CN101259940A - Large tonnage backstay multi-cable wind-rope simultaneously pretightening or releasing system and method thereof - Google Patents
Large tonnage backstay multi-cable wind-rope simultaneously pretightening or releasing system and method thereof Download PDFInfo
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Abstract
The invention provides a large tonnage mast multi-cable rope synchronous pre-tightening and loosening system and a method thereof. The large tonnage mast multi-cable rope synchronous pre-tightening and loosening system which consists of N cable ropes, two translation jacks with displacement sensors, N+2 hydraulic pump stations, and one set of control system and uses a computer network synchronous control technique to lead a plurality of cable ropes of the mast to be tightened or loosened at the same time; namely, the control system judges the pre-tightening or loosening state that each rope cable is supposed to be arranged according to the mast moving direction signals transmitted back by the displacement sensor, and sends the pre-tightening and loosening signals of each cable rope to the execution mechanism of the system, namely a hydraulic jack which controls the synchronous pre-tightening or loosening of a plurality of cable ropes; furthermore, the pre-tightening force of each cable rope is worked out in real-time by a computer according to the pressure value and the calibration value of all jacks which are transmitted back by the pressure sensor, and is then controlled by controlling the flux of the hydraulic pump station. The method leads the mast to always keep the balance state of forces, and leads the stress distribution of the cable rope to be reasonable and mast to be stable.
Description
Technical field:
The method that the present invention relates to a kind of large-tonnage mast guy rope simultaneously pretightening or relaxation system and large-tonnage mast guy rope simultaneously pretightening or loosen, particularly a kind of large-tonnage mast guy rope simultaneously pretightening that adopts the computing machine synchro control or relaxation system and large-tonnage mast guy rope simultaneously pretightening or the method for loosening.
Background technology:
Cable wind rope is the important component part in great hoisting engineering middle mast tackling system, plays a part to stablize mast and bears part load in the mast hoisting and hanging.Before the mast carrying, must impose an amount of predetermincd tension to the cable wind rope of mast, its objective is after mast loads, still to guarantee the lifting parameter of being scheduled to substantially, as upright mast do not produce allowed band crooked, tiltedly upright mast still can keep the leaning angle be scheduled to etc. substantially.
The general wire tensioner that is connected in series with in the cable wind rope that adopts of the pretension of traditional cable wind rope, chain block, polyspast are drawn with winch.The large-tonnage mast is all established 6～8 cable wind ropes, traditional cable wind rope pretension is at independently a certain, each predetermincd tension can only rely on operator's experience to be controlled, adopt this method to occur mast easily and lose stable situation, particularly when carrying out the lifting of some large-tonnage reaction towers, because its its mast of back in place needs the certain distance of translation could dismantle mast, the tradition movable mast adopts gradation to move as shown in Figure 1, the concrete operations step has two kinds, and a kind of is the mobile raft-towing behind the mast of inclining earlier; Another kind is the mobile raft-towing hypsokinesis mast of elder generation.No matter adopt which kind of operation, mast is all wanted to move on to position B from position A earlier, behind the adjustment cable wind rope, moves on to position C from position B again, in this process, the adjusting of its cable wind rope power is difficult to realize that many are regulated simultaneously, and the predetermincd tension size is estimated by the operator fully, is difficult to guarantee consistent, thereby less stable, if surpass 100 meters high, the nearly 10000 tons of masts of weight move, and its stability more can't guarantee; In practice of construction, the mast of hoisting large-size retort far surpasses 100 meters, thereby the movable mast difficulty is very big.
Summary of the invention:
The technical problem to be solved in the present invention is: the method that a kind of many guy rope simultaneously pretightenings of large-tonnage mast that adopt the computing machine synchro control or relaxation system and many guy rope simultaneously pretightenings of large-tonnage mast is provided or loosens, make that mast remains the equilibrium of forces state in moving, the stressed distribution of cable wind rope is reasonable, mast stable, to solve the problem of the less stable that pre-clamping method that above-mentioned mast adopts traditional cable wind rope in moving exists.
The technical scheme that solves the problems of the technologies described above is: many guy rope simultaneously pretightenings of a kind of large-tonnage mast or relaxation system, by N root cable wind rope, the translation jack of two band displacement pickups, N+2 platform hydraulic power unit, 1 cover control system is formed, every cable wind rope is made up of M bar tensioned prestressing bar, wherein all be in series with by earth anchor, bracing frame, the stretch-draw jack that has pressure sensor, the single cable wind rope tensioning equipment that anchor fitting and adaptor union are formed, control system is to include cable wind rope to loosen the computer remote control system that module and cable wind rope tighten up module, and N+2 platform hydraulic power unit links to each other with the translation jack of stretch-draw jack that has pressure sensor and band displacement pickup respectively by high pressure fuel pipe; Each displacement pickup, pressure sensor link to each other with the control system input end by circuit, and each hydraulic power unit links to each other with control system by control cable; The span of above-mentioned M, N is: 1≤M≤100, N is the even number between 2～20.
The further scheme of technical solution of the present invention is: be made up of last clamper, main top, lower gripper, spike as the stretch-draw jack of cable wind rope stretch-draw actuating unit in the system in the single cable wind rope tensioning equipment; On bracing frame, and an end of bracing frame links to each other with earth anchor by bearing pin the stretch-draw jack by bolt; The other end of bracing frame is unsettled, and in adaptor union, adaptor union maybe needs to strain the position by bearing pin with the mast upper end and links to each other anchor fitting with bolt; The M bar tensioned prestressing bar of forming cable wind rope passes anchor fitting, stretch-draw jack by the upper and lower clamper anchoring of anchor fitting, stretch-draw jack, and the span of above-mentioned M is: 1≤M≤100.
Another technical scheme of the present invention is: many guy rope simultaneously pretightenings of a kind of large-tonnage mast or the method for loosening, this method adopts that the present invention is above-mentioned to have many guy rope simultaneously pretightenings of large-tonnage mast or the relaxation system that translation jack, N+2 platform hydraulic power unit, the 1 cover control system of the cable wind rope of single cable wind rope tensioning equipment, two band displacement pickups are formed by the N root, utilize the computer network synchronous control technique, make many guy rope simultaneously pretightenings of mast or loosen; Concrete steps are: the mast moving direction signal that control system is passed back according to displacement pickup, pass through computer networking technology, judge in the N root cable wind rope that the 1st is tightened up or loosen to N/2 root cable wind rope, cooresponding with it N/2+1 root to the N root cable wind rope loosens or tightens up simultaneously, and each root cable wind rope tightened up and the signal that loosens sends to cable wind rope stretch-draw actuating unit--stretch-draw jack in the system, call simultaneously that cable wind rope tightens up program and cable wind rope loosens program, control is to many guy rope simultaneously pretightenings or loosen; Its predetermincd tension---be the size of the stretching force of stretch-draw jack, by the force value of the pressure sensor passback of computing machine basis on each stretch-draw jack on the N root cable wind rope and the calibration value of each jack, the predetermincd tension that calculates every cable wind rope in real time and born, and itself and cable wind rope are set predetermincd tension compare and calculate the predetermincd tension controlling quantity, and control by the flow of controlling each hydraulic power unit, under control system control, drive each electromagnetic valve action on the hydraulic power unit, the hydraulic power of its output drives the stretch-draw jack again and drives M bar tensioned prestressing bar and tighten up or loosen, thereby realizes tightening up or loosening of cable wind rope; The span of above-mentioned M, N is: 1≤M≤100, N is the even number between 2～20.
Among the present invention, the prestressing tendon of forming cable wind rope is steel strand or reinforcing bar, and wherein, it is a kind of that steel strand are best suited for.
Owing to adopt technique scheme, many guy rope simultaneously pretightenings of the present invention's large-tonnage mast or relaxation system and be used for many guy rope simultaneously pretightenings of large-tonnage mast or the method loosened has following beneficial effect:
One, make in the work progress, mast remains the equilibrium of forces state, mast is stable:
Many guy rope simultaneously pretightenings of large-tonnage mast of the present invention or relaxation system and many guy rope simultaneously pretightenings of large-tonnage mast or the method for loosening have adopted the calculating synchronous control technique, many guy rope simultaneously pretightenings that make mast with loosen, and can be synchronous with the raft-towing moving hormany of mast, make the large-tonnage mast remain the equilibrium of forces state, make large-scale mast keep stabilized conditions in real time, increased the stability of mast.
Two, the stressed distribution of cable wind rope is reasonable:
Because the pretension of cable wind rope has adopted hydraulic jack stretch-draw, and have pressure sensor on the stretch-draw jack again, can detect the size of the bearing capacity of every cable wind rope exactly, simultaneously, can realize the accurate adjusting of every cable wind rope predetermincd tension accurately according to the size of predefined power by computer controlled.
Three, cable wind rope has adopted the cable wind rope that many low loose high-intensity steel strand are formed, and holding capacity is big, flexible arrangement, and the cable wind rope predetermincd tension is unrestricted, can be satisfied with various large-scale masts (pylon) stability requirement.
Four, this system bulk is little, and method of operation is simple, every cable wind rope stretching force shows in real time, intuitively.
Below, in conjunction with the accompanying drawings and embodiments to the present invention's many guy rope simultaneously pretightenings of large-tonnage mast or relaxation system and be used for many guy rope simultaneously pretightenings of large-tonnage mast or the technical characterictic of the method loosened is further described.
Description of drawings:
Fig. 1: traditional mast shift method scheme drawing;
Fig. 2: the shift method of the mast of employing the present invention's many guy rope simultaneously pretightenings of large-tonnage mast or the method for loosening and the layout scheme drawing of cable wind rope;
Fig. 3: the structural representation of many guy rope simultaneously pretightenings of the large-tonnage mast of the embodiment of the invention one or relaxation system (cable wind rope only draws);
Fig. 4: the electrical schematic diagram of many guy rope simultaneously pretightenings of the present invention's large-tonnage mast or relaxation system and method;
Fig. 5: the single cable wind rope of many guy rope simultaneously pretightenings of the present invention's large-tonnage mast or the method loosened tightens up program flow diagram;
Fig. 6: the single cable wind rope of many guy rope simultaneously pretightenings of the present invention's large-tonnage mast or the method loosened loosens program flow diagram;
Fig. 7: the pressure control program flow diagram of the single cable wind rope of many guy rope simultaneously pretightenings of the present invention's large-tonnage mast or the method loosened.
Among the figure:
I, I
1, I
2... I
8-cable wind rope, II-mast, III-translation jack, IV, IV
1... IV
8-with the supporting hydraulic power unit of each stretch-draw jack, IV
9-with the supporting hydraulic power unit of translation jack; The V-control system, VI-high pressure fuel pipe, VII-control cable, VIII-mast base;
1-earth anchor, 2-bracing frame, 3-stretch-draw jack, 4-tensioned prestressing bar, 5-anchor fitting,
The 6-adaptor union, 7, the 8-bearing pin;
The last clamper of 31-; 32-master top; The 33-spike; The 34-lower gripper; The 35-bolt, 36-pressure sensor, 37-displacement pickup.
The specific embodiment:
Embodiment one:
Many guy rope simultaneously pretightenings of a kind of large-tonnage mast or relaxation system.
As Fig. 2, shown in Figure 3: this system is by 8 cable wind rope I that have single cable wind rope tensioning equipment
1, I
2... I
8The translation jack III of two band displacement pickups 37,10 hydraulic power unit IV, 1 cover control system V form, every cable wind rope I is made up of M bar tensioned prestressing bar 4, wherein all be in series with the single cable wind rope tensioning equipment of forming by earth anchor 1, bracing frame 2, the stretch-draw jack 3 that has pressure sensor 36, anchor fitting 5 and adaptor union 6, control system V includes cable wind rope to loosen the computer remote control system that module and cable wind rope tighten up module, wherein, hydraulic power unit IV
1... IV
8Link to each other hydraulic power unit IV with the stretch-draw jack 3 that has pressure sensor respectively by high pressure fuel pipe VI
9, IV
10(not drawing among the figure) links to each other with the translation jack III (only drawing among the figure 1) of two band displacement pickups 37 respectively by high pressure fuel pipe VI; Each displacement pickup 37, pressure sensor 36 link to each other with control system V input end by circuit, and each hydraulic power unit IV is by control cable VII link to each other with the output control terminal of control system V (referring to Fig. 4); The span of above-mentioned M is: 1≤M≤100.
Stretch-draw jack 3 as cable wind rope stretch-draw actuating unit in the single cable wind rope tensioning equipment is made up of last clamper 31, main top 32, lower gripper 34, spike 33; Stretch-draw jack 3 is fixed on the bracing frame 2 by spike 33 and bolt 35, and an end of bracing frame 2 links to each other with earth anchor 1 by bearing pin 8; The other end of bracing frame 2 is unsettled, and anchor fitting 5 usefulness bolt are in adaptor union 6, and adaptor union 6 maybe needs to strain the position by bearing pin 7 with mast II upper end and links to each other; M bar tensioned prestressing bar 4 passes anchor fitting 5, stretch-draw jack 3 by upper and lower clamper 31,34 anchorings of anchor fitting 5, stretch-draw jack 3, and the span of above-mentioned M is: 1≤M≤100.
Embodiment two:
A kind ofly be used for " many guy rope simultaneously pretightenings of large-tonnage mast or the method for loosening " that the large-tonnage mast moves construction.
This method adopts embodiment one described by 8 translation jack III (only drawing among the figure one) that have the cable wind rope I of single cable wind rope tensioning equipment, two band displacement pickups 37,10 many guy rope simultaneously pretightenings of large-tonnage mast or relaxation systems that hydraulic power unit IV, 1 cover control system V form, utilize the computer network synchronous control technique, make 4 guy rope simultaneously pretightenings of fixed mast or loosen, and corresponding 4 cable wind ropes in addition loosen or pretension simultaneously;
Concrete steps are: the mast moving direction signal that control system V passes back according to displacement pickup, by computer networking technology, judge I in 8 cable wind ropes
1Root to the I
4The root cable wind rope tightens up or loosens, simultaneously all the other cooresponding I
5Root to the I
8The root cable wind rope loosens or tightens up, and each root cable wind rope is tightened up and the signal that loosens sends to the actuating unit of system---and stretch-draw jack 3, call that cable wind rope tightens up program and cable wind rope loosens program simultaneously, control is to 8 guy rope simultaneously pretightenings or loosen; Its predetermincd tension---be the size of the stretching force of stretch-draw jack, by the force value of pressure sensor 36 passbacks of computing machine basis on each stretch-draw jack 3 on 8 cable wind ropes and the calibration value of each jack, the predetermincd tension that calculates every cable wind rope in real time and born is also set predetermincd tension with itself and cable wind rope and is compared and calculate the predetermincd tension controlling quantity and control by the flow of controlling each hydraulic power unit IV, under control system V control, drive hydraulic power unit IV
1... IV
8Go up each electromagnetic valve action, the hydraulic power of its output drives the stretch-draw jack again and drives M bar tensioned prestressing bar and tighten up or loosen, thereby realizes tightening up or loosening of cable wind rope; (referring to Fig. 2).
In many guy rope simultaneously pretightenings of above-mentioned large-tonnage mast or the method loosened, the step that described cable wind rope tightens up following (referring to Fig. 5):
Ssa1: it is tight up to casting anchor tightly to cast anchor;
Ssa2: cylinder contracts;
Ssa3: judge whether piston position arrives the 3# position, if no show then enters step ssa6;
Ssa4: after arriving the 3# position, cylinder contracts in the time of Song Shangmao;
Ssa5: anchor is up to last anchor pine on the pine;
Ssa6: judge whether piston position arrives the 1# position, if step ssa2 is then returned in no show;
Ssa7: after arriving the 1# position, tightly go up anchor;
Ssa8: whether anchor is tight in the judgement, if not tight, then returns step ssa7;
Ssa9: it is tight to go up anchor, stretches cylinder;
Ssa10: stretch and call the pressure monitor program in the cylinder process and monitor,
Ssa11: stretch and judge simultaneously in the cylinder process whether piston position arrives the 2# position,, then return step ssa9 if do not arrive;
Ssa12: after arriving the 2# position, Panasonic's anchor is stretched cylinder simultaneously up to the pine of casting anchor;
Ssa13: stretch and call the pressure monitor program in the cylinder process and monitor,
Ssa14: stretch the cylinder process and judge simultaneously whether piston position arrives the 4# position,, then return step ssa12 if do not arrive;
Ssa15: after arriving the 4# position, return step ssa1;
Above-mentioned: the 1# position refers to jack master cylinder lower limit,
The 2# position refers to jack master cylinder lower limit load transfer position,
The 3# position refers to jack master cylinder upper limit load transfer position,
The 4# position refers to jack master cylinder upper limit.
In many guy rope simultaneously pretightenings of above-mentioned large-tonnage mast or the method loosened, the step that described cable wind rope loosens following (referring to Fig. 6):
Ssb1: it is tight up to casting anchor tightly to cast anchor;
Ssb2: cylinder contracts;
Ssb3: judge whether piston position arrives the 1# position, if step ssb2 is then returned in no show;
Ssb4: when the cylinder arrival 1# position of contracting, anchor is up to last anchor pine on the pine;
Ssb5: stretch cylinder;
Ssb6: judge whether piston position arrives the 3# position,, return step ssb5 if do not arrive;
Ssb7: piston position arrives the 3# position, and it is tight until last anchor tightly to go up anchor;
Ssb8: stretch cylinder;
Ssb9: judge whether piston position arrives the 4# position, if step ssb8 is then returned in no show;
Ssb10: stretch cylinder and arrive the 4# position, Panasonic's anchor,
Ssb11: whether judgement casts anchor loose, if loose, then returns step ssb10;
Ssb12: the pine of casting anchor, the cylinder that contracts, keep Panasonic's anchor simultaneously,
Ssa13: the cylinder invocation of procedure that contracts pressure monitor subprogram,
Ssb14: judge simultaneously in the cylinder process that contracts whether piston position arrives the 2# position, if step ssb12 is then returned in no show;
Ssb15: piston position arrives the 2# position, returns step ssb1;
Wherein: the 1# position refers to jack master cylinder lower limit,
The 2# position refers to jack master cylinder lower limit load transfer position,
The 3# position refers to jack master cylinder upper limit load transfer position,
The 4# position refers to jack master cylinder upper limit.
In many guy rope simultaneously pretightenings of above-mentioned large-tonnage mast or the method loosened, the step of described pressure monitor process following (referring to Fig. 7):
Sss1: the pressure P n that obtains current jack;
Sss2: judge that whether Pn is more than or equal to the jack pressure value P that sets
IfIf greater than setting value, alarm system-down and on screen, show relevant information then, if less than setting value, system continues operation;
Sss3: return and call the place.
A kind of conversion as various embodiments of the present invention, the radical N of described cable wind rope can increase and decrease, and be equipped with the stretch-draw jack of the N platform band pressure sensor of equal number simultaneously, the translation jack of two band displacement pickups, N+2 platform hydraulic power unit, the span of General N is: N is the even number between 2～20.
In the various embodiments described above, the quantity of described hydraulic power unit IV is to drive a jack by a hydraulic power unit to calculate, a kind of conversion as various embodiments of the present invention, the quantity of described hydraulic power unit IV also can reduce 1/2 or 3/4, that is: can drive 2 or 4 hydraulic jacks simultaneously by a hydraulic power unit, at this moment, the quantity with the supporting hydraulic power unit IV of each stretch-draw jack 3 and translation jack III is 1/2 or 1/4 of jack sum.
Many guy rope simultaneously pretightenings of large-tonnage mast of the present invention or the method for loosening both be suitable for construction that the large-tonnage mast is moved, also be applicable to large-tonnage mast lifting construction, when the large-tonnage mast lifts, mast certain angle that need tilt, at this moment the stressed of every cable wind rope must be regulated by the size that mast force balance condition is calculated, and every cable wind rope regulates and need carry out simultaneously, at this moment just needs with this method to improve safety of construction.
Claims (7)
1. many guy rope simultaneously pretightenings of a large-tonnage mast or relaxation system, it is characterized in that: this system is by N root cable wind rope, the translation jack of two band displacement pickups, N+2 platform hydraulic power unit, 1 cover control system is formed, every cable wind rope is made up of M bar tensioned prestressing bar, wherein all be in series with by earth anchor, bracing frame, the stretch-draw jack that has pressure sensor, the single cable wind rope tensioning equipment that anchor fitting and adaptor union are formed, control system is to include cable wind rope to loosen the computer remote control system that module and cable wind rope tighten up module, and N+2 platform hydraulic power unit links to each other with the translation jack of stretch-draw jack that has pressure sensor and band displacement pickup respectively by high pressure fuel pipe; Each displacement pickup, pressure sensor link to each other with the control system input end by circuit, and each hydraulic power unit links to each other with control system by control cable; The span of above-mentioned M, N is: 1≤M≤100, N is the even number between 2～20.
2. many guy rope simultaneously pretightenings of large-tonnage mast according to claim 1 or relaxation system is characterized in that: the stretch-draw jack (3) as cable wind rope stretch-draw actuating unit in the system in the single cable wind rope tensioning equipment is made up of last clamper (31), master top (32), lower gripper (34), spike (33); Stretch-draw jack (3) is fixed on the bracing frame (2) by spike (33) and bolt (35), and an end of bracing frame (2) links to each other with earth anchor (1) by bearing pin (7); The other end of bracing frame (2) is unsettled, and in adaptor union (6), adaptor union (6) maybe needs to strain the position by bearing pin (8) with mast (II) upper end and links to each other anchor fitting (5) with bolt; The M bar tensioned prestressing bar (4) of forming cable wind rope passes anchor fitting (5), stretch-draw jack (3) by the upper and lower clamper (31) of anchor fitting (5), stretch-draw jack (3), (34) anchoring, and the span of above-mentioned M is: 1≤M≤100.
3. many guy rope simultaneously pretightenings of large-tonnage mast according to claim 1 and 2 or relaxation system is characterized in that: the prestressing tendon of described composition cable wind rope is steel strand or reinforcing bar, and wherein, it is a kind of that steel strand are best suited for.
4. many guy rope simultaneously pretightenings of a large-tonnage mast or the method loosened is characterized in that:
Many guy rope simultaneously pretightenings of large-tonnage mast or relaxation system that this method adopts translation jack, N+2 platform hydraulic power unit, the 1 cover control system of the cable wind rope by N root band cable wind rope tensioning equipment as claimed in claim 1 or 2, two band displacement pickups to form, utilize the computer network synchronous control technique, make many guy rope simultaneously pretightenings of mast or loosen; Concrete steps are: the mast moving direction signal that control system is passed back according to displacement pickup, pass through computer networking technology, judge in the N root cable wind rope that the 1st is tightened up or loosen to N/2 root cable wind rope, cooresponding with it N/2+1 root to the N root cable wind rope loosens or tightens up simultaneously, and each root cable wind rope tightened up and the signal that loosens sends to actuating unit---the stretch-draw jack of system, call simultaneously that cable wind rope tightens up program and cable wind rope loosens program, control is to many guy rope simultaneously pretightenings or loosen; Its predetermincd tension---be the size of the stretching force of stretch-draw jack, by the force value of the pressure sensor passback of computing machine basis on each stretch-draw jack on the N root cable wind rope and the calibration value of each jack, the predetermincd tension that calculates every cable wind rope in real time and born, and itself and cable wind rope are set predetermincd tension compare and calculate the predetermincd tension controlling quantity, and control by the flow of controlling each hydraulic power unit, under control system control, drive each electromagnetic valve action on the hydraulic power unit, the hydraulic power of its output drives the stretch-draw jack again and drives M bar tensioned prestressing bar and tighten up or loosen, thereby realizes tightening up or loosening of cable wind rope; The span of above-mentioned M, N is: 1≤M≤100, N is the even number between 2～20.
5. many guy rope simultaneously pretightenings of large-tonnage mast according to claim 4 or the method for loosening, it is characterized in that: the step that described cable wind rope tightens up is as follows:
Ssa1: it is tight up to casting anchor tightly to cast anchor;
Ssa2: cylinder contracts;
Ssa3: judge whether piston position arrives the 3# position, if no show then enters step ssa6;
Ssa4: after arriving the 3# position, cylinder contracts in the time of Song Shangmao;
Ssa5: anchor is up to last anchor pine on the pine;
Ssa6: judge whether piston position arrives the 1# position, if step ssa2 is then returned in no show;
Ssa7: after arriving the 1# position, tightly go up anchor;
Ssa8: whether anchor is tight in the judgement, if not tight, then returns step ssa7;
Ssa9: it is tight to go up anchor, stretches cylinder;
Ssa10: stretch and call the pressure monitor program in the cylinder process and monitor,
Ssa11: stretch and judge simultaneously in the cylinder process whether piston position arrives the 2# position, if do not arrive, then returns
Return step ssa9;
Ssa12: after arriving the 2# position, Panasonic's anchor is stretched cylinder simultaneously up to the pine of casting anchor;
Ssa13: stretch and call the pressure monitor program in the cylinder process and monitor,
Ssa14: stretch the cylinder process and judge that simultaneously whether piston position arrives the 4# position, if do not arrive, then returns
Step ssa12;
Ssa15: after arriving the 4# position, return step ssa1;
Above-mentioned: the 1# position refers to jack master cylinder lower limit,
The 2# position refers to jack master cylinder lower limit load transfer position,
The 3# position refers to jack master cylinder upper limit load transfer position,
The 4# position refers to jack master cylinder upper limit.
6. many guy rope simultaneously pretightenings of large-tonnage mast according to claim 4 or the method for loosening, it is characterized in that: the step that described cable wind rope loosens is as follows:
Ssb1: it is tight up to casting anchor tightly to cast anchor;
Ssb2: cylinder contracts;
Ssb3: judge whether piston position arrives the 1# position, if step ssb2 is then returned in no show;
Ssb4: when the cylinder arrival 1# position of contracting, anchor is up to last anchor pine on the pine;
Ssb5: stretch cylinder;
Ssb6: judge whether piston position arrives the 3# position,, return step ssb5 if do not arrive;
Ssb7: piston position arrives the 3# position, and it is tight until last anchor tightly to go up anchor;
Ssb8: stretch cylinder;
Ssb9: judge whether piston position arrives the 4# position, if step ssb8 is then returned in no show;
Ssb10: stretch cylinder and arrive the 4# position, Panasonic's anchor,
Ssb11: whether judgement casts anchor loose, if loose, then returns step ssb10;
Ssb12: the pine of casting anchor, the cylinder that contracts keeps Panasonic's anchor simultaneously,
Ssa13: the cylinder invocation of procedure that contracts pressure monitor subprogram,
Ssb14: judge simultaneously in the cylinder process that contracts whether piston position arrives the 2# position, if no show, then
Return step ssb12;
Ssb15: piston position arrives the 2# position, returns step ssb1;
Wherein: the 1# position refers to jack master cylinder lower limit,
The 2# position refers to jack master cylinder lower limit load transfer position,
The 3# position refers to jack master cylinder upper limit load transfer position,
The 4# position refers to jack master cylinder upper limit.
7. according to claim 5 or many guy rope simultaneously pretightenings of 6 described large-tonnage masts or the method loosened, it is characterized in that: the step of described pressure monitor process is as follows:
Sss1: the pressure P n that obtains current jack;
Sss2: judge whether Pn establishes more than or equal to the jack pressure value P that sets; If greater than setting value, alarm system-down and on screen, show relevant information then, if less than setting value, system continues operation;
Sss3: return and call the place.
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| CN2007100516458A CN101259940B (en) | 2007-03-07 | 2007-03-07 | Large tonnage backstay multi-cable wind-rope simultaneously pretightening or releasing system and method thereof |
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| CN2007100516458A CN101259940B (en) | 2007-03-07 | 2007-03-07 | Large tonnage backstay multi-cable wind-rope simultaneously pretightening or releasing system and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101831871A (en) * | 2010-03-16 | 2010-09-15 | 中交二航局第二工程有限公司 | Adjustable wind cable and installing method thereof |
| CN108792938A (en) * | 2018-06-26 | 2018-11-13 | 合肥市春华起重机械有限公司 | A kind of bridge crane ruggedized construction |
| CN111422738A (en) * | 2020-03-16 | 2020-07-17 | 中铁大桥局第七工程有限公司 | Cable rope anchoring device and using method thereof |
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| US6695158B2 (en) * | 2002-02-04 | 2004-02-24 | Manitowoc Crane Companies, Inc. | Crane with self-raising mast |
| CN2677352Y (en) * | 2003-11-21 | 2005-02-09 | 陈金瑞 | Improved mast crane |
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| CN201033718Y (en) * | 2007-03-07 | 2008-03-12 | 柳州欧维姆机械股份有限公司 | Large-tonnage mast multi-cable wind-rope simultaneously pretightening or releasing system |
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| CN101831871A (en) * | 2010-03-16 | 2010-09-15 | 中交二航局第二工程有限公司 | Adjustable wind cable and installing method thereof |
| CN108792938A (en) * | 2018-06-26 | 2018-11-13 | 合肥市春华起重机械有限公司 | A kind of bridge crane ruggedized construction |
| CN112978605A (en) * | 2019-12-04 | 2021-06-18 | 柳州泰姆预应力机械有限公司 | Intelligent lifting control method and system |
| CN112978605B (en) * | 2019-12-04 | 2024-01-12 | 柳州泰姆预应力机械有限公司 | Intelligent lifting control method and system |
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| CN112727135A (en) * | 2020-12-17 | 2021-04-30 | 上海建工集团股份有限公司 | Box-type house self-adaptive typhoon-preventing reinforcement system and reinforcement method |
| CN113526365A (en) * | 2021-07-27 | 2021-10-22 | 湖南省中南桥梁安装工程有限公司 | Tower top self-balancing system for hoisting cable and traction cable of cable crane |
| CN113526365B (en) * | 2021-07-27 | 2024-02-27 | 湖南省中南桥梁安装工程有限公司 | Cable crane lifting rope and traction rope tower top self-balancing system |
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