CN115450120A - Long-span walking type steel box girder pushing construction equipment - Google Patents

Abstract

The application relates to a long-span walking steel box girder incremental launching construction equipment, which relates to the field of bridge construction. The lifting seat comprises a lifting seat, a jack and a limiting seat, wherein the limiting seat is provided with a plurality of on a support, the lifting seat is vertically arranged on the support in a sliding manner, the limiting seat is used for supporting the lifting seat, the jack is arranged on the lifting seat, a fixing device used for fixing the jack is arranged on the lifting seat, a driving device used for driving the lifting seat to lift is arranged on the support, and a control device used for controlling the limiting seat to move is arranged on the support. The jack mounting and dismounting device has the function of solving the problem that an operator is inconvenient to mount and dismount the jack in the high altitude.

Description

Long-span walking type steel box girder pushing construction equipment

Technical Field

The application relates to the field of bridge construction, in particular to long-span walking type steel box girder pushing construction equipment.

Background

In the construction of a large-span bridge, in order to shorten the construction period and avoid affecting the traffic conditions such as the hydrological environment, shipping conditions and the like, bridge pushing equipment is generally adopted for construction, and at present, two types of equipment are mainly used for bridge pushing. One is a mode of adopting steel strands to disperse and draw, and the other is a mode of adopting a hydraulic oil cylinder to carry out jacking and horizontal pushing.

The method for pushing the bridge through the hydraulic oil cylinder is a construction method that a temporary support is erected on the periphery of a construction site, the erected temporary support is used for splicing the bridge to be constructed, then a dragging device is used for dragging the spliced bridge in place, and finally a vertical jack is used for dropping the bridge, so that the bridge is lapped on a formal support on a formal pier.

In view of the above related technologies, the inventor finds that the vertical jack for jacking the bridge is large in size and weight, an operator needs to carry the vertical jack to the support and then install the vertical jack, and needs to disassemble the vertical jack after the bridge falls, and since the height of the support is usually high, great inconvenience is brought to the installation and the disassembly of the vertical jack in high-altitude operation.

Disclosure of Invention

In order to realize solving the purpose that the operator inconveniently installs and demolish the jack problem in the high altitude, this application provides a long-span walking steel box girder top pushes away construction equipment.

The application provides a pair of large-span walking steel box girder top pushes away construction equipment adopts following technical scheme:

the utility model provides a long-span walking steel box girder top pushes away construction equipment, includes lift seat, jack and spacing seat, spacing seat is provided with a plurality of on the support, the vertical setting that slides of lift seat is on the support, just spacing seat is used for supporting the lift seat, the jack sets up on the lift seat, be provided with the fixing device who is used for fixed jack on the lift seat, be provided with the drive arrangement who is used for driving the lift seat to go up and down on the support, be provided with the controlling means who opens or folds with the spacing seat of control on the support.

By adopting the technical scheme, when an operator needs to drop the bridge, the operator firstly places the jack on the lifting seat, fixedly connects the jack on the lifting seat through the fixing device, then drives the lifting seat to be lifted to the position, close to the top, of the support through the driving device, the initial state of the limiting seat is an opening state, and the operator drives the limiting seats to mutually approach through the control assembly to form a supporting platform for supporting the lifting seat, so that the jack can conveniently lift the bridge; after the beam falling is completed, an operator controls each limiting seat to be opened through the control device, the supporting effect of the limiting seats on the limiting seats is removed, then the jack is controlled to fall through the driving device, and finally the operator removes the limiting effect of the fixing device on the jack, so that the jack is detached. Because the jack has larger mass, the inconvenience of operators in the process of installing and dismantling the jack at high altitude can be reduced by the mode.

Optionally, the control device comprises a turnover rod and a connecting rod, the turnover rod corresponds to the limiting seat one by one, one end of the turnover rod is fixedly connected to the limiting seat, the other end of the turnover rod is hinged to the support, the connecting rod corresponds to the turnover rod one by one, the connecting rod is hinged to the turnover rod, a sliding seat is hinged to the connecting rod, the sliding seat slides along the vertical direction and is arranged on the support, and a control assembly for controlling the position of the sliding seat is arranged on the support.

Through adopting above-mentioned technical scheme, the operator drives the connecting rod rebound through promoting each slide rebound, and the connecting rod shifts up then promotes the upset pole and upwards overturns. When each slide all moves down, each connecting rod also moves down along with the corresponding slide to drive each upset pole to overturn downwards, make each spacing seat be close to each other and form a supporting platform, be used for supporting the seat that goes up and down. The control assembly controls the position of the rod sliding seat so as to control the limiting seats to be mutually opened or closed.

Optionally, the control assembly is including removing axle and limiting plate, it sets up on the slide to remove the axle, limiting plate fixed connection is on the support, be provided with the shifting chute on the extension board, it is located the shifting chute to remove axle one end, be provided with on the limiting plate and be used for carrying out spacing first stopper to removing the axle, first stopper rotates and connects on the limiting plate, first stopper below fixedly connected with baffle, just first stopper butt is on the baffle, equal fixedly connected with branch, two on first stopper and the limiting plate connect through the extension spring between the branch.

By adopting the technical scheme, an operator pushes each sliding seat to move upwards so as to drive each moving shaft to move upwards along the moving groove, when the moving shaft is abutted against the first limiting block, the moving shaft continues to move upwards so as to drive the corresponding first limiting block to turn upwards, and the elastic action of the tension spring needs to be overcome in the process; when the movable shaft passes through the first limiting block, acting force on the first limiting block is removed, and the first limiting block is reset under the action of the elastic force of the tension spring, so that the first limiting block is overlapped on the baffle again; and the operator releases the upward thrust on each sliding seat at the moment, so that each sliding seat moves downwards under the action of gravity until the moving shaft is lapped on the first limiting block, and each limiting seat is in an open state at the moment.

Optionally, an extension plate is fixedly connected to the slide, a sliding groove is formed in the extension plate, a sliding block is connected to the sliding groove in a sliding manner, the moving shaft is fixedly connected to the sliding block, a first lug plate is fixedly connected to the sliding block, a second lug plate is fixedly connected to one end, away from the slide, of the extension plate, a guide rod is fixedly connected to the first lug plate, the guide rod slides to penetrate through the second lug plate, a reset spring is sleeved on the guide rod between the first lug plate and the second lug plate, and the reset spring is in a compressed state.

Through adopting above-mentioned technical scheme, the guide bar plays the guide effect to reset spring, reduces the crooked condition of reset spring, exerts thrust through reset spring to first otic placode for the slider remains throughout towards the trend of keeping away from the removal of second otic placode direction, thereby makes the removal axle keep towards the trend of keeping away from the removal of second otic placode direction.

Optionally, the guide way has been seted up on the limiting plate, the guide way is located the upper end of shifting chute, the guide way is close to the one end and the shifting chute intercommunication of slide, the downward sloping of the other end of guide way, the guiding groove has still been seted up on the limiting plate, guiding groove upper end and guide way intercommunication, the guiding groove lower extreme towards the shifting chute slope and with shifting chute bottom intercommunication, the holding tank has been seted up on the limiting plate, it is provided with the second stopper to slide in the holding tank, the upper surface of second stopper flushes with the lower cell wall of guide way, the one end that the spout was kept away from to the second stopper is provided with first top and pushes away the spring, the one end fixed connection that the second stopper was kept away from to first top pushes away the spring is on the cell wall of holding tank.

By adopting the technical scheme, when an operator needs to control the limit seats to be mutually closed, the operator needs to upwards push the slide seats, so that the moving shaft is abutted against the second limit block, then the operator continues to control the slide seats to upwards move, further the corresponding moving shaft is pushed to upwards move, the second limit block overcomes the elastic action of the first pushing spring under the action of the moving shaft and retracts into the accommodating groove, when the moving shaft passes through the second limit block, the acting force on the second limit block is relieved, the second limit block resets under the elastic action of the first pushing spring and seals the upper end of the moving groove, at the moment, the operator relieves the upwards pushing force on the slide seats, the moving rod downwards moves along the guide groove under the gravity action of the corresponding slide seat, the reset spring is gradually compressed in the process, when the moving rod moves to the guide groove, the moving rod downwards moves under the gravity action of the slide seat and the elastic action of the first pushing spring, the moving rod moves to the lower end of the moving groove, and the limit seats are mutually closed at the moment and used for supporting the lifting seat.

Optionally, the lifting seat is provided with a plurality of abdicating grooves, the abdicating grooves correspond to the limiting seats one by one, the limiting seats are located in the abdicating grooves, the limiting seats are fixedly connected with a plurality of rib plates, and the rib plates are located in the abdicating grooves and butt against the corresponding limiting seats.

By adopting the technical scheme, when the limit seats are closed, the limit seats are inserted into the corresponding abdicating grooves, the limit seats are positioned on the lower groove walls of the corresponding abdicating grooves, the operator controls the limit seats to move downwards to enable the limit seats to be abutted against the upper groove walls of the corresponding abdicating grooves, and the rib plates are abutted against the corresponding limit seats to achieve a limit effect on the limit seats, so that the stability of the lifting seat on the limit seats is improved.

Optionally, fixing device is including articulated seat, backup pad and fixed plate, articulated seat is provided with a plurality of on spacing seat, backup pad and articulated seat one-to-one, just the backup pad articulates on the articulated seat that corresponds, fixed plate fixed connection is in the backup pad, the fixed plate butt is on the periphery of jack, be provided with a plurality of fixed subassemblies that are used for carrying on spacingly to the fixed plate on the jack, just fixed subassembly sets up with the fixed plate interval.

Through adopting above-mentioned technical scheme, when the operator installed the jack on the seat that goes up and down, the operator was with each backup pad orientation jack direction upset for each fixed plate all butts on the jack, then the operator passes through the reverse upset of each fixed plate of fixed subassembly restriction, and then the realization is fixed the position of jack.

Optionally, the fixing assembly includes a base and two limiting fixture blocks, the base is provided with two elongated slots, the limiting fixture blocks are in one-to-one correspondence with the elongated slots, the limiting fixture blocks are slidably disposed in the corresponding elongated slots, the two limiting fixture blocks are symmetrically disposed on two sides of the fixing plate along the height direction, the two limiting fixture blocks are provided with clamping grooves, and the fixing plate corresponding to the limiting fixture blocks is clamped in the clamping grooves of the limiting fixture blocks.

Through adopting above-mentioned technical scheme, each backup pad of operator upset for the fixed plate overlap joint is on the jack, then the operator removes spacing fixture block, makes the fixed plate joint that corresponds in the draw-in groove of spacing fixture block, thereby the reverse upset of restriction fixed plate makes each fixed plate keep supporting the state of tight jack through this mode, thereby realizes the rigidity to the jack.

Optionally, fixedly connected with horizontal pole on the base, the cover is established to the cover on the horizontal pole, it has two gangbars to articulate on the sleeve, gangbar and spacing fixture block one-to-one, just the gangbar articulates on the spacing fixture block that corresponds, the first bulge loop of fixedly connected with on the sleeve, fixedly connected with second bulge loop on the horizontal pole, just the horizontal pole first bulge loop with the cover is equipped with the second and pushes away the spring between the second bulge loop, the second pushes away spring one end butt on first bulge loop, the second pushes away the other end butt of spring on the second bulge loop, the sleeve is kept away from the one end that the second pushed away the spring and is provided with the nut, and nut threaded connection is on the horizontal pole, and nut and sleeve butt.

Through adopting above-mentioned technical scheme, when the operator need prescribe a limit to the position of each fixed plate, the operator need unscrew the nut, make the sleeve remove towards keeping away from the base direction under the effect that the second pushed away the spring, thereby make two spacing fixture blocks on same base be close to each other, and then make the fixed plate upset of two spacing fixture block restriction both sides, thereby the realization is prescribed a limit to the position of two fixed plates, the operator realizes prescribing a limit to the position of each fixed plate through this mode, and then the realization is prescribed a limit to the jack position. When the operator needs to remove the position fixing to the jack, the operator needs to screw down the nut, makes the sleeve remove towards the base direction that corresponds, makes two spacing cassettes on same base keep away from each other, removes the spacing effect of spacing fixture block to the fixed plate, through screwing up each nut, removes the position of each fixed plate and prescribes a limit to, and the operator makes things convenient for the operator to pull down the jack with each fixed plate upset towards keeping away from the jack direction at last.

Optionally, the driving device comprises a guide seat, a fixing rod, a pulley and a winch, the fixing rod is provided with a plurality of parts on the lifting seat, the guide seat corresponds to the fixing rod one by one, the guide seat is fixedly connected to the corresponding fixing rod and is arranged on the support in a sliding mode in the vertical direction, the pulley is rotatably connected to the support, the winch is fixedly connected to the position, close to the lower portion, of the support, a stay rope is wound on the pulley, one end of the stay rope is fixedly connected to the lifting seat, and the other end of the stay rope is connected with the winch.

Through adopting above-mentioned technical scheme, the operator receive and releases the cable through the hoist engine to the pulling lift seat reciprocates, and this in-process guide holder plays the guide effect, reduces the condition that the lift seat goes up and down and the in-process appears rocking.

In summary, the present application includes at least one of the following beneficial technical effects:

1. an operator installs the jack on the lifting seat through the fixing device, then drives the lifting seat to lift and move the height through the winch, and finally drives the limit seats to be folded through the control device so as to support the lifting seat, so that the mode is convenient for the operator to install the jack on the support;

2. after the completion falls the roof beam, the operator drives each spacing seat alternate segregation through controlling means, removes the supporting role to the seat that goes up and down, then the operator drives the seat that goes up and down through drive arrangement and descends, goes up and down the seat to make things convenient for manual operation's height back, and the operator is through removing the limiting displacement of fixing device to the jack to made things convenient for the operator to dismantle the jack from the support.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying the base shaft in the embodiment of the present application.

Fig. 3 is a schematic structural diagram for embodying the limiting seat in the embodiment of the present application.

Fig. 4 is a schematic structural diagram for embodying the lifting base in the embodiment of the present application.

Fig. 5 is a schematic structural diagram of the turnover rod after being turned downwards according to the embodiment of the application.

Fig. 6 is an exploded view of the embodiment of the present application after being flipped up.

Fig. 7 is a schematic structural diagram for embodying a limiting plate in the embodiment of the present application.

Fig. 8 is an enlarged schematic view of a portion a in fig. 4.

Description of reference numerals: 1. a lifting seat; 111. a yielding groove; 112. a rib plate; 12. a jack; 13. a limiting seat; 14. a fixing device; 15. a drive device; 16. a control device; 17. a base shaft; 18. a support; 2. a turning rod; 21. a connecting rod; 22. a slide base; 3. a control component; 31. a movable shaft; 32. a limiting plate; 33. a moving groove; 34. a first stopper; 35. a baffle plate; 36. a strut; 37. a tension spring; 38. a rotating shaft; 4. a guide groove; 41. a guide groove; 42. accommodating a tank; 43. a second limiting block; 44. a first pushing spring; 45. a guide post; 5. a support plate; 51. a chute; 52. a slider; 53. a first ear plate; 54. a second ear plate; 55. a guide rod; 56. a return spring; 6. a hinged seat; 61. a support plate; 62. a fixing plate; 63. a fixing assembly; 64. a limiting ring; 65. a base; 66. a limiting clamping block; 67. a long groove; 68. a card slot; 7. a cross bar; 71. a sleeve; 72. a linkage rod; 73. a first convex ring; 74. a second convex ring; 75. a second pushing spring; 76. a nut; 8. a winch; 81. a guide seat; 82. a pulley; 83. a fixing rod; 84. a cable; 85. a slide rail.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses large-span walking steel box girder top pushes away construction equipment. As shown in fig. 1, 2 and 3, the span walking steel box girder incremental launching construction equipment comprises four limiting seats 13, the four limiting seats 13 are arranged on a support 18, the support 18 comprises eight vertically arranged main rods, the eight main rods are arranged in a 2 × 4 matrix, the two adjacent main rods are fixedly connected through a plurality of auxiliary rods, the four main rods positioned in the middle are marked as base rods 17, and the limiting seats 13 are in one-to-one correspondence with the base rods 17. A control device 16 is arranged between each base rod 17 and the limiting seats 13, and an operator controls the four limiting seats 13 to approach or depart from each other through the control device 16.

As shown in fig. 3 and 4, a cylindrical elevating base 1 is provided between the respective base rods 17, and the elevating base 1 is moved in a vertical direction by a driving device 15. The yielding groove 111 is formed in the position, corresponding to each limiting seat 13, of the lifting seat 1, the limiting seats 13 are located in the corresponding yielding grooves 111, and the limiting seats 13 are abutted to the upper groove wall and the two groove side walls of the corresponding yielding grooves 111 at the same time. Rib plates 112 are vertically and fixedly connected to two side walls of the abdicating groove 111, the two rib plates 112 are used for being abutted against one side of the limiting seat 13 close to the corresponding base rod 17, and the distance between the lower ends of the two rib plates 112 and the lower groove wall of the abdicating groove 111 is larger than the height of the limiting seat 13. The upper surface of the lifting seat 1 is provided with a jack 12, and the lifting seat 1 is fixedly connected with the jack 12 through a fixing device 14.

As shown in fig. 1 and 2, the driving device 15 includes four fixing rods 83 disposed on the lower surface of the lifting seat 1, the upper ends of the four fixing rods 83 are fixedly connected to the lower surface of the lifting seat 1, the lower ends of the fixing rods 83 are fixedly connected with guide seats 81, the guide seats 81 are in one-to-one correspondence with the base rods 17, each base rod 17 is fixedly connected with a slide rail 85, the guide seats 81 are slidably disposed on the corresponding slide rails 85, and the movement of the lifting seat 1 is guided by the guide seats 81. Wherein, a pulley 82 is rotatably connected between two adjacent base rods 17, the pulley 82 is positioned at the position of the bracket 18 close to the upper end, a pull cable 84 is wound on the pulley 82, one end of the pull cable 84 is fixedly connected on the side wall of the lifting seat 1, and the other end of the pull cable 84 is provided with a windlass 8. Hoist 8 fixed connection is in one side of support 18, and hoist 8 sets up in the position that support 18 is close to the lower extreme, and the cable 84 is around establishing on the wind-up roll of hoist 8, and the operator is through the drive hoist 8 wind cable 84 then drive lift seat 1 rebound, and the operator unreels cable 84 then drives lift seat 1 through drive hoist 8 and descends.

As shown in fig. 3 and 5, the control device 16 includes turning rods 2 disposed on the base rods 17, the turning rods 2 are in one-to-one correspondence with the limiting seats 13, one end of each turning rod 2 is hinged to the corresponding base rod 17, and the other end of each turning rod 2 is fixedly connected to the corresponding limiting seat 13. A connecting rod 21 is arranged below each turnover rod 2, one end of each connecting rod 21 is hinged to the turnover rod 2, the other end of each connecting rod 21 is hinged to a sliding seat 22, the sliding seats 22 correspond to the sliding rails 85 one by one, the sliding seats 22 are connected to the corresponding sliding rails 85 in a sliding mode, and the sliding seats 22 are located above the guide seats 81. Each base rod 17 is provided with a control component 3 for controlling the position of the sliding seat 22, the control component 3 comprises a rectangular support plate 5 fixedly connected to one side of the sliding seat 22, the length direction of the support plate 5 is perpendicular to the moving direction of the corresponding sliding seat 22, the support plate 5 is provided with a sliding groove 51, and the length direction of the sliding groove 51 is parallel to the length direction of the support plate 5. A sliding block 52 is arranged in the sliding groove 51 in a sliding manner along the length direction of the sliding block, a first lug plate 53 is fixedly connected to one side of the sliding block 52 facing the central axis of the jack 12, a second lug plate 54 is fixedly connected to one side of the support plate 5 facing the central axis of the jack 12, the second lug plate 54 is located at one end, far away from the corresponding sliding seat 22, of the support plate 5, and the first lug plate 53 and the second lug plate 54 are parallel to each other. A guide rod 55 is fixedly connected to one side of the first ear plate 53 facing the second ear plate 54, the axial direction of the guide rod 55 is parallel to the length direction of the support plate 5, a first pushing spring 44 is sleeved on the guide rod 55, one end of the first pushing spring 44 abuts against the first ear plate 53, the other end of the first pushing spring 44 abuts against the second ear plate 54, and the first pushing spring 44 is always in a compressed state. The side of the slide block 52 far away from the first ear plate 53 is fixedly connected with a moving shaft 31, and the moving shaft 31 is perpendicular to the support plate 5.

As shown in fig. 5, 6 and 7, a limiting plate 32 is vertically and fixedly connected to the base rod 17 corresponding to the sliding seat 22, the limiting plate 32 is parallel to the supporting plate 5, the limiting plate 32 is located on one side of the supporting plate 5 away from the second ear plate 54, a moving groove 33 is vertically formed in one side of the limiting plate 32 facing the supporting plate 5, and one end of the moving shaft 31 away from the sliding block 52 is slidably disposed in the moving groove 33 along the vertical direction. The limiting plate 32 is fixedly connected with a rotating shaft 38 towards one side of the supporting plate 5, the rotating shaft 38 is rotatably connected with a first limiting block 34, and the first limiting block 34 is positioned between the upper end of the moving groove 33 and the middle position of the moving groove 33. The baffle 35 is arranged below the first limiting block 34, the baffle 35 is fixedly connected to the limiting plate 32, and when the lower surface of the first limiting block 34 abuts against the baffle 35, the first limiting block 34 is in a horizontal state. One side fixedly connected with branch 36 that limiting plate 32 was kept away from to first stopper 34, also fixedly connected with branch 36 on the limiting plate 32, branch 36 on the limiting plate 32 is located the below of baffle 35, and connects through extension spring 37 between two branch 36, and extension spring 37 is in all the time by tensile state.

The limiting plate 32 is further provided with a guide groove 4 on one side facing the supporting plate 5, one end, close to the corresponding base rod 17, of the guide groove 4 is communicated with the moving groove 33, the guide groove 4 is obliquely arranged, and one end, far away from the moving groove 33, of the guide groove 4 inclines downwards. The second limiting block 43 is arranged at the top end of the moving groove 33, the second limiting block 43 is partially located in the moving groove 33, the second limiting block 43 is arranged obliquely, the inclination angle of the second limiting block 43 is the same as that of the guide groove 4, and the upper surface of the second limiting block 43 is flush with the lower groove wall of the guide groove 4. The position of the limiting plate 32 corresponding to the second limiting block 43 is provided with a holding groove 42, the second limiting block 43 slides along the length direction of the guide groove 4 and is arranged in the holding groove 42, a through hole is formed in the second limiting block 43, a guide pillar 45 is slidably arranged in the through hole, the axis direction of the guide pillar 45 is parallel to the sliding direction of the second limiting block 43 in the holding groove 42, one end of the guide pillar 45, which is far away from the moving groove 33, is fixedly connected to the groove wall of the holding groove 42, and the guide pillar 45 is located in the holding groove 42. The cover is equipped with reset spring 56 on guide pillar 45, and reset spring 56 one end fixed connection is on second stopper 43, and reset spring 56's the other end fixed connection is on the cell wall of holding tank 42, and reset spring 56 is in the compressed state all the time.

Limiting plate 32 has still seted up guiding groove 41 towards one side of extension board 5, and the vertical setting in guiding groove 41 upper segment, and the one end intercommunication that the shifting chute 33 is kept away from to guiding groove 4 upper end and guiding groove 41, and guiding groove 41 lower segment is the arc, and guiding groove 41 lower extreme towards shifting chute 33 direction slope and with the bottom intercommunication of shifting chute 33.

The initial state of each turning rod 2 is an open state, the gap between each limiting seat 13 in the open state can be passed by the lifting seat 1, each turning rod 2 in the open state tends to be vertical, so that each limiting seat 13 is separated from each other, and at the moment, the corresponding moving shaft 31 on each sliding seat 22 abuts against the upper surface of the corresponding first limiting block 34. After the lifting seat 1 moves upwards to a certain height under the action of the winch 8, an operator needs to fold the limiting seat 13, so that the limiting seat 13 is inserted into the corresponding abdicating groove 111 to support the lifting seat 1.

The operator starts the hoist 8 and winds up the cable 84 to lift the lifting seat 1, when the lifting seat 1 is lifted to the abutting joint of the guide seat 81 and the slide seat 22, the hoist 8 continues to drive the lifting seat 1 to move upwards, the guide seat 81 pushes the corresponding slide seat 22 to move upwards, the slide seat 22 moves upwards in the process and drives the corresponding moving shaft 31 to move upwards, the moving shaft 31 firstly abuts against the second limiting block 43 in the upward moving process, and the moving shaft 31 continues to move upwards and pushes the second limiting block 43 to overcome the elastic action of the reset spring 56 to retract into the corresponding accommodating groove 42. When the moving shaft 31 moves up to pass over the second stopper 43, the moving shaft 31 does not apply a force to the second stopper 43, and the second stopper 43 is restored by the elastic force of the return spring 56 to be re-blocked at the top end of the moving groove 33. An operator controls the winch 8 to unreel the inhaul cable 84, so that the lifting seat 1 descends by a certain height, each guide seat 81 moves downwards, the acting force on each sliding seat 22 is relieved, the moving shaft 31 tends to move downwards under the action of the gravity of the limiting seat 13 and the sliding seat 22, the moving shaft 31 is firstly lapped on the upper surface of the second limiting block 43 and then moves towards the direction away from the moving groove 33 along the guide groove 4, and the moving shaft 31 overcomes the elastic action of the first pushing spring 44 and moves towards the direction of the second lug plate 54. During the process that the moving shaft 31 moves in the guide groove 4, and the moving shaft 31 moves downwards to drive the sliding seat 22 to move downwards, the sliding seat 22 moves downwards to drive the connecting rod 21 to move downwards, and further drive the turning rod 2 to turn downwards, so that the limiting seat 13 moves towards the axial direction of the jack 12.

When the moving shaft 31 moves to the end of the guide slot 4 far from the moving slot 33, the moving shaft 31 enters the guide slot 41, the moving shaft 31 moves downward continuously under the action of gravity, when the moving shaft 31 enters the lower half of the guide slot 41, the moving shaft 31 moves away from the second lug plate 54, and when the moving shaft 31 moves to the bottom end of the guide slot 41, the moving shaft 31 returns to the bottom end of the moving slot 33. In the moving process of the moving shaft 31 in the guide groove 41, the slide seat 22 continuously moves downwards, so that the turning rod 2 drives the limit seats 13 to move towards the corresponding abdicating groove 111, when the moving shaft 31 moves to the bottom end of the moving groove 33, the turning rod 2 stops turning, at this time, the upper surfaces of the limit seats 13 are all in a horizontal state, each limit seat 13 is abutted against the groove side wall of the corresponding abdicating groove 111, the operator unreels the guy cable 84 with a certain length through the winch 8, and drives the lifting seat 1 to move downwards under the self gravity, so that the upper surface of each limit seat 13 is abutted against the groove top wall of the corresponding abdicating groove 111, at this time, the rib plate 112 is abutted against one side of the corresponding abdicating groove 111 close to the turning rod 2, so as to limit the limit seats 13, at this time, the jack 12 is supported by the four base rods 17, and the stability of the jack 12 in the working process is ensured.

When an operator needs to remove the supporting effect of the limiting seat 13 on the lifting seat 1, the operator needs to start the winch 8 to wind the inhaul cable 84 to drive the lifting seat 1 to move upwards until the limiting seat 13 abuts against the bottom wall of the abdicating groove 111, so that the rib plate 112 is separated from the corresponding limiting seat 13, the limiting effect of the rib plate 112 on the limiting seat 13 is removed, and finally, the limiting seats 13 need to be controlled to be away from each other, and the supporting effect on the lifting seat 1 is removed. To realize keeping away from each other by each spacing seat 13, the operator need continue to start hoist engine 8 rolling cable 84, make the lifting seat 1 go up to move, thereby the guide holder 81 shifts up and applys ascending thrust to each slide 22, drive slide 22 and move up, slide 22 shifts up then drives removal axle 31 rebound, when removal axle 31 moves to the lower surface butt with first stopper 34, slide 22 continues to drive removal axle 31 rebound, thereby promote the first stopper 34 and overcome the spring action upset of extension spring 37. In the process of moving the moving shaft 31 upwards, the slide 22 moves upwards to drive each connecting rod 21 to move upwards, and the connecting rods 21 move upwards to drive the turnover plate to turn upwards, so that each limiting seat 13 turns upwards along with the corresponding turnover rod 2, and the limiting seats 13 are separated from each other. When the moving shaft 31 moves upwards to pass through the first limit block 34, the first limit block 34 is reset under the action of the elastic force of the tension spring 37, at this time, an operator starts the winch 8 to unreel the cable 84, so that the lifting seat 1 descends, each guide seat 81 moves downwards to release the upward pushing force on the sliding seat 22, the moving shaft 31 is overlapped on the upper surface of the first limit block 34 under the action of gravity to limit the downward movement of the moving shaft 31, further limit the downward movement of the sliding seat 22, and limit the downward overturning of the overturning rod 2, so that each limit seat 13 keeps a mutually separated state. Hoist engine 8 continuously unreels cable 84 for lift seat 1 drives jack 12 and continues to descend, and when making things convenient for the operator to dismantle jack 12, the operator stops hoist engine 8, makes lift seat 1 keep being in the low latitude state, makes things convenient for the operator to dismantle jack 12.

As shown in fig. 4 and 8, the fixing device 14 includes a limiting ring 64 fixedly connected to the upper surface of the lifting seat 1, the limiting ring 64 is coaxially disposed with the lifting seat 1, the jack 12 is located in the limiting ring 64 and abuts against the inner circumferential surface of the limiting ring 64, and the limiting ring 64 has a positioning effect on the jack 12. Fixing device 14 is still including setting up four articulated seats 6 at lift seat 1 upper surface, articulated seat 6 is located the position that lift seat 1 upper surface is close to the edge, and four articulated seats 6 evenly set up along the circumferencial direction of lift seat 1, all be provided with backup pad 61 on each articulated seat 6, the one end of backup pad 61 is articulated with articulated seat 6 that corresponds, the convex fixed plate 62 of other end fixedly connected with of backup pad 61, when backup pad 61 overturns to fixed plate 62 and jack 12 butt, the inner arc face of fixed plate 62 and the laminating of the outer peripheral face of jack 12.

Four fixing assemblies 63 for fixing the position of the limiting plate 32 are arranged on the circumferential surface of the jack 12, the four fixing assemblies 63 are uniformly arranged along the circumferential surface of the jack 12, and the fixing assemblies 63 and the fixing plate 62 are arranged at intervals. The fixing assembly 63 includes a rectangular base 65 fixedly connected to the outer circumferential surface of the jack 12, the length direction of the base 65 is parallel to the axial direction of the jack 12, and the base 65 is located between two adjacent fixing plates 62. Fixing plates 62 extend out of the upper end and the lower end of the base 65, elongated slots 67 are formed in the upper end and the lower end of the base 65, the length directions of the two elongated slots 67 are parallel to the length direction of the base 65, rectangular limiting clamping blocks 66 are slidably arranged in the two elongated slots 67, and when the two limiting clamping blocks 66 are far away from each other, two adjacent fixing plates 62 are located between the two limiting clamping blocks 66. Two ends of the two limiting clamping blocks 66 extend towards the direction away from the base 65, two clamping grooves 68 for butting the clamping fixing plate 62 are formed in the opposite surfaces of the two limiting clamping blocks 66, the two clamping grooves 68 located on the same limiting clamping block 66 are symmetrically arranged at the two ends of the limiting clamping block 66 in the length direction, and one side, facing the jack 12, of the two clamping grooves 68 is opened. When the two limiting blocks 66 move towards each other, the two fixing plates 62 adjacent to the base 65 are gradually embedded in the corresponding slots 68, so as to limit the turning of the fixing plates 62 away from the jack 12.

One side of the base 65 far away from the jack 12 is horizontally and fixedly connected with a cylindrical cross rod 7, the cross rod 7 is arranged along the radial direction of the circumferential surface of the jack 12, a sleeve 71 is sleeved on the cross rod 7, two linkage rods 72 are hinged on the sleeve 71, and the two linkage rods 72 are symmetrically arranged on two sides of the central axis of the sleeve 71. The linkage rods 72 correspond to the limiting clamping blocks 66 one by one, one end of each linkage rod 72, which is far away from the sleeve 71, is hinged to the corresponding limiting clamping block 66, and the sleeve 71 slides on the cross bar 7 to drive the two limiting clamping blocks 66 to approach or separate from each other. A first protruding ring 73 is coaxially and fixedly connected to the outer circumferential surface of the sleeve 71, and the first protruding ring 73 is located at one end of the sleeve 71 facing the base 65. One end of the cross rod 7 facing the base 65 is coaxially and fixedly connected with a second convex ring 74, the outer diameter of the second convex ring 74 is the same as that of the first convex ring 73, a second pushing spring 75 is sleeved between the first convex ring 73 and the second convex ring 74 of the cross rod 7, one end of the second pushing spring 75 abuts against the first convex ring 73, the other end of the second pushing spring 75 abuts against the second convex ring 74, and the second pushing spring 75 is always in a compressed state. The cross bar 7 is connected with a nut 76 at one end of the sleeve 71 far away from the second pushing spring 75 in a threaded mode, and the nut 76 abuts against the sleeve 71.

Before an operator installs the jack 12, the operator firstly dials each support plate 61 on the lifting seat 1 towards the direction away from the limit ring 64, then tightens each nut 76 on the jack 12, so that the two limit blocks 66 on the same base 65 are far away from each other to abut against the groove wall of the corresponding long groove 67, and the preparation before the installation of the jack 12 is completed. When installing the base jack 12, the operator places the jack 12 in the retainer ring 64, and the retainer ring 64 retains the jack 12. Then, the operator turns each stopper 13 toward the jack 12 so that each fixing plate 62 abuts on the outer peripheral wall of the jack 12, and the base 65 on the jack 12 is spaced from the fixing plate 62. The operator unscrews the nuts 76 one by one, so that the sleeve 71 moves away from the corresponding base 65 under the elastic force action of the second pushing spring 75 until the fixing plates 62 on the two sides of the base 65 are clamped in the clamping grooves 68 of the two limiting clamping blocks 66, the position limitation of the two fixing plates 62 is realized, and the operator unscrews the nuts 76, realizes the position limitation of the fixing plates 62, and further realizes the position fixation of the jack 12. In addition, two limiting clamping blocks 66 are arranged on each base 65, and limit the upper side and the lower side of the fixing plate 62 at the same time, so that the height position of the jack 12 is limited. The stability of fixing the jack 12 is further improved, the possibility that the jack 12 shakes and deflects in the lifting and working processes is reduced, and the use safety of the jack 12 is improved.

When an operator needs to disassemble the jack 12, the operator screws up the nuts 76, the sleeve 71 overcomes the elasticity of the spring and moves towards the direction corresponding to the base 65, the sleeve 71 moves towards the base 65 to increase the included angle between the two linkage rods 72, and then the two limiting clamping blocks 66 are driven to be away from each other, so that the fixing plate 62 is separated from the clamping groove 68, the limiting effect of the limiting clamping blocks 66 on the fixing plate 62 is relieved, the operator screws up the nuts 76 in sequence, the position limitation on the fixing plates 62 is relieved, finally, the operator turns the fixing plates 62 outwards, the limiting effect on the jack 12 is relieved, and the operator can take the jack 12 out conveniently.

The implementation principle of the embodiment of the application is as follows: the operator passes through fixed plate 62 and fixed subassembly 63 cooperation with jack 12 fixed connection on lift seat 1, then the operator drives jack 12 through hoist engine 8 control elevating platform and goes up and down, and it makes each spacing seat 13 overturn downwards along with upset pole 2 to trigger control assembly 3 after the elevating platform rises to a take the altitude, and plug connects in the groove 111 of stepping down of elevating platform for support the elevating platform, improve the supporting effect to jack 12.

When the operator needs to dismantle jack 12, the operator passes through hoist 8 rolling cable 84, drive lift seat 1 and rise one section distance, trigger control assembly 3 once more, make spacing seat 13 upwards overturn along with trip bar 2, remove the supporting effect to lift seat 1, then the operator is through unreeling cable 84, drive lift seat 1 and descend, it descends to the height that makes things convenient for the staff to operate until jack 12, the operator passes through the spacing effect of fixed subassembly 63 to fixed plate 62, then overturn fixed plate 62 towards keeping away from jack 12 direction, remove the spacing effect to jack 12, make things convenient for the operator to demolish jack 12.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a long-span walking steel box girder top pushes away construction equipment which characterized in that: including lift seat (1), jack (12) and spacing seat (13), spacing seat (13) are provided with a plurality of on support (18), lift seat (1) vertical setting of sliding is on support (18), just spacing seat (13) are used for supporting lift seat (1), jack (12) set up on lift seat (1), be provided with fixing device (14) that are used for fixed jack (12) on lift seat (1), be provided with drive arrangement (15) that are used for driving lift seat (1) to go up and down on support (18), be provided with controlling means (16) that open or fold with spacing seat (13) of control on support (18).

2. The long-span walking-type steel box girder pushing construction equipment of claim 1, wherein: controlling means (16) are including upset pole (2) and connecting rod (21), upset pole (2) and spacing seat (13) one-to-one, upset pole (2) one end fixed connection is on spacing seat (13), the other end of upset pole (2) articulates on support (18), connecting rod (21) and upset pole (2) one-to-one, just connecting rod (21) articulate on upset pole (2), all articulate on connecting rod (21) and have slide (22), slide (22) slide along vertical direction and set up on support (18), be provided with control assembly (3) that are used for controlling slide (22) position on support (18).

3. The long-span walking-type steel box girder incremental launching construction equipment as claimed in claim 2, wherein: control assembly (3) is including removing axle (31) and limiting plate (32), it sets up on slide (22) to remove axle (31), limiting plate (32) fixed connection is on support (18), be provided with shifting chute (33) on limiting plate (32), it is located shifting chute (33) to remove axle (31) one end, be provided with on limiting plate (32) and be used for carrying out spacing first stopper (34) to removing axle (31), first stopper (34) rotate to be connected on limiting plate (32), first stopper (34) below fixedly connected with baffle (35), just first stopper (34) butt is on baffle (35), equal fixedly connected with branch (36) on first stopper (34) and limiting plate (32), two connect through extension spring (37) between branch (36).

4. The long-span walking-type steel box girder incremental launching construction equipment as claimed in claim 3, wherein: fixedly connected with extension board (5) on slide (22), spout (51) have been seted up on extension board (5), spout (51) internal slipping is connected with slider (52), removal axle (31) fixed connection is on slider (52), first otic placode (53) of fixedly connected with on slider (52), one end fixedly connected with second otic placode (54) of slide (22) are kept away from in extension board (5), fixedly connected with guide bar (55) are gone up in first otic placode (53), guide bar (55) slide and wear to establish on second otic placode (54), guide bar (55) are equipped with reset spring (56) between first otic placode (53) and second otic placode (54), reset spring (56) are in by compression state.

5. The long-span walking-type steel box girder pushing construction equipment of claim 3, wherein: seted up guide way (4) on limiting plate (32), guide way (4) are located the upper end of shifting chute (33), guide way (4) are close to one end and shifting chute (33) intercommunication of slide (22), guide way (4) other end downward sloping, guide groove (41) have still been seted up on limiting plate (32), guide groove (41) upper end and guide way (4) intercommunication, guide groove (41) lower extreme incline towards shifting chute (33) and communicate with shifting chute (33) bottom, holding tank (42) have been seted up on limiting plate (32), the sliding is provided with second stopper (43) in holding tank (42), the upper surface of second stopper (43) flushes with the lower cell wall of guide way (4), the one end that spout (51) were kept away from in second stopper (43) is provided with first top push spring (44), the one end fixed connection that second stopper (43) was kept away from in first top push spring (44) is on the cell wall of holding tank (42).

6. The long-span walking-type steel box girder pushing construction equipment of claim 1, wherein: a plurality of grooves of stepping down (111) have been seted up in lift seat (1), groove of stepping down (111) and spacing seat (13) one-to-one, spacing seat (13) are located groove of stepping down (111), a plurality of gusset (112) of fixedly connected with on spacing seat (13), gusset (112) are located groove of stepping down (111) to the butt is on the spacing seat (13) that corresponds.

7. The long-span walking-type steel box girder pushing construction equipment of claim 1, wherein: fixing device (14) are including articulated seat (6), backup pad (61) and fixed plate (62), articulated seat (6) are provided with a plurality of on spacing seat (13), backup pad (61) and articulated seat (6) one-to-one, just backup pad (61) articulate on articulated seat (6) that corresponds, fixed plate (62) fixed connection is on backup pad (61), fixed plate (62) butt is on the periphery of jack (12), be provided with a plurality of fixed subassemblies (63) that are used for carrying on spacing to fixed plate (62) on jack (12), just fixed subassembly (63) set up with fixed plate (62) interval.

8. The long-span walking-type steel box girder pushing construction equipment of claim 7, wherein: the fixing assembly (63) comprises a base (65) and limiting clamping blocks (66), two long grooves (67) are formed in the base (65), the limiting clamping blocks (66) correspond to the long grooves (67) one by one, the limiting clamping blocks (66) are arranged in the corresponding long grooves (67) in a sliding mode, the two limiting clamping blocks (66) are symmetrically arranged on two sides of the fixing plate (62) in the height direction, clamping grooves (68) are formed in the two limiting clamping blocks (66), and the fixing plate (62) corresponding to the limiting clamping blocks (66) is clamped in the clamping grooves (68) of the limiting clamping blocks (66).

9. The long-span walking-type steel box girder pushing construction equipment of claim 8, wherein: fixedly connected with horizontal pole (7) on base (65), the cover is established to the cover on horizontal pole (7) and is equipped with sleeve (71), it has two gangbar (72) to articulate on sleeve (71), gangbar (72) and spacing fixture block (66) one-to-one, just gangbar (72) articulate on corresponding spacing fixture block (66), the first bulge loop of fixedly connected with (73) on sleeve (71), fixedly connected with second bulge loop (74) on horizontal pole (7), just horizontal pole (7) first bulge loop (73) with the cover is equipped with second and pushes away spring (75) between second bulge loop (74), second pushes away spring (75) one end butt on first bulge loop (73), the other end butt that second pushed away spring (75) is on second bulge loop (74), the one end that second pushed away from second of sleeve (71) and pushes away from spring (75) is provided with nut (76), nut (76) threaded connection is on horizontal pole (7), and nut (76) and sleeve (71) butt.

10. The long-span walking-type steel box girder pushing construction equipment of claim 1, wherein: the driving device (15) comprises a guide seat (81), a fixing rod (83), a pulley (82) and a winch (8), wherein the fixing rod (83) is provided with a plurality of parts on the lifting seat (1), the guide seat (81) corresponds to the fixing rod (83) one by one, the guide seat (81) is fixedly connected to the corresponding fixing rod (83), the guide seat (81) is arranged on the support (18) in a sliding mode in the vertical direction, the pulley (82) is rotatably connected to the support (18), the winch (8) is fixedly connected to the position, close to the lower portion, of the support (18), a pull rope (84) is wound on the pulley (82), one end of the pull rope (84) is fixedly connected to the lifting seat (1), and the other end of the pull rope (84) is connected with the winch (8).

Images