CN215857256U

CN215857256U - Middle supporting device of bridge girder erection machine

Info

Publication number: CN215857256U
Application number: CN202121695792.0U
Authority: CN
Inventors: 胡林; 王朋波; 段锋; 刘德兵; 吴红兵; 周长; 席科技; 姜子麒; 薛晓宏
Original assignee: Sixth Engineering Co Ltd of China Railway 20th Bureau Group Co Ltd
Current assignee: Sixth Engineering Co Ltd of China Railway 20th Bureau Group Co Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-02-18
Anticipated expiration: 2031-07-23

Abstract

The utility model relates to a middle supporting device of a bridge girder erection machine, which comprises: the device comprises a supporting cross beam, a rotating assembly, a driving assembly and a traversing assembly, wherein the rotating assembly is fixed on the supporting cross beam; the driving assembly comprises a first driving motor, a connecting box and a sliding unit, the lower surface of the connecting box is connected with the rotating assembly, the sliding unit is rotatably arranged in the connecting box and extends out of the upper surface of the connecting box to drive the longitudinal guide beam to move, the first driving motor is fixed on the side edge of the connecting box, and the output end of the first driving motor extends into the connecting box and is in transmission connection with the sliding unit; the transverse moving assembly is arranged below the supporting cross beam and used for driving the supporting cross beam to move transversely. The bridge girder erection machine is simple in structure and convenient to operate, solves the problem that the traditional bridge girder erection machine cannot erect a small-radius curve bridge, and is more convenient to construct.

Description

Middle supporting device of bridge girder erection machine

Technical Field

The utility model relates to the technical field of bridge erecting machines, in particular to a middle supporting device of a bridge erecting machine.

Background

In the process of erecting steel beam type bridges such as steel arch bridges, cable-stayed bridges, suspension bridges and the like, a bridging machine is needed to be arranged between piers, then a hoisting device on the bridging machine is used for lifting a steel beam, and the steel beam is erected on the corresponding pier.

For the erection of the small-maze bridge, firstly, a bridge erecting machine spans a bridge to be erected, the transverse center of a main beam assembly and the center line of one bridge to be erected move to the outer side of a curve for a certain distance, and as the curve section box girders are arranged in a curve, the center line of each section of box girder from a pier to the midspan direction is gradually deviated to the outer side of the curve compared with the center line of the bridge erecting machine, however, the bridge erecting machine in the prior art does not have the functions of transverse movement and rotation, and has certain difficulty for the erection of the bridge with the small-maze radius.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides a middle support device of a bridge girder erection machine.

The application provides a middle part strutting arrangement of frame bridge crane includes: a supporting beam, a rotating assembly, a driving assembly and a traversing assembly,

the rotating assembly is fixed on the supporting cross beam;

the driving assembly comprises a first driving motor, a connecting box and a sliding unit, the lower surface of the connecting box is connected with the rotating assembly, the sliding unit is rotatably arranged in the connecting box and extends out of the upper surface of the connecting box to drive the longitudinal guide beam to move, the first driving motor is fixed on the side edge of the connecting box, and the output end of the first driving motor extends into the connecting box and is in transmission connection with the sliding unit;

the transverse moving assembly is arranged below the supporting cross beam and used for driving the supporting cross beam to move transversely.

Preferably, the sliding unit includes first pulley and second pulley, the opening has been seted up to the upper surface of connecting box, first pulley with the second pulley rotationally sets up in the connecting box, just first pulley with the second pulley is followed the opening part stretches out and indulges the nose girder contact, first driving motor's output stretches into in the connecting box with first pulley with the transmission of second pulley is connected.

Preferably, the rotating assembly includes a rotating disk fixed on the supporting beam, and the rotating disk is connected with a lower surface of the connection box.

Preferably, the upper surface of rotary disk is equipped with first connecting piece, the lower surface of connecting box is equipped with the second connecting piece, all be equipped with the connecting hole of mutual matched with connection on first connecting piece and the second connection.

Preferably, first connecting piece with the second connecting piece all includes connecting portion and installation department, connecting portion fix on the installation department, the connecting hole sets up the surface of connecting portion, the installation department is fixed the upper surface of rotary disk and/or the lower surface of connecting box.

Preferably, the traverse assembly comprises a traverse rail, a second driving motor, a moving wheel and a traverse box, the upper surface of the traverse box is fixedly connected with the supporting beam, the lower surface of the traverse box is provided with a through hole, the moving wheel is rotatably arranged in the traverse box and extends out of the through hole to be slidably connected to the traverse rail, the second driving motor is fixed on the side wall of the traverse box, and the output end of the second driving motor extends into the traverse box to be in transmission connection with the moving wheel.

Preferably, the transverse moving track is provided with a slide bar protruding upwards, and the moving wheel is connected to the slide bar in a sliding manner.

Preferably, the width of the traverse rail is greater than the width of the support beam.

Preferably, the supporting beam comprises a supporting section and a connecting section which are connected with each other, an included angle is formed between the supporting section and the connecting section, and the rotating assembly and the traversing assembly are respectively connected with the upper surface and the lower surface of the supporting section.

Preferably, the angle value of the included angle ranges from 110 degrees to 130 degrees.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

will indulge the nose girder jack-up, make indulge the nose girder break away from with the contact of sliding element, later with whole well device hoist and move to suitable position, preceding landing leg and back landing leg redrive indulge the nose girder decline after that, make indulge the nose girder and contact with the sliding element again, later through first driving motor drive sliding element, make the direction of the vertical nose girder of back half section down next pier remove, and adjust the angle between indulge nose girder and the pier through rotating assembly, and the horizontal position of supporting beam is adjusted to the sideslip subassembly, thereby accomplish the operation of striding of bridge girder erection machine, moreover, the steam generator is simple in structure, and convenient for operation, the problem of traditional bridge girder erection machine to the unable construction of erectting of small radius curve bridge has been solved, and the construction is more convenient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

In the drawings:

FIG. 1 is a schematic view of a middle support device of the bridge girder erection machine of the present invention mounted on a longitudinal guide beam;

FIG. 2 is a schematic structural view of a middle support device of the bridge girder erection machine;

FIG. 3 is an enlarged schematic view at A in FIG. 2

FIG. 4 is a schematic view of a support beam in the middle support device of the bridge girder erection machine according to the present invention;

reference numerals: 1. a longitudinal guide beam; 2. a middle branch device; 21. a support beam; 2101 support sections; 2102. a connecting section; 22. a connecting box; 23. a first drive motor; 24. a first pulley; 25. a second pulley; 26. rotating the disc; 27. a first connecting member; 271. an installation part; 272. a connecting portion; 28. a second connecting member; 29. connecting holes; 210. a second drive motor; 211. traversing the box; 212. traversing the track; 213. a moving wheel; 214. a slide bar;

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the utility model. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

In the embodiment of the middle support device 2 of the bridge girder erection machine of the present invention, as shown in fig. 1 to 4, the middle support device 2 comprises: a support beam 21, a rotation assembly, a drive assembly and a traverse assembly,

the rotating assembly is fixed on the supporting cross beam 21, the driving assembly comprises a first driving motor 23, a connecting box 22 and a sliding unit, the lower surface of the connecting box 22 is connected with the rotating assembly, the sliding unit is rotatably arranged in the connecting box 22 and extends out of the upper surface of the connecting box 22 to drive the longitudinal guide beam 1 to move, the first driving motor 23 is fixed on the side edge of the connecting box 22, and the output end of the first driving motor 23 extends into the connecting box 22 and is in transmission connection with the sliding unit; the traversing component is arranged below the supporting beam 21 and is used for driving the supporting beam 21 to move transversely.

With reference to the above-described structure, by providing the rotating assembly on the supporting beam 21 and providing the sliding unit slidably connected to the longitudinal guide beam 1 on the rotating assembly, when a bridge needs to be moved to a next bridge pier for erection, the longitudinal guide beam 1 is jacked up by using the front and rear legs, so that the longitudinal guide beam 1 is separated from the sliding unit, then the entire middle support device 2 is hoisted to a suitable position, then the longitudinal guide beam 1 is driven by the front and rear legs to descend, so that the longitudinal guide beam 1 is again contacted with the sliding unit, then the sliding unit is driven by the first driving motor 23, so that the longitudinal guide beam 1 at the rear half section moves toward the next bridge pier, the angle between the longitudinal guide beam 1 and the bridge pier is adjusted by the rotating assembly, and the transverse position of the supporting beam 21 is adjusted by the transverse assembly, thereby completing the operation of crossing of the bridge erecting machine, simple structure, convenient operation has solved traditional bridging machine and can't erect the problem of construction to the curve bridge of small radius, and the construction is more convenient.

In one embodiment of the present application, the sliding unit includes a first pulley 24 and a second pulley 25, an opening is opened on the upper surface of the connecting box 22, the first pulley 24 and the second pulley 25 are rotatably disposed in the connecting box 22, the first pulley 24 and the second pulley 25 extend out from the opening to contact with the longitudinal guide beam 1, and the output end of the first driving motor 23 extends into the connecting box 22 to be in transmission connection with the first pulley 24 and the second pulley 25. It should be noted that, when the longitudinal guide beam 1 needs to be driven to move forward, the first driving motor 23 drives the first pulley 24 and the second pulley 25 to rotate in the connecting box 22, and because the first pulley 24 and the second pulley 25 extend out from the opening of the connecting box 22 to be connected with the longitudinal guide beam 1, the longitudinal guide beam 1 is driven to move forward, so that the longitudinal guide beam 1 is driven to move, the problem that the longitudinal guide beam 1 cannot move in the conventional bridge erecting machine is solved, the subsequent bridge erecting construction is more convenient, and the construction time is saved.

In one embodiment of the present application, the rotating assembly includes a rotating disk 26, the rotating disk 26 is fixed on the supporting beam 21, and the rotating disk 26 is connected with the lower surface of the connection box 22. Since the skew angle exists between two piers in the small radius curve bridge and the movement of the longitudinal guide beam 1 is performed linearly, the rotating disc 26 is needed to adjust the longitudinal guide beam 1. Rotate through controlling rotary disk 26, drive the connecting box 22 of connection on rotary disk 26 and rotate for place the vertical guide beam 1 on connecting box 22 and following and rotating, thereby accomplished the position adjustment to vertical guide beam 1, simple structure, convenient operation.

Specifically, the upper surface of the rotating plate 26 is provided with a first connecting member 27, the lower surface of the connecting box 22 is provided with a second connecting member 28, and the first connecting member 27 and the second connecting member are provided with connecting holes 29 which are matched and connected with each other. The first connecting piece 27 and the second connecting piece 28 are matched with each other to realize the fixed connection of the rotating disc 26 and the connecting box 22, so that the connection stability is enhanced, and the subsequent connecting box 22 is convenient to detach from the rotating disc 26.

Wherein, the first connector 27 and the second connector 28 each include a connecting portion 272 and a mounting portion 271, the connecting portion 272 is fixed on the mounting portion 271, the connecting hole 29 is provided on the surface of the connecting portion 272, and the mounting portion 271 is fixed on the upper surface of the rotating disk 26 and/or the lower surface of the connection box 22.

In one embodiment of the present application, the traverse assembly includes a traverse rail 212, a second driving motor 210, a moving wheel 213 and a traverse box 211, an upper surface of the traverse box 211 is fixedly connected with the support beam 21, a lower surface of the traverse box 211 is provided with a through hole, the moving wheel 213 is rotatably disposed in the traverse box 211 and slidably connected to the traverse rail 212 by protruding from the through hole, the second driving motor 210 is fixed on a sidewall of the traverse box 211, an output end of the second driving motor 210 protrudes into the traverse box 211 to be drivingly connected with the moving wheel 213, and a width of the traverse rail 212 is larger than a width of the support beam 21. It should be noted that, after the supporting beam 21 is moved to the right position, the supporting beam 21 can be driven by the second driving motor 210 to move on the moving track, so that the supporting beam 21 can be adjusted, and the subsequent bridging needs are facilitated.

Specifically, a slide 214 protruding upward is provided on the traverse rail 212, and the moving wheel 213 is slidably coupled to the slide 214.

In one embodiment of the present application, the supporting beam 21 comprises a supporting section 2101 and a connecting section 2102 connected to each other, the supporting section 2101 and the connecting section 2102 form an included angle therebetween, the included angle has a value ranging from 110 ° to 130 °, and the rotating assembly and the traversing assembly are connected to the upper surface and the lower surface of the supporting section 2101, respectively. It should be noted that the supporting beam 21 is composed of the supporting section 2101 and the connecting section 2102, and an included angle is formed between the supporting section 2101 and the connecting section, so that the strength of the supporting beam 21 is enhanced, and instability in the process of moving the supporting beam 21 is avoided; in the present embodiment, the optimal angle range of the included angle is 120 °.

It is to be understood that the foregoing examples, while indicating the preferred embodiments of the utility model, are given by way of illustration and description, and are not to be construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A middle support device of a bridge girder erection machine is characterized by comprising: a supporting beam, a rotating assembly, a driving assembly and a traversing assembly,

the rotating assembly is fixed on the supporting cross beam;

2. The middle supporting device of the bridge girder erection machine according to claim 1, wherein the sliding unit comprises a first pulley and a second pulley, an opening is opened on the upper surface of the connecting box, the first pulley and the second pulley are rotatably disposed in the connecting box, the first pulley and the second pulley protrude from the opening and contact with the longitudinal guide beam, and the output end of the first driving motor extends into the connecting box and is in transmission connection with the first pulley and the second pulley.

3. The mid-support of a bridge girder erection machine according to claim 1, wherein the rotation assembly includes a rotation disk fixed to the support beam and connected with a lower surface of the connection box.

4. The middle support device of a bridge girder erection machine according to claim 3, wherein the upper surface of the rotating disc is provided with a first connecting member, the lower surface of the connecting box is provided with a second connecting member, and the first connecting member and the second connecting member are provided with connecting holes which are mutually matched and connected.

5. The middle supporting device of the bridge girder erection machine according to claim 4, wherein the first connecting member and the second connecting member each include a connecting portion and an installation portion, the connecting portion is fixed on the installation portion, the connecting hole is provided on a surface of the connecting portion, and the installation portion is fixed on an upper surface of the rotating disc and/or a lower surface of the connection box.

6. The middle support device of a bridge girder erection machine as claimed in claim 1, wherein the traverse assembly comprises a traverse rail, a second driving motor, a moving wheel and a traverse box, the upper surface of the traverse box is fixedly connected with the supporting beam, the lower surface of the traverse box is provided with a through hole, the moving wheel is rotatably disposed in the traverse box and is slidably connected to the traverse rail by protruding from the through hole, the second driving motor is fixed on the side wall of the traverse box, and the output end of the second driving motor is connected to the moving wheel by transmission by protruding into the traverse box.

7. A mid-support apparatus for a bridge girder erection machine as claimed in claim 6, wherein the traverse rail is provided with a slide bar protruding upward, and the moving wheel is slidably coupled to the slide bar.

8. A mid-support arrangement for a bridge girder according to claim 7, wherein the traverse rail has a width greater than a width of the support beam.

9. A mid-support arrangement for a bridge girder according to claim 1, wherein the support beam comprises a support section and a connecting section connected to each other, an angle being formed between the support section and the connecting section, and the rotation member and the traverse member are connected to an upper surface and a lower surface of the support section, respectively.

10. A middle support arrangement for a bridge girder erection machine according to claim 9, wherein the included angle has a value in the range of 110 ° to 130 °.