Reverse jacking and limiting structure for deck type box girder forming machine

Abstract

The invention relates to a reverse jacking and limiting structure for a deck type box girder forming machine. The device comprises a main beam, and lower cross beams extending to the lower sides of two flange plates of a bridge are symmetrically arranged on the two sides of the main beam; each reverse jacking device comprises a mounting seat mounted on the lower cross beam, an adjusting support mounted on the mounting seat, a roller support mounted on the adjusting support and a reverse jacking wheel rotationally connected to the roller support; the longitudinal distance of the adjusting support relative to the lower cross beam is adjustable; and the two limiting devices are symmetrically arranged along the longitudinal section of the bridge, and each limiting device comprises a transverse limiting wheel which is installed on the lower cross beam and can be telescopically adjusted in the direction of a web of the relative bridge. The walking device can adapt to walking of the cantilever beam building machine, deviation during walking of the cantilever beam building machine is prevented, the overturning risk during construction is reduced, the working efficiency is improved, and it is guaranteed that the beam building machine walks accurately and reliably.

Description

Technical Field

[0001] The invention relates to the technical field of bridge-building equipment, in particular to an anti-top and limiting structure for an upper-bearing box-beam type beam-building machine. Background Art

[0002] In response to the requirements of intelligent construction of high-speed railway projects and to improve the automation, intelligence, rapidity and safety of high-speed railway cantilever continuous beams, the emergence of cantilever intelligent beam-making machines has made the construction methods diversified and automated, solving the shortcomings of poor stability of traditional hanging basket structures, low intelligence levels, and difficulty in controlling construction precision. The existing cantilever intelligent beam-making machines use a symmetrical, balanced, and segmented method to cast concrete. Before pouring, the cantilever beam-making machine must be in place and anchored in place before pouring.

[0003] However, during the operation, due to the certain inclination of the bridge flange plate, the traditional top-supported box girder construction machine is prone to deviation, resulting in the equipment not being able to move in place and unable to carry out the next step of concrete pouring. On the other hand, the traditional beam construction machine needs to anchor the running beam before the whole machine can move forward, which is cumbersome to operate. Summary of the invention

[0004] To this end, the present invention provides an anti-top and limiting structure for a top-supported box-girder type beam-making machine, which can adapt to the travel of the cantilever beam-making machine, prevent its deviation during travel and reduce the risk of overturning during construction, improve work efficiency, and ensure that the beam-making machine travels accurately and reliably.

[0005] In order to solve the above technical problems, the present invention provides a top-reverse and limit structure for a top-supported box-beam beam-making machine, comprising: A main beam, spanning the bridge and running on the top surface of the bridge, with lower cross beams symmetrically arranged on both sides of the main beam and extending to the lower sides of two flange plates of the bridge respectively; Two anti-top devices are symmetrically arranged along the longitudinal section of the bridge, each of the anti-top devices comprises a mounting seat mounted on the lower cross beam, an adjusting support mounted on the mounting seat, a roller support mounted on the adjusting support, and an anti-top wheel rotatably connected to the roller support; wherein the longitudinal distance of the adjusting support relative to the lower cross beam is adjustable, the roller support is freely rotatable relative to the adjusting support and can make the axis of the anti-top wheel be in a position parallel to the bottom surface of the flange plate, so that the anti-top wheel is in rolling contact with the bottom surface of the flange plate; Two limiting devices are symmetrically arranged along the longitudinal section of the bridge. Each of the limiting devices includes a transverse limiting wheel installed on the lower cross beam and telescopically adjustable along the direction relative to the web of the bridge. The transverse limiting wheel can roll in contact with the web of the bridge.

[0006] In one embodiment of the present invention, a longitudinal adjustment component is further included, wherein the adjustment support is slidably connected to the mounting seat, and the longitudinal adjustment component includes a first screw connected between the adjustment support and the mounting seat and a first locking nut connected to the first screw.

[0007] In one embodiment of the present invention, the roller support includes a mounting beam and a first rotating support arranged in the middle of the mounting beam, the adjustment support is provided with a second rotating support, and a pin is installed between the first rotating support and the second rotating support.

[0008] In one embodiment of the present invention, two groups of anti-top wheels are provided and symmetrically mounted on the mounting beam.

[0009] In one embodiment of the present invention, each set of the anti-top wheels includes two wheels arranged side by side.

[0010] In one embodiment of the present invention, it also includes a lateral adjustment component, the limiting device also includes a fixed seat and a movable seat, the fixed seat is installed on the lower cross beam, the lateral limiting wheel is rotatably connected to the movable seat, the movable seat is slidably connected to the fixed seat, and the lateral adjustment component includes a second screw connected between the fixed seat and the movable seat and a second locking nut connected to the second screw.

[0011] In one embodiment of the present invention, the anti-top wheel and the lateral limiting wheel are both rubber wheels.

[0012] In one embodiment of the present invention, a traveling system is provided between the main beam and the top surface of the bridge.

[0013] The above technical solution of the present invention has the following advantages compared with the prior art: The anti-top and limit structure for the top-supported box-beam type beam-making machine of the present invention can realize running by setting an anti-top device and adaptively adapting to the angle of the flange plate. And when the beam-making machine is running, it can be stressed to reduce the risk of overturning during construction; by setting a limit mechanism, it can limit the left and right positions when the beam-making machine moves forward, preventing the equipment from going off track and being unfavorable to construction.

[0014] The anti-top device of the present invention ensures that the beam-making machine can fit closely to the bridge body during running through rolling contact with the flange plate of the bridge, thereby preventing the occurrence of deviation, effectively improving the running stability of the equipment and ensuring accurate and reliable running; the rolling friction design between the anti-top wheel and the flange plate of the bridge, and between the lateral limit wheel and the web of the bridge, reduces frictional resistance, reduces the energy consumption required for equipment operation, and improves work efficiency; and the anti-top wheel is subjected to vertical upward pressure during running and moves along the flange plate, thereby preventing the beam-making machine from tipping over and improving the safety of the construction process.

[0015] The present invention avoids the need for anchoring the traveling beams of traditional beam-making machines during traveling, eliminates the need for complicated anchoring operations during traveling, simplifies the construction process, and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the arrangement of the anti-top and limiting structures of the top-supported box-beam type beam-making machine according to the present invention.

[0018] Figure 2 It is a front view schematic diagram of the anti-top device of the present invention.

[0019] Figure 3 It is a side view schematic diagram of the anti-top device of the present invention.

[0020] Figure 4 It is a top view schematic diagram of the anti-top device of the present invention.

[0021] Figure 5 It is a schematic diagram of the anti-top device of the present invention when it is working.

[0022] Figure 6 It is a structural schematic diagram of the limiting device of the present invention.

[0023] Description of the Figures in the Specification: 1. Main beam; 11. Lower beam; 2. Anti-top device; 21. Mounting seat; 22. Adjusting support; 221. Second rotating support; 23. Roller support; 231. Mounting beam; 232. First rotating support; 24. Anti-top wheel; 25. First screw rod; 26. First locking nut; 3. Limiting device; 31. Horizontal limiting wheel; 32. Fixed seat; 33. Moving seat; 34. Second screw rod; 35. Second locking nut; 4. Bridge; 41. Flange plate; 42. Web plate; 5. Traveling system; 6. Anchoring system. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0026] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0028] Reference Figures 1 to 6 As shown, the present invention is a top-reverse and limit structure for a top-supported box-beam beam-making machine, comprising: The main beam 1 is in an inverted U shape, spanning the bridge 4 and running on the top surface of the bridge 4. The lower cross beams 11 extending to the lower sides of the two flange plates 41 of the bridge 4 are symmetrically arranged on both sides of the main beam 1; the lower cross beams 11 symmetrically arranged on both sides of the main beam 1 ensure the balance of force on the left and right sides, prevent the equipment from deflecting or shaking due to asymmetric force, and improve the stability and safety of running; Two anti-top devices 2 are symmetrically arranged along the longitudinal section of the bridge 4, each of the anti-top devices 2 includes a mounting seat 21 mounted on the lower cross beam 11, an adjusting support 22 mounted on the mounting seat 21, a roller support 23 mounted on the adjusting support 22, and an anti-top wheel 24 rotatably connected to the roller support 23; wherein the longitudinal distance of the adjusting support 22 relative to the lower cross beam 11 is adjustable, the roller support 23 can rotate freely relative to the adjusting support 22 and can make the axis of the anti-top wheel 24 be in a position parallel to the bottom surface of the flange plate 41, so that the anti-top wheel 24 is in rolling contact with the bottom surface of the flange plate 41; the free rotation function of the roller support 23 enables the anti-top wheel 24 to automatically swing when the flange plate 41 of the bridge 4 has an inclination angle, adapt to the actual inclination of the bridge 4, ensure uninterrupted rolling contact, and enhance the adaptability and reliability of the equipment; Two limiting devices 3 are symmetrically arranged along the longitudinal section of the bridge 4. Each limiting device 3 includes a transverse limiting wheel 31 installed on the lower cross beam 11 and telescopically adjustable along the direction relative to the web 42 of the bridge 4. The transverse limiting wheel 31 can be in rolling contact with the web 42 of the bridge 4.

[0029] Through the above arrangement, the contact between the anti-top wheel 24 and the flange plate 41 can achieve rolling friction and reduce friction resistance. Since the flange plate 41 has an inclined angle, the anti-top wheel 24 can swing relative to the bridge body, so that the axis of the anti-top wheel 24 is parallel to the bottom surface of the flange plate 41, and a tight fit can be achieved when the beam-making machine is running. The transverse limiting wheel 31 is in close contact with the webs 42 on both sides of the bridge 4, ensuring that the beam-making machine does not deviate when running.

[0030] In one embodiment, referring to Figure 3 As shown, it also includes a longitudinal adjustment component, the adjustment support 22 is slidably connected to the mounting seat 21, and the longitudinal adjustment component includes a first screw rod 25 connected between the adjustment support 22 and the mounting seat 21 and a first locking nut 26 connected to the first screw rod 25.

[0031] The longitudinal adjustment assembly realizes the sliding connection of the adjustment support 22 through the screw rod and the locking nut, so that the longitudinal position of the anti-top device 2 can be flexibly adjusted to meet the needs of different construction stages or bridge 4 structures. It also makes the adjustment process simple and fast, reduces the adjustment time and labor cost, and improves the construction efficiency.

[0032] In one embodiment, referring to Figure 3 As shown, the roller support 23 includes a mounting beam 231 and a first rotating support 232 arranged in the middle of the mounting beam 231 , and the adjustment support 22 is provided with a second rotating support 221 , and a pin is installed between the first rotating support 232 and the second rotating support 221 .

[0033] In one embodiment, referring to Figure 4 As shown, the anti-top wheels 24 are provided in two groups and are symmetrically installed on the mounting beam 231, and each group of the anti-top wheels 24 includes two anti-top wheels arranged side by side. The design of the double group of anti-top wheels 24 increases the contact points, expands the contact area with the flange plate 41 of the bridge 4, disperses the pressure, improves the overall bearing capacity, and ensures that the equipment can still operate stably under high load.

[0034] In one embodiment, referring to Figure 5 As shown, it also includes a lateral adjustment component, the limiting device 3 also includes a fixed seat 32 and a movable seat 33, the fixed seat 32 is installed on the lower cross beam 11, the lateral limiting wheel 31 is rotatably connected to the movable seat 33, and the movable seat 33 is slidably connected to the fixed seat 32, and the lateral adjustment component includes a second screw 34 connected between the fixed seat 32 and the movable seat 33 and a second locking nut 35 connected to the second screw 34.

[0035] The lateral adjustment assembly realizes the sliding connection of the movable seat 33 through a screw and a locking nut, so that the position of the lateral limiting wheel 31 can be accurately adjusted according to the specific situation of the web 42 of the bridge 4, ensuring that the lateral limiting wheel 31 is always in close contact with the web 42 of the bridge 4.

[0036] In one embodiment, the anti-top wheel 24 and the lateral limiting wheel 31 are both rubber wheels, which have good buffering and shock absorbing performance.

[0037] Reference Figure 1 As shown, a running system 5 is provided between the main beam 1 and the top surface of the bridge 4. The running system 5 provides stable support through structures such as slide seats and guide rails to ensure that the beam-making machine can move smoothly on the top surface of the bridge 4 and prevent the equipment from tilting or shaking. By equipping a driving device (such as a hydraulic motor, an electric motor, etc.), the beam-making machine is driven to move along the top surface of the bridge 4 through a power transmission mechanism to achieve continuous beam segment casting.

[0038] When the present invention is working: The anti-top device 2 is installed on the upper part of the lower cross beam 11 of the main beam 1. By adjusting the longitudinal adjustment component, the longitudinal (vertical) height of the anti-top wheel 24 is adjusted to ensure that the anti-top wheel 24 is in rolling contact with the flange plate 41 of the bridge 4, and then the fixed height of the first screw 25 is tightened.

[0039] The limiting device 3 is installed on the inner side of the main beam 1. By adjusting the lateral adjustment component, the lateral limiting wheel 31 is in contact with the web 42 of the bridge 4. The main beam 1 is connected to the slide seat of the running system 5 to complete the installation of the entire device.

[0040] When the beam-making machine starts to move, the anti-pushing device 2 pushes against the flange plate 41 of the bridge 4, and the limiting device 3 pushes against the web plate 42 of the bridge 4. At this time, the running beam bears the pressure of the whole machine, and no anchoring operation is required. Under the action of vertical upward pressure, the anti-pushing wheel 24 moves along the flange plate 41 to prevent the beam-making machine from tipping over. The lateral limiting wheels 31 are fixed on both sides to ensure that the beam-making machine will not be out of sync or deviate during the forward movement.

[0041] During the movement of the beam-making machine, the anti-top device 2 is adjusted to keep the anti-top wheel 24 in rolling contact with the poured concrete flange plate 41, so as to keep the beam-making machine in a horizontal state. Remove the wedge block of the anchoring system 6, use the jack of the anchoring system 6 to lift the upper anchor beam, drive the anchor rod to rise, and make the anchor rod leave the concrete beam surface by a preset height (about 100mm). The front slide is pushed by the running system 5 to push the whole machine and the anti-top wheel 24 forward. At this time, the anti-top wheel 24 continues to be stressed and maintains rolling contact with the flange plate 41. The lateral limiting wheel 31 continues to be in close contact with the webs 42 on both sides of the bridge 4, ensuring that the beam-making machine maintains stable movement and does not deviate during the forward movement.

[0042] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A top-reverse and limit structure for a top-supported box-beam beam-making machine, characterized in that: include: A main beam (1) spans the bridge (4) and runs on the top surface of the bridge (4), and lower cross beams (11) are symmetrically arranged on both sides of the main beam (1) and extend to the lower sides of two flange plates (41) of the bridge (4) respectively; Two anti-top devices (2) are symmetrically arranged along the longitudinal section of the bridge (4), each of the anti-top devices (2) comprising a mounting seat (21) mounted on the lower cross beam (11), an adjustment support (22) mounted on the mounting seat (21), a roller support (23) mounted on the adjustment support (22), and an anti-top wheel (24) rotatably connected to the roller support (23); wherein the longitudinal distance of the adjustment support (22) relative to the lower cross beam (11) is adjustable, the roller support (23) is freely rotatable relative to the adjustment support (22) and can make the axis of the anti-top wheel (24) be in a position parallel to the bottom surface of the flange plate (41), so that the anti-top wheel (24) is in rolling contact with the bottom surface of the flange plate (41); Two limiting devices (3) are symmetrically arranged along the longitudinal section of the bridge (4), and each limiting device (3) comprises a transverse limiting wheel (31) installed on the lower cross beam (11) and telescopically adjustable in a direction relative to the web (42) of the bridge (4), and the transverse limiting wheel (31) is capable of rolling contact with the web (42) of the bridge (4).

2. The anti-top and limit structure for a deck box beam making machine according to claim 1, characterized in that: It also includes a longitudinal adjustment component, the adjustment support (22) is slidably connected to the mounting seat (21), and the longitudinal adjustment component includes a first screw rod (25) connected between the adjustment support (22) and the mounting seat (21) and a first locking nut (26) connected to the first screw rod (25).

3. The anti-top and limit structure for a deck box beam making machine according to claim 1, characterized in that: The roller support (23) comprises a mounting beam (231) and a first rotating support (232) arranged in the middle of the mounting beam (231); the adjustment support (22) is provided with a second rotating support (221); and a pin is installed between the first rotating support (232) and the second rotating support (221).

4. The anti-top and limit structure for a deck box beam making machine according to claim 3, characterized in that: The anti-top wheels (24) are provided in two groups and are symmetrically mounted on the mounting beam (231).

5. The anti-top and limit structure for a deck box beam making machine according to claim 4, characterized in that: Each set of the anti-top wheels (24) comprises two wheels arranged side by side.

6. The anti-top and limit structure for a deck box beam making machine according to claim 1, characterized in that: The invention also comprises a transverse adjustment component, wherein the limiting device (3) further comprises a fixed seat (32) and a movable seat (33), wherein the fixed seat (32) is mounted on the lower cross beam (11), the transverse limiting wheel (31) is rotatably connected to the movable seat (33), and the movable seat (33) is slidably connected to the fixed seat (32), and the transverse adjustment component comprises a second screw rod (34) connected between the fixed seat (32) and the movable seat (33) and a second locking nut (35) connected to the second screw rod (34).

7. The anti-top and limit structure for a deck box beam making machine according to claim 1, characterized in that: The anti-top wheel (24) and the lateral limiting wheel (31) are both rubber wheels.

8. The anti-top and limit structure for a deck box beam making machine according to claim 1, characterized in that: A running system (5) is provided between the main beam (1) and the top surface of the bridge (4).

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