CN208219419U - Facilitate the guide girder machine that low level is set a roof beam in place - Google Patents

Abstract

The utility model relates to bridge machine technical field more particularly to a kind of guide girder machines for facilitating low level to set a roof beam in place.The utility model facilitates the guide girder machine that low level is set a roof beam in place, including nose girder girder, front launching nose supporting leg, middle nose girder supporting leg, back launching nose supporting leg and multi-functional trolley；Front launching nose supporting leg, middle nose girder supporting leg, back launching nose supporting leg and multi-functional trolley are respectively arranged on nose girder girder；The two sides of multi-functional trolley are equipped with support platform；Wherein, front launching nose supporting leg, middle nose girder supporting leg and back launching nose supporting leg be able to drive nose girder girder and multi-functional trolley synchronize move up and down so that nose girder girder and multi-functional trolley are in high-order station or low level station；When nose girder girder and multi-functional trolley are in low level station, trolley support frame is provided in support platform.The utility model facilitates the guide girder machine that low level is set a roof beam in place, and cooperation beam delivering machine carries out height adjustment, to meet the bridge erection demand of different height.

Description

Beam guiding machine convenient for low-position beam erecting

Technical Field

The utility model relates to a bridge machinery technical field especially relates to a nose girder machine of convenient low level frame roof beam.

Background

The transporting and erecting integrated machine can be used for hoisting the concrete box girder of the passenger special line in a concrete beam yard and erecting the concrete box girder at a bridge position. Compared with the traditional transporting and erecting equipment, the transporting and erecting all-in-one machine has the advantages of high construction speed, flexibility, capability of realizing zero-distance bridging of a tunnel portal, no need of disassembling any part for the tunnel portal bridging connected with bridges and tunnels in mountainous areas, no need of auxiliary machinery, no need of excessive labor and the like.

The existing beam transporting and erecting integrated machine mainly comprises a beam transporting machine and a beam guiding machine, wherein the beam transporting machine is used for hoisting the beam guiding machine and the concrete box girder, and the beam guiding machine is used for guiding the beam transporting machine to hoist the concrete box girder. However, the beam transporting machine of the existing transporting and erecting integrated machine directly moves on the guide beam main beam of the guide beam machine, and when the beam is required to be erected at a low station in a tunnel entrance or a tunnel, the height of the beam transporting machine cannot be reduced, so that the normal work of the transporting and erecting integrated machine can be influenced.

Therefore, in view of the above disadvantages, it is desirable to provide a girder guide machine having a simple structure and capable of realizing girder erection work of different heights.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is to solve the problem that the nose girder machine among the prior art can't cooperate fortune roof beam machine to carry out altitude mixture control, can't satisfy the demand of not co-altitude frame roof beam.

(II) technical scheme

In order to solve the technical problem, the utility model provides a beam guide machine which is convenient for low-position beam erection,

the multifunctional trolley comprises a guide beam main beam, a guide beam supporting leg, a middle guide beam supporting leg, a rear guide beam supporting leg and a multifunctional trolley; the front guide beam support leg, the middle guide beam support leg, the rear guide beam support leg and the multifunctional trolley are respectively arranged on the guide beam main beam; supporting platforms are arranged on two sides of the multifunctional trolley; wherein,

the front guide beam support leg, the middle guide beam support leg and the rear guide beam support leg can drive the guide beam main beam and the multifunctional trolley to synchronously do lifting motion so that the guide beam main beam and the multifunctional trolley are positioned at a high position station or a low position station;

when the guide beam main beam and the multifunctional trolley are positioned at a low position, the supporting platform is provided with a trolley supporting frame.

Furthermore, the multifunctional trolley is movably arranged on the guide beam main beam, and the multifunctional trolley can move relative to the guide beam main beam along the length direction of the guide beam main beam and is used for driving the guide beam main beam to move or driving the beam transporting machine to move.

Furthermore, the multifunctional trolley comprises a plurality of trolleys, the trolleys are respectively arranged along the length direction of the main beam of the guide beam and movably connected with the main beam of the guide beam, and the trolleys can move along the length direction of the main beam of the guide beam; every two adjacent trolleys are connected through a pin shaft.

Furthermore, the multifunctional trolley also comprises an integral type frame, and the trolley is connected to the inner side of the top of the integral type frame through trolley lifting oil cylinders respectively, so that the integral type frame can ascend or descend in the vertical direction; the supporting platform is arranged on two sides of the integral frame.

Furthermore, a jack support is arranged at the rear end of the main beam of the guide beam, and when the main beam of the guide beam is switched between a high-position station or a low-position station, the jack support can support a jack so as to be matched with the main beam of the guide beam to adjust the height.

Furthermore, the front guide beam supporting leg comprises two upper and lower sliding columns, the upper and lower sliding columns are respectively vertically arranged at two ends of the front guide beam supporting leg, and the upper and lower sliding columns can slide along the vertical direction.

Furthermore, the middle guide beam supporting leg comprises a middle lower section column, the middle lower section column is located at the bottom end of the middle guide beam supporting leg, and the middle lower section column can turn over towards the bottom surface of the main guide beam.

Furthermore, the middle guide beam supporting leg further comprises a middle-upper section column and a middle-middle section column, the middle-upper section column is connected with the main beam of the guide beam, the middle-middle section column can move relative to the middle-upper section column along the vertical direction, and the middle-lower section column is hinged with the bottom of the middle-middle section column.

Furthermore, back nose girder landing leg includes back lower section post, and back lower section post is located the bottom of back nose girder landing leg, and back lower section post can be to the bottom surface upset of nose girder main beam.

Furthermore, the rear guide beam supporting leg also comprises a rear fixed joint and a rear sliding joint; the rear fixed joint is connected with the main beam of the guide beam; the rear sliding section is connected with the rear fixed section in a sliding manner and can move relative to the rear fixed section along the length direction of the rear fixed section; the back lower section column is arranged at the bottom of the back sliding section and is rotationally connected with the back sliding section.

(III) advantageous effects

Compared with the prior art, the above technical scheme of the utility model has following advantage:

the utility model discloses a convenient low level frame roof beam machine of nose girder, its nose girder landing leg, well nose girder landing leg and back nose girder landing leg can drive nose girder and multi-functional platform truck and do the elevating movement in step to make nose girder and multi-functional platform truck be in high-order station or low level station; when the guide beam main beam and the multifunctional trolley are positioned at a low position, the supporting platform is provided with a trolley supporting frame. The height of roof beam machine is transported in the height change of frame roof beam station as required according to the difference to when the supporting platform upper surface of multi-functional platform truck reduces, can set up the platform truck support frame on supporting platform, so that the holistic upper surface height of the supporting platform of multi-functional platform truck is unchangeable, with the height of the preceding system of walking of guarantee fortune roof beam machine, thereby cooperation fortune roof beam machine realizes the operation of feeding the roof beam and falling the roof beam under the low-order station.

Drawings

Fig. 1 is a schematic structural view of an integrated frame conveying machine of a beam guide machine for conveniently erecting beams at a low position by applying the embodiment of the invention;

fig. 2 is a schematic structural view of a beam guiding machine for conveniently erecting a beam at a low position according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a middle guide beam support leg of the guide beam machine according to the embodiment of the present invention;

fig. 4 is a left side view of a front girder supporting leg of the girder guide machine according to the embodiment of the present invention;

fig. 5 is a front view of a front girder supporting leg of the girder guiding machine according to the embodiment of the present invention;

fig. 6 is a left side view of a rear guide beam leg of the guide beam machine according to the embodiment of the present invention;

fig. 7 is a front view of a rear guide beam leg of a guide beam machine according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a jack support of a beam guide machine according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a multifunctional trolley of the girder guiding machine according to the embodiment of the present invention;

fig. 10 is a schematic structural view of a cart of the multifunctional trolley according to the embodiment of the present invention;

fig. 11 is a schematic structural view of a carriage suspension mechanism of the multi-function carriage according to the embodiment of the present invention;

fig. 12 is a schematic structural view of a third cart of the utility model;

fig. 13 is a schematic structural diagram of a beam transporting machine of the transporting and erecting integrated machine according to the embodiment of the present invention;

fig. 14 is a front view of a front walking system of a beam transporting machine according to an embodiment of the present invention;

fig. 15 is a left side view of the front walking system of the beam transporting machine according to the embodiment of the present invention;

fig. 16 is a schematic structural view of a telescopic girder transporting leg of a girder transporting machine according to an embodiment of the present invention;

fig. 17-23 are working condition flow charts of a method for erecting a beam at a low position by using an all-in-one machine for transporting and erecting a beam guide machine for conveniently erecting a beam at a low position according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the embodiment of the utility model, as shown in fig. 1, the utility model discloses the nose girder machine of convenient low level frame roof beam is applied to fortune frame all-in-one, and wherein, fortune frame all-in-one includes nose girder machine 100 and fortune roof beam machine 200, and wherein, fortune roof beam machine 200 is used for carrying and hangs nose girder machine 100 and concrete box beam (hereinafter referred to as "box beam"), and nose girder machine 100 assists fortune roof beam machine 200 to the cooperation realizes the via hole frame roof beam in the bridge erects. Specifically, the girder transport 200 is capable of transporting the girder guide 100 and, in cooperation with the girder guide 100, leaving the girder guide 100 in the girder erection station. The beam transporting machine 200 can also transport the box beam to and from the beam yard and the beam erecting station, and complete the erection of the box beam in cooperation with the beam guiding machine 100.

As shown in fig. 2, the utility model discloses a make things convenient for nose girder machine 100 of low level frame roof beam includes nose girder 110, preceding nose girder landing leg 120, well nose girder landing leg 130 and back nose girder landing leg 140, and preceding nose girder landing leg 120, well nose girder landing leg 130 and back nose girder landing leg 140 set up respectively on nose girder 110. The front girder leg 120 and the middle girder leg 130 are respectively movable on the guide girder 110 along the length direction of the guide girder 110. And the front guide leg 120 is always vertically disposed to be able to extend or retract to the bottom surface of the guide main beam 110. When the front girder leg 120 extends out of the bottom surface of the main girder 110, the main girder 110 can be supported; when the front girder legs 120 are retracted to the bottom surface of the girder main 110, they can be prevented from obstructing the girder transporting machine 200 from transporting the girder transporting machine 100 by contacting the ground or other obstacles. The middle guide beam support leg 130 may be vertically disposed below the guide beam main beam 110, or may be suspended by the front suspension device 170 at the front end of the guide beam main beam 110 and suspended at the front end of the guide beam main beam 110, and the bottom surface of the middle guide beam support leg 130 is not lower than the bottom surface of the guide beam main beam 110. When the center sill leg 130 is positioned below the center sill main 110, it can support the center sill main 110; when the center sill leg 130 is hung from the front end of the center sill main 110, the center sill leg 130 can be prevented from contacting the ground or other obstacles to prevent the girder transporting machine 200 from transporting the girder transporting machine 100. The rear guide leg 140 is rotatably connected to the rear end of the guide main beam 110, and therefore, the rear guide leg 140 can rotate in a vertical plane, so that the rear guide leg 140 can be vertically disposed below the guide main beam 110 or disposed in parallel at the rear end of the guide main beam 110. When the rear guide beam legs 140 are vertically arranged, the guide beam main beam 110 can be supported; when the rear girder legs 140 are horizontally disposed, it is possible to prevent the girder transporting machine 200 from being hindered from transporting the girder transporting machine 100.

It should be noted that, in the embodiment of the present invention, the front end of the main beam 110 of the guiding beam and the front end of the guiding beam machine 100 are the same end, specifically, the end of the guiding beam machine 100 that is far away from the beam transporting machine 200 or is not connected to the beam transporting machine 200 when the bridge erecting work is performed; the rear end of the main girder 110 of the guide beam is the same as the rear end of the guide beam machine 100, specifically, the end of the guide beam machine 100 close to the girder transporting machine 200 or connected with the girder transporting machine 200 during the bridge erecting work.

The embodiment of the utility model provides an in, the front end of nose girder 110 is equipped with front suspension structure, be equipped with well landing leg guide rail along the central line on the bottom surface of nose girder 110, well landing leg guide rail extends to front suspension structure's bottom surface, well nose girder landing leg 130 is connected in nose girder 110 below through well train and well landing leg guide rail cooperation, makes well nose girder landing leg 130 be connected with well landing leg guide rail to make well nose girder landing leg 130 can follow the length direction of nose girder 110 and remove in nose girder 110 and front suspension structure below. The middle guide beam support legs 130 can slide to the front end of the guide beam main beam 110 and can be finally hung on a front hanging mechanism at the front end of the guide beam main beam 110; the center sill leg 130 can also move to the rear end of the guide main beam 110 and ultimately to a position proximate the rear guide leg 140. In the process of moving the middle guide beam leg 130, since the maximum width thereof is the same as the width of the guide beam main beam 110 and is located right below the guide beam main beam 110, the movement of the front guide beam leg 120 or the multifunctional cart 150 is not hindered, and the movement is not hindered by the front guide beam leg 120 or the multifunctional cart 150.

The front suspension structure comprises a guide beam lifting frame and a winch arranged on the guide beam lifting frame, when the middle guide beam supporting leg 130 moves from the bottom surface of one of the guide beam main beam 110 or the front suspension structure to the junction of the front suspension structure and the guide beam main beam 110 through a middle wheel system, the winch can drive the middle guide beam supporting leg 130 to do ascending or descending movement, so that the middle guide beam supporting leg 130 moves to the bottom surface of the other of the guide beam main beam 110 or the front suspension structure. For example, when the middle girder leg 130 moves along the bottom surface of the main girder 110 to the junction between the front suspension structure and the main girder 110, the winch operates and drives the middle girder leg 130 to perform an ascending motion, so that the middle girder leg 130 can move upward to the guide girder hoisting frame and finally to the front end of the guide girder hoisting frame. When the center sill leg 130 moves in the opposite direction, the principle is the same, and the description thereof is omitted.

As shown in fig. 3, the middle girder leg 130 includes a middle upper column, a middle column 133 and a middle lower column 134 which are connected in sequence from top to bottom in the vertical direction. The middle-middle post 133 is movable in a vertical direction relative to the middle-middle post. The middle lower stud 134 is located at the bottom end of the middle girder leg 130, and the middle lower stud 134 may be flipped over to the bottom surface of the girder main beam 110. Meanwhile, the middle-middle section column 133 and the middle-lower section column 134 can also rotate relative to the middle-middle section column to change the included angle between the middle-middle section column 133 and the middle-lower section column 134 and the main guide beam 110 in the horizontal direction.

Specifically, the middle and upper studs are used to connect with the main guide beam 110, and serve to connect the middle guide beam leg 130 with the main guide beam 110. The middle-middle section column 133 is slidably connected with the middle-upper section column, plays a role of supporting the guide beam main beam 110, and is used for bearing the heavy load of the through hole of the beam transporting machine 200. A middle sliding hydraulic oil cylinder which is vertically arranged is arranged between the middle and middle section columns 133 and the middle and middle section columns, so that the middle and middle section columns 133 can move in the vertical direction, the middle and middle section columns 133 can move relative to the middle and middle section columns in the length direction of the middle and middle section columns, the middle guide beam supporting leg 130 can extend or shorten integrally, and the requirements of different lengths of the middle and middle guide beam supporting leg 130 are met.

Meanwhile, the middle and upper studs can drive the middle and upper studs 133 and 134 to rotate, so that the girder guide machine 100 can be adjusted to be in place according to the specific situation when the curve is bridged. Specifically, the middle and upper joint column includes a middle joint connection portion 131 and a middle joint rotation portion 132, the middle joint connection portion 131 is rotatably connected with the middle joint rotation portion 132, the middle joint connection portion 131 is connected with the guide beam main beam 110, and the middle joint rotation portion 132 is connected with the middle and upper joint column 133. In the embodiment of the present invention, the middle joint connecting portion 131 and the middle joint rotating portion 132 may be connected by a middle joint rotating shaft 135.

The middle-lower section column 134 includes two middle-lower section units, each of which is disposed along the width direction of the guide girder main beam 110 and is hinged to the bottom of the middle-lower section column 133. In an embodiment of the present invention, the middle and lower units may be respectively hinged to the middle rotating portion 132. The two middle-lower section units can be respectively turned by 90 degrees along the length direction of the guide beam main beam 110 to the bottom surface of the guide beam main beam 110, so that the middle-lower section units have two vertical or horizontal states, namely the middle-lower section units have two states which are vertical or parallel to the guide beam main beam 110 relative to the guide beam main beam 110, so that the whole length of the middle guide beam supporting leg 130 can be further extended or shortened, and the requirements of different beam erecting heights are met.

The middle wheel system comprises a middle guide wheel, a middle reverse hanging wheel and a middle support wheel, wherein the middle guide wheel, the middle reverse hanging wheel and the middle support wheel are respectively arranged at the top of the middle guide beam supporting leg 130, and particularly can be respectively arranged at the top of the middle upper section column.

The middle reverse hanging wheel is used for connecting the middle guide beam supporting leg 130 with the middle supporting leg guide rail, and can play a role in preventing overturning. The middle reverse hanging wheel is connected with a motor to provide power for the middle reverse hanging wheel, so that the middle reverse hanging wheel can drive the middle guide beam supporting leg 130 to move along the middle supporting leg guide rail. The center guide wheels are positioned in the center leg rail in parallel with the bottom surface of the center leg rail, and the diameter of the center guide wheels is the same as the width of the center leg rail, so that the center guide wheels can guide the center guide beam leg 130 to move according to the trajectory of the center leg rail. The middle support wheel is located between the middle-upper column and the bottom surface of the main guide beam 110 to support the main guide beam 110, and can play a role in supporting the main guide beam 110 to longitudinally move through the hole.

As shown in fig. 4-5, the front beam leg 120 includes an embracing mechanism 121, left and right sliding beams 122, and upper and lower sliding columns 123. The front girder leg 120 is movably connected to the front girder 110 by the surrounding mechanism 121, so that the front girder leg 120 can move along the length direction of the front girder 110. The left and right sliding beams 122 are connected to the embracing mechanism 121 so as to be movable in the horizontal direction, and can drive the up-down sliding columns 123 to move in the width direction of the guide beam main beam 110. The up-down sliding columns 123 are provided at both ends of the left and right sliding cross members 122 and can slide in the vertical direction, so that the up-down sliding columns 123 can extend out of or retract into the bottom surface of the guide girder 110. When the up-down sliding column 123 extends out of the bottom surface of the main guide beam 110, the main guide beam 110 can be supported; when the up-down sliding columns 123 retract the bottom surface of the girder 110, it can be prevented from obstructing the girder transporting machine 200 from transporting the girder 100 by contacting the ground or other obstacles.

The front beam leg 120 further includes a front wheel train, and the surrounding mechanism 121 is sleeved on the main beam 110 and movably connected to the main beam 110 through the front wheel train. The front wheel system comprises a front bearing wheel 126, a front travelling wheel 124 and a front reverse hanging wheel 125; the front traveling wheels 124 are disposed between the embracing mechanism 121 and the top surface of the main beam 110, and the front traveling wheels 124 are connected to the driving mechanism for driving the embracing mechanism 121 to move. The front reverse hanging wheel 125 movably connects the hoop mechanism 121 with the main beam 110 to prevent overturning. Flanges are arranged on two sides of the top of the main beam 110 of the guide beam, and the front bearing wheel 126 is arranged between the surrounding mechanism 121 and the bottom surfaces of the flanges to play a bearing role.

The top of the embracing mechanism 121 is provided with an embracing bracket, the left and right sliding beams 122 can be movably arranged in the embracing bracket along the width direction of the guide beam main beam 110 in a penetrating way, and the left and right sliding beams 122 can horizontally move along the width direction of the guide beam main beam 110 through the driving of a front transverse hydraulic oil cylinder, so that the upper and lower sliding columns 123 can synchronously move along the width direction of the guide beam main beam 110, and the beam erecting requirement of a bridge bending section is met.

The up-down sliding columns 123 are respectively connected with two ends of the left-right sliding beam 122 in a sliding manner, and the up-down sliding columns 123 can move relative to the left-right sliding beam 122 along the vertical direction. Meanwhile, the distance between the two upper and lower sliding columns 123 is greater than the maximum width of the center sill leg 130, so that the center sill leg 130 can freely pass through the front sill leg 120 without interfering with each other when the center sill leg 130 and the front sill leg 120 move. The embodiment of the utility model provides an in the upper and lower sliding column 123 and the horizontal sliding beam 122 accessible front vertical shift hydraulic connection to sliding column 123 stretches out or withdraws the bottom surface of nose girder 110 along vertical direction about the drive, with the demand of co-altitude when satisfying the frame roof beam.

The embodiment of the utility model provides an in, the bottom of post 123 slides from top to bottom is equipped with the fore-stock base, and the bottom maximum width of fore-stock base is less than the width between the post 123 that slides from top to bottom to guarantee that the bottom of nose girder landing leg 120 can support completely on treating the pier of erectting, prevent because the distance is greater than the width of treating the pier of erectting between the post 123 slides from top to bottom, and lead to nose girder landing leg 120 can't support nose girder 110 reliably on treating the pier of erectting.

As shown in fig. 6 to 7, the rear guide beam leg 140 includes a rear fixing section 141, a rear sliding section 142, and a rear lower section 143 in order from top to bottom along the vertical direction. Wherein, back sliding joint 142 can drive back lower section post 143 and slide for back fixed knot 141 along vertical direction to make back nose girder landing leg 140 can wholly extend or shorten, satisfy the demand to the different length of back nose girder landing leg 140. The rear lower stud 143 can be flipped (specifically, flipped in a direction toward the center sill leg 130) toward the bottom surface of the main girder 110, that is, the rear lower stud 143 has two states perpendicular or parallel to the main girder 110 with respect to the main girder 110, so as to further extend or shorten the overall length of the rear guide girder leg 140, thereby meeting the requirements of different frame heights.

Specifically, the top end of the rear fixed joint 141 is connected to the main guide beam 110 through the guide beam fixing shaft 144, so that the rear fixed joint 141 can rotate around the guide beam fixing shaft 144, and the rear guide beam legs 140 can be retracted to be disposed at the rear end of the main guide beam 110 in parallel, thereby facilitating the forward or backward movement of the main guide beam 110 without being obstructed by the ground or other obstacles.

The rear guide beam leg 140 further includes a rear sliding section 142, the rear sliding section 142 is slidably connected to the rear fixing section 141, and the rear sliding section 142 can move relative to the rear fixing section 141 along the length direction of the rear fixing section 141. Specifically, the rear sliding joint 142 is connected to the rear fixed joint 141 by a rear sliding hydraulic cylinder, so that the rear sliding joint 142 can move in the length direction thereof with respect to the rear fixed joint 141.

The rear lower section column 143 is provided at the bottom of the rear sliding section 142, and the rear lower section column 143 can be turned over toward the bottom surface of the girder main beam 110. Specifically, the rear lower section column 143 is disposed at the bottom of the rear sliding section 142 and is rotatably connected to the rear sliding section 142. In the embodiment of the present invention, the rear lower section column 143 and the rear sliding section 142 may be hinged. Therefore, the rear lower pitch post 143 can be folded, that is, the rear lower pitch post 143 can be turned over to the ground of the girder main beam 110, so as to adjust the height of the girder guiding machine 100, thereby realizing a low-level girder at the tunnel entrance or a high-level girder without a tunnel.

It should be noted that, when the utility model discloses a make things convenient for nose girder machine of low level frame roof beam is in the curve bridging operating mode, can use well nose girder landing leg 130 as the fulcrum, rotate relatively between well lower section post 134 and well middle section post 133 and the nose girder 110 of nose girder landing leg 130 in through the control to angle between the bottom of lower section post 134 and the nose girder 110 in the change, back nose girder landing leg 140 of the rear end of messenger nose girder 110 can be located the pier of corresponding treating erectting directly over. And the position of the up-down sliding column 123 is changed by controlling the left-right sliding beam 122 of the front guide beam leg 120 to move along the width direction of the guide beam main beam 110, so that the up-down sliding column 123 is positioned right above the corresponding bridge pier to be erected. Thereby enabling the girder guide 100 to adjust the girder guide 100 to be in place according to the specific situation when the curve is bridged.

In the embodiment of the present invention, the front guide beam leg 120, the middle guide beam leg 130, and the rear guide beam leg 140 can drive the guide beam girder 110 to rise or fall, so that the guide beam girder 110 is located at a high position or a low position. In order to ensure that the main guide beam 110 can be reliably adjusted in height, as shown in fig. 8, a jack support 160 is provided at the rear end of the main guide beam 110, and when the main guide beam 110 is switched between the high position and the low position, the jack support 160 can support a jack to cooperate with the main guide beam 110 to adjust the height.

In one embodiment of the present invention, the jack stand 160 is detachably connected to the main beam 110. In another embodiment of the present invention, the jack stand 160 is movably connected to the guide girder 110, and can extend or retract from the rear end of the guide girder 110 along the length direction of the guide girder 110. In yet another embodiment of the present invention, the jack stand 160 is rotatably connected to the guide girder 110 so that the jack stand 160 can be extended or retracted from the rear end of the guide girder 110.

The embodiment of the utility model provides an utilize jack stand 160 to realize that the concrete method of the height adjustment of nose girder main beam 110 of nose girder machine 100 does:

when the height of the guide girder 110 needs to be lowered, the jack stand 160 extends out of the rear end of the guide girder 110 and is supported on the jack. The middle lower leg 134 of the middle guide beam leg 130 is turned upward and the rear lower leg 143 of the rear guide beam leg 140 is turned upward. The jacks and the front girder legs 120 are simultaneously lowered so that the middle girder legs 130 and the rear girder legs 140 are supported on the pier to be erected. At this time, the jack may be detached, and the jack bracket 160 is retracted to the rear end of the main guide beam 110, thereby completing the switching of the main guide beam 110 from the high position to the low position. When the height of the main beam 110 of the guide beam needs to be raised, the principle is the same, and the description is omitted.

The embodiment of the utility model provides an in, make things convenient for nose girder machine 100 of low level frame roof beam still includes multi-functional platform truck 150, multi-functional platform truck 150 movably sets up on nose girder 110, and multi-functional platform truck 150 can be followed the length direction of nose girder 110 and is made relative movement with nose girder 110 for drive nose girder 110 removes or drive fortune roof beam machine 200 removes.

As shown in fig. 9, the multi-purpose cart 150 includes a plurality of carts 151 and an integrated frame 152, the carts 151 being disposed along a length direction of the girder 110 and connected to the girder 110, respectively, and the carts 151 being connected to an inside of a top portion of the integrated frame 152, respectively. Specifically, the trolleys 151 are movably connected with the main beam 110, the trolleys 151 can move along the length direction of the main beam 110, every two adjacent trolleys 151 are connected through a pin shaft, and the trolleys 151 are respectively connected to the inner side of the top of the integral frame 152 through trolley lifting cylinders, so that the integral frame 152 can ascend or descend along the vertical direction.

In the embodiment of the present invention, the two sides of the integral frame 152 are provided with the supporting platform 153 for driving the beam transporting machine 200 to move. The front guide beam support leg 120, the middle guide beam support leg 130 and the rear guide beam support leg 140 can drive the guide beam main beam 110 and the multifunctional trolley 150 to synchronously move up and down, so that the guide beam main beam 110 and the multifunctional trolley 150 are positioned at a high position or a low position. When the main beam 110 and the multifunctional trolley 150 are located at the lower station, in order to ensure that the overall height of the supporting platform 153 is unchanged, that is, the height of the forward traveling system of the beam transporting machine 200 is unchanged, a trolley supporting frame is arranged on the supporting platform 153.

In the embodiment of the present invention, a relative movement mechanism is disposed between the integral frame 152 and the guide girder 110 for driving the multifunctional trolley 150 and the guide girder 110 to move relatively. Namely, when the position of the multifunctional trolley 150 is fixed, the multifunctional trolley 150 can drive the guide girder 110 to move; when the guide girder 110 is fixed in position, the multi-function trolley 150 can move on the guide girder 110.

In an embodiment of the present invention, the relative moving mechanism includes a guide beam chain disposed on the guide beam main beam 110 and a meso-position driver disposed at the top of the trolley 151 near the front end of the guide beam main beam 110; the meso position driver includes frame sprocket and meso position driving motor, and the nose girder chain is connected with the frame sprocket cooperation, and well for driving motor can be hydraulic motor and speed reducer, hydraulic motor drive speed reducer to drive the frame sprocket through the speed reducer and drive the nose girder chain, so that multi-functional platform truck 150 is relative motion with nose girder 110.

In another embodiment of the present invention, the relative moving mechanism comprises a guide beam rack disposed on the guide beam main beam 110 and a meso-position driver disposed on the top of the trolley 151 near the front end of the guide beam main beam 110; the middle driver comprises a frame gear and a middle driving motor, the guide beam rack is connected with the frame gear in a matching way, and the middle driving motor drives the frame gear to drive the guide beam rack so as to enable the multifunctional trolley 150 and the guide beam main beam 110 to move relatively.

Each trolley 151 is connected to the top inner side of the integral frame 152 in a lifting and moving manner through a corresponding trolley lifting cylinder. And the utility model discloses an integral frame 152 of multi-functional platform truck 150 can reciprocate, when the height of highly changing guide beam and multi-functional platform truck 150 of frame roof beam station according to the difference as required, can highly adjust integral frame 152 to cooperation fortune roof beam machine 200 realizes feeding the roof beam and falls the roof beam operation.

In the embodiment of the present invention, the number of the trolleys 151 is six, and the trolleys include a first trolley 151, three second trolleys 151 and two third trolleys 151 in sequence from the front end to the rear end of the main beam 110. The surfaces of the two sides of the guide beam main beam 110 are respectively provided with a trolley 151 track for guiding the trolley 151 to move. As shown in fig. 10, the first cart 151, the second cart 151 and the third cart 151 respectively include a cart cross beam 151-1 and a cart sliding block 151-2, the cart sliding blocks 151-2 are respectively disposed at two ends of the cart cross beam 151-1 and are connected in a cart 151 track through a cart anti-grab wheel 151-3 to realize the movement of the cart 151 relative to the guide girder 110. The first carriage 151 is similar to the second carriage 151 in structure, and since the middle driver is disposed on the top of the first carriage 151, the differences are: when the middle driver is installed at the top end of the first carriage 151, in order to increase the height of the middle driver, the carriage cross beam 151-1 of the first carriage 151 is higher than the second carriage 151. The third trolley 151 is different from the first trolley 151 and the second trolley 151 in that the top end of the third trolley 151 is further provided with a structure for connecting with the girder transporting machine 200.

The multifunctional trolley 150 is provided with a trolley hanging mechanism 154 on the top, and the trolley connecting mechanism 250 is matched with the trolley hanging mechanism 154 so that the multifunctional trolley 150 is hung below the girder 210 of the girder transporting machine 200, so that the girder 210 can load the girder 110. The trolley hanging mechanism 154 is connected to the multi-function trolley 150 through a trolley hanger, which can be extended or shortened in the vertical direction and drives the multi-function trolley 150 to move away from or close to the girder 210. As shown in fig. 11, the number of the trolley hanging mechanisms 154 is two, the two trolley hanging mechanisms 154 are respectively connected with the tops of two trolleys 151 (i.e. two third trolleys 151) of the multifunctional trolley 150 near the rear end of the main girder 110 of the guide beam through trolley hangers, each trolley hanger comprises a telescopic hanger 154-1, a first adjusting section 154-2 and a second adjusting section 154-3, which are sequentially connected from top to bottom along the vertical direction, the second adjusting section 154-3 is movably inserted into the first adjusting section 154-2, the first adjusting section 154-2 is movably inserted into the telescopic hanger 154-1, and the telescopic hanger 154-1 is fixedly connected with the trolley hanging mechanisms 154. Specifically, first and second adjustment segments 154-2 and 154-3 can be driven by corresponding adjustment segment hydraulic cylinders, respectively, such that second adjustment segment 154-3 can be extended or retracted to first adjustment segment 154-2 and first adjustment segment 154-2 can be extended or retracted to telescopic hanger 154-1. When the girder transporting main beam 210 moves up and down along the vertical direction, the trolley hanger can be extended and retracted to keep the heights of the girder guiding main beam 110 and the multifunctional trolley 151 of the girder guiding machine 100 unchanged when the girder transporting main beam 210 of the girder transporting machine 200 performs lifting motion, so as to meet different height requirements of an overhead girder, a tunnel exit girder and a tunnel entrance girder. Specifically, when the frame beam is elevated, the first adjusting section 154-2 is completely extended out of the telescopic hanger 154-1, the second adjusting section 154-3 is not extended out of the first adjusting section 154-2, when the frame beam is erected at the tunnel outlet, the first adjusting section 154-2 and the second adjusting section 154-3 are completely extended out, and when the frame beam is erected at the tunnel inlet, the first adjusting section 154-2 and the second adjusting section 154-3 are completely retracted.

In the embodiment of the present invention, the top of the multifunctional cart 150 is further provided with a cart hanging beam 151-4 and a cart top beam 151-5, the cart hanging beam 151-4 is connected to the bottom of the cart rack, and the cart top beam 151-5 is movably disposed between the cart rack and the multifunctional cart 150 along the vertical direction relative to the cart rack. Specifically, as shown in fig. 12, there are two trolley hanging beams 151-4 and two trolley top beams 151-5, one trolley hanging beam 151-4 and one corresponding trolley top beam 151-5 are set as a group, and the two groups of trolley hanging beams 151-4 and two groups of trolley top beams 151-5 are respectively fixed on the tops of two trolleys 151 (i.e., two third trolleys 151) near the rear end of the guide girder 110. The top end of the trolley hanging beam 151-4 is provided with a hanging beam hanging part, and the trolley hanging beam 151-4 is hung and hung on a hanging beam at the bottom of the trolley hanging frame through the hanging beam hanging part. The trolley top beam 151-5 is positioned between the top surface of the trolley 151 and the trolley hanging rack, when the trolley connecting mechanism 250 is connected with the trolley hanging mechanism 154, the multifunctional trolley 150 is hung below the main beam 210 of the conveying beam, and after the telescopic hanging rack 154-1 is stressed, the trolley top beam 151-5 tightly pushes the trolley hanging beam 151-4, so that the trolley hanging beam 151-4 and the trolley top beam 151-5 are kept locked on a hanging beam at the bottom of the trolley hanging rack.

As shown in fig. 13, the girder transporting machine 200 includes a girder transporting main girder 210, a front walking system 220, a rear walking system 230, a hoist lifting structure 260, and telescopic girder transporting legs 240. The girder 210 is a cross beam of a box structure, the front walking system 220 and the rear walking system 230 are respectively and fixedly connected to two ends of the girder 210, the front walking system 220 is fixed at the front end of the girder 210, and the rear walking system 230 is fixed at the rear end of the girder 210. The telescopic girder supporting legs 240 are disposed on the bottom surface of the girder 210, and the telescopic girder supporting legs 240 are disposed between the front traveling vehicle system and the rear traveling vehicle system and are close to the front traveling vehicle system. The number of the lifting structures 260 is two, and the two lifting structures are respectively fixed on the bottom surface of the main girder 210 of the transport beam and are positioned between the telescopic support legs 240 of the transport beam and the rear traveling system 230. The distance between the two hoist lifting structures 260 is the same as the length of the box girder. The lifting mechanism is used for lifting the box girder, and the front walking system 220 and the rear walking system 230 are used for driving the girder transporting main girder 210 and other structures of the girder transporting machine 200 to synchronously move, so that the girder transporting machine 200 can transport the girder guiding machine 100 and the box girder. When the girder transporting machine 200 needs to be fixed, the telescopic girder legs 240 can be supported on the bottom surface to fix the position of the girder transporting machine 200.

It should be noted that, in the embodiment of the present invention, the front end of the girder transporting main beam 210 and the front end of the girder transporting machine 200 are the same end, specifically, the end of the girder transporting machine 200 close to the girder guiding machine 100 or connected to the girder guiding machine 100 when the bridge erecting work is performed; the rear end of the girder transporting main beam 210 is the same as the rear end of the girder transporting machine 200, and specifically, the rear end of the girder transporting machine 200 is far away from the girder guiding machine 100 or is not connected with the girder guiding machine 100 when the bridge erecting work is performed.

Specifically, each lifting structure 260 includes two lifting units, and the two lifting units are symmetrically fixed to two sides of the girder 210. Each lifting structure 260 is used for being connected with the front end and the rear end of the box girder and lifting the box girder so as to facilitate the transportation of the box girder.

The bottom surface of the front end of the main girder 210 of the transport beam is provided with a step surface which is inwards concave, and the front walking system 220 is fixed on the step surface. Because the front end of the girder transporting main beam 210 is provided with the step surface, the collision or friction between the bottom surface of the front end of the girder transporting main beam 210 and the rear end of the girder guiding main beam 110 can be prevented when the girder guiding main beam 110 is connected with the girder transporting main beam 210, and the situation that the girder transporting machine 200 cannot transport the girder guiding machine 100 due to the connection between the girder transporting main beam 210 and the girder guiding machine 100 being obstructed can be avoided.

The embodiment of the utility model provides an in, the front driving system can drive fortune roof beam girder 210 in step with back driving system and be elevating movement to make fortune roof beam girder 210 be elevating movement along vertical direction. Specifically, the front walking system 220 includes a front walking bracket 221, and the front walking bracket 221 is connected to the front end of the girder 210 and can drive the girder 210 to move up and down. The front walking system 220 further includes a front walking wheel set 222, wherein the front walking wheel set 222 is disposed at the bottom of the front walking frame 221 and can drive the front walking frame 221 to move up and down. The number of the front running wheel sets 222 is two, the two front running wheel sets 222 are arranged in parallel along the length direction of the girder 210, and the distance between the two front running wheel sets 222 is greater than the maximum width of the girder guide 100. The rear traveling system 230 includes a rear traveling bracket, which is connected to the rear end of the girder 210 and can drive the girder 210 to perform a lifting motion. The rear traveling system 230 further includes a rear traveling wheel set disposed at the bottom of the rear traveling bracket and capable of driving the rear traveling bracket to perform a lifting motion. The number of the rear traveling wheel sets is two, the two rear traveling wheel sets are arranged in parallel along the length direction of the girder transporting main beam 210, and the distance between the two rear traveling wheel sets is greater than the maximum width of the girder guiding machine 100.

Since the front traveling system 220 and the rear traveling system 230 have the same structure in the embodiment of the present invention, the front traveling system 220 is described as an example as shown in fig. 14 to 15. The front walking system 220 includes a front walking bracket 221 and two front walking wheel sets 222, wherein the front walking bracket 221 is used for connecting the front walking wheel sets 222 to the lower end of the girder 210, so that the front walking wheel sets 222 can drive the front end of the girder 210 to move. The middle point of the front walking support 221 is fixed at the front end of the girder transporting main beam 210 through the front walking lifting system 223, the front walking lifting system 223 can be a front walking hydraulic cylinder, and the front walking hydraulic cylinder can enable the girder transporting main beam 210 to rise or fall along the vertical direction so as to meet the requirements of different frame beam heights. Meanwhile, the front walking support 221 is arranged along the length direction of the girder transporting main beam 210, and two front walking wheel sets 222 are respectively arranged on two sides of the bottom end of the front walking support 221 along the length direction of the girder transporting main beam 210, and the distance between the two front walking wheel sets 222 is greater than the maximum width of the girder guiding machine 100, so that the girder guiding machine 100 can pass through the two front walking wheel sets 222, thereby facilitating the cooperation of the girder transporting machine 200 and the girder guiding machine 100, and enabling the girder guiding machine 100 to move to a girder erecting station or complete the erection of a box girder. The front traveling wheel set 222 is connected to the bottom of the front traveling bracket 221 through a front wheel hydraulic cylinder, and can drive the front traveling bracket 221 to perform lifting movement, and further drive the girder 210 to ascend or descend.

The two front traveling wheel sets 222 have the same structure and respectively comprise a front wheel bracket 224 which is vertically arranged, and a plurality of front traveling rollers 225 are respectively and uniformly distributed at the bottom of each front wheel bracket 224. Each front walking roller 225 is connected to the front wheel bracket 224 through a front steering mechanism. Specifically, the front steering mechanism is vertically provided with a front steering shaft, the front steering shaft can rotate along the axis of the front steering shaft, and the front walking roller 225 is fixed at the bottom end of the front steering shaft, so that the front steering shaft can drive the front walking roller 225 to rotate by taking the axis of the front steering shaft as a shaft, and the adjustment of the walking direction of the front walking roller 225 is completed. The front travel roller 225 is further correspondingly provided with a front travel steering system 226, a front travel power system and a front travel braking system, the front travel steering system 226 can drive the front steering shaft to rotate so as to change the travel direction of the front travel roller 225, the front travel power system can drive the front travel roller 225 to roll forwards or backwards, and the front travel braking system can control the front travel roller 225 to stop moving.

As shown in fig. 16, the telescoping spar legs 240 are capable of being lengthened or shortened along their length. Specifically, the telescopic girder supporting legs 240 include primary girder supporting legs 241 and secondary girder supporting legs 242, the primary girder supporting legs 241 are connected with the girder 210, and the secondary girder supporting legs 242 are slidably connected with the primary girder supporting legs 241, so that the secondary girder supporting legs 242 can move relative to the primary girder supporting legs 241 along the length direction of the primary girder supporting legs 241, thereby realizing the position fixing of the girder transporting machine 200 by using the telescopic girder supporting legs 240.

The telescopic girder transporting support leg 240 further comprises a girder transporting support leg cross beam 243, the girder transporting support leg cross beam 243 is used for connecting the first-level girder transporting support leg 241 with the girder transporting main beam 210, the girder transporting support leg cross beam 243 is horizontally arranged and connected with the girder transporting main beam 210, and the first-level girder transporting support leg 241 is fixed at two ends of the girder transporting support leg cross beam 243.

The middle point of the beam transporting support leg cross beam 243 is fixed on the beam transporting main beam 210, the beam transporting support leg cross beam 243 is perpendicular to the beam transporting main beam 210, two ends of the beam transporting support leg cross beam 243 are respectively connected with the first-level beam transporting support legs 241, and the first-level beam transporting support legs 241 are respectively perpendicular to the beam transporting support leg cross beam 243. The second-stage girder transporting support legs 242 penetrate through the first-stage girder transporting support legs 241, the second-stage girder transporting support legs 242 are connected with the girder transporting support legs through hydraulic oil cylinders, and the second-stage girder transporting support legs 242 are controlled to move along the length direction of the first-stage girder transporting support legs 241.

The telescopic leg 240 further includes a leg connecting system 244, and the leg connecting system 244 is a tripod structure and is respectively and fixedly connected to the first-stage girder leg 241, the second-stage girder leg 242, and the girder leg cross member 243. The beam leg connection system functions to support and secure the primary girder leg 241, the secondary girder leg 242, and the girder leg cross member 243.

The telescopic girder transport leg 240 further comprises a girder transport spherical hinge base 245, and the girder transport spherical hinge base 245 is fixed at the bottom of the secondary girder transport leg 242.

The embodiment of the utility model provides an in, because telescopic fortune roof beam landing leg 240 can extend or shorten along its length direction, preceding roof beam landing leg 120 and well nose beam landing leg 130 can remove along the length direction of nose beam girder 110, the length direction upset of nose beam girder 110 can be followed to back nose beam landing leg 140, therefore, telescopic fortune roof beam landing leg 240, preceding roof beam landing leg 120, well nose beam landing leg 130 and back nose beam landing leg 140 can cooperate to realize that nose beam machine 100 removes between each pier of waiting to erect, only can realize through fortune roof beam machine 200 and nose beam machine 100 that nose beam machine 100 removes between each pier of waiting to erect, it makes nose beam machine 100 remove to erect the beam station to need not to increase auxiliary assembly.

In order to enable the telescopic transporting beam supporting leg 240 to adapt to the ramp, in the embodiment of the present invention, the top end of the telescopic transporting beam supporting leg 240 is rotatably connected with the transporting beam main beam 210, so that the telescopic transporting beam supporting leg 240 swings along the length direction of the transporting beam main beam 210 below the transporting beam main beam 210. And a beam inclined support beam 246 is arranged between the telescopic beam support leg 240 and the beam main beam 210.

In an embodiment of the present invention, the transportation beam supporting beam 246 is fixedly connected to the transportation beam main beam 210, the transportation beam supporting beam 246 is hinged to the telescopic transportation beam supporting leg 240, and the transportation beam supporting beam 246 can be extended and retracted along the length direction thereof to change the angle between the telescopic transportation beam supporting leg 240 and the transportation beam main beam 210. Specifically, the bottom end of the beam transporting inclined support beam 246 is hinged to the lower end of the secondary beam transporting support leg 242, the beam transporting inclined support beam 246 is fixedly connected with the beam transporting main beam 210 through a beam transporting inclined hydraulic cylinder, and the hydraulic cylinder can drive the beam transporting inclined support beam 246 to perform telescopic movement, so that the angle between the telescopic beam transporting support leg 240 and the beam transporting main beam 210 can be changed.

In another embodiment of the present invention, one end of the beam supporting diagonal beam 246 is hinged to the beam main beam 210, a plurality of connection points are provided on the telescopic beam supporting leg 240, and the other end of the beam supporting diagonal beam 246 can be connected to different connection points to change the angle between the telescopic beam supporting leg 240 and the beam main beam 210. Specifically, the primary girder supporting leg 241 and the secondary girder supporting leg 242 of the telescopic girder supporting leg 240 are provided with a plurality of connection points along the length direction thereof, and the girder tilting supporting beam 246 is connected with different connection points so as to change the angle between the telescopic girder supporting leg 240 and the girder 210. Wherein, the connection point may be a slot, and the cross beam support beam 246 is inserted into the slot to connect with different slots.

As shown in fig. 13, the girder transporting machine 200 further includes a trolley attachment mechanism 250, and the trolley attachment mechanism 250 is fixed to the lower surface of the girder main beam 210 and is located between the front trolley system and the telescopic girder legs 240 for connecting with a trolley of the girder guide machine 100 to transport and fix the position of the girder guide machine 100. Specifically, the trolley connecting mechanism 250 includes a trolley connecting portion 251 and a girder connecting portion 252, the trolley connecting portion 251 is connected to the trolley suspending mechanism 154, and the girder connecting portion 252 connects the trolley connecting portion 251 to the girder 210. The girder connecting portion 252 is fixed to the bottom of the girder 210, and specifically, the girder connecting portion 252 may be connected to the girder 210 by a girder connecting hydraulic cylinder and may perform a telescopic motion in a vertical direction. The trolley connecting part 251 is movably disposed at the bottom of the girder connecting part 252, and specifically, the trolley connecting part 251 may be connected to the girder connecting part 252 by a trolley connecting hydraulic cylinder and may be movable in the length direction of the girder 210. Therefore, the girder connecting part 252 can move the trolley connecting part 251 up and down to adjust the height of the trolley connecting part 251, and the trolley connecting part 251 can move back and forth along the girder 210 to connect or disconnect with the multi-function trolley 150.

In the following, referring to fig. 17-23, taking the girder erection station 320 for girder erection at the position close to the tunnel exit as an example, a method for erecting a girder at a low position by an all-in-one transportation and erection machine of a girder guide machine using a convenient low position girder erection according to an embodiment of the present invention is described.

The method for erecting the box girder at the low station by using the beam guide machine 100 to assist the beam transport machine 200 comprises the following steps:

and S1, mounting the beam guide machine 100 on the beam erecting station 320, and adjusting the height of the main beam 110 of the beam guide machine 100 to enable the beam guide machine 100 to be in a low position. As shown in fig. 17, the front girder leg 120 of the girder guide 100 is supported on a third pier 340 to be erected near the girder conveyor 200, the middle lower section unit of the middle girder leg 130 of the girder guide 100 and the rear lower section column 143 of the rear girder leg 140 are respectively turned over toward the girder 110 and horizontally arranged, the bottom end of the middle section column 133 of the middle girder leg 130 and the bottom end of the rear sliding section 142 are respectively supported on a second pier 330 to be erected near the girder conveyor 200 and a first pier 350 to be erected near the girder conveyor 200, and the rear end of the trolley support is attached to the front end of the bridge deck. In order to make the top of the support platform 153 flush with the deck 310 on which the girder transporting machine 200 is mounted, and to facilitate the movement of the forward traveling system 220 of the girder transporting machine 200, a trolley support is placed on the support platform 153 of the multifunctional trolley 150 of the girder guide machine 100.

S2, the front traveling system 220 of the girder transporting machine 200 moves to the supporting platform 153 of the multifunctional trolley 150 of the girder guiding machine 100, and a trolley supporting frame is arranged between the supporting platform 153 and the front trolley system, as shown in fig. 18.

S3, the multi-function trolley 150 drives the girder transporting machine 200 to move forward along the main girder 110, so that the box girder suspended by the girder transporting machine 200 is located at the girder falling station, and the telescopic girder transporting legs 240 of the girder transporting machine 200 are supported on the second pier 330 to be erected near the bridge floor, as shown in fig. 10. Wherein the beam falling station is located above the beam erecting station 320.

S4, driving the main girder 110 to move so that the front end of the main girder 110 is located above the fourth pier to be erected near the bridge floor, as shown in fig. 20, in the process, the rear sliding joints 142 of the rear guide leg 140 are retracted upwards to prevent the rear guide leg 140 from influencing the movement of the main girder 110. Wherein, the multifunctional trolley 150 of the girder guide machine 100 drives the girder guide 110 to move along the length direction of the girder guide 110.

S5, the trolley connecting mechanism 250 of the girder transporting machine 200 is connected with the trolley suspension structure of the multi-function trolley 150, and the middle girder leg 130 of the girder guiding machine 100 moves forward and is supported on the third pier 340 to be erected, as shown in fig. 21. In this process, further, the method of moving the center girder leg 130 of the girder guide machine 100 forward and supporting on the third pier 340 to be erected includes: shortening the length of the center girder leg 130 away from the second pier 330 to be erected; the middle girder leg 130 moves forward along the girder 110 to above the third pier 340 to be erected; the center girder leg 130 is extended in length to be supported on the third pier 340 to be erected.

S6, the multi-function trolley 150 drives the main guide girder 110 to move, so that the rear end of the main guide girder 110 completely leaves the girder erection station 320, and the rear guide girder leg 140 of the main guide girder 110 is supported on the second pier 330 to be erected, as shown in fig. 22.

S7, the front girder leg 120 of the girder guide 100 moves forward and is supported on the fourth pier to be erected.

The method for moving the front girder leg 120 of the girder guide machine 100 forward and supporting the front girder leg on the fourth bridge pier to be erected includes: shortening the length of the front guide beam leg 120 to leave the third pier 340 to be erected; the front girder leg 120 moves forward along the girder 110 to a position above the fourth pier to be erected; the front girder leg 120 is extended in length to be supported on a fourth pier to be erected.

S8, as shown in fig. 23, the girder transporting machine 200 lowers the box girder so that the box girder is erected at the girder erecting station 320.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a make things convenient for nose girder machine of low level frame roof beam which characterized in that:

the multifunctional trolley comprises a guide beam main beam, a guide beam supporting leg, a middle guide beam supporting leg, a rear guide beam supporting leg and a multifunctional trolley; the front guide beam support leg, the middle guide beam support leg, the rear guide beam support leg and the multifunctional trolley are respectively arranged on the guide beam main beam; supporting platforms are arranged on two sides of the multifunctional trolley; wherein,

the front guide beam supporting leg, the middle guide beam supporting leg and the rear guide beam supporting leg can drive the guide beam main beam and the multifunctional trolley to synchronously do lifting motion so that the guide beam main beam and the multifunctional trolley are positioned at a high position station or a low position station;

when the guide beam main beam and the multifunctional trolley are positioned at the low station, a trolley support frame is arranged on the support platform.

2. The machine for facilitating the lowering of a girder according to claim 1, wherein: the multifunctional trolley is movably arranged on the guide beam main beam, can move relative to the guide beam main beam along the length direction of the guide beam main beam and is used for driving the guide beam main beam to move or driving the beam transporting machine to move.

3. The machine of claim 2 for facilitating the guiding of the lower frame beam, wherein: the multifunctional trolley comprises a plurality of trolleys, the trolleys are respectively arranged along the length direction of the main beam of the guide beam and movably connected with the main beam of the guide beam, and the trolleys can move along the length direction of the main beam of the guide beam; every two adjacent trolleys are connected through a pin shaft.

4. The machine for facilitating the lowering of a girder according to claim 3, wherein: the multifunctional trolley also comprises an integral type frame, and the trolley is connected to the inner side of the top of the integral type frame through trolley lifting oil cylinders respectively, so that the integral type frame can ascend or descend in the vertical direction; the supporting platforms are arranged on two sides of the integral frame.

5. The machine for facilitating the lowering of a girder according to claim 1, wherein: the rear end of the guide beam main beam is provided with a jack support, and when the guide beam main beam is switched between a high-position station or a low-position station, the jack support can support a jack so as to be matched with the guide beam main beam to adjust the height.

6. The machine for facilitating the lowering of a girder according to claim 1, wherein: the front guide beam supporting leg comprises two upper and lower sliding columns, the upper and lower sliding columns are vertically arranged at two ends of the front guide beam supporting leg respectively, and the upper and lower sliding columns can slide along the vertical direction.

7. The machine for facilitating the lowering of a girder according to claim 1, wherein: the middle guide beam supporting leg comprises a middle lower section column, the middle lower section column is located at the bottom end of the middle guide beam supporting leg, and the middle lower section column can be overturned towards the bottom surface of the guide beam main beam.

8. The machine of claim 7 for facilitating the guiding of the lower frame beam, wherein: the middle guide beam supporting leg further comprises a middle and upper section column and a middle and middle section column, the middle and upper section column is connected with the guide beam main beam, the middle and middle section column can move relative to the middle and upper section column along the vertical direction, and the middle and lower section column is hinged with the bottom of the middle and middle section column.

9. The machine for facilitating the lowering of a girder according to claim 1, wherein: the rear guide beam supporting leg comprises a rear lower section column, the rear lower section column is located at the bottom end of the rear guide beam supporting leg, and the rear lower section column can overturn towards the bottom surface of the guide beam main beam.

10. The machine of claim 9 for facilitating the lowering of a girder, wherein: the rear guide beam supporting leg further comprises a rear fixed joint and a rear sliding joint; the rear fixed joint is connected with the main beam of the guide beam; the rear sliding joint is connected with the rear fixed joint in a sliding manner and can move relative to the rear fixed joint along the length direction of the rear fixed joint; the back lower section column is arranged at the bottom of the back sliding section and is rotationally connected with the back sliding section.