CN102530732A - Hydraulic hoisting, slipping and emplacing method and equipment for large scale press components - Google Patents
Hydraulic hoisting, slipping and emplacing method and equipment for large scale press components Download PDFInfo
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- CN102530732A CN102530732A CN2011104594679A CN201110459467A CN102530732A CN 102530732 A CN102530732 A CN 102530732A CN 2011104594679 A CN2011104594679 A CN 2011104594679A CN 201110459467 A CN201110459467 A CN 201110459467A CN 102530732 A CN102530732 A CN 102530732A
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- 230000003028 elevating Effects 0.000 claims description 64
- 229910000831 Steel Inorganic materials 0.000 claims description 42
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- 238000003825 pressing Methods 0.000 claims description 32
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- 238000009434 installation Methods 0.000 claims description 9
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- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 240000000800 Allium ursinum Species 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
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- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 238000010205 computational analysis Methods 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 235000019713 millet Nutrition 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 5
- 238000005242 forging Methods 0.000 description 2
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- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention discloses a hydraulic hoisting, slipping and emplacing method and equipment for large scale press components, which have the advantages of simple structure, safety, reliability, recoverability and repeated use. The hydraulic hoisting, slipping and emplacing equipment comprises two main beams which are parallel to each other and horizontally arranged. Three upright posts are fixedly connected to the lower part of each main beam, a fundamental base connected with the ground is arranged at the bottom of each upright post, two hoisting beams parallel to each other are arranged above the two main beams, the two ends of each of the two hoisting beams are mounted on the upper end surfaces of the main beams through end beams, two lifting oil cylinders are arranged above each hoisting beam, each lifting oil cylinder is mounted on the upper end surface of the hoisting beam through the lifting oil cylinder base at bottom, at least one stranded wire is arranged in each lifting oil cylinder, and a first hydraulic crawl device is mounted among the ends of the end beams and the main beams.
Description
Technical field
The present invention relates to a kind of hanging device and hanging method, particularly relate to a kind of lifting slippage Apparatus and method in place of large component.
Background technology
Large pressing machine is the strategic equipment that concerns national security, economic development, also is manufacturing basic equipment such as electric power, aviation, military affairs.China is as manufacturing powerhouse; No matter from international political relation and defense needs; Still from realizing the transformation level to power by equipment manufacture big country; Construction and introduction large pressing machine are all extremely urgent, and China will become the power of nuclear power, aerospace high-tech sector, just must equip the large pressing machine of oneself.
On this basis; Wuxi Turbine Blade Co., Ltd is from the German SMS introduction SPKA22400 of company clutch type screw press; Maximum hitting power reaches 3.5 ten thousand tons, is the maximum forging equipment of present hitting power in the world, is national key strategy equipment; It is installed to go into operation and can not only satisfy the needs of the super-huge blade of nuclear power, has also established solid foundation for the research and development production of Chinese large-sized aircraft High Performance forging.
For the installation of SPKA22400 clutch type screw press, because its complex structure, the single component Heavy Weight, setting accuracy is high, has therefore that difficulty of construction is big, requirements for quality is high and problem such as construction cost height.Improper like concept selection, construction quality, progress, cost etc. all are difficult for guaranteeing.
The SPKA22400 clutch type screw press; Form about 3000 tons of gross weight of equipment amount by backing-out punch, base plate, bench board, slide block, mother nut, upright arm, pull bar, driving screw, guide rail plate, bearing seat, lower pressure plate, friction lining, power-transfer clutch, flywheel, upward pressure plate, HM Hydraulic Motor etc. from bottom to up.Wherein entablatrance weighs 340 tons, and oad is 7.44m*4m*3.25m, and hoisting height is 12.2m, and base weighs 304 tons, and oad is 7.44m*4m*3m.Driving in the factory building is 160 tons; The ability that does not possess hoisted in position entablatrance and base; For the installation of this type of large pressing machine, the hoisted in position of base and entablatrance is crucial, generally adopts following three kinds of methods to lift; The one, adopt super-huge crane to install, the wheel crane of estimation needs more than 1500 tons could be with the entablatrance hoisted in position.The 2nd, lift with single masts of two 400 tons, when the entablatrance lifting altitude surpasses hoisting height, swing two single masts and make the entablatrance pendulum to upright arm top, fall in place again.The 3rd, make the gauntry crane that a crane capacity reaches 400 tons and carry out hoisted in position.
More than three kinds of methods have following problem: 1) the super-huge crane more than 1500 tons is at present domestic does not have, even have, it also is very high advancing appearance money and operating costs; 2) adopt second method, need to make 200 tons of masts of two long 20m, need 20 tons of large quantities of lifting tools such as winch in addition, the greatest problem of this method is that safety performance is bad, and winch, guiding slider and cable rope are difficult for being provided with and anchoring; 3) the third method need be made the gauntry crane of 400 tons of crane capacities, span 21m, and cost of manufacture is high, reclaims difficulty, is driven a vehicle simultaneously and makes the restriction of licence.
Summary of the invention
The technical matters that the present invention will solve provides a kind of reusable large pressing machine parts hydraulic pressure lift slippage simple in structure, safe and reliable, recyclable method and apparatus in place.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place; Comprise two girders that are horizontally disposed with and are parallel to each other; The below of every said girder is fixedly connected with three root posts; The bottom of every said column is provided with the sole plate that is connected with ground, and the top of two said girders is provided with two lifting beams that are parallel to each other, and the two ends of two said lifting beams are installed in the upper surface of girder through the termination beam; The top of every lifting beam is provided with two elevating rams; Each said elevating ram is installed in the upper surface that lifts beam through the elevating ram base of bottom, is provided with at least one steel strand in each elevating ram, between the two ends of said termination beam and the girder first hydraulic pressure creep machine is installed;
Said elevating ram comprises cylinder barrel, piston, last anchor and casts anchor; The lower end of said cylinder barrel is fixedly connected on the elevating ram base; Said piston upper surface is fixedly connected with the hollow piston bar; The upper end of said piston rod passes from the cylinder barrel upper end, and the opening that said upward anchor is arranged on the piston rod upper end goes out, and said casting anchor is arranged on the through hole of elevating ram base; Said steel strand pass anchor, piston rod, piston from top to bottom successively, cast anchor and the elevating ram base, and the said anchor of going up is controlled through hydraulic ram respectively with casting anchor.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place; The external form of its middle girder is a box beam; Inside comprises angle iron frame and internal partition, and there is square steel the upper surface of girder captive joint Ei along its length, is equipped with stainless steel sheet on the girder upper surface of said square steel both sides; The external form of said termination beam also is a box beam, and the lower surface of termination beam is fixedly connected with two backing plates, in the groove that said square steel is constituted between two backing plates, is fixedly connected with on the lower surface of said backing plate and the contacted wear plate of stainless steel sheet.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place, wherein every said lifting beam comprises two box lifting beams that laterally arrange, said steel strand pass from the space between two box lifting beams.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place; Wherein said first hydraulic pressure creep machine comprises fixing device and thrust hydraulic actuating cylinder; Said fixing device is arranged on the upper surface of girder; The fixing device in-to-in clamps voussoir and matches with said square steel, and the cylinder body and the fixing device of said thrust hydraulic actuating cylinder are hinged, and the piston rod of thrust hydraulic actuating cylinder and termination beam are hinged.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place, wherein every said termination beam comprises two decomposable termination Zi Liang, the two ends of every said lifting beam correspondence respectively are installed in sub-beam upper end, termination.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place wherein all is equipped with first hydraulic pressure creep machine between every sub-beam in said termination and the girder.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place wherein is equipped with second hydraulic pressure creep machine between each said elevating ram base and the lifting beam, and said second hydraulic pressure creep machine is identical with the first hydraulic pressure creep machine structure.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place wherein is connected with one respectively and connects girder between the two ends of two said girders.
Large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place; Wherein the below of each said elevating ram is provided with laser rangefinder; On each said first hydraulic pressure creep machine and second hydraulic pressure creep machine stroke sensor is installed, every said girder inboard is provided with theodolite near beam position, termination.
Large pressing machine parts hydraulic pressure lift of the present invention slippage is carried out according to following steps with regard to method for position:
The first step: at first carry out ground processing, unwrapping wire;
Second step: make the slippage equipment that promotes according to the exploded drawings of computational data and member; Make content and comprise sole plate, column, termination beam, lifting beam, elevating ram and elevating ram base; After each structure manufacture finishes, assemble in advance, guarantee assembly quality in the workshop; And suitably debug; Guarantee to lift the slippage on the square steel track of two girders that beam can be unimpeded, the connection mode between column and sole plate, column top and girder and the girder is a bolted connection in addition, guarantees that each bolt hole can both assemble on request;
The 3rd step: each member of equipment is transported to the scene; Carry out assembly unit with the overhead traveling crane in the workshop; All members assemble on ground by designing requirement, and are then that the column that assembles, girder, the integral hoisting of lifting beam sub-module is in place, before frock does not become integral body; To draw four wind ropes in the column setting process at its top, guarantee the safe reliability when it is erect;
The 4th step: the steel strand of 4 elevating rams are put on, elevating ram is mounted on the elevating ram base on lifting beam top with overhead traveling crane;
The 5th step: erection work platform lower part equipment; With first hydraulic pressure creep machine, second hydraulic pressure creep machine and hydraulic power unit hoisted in position; Elevating ram and hydraulic pressure creep machine are connected in place with the hydraulic oil pipe of pumping plant, carry out the test of elevating ram and hydraulic pressure creep machine ontology data afterwards;
The 6th step: sensing and monitoring system is set; Below each elevating ram, laser rangefinder is set; At any time the amount of deflection changing value of the hoisting depth of measuring equipment and girder and lifting beam, the stroke sensor that has according to hydraulic pressure creep machine self is simultaneously controlled the synchronism of slippage at any time, and near beam position, termination theodolite is set along the girder inboard on ground; The horizontal offset of tracking measurement steel strand and column; Send the information that monitors to main control computer, passing ratio valve dominant discharge realizes that lifting synchronously, slippage and steel strand keep the requirement of vertical;
The 7th step: each main stressed place is provided with strain-gauge on elevator system, and wiring is connected with main control computer, and utilizes large-scale finite-element structure analysis program ANSYS software that the ess-strain monitoring information in lifting and the slipping is carried out computational analysis;
The 8th step: try to hoist, remove topside with ground-surface all be connected, check topside; And remove all load outside calculating; Check the service condition of whole elevator system, the overhead 100mm stagnation 2 to 3 hours that hoists is carried out end-to-end test to frock and lifting means afterwards;
The 9th step: formally lift by crane, pay close attention to according to the content in the 6th, seven steps when formally lifting;
The tenth step: carry out preparatory slippage, whether the joint of all valves or hard tube has loosening on the inspection hydraulic power unit; Whether the pressure spring of inspection by pass valve is in complete relaxation state; Inspection pumping plant control housing operating switch is in halted state; Loading is pressurised into 40%, 60%, 80% of required pressure at first according to hydraulic pressure creep machine, under all stable situation, can be added to 100%; After lifting fine strain of millet has begun that just displacement is arranged; Promptly temporarily stopping, whether normal, the situation of change of the fixing device of hydraulic pressure creep machine, sliding rail and machine frame if carrying out each equipment operation situation of end-to-end test then;
The 11 step: under all normal circumstancess, can formally begin slippage, undertaken by the tenth one step process during slippage, at first be hierarchical loading, in system, shows displacement and be advisable, and stops to load, and carries out formal slippage;
The 12 step: slide onto the installation site; Equipment is fallen after rise, because of the assembly precision of equipment own higher, so after equipment drops down onto the steady ring place; Modulated pressure crawl device and elevating ram carry out little all around to equipment; Adjust its levelness up and down, after everything is ready, elevating ram carried out falling equipment by 1～2mm/ at every turn synchronously;
The 13 step: equipment such as erection work platform steady ring, upright arm, slide block, mother nut, guide rail plate, driving screw, compensating cylinder, carry out the lifting of entablatrance afterwards, the lifting slippage of entablatrance is with regard to the same bench board of method for position; Carry out the installation of top equipment afterwards;
The 14 step: equipment debugging.
Large pressing machine parts hydraulic pressure lift of the present invention slippage method and apparatus difference from prior art in place is that large pressing machine parts hydraulic pressure lift slippage of the present invention method and apparatus in place need not use large-scale crane; Construction safety; Accurately locate, installation quality is high, and work capacity is little; Entire equipment can reuse, and reduces engineering cost; In lifting and decline process, realize that through monitored control system each suspension centre promotes and decline is synchronous, the accurate location of realizing slippage simultaneously, the particularly synchronous decline of institute's installing component and slippage accurately are positioned in the parts process in place and seem particularly important.
Below in conjunction with accompanying drawing large pressing machine parts hydraulic pressure lift slippage of the present invention method and apparatus in place is described further.
Description of drawings
The perspective view of Fig. 1 large pressing machine parts of the present invention hydraulic pressure lift slippage equipment in place;
Fig. 2 is the front view of the mounting means of termination beam and girder;
Fig. 3 is termination beam and the lateral plan that lifts beam;
Fig. 4 is the lateral plan of first hydraulic pressure creep machine;
Fig. 5 looks cutaway view for the master of elevating ram.
The specific embodiment
As shown in Figure 1, large pressing machine parts hydraulic pressure lift slippage of the present invention equipment in place comprises that being connected with one between the two ends of 1, two girder 1 of two girders that are horizontally disposed with and are parallel to each other respectively connects girder 24.The below of every girder 1 is fixedly connected with three root posts 2; The sole plate 3 that is connected with ground is arranged through bolted connection at the bottom of every root post 2; The top of two girders 1 is provided with two lifting beams 4 that are parallel to each other; The two ends of two lifting beams 4 are installed in the upper surface of girder 1 through termination beam 5, and the top of every lifting beam 4 is provided with two elevating rams 6, and each elevating ram 6 is installed in the upper surface of lifting beam 4 through the elevating ram base 7 of bottom; Be provided with some steel strand 8 in each elevating ram 6; The lower end of steel strand 8 is provided with reaction frame, and first hydraulic pressure creep machine 9 is installed between the two ends of termination beam 5 and the girder 1, between each elevating ram base 7 and the lifting beam 4 second hydraulic pressure creep machine 23 is installed.
As shown in Figure 2, the external form of girder 1 is a box beam, and inside comprises angle iron frame and internal partition, and there is square steel 15 upper surface of girder 1 captive joint Ei along its length, is equipped with stainless steel sheet 16 on girder 1 upper surface of square steel 15 both sides; The external form of termination beam 5 also is a box beam; The lower surface of termination beam 5 is fixedly connected with two backing plates 17; In the groove that square steel 15 is constituted between two backing plates 17; Be fixedly connected with on the lower surface of backing plate 17 and stainless steel sheet 16 contacted wear plates 18, wear plate 18 is selected the MGE plate for use, and can on stainless steel sheet 16, reduce friction force by coating butter.
As shown in Figure 3, every lifting beam 4 comprises two box lifting beams 19 that laterally arrange, and steel strand 8 pass from the space between two box lifting beams 19.Every butt head beam 5 comprises two sub-beams 22 in decomposable termination, and the two ends of every lifting beam 4 correspondence respectively are installed in sub-beam 22 upper ends, termination.
As shown in Figure 4; First hydraulic pressure creep machine 9 comprises fixing device 20 and thrust hydraulic actuating cylinder 21; Fixing device 20 is arranged on the upper surface of girder 1, and fixing device 20 in-to-ins clamp voussoir and match with square steel 15, and the cylinder body of thrust hydraulic actuating cylinder 21 and fixing device 20 are hinged; The piston rod of thrust hydraulic actuating cylinder 21 and termination beam 5 are hinged, and second hydraulic pressure creep machine 23 is identical with first hydraulic pressure creep machine, 9 structures.When needs promotion termination beam 5 moves forward; Control fixing device 20 in-to-ins clamp square steel 15 clamping engagement of voussoir and girder 1 upper surface, control thrust hydraulic actuating cylinder 21 and stretch cylinder, termination beam 5 under the effect of thrust hydraulic actuating cylinder 21 slowly to front slide; When thrust hydraulic actuating cylinder 21 is stretched cylinder arrival up stroke point; Control fixing device 20 loosens the clamping to square steel 15, and control thrust hydraulic actuating cylinder 21 cylinder that contracts moves forward fixing device 20; When thrust hydraulic actuating cylinder 21 contracts cylinder when arriving down stroke point, repeat above-mentioned action can make termination beam 5 constantly along girder 1 to front slide.
As shown in Figure 5; Elevating ram 6 comprises cylinder barrel 10, piston 11, goes up anchor 12 and casts anchor 13, and the lower end of cylinder barrel 10 is fixedly connected on the elevating ram base 7, and piston 11 upper surfaces are fixedly connected with hollow piston bar 14; Have several hollow through holes in the piston rod 14; The upper end of piston rod 14 passes from cylinder barrel 10 upper ends, somely goes up some openings that anchors 12 are arranged on piston rod 14 upper ends and goes out, and some casting anchor 13 is arranged on some through holes of elevating ram base 7; Some steel strand 8 from top to bottom successively correspondence pass anchor 12, piston rod 14, piston 11, cast anchor 13 and elevating ram base 7, last anchor 12 with cast anchor 13 respectively through hydraulic ram control.
When needs elevating ram 6 will promote when action, anchor 12 clamping steel strand 8 in the control cast anchor and 13 unclamp steel strand 8; The rodless cavity fuel feeding of modulated pressure pumping plant in cylinder barrel 10, piston 11 and piston rod 14 upward movement under the oil pressure application force, thus make anchor 12 drive steel strand 8 upward movements; When piston 11 moves to up stroke point; Control the 13 clamping steel strand 8 that cast anchor, last anchor 12 unclamps steel strand 8, the rod chamber fuel feeding of modulated pressure pumping plant in cylinder barrel 10; Piston 11 moves downward to the down stroke point with piston rod 14, repeats above-mentioned action steel strand 8 are constantly upwards promoted.The whereabouts working process and the lifting process of elevating ram 6 are opposite, do not do tired stating at this.
Promote action through controlling two elevating rams 6, control two other elevating ram 6 and carry out drop action and can realize part of pressure machine is overturn.
Because termination beam 5 can be the sub-beam 22 in the termination of two detachables, on girder 1, slide respectively for the ease of two butt chieftain beams 22, can between every butt chieftain beam 22 and girder 1, first hydraulic pressure creep machine 9 be installed all.
Large pressing machine parts hydraulic pressure lift of the present invention slippage is carried out according to following steps with regard to method for position:
The first step: at first carry out ground processing, unwrapping wire;
Second step: make the slippage equipment that promotes according to the exploded drawings of computational data and member; Make content and comprise sole plate, column, termination beam, lifting beam, elevating ram and elevating ram base; After each structure manufacture finishes, assemble in advance, guarantee assembly quality in the workshop; And suitably debug; Guarantee to lift the slippage on the square steel track of two girders that beam can be unimpeded, the connection mode between column and sole plate, column top and girder and the girder is a bolted connection in addition, guarantees that each bolt hole can both assemble on request;
The 3rd step: each member of equipment is transported to the scene; Carry out assembly unit with the overhead traveling crane in the workshop; All members assemble on ground by designing requirement, and are then that the column that assembles, girder, the integral hoisting of lifting beam sub-module is in place, before frock does not become integral body; To draw four wind ropes in the column setting process at its top, guarantee the safe reliability when it is erect;
The 4th step: the steel strand of 4 elevating rams are put on, elevating ram is mounted on the elevating ram base on lifting beam top with overhead traveling crane;
The 5th step: erection work platform lower part equipment; With first hydraulic pressure creep machine, second hydraulic pressure creep machine and hydraulic power unit hoisted in position; Elevating ram and hydraulic pressure creep machine are connected in place with the hydraulic oil pipe of pumping plant, carry out the test of elevating ram and hydraulic pressure creep machine ontology data afterwards;
The 6th step: sensing and monitoring system is set; Below each elevating ram, laser rangefinder is set; At any time the amount of deflection changing value of the hoisting depth of measuring equipment and girder and lifting beam, the stroke sensor that has according to hydraulic pressure creep machine self is simultaneously controlled the synchronism of slippage at any time, and near beam position, termination theodolite is set along the girder inboard on ground; The horizontal offset of tracking measurement steel strand and column; Send the information that monitors to main control computer, passing ratio valve dominant discharge realizes that lifting synchronously, slippage and steel strand keep the requirement of vertical;
The 7th step: each main stressed place is provided with strain-gauge on elevator system, and wiring is connected with main control computer, and utilizes large-scale finite-element structure analysis program ANSYS software that the ess-strain monitoring information in lifting and the slipping is carried out computational analysis;
The 8th step: try to hoist, remove topside with ground-surface all be connected, check topside; And remove all load outside calculating; Check the service condition of whole elevator system, the overhead 100mm stagnation 2 to 3 hours that hoists is carried out end-to-end test to frock and lifting means afterwards;
The 9th step: formally lift by crane, pay close attention to according to the content in the 6th, seven steps when formally lifting;
The tenth step: carry out preparatory slippage, whether the joint of all valves or hard tube has loosening on the inspection hydraulic power unit; Whether the pressure spring of inspection by pass valve is in complete relaxation state; Inspection pumping plant control housing operating switch is in halted state; Loading is pressurised into 40%, 60%, 80% of required pressure at first according to hydraulic pressure creep machine, under all stable situation, can be added to 100%; After lifting fine strain of millet has begun that just displacement is arranged; Promptly temporarily stopping, whether normal, the situation of change of the fixing device of hydraulic pressure creep machine, sliding rail and machine frame if carrying out each equipment operation situation of end-to-end test then;
The 11 step: under all normal circumstancess, can formally begin slippage, undertaken by the tenth one step process during slippage, at first be hierarchical loading, in system, shows displacement and be advisable, and stops to load, and carries out formal slippage;
The 12 step: slide onto the installation site; Equipment is fallen after rise, because of the assembly precision of equipment own higher, so after equipment drops down onto the steady ring place; Modulated pressure crawl device and elevating ram carry out little all around to equipment; Adjust its levelness up and down, after everything is ready, elevating ram carried out falling equipment by 1～2mm/ at every turn synchronously;
The 13 step: equipment such as erection work platform steady ring, upright arm, slide block, mother nut, guide rail plate, driving screw, compensating cylinder, carry out the lifting of entablatrance afterwards, the lifting slippage of entablatrance is with regard to the same bench board of method for position; Carry out the installation of top equipment afterwards;
The 14 step: equipment debugging.
Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. large pressing machine parts hydraulic pressure lift slippage equipment in place; It is characterized in that: comprise two girders that are horizontally disposed with and are parallel to each other (1); The below of every said girder (1) is fixedly connected with three root posts (2); The bottom of every said column (2) is provided with the sole plate (3) that is connected with ground; The top of two said girders (1) is provided with two lifting beams (4) that are parallel to each other; The two ends of two said lifting beams (4) are installed in the upper surface of girder (1) through termination beam (5), and the top of every lifting beam (4) is provided with two elevating rams (6), and each said elevating ram (6) is installed in the upper surface that lifts beam (4) through the elevating ram base (7) of bottom; Be provided with at least one steel strand (8) in each elevating ram (6), between the two ends of said termination beam (5) and the girder (1) first hydraulic pressure creep machine (9) be installed;
Said elevating ram (6) comprises cylinder barrel (10), piston (11), goes up anchor (12) and cast anchor (13); The lower end of said cylinder barrel (10) is fixedly connected on the elevating ram base (7); Said piston (11) upper surface is fixedly connected with hollow piston bar (14); The upper end of said piston rod (14) passes from cylinder barrel (10) upper end; The opening that said upward anchor (12) is arranged on piston rod (14) upper end goes out; Said casting anchor (13) is arranged on the through hole of elevating ram base (7), and said steel strand (8) pass anchor (12), piston rod (14), piston (11) from top to bottom successively, cast anchor (13) and elevating ram base (7), and said upward anchor (12) and cast anchor (13) are respectively through hydraulic ram control.
2. large pressing machine parts hydraulic pressure lift slippage according to claim 1 equipment in place; It is characterized in that: the external form of said girder (1) is a box beam; Inside comprises angle iron frame and internal partition; There is square steel (15) upper surface of girder (1) captive joint Ei along its length, is equipped with stainless steel sheet (16) on girder (1) upper surface of said square steel (15) both sides; The external form of said termination beam (5) also is a box beam; The lower surface of termination beam (5) is fixedly connected with two backing plates (17); Said square steel (15) is positioned at the groove that is constituted between two backing plates (17), is fixedly connected with on the lower surface of said backing plate (17) and the contacted wear plate of stainless steel sheet (16) (18).
3. large pressing machine parts hydraulic pressure lift slippage according to claim 2 equipment in place; It is characterized in that: every said lifting beam (4) comprises two box lifting beams (19) that laterally arrange, and said steel strand (8) pass from the space between two box lifting beams (19).
4. large pressing machine parts hydraulic pressure lift slippage according to claim 3 equipment in place; It is characterized in that: said first hydraulic pressure creep machine (9) comprises fixing device (20) and thrust hydraulic actuating cylinder (21); Said fixing device (20) is arranged on the upper surface of girder (1); Fixing device (20) in-to-in clamps voussoir and matches with said square steel (15), and the cylinder body of said thrust hydraulic actuating cylinder (21) and fixing device (20) are hinged, and the piston rod of thrust hydraulic actuating cylinder (21) and termination beam (5) are hinged.
5. large pressing machine parts hydraulic pressure lift slippage according to claim 4 equipment in place; It is characterized in that: every said termination beam (5) comprises two decomposable termination Zi Liang (22), and the two ends of every said lifting beam (4) correspondence respectively are installed in termination Zi Liang (22) upper end.
6. large pressing machine parts hydraulic pressure lift slippage according to claim 5 equipment in place is characterized in that: between every said termination Zi Liang (22) and the girder (1) first hydraulic pressure creep machine (9) is installed all.
7. large pressing machine parts hydraulic pressure lift slippage according to claim 6 equipment in place; It is characterized in that: between each said elevating ram base (7) and the lifting beam (4) second hydraulic pressure creep machine (23) is installed, said second hydraulic pressure creep machine (23) is identical with first hydraulic pressure creep machine (9) structure.
8. large pressing machine parts hydraulic pressure lift slippage according to claim 7 equipment in place is characterized in that: be connected with one between the two ends of two said girders (1) respectively and connect girder (24).
9. large pressing machine parts hydraulic pressure lift slippage according to claim 8 equipment in place; It is characterized in that: the below of each said elevating ram (6) is provided with laser rangefinder; On each said first hydraulic pressure creep machine (9) and second hydraulic pressure creep machine (23) stroke sensor is installed, every said girder (1) is inboard to be provided with theodolite near termination beam (5) position.
10. employing such as the said large pressing machine parts of claim 8 hydraulic pressure lift slippage equipment in place promote slippage method in place, carry out according to following steps:
The first step: at first carry out ground processing, unwrapping wire;
Second step: make the slippage equipment that promotes according to the exploded drawings of computational data and member; Make content and comprise sole plate, column, termination beam, lifting beam, elevating ram and elevating ram base; After each structure manufacture finishes, assemble in advance, guarantee assembly quality in the workshop; And suitably debug; Guarantee to lift the slippage on the square steel track of two girders that beam can be unimpeded, the connection mode between column and sole plate, column top and girder and the girder is a bolted connection in addition, guarantees that each bolt hole can both assemble on request;
The 3rd step: each member of equipment is transported to the scene; Carry out assembly unit with the overhead traveling crane in the workshop; All members assemble on ground by designing requirement, and are then that the column that assembles, girder, the integral hoisting of lifting beam sub-module is in place, before frock does not become integral body; To draw four wind ropes in the column setting process at its top, guarantee the safe reliability when it is erect;
The 4th step: the steel strand of 4 elevating rams are put on, elevating ram is mounted on the elevating ram base on lifting beam top with overhead traveling crane;
The 5th step: erection work platform lower part equipment; With first hydraulic pressure creep machine, second hydraulic pressure creep machine and hydraulic power unit hoisted in position; Elevating ram and hydraulic pressure creep machine are connected in place with the hydraulic oil pipe of pumping plant, carry out the test of elevating ram and hydraulic pressure creep machine ontology data afterwards;
The 6th step: sensing and monitoring system is set; Below each elevating ram, laser rangefinder is set; At any time the amount of deflection changing value of the hoisting depth of measuring equipment and girder and lifting beam, the stroke sensor that has according to hydraulic pressure creep machine self is simultaneously controlled the synchronism of slippage at any time, and near beam position, termination theodolite is set along the girder inboard on ground; The horizontal offset of tracking measurement steel strand and column; Send the information that monitors to main control computer, passing ratio valve dominant discharge realizes that lifting synchronously, slippage and steel strand keep the requirement of vertical;
The 7th step: each main stressed place is provided with strain-gauge on elevator system, and wiring is connected with main control computer, and utilizes large-scale finite-element structure analysis program ANSYS software that the ess-strain monitoring information in lifting and the slipping is carried out computational analysis;
The 8th step: try to hoist, remove topside with ground-surface all be connected, check topside; And remove all load outside calculating; Check the service condition of whole elevator system, the overhead 100mm stagnation 2 to 3 hours that hoists is carried out end-to-end test to frock and lifting means afterwards;
The 9th step: formally lift by crane, pay close attention to according to the content in the 6th, seven steps when formally lifting;
The tenth step: carry out preparatory slippage, whether the joint of all valves or hard tube has loosening on the inspection hydraulic power unit; Whether the pressure spring of inspection by pass valve is in complete relaxation state; Inspection pumping plant control housing operating switch is in halted state; Loading is pressurised into 40%, 60%, 80% of required pressure at first according to hydraulic pressure creep machine, under all stable situation, can be added to 100%; After lifting fine strain of millet has begun that just displacement is arranged; Promptly temporarily stopping, whether normal, the situation of change of the fixing device of hydraulic pressure creep machine, sliding rail and machine frame if carrying out each equipment operation situation of end-to-end test then;
The 11 step: under all normal circumstancess, can formally begin slippage, undertaken by the tenth one step process during slippage, at first be hierarchical loading, in system, shows displacement and be advisable, and stops to load, and carries out formal slippage;
The 12 step: slide onto the installation site; Equipment is fallen after rise, because of the assembly precision of equipment own higher, so after equipment drops down onto the steady ring place; Modulated pressure crawl device and elevating ram carry out little all around to equipment; Adjust its levelness up and down, after everything is ready, elevating ram carried out falling equipment by 1～2mm/ at every turn synchronously;
The 13 step: equipment such as erection work platform steady ring, upright arm, slide block, mother nut, guide rail plate, driving screw, compensating cylinder, carry out the lifting of entablatrance afterwards, the lifting slippage of entablatrance is with regard to the same bench board of method for position; Carry out the installation of top equipment afterwards;
The 14 step: equipment debugging.
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| CN109100216B (en) * | 2018-09-17 | 2021-05-18 | 江西洪都航空工业集团有限责任公司 | Guided missile slider hanging and loading tool structure |
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