CN112064515A - A kind of box girder erection equipment, through-hole method and tunnel-through method - Google Patents

Abstract

The invention provides a box girder erection device, a method for passing a hole, and a method for passing a tunnel. The device for erecting a box girder includes a machine arm, an outrigger assembly, a hoisting assembly and a traveling assembly, and the outrigger assembly includes a front support A leg assembly and a middle outrigger assembly, the front outrigger assembly and the middle outrigger assembly are adapted to be slidably connected with the machine arm, and the front outrigger assembly is also adapted to be connected with a box girder and/or a bridge pier; A heavy assembly, which is movably arranged on the machine arm, is used for hoisting the box girder; the hoisting assembly is adapted to be connected with the middle outrigger assembly to drive the middle outrigger assembly on the machine arm moving upward; a traveling assembly is arranged at the lower end of the middle outrigger assembly, and the traveling assembly is suitable for driving the machine arm to move through the middle outrigger assembly. The box girder erection equipment of the present invention passes the hole in place at one time, and compared with the existing multiple legs to alternately change the support position, the reverse thruster arm is longitudinally moved through the hole, and the hole passing efficiency is higher and the safety is better.

Description

A kind of box girder erection equipment, through-hole method and tunnel-through method

technical field

The invention relates to the technical field of bridge erection, in particular, to a box girder erection device, a method for passing a hole and a method for passing a tunnel.

Background technique

At present, the bridge erecting machine includes a machine arm and several outriggers, which realize support and through holes through multiple outriggers. In terms of construction procedures, most bridge erecting machines use multiple outriggers to alternately switch the support position, and the thrust reverser The arm is longitudinally moved through the hole, the legs are not anchored, and the second longitudinal movement is required when the variable span beam is passed through the hole, which is inefficient and has hidden dangers.

SUMMARY OF THE INVENTION

The problem solved by the present invention is how to improve the efficiency and safety of the via hole.

In order to solve the above problems, the present invention provides a box girder erection equipment, including:

arm,

An outrigger assembly, which includes a front outrigger assembly and a middle outrigger assembly, the front outrigger assembly and the middle outrigger assembly are adapted to be slidably connected with the machine arm, and the front outrigger assembly is also adapted to be connected with the machine arm Box girder and/or pier connections;

A hoisting assembly, which is movably arranged on the machine arm, is used for hoisting the box girder; the hoisting assembly is adapted to be connected with the middle outrigger assembly to drive the middle outrigger assembly on the machine move on the arm;

A traveling assembly is disposed at the lower end of the middle outrigger assembly, and the traveling assembly is adapted to drive the machine arm to move through the middle outrigger assembly.

Optionally, the middle outrigger assembly is adapted to rotate relative to the machine arm around a vertical axis to adjust the vertical distance of the middle outrigger assembly in the width direction of the machine arm.

Optionally, the middle outrigger assembly includes a first lower beam, the running assembly includes a frame, a wheel and a power device, the frame is movably connected to the first lower beam, and the wheel is mounted on the On the frame, the power device is mounted on the frame and is drivingly connected with the wheel.

Optionally, the hoisting assembly includes a front hoist trolley and a rear hoist trolley, the front hoist trolley and the rear hoist trolley are movably arranged on the machine arm, and the front hoist trolley And/or the rear trolley is adapted to be connected with the middle outrigger assembly to drive the middle outrigger assembly to move on the boom.

Optionally, the middle outrigger assembly includes a suspension assembly on which an oil cylinder pin is installed, a pin support is installed on the front trolley or the rear hoist, and the oil cylinder pin is installed on the front trolley or the rear trolley. It is suitable for being plugged with the plug support.

Optionally, the outrigger assembly further includes an auxiliary outrigger assembly and a rear outrigger assembly, and along the length direction of the machine arm, the auxiliary outrigger assembly, the front outrigger assembly, the middle outrigger The leg assemblies and the rear outrigger assemblies are arranged in sequence; the auxiliary outrigger assemblies, the front outrigger assemblies, the middle outrigger assemblies and the rear outrigger assemblies are adapted to be extended and retracted to adjust their own heights, and the The front leg assembly and the auxiliary leg assembly are adapted to slide along the boom, and the rear leg assembly is adapted to be folded relative to the boom.

Optionally, the auxiliary leg assembly includes a second lower beam and a support top, the second lower beam is provided with at least three installation positions, and the two support tops are respectively suitable for being installed at the two installation positions. .

Optionally, the rear outrigger assembly includes a third lower beam, and both ends of the third lower beam are adapted to expand and contract to adjust the length of the third lower beam.

Optionally, the front leg assembly includes a front leg and an anchor assembly, a part of the anchor assembly is slidably connected to the leg, and another part of the anchor assembly is adapted to be connected to the box girder.

Another object of the present invention is to provide a through-hole method for box girder erection equipment, using the above box girder erection device, comprising the following steps:

Step 1. After the box girder erection device erects a hole box girder, the front leg assembly of the box girder erection device is fixed to the box girder and/or the bridge pier, and the rear leg assembly of the box girder erection device is supported on the box girder. on the beam;

Step 2. The middle outrigger assembly of the box girder erecting equipment is vacated, and the middle outrigger assembly is connected to the hoisting assembly of the box girder erecting device, and the hoisting assembly drives the middle outrigger assembly in the air. The arm of the box girder erecting equipment moves toward the rear outrigger assembly until the support position, the middle outrigger assembly is supported on the box girder, and the rear outrigger assembly is vacated;

Step 3, the middle outrigger assembly drives the machine arm to move to the via position, the auxiliary outrigger assembly of the box girder erection equipment is supported on the bridge pier, and the rear outrigger assembly is supported on the box girder;

Step 4. The middle outrigger assembly is vacated, and the middle outrigger assembly is connected to the hoisting assembly, and the hoisting assembly drives the middle outrigger assembly on the machine arm toward the front support The leg assembly moves to the support position, and the middle outrigger assembly is supported on the box beam;

Step 5. The front outrigger assembly is released from the box girder and/or the bridge pier, and the front outrigger assembly moves toward the auxiliary outrigger assembly on the machine arm to a supporting position, and the front outrigger assembly supports on the bridge pier;

Step 6. The rear outrigger assembly is folded and folded, and the box girder erection equipment is used to erect the next hole box girder.

Another object of the present invention is to provide a method for crossing the tunnel of the box girder erection equipment, using the above box girder erection equipment, comprising the following steps:

Step a. After installing the bracket, the beam transport vehicle drives into the bottom of the box girder erection equipment, and the rear outrigger assembly of the box girder erection device is folded and supported on the box girder;

In step b, the front outrigger assembly of the box girder erection equipment and the auxiliary leg assembly of the box girder erection device are moved to a designated position on the arm of the box girder erection device; The outrigger assembly is vacated, and the middle outrigger assembly is connected to the hoisting assembly of the box girder erection equipment, and the hoisting assembly drives the middle outrigger assembly on the machine arm toward the front outrigger The component moves to the specified position;

Step c, the beam transporter is moved to the piggyback position, the middle outrigger assembly and the rear outrigger assembly are alternately lowered to the piggyback height, and the machine arm is supported on the bracket;

In step d, the middle outrigger assembly is rotated to the tunnel-passing position, the auxiliary outrigger assembly, the front outrigger assembly and the rear outrigger assembly are vacated, and the beam transporter drives the box girder erection equipment to pass through. tunnel.

Compared with the prior art, the present invention has the following beneficial effects: when the box girder erection equipment needs to pass through holes, the front outrigger assembly is connected with the box girder and/or the bridge pier, so as to stably support the machine arm; The middle outrigger assembly is connected to drive the middle outrigger assembly to move on the machine arm; after moving in place, the machine arm and the middle outrigger assembly are fixed, and at this time, the traveling assembly drives the box girder erection equipment to move through the middle outrigger assembly , so that the box girder erection equipment can pass the hole in place at one time. Compared with the existing multiple outriggers to alternately switch the support position, the reverse thruster arm longitudinally moves through the hole, which has higher efficiency and better safety.

Description of drawings

1 is a schematic structural diagram of a box girder erection device according to an embodiment of the present invention;

Fig. 2 is the assembly schematic diagram of the middle outrigger assembly, the machine arm and the front lifting trolley according to the embodiment of the present invention;

Fig. 3 is the assembly schematic diagram of the walking assembly and the middle outrigger assembly according to the embodiment of the present invention;

4 is a schematic structural diagram of a rear outrigger assembly according to an embodiment of the present invention;

5 is a schematic diagram of another use state of the rear outrigger assembly according to the embodiment of the present invention;

6 is a schematic structural diagram of a front outrigger assembly according to an embodiment of the present invention;

7 is a schematic structural diagram of an auxiliary leg assembly according to an embodiment of the present invention;

8 is a schematic diagram of another use state of the auxiliary leg assembly according to the embodiment of the present invention;

FIG. 9 is an embodiment corresponding to step 1 in the via hole method of the box girder erection equipment according to the embodiment of the present invention;

Fig. 10 is an embodiment corresponding to step 2 in the via hole method of the box girder erecting equipment according to the embodiment of the present invention;

FIG. 11 is another embodiment corresponding to step 2 in the via hole method of the box girder erecting equipment according to the embodiment of the present invention;

12 is another embodiment corresponding to step 2 in the via hole method for the box girder erection equipment according to the embodiment of the present invention;

FIG. 13 is an embodiment corresponding to step 3 in the via hole method of the box girder erection equipment according to the embodiment of the present invention;

FIG. 14 is an embodiment corresponding to step 4 in the via hole method of the box girder erection equipment according to the embodiment of the present invention;

FIG. 15 is an embodiment corresponding to step 5 in the via hole method of the box girder erection equipment according to the embodiment of the present invention;

FIG. 16 is an embodiment corresponding to step 6 in the via hole method of the box girder erection equipment according to the embodiment of the present invention;

17 is an embodiment corresponding to step a in the tunnel crossing method of the box girder erection equipment according to the embodiment of the present invention;

18 is an embodiment corresponding to step b in the tunnel crossing method of the box girder erection equipment according to the embodiment of the present invention;

19 is an embodiment corresponding to step c in the tunnel crossing method of the box girder erection equipment according to the embodiment of the present invention;

20 is an embodiment corresponding to step c in the tunnel crossing method of the box girder erection equipment according to the embodiment of the present invention;

FIG. 21 is an embodiment corresponding to step d in the tunnel crossing method of the box girder erection equipment according to the embodiment of the present invention.

Description of reference numbers:

1-arm, 2-front outrigger assembly, 3-auxiliary outrigger assembly, 4-middle outrigger assembly, 5-travel assembly, 6-lifting assembly, 7-rear outrigger assembly, 8-bracket, 9- beam transporter;

21-Hanging assembly, 22-Front outrigger, 23-Anchor assembly, 24-Third telescopic cylinder, 31-Second lower beam, 32-Support top, 33-Auxiliary outrigger, 34-Fourth telescopic cylinder , 35-displacement telescopic cylinder, 41-suspension assembly, 42-first upper beam, 43-middle outrigger, 44-first lower beam, 45-tilt rod, 46-first drive device, 51-frame, 52-wheel, 53-power unit, 61-front lifting trolley, 62-rear lifting trolley, 63-pin support, 71-third lower beam, 72-second telescopic cylinder, 73-rear outrigger, 74 - Folding oil cylinder, 91-rear beam transporter, 92-front beam transporter;

231-Sliding sleeve, 232-Steering rod, 233-Connecting rod, 411-Cylinder pin.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by "up", "down", "left", "right", etc. herein are based on the orientations or positional relationships shown in the accompanying drawings of the specification, It is only for the convenience of describing the present invention and simplifying the description, not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in FIG. 1 , an embodiment of the present invention provides a box girder erection device, including a machine arm 1 , an outrigger assembly, a hoisting assembly 6 and a traveling assembly 5 , and the outrigger assembly includes a front outrigger assembly 2 and a middle outrigger assembly 4, the front outrigger assembly 2 and the middle outrigger assembly 4 are suitable for sliding connection with the machine arm 1, and the front outrigger assembly 2 is also suitable for connection with the box girder and/or The bridge pier is connected; the lifting assembly 6 is movably arranged on the machine arm 1 for lifting the box girder; the lifting assembly 6 is suitable for connecting with the middle outrigger assembly 4 to drive the middle The outrigger assembly 4 moves on the machine arm 1 ; the travel assembly 5 is arranged at the lower end of the middle outrigger assembly 4 , and the travel assembly 5 is suitable for driving the machine arm through the middle outrigger assembly 4 1 move.

After using the box girder erection equipment of the present embodiment, the front outrigger assembly 2 is connected to the box girder and/or the bridge pier when the hole needs to be carried out, so as to stably support the machine arm 1; The middle outrigger assembly 4 is connected to drive the middle outrigger assembly 4 to move on the machine arm 1; after moving in place, the machine arm 1 and the middle outrigger assembly 4 are fixed, at this time, the traveling assembly 5 is driven by the middle outrigger assembly 4 The box girder erection equipment is moved, so that the box girder erection equipment can pass the hole in place at one time. Compared with the existing multiple outriggers to alternately switch the supporting position, the reverse thruster arm 1 is moved longitudinally through the hole, which has higher through hole efficiency and Security is better.

In this embodiment, the machine arm 1 adopts a single-beam structure, which can be either a whole structure or a multi-section assembled structure. For the convenience of transportation, it is preferable that the machine arm 1 adopts a multi-section structure. The structural form of segment assembly, and the adjacent segments are connected by high-strength bolts. Therefore, the machine arm 1 adopts a single beam structure, which can effectively shorten the distance in the longitudinal direction of the whole machine, so as to better adapt to various narrow erection conditions and meet the needs of single and double line erection. At the same time, the machine arm 1 is a box girder structure, and its two end faces in the width direction are each provided with two track plates. In the up-down direction, the two track plates are symmetrically arranged on the same end surface, and the The track plates are arranged symmetrically. Therefore, in the structural design of the track plates, the machine arm 1 forms a guide rail in the upper and lower directions, which is convenient for the machine arm 1 to be connected with the outrigger assembly and the lifting assembly 6. 1 on the swipe.

Optionally, the middle outrigger assembly 4 is adapted to rotate in a vertical direction relative to the machine arm 1 to adjust the vertical distance of the middle outrigger assembly 4 in the width direction of the machine arm 1 .

In this embodiment, as shown in FIG. 2 , the middle outrigger assembly 4 includes a first upper beam 42 , a suspension assembly 41 , a middle outrigger 43 and a first lower beam 44 , and the upper half of the suspension assembly 41 is hung on the On the first upper beam 42, the first upper beam 42 can rotate around the suspension assembly 41, the lower half of the suspension assembly 41 is slidably connected with the arm 1, and the two ends of the first upper beam 42 in the length direction are respectively connected with a middle support. The legs 43 are connected, the first lower beam 44 is arranged between the two middle outriggers 43 and is connected with the two middle outriggers 43 respectively, and the traveling assembly 5 is arranged at the lower end of the first lower beam 44, whereby the machine arm 1 passes through After the front outrigger assembly 2 etc. are supported, when the middle outrigger assembly 4 needs to be rotated, the first upper beam 42 rotates around the suspension assembly 41, thereby changing the width of the middle outrigger assembly 4 in the width direction of the machine arm 1. vertical distance.

In this embodiment, the vertical distance of the middle outrigger assembly 4 in the width direction of the machine arm 1 refers to: on a vertical plane parallel to the width direction of the machine arm 1, the projected length of the first upper beam 42 on the vertical plane .

In this embodiment, the middle outrigger assembly 4 further includes a first driving device 46, the first driving device 46 is an oil cylinder or an air cylinder, the fixed end of the first driving device 46 is connected to the upper beam, and the first driving device 46 The telescopic end is connected with the suspension assembly 41, the first upper beam 42 is provided with a slideway running through the vertical direction, and the first driving device 46 is suitable for driving the suspension assembly 41 to move longitudinally along the slideway, so as to adjust the first The relative position of the upper beam 42 and the machine arm 1 is suitable for different erection conditions.

In this embodiment, the middle outrigger assembly 4 further includes an oblique stay rod 45, one end of the oblique stay rod 45 is connected with the middle outrigger 43, and the other end is connected with the first lower beam 44, so that under the action of the diagonal stay rod 45, It can enhance the structural strength at the connection between the middle outrigger 43 and the first lower beam 44 , and reduce the occurrence of breakage of the middle leg 43 or the lower beam when the middle outrigger 43 or the lower beam is under stress.

In this embodiment, both ends of the first upper beam 42 are provided with first installation positions for installing the middle outriggers 43 , and the lower end of the first upper beam 42 is further provided with two second installation positions for installing the middle outriggers 43 When the middle legs 43 are installed at the two first installation positions, the distance between them is greater than the distance between the middle legs 43 when installed at the two second installation positions. Therefore, when it is necessary to meet the erection of the double-line box girder, the middle outriggers 43 are installed in the first installation position, and the first lower beam 44 that meets the size requirements is fitted; when the erection of the single-line box girder needs to be satisfied, the second installation position is installed The middle leg 43 is adapted to the first lower beam 44 that meets the size requirements.

Optionally, as shown in FIG. 3 , the running assembly 5 includes a frame 51 , wheels 52 and a power unit 53 , the frame 51 is movably connected with the lower beam, and the wheels 52 are mounted on the frame 51 , the power unit 53 is mounted on the frame 51 and is drivingly connected with the wheels 52 .

In this embodiment, the number of the running components 5 is not limited, and may be one, two, or three, etc., which can be selected according to actual needs. As shown in FIG. 2 , there are two running assemblies 5 , and the two running assemblies 5 are symmetrically arranged at both ends of the lower beam in the length direction. Therefore, under the action of the two running assemblies 5 , the running of the middle outrigger assembly 4 can be realized.

In this embodiment, the frame 51 is U-shaped as a whole, and a groove structure is formed in the middle of the frame 51. The groove structure is suitable for the first lower beam 44 to extend into. The two ends of the frame 51 are respectively provided with a rotatable The wheel 52 is installed on the installation frame, and the power unit 53 is installed on the installation frame and is drivingly connected with the wheel 52, thereby reducing the height of the connection position of the first lower beam 44 and the frame 51, which is convenient for the walking assembly Stable running on the box girder.

In this embodiment, the frame 51 and the first lower beam 44 are connected by a cross hinge structure. The cross hinge structure includes a block body. The block body is provided with a longitudinal through hole and a transverse through hole with a height difference. There is a placement slot with an open lower end, a part of the block body provided with a lateral through hole is located in the placement slot, and the lateral through hole is connected with the first lower beam 44 by a pin, and the block body is provided with another part of the longitudinal through hole extends out of the placement slot. , and the longitudinal through hole is connected with the frame 51 through a pin. Therefore, under the action of the cross hinge structure, the longitudinal and lateral yaw of the running assembly 5 can be realized, so as to ensure that the wheel 52 is evenly stressed, thereby improving the efficiency of the via hole and the safety of the via hole.

Optionally, the hoisting assembly 6 includes a front hoist trolley 61 and a rear hoist trolley 62, and the front hoist trolley 61 and the rear hoist trolley 62 are movably arranged on the machine arm 1, The front hoist trolley 61 and/or the rear hoist trolley 62 are adapted to be connected with the middle outrigger assembly 4 to drive the middle outrigger assembly 4 to move on the machine arm 1 .

In this embodiment, the movement of the middle outrigger assembly 4 on the machine arm 1 is realized by the hoisting assembly 6. Since the hoisting assembly 6 includes a front hoisting trolley 61 and a rear hoisting trolley 62, there are the following Situation: the front trolley 61 is connected with the middle outrigger assembly 4 to drive the middle outrigger assembly 4 to move on the machine arm 1; or, the rear trolley 62 is connected with the middle outrigger assembly 4 to drive the middle outrigger assembly 4 Move on the machine arm 1 ; alternatively, both the front trolley 61 and the rear hoist trolley 62 can be connected with the middle outrigger assembly 4 to drive the middle outrigger assembly 4 to move on the machine arm 1 .

Optionally, the middle outrigger assembly 4 includes a suspension assembly 41 on which an oil cylinder bolt 411 is installed, and a bolt support 63 is installed on the front trolley 61 or the rear hoist trolley 62 , the cylinder plug 411 is suitable for being plugged with the plug support 63 .

In this embodiment, both the front trolley 61 and the rear trolley 62 are hung at the lower end of the machine arm 1, and the machine arm 1 is hung at the lower end of the suspension assembly 41 of the middle outrigger assembly 4, so that the middle support The structure of the leg assembly 4 can avoid interfering with the front trolley 61 and the rear trolley 62 sliding on the machine arm 1 , the front trolley 61 and/or the rear trolley 62 running to the suspension assembly of the middle outrigger assembly 4 41, the cylinder latch 411 and the latch support 63 are aligned up and down, the cylinder latch 411 works to extend into the latch support 63, when the front trolley 61 and/or the rear trolley 62 continue to move along the arm 1 , it will drive the middle outrigger assembly 4 to move along the machine arm 1 together, thereby changing the position of the middle outrigger 43 assembly on the machine arm 1 .

Optionally, the outrigger assembly further includes an auxiliary outrigger assembly 3 and a rear outrigger assembly 7. Along the length direction of the machine arm 1, the auxiliary outrigger assembly 3 and the front outrigger assembly 2 , the middle outrigger assembly 4 and the rear outrigger assembly 7 are arranged in sequence; the auxiliary outrigger assembly 3, the front outrigger assembly 2, the middle outrigger assembly 4 and the rear outrigger assembly 7 It is suitable for telescopic to adjust its height, the front outrigger assembly 2 and the auxiliary outrigger assembly 3 are suitable for sliding along the machine arm 1, and the rear outrigger assembly 7 is suitable for relative to the machine arm 1 fold.

In this embodiment, the middle outrigger 43 is extended up and down through the first telescopic oil cylinder, and locked by a bolt. As shown in Fig. 4(a), the rear outrigger 73 includes two parts that are sleeved together. The second telescopic cylinder 73 realizes up and down expansion and contraction, and is locked by a latch. At the same time, as shown in Fig. 4(b), the rear The outrigger is hinged with the machine arm 1, and is folded by the folding oil cylinder 74. As shown in Figures 6(a) and 6(b), the front outrigger assembly 2 is slidably connected to the machine arm 1 through the hanging assembly 21, and the front outrigger 22 also includes two parts that are sleeved together. The oil cylinder 24 realizes up and down expansion and contraction, and is locked by a latch. As shown in Fig. 7(b), the auxiliary outrigger assembly 3 includes a displacement telescopic oil cylinder 35 to realize the sliding of the auxiliary outrigger assembly on the machine arm. As shown in Fig. 7(a), the auxiliary outrigger 33 also includes a socket connection The two parts that are together are stretched up and down through the fourth telescopic oil cylinder 34 and locked by a bolt.

In this embodiment, after the front outrigger assembly 2, the auxiliary outrigger assembly 3 and the middle outrigger assembly 4 are slid in place on the machine arm 1, they are fixedly connected to the machine arm 1 through the latch assembly; when sliding is required, the corresponding The plug assembly can be used. Therefore, the firmness between the three and the machine arm 1 is facilitated, and the construction safety is facilitated.

Optionally, the auxiliary leg assembly 3 includes a second lower beam 31 and a support top 32, the second lower beam 31 is provided with at least three installation positions, and the two support tops 32 are respectively suitable for being installed on two mounting locations.

In this embodiment, the support top 32 is a support oil cylinder, which is connected or inserted at the installation position through high-strength bolts. As shown in Figures 7 and 8, in the length direction of the second lower beam 31, there are four installation positions, and the two outer installation positions constitute the first installation position, which is used to support the box girder when the double-line box girder is erected. , and the two installation positions on the inner side constitute the second installation position, which is used to support the box girder when the single-line box girder is erected. 7(a) and 7(b) are the supporting positions of the support top 32 at the second lower beam 31 when the double-line box girder is erected; Support position at 31. Therefore, the change of the position of the support roof 32 can meet the requirements of single-line and double-line erection, and ensure the safety of construction.

Optionally, the rear outrigger assembly 7 includes a third lower beam 71 , and both ends of the third lower beam 71 are adapted to expand and contract to adjust the length of the third lower beam 71 .

In this embodiment, the third lower beam 71 includes a fixed section and a telescopic section, two ends of the fixed section are provided with a groove structure, an oil cylinder is arranged in the groove structure, and one end of the telescopic section extends into the groove structure and is connected with the push rod of the oil cylinder Therefore, the oil cylinder works, and the expansion and retraction of the telescopic section into the groove structure can be realized, thereby realizing the extension and shortening of the third lower beam 71 . That is, as shown in FIG. 4( a ), when the third lower beam 71 is extended, it is used to support the double-line box girder; as shown in FIG. 5 , when the third lower beam 71 is shortened, it is used to support the single-line box beam.

Optionally, the front leg assembly 2 includes a front leg 22 and an anchor assembly 23, a part of the anchor assembly 23 is slidably connected with the leg, and another part of the anchor assembly 23 is adapted to Box girder connection.

In this embodiment, the anchoring assembly 23 includes a sliding sleeve 231, a steering rod 232 and a connecting rod 233. The sliding sleeve 231 is sleeved on the front outrigger 22 and is suitable for being fixed on the front outrigger 22 through a pin. The steering rod One end of 232 is hinged with the sliding sleeve 231, the other end of the steering rod 232 is hinged with the connecting rod 233, and the lower end of the connecting rod 233 is suitable for being inserted into the connecting hole of the box beam. Therefore, during the through-hole operation, the front outrigger assembly 2 needs to be fixed with the box beam to support the movement of the machine arm 1. At this time, the anchoring between the sliding sleeve 231 and the front outrigger 22 is first released, and then the sliding sleeve is slid downward. 231 thereby drives the connecting rod 233 to move down until the connecting rod 233 can be inserted into the connecting hole of the box girder, and finally adjust the position of the sliding sleeve 231 and the front leg 22, and fix the front leg 22 and the sliding sleeve 231 together by the bolt.

When the box girder erection equipment is in use, it is usually combined with the beam transport vehicle 9 to form a frame transport device. There are many forms of the beam transport vehicle 9. It can be a single beam transport vehicle, and the position of the box beam can be realized by two load-carrying trolleys. The adjustment is convenient for the front lifting trolley 61 and the rear lifting trolley 62 to lift the box beam; it can also be a split beam transporter, when the beam transporter 9 is a split beam transporter, it includes the front beam transporter 92 and The rear beam transporting vehicle 91, wherein one of the front beam transporting vehicle 92 and the rear beam transporting vehicle 91 has a wheel set with its own power and can walk independently; There is a piggyback trolley, thereby realizing the adjustment of the position of the box girder, which is convenient for the front lifting trolley 61 and the rear lifting trolley 62 to lift the box girder.

In this embodiment, when a single beam transporter is used, the beam transporter 9 runs below the box girder erection equipment. Move the girder forward synchronously, so that the position of the rear suspension point of the box girder is closer to the middle outrigger assembly 4 . The cost of the split beam transporter is much lower than that of the single beam transporter. However, since the front beam transporter 92 and the rear beam transporter 91 are close together, the position of the rear lifting point of the box girder is far from the middle outrigger assembly 4 . Therefore, before the rear hoisting trolley 62 takes the beam, the rear outrigger assembly 7 needs to be stepped on the beam transporting vehicle 9, so as to avoid the possibility of the bridge erecting machine from overturning backward due to insufficient stability.

In this embodiment, the body of the beam transporting vehicle 9 has two types of wheel set installation positions, the narrow type and the wide type, respectively to adapt to the erection conditions of the single-line box girder and the double-line box girder. Meanwhile, in this embodiment, the machine arm 1 adopts the structure form of a single beam. The auxiliary outrigger assembly 3 , the middle outrigger assembly 4 and the rear outrigger assembly 7 can meet the erection requirements of single- and double-line box beams through their respective deformations, that is, the second lower beam 31 of the auxiliary outrigger assembly 3 passes through two The position change of the support top 32 satisfies the erection of single- and double-line box girder; the middle outrigger assembly 4 satisfies the erection of the single- and double-line box girder by changing the position of the two middle outriggers 43 and replacing a suitable first lower beam 44, The third lower beam 71 of the rear outrigger assembly 7 can meet the erection of single-line and double-line box girder through expansion and contraction. Therefore, the box girder erection equipment of the present embodiment and the frame transporting equipment composed of the beam transporting vehicle 9 are used for two purposes, which solves the problem of double-line and single-line box girder erection for passenger transportation at a speed of 250 kilometers per hour, especially in the mountainous areas of the southwest region. Requirements for double-track tunnels and tunnel exit beams.

The box girder erection equipment includes the following steps when erecting the box girder:

Step 1, the box girder erection equipment is moved to the erection position, and the beam transport vehicle 9 transports the box girder into the lower part of the box girder erection device;

Step 2, the beam transporter 9 adjusts the position of the box beam until the box beam is located at the beam-taking position of the front hoisting trolley 61; position until the box girder is located at the beam taking position of the rear hoist trolley 62;

Step 3. The rear outrigger assembly 7 is supported on the beam transporter 9. After the rear lifting trolley 62 takes the beam, the front lifting trolley 61 and the rear lifting trolley 62 lift the box beam to the beam drop position and drop the beam to complete a step. Erection of hole box girder.

Another object of the present invention is to provide a through-hole method for box girder erection equipment, using the above box girder erection device, comprising the following steps:

Step 1. As shown in FIG. 9, after the box girder erection equipment erects a hole box girder, the front leg assembly 2 of the box girder erection device is fixed with the box girder and/or the bridge pier, and the box girder erection device is The rear outrigger assembly 7 is supported on the box beam;

Step 2. As shown in Figures 10-12, the middle outrigger assembly 4 of the box girder erection equipment is vacated, and the middle outrigger leg assembly 4 is connected to the hoisting assembly 6 of the box girder erection device. The heavy assembly 6 drives the middle outrigger assembly 4 to move toward the rear outrigger assembly 7 on the arm 1 of the box girder erection equipment until the supporting position, and the middle outrigger assembly 4 is supported on the box girder, The rear outrigger assembly 7 is vacated;

Step 3. As shown in Figure 13, the middle outrigger assembly 4 drives the whole machine to move to the position of the via hole, the auxiliary outrigger assembly 3 of the box girder erection equipment is supported on the bridge pier, and the rear outrigger assembly 7 is supported on the box girder;

Step 4. As shown in FIG. 14 , the middle outrigger assembly 4 is vacated, the middle outrigger assembly 4 is connected with the lifting assembly 6 , and the lifting assembly 6 drives the middle outrigger assembly 4 Move toward the front outrigger assembly 2 on the machine arm 1 until the support position, and the middle outrigger assembly 4 is supported on the box girder;

Step 5. As shown in FIG. 15 , the front outrigger assembly 2 is released from the box girder and/or the bridge pier, and the front outrigger assembly 2 moves toward the auxiliary outrigger assembly 3 on the machine arm 1 until In the support position, the front outrigger assembly 2 is supported on the bridge pier;

Step 6. As shown in FIG. 16 , the rear outrigger assembly 7 is folded and folded, and the box girder erection equipment is used to erect the next hole of the box girder.

Another object of the present invention is to provide a method for crossing the tunnel of the box girder erection equipment, using the above box girder erection equipment, comprising the following steps:

Step a, as shown in Figure 17, the beam transporter 9 drives into the bottom of the box girder erection equipment after installing the bracket 8, and the rear outrigger assembly 7 of the box girder erection device is folded and supported on the box girder;

Step b. As shown in Figure 18, the front outrigger assembly 2 of the box girder erection equipment and the auxiliary leg assembly 3 of the box girder erection device are moved to the designated position on the arm 1 of the box girder erection device. ; The middle outrigger assembly 4 of the box girder erection equipment is vacated, and the middle outrigger assembly 4 is connected with the hoisting assembly 6 of the box girder erection device, and the hoisting assembly 6 drives the middle outrigger The assembly 4 moves toward the front outrigger assembly 2 on the arm 1 until the designated position;

Step c, as shown in Figures 19 and 20, the beam transporter 9 is moved to the piggybacking position, the middle outrigger assembly 4 and the rear outrigger assembly 7 are alternately lowered to the piggyback height, and the machine arm 1 supported on the bracket 8;

Step d, as shown in FIG. 21, the middle outrigger assembly 4 is rotated to the tunnel-passing position, the auxiliary outrigger assembly 3, the front outrigger assembly 2 and the rear outrigger assembly 7 are vacated, and the transport The girder car 9 drives the box girder erection equipment through the tunnel.

When the beam transporter 9 is a split beam transporter 9, in step 1, the front beam transporter 92 first drives between the front outrigger assembly 2 and the rear outrigger assembly 7, thereby preventing the rear outrigger 73 from supporting After the box girder is installed, the front girder transport vehicle 92 cannot drive in, which affects subsequent operations. In step S3, the front hoisting trolley 61 moves backwards to lift the front beam transporting vehicle 92 to the switching support position, and the whole machine is supported by the middle outrigger assembly 4 and the rear outrigger assembly 7 to lower alternately until the machine arm 1 is supported on the front On the bracket 8 of the beam transporter 92, the rear outrigger assembly 7 is folded and folded, the rear beam transporter 91 is driven between the front outrigger assembly 2 and the rear outrigger assembly 7, and the rear outrigger assembly 7 is folded and supported again, The rear beam transporter 91 first pushes the front beam transporter 92 to the front loading position, and then runs backward to the rear loading position, and finally the middle outriggers 43 and the rear outriggers 73 alternately descend to the loading height of the tunnel. On the brackets 8 of the front beam transporter 92 and the rear beam transporter 91 .

In step d, the rotation of the middle outrigger assembly 4 to the tunnel-passing position means that the first upper beam 42 of the middle outrigger assembly 4 rotates around the suspension assembly 41 , and the first upper beam 42 drives the middle outrigger 43 and the first upper beam 42 . The lower beam 44 rotates relative to the machine arm 1 around the vertical axis until the two middle legs 43 can pass through the tunnel smoothly.

When the box girder erection equipment of the present invention cooperates with the split beam transport vehicle 9 to be erected out of the tunnel, the following steps are included:

Step 1. The front beam transporter 92 drives out of the tunnel, and the middle outrigger 43 rotates back to the center;

Step 2. The front beam transporter 92 is moved back to locate the support position of the middle outrigger assembly 4 on the box girder, and the front outrigger assembly 2 and the auxiliary leg assembly 3 are retracted to the top of the bridge pier;

Step 3. The middle outrigger assembly 4 and the rear outrigger assembly 7 are supported and jacked up alternately, the front beam transporter 92 is driven to the support conversion position and supported, the bracket 8 is raised from the jack to a high position, and the rear outrigger assembly 7 is folded and folded;

Step 4. The rear beam transporting vehicle 91 retreats to the bottom of the rear outrigger assembly 7, the rear outrigger assembly 7 is folded down to be supported and fixed on the beam transporting vehicle 9, and the front lifting trolley 61 is locked with the middle outrigger assembly 4;

Step 5. The rear beam transporter 91 drives the whole machine through holes, and the front hoisting trolley 61 drives the middle outriggers 43 to retreat synchronously;

Step 6. The auxiliary outrigger assembly 3 and the middle outrigger assembly 4 are supported on the box girder, and the front outrigger assembly 2 is self-propelled to the front bridge pier;

Step 7. The middle outrigger assembly 4 and the front outrigger assembly 2 are alternately jacked up to the height of the frame beam. The rear outriggers 73 are folded and folded, and the beam transporter 9 is withdrawn. Prepare the girder.

Although the present disclosure is disclosed above, the scope of protection of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall into the protection scope of the present invention.

Claims (11)

1. a box girder erection equipment, is characterized in that, comprises: Arm (1), An outrigger assembly comprising a front outrigger assembly (2) and a middle outrigger assembly (4), the front outrigger assembly (2) and the middle outrigger assembly (4) being adapted to be combined with the machine arm ( 1) sliding connection, the front outrigger assembly (2) is also suitable for connection with the box girder and/or the bridge pier; A hoisting assembly (6), which is movably arranged on the machine arm (1) for hoisting the box girder; the hoisting assembly (6) is adapted to be connected with the middle outrigger assembly (4) to drive the middle outrigger assembly (4) to move on the machine arm (1); A traveling assembly (5) is provided at the lower end of the middle outrigger assembly (4), and the traveling assembly (5) is adapted to drive the machine arm (1) to move through the middle outrigger assembly (4). 2. The box girder erecting equipment according to claim 1, wherein the middle outrigger assembly (4) is adapted to rotate about a vertical axis relative to the machine arm (1) to adjust the middle outrigger The vertical distance of the leg assembly (4) in the width direction of the machine arm (1). 3. The box girder erection equipment according to claim 1, characterized in that, the middle outrigger assembly (4) comprises a first lower beam (44), and the running assembly (5) comprises a vehicle frame (51), A wheel (52) and a power unit (53), the frame (51) is movably connected with the first lower beam (44), the wheel (52) is mounted on the frame (51), the A power unit (53) is mounted on the frame (51) and is drivingly connected with the wheel (52). 4. The box girder erection equipment according to claim 1, wherein the lifting assembly (6) comprises a front lifting trolley (61) and a rear lifting trolley (62), the front lifting trolley (61) and the rear lifting trolley (62) are movably arranged on the machine arm (1), the front lifting trolley (61) and/or the rear lifting trolley (62) are adapted to cooperate with The middle outrigger assembly (4) is connected to drive the middle outrigger assembly (4) to move on the machine arm (1). 5 . The box girder erection equipment according to claim 4 , wherein the middle outrigger assembly ( 4 ) comprises a suspension assembly ( 41 ), and an oil cylinder pin ( 411 ) is installed on the suspension assembly ( 41 ). ), a plug support (63) is installed on the front trolley (61) or the rear hoist (62), and the cylinder plug (411) is adapted to be inserted into the plug support (63) catch. 6. The box girder erection equipment according to any one of claims 1 to 5, wherein the outrigger assembly further comprises an auxiliary outrigger assembly (3) and a rear outrigger assembly (7), along the The length direction of the machine arm (1), the auxiliary outrigger assembly (3), the front outrigger assembly (2), the middle outrigger assembly (4) and the rear outrigger assembly (7) Arranged in sequence; the auxiliary outrigger assembly (3), the front outrigger assembly (2), the middle outrigger assembly (4) and the rear outrigger assembly (7) are adapted to be telescopic to adjust their height , the front outrigger assembly (2) and the auxiliary outrigger assembly (3) are adapted to slide along the machine arm (1), and the rear outrigger assembly (7) is adapted to be relative to the machine arm (1) Turn over. 7. The box girder erection equipment according to claim 6, wherein the auxiliary leg assembly (3) comprises a second lower beam (31) and a support top (32), the second lower beam (31) ) are provided with at least three installation positions, and the two support tops (32) are respectively suitable for being installed at the two installation positions. 8. The box girder erection equipment according to claim 6, characterized in that, the rear outrigger assembly (7) comprises a third lower beam (71), and both ends of the third lower beam (71) are adapted to Telescopic to adjust the length of the third lower beam (71). 9. The box girder erection equipment according to claim 6, wherein the front leg assembly (2) comprises a front leg (22) and an anchoring assembly (23), the anchoring assembly (23) A part of the anchoring assembly (23) is slidably connected with the outrigger, and the other part of the anchoring assembly (23) is adapted to be connected with the box beam. 10. A via method for a box girder erection device, using the box girder erection device as claimed in any one of claims 1-9, comprising the steps: Step 1. After the box girder erection device erects a hole box girder, the front leg assembly (2) of the box girder erection device is fixed to the box girder and/or the pier, and the rear leg assembly of the box girder erection device (7) Supported on the box girder; Step 2. The middle outrigger assembly (4) of the box girder erection equipment is vacated, and the middle outrigger leg assembly (4) is connected with the hoisting assembly (6) of the box girder erection device. To (6) drive the middle outrigger assembly (4) to move toward the rear outrigger assembly (7) on the arm (1) of the box girder erection equipment until the supporting position, and the middle outrigger assembly ( 4) Supported on the box girder, the rear outrigger assembly (7) is vacated; Step 3. The middle outrigger assembly (4) drives the machine arm to move to the position of the through hole, the auxiliary outrigger assembly (3) of the box girder erection equipment is supported on the bridge pier, and the rear outrigger assembly (7) ) supported on the box girder; Step 4. The middle outrigger assembly (4) is vacated, the middle outrigger assembly (4) is connected with the hoisting assembly (6), and the hoisting assembly (6) drives the middle outrigger The assembly (4) is moved on the machine arm (1) towards the front outrigger assembly (2) to a support position, and the middle outrigger assembly (4) is supported on the box beam; Step 5. The front outrigger assembly (2) is released from the box girder and/or the bridge pier, and the front outrigger assembly (2) faces the auxiliary outrigger assembly (3) on the machine arm (1). Move to the support position, the front outrigger assembly (2) is supported on the bridge pier; Step 6. The rear outrigger assembly (7) is folded and folded, and the box girder erection equipment is used to erect the next hole of the box girder. 11. A tunnel crossing method of a box girder erection device, using the box girder erection device as claimed in any one of claims 1-9, comprising the steps: In step a, the beam transporter (9) drives into the bottom of the box girder erection equipment after installing the bracket (8), and the rear outrigger assembly (7) of the box girder erection device is folded and supported on the box girder; Step b. The front outrigger assembly (2) of the box girder erection equipment and the auxiliary leg assembly (3) of the box girder erection device are moved to the designated position on the arm (1) of the box girder erection device The middle outrigger assembly (4) of the box girder erection equipment is vacated, and the middle outrigger assembly (4) is connected with the hoisting assembly (6) of the box girder erection device, and the hoisting assembly ( 6) Drive the middle outrigger assembly (4) to move toward the front outrigger assembly (2) on the machine arm (1) until the designated position; Step c, the beam transporter (9) is moved to the piggyback position, the middle outrigger assembly (4) and the rear outrigger assembly (7) are alternately lowered to the piggyback height, and the machine arm (1) supported on the bracket (8); In step d, the middle outrigger assembly (4) is rotated to the tunnel-passing position, the auxiliary outrigger assembly (3), the front outrigger assembly (2) and the rear outrigger assembly (7) are vacated, so The beam transport vehicle (9) drives the box beam erection equipment to pass through the tunnel.

Images