Support protection plate system for protecting running tires of bridge girder erection machine

Abstract

The utility model discloses a support protection plate system for protecting running tires of a bridge girder erection machine, and belongs to the technical field of road and bridge construction equipment. The device comprises a plurality of hydraulic swing arms arranged on a third column of the bridge erecting machine; a tire group is mounted on the lower side of the hydraulic swing arm through a bracket; the hydraulic swing arm can drive the support and the tire set to swing on the horizontal plane. The device is characterized in that a positioning plate is mounted on the end face, facing the outer side, of the bracket; the positioning plate is a cantilever component, and a movable rod is rotatably mounted at the extending end of the positioning plate; the movable rod naturally droops in the vertical direction, and a protection plate is installed below the movable rod. The length of the protection plate is consistent with the total length of the tire group; according to the utility model, the problem that the side part of the tire is scratched because the tire on the third column of the current bridge girder erection machine is easily and directly contacted with the embedded steel bar on the top surface of the box girder during transverse movement is effectively solved.

Description

Technical Field

[0001] This utility model relates to the technical field of road and bridge construction equipment and devices, specifically to a support guard plate system for protecting the running tires of a bridge erecting machine. Background Technology

[0002] During the bridge erection process, the No. 3 column of the bridge erecting machine needs to slightly lift the tire bracket and the tire below through the hydraulic mechanism, and move the tire bracket along the width of the box girder so that the tire can get as close as possible to the pre-embedded steel bars exposed on the box girder. However, due to the inability to achieve complete accuracy in the control of the hydraulic equipment, the outer side of the tire often scrapes against the pre-embedded steel bars, which rapidly increases the tire damage rate. This is the main problem that needs to be solved at present. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a support guard plate system for protecting the traveling tires of a bridge erecting machine, so as to solve the problem that the tires on the No. 3 column of the current bridge erecting machine are prone to direct contact with the pre-embedded steel bars on the top surface of the box girder during lateral movement, resulting in scratches on the side of the tires.

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A support guard plate system for protecting the traveling tires of a bridge erecting machine; it includes several hydraulic swing arms mounted on the No. 3 column of the bridge erecting machine; a tire assembly is mounted on the lower side of the hydraulic swing arms via a bracket; the hydraulic swing arms can drive the bracket and the tire assembly to swing horizontally; a positioning plate is mounted on the outer end face of the bracket; the positioning plate is a cantilever component, and a movable rod is rotatably mounted on the extended end of the positioning plate; the movable rod hangs naturally vertically, and a protective plate is mounted below the movable rod; the length of the protective plate is consistent with the total length of the tire assembly.

[0006] Preferably, there is one and only one protective plate corresponding to each bracket; the two protective plates on two adjacent brackets do not interfere with each other.

[0007] Preferably, each bracket has no fewer than two positioning plates, and these positioning plates are evenly and symmetrically distributed on the bracket.

[0008] Preferably, the positioning plate is an angle steel structure with an L-shaped cross-section; a hydraulic support is also provided on the outer end face of the bracket; the tail of the positioning plate is fixed on the side wall of the hydraulic support; and a reinforcing rib is provided between the hydraulic support or bracket and the positioning plate.

[0009] Furthermore, a limit rod is provided at the upper middle part of the movable rod; the limit rod is a straight rod component arranged diagonally upward; when the movable rod rotates towards the tire assembly side, the top of the limit rod can be perpendicularly pressed against the reinforcing rib.

[0010] Preferably, the lower end of the movable rod extends to the axial height of the tire assembly; a turnbuckle is hinged to the lower end of the movable rod; the other end of the turnbuckle is connected to the protective plate via a locating pin.

[0011] Preferably, the protective plate is a strip-shaped structure with an L-shaped cross-section; the back side of the protective plate is positioned opposite to the outer end of the tire assembly; and the movable rod is connected to the upper top surface of the protective plate.

[0012] The beneficial effects of this utility model are reflected in the following aspects:

[0013] 1. Effective isolation and protection to prevent tire scratches: By setting a rotatable protective plate on the outside of the tire assembly, when the tire assembly moves laterally and approaches the pre-embedded steel bars of the box girder, the protective plate can contact the steel bars before the outer end of the tire, forming a barrier to directly block the pre-embedded steel bars from rubbing against the tire sidewall. This fundamentally solves the problem of tire sidewall scratches and high damage rate, and greatly extends the service life of the tire.

[0014] 2. Adaptive buffering and protection device body: The design of the movable rod means that the protective plate is not rigidly fixed; when the protective plate comes into contact with the embedded steel bars or other obstacles, the movable rod can rotate around the positioning plate, causing the protective plate to deflect; this rotatable structure provides a certain buffering effect, which can effectively absorb the impact force, prevent the protective plate from being deformed and damaged due to hard collision, and also avoid transmitting excessive impact force to the support and hydraulic mechanism, thus protecting the stability of the entire support system.

[0015] 3. Limit protection to prevent excessive deflection: By setting a limit rod, when the protective plate is pressed and deflected towards the tire pack, the limit rod will abut against the reinforcing rib, effectively preventing the protective plate from rotating excessively; ensuring that the protective plate always remains in an effective working position, and will not lose its protective function or accidentally collide with the tire pack itself due to excessive deflection, thus ensuring the reliability of the protection and the safety of the device itself.

[0016] 5. Convenient adjustment and strong adaptability: The vertical angle and ground clearance of the protective plate can be easily adjusted by connecting the movable rod and the protective plate with turnbuckles, ensuring that its lower end can effectively cover the outer side of the tire and adapt to different working conditions or changes in position after tire wear.

[0017] 6. Easy to install and highly practical: The main components of this guard plate system are installed on the outer end face of the existing support, making full use of the existing structure. There is no need for large-scale modification of the main structure of the bridge erecting machine. The installation and maintenance are relatively simple, and it has good engineering practicality and promotion value. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention in an embodiment;

[0019] Figure 2 yes Figure 1 Sectional view along line AA;

[0020] Figure 3 yes Figure 2 A schematic diagram showing the exposed pre-embedded steel bars when the device is close to the box girder;

[0021] Explanation of reference numerals in the attached drawings: 1. Hydraulic swing arm, 2. Bracket, 3. Tire assembly, 4. Positioning plate, 5. Movable rod, 6. Protective plate, 7. Hydraulic support, 8. Reinforcing rib, 9. Limiting rod, 10. Turnbuckle. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] Example:

[0024] Reference Figure 1 This embodiment provides a support guard plate system for protecting the traveling tires of a bridge erecting machine. It includes several hydraulic swing arms 1 mounted on the No. 3 column of the bridge erecting machine. Tire sets 3 are mounted on the lower side of the hydraulic swing arms 1 via brackets 2. The hydraulic swing arms 1 can drive the brackets 2 and tire sets 3 to swing horizontally. A positioning plate 4 is mounted on the outer end face of the brackets 2. The positioning plate 4 is a cantilever component, and a movable rod 5 is rotatably mounted on the extended end of the positioning plate 4. The movable rod 5 hangs down naturally in the vertical direction, and a protective plate 6 is mounted below the movable rod 5. The length of the protective plate 6 is consistent with the total length of the tire sets 3. This equal-length design ensures that the protective plate 6 can completely cover the entire outer end face of the tire sets 3.

[0025] There is one and only one protective plate 6 corresponding to each bracket 2; the two protective plates 6 on two adjacent brackets 2 do not interfere with each other; this one-to-one independent design ensures that each tire group can be effectively protected, while avoiding collision interference between adjacent protective plates when swinging or under pressure, ensuring the reliability of system operation.

[0026] Each bracket 2 has at least two positioning plates 4, and these positioning plates 4 are evenly and symmetrically distributed on the bracket 2. In this embodiment, each bracket is provided with two positioning plates 4, and the two positioning plates are also symmetrically arranged relative to the protective plate below. The symmetrically distributed multiple positioning plates 4 provide a stable and balanced support point for the movable rod 5, effectively dispersing the impact load on the protective plate 6, preventing excessive force on a single point from causing structural deformation or damage, and enhancing the overall rigidity and stability of the system.

[0027] The positioning plate 4 is an L-shaped angle steel structure; a hydraulic support 7 is also provided on the outer end face of the bracket 2; the tail of the positioning plate 4 is fixed to the side wall of the hydraulic support 7; a reinforcing rib 8 is provided between the hydraulic support 7 or the bracket 2 and the positioning plate 4. In this embodiment, the hydraulic support is a platform arranged vertically. It should be understood that the function of the hydraulic support 7 corresponding to the one in this application on the No. 3 column of the bridge erecting machine is to serve as a support structure for the hydraulic power equipment that controls the deflection of the tire seat. The technical solution involved in this embodiment does not require the function of controlling the deflection of the tire seat, so the specific structural composition of the hydraulic support is not described in detail. Those skilled in the art can make reasonable inferences based on the structural characteristics of the No. 3 column of a conventional bridge erecting machine. A screw is welded and fixed on the end face of the positioning plate, and a through hole is opened at the upper end of the movable rod 5. After the movable rod 5 is fitted onto the screw through the through hole, it is limited by a nut.

[0028] A limiting rod 9 is also provided at the upper middle part of the movable rod 5; the limiting rod 9 is a straight rod member arranged obliquely upward; when the movable rod 5 rotates towards the tire assembly 3, the top end of the limiting rod 9 can abut vertically against the reinforcing rib 8. In this embodiment, a pressure-bearing member with a certain elasticity is also installed on the reinforcing rib 8 at the position where it connects with the limiting rod. The limiting rod 9 can form a triangular support structure with the movable rod and the reinforcing rib, improving the overall stability.

[0029] The lower end of the movable rod 5 extends to the axial height of the tire assembly 3; a turnbuckle 10 is hinged to the lower end of the movable rod 5; the other end of the turnbuckle 10 is connected to the protective plate 6 via a locating pin. By rotating the adjusting nut in the middle of the turnbuckle 10, its effective length can be changed, thereby precisely adjusting the angle of the protective plate 6 relative to the movable rod 5 and the height of the lower edge of the protective plate 6 from the ground. This design allows the protective plate 6 to be adjusted to the optimal working position, ensuring that its lower end effectively covers the outer side of the tire assembly 3, guaranteeing the protective effect.

[0030] The protective plate 6 is a strip-shaped structure with an L-shaped cross-section; the back side of the protective plate 6 is opposite to the outer end of the tire assembly 3; the movable rod 5 is connected to the upper top surface of the protective plate 6. In this embodiment, a pair of ear plates with through holes are provided on the upper top of the protective plate 6, and the lower part of the turnbuckle 10 is connected to the ear plates by a positioning pin.

[0031] Under its own weight and the adjustment of the turnbuckle 10, the protective plate 6 remains vertically hanging down, with its L-shaped outer edge located on the outer end of the tire assembly 3.

[0032] When using the utility model device in this embodiment, it is only necessary to slightly lift the bracket 2 and the tire assembly 3 away from the top surface of the box girder, and then operate the hydraulic swing arm 1 to slowly move it towards the side of the pre-embedded steel bar exposed on the box girder. During this process, the outer side of the lower protective plate first attaches to the side of the pre-embedded steel bar. After that, as the tire assembly approaches the protective plate, the movable rod and turnbuckle will rotate accordingly. When the tire assembly is attached to the protective plate, the top of the limiting rod 9 just abuts against the reinforcing rib 8; thus completing the overall movement of the tire assembly.

Claims

1. A support guard plate system for protecting the traveling tires of a bridge erecting machine, comprising a plurality of hydraulic swing arms (1) mounted on the No. 3 column of the bridge erecting machine; a tire assembly (3) is mounted on the lower side of the hydraulic swing arms (1) via a support (2); the hydraulic swing arms (1) are capable of driving the support (2) and the tire assembly (3) to swing in a horizontal plane; characterized in that: A positioning plate (4) is installed on the outer end face of the bracket (2); the positioning plate (4) is a cantilever component, and a movable rod (5) is rotatably installed on the extended end of the positioning plate (4); the movable rod (5) hangs down naturally in the vertical direction, and a protective plate (6) is installed below the movable rod (5); the length of the protective plate (6) is consistent with the total length of the tire assembly (3).

2. The support guard plate system for protecting the running tires of a bridge erecting machine according to claim 1, characterized in that: There is one and only one protective plate (6) on each bracket (2); the two protective plates (6) on two adjacent brackets (2) do not interfere with each other.

3. The support guard plate system for protecting the running tires of a bridge erecting machine according to claim 1, characterized in that: Each bracket (2) has at least two positioning plates (4), and these positioning plates (4) are evenly and symmetrically distributed on the bracket (2).

4. The support guard plate system for protecting the running tires of a bridge erecting machine according to claim 1, characterized in that: The positioning plate (4) is an angle steel structure with an L-shaped cross section; a hydraulic support (7) is also provided on the outer end face of the bracket (2); the tail of the positioning plate (4) is fixed on the side wall of the hydraulic support (7); a reinforcing rib (8) is provided between the hydraulic support (7) or the bracket (2) and the positioning plate (4).

5. The support guard plate system for protecting the running tires of a bridge erecting machine according to claim 4, characterized in that: A limiting rod (9) is also provided at the upper part of the middle of the movable rod (5); the limiting rod (9) is a straight rod component arranged diagonally upward; when the movable rod (5) rotates to the side of the tire assembly (3), the top of the limiting rod (9) can be perpendicularly pressed against the reinforcing rib (8).

6. The support guard plate system for protecting the running tires of a bridge erecting machine according to claim 1, characterized in that: The lower end of the movable rod (5) extends to the axial height of the tire assembly (3); a turnbuckle (10) is hinged to the lower end of the movable rod (5); the other end of the turnbuckle (10) is connected to the protective plate (6) by a locating pin.

7. The support guard plate system for protecting the running tires of a bridge erecting machine according to claim 1, characterized in that: The protective plate (6) is a strip-shaped structure with an L-shaped cross section; the back side of the protective plate (6) is opposite to the outer end of the tire assembly (3); the movable rod (5) is connected to the top surface of the protective plate (6).

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