CN102425435B - Ultra-large whole-circle needle beam type hydraulic steel mould trolley and demoulding method thereof - Google Patents
Ultra-large whole-circle needle beam type hydraulic steel mould trolley and demoulding method thereof Download PDFInfo
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- CN102425435B CN102425435B CN 201110453620 CN201110453620A CN102425435B CN 102425435 B CN102425435 B CN 102425435B CN 201110453620 CN201110453620 CN 201110453620 CN 201110453620 A CN201110453620 A CN 201110453620A CN 102425435 B CN102425435 B CN 102425435B
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Abstract
The invention discloses an ultra-large whole-circle needle beam type hydraulic steel mould trolley for construction of an ultra-large whole-circle section tunnel with the diameter above 12m and a demoulding method of the ultra-large whole-circle needle beam type hydraulic steel mould trolley. A mould assembly of the trolley comprises a plurality of template groups which are longitudinally spliced; and in each template group, a top mould, a right side mould, a left side mould and a bottom mould form a whole-circle section, wherein two sides of the top mould are detachably connected with the left side mould and the right side mould respectively, and the top mould is connected with a beam frame assembly through a horizontal adjusting mechanism and a vertical adjusting mechanism. The demoulding method comprises the following steps of: removing connections between the top moulds and the left side moulds and between the top moulds and the right side moulds first, then withdrawing the left side moulds and the right side moulds simultaneously till demoulding, withdrawing the vertical adjusting mechanisms connected with the top moulds, demoulding the top moulds, and finally lifting the beam frame assembly and demoulding the bottom moulds. The ultra-large whole-circle needle beam type hydraulic steel mould trolley and the demoulding method thereof disclosed by the invention realize symmetrical demoulding and mould erection, can ensure stability of the ultra-large trolley, also ensures that strength and rigidity of the template accord with requirements, is convenient and practical toadjust and also provides a winding and centering mechanism suitable for the trolley.
Description
Technical field
The present invention relates to a kind of hydraulic pressure steel form carrier for the tunnel build, especially a kind of template system and release method thereof of super-huge wholecircle needle beam formula hydraulic pressure steel form carrier.
Background technology
According to industry tradition construction technology, wholecircle needle beam formula hydraulic pressure steel form carrier is used for the whole lining cutting of horizontal segment (or the straight tiltedly section) tunnel of medium and small wholecircle shape section more at present.The wholecircle needle beam formula hydraulic pressure steel form carrier that the lining cutting of wholecircle section is adopted, from 2.22 meters of minimum diameter φ to 11.5 meters of maximum gauge φ.According to present interrelated data, the maximum gauge of the wholecircle needle beam formula hydraulic pressure steel form carrier that successfully comes into operation is 11.5 meters of φ, is that Jinda Tunnel-Machinery Co., Ltd., Guanghan is six innings of Pu Shihe pumped storage power plants of water power development and Design.
So-called wholecircle needle beam formula hydraulic pressure steel form carrier, just the outline of finger print plate assembly be circular, namely backform, side form, bed die all the same center of circle and respectively the central angle sum of correspondence be 360 °.Whole chassis mainly is made up of template assembly, needle beam assembly, beam frame assembly, lower tray assembly, walking mechanism, centering body, hoisting mechanism, anti-floating system, hydraulic system, electrical system etc.
Tradition wholecircle needle beam formula hydraulic pressure steel form carrier template assembly generally comprises the longitudinal spliced template of many groups, and every group of template formed the cross section by backform, right side mould, left side mould and bed die four parts.The bed die both sides connect the left and right side template with hinge ear bearing pin respectively.One side of backform is connected with hinge ear bearing pin with the right side template, and another side connects with bolt and bearing pin with the left side template.Bed die vertically is connected into integral body by lower tray and beam frame assembly, and backform, right side mould, left side mould vertically are connected into integral body by the template articulated beam respectively.
When regulating the template system demoulding, shrink the backform oil cylinder earlier, make backform break away from the concrete face.Behind the gap of backform and left side mould formation 400-500mm, shrink the right side mould oil cylinder, make the right side mould break away from the concrete face.Shrink the left side mould oil cylinder again, make the left side mould break away from the concrete face.Vertical oil cylinder before and after the last lifting on the bearing makes bed die break away from the concrete face.After chassis arrived next station, anti-sequential adjustment template system and tunnel lining outline line coincided, and then finish the formwork erection of chassis.
For traditional wholecircle needle beam formula hydraulic pressure steel form carrier, when regulating the demoulding of trolley formwork system, backform easily and the left side mould oil cylinder interfere, cause chassis can't the demoulding or the demoulding after the trolley running space too small, and backform can't carry out left and right adjusting separately.
Tradition wholecircle needle beam formula hydraulic pressure steel form carrier hoisting mechanism is general main to be made up of a double drum winch, twin or two single drum winches, traveling wheel frame, guide pulley rack, assembly pulley, guide wheel group five parts.Hoist engine is fixed in the needle beam assembly.The traveling wheel frame is fixed on walking mechanism two ends, needle beam assembly top.Guide pulley rack is fixed on needle beam assembly both upper ends thereof, and guide wheel group is installed on the guide pulley rack, and assembly pulley is installed on guide pulley rack and the traveling wheel frame.Two wire rope are drawn from the lifting drum top respectively, upwards by the leading block guiding, pass traveling wheel, and last wraparound is fixed on the guide pulley rack.Its operating principle is: drive two reels by the cycloidal-pin wheel reducer and do rotation synchronously, needle beam and punching block fulcrum each other advance chassis do relative motion.Before the demoulding, shrink the base oil cylinder, the suspention base, track drops on the bed die road wheel below the needle beam, start hoist engine traction needle beam and move forward, put down base after putting in place, oil cylinder withstands on after needle beam carries out demoulding, the demoulding then, start hoist engine it is moved in the other direction, punching block namely is pulled and moves forward.
For the small-sized wholecircle needle beam formula hydraulic pressure steel form carrier of construction cross section diameter below 4m, its centering body and protective device thereof are general main to be made up of preceding base, rear base, translation mechanism, oil cylinder locking jack four parts.Preceding base is placed on the excavation face of the unlined bottom of chassis front end tunnel.Rear base is placed on chassis rear end tunnel on the bottom concrete face of lining cutting.One cover translation mechanism is respectively arranged on the base of front and back, translation mechanism comprises translation beam fixedly connected on the base, the translation beam two ends are connected with translation dolly on the base by cross cylinder, the translation dolly relies on translation dolly hook to be connected with base, the translation dolly is connected with needle beam by vertical oil cylinder, translation on the horizontal direction realizes the spacing of horizontal direction with lining cutting center and the tunnel center of stretching to adjust template of cross cylinder with the stroke of cross cylinder; Translation on the vertical direction after putting in place, realizes unloading pressure protection by two oil cylinders locking jack that respectively are installed in both sides, base front and back by vertical location and the demoulding of stretching to adjust template of vertical oil cylinder.
Oil cylinder locking jack as vertical oil cylinder decompression protection device the time also as anti-overturning devices; it is very heavy that separate unit needle beam formula hydraulic pressure steel form carrier one has eight oil cylinder lockings; it is installed in both sides, base front and back; one end and base are hinged; the other end and needle beam are hinged; be down " eight " font and arrange, guarantee that vertical oil cylinder can not prevent that simultaneously centering body from toppling because of longitudinal stress because the stressed excessive auto-lock function that causes lost efficacy.The major defect of this structure is that the vertical oil cylinder of each lifting all must take down oil cylinder locking jack, and operation inconvenience is wasted time and energy.In addition, when the chassis needle beam was walked with respect to the beam frame, oil cylinder locking jack might be fractureed owing to the dislocation of stress point up and down
For constructing cross section diameter more than 4m; medium-and-large-sized wholecircle needle beam formula hydraulic pressure steel form carrier less than 12m; its centering body is identical with small-sized wholecircle needle beam formula hydraulic pressure steel form carrier; it also is base before adopting; rear base and translation mechanism; but because its vertical oil cylinder is bigger; the general hydraulic lock that adopts vertical oil cylinder to carry of its oil cylinder protective device; its anti-overturning devices then adopts the A type frame that can slide up and down in company with the flexible of vertical oil cylinder; be provided with fixed mount in vertical oil cylinder bottom on the base; a pair of A type frame along needle beam vertically be arranged in vertical oil cylinder before; after; one end of A type frame is fixedlyed connected with needle beam; the other end is provided with roller; roller is respectively in the fixed mount both sides; roller slides in the both sides of fixed mount, when preventing the needle beam vertical shift forward; after tumble.
In addition; the horizontal node of wholecircle needle beam chassis section and vertical on node location, also the location jack to be set usually, the location jack is after trolley formwork is adjusted to the right place; protrude outwardly to excavation face or molded and contact the accuracy of template position when guaranteeing lining cutting.
According to the existing data that the applicant grasps, at the super-huge wholecircle section tunnel more than 12 meters, still there is not the design and construction experience that adopts wholecircle needle beam formula hydraulic pressure steel form carrier for diameter.Present domestic and international tunnel concrete lining construction to super-huge wholecircle section, all be to carry out construction of concrete lining with limit crown chassis and the layering of bed die chassis, with circular cross section be divided into two the step finish, finish the lining of about 90 ° of circular cross section bottoms earlier, adopt mould, needle beam bed die or the little template lining cutting mode of dragging; Adopt the limit crown chassis section on 270 ° on lining cutting top more at last.The construction of this scheme is complicated, and operation is many, and maximum defective is to be cast with layering twice, and concrete is in conjunction with leakiness, and under powerful water impact, the bottom concrete very easily washes out, and its quality is nothing like disposable wholecircle lining cutting.
For the especially big tunnel wholecircle shape section of diameter greater than 12 meters, because section is big, the structure stress that the formwork structure of traditional structure can't satisfy super-huge wholecircle needle beam formula hydraulic pressure steel form carrier backform template requires and stability requirement, for super-huge wholecircle needle beam formula hydraulic pressure steel form carrier, because the physical dimension of chassis needle beam assembly, beam frame assembly and template assembly etc. is huge, and each several part weight is also heavy than traditional wholecircle needle beam formula hydraulic pressure steel form carrier, and traditional hoisting mechanism traction technique can't satisfy the traction walking requirement of super-huge wholecircle needle beam formula hydraulic pressure steel form carrier.
In addition, for super-huge wholecircle needle beam formula hydraulic pressure steel form carrier, because of each physical dimension of chassis huge, and it is very big to conduct oneself with dignity, and especially in the process that use in the ramp and chassis moves, the longitudinal force that the front and back centering body is subjected to is very big, if adopt the anti-overturning devices of traditional wholecircle needle beam formula hydraulic pressure steel form carrier centering body again, then each vertical oil cylinder of lifting all must take down oil cylinder locking jack, and operation inconvenience is wasted time and energy.In addition, when the chassis needle beam was walked with respect to the beam frame, oil cylinder locking jack might be fractureed owing to the dislocation of stress point up and down.Anti-overturning devices and the connection of translation dolly and the instructions for use that limit method can not satisfy super-huge wholecircle needle beam formula hydraulic pressure steel form carrier of tradition centering body.
Summary of the invention
Do not fit into diameter in the deficiency of the super-huge wholecircle section more than 12 meters in order to overcome existing wholecircle needle beam formula hydraulic pressure steel form carrier formwork structure, technical problem to be solved by this invention provides a kind of its formwork structure applicable to super-huge wholecircle needle beam formula hydraulic pressure steel form carrier and the release method thereof of diameter at the super-huge wholecircle section more than 12 meters.
The technical solution adopted for the present invention to solve the technical problems is: super-huge wholecircle needle beam formula hydraulic pressure steel form carrier; comprise template assembly, needle beam assembly, beam frame assembly, walking mechanism, centering body, hoisting mechanism; the template assembly comprises the longitudinal spliced template group of many groups; every group of template group formed the wholecircle section by backform, right side mould, left side mould and bed die four parts; the both sides of described backform or bed die removably connect with left side mould, right side mould respectively, and backform or bed die are connected with beam frame assembly with vertical adjustment mechanism by level(l)ing mechanism.
The both sides of described bed die are hinged with left side mould, right side mould respectively, bed die is connected by the lower tray of telescopic oil cylinder with beam frame assembly, right side mould, left side mould are connected by the template articulated beam of telescopic oil cylinder with beam frame assembly respectively, and backform is connected with the upper bracket of beam frame assembly with vertical adjustment mechanism by level(l)ing mechanism.
Described hoisting mechanism comprises the upper end traveling wheel on the upper end walking mechanism that is arranged on beam frame assembly and is arranged on lower end traveling wheel on the lower end walking mechanism of beam frame assembly, and the left haulage gear and the right haulage gear that are symmetrically arranged at the chassis longitudinal centre line, left side haulage gear and right haulage gear respectively comprise two elevator traction units, before two elevator traction units, back symmetric arrangement, the wire rope of elevator traction unit draws with the lower end traveling wheel with the upper end traveling wheel of correspondence position simultaneously and is connected, in upper end, needle beam assembly end, the lower end is correspondingly provided with guide pulley rack and following guide pulley rack.
The reel of described elevator traction unit is fixed on the stage casing of needle beam assembly, middle guide pulley rack corresponding to the reel height and position is fixedly arranged in needle beam assembly end, after the leading block group under guide pulley rack reached wire rope passed through after draw the reel top of hoist engine on the guide pulley rack, pass the lower end traveling wheel, leading block group on the guide pulley rack under the wraparound again, upwards through in after the leading block group on the guide pulley rack, last guide pulley rack, pass the upper end traveling wheel, last wraparound is fixed on the guide pulley rack.
Described centering body comprises base and the translation mechanism that is arranged on the base; described translation mechanism comprises translation beam fixedly connected on the base; the translation beam two ends are connected with translation dolly on the base by cross cylinder; the translation dolly is connected with the needle beam assembly by vertical oil cylinder; also be provided with the centering protection mechanism on the base; described centering protection mechanism comprises a pair of vertical slide bar-slider mechanism that is arranged in vertical oil cylinder front and back along the needle beam longitudinal direction; slidely connect vertical slide bar in its vertical sliding sleeve; vertical sliding sleeve is arranged on the base, and vertical slide bar is fixedlyed connected with the needle beam assembly.
Also be provided with vertical oil cylinder unloading pressure protection device between described needle beam assembly and the base, vertical oil cylinder unloading pressure protection device is arranged in the front and back of vertical slide bar-slider mechanism along the needle beam longitudinal direction.
Described vertical oil cylinder unloading pressure protection device comprises the spacing jack of a pair of oil cylinder that is positioned at the described vertical slide bar outside; fixedly connected with base by the component seat in the spacing jack of oil cylinder bottom, described needle beam assembly is supported by corresponding with it component frame in the spacing jack of oil cylinder upper end.
Described each vertical slide bar that is connected on the same base is fixedly connected into rigid frame by tie-beam mutually, and tie-beam and vertical slide bar are connected to vertical slide bar and the vertical non-section of cooperation of sliding sleeve mutually.
The left and right sides of the translation direction of described translation dolly is respectively arranged with limit sliding chutes.
The release method of above-mentioned super-huge wholecircle needle beam formula hydraulic pressure steel form carrier; at first remove being connected between backform or bed die and left side mould, the right side mould; left side mould, right side mould are inwardly received to the demoulding simultaneously then; the vertical adjustment mechanism that is connected with backform or bed die afterwards regains; backform or the bed die demoulding; at last, lifting or reduction beam frame assembly, bed die or the backform demoulding.
The invention has the beneficial effects as follows: improved template assembly structure and regulative mode, realize the symmetrical demoulding and formwork erection, guarantee the stable of super-huge chassis, guarantee that template strength, rigidity meet the requirements, and easy to adjust, practical, and further provide hoisting mechanism and the centering body that is suitable for super-huge wholecircle needle beam formula hydraulic pressure steel form carrier.
Description of drawings
Fig. 1 is the front view of the super-huge wholecircle needle beam of the present invention formula hydraulic pressure steel form carrier.
Fig. 2 is that the A of template assembly among Fig. 1, needle beam assembly and beam frame assembly is to view.
Fig. 3 is the front view of hoisting mechanism among the present invention.
Fig. 4 is that the wire rope of Fig. 3 moves towards schematic diagram.
Fig. 5 is the vertical view of hoisting mechanism among the present invention.
Fig. 6 is the front view of centering body among the present invention.
Fig. 7 is the right view of Fig. 6.
Fig. 8 is along the vertical schematic diagram of base the preceding of needle beam among Fig. 1.
Fig. 9 be among Fig. 1 along needle beam vertically after the schematic diagram of base.
Figure 10 is the schematic diagram of release method of the present invention.
Be labeled as 1-hoisting mechanism, 2-template assembly among the figure, the 3-centering body, 4-beam frame assembly, 5-needle beam assembly, the 6-walking mechanism, 41-lower tray, 42-upper bracket, 43-template articulated beam, 44-level(l)ing mechanism, 45-vertical adjustment mechanism, 61-upper end walking mechanism, 62-lower end walking mechanism, 101-elevator traction unit, the 104-wire rope, the 110-hoist engine, 111-wire rope strainer, guide pulley rack among the 112-, guide pulley rack under the 113-, 114-lower end traveling wheel, the last guide pulley rack of 115-, 116-upper end traveling wheel, 117-leading block group, 118-leading block group, 119-leading block group, 201-backform, 202-left side mould, 203-right side mould, 204-bed die, 205-telescopic oil cylinder, the 301-base, the 302-translation beam, 303-translation dolly, the vertical oil cylinder of 304-, the vertical sliding sleeve of 306-, the vertical slide bar of 307-, the anti-wear abrasive stick of 308-, 309-limit sliding chutes, the spacing jack of 310-oil cylinder, 311-component seat, 312-component frame, 313-locatees jack, the 316-tie-beam, the 317-cross cylinder.
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 10, super-huge wholecircle needle beam formula hydraulic pressure steel form carrier of the present invention comprises template assembly 2, needle beam assembly 5, beam frame assembly 4, walking mechanism 6, centering body 3, hoisting mechanism 1, template assembly 2 comprises the longitudinal spliced template group of many groups, every group of template group formed the wholecircle section by backform 201, right side mould 203, left side mould 202 and bed die 204 4 parts, the both sides of backform 201 removably connect with left side mould 202, right side mould 203 respectively, and backform 201 is connected with beam frame assembly 4 with vertical adjustment mechanism 45 by level(l)ing mechanism 44.In the said structure, because cross dimensions is huge, the template deadweight is very big, being articulated and connected to change into bolt and bearing pin etc. and removably connecting backform 201 and a side side form, to realize the symmetrical demoulding and formwork erection, guarantee the stable of super-huge chassis, avoid deflection to topple, in addition, after the above-mentioned connected mode of backform 201 changes, in order to guarantee the centering of template and tunnel center line, backform 201 is connected with beam frame assembly 4 with vertical adjustment mechanism 45 by level(l)ing mechanism 44, backform 201 can carry out left and right sides centering separately by level(l)ing mechanism 44 to be regulated, and realizes the demoulding and the formwork erection of backform 201 by vertical adjustment mechanism 45.Level(l)ing mechanism 44 and vertical adjustment mechanism 45 can cooperate the translation dolly to realize with level and the vertical telescopic oil cylinder of arranging with reference to existing chassis centering body.
As shown in figure 10, the release method of above-mentioned super-huge wholecircle needle beam formula hydraulic pressure steel form carrier, at first remove being connected between backform 201 and left side mould 202, the right side mould 203, left side mould 202, right side mould 203 are inwardly received to the demoulding simultaneously then, the vertical adjustment mechanism 45 that is connected with backform 201 afterwards regains, and backform 201 demouldings are last, lifting beam frame assembly 4, bed die 204 demouldings.After chassis arrived next station, anti-sequential adjustment template and tunnel lining outline line coincided, and then finish the formwork erection of chassis.This kind release method can guarantee the stable of super-huge chassis, avoids deflection to topple.
As shown in Figure 2, the both sides of described bed die 204 are hinged with left side mould 202, right side mould 203 respectively, bed die 204 is connected with the lower tray 41 of beam frame assembly 4 by telescopic oil cylinder 205, right side mould 203, left side mould 202 are connected with the template articulated beam 43 of beam frame assembly 4 by telescopic oil cylinder 205 respectively, backform 201 is connected with the upper bracket 42 of beam frame assembly 4 with vertical adjustment mechanism 45 by level(l)ing mechanism 44, guarantee that template strength, rigidity meet the requirements, and easy to adjust, practical.
In addition, among the present invention, also can be following similar scheme, that is: the both sides of bed die 204 removably connect with left side mould 202, right side mould 203 respectively, and bed die 204 is connected with beam frame assembly 4 with vertical adjustment mechanism 45 by level(l)ing mechanism 44.At this moment, left side mould 202, right side mould 203 and backform 201 are hinged, its release method is: at first remove being connected between bed die 204 and left side mould 202, the right side mould 203, left side mould 202, right side mould 203 are inwardly received to the demoulding simultaneously then, the vertical adjustment mechanism 45 that is connected with bed die 204 afterwards regains, and bed die 204 demouldings are last, reduce beam frame assembly 4, backform 201 demouldings.
In the above scheme, template all can realize the symmetrical demoulding or formwork erection, and is more stable, is suitable for the operating mode of super-huge wholecircle section.
The movable scheme of regulating of bed die is compared with the movable scheme of regulating of aforementioned backform, and its pluses and minuses are respectively arranged.The advantage of the movable regulation scheme of backform is, left and right side form is connected with bed die, most of template weight is supported by the concrete of having built during the demoulding, shortcoming is, backform is the demoulding at first, but corresponding to the concrete that part of concrete of backform is built exactly at last, the demoulding stand-by period is longer; The advantage of the movable regulation scheme of bed die is; the concrete of bed die correspondence is built earlier; bed die can be regulated the centering construction earlier; regulate left and right side form and backform centering again; save time; the backform finally demould also adapts with the concreting order, and shortcoming is: most of template weight will be born by base by beam frame assembly and needle beam assembly during the demoulding.
As Fig. 3～shown in Figure 5, the present invention has further proposed to be suitable for mutual traction and the mobile needle beam formula hydraulic pressure steel form carrier hoisting mechanism of large-scale needle beam structure and formwork structure, and it can provide reliable tractive force, and guarantees the stability of walking.Described hoisting mechanism 1 comprises the upper end traveling wheel 116 on the upper end walking mechanism 61 that is arranged on beam frame assembly 4 and is arranged on lower end traveling wheel 114 on the lower end walking mechanism 62 of beam frame assembly 4, and the left haulage gear and the right haulage gear that are symmetrically arranged at the chassis longitudinal centre line, left side haulage gear and right haulage gear respectively comprise two elevator traction units 101, before two elevator traction units 101, back symmetric arrangement, the wire rope 104 of elevator traction unit 101 draws with lower end traveling wheel 114 with the upper end traveling wheel 116 of correspondence position simultaneously and is connected, in upper end, needle beam assembly 5 ends, the lower end is correspondingly provided with guide pulley rack 114 and following guide pulley rack 113.
Only driven by a twin drum winch or two single-drum hoists in the prior art, driving force is limited, between the traveling wheel that arranges on the reel of hoist engine and the walking mechanism only before needle beam, upper rear end is provided with leading block, can't guarantee the stability of walking under the fully loaded transportation condition, the present invention compared with prior art, four elevator traction units 101 are distributed in the left front of chassis center line, left back, right front, right back, four hoist engines drive traction simultaneously, tractive force is reliable, four elevator traction units 101 are symmetrically distributed, on the front and back end of needle beam, in, under be provided with a left side, right leading block has guaranteed the stability of walking.
As shown in Figure 4, particularly, below can adopting, wears around mode by wire rope 4, the reel 110 of described elevator traction unit 101 is fixed on the stage casing of needle beam assembly 5, middle guide pulley rack 112 corresponding to reel 110 height and positions is fixedly arranged in needle beam assembly 5 ends, leading block group 117 under guide pulley rack 112 reached wire rope 104 passed through after draw the reel top of hoist engine 110 on the guide pulley rack 113, after 118, pass lower end traveling wheel 114, leading block group 118 on the guide pulley rack 113 under the wraparound again, upwards through in guide pulley rack 112, leading block group 117 on the last guide pulley rack 115, after 119, pass upper end traveling wheel 116, last wraparound is fixed on the guide pulley rack 115.
When needs vertical shift beam frame assembly 4, needle beam assembly 5 fixed-site, build direction by needle beam longitudinal direction and tunnel, reel left front and right front unit is received rope, reel left back and right back unit is put rope, when needs vertical shift needle beam assembly 5, and beam frame assembly 4 fixed-site, receive rope when the reel of left back and right back unit, reel left front and right front unit is put rope.Those skilled in the art can obtain other different concrete scheme again under the prerequisite that need not carry out creative work on above scheme basis, for example, the permanent position of change wire rope termination increases leading block etc. again at the position of necessity.Also can be provided with wire rope strainer 111 between described hoist engine 110 and the middle guide pulley rack 112, guarantee that wire rope 104 is not job-hoped, disorder cable, further guarantee the reliability of traction and the stability of walking.
As Fig. 6～shown in Figure 9; the present invention has further proposed a kind of easy to use and needle beam formula hydraulic pressure steel form carrier centering body that safety is higher; described centering body 3 comprises base 301 and the translation mechanism that is arranged on the base 301; described translation mechanism comprises translation beam fixedly connected on the base 301 302; translation beam 302 two ends are connected with translation dolly 303 on the base 301 by cross cylinder 317; translation dolly 303 is connected with needle beam assembly 5 by vertical oil cylinder 304; this part structure is identical with existing chassis; its key is also to be provided with on the base 301 the centering protection mechanism; described centering protection mechanism comprises a pair of vertical slide bar-slider mechanism that is arranged in vertical oil cylinder 304 front and back along the needle beam longitudinal direction; slidely connect vertical slide bar 307 in its vertical sliding sleeve 306; vertical sliding sleeve 306 is arranged on the base 301, and vertical slide bar 307 is fixedlyed connected with needle beam assembly 5.Vertical slide bar 307 slides along with the lifting of vertical oil cylinder 304 in vertical sliding sleeve 306; basic maintenance face contact between the two; no matter be under fully loaded transportation condition; when still carrying out the chassis vertical shift under the acclive condition; can both guarantee not unbalance loading of vertical oil cylinder 304; effectively protect vertical oil cylinder 304; and prevent toppling of chassis; above-mentioned centering protection mechanism also can be applied to the vertical oil cylinder protection of other vertical shift and centering body; for example the build bridge vertical oil cylinder protection of machine, and, need frequent dismounting oil cylinder locking jack than existing " eight " word anti-overturning devices of falling; do not need dismounting, easy to use.
As Fig. 6～shown in Figure 9; can not lose efficacy because of the stressed excessive auto-lock function that causes in order to ensure vertical oil cylinder 304; also be provided with vertical oil cylinder unloading pressure protection device between described needle beam assembly 5 and the base 301; vertical oil cylinder unloading pressure protection device is arranged in the front and back of vertical slide bar-slider mechanism along the needle beam longitudinal direction; when vertical oil cylinder unloading pressure protection device is mainly used in bearing chassis and is in the concreting duty by template assembly 2; the pressure that beam frame assembly 4 transmits; play the effect that substitutes or share vertical oil cylinder 304 pressure that bears; only adopt hydraulic lock as protective device with respect to existing medium-and-large-sized needle beam formula hydraulic pressure steel form carrier; have double insurance, safer reliable.
As Fig. 6～shown in Figure 9; for the purpose of easy to operate; described vertical oil cylinder unloading pressure protection device comprises the spacing jack 310 of a pair of oil cylinder that is positioned at described vertical slide bar 307 outsides; fixedly connected with base 301 by component seat 311 in the spacing jack of oil cylinder 310 bottoms; described needle beam assembly 5 is supported by corresponding with it component frame 312 in the spacing jack of oil cylinder 310 upper ends; the spacing jack 310 of oil cylinder has only the lower end to be fixed on the base 301; during the vertical oil cylinder 304 of lifting; need not it is removed; compare more convenient practicality with the oil cylinder locking jack that existing chassis uses.
As Fig. 6; shown in Figure 7; in order further to make needle beam formula hydraulic pressure steel form carrier centering body of the present invention can be applied to construct cross section diameter greater than the super-huge wholecircle needle beam of 12m chassis; preferably described each vertical slide bar 307 that is connected on the same base 301 is fixedly connected into rigid frame by tie-beam 316 mutually; the anti-bias load ability of rigid frame more is better than each single vertical slide bar 307; protect not unbalance loading of vertical oil cylinder 304 by this rigid frame; form the rigidity shift sleeve structure between rigid frame and the base 301; the protection chassis is not tumbled; obviously; tie-beam 316 and vertical slide bar 307 are connected to vertical slide bar 307 and the vertical non-section of cooperation of sliding sleeve 306 mutually, in order to avoid influence the slip of vertical slide bar 307.In addition, the sliding stroke of vertical slide bar 307 obviously should adapt with the stroke of vertical oil cylinder 304.
As shown in Figure 6 and Figure 7, in order to improve the application life of vertical slide bar 307, should described vertical slide bar 307 be provided with anti-wear abrasive stick 308 with the contact surface of vertical sliding sleeve 306, anti-wear abrasive stick 308 generally is arranged on the vertical slide bar 307 for ease of fixing.
As shown in Figure 7, in order further to make needle beam formula hydraulic pressure steel form carrier centering body of the present invention can be applied to the big operating mode of the gradient, should be respectively arranged with limit sliding chutes 309 in the left and right sides of the translation direction of described translation dolly 303.
Claims (8)
1. super-huge wholecircle needle beam formula hydraulic pressure steel form carrier, comprise template assembly (2), needle beam assembly (5), beam frame assembly (4), walking mechanism (6), centering body (3), hoisting mechanism (1), template assembly (2) comprises the longitudinal spliced template group of many groups, every group of template group is by backform (201), right side mould (203), left side mould (202) and bed die (204) four parts are formed the wholecircle section, it is characterized in that: the both sides of described backform (201) or bed die (204) respectively with left side mould (202), right side mould (203) removably connects, backform (201) or bed die (204) are connected with beam frame assembly (4) with vertical adjustment mechanism (45) by level(l)ing mechanism (44), described hoisting mechanism (1) comprises the upper end traveling wheel (116) on the upper end walking mechanism (61) that is arranged on beam frame assembly (4) and is arranged on lower end traveling wheel (114) on the lower end walking mechanism (62) of beam frame assembly (4), and the left haulage gear and the right haulage gear that are symmetrically arranged at the chassis longitudinal centre line, left side haulage gear and right haulage gear respectively comprise two elevator traction units (101), two elevator traction units (101) are preceding, back symmetric arrangement, the wire rope (104) of elevator traction unit (101) draws with lower end traveling wheel (114) with the upper end traveling wheel (116) of correspondence position simultaneously and is connected, in upper end, needle beam assembly (5) end, the lower end is correspondingly provided with guide pulley rack (114) and following guide pulley rack (113).
2. super-huge wholecircle needle beam formula hydraulic pressure steel form carrier as claimed in claim 1, it is characterized in that: the both sides of described bed die (204) respectively with left side mould (202), right side mould (203) is hinged, bed die (204) is connected with the lower tray (41) of beam frame assembly (4) by telescopic oil cylinder (205), right side mould (203), left side mould (202) is connected with the template articulated beam (43) of beam frame assembly (4) by telescopic oil cylinder (205) respectively, and backform (201) is connected with the upper bracket (42) of beam frame assembly (4) with vertical adjustment mechanism (45) by level(l)ing mechanism (44).
3. super-huge wholecircle needle beam formula hydraulic pressure steel form carrier as claimed in claim 1, it is characterized in that: the reel (110) of described elevator traction unit (101) is fixed on the stage casing of needle beam assembly (5), middle guide pulley rack (112) corresponding to reel (110) height and position is fixedly arranged in needle beam assembly (5) end, leading block group (117 under guide pulley rack (112) reached wire rope (104) passed through after draw the reel top of hoist engine (110) on the guide pulley rack (113), 118) after, pass lower end traveling wheel (114), leading block group (118) on the guide pulley rack (113) under the wraparound again, upwards through in guide pulley rack (112), leading block group (117 on the last guide pulley rack (115), 119) after, pass upper end traveling wheel (116), last wraparound is fixed on the guide pulley rack (115).
4. super-huge wholecircle needle beam formula hydraulic pressure steel form carrier as claimed in claim 1; it is characterized in that: described centering body (3) comprises base (301) and is arranged on translation mechanism on the base (301); described translation mechanism comprises upward fixedly connected translation beam (302) of base (301); translation beam (302) two ends are connected with translation dolly (303) on the base (301) by cross cylinder (317); translation dolly (303) is connected with needle beam assembly (5) by vertical oil cylinder (304); base also is provided with the centering protection mechanism on (301); described centering protection mechanism comprises a pair of vertical slide bar-slider mechanism that is arranged in vertical oil cylinder (304) front and back along the needle beam longitudinal direction; slidely connect vertical slide bar (307) in its vertical sliding sleeve (306); vertical sliding sleeve (306) is arranged on the base (301), and vertical slide bar (307) is fixedlyed connected with needle beam assembly (5).
5. super-huge wholecircle needle beam formula hydraulic pressure steel form carrier as claimed in claim 4; it is characterized in that: also be provided with vertical oil cylinder unloading pressure protection device between described needle beam assembly (5) and the base (301), vertical oil cylinder unloading pressure protection device is arranged in the front and back of vertical slide bar-slider mechanism along the needle beam longitudinal direction.
6. super-huge wholecircle needle beam formula hydraulic pressure steel form carrier as claimed in claim 5; it is characterized in that: described vertical oil cylinder unloading pressure protection device comprises the spacing jack of a pair of oil cylinder (310) that is positioned at described vertical slide bar (307) outside; fixedly connected with base (301) by component seat (311) in the spacing jack of oil cylinder (310) bottom, described needle beam assembly (5) is supported by corresponding with it component frame (312) in the spacing jack of oil cylinder (310) upper end.
7. as claim 4,5 or 6 described super-huge wholecircle needle beam formula hydraulic pressure steel form carriers, it is characterized in that: described each vertical slide bar (307) that is connected on the same base (301) is fixedly connected into rigid frame by tie-beam (316) mutually, and tie-beam (316) and vertical slide bar (307) are connected to vertical slide bar (307) and the vertical non-section of cooperation of sliding sleeve (306) mutually.
8. as claim 4,5 or 6 described super-huge wholecircle needle beam formula hydraulic pressure steel form carriers, it is characterized in that: the left and right sides of the translation direction of described translation dolly (303) is respectively arranged with limit sliding chutes (309).
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| CN 201110453620 CN102425435B (en) | 2011-12-30 | 2011-12-30 | Ultra-large whole-circle needle beam type hydraulic steel mould trolley and demoulding method thereof |
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| CN 201110453620 CN102425435B (en) | 2011-12-30 | 2011-12-30 | Ultra-large whole-circle needle beam type hydraulic steel mould trolley and demoulding method thereof |
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| CN102425435B true CN102425435B (en) | 2013-09-04 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102808632B (en) * | 2012-08-17 | 2015-02-04 | 北京市政建设集团有限责任公司 | Full-circle type formwork trolley assembly and construction method thereof |
| CN102865086A (en) * | 2012-09-13 | 2013-01-09 | 中国葛洲坝集团机械船舶有限公司 | Full hydraulic needle beam steel mold trolley |
| CN103982200B (en) * | 2014-05-21 | 2015-10-14 | 中国葛洲坝集团股份有限公司 | Slide rail Mobile steel mould trolley in tunneling boring |
| CN104153791A (en) * | 2014-08-11 | 2014-11-19 | 中铁建大桥工程局集团第六工程有限公司 | Assembly trolley for prefabricated assembly type subway station |
| CN107130981B (en) * | 2017-06-29 | 2019-03-01 | 中国水利水电第十一工程局有限公司 | A kind of needle beam type wholecircle telescoping steel form installation method |
| CN108457675A (en) * | 2018-04-18 | 2018-08-28 | 何志杨 | A kind of formwork jumbo of automatic lifting walking |
| CN109139055A (en) * | 2018-10-29 | 2019-01-04 | 中铁十二局集团有限公司 | Wholecircle jacked piles with small section needle beam trolley lining construction method |
| CN109458199A (en) * | 2018-12-24 | 2019-03-12 | 中铁隧道集团四处有限公司 | Extendible dynamic formula job platform in lining construction |
| CN111594228B (en) * | 2020-05-25 | 2022-01-28 | 浙江世润建创科技发展有限公司 | Lining of round water delivery tunnel steel mould trolley and construction method |
| CN114033436A (en) * | 2021-12-09 | 2022-02-11 | 成都科利特机械制造有限公司 | Full-circular needle beam lining trolley and construction method thereof |
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