CN201972096U - Cross-tunnel lower guide beam type fixed-point hoisting bridge girder erection machine - Google Patents
Cross-tunnel lower guide beam type fixed-point hoisting bridge girder erection machine Download PDFInfo
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- CN201972096U CN201972096U CN2010206876651U CN201020687665U CN201972096U CN 201972096 U CN201972096 U CN 201972096U CN 2010206876651 U CN2010206876651 U CN 2010206876651U CN 201020687665 U CN201020687665 U CN 201020687665U CN 201972096 U CN201972096 U CN 201972096U
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Abstract
The utility model relates to a cross-tunnel lower guide beam type fixed-point hoisting bridge girder erection machine, belonging to railroad bridge erection equipment. The hoisting bridge girder erection machine is characterized in that a foldable front landing leg and an auxiliary landing leg are connected on the bottom surface of the front part of a girder, and an O-shaped rear landing leg is connected at the rear end of the girder; a front girder hoisting crane and a rear girder hoisting crane are arranged on the girder, a winch assembly is arranged in the middle of the girder, a guide beam hoisting machine and a guide beam hole-passing crane are connected on a track at the upper end surface of the girder, and the guide beam hole-passing crane is positioned at the front end of the girder; a lower girder guiding machine comprises a front girder landing leg and a rear girder landing leg, and a front guide beam landing leg and a rear guide beam landing leg are arranged at the front and rear ends of the girder of the lower girder guide beam. The cross-tunnel lower guide beam type fixed-point hoisting bridge girder erection machine has the advantages that the carrying tunnel-crossing state is the state that the guide beam is arranged in front, and the girder guiding machine can be in position directly during tunnel-exiting, thus greatly improving the efficiency of whole machine resetting and erection after tunnel-exiting, having good working condition adaptability, saving the construction time and the construction cost, and being steady, safe and reliable.
Description
Technical field
The utility model relates to a kind of railroad bridge spanning equipment, nose girder formula fixed point lifting bridge formation machine under particularly a kind of tunnel type excessively.
Background technology
The erection construction equipment of high ferro bridge is the bridge formation machine, be divided into integration of transporting and building machine and the split type bridge formation machine of fortune frame, wherein transport the split type bridge formation machine of frame and be Beam transportation vehicle and cooperate the bridge formation machine to finish to set up, its bridge formation machine is divided into towed non-fixed point lifting bridge formation machine and following nose girder formula fixed point is lifted by crane the bridge formation machine.Though the integration of transporting and building machine can pass through the tunnel, it so its efficient is extremely low, is not suitable for the demand of setting up at a distance because the fortune beam can not carry out simultaneously with the operating mode of setting a roof beam in place.The non-fixed point bridge formation of towed machine then is that the wire rope of overhead traveling crane pulls and advances before its feeding beam process is all mistakes, and is big to the support reaction of bridge formation machine supporting leg, and process is impacted big, instability.
Following nose girder formula fixed point lifting bridge formation machine is efficient with it, safety, stressed advantage such as rationally more and more are used in the high ferro construction in area, the central and east, but has following shortcoming because of its feeding beam mode and following nose girder via hole mode:
1, the complete machine superelevation is super wide, must disintegration could pack by Beam transportation vehicle to pass through the tunnel;
2, can't realize closely setting a roof beam in place before the tunnel and after going out the tunnel.
The utility model content
The purpose of this utility model is that a kind of nose girder formula fixed point lifting bridge formation machine under the tunnel type of crossing will be provided, and it is super wide to solve the complete machine superelevation, must disintegration could pack by Beam transportation vehicle to pass through the tunnel; Can't realize before the tunnel and go out the problem of closely setting a roof beam in place behind the tunnel.
The purpose of this utility model is achieved in that this lifting bridge formation machine comprises erecting machine and following nose girder machine; Described erecting machine comprises girder, O type rear support leg, collapsible front leg strut, auxiliary supporting leg, preceding hanging beam overhead traveling crane, back hanging beam overhead traveling crane, elevator assembly, nose girder loop wheel machine, nose girder via hole overhead traveling crane, following nose girder girder, nose girder front leg strut and nose girder rear support leg, on the bottom surface of girder front portion, be connected with collapsible front leg strut and auxiliary supporting leg, be connected with O type rear support leg in main number beam rear end; Hanging beam overhead traveling crane, back hanging beam overhead traveling crane before on girder, being equipped with, the girder middle part is equipped with the elevator assembly, and nose girder loop wheel machine and nose girder via hole overhead traveling crane are connected on the track of girder upper surface, and nose girder via hole overhead traveling crane is positioned at the front end of girder; Described nose girder machine down comprises nose girder girder nose girder front leg strut and nose girder rear support leg down, in the forward and backward end of following nose girder girder nose girder front leg strut and nose girder rear support leg is set.
Described girder comprises box beam, back contact beam, middle contact beam and preceding contact beam, box beam has two, parallel placement, be vertical fish belly type, between two parallel box beam, be connected with back contact beam, middle contact beam and preceding contact beam, by three contact beams two box beam are connected, contact beam place, back girder arranged outside has the installation position of O type rear support leg, and middle contact beam inside is provided with sleeve cavity.
Described O type rear support leg by lower transverse beam, turn beam, L beam, articulated mounting, support cylinder, running mechanism and form, lower transverse beam is one, respectively be linked in sequence at lower transverse beam two ends and turned beam and L beam, form positive U type structure, the opening part of two L beams all is connected with girder by bolt in the upper end, between girder, be connected with back contact beam, form O type enclosed construction, described lower transverse beam, turn beam, L beam, girder and back contact beam and be box-structure; Between L beam and girder and O type rear support leg be connected the position and be provided with articulated mounting between the beam with turning, all can fold around its upset; Two ends of described O type rear support leg lower transverse beam bottom surface respectively are connected with support cylinder and running mechanism, realize that complete machine supports and the cart traveling.
Described collapsible front leg strut comprises joint on the front leg strut, middle joint, following joint and ball pivot load-bearing seat, joint is hinged by bearing pin and girder on the front leg strut, the ball pivot of connection is all arranged at middle joint and the bottom of saving down, middle joint and following joint are linked in sequence, side at middle joint and following joint is hinged, middle joint is provided with the box sleeve, the bottom that ball pivot load-bearing seat is arranged in joint or saves down.
Described auxiliary supporting leg comprises regulates inner sleeve, forward running mechanism and reverse running mechanism, regulate in the sleeve cavity of contact beam in the inner sleeve insertion, fix by bearing pin, be connected with forward running mechanism and reverse running mechanism in the bottom of regulating inner sleeve, forward running mechanism and reverse running mechanism are two covers, symmetry is installed, and is positioned at the upper end and two sides of nose girder girder down.
Described elevator assembly comprises link and elevator, it is inboard that link is connected the girder middle part, and elevator has four groups and all is connected on the link, wherein two groups of elevator co-operation, two groups of elevators work alone in addition, and elevator links to each other with the fixed pulley group of forward and backward hanging beam overhead traveling crane by wire rope.
The hanging beam overhead traveling crane is identical with hanging beam sky, back bassinet structure before described, include overhead traveling crane frame, fixed pulley assembly, movable pulley assembly and suspender, the overhead traveling crane frame rides on two girders, there is the transverse hydraulic oil cylinder to be connected with the overhead traveling crane frame with vertical hydraulic jack, fixed pulley assembly is fixed on the overhead traveling crane frame, links to each other with movable pulley assembly on publishing in instalments suspender by wire rope.
Described nose girder loop wheel machine comprises gantry, connecting rod, side arm, from running mechanism, lift cylinder and oil cylinder; Gantry is " ┏ ┒ " shape, and both sides are by riding over from running mechanism on two girders in the gantry, and the upper end is connected with lift cylinder in gantry, and lift cylinder has four; The gantry lower end all is connected with side arm one end by articulated mounting, between the other end of side arm and gantry upper end, be connected with connecting rod by articulated mounting, on the side arm of connecting rod lower end, be connected with oil cylinder, the montant of gantry, connecting rod and side arm are formed firm triangular structure, and two side arms is hung wing by oil cylinder and nose girder and linked to each other.
Described nose girder via hole overhead traveling crane comprises hangs running mechanism, fixed pulley group, running block and suspender, hang walking mechanism and have four, four are one group and are positioned on the girder bottom guide track, hanging at one group all has an elevator in the capable mechanism, each elevator all is connected with running block through the fixed pulley group by wire rope, suspender is installed on the running block, and the lifting coupling arrangement of nose girder and nose girder front leg strut is set down on the suspender.
Described nose girder girder down is the rectangle box type structure girder, establishes auxiliary supporting leg forward walking rails above, and upper side is formed another little box-structure, divides into the auxiliary reverse walking rails of supporting leg, and the rear portion is provided with the wing type and hangs wing, and the middle part is provided with the nose girder overhead traveling crane and plays the sling lifting hole(eyelet).
Described nose girder rear support leg is connected with following nose girder girder by bolt, and is provided with hingedly, can remove turnover forward behind the bolt, reduces the height of nose girder machine at any time.Joint is the sleeve fit structure up and down, can regulate height.
Described nose girder front leg strut is connected with following nose girder girder by bearing pin, the height of the nose girder machine when reducing tunnel of can folding back.Joint is the sleeve fit structure up and down, can regulate height.
Beneficial effect, owing to adopted such scheme, nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively described in the utility model, be applicable to normally setting up of high-speed railway large-tonnage box beam bridge, can also zero disassemble, by self folding realization weight reducing, pack double track tunnel by steamboat tire Beam transportation vehicle through speed per hour 250km/h, adaptability for working condition is good, save the engineering time, increase work efficiency, save construction cost, its concrete advantage and good effect are: the characteristics of crossing nose girder formula fixed point lifting bridge formation machine maximum under the tunnel type zero were disassembled tunnel exactly, promptly can fold step by step by O type rear support leg, the method of the sagging side arm of nose girder loop wheel machine reduces the complete machine width, and by the method reduction complete machine height of auxiliary supporting leg reduction height, the realization Beam transportation vehicle was packed tunnel; Cross the design of the fixed point of nose girder formula under tunnel type lifting bridge formation machine fish belly sill, the main frame height is reduced, the girder two ends can be goed deep into tunnel internal and set up, and realize that the tunnel face zero distance sets up; Reached the purpose of this utility model.
Advantage: this lifting bridge formation machine can also zero be disassembled except that being applicable to normally the setting up of high-speed railway large-tonnage box beam bridge, and foldingly realizes weight reducing by self, pack double track tunnel by steamboat tire Beam transportation vehicle through speed per hour 250km/h, adaptability for working condition is good, saves the engineering time, increases work efficiency, save construction cost, cross the mode of nose girder formula fixed point lifting bridge formation machine employing fixed point feeding beam fixed point lifting under the tunnel type, overall process does not steadily have impact, and each supporting leg is stressed evenly, support reaction is little, and is safe and reliable; Cross under the tunnel type nose girder formula fixed point lifting bridge formation machine nose girder via hole mode and be nose girder loop wheel machine, auxiliary supporting leg, nose girder overhead traveling crane and guide and support mobilely, be always simply-supported state, steadily safety; Crossing under the tunnel type nose girder formula fixed point lifting bridge formation machine, to pack the tunnel state be nose girder forward type state, and the nose girder machine can be directly in place when going out tunnel, improved greatly the efficient that complete machine resets and sets up behind the tunnel.
Description of drawings
Fig. 1 is a structure chart of crossing nose girder formula fixed point lifting bridge formation machine under the tunnel type described in the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is an A-A sectional view among Fig. 1, the machine O type of promptly building bridge rear support leg profile.
Fig. 4 is the folded state of O type rear support leg when crossing the tunnel.
Fig. 5 is a B-B sectional view among Fig. 1, the collapsible front leg strut profile of the machine of promptly building bridge.
Fig. 6 is a C-C sectional view among Fig. 1, i.e. the auxiliary supporting leg profile of bridge formation machine.
Fig. 7 is a D-D sectional view among Fig. 1, the machine elevator assembly profile of promptly building bridge.
Fig. 8 is an E-E sectional view among Fig. 1, the profile when promptly building bridge machine front and back hanging beam overhead traveling crane hanging beam.
Fig. 9 is a F-F sectional view among Fig. 1, the disconnected cross section of the machine nose girder loop wheel machine of promptly building bridge.
Figure 10 is nose girder loop wheel machine sagging contraction state when crossing the tunnel.
Figure 11 is a G-G sectional view among Fig. 1, the disconnected cross section of the machine nose girder overhead traveling crane of promptly building bridge.
Figure 12 is a H-H parting face among Fig. 1, the machine nose girder machine of promptly the building bridge cross section of breaking.
Figure 13 is before the bridge formation machine is crossed the tunnel, removes O type rear support leg lower transverse beam schematic diagram.
Among the figure: 1, girder; 2, O type rear support leg; 3, collapsible front leg strut; 4, auxiliary supporting leg; 5, preceding hanging beam overhead traveling crane; 6, back hanging beam overhead traveling crane; 7, elevator assembly; 8, nose girder loop wheel machine; 9, nose girder via hole overhead traveling crane; 10, following nose girder girder; 11, nose girder front leg strut; 12, nose girder rear support leg; 13, box beam; 14, back contact beam; 15, middle contact beam; 16, preceding contact beam; 17, lower transverse beam; 18, turn beam; 19, L beam; 20, articulated mounting; 21, support cylinder; 22, running mechanism; 23, save on the front leg strut; 24, middle joint; 25, save down; 26, ball pivot load-bearing seat; 27, regulate inner sleeve; 28, forward running mechanism; 29, reverse running mechanism; 30, link; 31, elevator; 32, overhead traveling crane frame; 33, fixed pulley assembly; 34, movable pulley assembly; 35, suspender; 36, gantry; 37, connecting rod; 38, side arm; 39, from running mechanism; 40, lift cylinder; 41, oil cylinder; 42, hang running mechanism; 43, fixed pulley group; 44, running block; 45, suspender; 46, forward walking rails; 49, Beam transportation vehicle; 50, carry the beam dolly on the back; 51, jacking support.
The specific embodiment
Embodiment 1: this lifting bridge formation machine comprises erecting machine and following nose girder machine; Described erecting machine comprises girder 1, O type rear support leg 2, collapsible front leg strut 3, auxiliary supporting leg 4, preceding hanging beam overhead traveling crane 5, back hanging beam overhead traveling crane 6, elevator assembly 7, nose girder loop wheel machine 8, nose girder via hole overhead traveling crane 9, following nose girder girder 10 nose girder front leg struts 11 and nose girder rear support leg 12, on the bottom surface of girder 1 front portion, be connected with collapsible front leg strut 3 and auxiliary supporting leg 4, be connected with O type rear support leg 2 at main beam rear end; Hanging beam overhead traveling crane 5, back hanging beam overhead traveling crane 6 before on girder 1, being equipped with, the girder middle part is equipped with elevator assembly 7, and nose girder loop wheel machine 8 and nose girder via hole overhead traveling crane 9 are connected on the track of girder 1 upper surface, and nose girder via hole overhead traveling crane 9 is positioned at the front end of girder 1; Described nose girder machine down comprises nose girder girder 10 nose girder front leg struts 11 and nose girder rear support leg 12 down, in the forward and backward end of following nose girder girder 10 nose girder front leg strut 11 and nose girder rear support leg 12 is set.
Described girder comprises box beam 13, back contact beam 14, middle contact beam 15 and preceding contact beam 16, box beam 13 has two, parallel placement, be vertical fish belly type, between two parallel box beam 13, be connected with back contact beam 14, middle contact beam 15 and preceding contact beam 16, by three contact beams two box beam are connected, back contact beam 14 place's girder arranged outside have the installation position of O type rear support leg, and middle contact beam 15 inside are provided with sleeve cavity.
Described O type rear support leg by lower transverse beam 17, turn beam 18, L beam 19, articulated mounting 20, support cylinder 21 and running mechanism 22 and form, lower transverse beam is one, respectively be linked in sequence at lower transverse beam two ends and turned beam and L beam, form positive U type structure, the opening part of two L beams all is connected with girder by bolt in the upper end, between girder, be connected with back contact beam 14, form O type enclosed construction, described lower transverse beam 17, turn beam 18, L beam 19, girder and back contact beam 14 and be box-structure; Between L beam 19 and girder and O type rear support leg be connected the position and be provided with articulated mounting 20 between the beam 18 with turning, all can fold around its upset; Two ends of described O type rear support leg lower transverse beam bottom surface respectively are connected with support cylinder 21 and running mechanism 22, realize that complete machine supports and the cart traveling.
Described collapsible front leg strut comprises and saves 23 on the front leg strut, middle joint 24, saves 25 and ball pivot load-bearing seat 26 down, joint 23 is hinged by bearing pin and girder 1 on the front leg strut, can fold to the girder rear after removing stopping means, be adjacent to girder, its top is provided with from the traveling hanging mechanism, walks by motor-driven; The ball pivot of connection is all arranged at the bottom of middle joint 24 and following joint 25, and middle joint 24 is linked in sequence with following joint 25, and hinged with a side that saves 25 down at middle joint 24, middle joint is provided with the box sleeve, can regulate highly, and ball pivot load-bearing seat 26 is arranged in the bottom of joint 24 or following joint 25.
Described auxiliary supporting leg comprises regulates inner sleeve 27, forward running mechanism 28 and reverse running mechanism 29, regulate in the sleeve cavity of contact beam 15 in inner sleeve 27 insertions, fix by bearing pin, be connected with forward running mechanism 28 and reverse running mechanism 29 in the bottom of regulating inner sleeve, forward running mechanism 28 and reverse running mechanism 29 are two covers, symmetry is installed, and is positioned at the upper end and two sides of nose girder girder down.
Described elevator assembly comprises link 30 and elevator 31, it is inboard that link 30 is connected the girder middle part, and elevator has four groups and all is connected on the link, wherein two groups of elevator 31 co-operation, two groups of elevators work alone in addition, and elevator links to each other with the fixed pulley group of forward and backward hanging beam overhead traveling crane by wire rope.
The hanging beam overhead traveling crane is identical with hanging beam sky, back bassinet structure before described, include overhead traveling crane frame 32, fixed pulley assembly 33, movable pulley assembly 34 and suspender 35, overhead traveling crane frame 32 rides on two girders 1, there is the transverse hydraulic oil cylinder to be connected with the overhead traveling crane frame, and can carries out horizontal and vertical fine setting by two hydraulic jacks with vertical hydraulic jack; Fixed pulley assembly 33 is fixed on the overhead traveling crane frame, links to each other with movable pulley assembly 34 on publishing in instalments suspender 35 by wire rope.
Described nose girder loop wheel machine comprises gantry 36, connecting rod 37, side arm 38, from running mechanism 39, lift cylinder 40 and oil cylinder 41; Gantry 36 is " ┏ ┒ " shape, and both sides are by riding over from running mechanism 39 on two girders in the gantry, and the upper end is connected with lift cylinder 40 in gantry, and lift cylinder has four; The gantry lower end all is connected with side arm one end by articulated mounting, between the other end of side arm and gantry upper end, be connected with connecting rod 37 by articulated mounting, on the side arm of connecting rod lower end, be connected with oil cylinder 41, the montant of gantry, connecting rod and side arm are formed firm triangular structure, stressed reasonable, reliable in structure.The gantry inboard has from running mechanism 39 realizes from walking four lift cylinders 40 being set, and the hanging beam overhead traveling crane moves before and after can guiding and supporting, two side arms is hung wing by oil cylinder 41 and nose girder and is linked to each other, and two side arms is provided with articulated mounting, can be free sagging, reduce width dimensions, so that pass through the tunnel smoothly.
Described nose girder via hole overhead traveling crane comprises hangs running mechanism 42, fixed pulley group 43, running block 44 and suspender 45; Hang walking mechanism 42 and have four, four are one group and are positioned on the girder bottom guide track, hanging at one group all has an elevator in the capable mechanism, each elevator all is connected with running block 44 through fixed pulley group 43 by wire rope, suspender 45 is installed on the running block, and the lifting coupling arrangement of nose girder and nose girder front leg strut is set down on the suspender.
Described nose girder girder down is the rectangle box type structure girder, establish auxiliary supporting leg forward walking rails 46 above, upper side is formed another little box-structure, divides into the auxiliary reverse walking rails 47 of supporting leg, the rear portion is provided with the wing type and hangs wing 48, and the middle part is provided with the nose girder overhead traveling crane and plays the sling lifting hole(eyelet).
Described nose girder rear support leg is connected with following nose girder girder by bolt, and is provided with hingedly, can remove turnover forward behind the bolt, reduces the height of nose girder machine at any time.Joint is the sleeve fit structure up and down, can regulate height.
Described nose girder front leg strut is connected with following nose girder girder by bearing pin, the height of the nose girder machine when reducing tunnel of can folding back.Joint is the sleeve fit structure up and down, can regulate height.
In Fig. 1 and Fig. 2, nose girder formula fixed point lifting bridge formation machine comprises erecting machine and following nose girder machine under the tunnel type excessively described in the utility model.Described erecting machine comprises girder 1, be O type rear support leg 2, collapsible front leg strut 3, auxiliary supporting leg 4 from back to front successively on girder, hanging beam overhead traveling crane 5, back hanging beam overhead traveling crane 6 before on girder, being equipped with, the girder middle part is provided with elevator assembly 7, girder middle part upper surface is provided with nose girder loop wheel machine track, front end semi girder floor is provided with nose girder via hole overhead traveling crane hanging rail, and nose girder loop wheel machine 8 and 9 travelings of nose girder via hole overhead traveling crane are on the girder track; Described nose girder facility down have following nose girder girder 10, and end is provided with nose girder front leg strut 11 and nose girder rear support leg 12 before and after it.
In Fig. 1 and Fig. 2, described girder comprises the box beam 13 of two vertical fish belly types, by three contact beams two box beam are connected, and the contact beam 14 girder arranged outside O of place type rear support leg installation positions, back, middle contact beam 15 inside are provided with sleeve cavity;
In Fig. 3, described O type rear support leg by lower transverse beam 17, turn beam 18 and L beam 19 and adopt Bolt Connection to form positive U type structure, by bolt with after girder is connected, again with after get in touch beam 14 and form O type enclosed constructions, its cross section is box-structure, the carrying force structure is reasonable, the load bearing requirements in the time of can satisfying hanging beam.
In Fig. 3 and Fig. 4, described O type rear support leg L beam 19 is connected the position and turns beam 18 articulated mounting 20 all is set with girder O type rear support leg, remove flange bolt after, can be folding around its upset, dwindle the complete machine width dimensions, reached the requirement in tunnel;
In Fig. 3, described O type rear support leg lower transverse beam is provided with support cylinder 21 and running mechanism 22, and support cylinder adopts mechanical locking mechanism, and oil cylinder piston does not stress when guaranteeing carrying.Back traveling fulcrum when running mechanism is erecting machine cart traveling via hole.
In Fig. 5, joint is 23 hinged by bearing pin and girder on the described collapsible front leg strut, and removing can be folding to the girder rear behind the stopping means, is adjacent to girder, and its top is provided with from the traveling hanging mechanism, by the motor-driven walking, realizes that the front leg strut change strides; In joint 24 and following joint 25 positions that are connected of all establishing ball pivot load-bearing seat 26, by different connection realizations normally set up with front leg strut on the different operating modes of abutment.Following joint is provided with the box sleeve, can regulate height;
In Fig. 6, in the sleeve cavity of described auxiliary supporting leg by the deeply middle contact beam 15 of adjusting inner sleeve 27, to fix by bearing pin, the bottom is provided with forward running mechanism 28 and reverse running mechanism 29.Positive running mechanism and O type rear support leg running mechanism are realized erecting machine traveling via hole jointly, and anti-running mechanism and nose girder loop wheel machine cooperate finishes nose girder migration via hole.
In Fig. 7, described elevator assembly is fixing inboard with the girder middle part by link 30, two elevator 31 co-operation wherein, and two elevators work alone in addition, and elevator links to each other with the fixed pulley group of forward and backward hanging beam overhead traveling crane by wire rope.
In Fig. 8, described preceding hanging beam overhead traveling crane and back hanging beam overhead traveling crane are made up of overhead traveling crane frame 32, fixed pulley assembly 33, movable pulley assembly 34, suspender 35; The overhead traveling crane frame rides on the girder, and can carry out horizontal and vertical fine setting by hydraulic jack, and realize beam contraposition and curve are set a roof beam in place; Fixed pulley assembly is fixed on the overhead traveling crane frame, links to each other with running block on publishing in instalments suspender by wire rope.
In Fig. 9 and Figure 10, described nose girder loop wheel machine is the Ω shape, and 36 one-tenth " ┏ ┒ " shape reverse of gantry are buckled on two girders, forms firm triangular structure by connecting rod 37 and side arm 38, and is stressed reasonable, reliable in structure.Gantry is provided with from running mechanism 39 and realizes from walking four lift cylinders 40 being set, and the hanging beam overhead traveling crane moves before and after can guiding and supporting, two side arms is hung wing by oil cylinder 41 and nose girder and is linked to each other, and two side arms is provided with articulated mounting, can be free sagging, reduce width dimensions, so that pass through the tunnel smoothly.
In Figure 11, described nose girder via hole overhead traveling crane is hung running mechanism 42 by four and is walked in the girder bottom guide track, on establish two elevators, be connected with running block 44 through fixed pulley group 43 by wire rope, suspender 45 is installed on the running block, and the lifting coupling arrangement of nose girder and nose girder front leg strut is set down on the suspender.
In Fig. 2 and Figure 12, described nose girder girder down is the rectangle box type structure girder, establishes auxiliary supporting leg forward walking rails 46 above, upper side is formed another little box-structure, divide into the auxiliary reverse walking rails 47 of supporting leg, the rear portion is provided with the wing type and hangs wing 48, and the middle part is provided with the nose girder overhead traveling crane and plays the sling lifting hole(eyelet).
In Fig. 1 and Figure 12, described nose girder rear support leg is connected with following nose girder girder by bolt, and is provided with hingedly, can remove turnover forward behind the bolt, reduces the height of nose girder machine at any time.Joint is the sleeve fit structure up and down, can regulate height.
In Fig. 1, described nose girder front leg strut is connected with following nose girder girder by bearing pin, becomes a firm gentle duplex to connect with nose girder rear support leg is capable, and the deflection deformation of nose girder girder is at present carried in maximized adaptation.Can fold back and reduce the height of nose girder machine at any time.Joint is the sleeve fit structure up and down, can regulate height.
The beam erecting method of nose girder formula fixed point lifting bridge formation machine is as follows under the tunnel type excessively described in the utility model: the bridge formation machine enters erected state, the support cylinder 21 of the O type rear support leg 2 of erecting machine is supported on the case beam that has set up, front leg strut 3 is supported on treats frame bridge pier front portion amphi-position, the rear support leg 12 of nose girder machine is supported on the front portion of the case beam front bottom end bridge pier that has set up, front leg strut 11 is supported on treats frame bridge pier rear portion amphi-position, and auxiliary supporting leg 4 is supported on the nose girder girder 10.Beam transportation vehicle 49 is carried a load on the back the beam sheet with after the bridge formation machine docks, and it is in place by the positive walking rails feeding beam on the nose girder girder to carry the beam dolly 50 beam sheet of carrying a load on the back on the back, and hoist engine assembly 7 drives back hanging beam overhead traveling cranes 5 and preceding hanging beam overhead traveling crane 6 is transferred suspender 35 synchronously, lifting synchronously behind the tie-beam sheet.Nose girder loop wheel machine 8 and auxiliary supporting leg 4 lifting nose girder machines move about 18m that advances with it then, and the suspender 45 of nose girder overhead traveling crane 9 is transferred and connected the nose girder machine, and supporting leg was supported on next amphi-position before and after nose girder loop wheel machine and nose girder overhead traveling crane moved forward to the nose girder machine it jointly then.Before and after the hanging beam overhead traveling crane fall synchronously beam in place after, erecting machine just can walk to walk to next amphi-position by O type leg running mechanism 22 and the positive running mechanism 28 of auxiliary supporting leg, reenters erected state.
Described in the utility model cross nose girder formula fixed point lifting bridge formation machine under the tunnel type to face the tunnel beam erecting method as follows: nose girder girder front end is provided with breach, the support in the time of can adapting to the bridge tunnel and link to each other.Tunnel internal all can be goed deep in erecting machine girder front and back end, maximum has reduced to face the abutment length that tunnel sets up.After the lifting of beam sheet, nose girder loop wheel machine, nose girder overhead traveling crane, auxiliary supporting leg can be promoted to the nose girder machine on the abutment end face, and supporting leg before and after the nose girder machine shrinks is finished via hole, gets out of the way beam space.
The tunnel method of packing of nose girder formula fixed point lifting bridge formation machine is as follows under the tunnel type excessively described in the utility model:
Step 1: before and after the nose girder machine under the supporting leg folded state, auxiliary supporting leg 4 and nose girder via hole overhead traveling crane 9 retreat the nose girder machine about 6m, make by inner elevator that to hang wing 46 forwards folding.Collapsible then front leg strut rearward turns down after removing stopping means, presses close to the girder bottom surface, and fixing.It is in place that last nose girder machine continues reach 6m;
Step 2: the jacking support 51 on the Beam transportation vehicle is removed O type rear support leg lower transverse beam 17 with bridge formation machine rear end jack-up;
Step 3: after the O type rear support leg supported on both sides, the jacking support unclamps, and Beam transportation vehicle sails in the bridge formation machine ventral, and the jacking support supports the bridge formation machine again;
Step 4: after the L beam 19 of O type rear support leg was removed the bolt that is connected the position with girder and connected, unitary side was pressed close to girder and fixing to turnover forward, turn the flange bolt of beam 18 dismountings and L beam 19 then after, upwards turn down to horizontal level again, fix.The nose girder loop wheel machine is taken connecting rod 37 lower ends apart, sagging two side arms 38, reduction complete machine width.Whole folding process all is that the elevator of girder inside drives by wire rope;
Step 4: jacking support and auxiliary supporting leg synchronous make the erecting machine height be reduced to the tunnel height.The nose girder overhead traveling crane connects the nose girder machine.The Beam transportation vehicle bridge formation machine of carrying a load on the back passes through the tunnel;
Step 5: when going out the tunnel, Beam transportation vehicle with the bridge formation machine directly pack be positioned at decorating position to the nose girder machine directly over, after supporting leg recovered holding state before and after the nose girder, auxiliary supporting leg and nose girder overhead traveling crane fell the nose girder machine in place synchronously;
Step 6: Beam transportation vehicle carry on the back the beam dolly carry a load on the back the jacking support as the erecting machine traveling after point, with the common traveling of the positive running mechanism of auxiliary supporting leg, realize that the erecting machine low level goes out tunnel;
Step 7: jacking support and auxiliary supporting leg extend, and erecting machine are worked rising to the height of setting a roof beam in place, and tunnel internal can be goed deep in its rear end, and reverse repeating step three is to the process of step 1, and the complete machine of finishing the bridge formation machine resets, and just can set a roof beam in place operation.
Claims (10)
1. cross nose girder formula fixed point lifting bridge formation machine under the tunnel type for one kind, it is characterized in that: this lifting bridge formation machine comprises erecting machine and following nose girder machine; Described erecting machine comprises girder, O type rear support leg, collapsible front leg strut, auxiliary supporting leg, preceding hanging beam overhead traveling crane, back hanging beam overhead traveling crane, elevator assembly, nose girder loop wheel machine, nose girder via hole overhead traveling crane, following nose girder girder, nose girder front leg strut and nose girder rear support leg, on the bottom surface of girder front portion, be connected with collapsible front leg strut and auxiliary supporting leg, be connected with O type rear support leg in main number beam rear end; Hanging beam overhead traveling crane, back hanging beam overhead traveling crane before on girder, being equipped with, the girder middle part is equipped with the elevator assembly, and nose girder loop wheel machine and nose girder via hole overhead traveling crane are connected on the track of girder upper surface, and nose girder via hole overhead traveling crane is positioned at the front end of girder; Described nose girder machine down comprises nose girder girder nose girder front leg strut and nose girder rear support leg down, in the forward and backward end of following nose girder girder nose girder front leg strut and nose girder rear support leg is set.
2. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: described girder comprises box beam, back contact beam, middle contact beam and preceding contact beam, box beam has two, parallel placement, be vertical fish belly type, between two parallel box beam, be connected with back contact beam, middle contact beam and preceding contact beam, by three contact beams two box beam are connected, contact beam place, back girder arranged outside has the installation position of O type rear support leg, and middle contact beam inside is provided with sleeve cavity.
3. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: described O type rear support leg by lower transverse beam, turn beam, L beam, articulated mounting, support cylinder, running mechanism and form, lower transverse beam is one, respectively be linked in sequence at lower transverse beam two ends and turned beam and L beam, form positive U type structure, the opening part of two L beams all is connected with girder by bolt in the upper end, between girder, be connected with back contact beam, form O type enclosed construction, described lower transverse beam, turn beam, L beam, girder and back contact beam and be box-structure; Between L beam and girder and O type rear support leg be connected the position and be provided with articulated mounting between the beam with turning, all can fold around its upset; Two ends of described O type rear support leg lower transverse beam bottom surface respectively are connected with support cylinder and running mechanism, realize that complete machine supports and the cart traveling.
4. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: described collapsible front leg strut comprises joint on the front leg strut, middle joint, following joint and ball pivot load-bearing seat, joint is hinged by bearing pin and girder on the front leg strut, the ball pivot of connection is all arranged at middle joint and the bottom of saving down, middle joint and following joint are linked in sequence, side at middle joint and following joint is hinged, and middle joint is provided with the box sleeve, the bottom that ball pivot load-bearing seat is arranged in joint or saves down.
5. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: described auxiliary supporting leg comprises regulates inner sleeve, forward running mechanism and reverse running mechanism, regulate in the sleeve cavity of contact beam in the inner sleeve insertion, fix by bearing pin, be connected with forward running mechanism and reverse running mechanism in the bottom of regulating inner sleeve, forward running mechanism and reverse running mechanism are two covers, and symmetry is installed, and are positioned at the upper end and two sides of nose girder girder down.
6. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: described elevator assembly comprises link and elevator, it is inboard that link is connected the girder middle part, elevator has four groups and all is connected on the link, two groups of elevator co-operation wherein, two groups of elevators work alone in addition, and elevator links to each other with the fixed pulley group of forward and backward hanging beam overhead traveling crane by wire rope.
7. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: the hanging beam overhead traveling crane is identical with hanging beam sky, back bassinet structure before described, include overhead traveling crane frame, fixed pulley assembly, movable pulley assembly and suspender, the overhead traveling crane frame rides on two girders, there is the transverse hydraulic oil cylinder to be connected with the overhead traveling crane frame with vertical hydraulic jack, fixed pulley assembly is fixed on the overhead traveling crane frame, links to each other with movable pulley assembly on publishing in instalments suspender by wire rope.
8. according to claim 1ly cross nose girder formula fixed point lifting bridge formation machine under the tunnel type, it is characterized in that: described nose girder loop wheel machine comprises gantry, connecting rod, side arm, from running mechanism, lift cylinder and oil cylinder; Gantry is that " both sides are by riding over from running mechanism on two girders in the ┏ ┓ shape, gantry, and the upper end is connected with lift cylinder in gantry, and lift cylinder has four; The gantry lower end all is connected with side arm one end by articulated mounting, between the other end of side arm and gantry upper end, be connected with connecting rod by articulated mounting, on the side arm of connecting rod lower end, be connected with oil cylinder, the montant of gantry, connecting rod and side arm are formed firm triangular structure, and two side arms is hung wing by oil cylinder and nose girder and linked to each other.
9. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: described nose girder via hole overhead traveling crane comprises hangs running mechanism, fixed pulley group, running block and suspender, hang walking mechanism and have four, four are one group and are positioned on the girder bottom guide track, hanging at one group all has an elevator in the capable mechanism, each elevator all is connected with running block through the fixed pulley group by wire rope, suspender is installed on the running block, and the lifting coupling arrangement of nose girder and nose girder front leg strut is set down on the suspender;
Described nose girder girder down is the rectangle box type structure girder, establishes auxiliary supporting leg forward walking rails above, and upper side is formed another little box-structure, divides into the auxiliary reverse walking rails of supporting leg, and the rear portion is provided with the wing type and hangs wing, and the middle part is provided with the nose girder overhead traveling crane and plays the sling lifting hole(eyelet).
10. nose girder formula fixed point lifting bridge formation machine under the tunnel type excessively according to claim 1, it is characterized in that: described nose girder rear support leg is connected with following nose girder girder by bolt, and is provided with hinged; Joint is the sleeve fit structure up and down; Described nose girder front leg strut is connected with following nose girder girder by bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206876651U CN201972096U (en) | 2010-12-30 | 2010-12-30 | Cross-tunnel lower guide beam type fixed-point hoisting bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206876651U CN201972096U (en) | 2010-12-30 | 2010-12-30 | Cross-tunnel lower guide beam type fixed-point hoisting bridge girder erection machine |
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| Publication Number | Publication Date |
|---|---|
| CN201972096U true CN201972096U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206876651U Expired - Lifetime CN201972096U (en) | 2010-12-30 | 2010-12-30 | Cross-tunnel lower guide beam type fixed-point hoisting bridge girder erection machine |
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| CN (1) | CN201972096U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094394A (en) * | 2010-12-30 | 2011-06-15 | 徐州徐工铁路装备有限公司 | Through-tunnel lower pilot girder type non-moving lifting bridge girder erection machine |
| CN109083018A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of lower guide fixed-point sling erecting bridge machine is moved back with back door |
| CN109083021A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of lower guide fixed-point sling erecting bridge machine front leg strut |
| CN109083020A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of change of lower guide fixed-point sling erecting bridge machine is across method |
| CN110273369A (en) * | 2018-03-17 | 2019-09-24 | 中铁第五勘察设计院集团有限公司 | Guide girder machine with moveable front launching nose supporting leg |
-
2010
- 2010-12-30 CN CN2010206876651U patent/CN201972096U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094394A (en) * | 2010-12-30 | 2011-06-15 | 徐州徐工铁路装备有限公司 | Through-tunnel lower pilot girder type non-moving lifting bridge girder erection machine |
| CN110273369A (en) * | 2018-03-17 | 2019-09-24 | 中铁第五勘察设计院集团有限公司 | Guide girder machine with moveable front launching nose supporting leg |
| CN110273369B (en) * | 2018-03-17 | 2024-04-30 | 中铁第五勘察设计院集团有限公司 | Beam machine with movable front beam leg |
| CN109083018A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of lower guide fixed-point sling erecting bridge machine is moved back with back door |
| CN109083021A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of lower guide fixed-point sling erecting bridge machine front leg strut |
| CN109083020A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of change of lower guide fixed-point sling erecting bridge machine is across method |
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