifting jack marshalling SS (5.7) of stopping.
3. the computing machine synchro control apparatus of integral tension as claimed in claim 1 is characterized in that, said hydraulic jack crowd (4) comprises many group hydraulic jack, realizes many steel cable simultaneous tensions.
4. the computing machine synchro control apparatus of integral tension as claimed in claim 3 is characterized in that, can comprise 80 groups of hydraulic jack among the said hydraulic jack crowd (4) at most.
5. like the computing machine synchro control apparatus of claim 3 or 4 described integral tensions; It is characterized in that; Be mounted with pressure transducer (4.2), lifting jack displacement transducer (4.3) on the said hydraulic jack and near switch (4.4); The control area is 3000m when wired control model, and synchronous control accuracy is less than ± 5mm.
6. the computing machine synchro control apparatus of integral tension as claimed in claim 1 is characterized in that, said hydraulic power unit (3) comprises hydraulic circuit control electromagnetic valve (3.1), pumping plant main oil pump body (3.2) and pumping plant auxiliary oil pump body (3.3).
7. the computing machine synchro control apparatus of integral tension as claimed in claim 1; It is characterized in that said main control cabinet (2) comprises that specifically ANY CAN remote signal transmission control panel (2.1), PLC controller (2.2), pilot relay (2.3), star triangle start contactor (2.4), safety guard (2.5), long-distance displacement sensor port (2.6), remote signal input and output ECP Extended Capabilities Port (2.7), hydraulic power unit solenoid control port (2.8), lifting jack displacement signal input port (2.9), jack pressure signal input port (2.10), lifting jack are near switch port (2.11), the manual control enclosure port of emergency processing (2.12).
8. the computing machine synchro control apparatus of integral tension as claimed in claim 7; It is characterized in that said safety guard (2.5) comprises breaker protector (2.5.1), phase sequence relay (2.5.2), overheat protector (2..5.3) and the anxious protector (2..5.4) that stops.
9. the computing machine synchro control apparatus of integral tension as claimed in claim 1 is characterized in that, said main control cabinet (2) adopts the CAN bus to carry out data transmission.
10. the construction method of the computing machine synchro control apparatus of an integral tension is characterized in that, said method comprising the steps of:
A, according to selecting jacking equipment by stretch-draw Spatial Cable architectural feature and to the requirement of stretching force;
The stretch-draw frock that B, Design and Machining and lifting jack are supporting is assembled into said stretch-draw frock on the lifting jack and steel cable of stretch-draw; And hydraulic power unit and integral tension lifting jack connected into asphalt network with oil pipe, the action of inspection ground tackle reversal valve, the action of telescoping cylinder reversal valve, stop valve action, proportioning valve action, and debug, go out cylinder respectively and return the preparatory stretch-draw of cylinder and meet construction technical requirement;
C, synchronous tension main control cabinet, hydraulic power unit and integral tension lifting jack are connected into circuit network;
D, jack pressure sensor and lifting jack displacement transducer and the manual control enclosure of emergency processing are linked in the synchro control network; Through the ground tackle state sensor ground tackle status signal is passed to main control computer, measure the stroke of stretch-draw oil cylinder through the oil cylinder stroke sensor in real time;
E, carry out integral tension construction emulation checking computations, simulation synchronous tension work progress, and take out calculated value under the crucial construction operating mode as theoretical controlled variable;
F, whole synchronous tension primary operation may further comprise the steps:
F1, the total control of startup switch, each drives the oil pump entry into service;
F2, start manual control enclosure, send instruction to the PLG controller, the oil cylinder working-pressure of PLG controller control jack cluster rises, the integral tension operation beginning of tens drag-lines of hydraulic oil cylinder driving;
F3, when the lifting jack stretch value reaches predefined length, manually control enclosure stops the stretch-draw operation;
F4, carry out integral tension system standby inspection and emergent tight stop system inspection;
G, whole synchronous tension complete operation may further comprise the steps:
G1, controlling computer start auto-programming, and the computing machine primary control program sends instruction through the serial communication plate to the PLG controller, the integral tension operation beginning of tens drag-lines of PLG controller control hydraulic oil cylinder driving;
G2, stretch-draw lifting jack traction anchor head radially slowly moving along loop configuration; During very heavy liftout tank full stroke, limit switch starts pumping plant branch line oil circuit pressure, and the rear end ground tackle is pinned automatically, and lifting jack returns cylinder and pins the front end ground tackle again and open the rear end ground tackle simultaneously then; Circulation reaches the synchronous regime of integral tension displacement so repeatedly;
G3, when the accumulation of the local pressure difference of stretch-draw lifting jack and displacement difference surpasses predefined number percent, computing machine is according to the signal of pressure transducer with the displacement transducer feedback, local lifting jack adjustment stretch-draw waited for wholely carried out tension operation again after synchronous;
In G4, the integral tension operating process, measure the bit-type of whole rope web frame through laser total station, as the macro check foundation;
Behind H, the integral tension EO, carry out structure detection at once, and compensate stretch-draw adjustment configuration state; The auto-programming of last controlling computer is closed the oil circuit solenoid valve and is stopped very heavy liftout tank stretch-draw action, closes the pumping plant electrical source of power again, progressively removes sync control device, and integral tension finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102338729A CN102331767B (en) | 2011-08-15 | 2011-08-15 | Synchronous computer controller device for overall tension and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102338729A CN102331767B (en) | 2011-08-15 | 2011-08-15 | Synchronous computer controller device for overall tension and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102331767A true CN102331767A (en) | 2012-01-25 |
| CN102331767B CN102331767B (en) | 2013-01-02 |
Family
ID=45483572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102338729A Expired - Fee Related CN102331767B (en) | 2011-08-15 | 2011-08-15 | Synchronous computer controller device for overall tension and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102331767B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049880A (en) * | 2016-05-26 | 2016-10-26 | 中铁二十三局集团轨道交通工程有限公司 | Automatic control system and method of pre-tensioning prestress construction |
| CN106525301A (en) * | 2016-12-22 | 2017-03-22 | 南京大学 | Force and displacement measurement method and sensor based on distributed optical fiber sensing |
| CN107882529A (en) * | 2017-12-15 | 2018-04-06 | 天水电气传动研究所有限责任公司 | A kind of control system and method for being used to protect oil-well rig top to drive inner blowout preventer |
| CN108964375A (en) * | 2018-05-30 | 2018-12-07 | 大唐东北电力试验研究院有限公司 | A kind of generator core intelligent hydraulic tension device |
| CN111560850A (en) * | 2020-04-26 | 2020-08-21 | 上海林同炎李国豪土建工程咨询有限公司 | Integral synchronous tensioning treatment method for stay cable of cable-stayed bridge |
| CN111734714A (en) * | 2020-06-15 | 2020-10-02 | 柳州铁道职业技术学院 | Oil cylinder detection control system and method for hydraulic pump station of hump marshalling yard parking device |
| CN112454317A (en) * | 2020-11-20 | 2021-03-09 | 爱佩仪测量设备有限公司 | Power-assisted scribing module for three-coordinate measuring and scribing machine |
| CN113235939A (en) * | 2021-05-21 | 2021-08-10 | 中冶建筑研究总院有限公司 | Force and displacement double-control prestress tensioning equipment combining hydraulic sensing and flow acquisition |
| CN113733343A (en) * | 2021-11-04 | 2021-12-03 | 中铁九局集团第三建设有限公司 | All-round stretch-draw monitoring auxiliary system of pretensioning track board production line |
| CN116002553A (en) * | 2023-02-10 | 2023-04-25 | 北京市建筑工程研究院有限责任公司 | Intelligent synchronous hydraulic lifting system suitable for cable structure and use method |
| CN117306874A (en) * | 2023-10-24 | 2023-12-29 | 北京市建筑工程研究院有限责任公司 | Automatic loading device for prestress structural cable and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01192700A (en) * | 1988-01-27 | 1989-08-02 | Toshiba Corp | Elevating device for table |
| CN2384931Y (en) * | 1998-03-09 | 2000-06-28 | 柳州市建筑器具厂 | Flat-anchor front-retained lifting jack |
| CN202196317U (en) * | 2011-08-15 | 2012-04-18 | 北京市建筑工程研究院有限责任公司 | Integral stretch-draw computer synchronous controller device |
-
2011
- 2011-08-15 CN CN2011102338729A patent/CN102331767B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01192700A (en) * | 1988-01-27 | 1989-08-02 | Toshiba Corp | Elevating device for table |
| CN2384931Y (en) * | 1998-03-09 | 2000-06-28 | 柳州市建筑器具厂 | Flat-anchor front-retained lifting jack |
| CN202196317U (en) * | 2011-08-15 | 2012-04-18 | 北京市建筑工程研究院有限责任公司 | Integral stretch-draw computer synchronous controller device |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049880A (en) * | 2016-05-26 | 2016-10-26 | 中铁二十三局集团轨道交通工程有限公司 | Automatic control system and method of pre-tensioning prestress construction |
| CN106049880B (en) * | 2016-05-26 | 2019-09-20 | 中铁二十三局集团轨道交通工程有限公司 | A kind of pretensioned prestressing construction automatic control system and method |
| CN106525301A (en) * | 2016-12-22 | 2017-03-22 | 南京大学 | Force and displacement measurement method and sensor based on distributed optical fiber sensing |
| CN106525301B (en) * | 2016-12-22 | 2023-01-06 | 南京大学 | Force and displacement measuring method and sensor based on distributed optical fiber sensing |
| CN107882529A (en) * | 2017-12-15 | 2018-04-06 | 天水电气传动研究所有限责任公司 | A kind of control system and method for being used to protect oil-well rig top to drive inner blowout preventer |
| CN107882529B (en) * | 2017-12-15 | 2023-09-22 | 天水电气传动研究所有限责任公司 | Control system and method for protecting internal blowout preventer of top drive of petroleum drilling machine |
| CN108964375A (en) * | 2018-05-30 | 2018-12-07 | 大唐东北电力试验研究院有限公司 | A kind of generator core intelligent hydraulic tension device |
| CN108964375B (en) * | 2018-05-30 | 2024-02-06 | 大唐保定热电厂 | Intelligent hydraulic tensioning device for generator iron core |
| CN111560850B (en) * | 2020-04-26 | 2021-07-02 | 上海林同炎李国豪土建工程咨询有限公司 | Integral synchronous tensioning treatment method for stay cable of cable-stayed bridge |
| CN111560850A (en) * | 2020-04-26 | 2020-08-21 | 上海林同炎李国豪土建工程咨询有限公司 | Integral synchronous tensioning treatment method for stay cable of cable-stayed bridge |
| CN111734714A (en) * | 2020-06-15 | 2020-10-02 | 柳州铁道职业技术学院 | Oil cylinder detection control system and method for hydraulic pump station of hump marshalling yard parking device |
| CN112454317A (en) * | 2020-11-20 | 2021-03-09 | 爱佩仪测量设备有限公司 | Power-assisted scribing module for three-coordinate measuring and scribing machine |
| CN113235939A (en) * | 2021-05-21 | 2021-08-10 | 中冶建筑研究总院有限公司 | Force and displacement double-control prestress tensioning equipment combining hydraulic sensing and flow acquisition |
| CN113733343A (en) * | 2021-11-04 | 2021-12-03 | 中铁九局集团第三建设有限公司 | All-round stretch-draw monitoring auxiliary system of pretensioning track board production line |
| CN116002553A (en) * | 2023-02-10 | 2023-04-25 | 北京市建筑工程研究院有限责任公司 | Intelligent synchronous hydraulic lifting system suitable for cable structure and use method |
| CN117306874A (en) * | 2023-10-24 | 2023-12-29 | 北京市建筑工程研究院有限责任公司 | Automatic loading device for prestress structural cable and control method thereof |
| CN117306874B (en) * | 2023-10-24 | 2024-05-24 | 北京市建筑工程研究院有限责任公司 | Automatic loading device for prestress structural cable and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102331767B (en) | 2013-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102331767B (en) | Synchronous computer controller device for overall tension and construction method | |
| CN100478813C (en) | Hydraulic hoisting monitor system and its use in hydraulic hoisting control | |
| CN104762977B (en) | Pattern foundation pit supporting structure power real-time control system and method | |
| CN104762976B (en) | Foundation ditch axial force of the supports following control system and method | |
| CN112650115B (en) | Bridge girder erection machine active safety monitoring system | |
| CN101851924B (en) | Convenient rapid supporting loading and unloading mechanism and supporting loading and unloading method | |
| CN103790234A (en) | Large-span truss hydraulic multi-point synchronous lifting construction method | |
| CN212899239U (en) | Steel support axial force servo system | |
| CN108252980A (en) | A kind of foundation pit deformation Precise control device and control method | |
| CN102774760A (en) | Control method for pulling arm bushing out of crane single cylinder bolt system | |
| CN103334979B (en) | Double hydraulic cylinder synchronous control system and apply the engineering machinery of this control system | |
| CN103955199A (en) | Intelligent informatization steel support remote real-time monitoring system based on Ethernet communication | |
| CN102999000B (en) | For the safety monitoring assembly of intelligence de-hackers | |
| CN202196317U (en) | Integral stretch-draw computer synchronous controller device | |
| CN210764118U (en) | Synchronous jacking system based on fuzzy control | |
| CN215053035U (en) | Novel intelligent servo force-protecting box equipment supported by profile steel | |
| CN101853026A (en) | Mobile diagnostic system device of deep foundation pit steel support axial-force adaptive system | |
| CN105824288A (en) | Pin-type lifting device control system of ocean engineering platform | |
| CN103644173A (en) | Automatic hydraulic servo system loop flushing method and electromagnetic directional valve control power supply device | |
| CN110240067B (en) | Shore bridge tilting-hanging integrated electrohydraulic control system and control method thereof | |
| CN109721011B (en) | Modular redundancy control method and system for aerial work vehicle | |
| PL223560B1 (en) | Method for building a boiler installation | |
| CN108584762B (en) | Tool anchor device capable of being used for replacing penetrating jack in use | |
| CN201943005U (en) | Synchronous stretching system of prestressing force | |
| CN215333758U (en) | Full-automatic integrated intelligent steel supporting system without pipe and wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |