Anti-overturning mechanism for reverse buckle wheel

Abstract

The utility model discloses a reverse buckle wheel overturn-preventing mechanism which comprises a rear beam body, and the rear beam body comprises a rear cross beam, a rear arch beam and a rear installation beam. The rear cross beam is arranged above a built box girder in a crossing mode and pressed on the rear portion of a main truss of the bridge fabrication machine, the rear arch beams are located on the two sides of the rear cross beam, the upper ends of the rear arch beams are fixedly connected with the rear cross beam, the lower ends of the rear arch beams extend to the position below flanges of the built box girder, and the rear installation beams are connected with the rear arch beams. The rear installation beam is provided with a reverse buckling wheel used for being matched with the bottom face of the flange of the built box beam. And a first connecting piece is further included, so that the rear beam body and the main truss can synchronously walk. The reverse buckling wheel is matched with the bottom face of the flange of the built box girder to prevent overturning in the walking process of the main truss, a track does not need to be arranged, and the device has the advantages of being low in manufacturing cost, convenient to install and construct and high in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction engineering equipment technical field, concretely relates to a reverse buckle wheel anti-overturning mechanism. BACKGROUND

[0002] The bridge building machine, also known as bridge building machine, is a kind of mechanical equipment specially used for bridge construction. It can complete multiple links in the overall construction of bridge, such as bridge pouring. The use of bridge building machine can greatly improve the efficiency and quality of bridge construction, and reduce the investment of manpower and material resources.

[0003] Since the gravity center of the bridge building machine is forward (template side), the anti-overturning mechanism is arranged near the rear side of the bridge building machine to prevent the bridge building machine from overturning forward.

[0004] The existing anti-overturning mechanism during the walking process of the main truss of the bridge building machine generally includes reverse buckle wheel and track. The track is connected and fixed with the top of the built box girder through connecting piece (the vertical pier is vertical steel reinforcement, which needs to be pre-buried and anchored on the box girder), and the main truss of the bridge building machine is matched with the track through the reverse buckle wheel.

[0005] The deficiencies of the existing anti-overturning mechanism are high cost, great installation and construction difficulty and poor reliability. Specifically, due to the complex structure and the need to repeatedly disassemble and assemble a large number of pre-buried parts (mainly vertical piers), the cost is high, the installation and construction difficulty is great, and the reliability is poor. The pre-buried parts are repeatedly disassembled and assembled by manual work, if the anchor points are not uniformly distributed or welded firmly, local stress concentration may occur, causing the connection structure of the track to deform or break. INVENTION CONTENTS

[0006] The utility model aims at providing a reverse buckle wheel anti-overturning mechanism with low cost, convenient installation and construction and high reliability.

[0007] In order to achieve the above utility model purposes, the utility model adopts the following technical scheme:

[0008] A reverse buckle wheel anti-overturning mechanism, comprising a rear beam body, the rear beam body comprising a rear cross beam, a rear bow beam and a rear mounting beam;

[0009] The rear cross beam is arranged above the built box girder and presses on the rear part of the main truss of the bridge building machine, the rear bow beam is located on both sides of the rear cross beam, the upper end of the rear bow beam is fixedly connected with the rear cross beam, the lower end of the rear bow beam extends below the flange of the built box girder, the rear mounting beam is connected with the rear bow beam, and the reverse buckle wheel for cooperating with the bottom surface of the flange of the built box girder is arranged on the rear mounting beam.

[0010] Further comprising a first connecting piece, so that the rear beam body can walk synchronously with the main truss.

[0011] As a further improved technical scheme of the utility model, a plurality of pin holes are arranged on the rear bow beam in the vertical direction, the rear mounting beam is connected with the rear bow beam through the positioning pin penetrating the pin hole, so that the distance between the reverse buckle wheel and the bottom surface of the built box girder flange is adjustable.

[0012] As a further improved technical scheme of the utility model, the reverse buckle wheel comprises a wheel seat and a plurality of wheel bodies, the wheel seat is fixedly connected with the rear mounting beam, and the plurality of wheel bodies are connected with the wheel seat through rotating shafts.

[0013] As a further improved technical scheme of the utility model, the main truss is connected with a curtain in the middle, the curtain is connected with a middle beam body on both sides, the middle beam body comprises a middle bow beam and a middle mounting beam, and the middle mounting beam is connected with a sliding beam.

[0014] The first connecting piece is two groups of connecting rods, one group of connecting rods is connected with the rear bow beam and the middle bow beam, and the other group of connecting rods is connected with the rear mounting beam and the sliding beam.

[0015] As a further improved technical scheme of the utility model, the rear cross beam is connected with the built box girder through the fine rolled threaded steel.

[0016] As a further improved technical scheme of the utility model, the utility model further comprises a rear pressing beam, the rear pressing beam is arranged in the rear part of the main truss of the bridge building machine in a pressing manner, and the rear pressing beam is connected with the built box girder through the fine rolled threaded steel.

[0017] Compared with the prior art, the technical effect of the utility model lies in that:

[0018] The reverse buckle wheel is matched with the bottom surface of the flange of the built box girder in the walking process of the main truss, and overturning is prevented, the track matched with the reverse buckle wheel does not need to be arranged, the structure is simple, the process of repeatedly disassembling and assembling a large number of embedded parts for installing the track is omitted, and the utility model has the advantages of low cost and convenient installation and construction. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the bridge building machine provided with the reverse buckle wheel overturning prevention mechanism in the embodiment of the utility model;

[0020] Figure 2 It is Figure 1 It is a local enlarged structure schematic view of position A in the middle;

[0021] Figure 3 It is a three-dimensional structure schematic view of the rear beam body. DETAILED DESCRIPTION

[0022] The utility model will be described in detail below in combination with the specific embodiments shown in the drawings. However, these embodiments do not limit the utility model, and the changes in structure, method or function made by those skilled in the art based on these embodiments are all included in the protection scope of the utility model.

[0023] Please see Figures 1 to 3 A reverse buckle wheel anti-overturning mechanism, comprising a rear beam body 100, the rear beam body 100 comprises a rear cross beam 101, a rear bow beam 102, a rear mounting beam 103;

[0024] The rear cross beam 101 is arranged above the built box girder 400 and is pressed on the rear part of the main truss 200 of the bridge building machine, the rear bow beam 102 is located on both sides of the rear cross beam 101, the upper end of the rear bow beam 102 is fixedly connected with the rear cross beam 101, the lower end of the rear bow beam 102 extends below the flange 401 of the built box girder 400, the rear mounting beam 103 is connected with the rear bow beam 102, and the reverse buckle wheel 104 for cooperating with the bottom surface of the flange 401 of the built box girder 400 is arranged on the rear mounting beam 103.

[0025] It also comprises a first connecting piece, so that the rear beam body 100 can walk synchronously with the main truss 200.

[0026] It should be noted that the box girder 400 is a kind of existing bridge structure, and the built box girder 400 refers to the box girder 400 after pouring and concrete solidification, which can be regarded as a stable installation platform.

[0027] The flange 401 refers to the edge of the top of the box girder 400.

[0028] The main truss 200 is an important supporting structure of the bridge building machine, and the bridge building machine usually comprises two groups of main trusses 200 in the form of diamond frame.

[0029] The formwork 300 is suspended in front of the main truss 200, and after pouring a section of the box girder 400 through the formwork 300, the main truss 200 needs to be adjusted to walk forward with the formwork 300, and the pouring of the next section of the box girder 400 is carried out, so as to complete the pouring of the entire box girder 400. The first connecting piece is used to connect the rear beam body 100 and the main truss 200, so as to ensure that the rear beam body 100 moves synchronously during the walking process of the main truss 200, and is always pressed on the rear part of the main truss 200, thereby preventing the main truss 200 from overturning forward.

[0030] In the embodiment, the main truss 200 is connected with a curtain 500 in the middle, the curtain 500 is connected with a middle beam body on both sides, the middle beam body comprises a middle bow beam 601 and a middle mounting beam 602, and the middle mounting beam 602 is connected with a sliding beam 1.

[0031] The first connecting member is two groups of connecting rods 111 (two connecting rods 111 in each group, one on each side), one group of connecting rods 111 connecting the rear arch beam 102 and the middle arch beam 601, and the other group of connecting rods 111 connecting the rear mounting beam 103 and the sliding beam 1.

[0032] During the walking process of the main truss 200, the position of the curtain 500, the middle beam body and the sliding beam 1 relative to the main truss 200 is fixed. After the connecting rods 111 connect the rear arch beam 102 and the middle arch beam 601, and the rear mounting beam 103 and the sliding beam 1, the rear beam body 100 is indirectly connected with the main truss 200 as an integrated structure to overcome the frictional force between the reverse buckling wheel 104 and the bottom surface of the flange 401, so that the rear beam body 100 and the main truss 200 walk synchronously. Since the connecting position of the connecting rod 111 on the rear beam body 100 (the rear arch beam 102 and the rear mounting beam 103) is close to the reverse buckling wheel 104 (a component that generates friction during walking), the synchronization of the walking of the rear beam body 100 and the main truss 200 can be more reliably guaranteed, which is the preferred first connecting member implementation.

[0033] Of course, in other embodiments, bolts can also be used as the first connecting member to directly connect and fix the rear beam body 100 and the main truss 200 at the pressing position of the rear cross beam 101 and the main truss 200, so that the rear beam body 100 can walk synchronously with the main truss 200.

[0034] In the present embodiment, a plurality of pin holes 115 are arranged on the rear arch beam 102 in the vertical direction, and the rear mounting beam 103 is connected with the rear arch beam 102 through a positioning pin 116 penetrating the pin hole 115, so that the distance between the reverse buckling wheel 104 and the bottom surface of the flange 401 of the built box girder 400 can be adjusted. During installation, the position of the reverse buckling wheel 104 should be adjusted according to the actual specifications of the box girder 400, so that the reverse buckling wheel 104 is arranged close to or abutting against the bottom surface of the flange 401.

[0035] Further, the reverse buckling wheel 104 includes a wheel seat 1041 and a plurality of wheel bodies 1042, the wheel seat 1041 is fixedly connected with the rear mounting beam 103, and the plurality of wheel bodies 1042 are connected with the wheel seat 1041 through rotating shafts.

[0036] Further, the rear cross beam 101 is anchored and connected with the built box girder 400 through the fine rolled threaded steel 2.

[0037] Further, it also includes a rear pressing beam 112, which is arranged at the rear of the main truss 200 of the bridge building machine, and is anchored and connected with the built box girder 400 through the fine rolled threaded steel 2.

[0038] It needs to be explained that the finished rolled threaded steel 2 is fixedly connected with the built box girder 400, and the rear cross beam 101 and the rear pressing beam 112 are connected with the finished rolled threaded steel 2 through the nut 113 and the gasket 114. Before the concrete pouring in the formwork 300 is completed, the rear cross beam 101 is anchored and connected with the built box girder 400 through the finished rolled threaded steel 2, and the rear pressing beam 112 is anchored and connected with the built box girder 400 through the finished rolled threaded steel 2, so as to strengthen the bearing capacity of the anti-overturning mechanism. After the pouring is completed, when the concrete in the formwork 300 is solidified and formed, the anchoring connection between the rear cross beam 101, the rear pressing beam 112 and the built box girder 400 can be disconnected by loosening the nut 113 connected with the finished rolled threaded steel 2 or cutting off the finished rolled threaded steel 2, at this time, the main truss 200 can walk forward, and only the reverse buckling wheel 104 is buckled on the bottom surface of the flange 401 to realize the anti-overturning.

[0039] If the reverse buckling wheel 104 is only close to the bottom surface of the flange 401 and is not tightly arranged (there is a small gap) when the rear beam body 100 is installed. After the anchoring connection between the rear cross beam 101, the rear pressing beam 112 and the built box girder 400 is disconnected, the bridge building machine will slightly incline forward, and the reverse buckling wheel 104 will be raised to tightly buckle on the bottom surface of the flange 401 to realize the anti-overturning effect.

[0040] Compared with the prior art, the technical effect of the utility model lies in:

[0041] The reverse buckling wheel 104 cooperates with the bottom surface of the flange 401 of the built box girder 400 to prevent overturning during the walking process of the main truss 200, and the track matched with the reverse buckling wheel 104 is not needed, so that the structure is simple, the process of repeatedly disassembling and assembling a large number of pre-buried parts for installing the track is omitted, and the utility model has the advantages of low cost and convenient installation and construction; the reverse buckling wheel 104 directly cooperates with the bottom surface of the flange 401 of the built box girder 400, and there is no problem of deformation or fracture of the existing track connection structure, so that the reliability of anti-overturning is high.

[0042] Finally, it should be pointed out that: the above implementation manners are only used to illustrate the technical scheme of the utility model, rather than limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model embodiments.

Claims

1. An anti-overturning mechanism for a reverse-buckle wheel, characterized by, The rear beam body comprises a rear cross beam, a rear bow beam and a rear mounting beam. The rear cross beam is arranged above the built box girder and presses the rear part of the main truss of the bridge building machine, the rear bow beam is arranged on both sides of the rear cross beam, the upper end of the rear bow beam is fixedly connected with the rear cross beam, the lower end of the rear bow beam extends below the flange of the built box girder, the rear mounting beam is connected with the rear bow beam, and the rear mounting beam is provided with a reverse buckle wheel for cooperating with the bottom surface of the flange of the built box girder. The first connecting piece is further arranged to enable the rear beam body to synchronously walk with the main truss.

2. The anti-overturning mechanism of a reverse wheel according to claim 1, characterized in that, A plurality of pin holes are arranged on the rear bow beam in the vertical direction, and the rear mounting beam is connected with the rear bow beam through a positioning pin penetrating the pin hole, so that the distance between the reverse buckle wheel and the bottom surface of the flange of the built box girder can be adjusted.

3. The anti-overturning mechanism of claim 1, wherein The reverse buckle wheel comprises a wheel seat and a plurality of wheel bodies, the wheel seat is fixedly connected with the rear mounting beam, and the plurality of wheel bodies are connected with the wheel seat through rotating shafts.

4. The anti-overturning mechanism of claim 1, wherein The main truss is connected with a curtain in the middle part, the curtain is connected with a middle beam body on both sides, the middle beam body comprises a middle bow beam and a middle mounting beam, and the middle mounting beam is connected with a sliding beam. The first connecting piece is two groups of connecting rods, one group of connecting rods connects the rear bow beam and the middle bow beam, and the other group of connecting rods connects the rear mounting beam and the sliding beam.

5. The anti-overturning mechanism of claim 1, wherein The rear cross beam is connected with the built box girder through anchor connection of the fine rolled threaded steel.

6. The anti-overturning mechanism of claim 1, wherein The rear pressing beam is further arranged at the rear part of the main truss of the bridge building machine, and the rear pressing beam is connected with the built box girder through anchor connection of the fine rolled threaded steel.

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