CN218667153U

CN218667153U - Integrated prefabricated small box girder transverse plug-in type mounting bridge girder erection machine

Info

Publication number: CN218667153U
Application number: CN202222563094.6U
Authority: CN
Inventors: 杨联俊; 张浩浩; 吴春华
Original assignee: Zhongyifeng Construction Group Co Ltd
Current assignee: Zhongyifeng Construction Group Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-03-21
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a prefabricated little case roof beam of integration is horizontal to inserting formula mounting bracket bridge crane, including longmen skeleton, crossbeam, bolt and gear shaping, longmen skeleton formula welded forming's as an organic whole steel skeleton texture, the crossbeam both ends correspond to be connected on the stand of longmen skeleton both sides, the crossbeam is equipped with the horizontal strutbeam that two intervals set up at least, each horizontal strutbeam all slides and is provided with a bolt and a gear shaping, bolt and gear shaping are L type structure, the gear shaping lower extreme is equipped with the horizontally tongue of inserting, the bolt lower extreme be equipped with tongue assorted pin bush, bolt and gear shaping are through pin bush and tongue of inserting plug-in connection. The utility model discloses can realize the installation of the steel case roof beam of different width, it is nimble convenient to use, and the commonality can be good, and the appearance is pleasing to the eye.

Description

Integrated prefabricated small box girder transverse plug-in type mounting bridge girder erection machine

Technical Field

The utility model belongs to the technical field of the bridge construction, concretely relates to prefabricated little case roof beam of integration is horizontal to inserting formula installation bridging machine.

Background

At present, when a bridge is constructed, an upper structure and a lower structure are separately constructed, and the upper structure is generally constructed after the lower structure is completed. The research and application of prefabricating and assembling construction on the upper structure (mainly a box girder) of the bridge in China are mature, and the box girder completely realizes industrial production and mechanical assembly. For the partial installation of upper portion case roof beam, the prior art adopts the method of frame bridge crane field hoist and mount, and this kind of mode can reach certain effect, but the use is troublesome, and the life cycle is long, and efficiency is lower, and can't freely remove, can't adjust.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the utility model provides a prefabricated little box girder of integration is transversely to inserting formula installation bridge girder erection machine suitable for small-size prefabricated beam bridge constructions such as highway engineering, municipal public works and railway engineering for it is troublesome to solve current bridge girder erection machine and use, and the life cycle is long, and efficiency is lower, and can't freely remove and the unable problem of adjusting.

In order to achieve the above technical effect, the utility model discloses a technical scheme is:

the utility model provides a prefabricated little case roof beam of integration is horizontal to inserting formula mounting bracket bridge crane, includes longmen skeleton, crossbeam, bolt and gear shaping, longmen skeleton formula welded forming's as an organic whole reinforcing bar structure, the crossbeam both ends correspond and connect on the stand of longmen skeleton both sides, the crossbeam is equipped with two horizontal strutbeam that the interval set up at least, each horizontal strutbeam all slides and is provided with a bolt and a gear shaping, bolt and gear shaping are L type structure, the gear shaping lower extreme is equipped with the horizontally bolt of inserting, the bolt lower extreme be equipped with bolt assorted pin bush, bolt and gear shaping are through pin bush and bolt plug-in connection.

Furthermore, the cross beam is of a frame-shaped structure, each end of the cross beam is provided with two sleeve holes, each side of the gantry framework is correspondingly provided with two stand columns, and the two ends of the cross beam are sleeved on the stand columns in a vertically sliding mode through the sleeve holes.

Furthermore, a first driving device is installed on a horizontal connecting beam of the gantry framework, and a driving end of the first driving device is connected with the cross beam and used for driving the cross beam to slide up and down along the upright post.

Furthermore, an arched connecting beam is arranged above the horizontal connecting beam on the gantry framework.

Furthermore, the gantry framework comprises column bases arranged at the lower ends of the two sides, and the column bases are connected with the two upright columns on the corresponding sides.

Further, the bottom of the column base is provided with a roller.

Furthermore, sliding grooves are formed in two sides of the transverse supporting beam, sliding seats are arranged at the upper ends of the bolts and the gear shaping teeth, sliding holes matched with the cross section of the transverse supporting beam in shape are formed in the sliding seats, and the bolts and the gear shaping teeth are sleeved on the transverse supporting beam in a sliding mode through the sliding holes of the sliding seats.

Furthermore, a second driving device is fixedly mounted on the cross beam, and a driving end of the second driving device is connected with the inserted pin and the gear shaping and is used for driving the inserted pin and the gear shaping on the same transverse supporting beam to be close to or far away from each other.

Further, the second driving device comprises a motor and a screw rod in transmission connection with the motor, the motor is installed at one end of the cross beam, the screw rod is a bidirectional screw rod and is parallel to the transverse supporting beam, two ends of the screw rod are rotatably connected with two ends of the cross beam through bearings, and the same bolt and gear shaping on the transverse supporting beam are correspondingly in threaded connection with two threaded ends of the screw rod, namely a positive threaded end and a negative threaded end.

Further, the motor is installed in the middle of crossbeam one end, the lead screw is equipped with two, and two lead screws lean on the medial surface setting of horizontal strutbeam, the drive end of motor passes through synchronous belt drive and connects two lead screws.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a longmen skeleton of integral type keeps the stability of whole bridge crane structure, establishes crossbeam and bolt gear shaping cooperation through the cover on longmen skeleton and controls freely and remove from top to bottom, can realize the installation of the steel case roof beam of different widths, and is nimble convenient, and the commonality can be good, and to current bridge crane, the utility model discloses bridge crane does not increase too much structure, has avoided increasing the structure complexity that too much structure leads to and has increased and cost-push. Under the condition that the erection construction of the bridge pier and the prefabricated box girder is separately carried out, the bridge girder erection machine avoids the excessively complicated process of operating the existing bridge girder erection machine, and improves the construction quality and the construction efficiency; in addition, the bridge piers and the prefabricated box girders are erected by the bridge erecting machine, so that the construction cost is low; and the wheels are arranged below the gantry framework, so that the position can be movably adjusted, and the degree of freedom is increased.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments, and it is obvious that the described embodiments are some embodiments, not all embodiments of the present invention.

Drawings

FIG. 1 is a schematic perspective view of the bridge girder erection machine of the present invention;

FIG. 2 is a schematic view of the front structure of the bridge girder erection machine of the present invention;

FIG. 3 is a schematic view of the structure of the bridge girder erection machine of the present invention in a use state;

fig. 4 is a schematic view of the connection state of the sliding seat and the transverse supporting beam of the plug pin or the gear shaping of the present invention.

The reference numbers and corresponding designations in the drawings are:

1. a gantry framework, 11 upright posts, 12 horizontal connecting beams,

13. Arched connecting beam, 14 column feet, 2 cross beam,

21. Transverse supporting beam, 3 plug pins, 31 pin sleeves,

32. A sliding seat, 321 threaded holes, 4 gear shaping,

41. Inserting tongues, 5 rollers and 6 prefabricated box girders.

Detailed Description

The structure of the integrated prefabricated small box girder transverse opposite-inserting type mounting bridge girder erection machine of the embodiment is shown in figures 1-4,

the gantry comprises a gantry framework 1, a cross beam 2, a bolt 3, a gear shaping 4, a first driving device and a second driving device. The gantry framework 1 is of an integrated welded and formed steel skeleton structure, and the cross beam 2, the plug pin 3 and the gear shaping 4 are made of steel materials so as to ensure that the whole bridge girder erection machine has enough rigidity.

The gantry framework 1 is of a double-row structure, each side is provided with two upright columns 11, the bottoms of the two upright columns 11 positioned on the same side are connected through a column foot 14, and the bottom of the column foot 14 is provided with the roller 5, so that the whole bridge erecting machine can be conveniently moved, the position can be adjusted, and the degree of freedom can be increased. The tops of the two vertical columns 11 positioned on the same side are connected through a horizontal longitudinal beam, the tops of the two vertical columns 11 positioned on the same row are connected through a horizontal connecting beam 12, and an arched connecting beam 13 is further arranged above the horizontal connecting beam 12 and used for increasing the strength of the gantry framework 1 and improving the aesthetic feeling of the appearance of the gantry framework.

The crossbeam 2 has two horizontal corbels 21 that the horizontal interval set up, and the both sides of horizontal corbel 21 are formed with the spout, and two horizontal corbels 21 are used for installing two supporting bolt 3 and gear shaping 4 that set up and lift and hold in the palm precast box roof beam 6, guarantee precast box roof beam 6 level stability. Preferably, the cross beam 2 is of a frame structure, so that the two transverse supporting beams 21 form a whole, each end of the cross beam 2 is provided with a sleeve hole corresponding to the upright posts 11 at two sides, and two ends of the cross beam 2 are sleeved on the upright posts 11 in a vertically sliding manner through the sleeve holes. The up-and-down movement and fixation of the beam 2 along the upright 11 are realized by a first driving device (not shown in the figure) which is arranged on a horizontal connecting beam 12 of the gantry framework 1, the driving end of the first driving device is connected with the beam 2, and the first driving device can adopt an air cylinder, an oil cylinder, a motor and the like as power parts.

Bolt 3 and gear shaping 4 are supporting setting, and are L type structure, and the top of the vertical section in upper end all is provided with sliding seat 32, and sliding seat 32 is equipped with and horizontal corbel 21 cross-section appearance assorted slide opening, and bolt 3 and gear shaping 4 cover are established on horizontal corbel 21 through the slide opening slip cover of sliding seat 32. The horizontal sections of the lower ends of the bolt 3 and the gear shaping 4 are respectively corresponding to a pin sleeve 31 and a bolt 41, and the gear shaping 4 is inserted in the pin sleeve 31 of the bolt 3 through the bolt 41. Each transverse beam 21 is slidably provided with a bolt 3 and a gear 4. The bolt 3 and the gear shaping 4 slide horizontally on the beam 2 and are inserted into or separated from each other by a second driving device (not shown in the figure).

Preferably, in order to ensure that the pin 3 and the gear shaper 4 on the same transverse supporting beam 21 move towards or away from each other synchronously, the centers of the whole pin 3 and the gear shaper 4 inserted into the front and rear transverse supporting beams 21 are aligned with the center of the transverse supporting beam 21, and the pin 3 and the gear shaper 4 on the same transverse supporting beam 21 are in threaded connection with a bidirectional screw rod through the threaded holes 321 on the respective sliding seats 32. The second driving device can adopt two motors as driving power parts, one set of the motor and the screw rod is used for driving the plug pin 3 and the gear shaping 4 on one transverse supporting beam 21 to be mutually inserted, and the other set of the motor and the screw rod is used for driving the plug pin 3 and the gear shaping 4 on the other transverse supporting beam 21 to be mutually inserted.

More preferably, in order to ensure that the pins 3 and the gear shaping teeth 4 on the two transverse supporting beams 21 can be synchronously inserted and locked, the first driving device adopts a structural design of one set of motor and two screw rods, so that a set of power parts of the first driving device can be saved, and the cost is reduced. Therefore, the motor is arranged in the middle of one end of the cross beam 2, each screw rod correspondingly penetrates through the sliding seat 32 of the bolt 3 and the gear shaping 4 sleeved on the same transverse supporting beam 21, two ends of each screw rod are rotatably connected with two ends of the cross beam 2 through bearings, and the driving end of the motor is connected with the two screw rods through synchronous belt synchronous transmission. In order to facilitate the appearance of the device to be beautiful and tidy in view of the outside, the threaded hole on the sliding seat is arranged at the inner end of the sliding seat, and thus, the screw rod is hidden at the inner side of the transverse supporting beam 21. In addition, in order to save cost, the synchronous motion of the two groups of bolts 3 and the gear shaping 4 driven by one set of motor of the bridge erecting machine is not limited to the above mode, for example, the sliding seats 32 of the two bolts 3 can be connected through a connecting rod, the sliding seats 32 of the two gear shaping 4 are connected through a connecting rod, the middle parts of the two connecting rods are provided with threaded holes, and a structure that the two connecting rods are penetrated through by a bidirectional screw rod thread is adopted.

The present invention is not limited to the above specific embodiments, and for those skilled in the art, the above conception can be used without any creative work, and all the changes made fall within the protection scope of the present invention.

Claims

1. The integrated prefabricated small box girder transverse opposite-insertion type mounting bridge girder erection machine is characterized by comprising a gantry framework, a cross beam, a bolt and gear shaping teeth, wherein the gantry framework is of an integral welded steel skeleton structure, two ends of the cross beam are correspondingly connected to stand columns on two sides of the gantry framework, the cross beam is at least provided with two transverse supporting beams arranged at intervals, each transverse supporting beam is provided with the bolt and the gear shaping teeth in a sliding mode, the bolt and the gear shaping teeth are of an L-shaped structure, the lower end of the gear shaping teeth is provided with a horizontal insert tongue, the lower end of the bolt is provided with a pin sleeve matched with the insert tongue, and the bolt and the gear shaping teeth are connected through the pin sleeve and the insert tongue in an inserting mode.

2. The integrated prefabricated small box girder transverse oppositely-inserted type mounting bridge girder erection machine as claimed in claim 1, wherein the cross beam is of a frame-shaped structure, each end of the cross beam is provided with two sleeve holes, each side of the gantry framework is correspondingly provided with two upright posts, and the two ends of the cross beam are slidably sleeved on the upright posts up and down through the sleeve holes.

3. The integrated prefabricated small box girder transverse oppositely-inserted type mounting bridge girder erection machine as claimed in claim 2, wherein a first driving device is mounted on the horizontal connecting beam of the gantry framework, and a driving end of the first driving device is connected with the cross beam and is used for driving the cross beam to slide up and down along the upright post.

4. The integrated prefabricated small box girder transverse opposite-insertion type mounting bridge girder erection machine as claimed in claim 3, wherein an arched connecting beam is arranged above the horizontal connecting beam on the gantry framework.

5. The integrated prefabricated small box girder transverse butt-inserting type mounting bridge girder erection machine as claimed in claim 2, wherein the gantry framework comprises column bases arranged at the lower ends of two sides, and the column bases are connected with two vertical columns on the corresponding sides.

6. The integrated prefabricated small box girder transverse butt-inserting type bridge girder erection machine as claimed in claim 5, wherein rollers are installed at the bottoms of the column bases.

7. The integrated prefabricated small box girder transverse oppositely-inserted type mounting and bridge erecting machine as claimed in claim 2, wherein sliding grooves are formed in two sides of the transverse supporting beam, sliding seats are formed at the upper ends of the inserted pins and the inserted teeth, the sliding seats are provided with sliding holes matched with the cross-sectional shape of the transverse supporting beam, and the inserted pins and the inserted teeth are slidably sleeved on the transverse supporting beam through the sliding holes of the sliding seats.

8. The integrated prefabricated small box girder transverse oppositely-inserting type mounting and bridge erecting machine as claimed in claim 7, wherein a second driving device is fixedly mounted on the cross beam, and a driving end of the second driving device is connected with a bolt and a gear shaping for driving the bolt and the gear shaping on the same transverse supporting beam to be close to or far away from each other.

9. The integrated prefabricated small box girder transverse oppositely-inserting type mounting and bridge erecting machine is characterized in that the second driving device comprises a motor and a screw rod in transmission connection with the motor, the motor is mounted at one end of the cross beam, the screw rod is a bidirectional screw rod and is parallel to the transverse supporting beam, two ends of the screw rod are rotatably connected with two ends of the cross beam through bearings, and a bolt and a gear shaping on the same transverse supporting beam are correspondingly in threaded connection with two threaded ends of the screw rod in a positive threaded end and a negative threaded end.

10. The integrated prefabricated small box girder transverse oppositely-inserting type mounting bridge girder erection machine as claimed in claim 9, wherein the motor is mounted in the middle of one end of the cross beam, two screw rods are provided, the two screw rods are arranged close to the inner side surface of the transverse supporting beam, and the driving end of the motor is connected with the two screw rods through a synchronous belt transmission.