A walking type transverse bridge erecting machine
By designing a step-type cross-width bridge staircase, using structures such as main truss beams, legs and truss vehicles, the rapid, safe and economical movement of the bridge staircase is achieved, and the problems of cumbersome, time-consuming and high cost of the bridge staircase movement process in the existing technology are solved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202421542280.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
During the construction of existing bridges, the movement process of the bridge builder is cumbersome, time-consuming, expensive, and has safety risks, which affects the construction efficiency and construction period.
A step-type horizontally moving cross-bridge rigging machine is designed, using two parallel main truss beams, front temporary legs, rear legs, front legs, middle legs, track beams, turntables and truss trucks. The flexible movement and support of the rigging machine is achieved through hydraulic devices and electrical control systems.
The rapid, safe and economical cross-moving of the bridge rig has been achieved, shortened the construction period, reduced costs, and improved construction efficiency and safety.
Smart Images
Figure CN222744823U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a bridge construction equipment, more specifically, it relates to a walking type transverse bridge erecting machine. Background Art
[0002] In order to accommodate more people and vehicles and prevent congestion on the bridge deck, current bridges usually include two beams. During the bridge construction process, when the bridge erection machine completes the construction of one beam, it needs to move to the other beam. In traditional processes, the movement of the bridge erection machine usually includes the following three solutions:
[0003] The first option is to move the bridge erection machine forward along the erected bridge to the back of the platform below the line, and disassemble and turn around to move horizontally. The above option is greatly affected by the site, requires a longer length of the starting back of the platform, and takes a long time, which affects the construction period of the bridge;
[0004] The second option is to dismantle the bridge erection machine as a whole, and transfer the parts of the bridge erection machine to another cast-in-place bridge deck by crane and transport vehicle for reassembly. The above solution has cumbersome procedures and requires high costs.
[0005] Option three is to drive foundation piles in the water of the central isolation zone and set up two steel platforms with Bailey beams on them. The Bailey beams are used as transition support points for the bridge-building machine to move horizontally over the width. The above option has a large amount of engineering work and a high degree of difficulty, and the process is cumbersome. At the same time, it requires additional related disposal costs. In addition, it takes a long time to build the platform, which will delay the construction period. After the platform is built, the foundation bearing capacity needs to be tested. At the same time, there will be safety risks when the bridge-building machine moves horizontally over the width. Summary of the invention
[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide a walking-type transverse bridge erecting machine with high construction efficiency, short construction period, low cost and safe and reliable width-changing process.
[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a walking-type transverse-span bridge-building machine, comprising two parallel main truss guide beams, a front temporary support leg arranged at one end of the main truss guide beam, and a rear support leg arranged at the other end of the main truss guide beam, a front support leg and a middle support leg are further provided at the lower end of the main truss guide beam, a track beam is further provided at the bottom of the front support leg and the middle support leg, the front support leg and the middle support leg can slide along the track beam, a turntable is provided between the front support leg and the main truss guide beam, and between the middle support leg and the main truss guide beam, the turntable is used to adjust the overall rotation angle of the bridge-building machine, a transverse track is provided in the main truss guide beam, at least two truss vehicles are provided on the transverse track, the truss vehicle is used to balance the load relationship of the bridge-building machine, an electrical control system is further provided in the main truss guide beam, and the electrical control system is configured to control the movement of the front support leg and the middle support leg and the movement of the truss vehicle in the transverse track.
[0008] The present invention is further configured as follows: the front legs and the middle legs can slide on the main truss guide beam along its length direction, so as to adjust the fulcrum and the rotation center point during the width-changing process of the bridge erecting machine.
[0009] The present invention is further configured as follows: a plurality of fixing screws are provided on the front legs, the middle legs and the turntable, and the fixing screws are used to limit the sliding of the front legs and the middle legs on the track beam and the rotation of the turntable.
[0010] The present invention is further configured as follows: a slide rail is provided in the middle of the track beam, pulleys are provided at the bottom of the front legs and the middle legs, the position of the pulleys matches the position of the slide rail, and baffles are provided at both ends of the track beam.
[0011] The present invention is further configured as follows: a hydraulic device is also provided in the front temporary outrigger and the rear outrigger, and the front temporary outrigger and the rear outrigger are extended and retracted in the main truss guide beam through the hydraulic device, and can support the entire bridge erecting machine.
[0012] The present invention is further configured as follows: a plurality of limiting rods are provided at the upper end of the main truss guide beam, a rotating structure is provided at the connection between the limiting rods and the main truss guide beam, and the limiting rods and the rotating structure cooperate with each other to make the distance between the two main truss guide beams equal.
[0013] By adopting the above technical scheme, the main structure of the bridge-building machine is a multi-section truss connecting beam, which is easy to disassemble and assemble, convenient for transfer at the construction site, can be moved horizontally in one time, has strong wind resistance, can ensure safe operation, and through the turntable function of the bridge-building machine, the bridge-building machine is controlled to move horizontally between 0° and 45°, which is safe and reliable. Compared with the traditional bridge-building machine's width-changing operation, it takes less time, requires less cost, and has high efficiency of horizontal movement.
[0014] Furthermore, by arranging track beams at the lower ends of the front legs and the middle legs, the overall angle of the bridge-building machine can be adjusted through the lateral movement of the front legs and the middle legs. At the same time, the front legs and the middle legs are slidingly connected to the main truss guide beams to complete the movement of the bridge-building machine on the bridge deck. The turntable can control the offset angle of the bridge-building machine during the movement of the front legs and the middle legs, thereby increasing the service life of the metal at the connection. In addition, in order to prevent the distance between the main truss guide beams from changing during the rotation of the bridge-building machine, a plurality of limiting rods are provided at the upper ends of the truss guide beams, and a rotating structure is provided at the connection between the limiting rods and the main truss guide beams. During the lateral movement of the bridge-building machine, the main truss guide beam and the limiting rods are transformed from rectangles to quadrilaterals to prevent the distances between the two ends of the main truss guide beams from being different.
[0015] At the same time, by adjusting the width of each leg of the bridge-erecting machine in turn, when the bridge-erecting machine is adjusting the width, there are at least two groups of legs supporting the bridge-erecting machine throughout the whole process, so as to increase the stability of the overall width-changing process. Specifically, during the width-changing process of the front temporary legs, the front legs and the middle legs are used as supports for the bridge-erecting machine. Subsequently, the front legs and the middle legs are slid on the track beams to set the overall rotation angle of the bridge-erecting machine to 30°, and the bridge-erecting machine is controlled to move toward the target width of the bridge deck. When the front legs are adjusted horizontally, the front temporary legs are in a lowered supporting state. At this time, the legs supporting the bridge-erecting machine are the front temporary legs and the middle legs. After the front legs reach the target width of the bridge deck, the bridge-erecting machine is controlled to move horizontally. The bridge crane moves forward as a whole, so that the length of the bridge crane at the target bridge deck is greater than the length of the bridge crane at the original bridge deck. The front temporary support leg and the front support leg are used as the support of the bridge crane, and the middle support leg is moved horizontally over the width. After the middle support leg is moved over the width, the rear support leg cannot be moved over the width by sliding the main truss guide beam. The front support leg and the middle support leg need to be slid on the track beam, thereby driving the rotation of the main truss guide beam to achieve the lateral movement of the rear support leg. The overall movement efficiency is high, the bridge crane movement process is stable and has high safety. At the same time, in the process of lateral movement over the width, it is only necessary to use the crane during the transportation of the track beam, which reduces the project cost and simplifies the operation procedure.
[0016] Furthermore, since the positions of the front legs and the middle legs in the bridge-erecting machine are constantly changing, that is, the fulcrum of the bridge-erecting machine is constantly changing on the bridge-erecting machine, in order to ensure smooth operation of the bridge-erecting machine when it passes the width, the weights of both ends of the front legs and the middle legs need to be equal, specifically: the mass of the main truss guide beam on the left side of the fulcrum + the mass of the truss vehicle × the distance between the truss vehicle and the fulcrum = the mass of the main truss guide beam on the right side of the fulcrum + the mass of the truss vehicle × the distance between the truss vehicle and the fulcrum. At the same time, since some of the legs are in a retracted state during the transverse movement of the bridge-erecting machine, the remaining legs of the bridge-erecting machine cannot bear their own weight. In order to decompose the load of the bridge-erecting machine during its movement, sleepers are placed under the track beam at the lower end of the bridge-erecting machine. The load of the bridge-erecting machine can be decomposed after the bridge-erecting machine retracts the legs, thereby improving the safety of the bridge-erecting machine when it passes the width horizontally and extending the service life of the front legs and the middle legs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the specific structure of a bridge erecting machine dismantling a truss vehicle in accordance with an embodiment of a walking type transversely moving bridge erecting machine of the utility model;
[0018] Figure 2 It is a side view of a bridge erecting machine of an embodiment of a walking type transversely moving bridge erecting machine of the utility model;
[0019] The reference numerals in the figure are: 1. main truss guide beam; 2. front temporary support leg; 3. rear support leg; 4. front support leg; 5. middle support leg; 6. track beam; 7. turntable; 8. transverse track; 9. truss car; 10. electrical control system; 11. fixing screw; 12. slide rail; 13. pulley; 14. baffle; 15. hydraulic device; 16. limiting rod; 17. rotating structure. DETAILED DESCRIPTION
[0020] Reference Figure 1 to Figure 2 The utility model is further described in detail with respect to an embodiment of a walking type transversely moving bridge erecting machine.
[0021] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.
[0022] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.
[0023] A walking-type transversely shifting bridge-building machine comprises two parallel main truss guide beams 1, a front temporary support leg 2 arranged at one end of the main truss guide beam 1 and a rear support leg 3 arranged at the other end of the main truss guide beam 1, a front support leg 4 and a middle support leg 5 are further provided at the lower end of the main truss guide beam 1, a track beam 6 is further provided at the bottom of the front support leg 4 and the middle support leg 5, the front support leg 4 and the middle support leg 5 can slide along the track beam 6, a turntable 7 is provided between the front support leg 4 and the main truss guide beam 1, and between the middle support leg 5 and the main truss guide beam 1, the turntable 7 is used to adjust the overall rotation angle of the bridge-building machine, a transverse track 8 is provided in the main truss guide beam 1, at least two truss vehicles 9 are provided on the transverse track 8, the truss vehicle 9 is used to balance the load relationship of the bridge-building machine, an electrical control system 10 is further provided in the main truss guide beam 1, and the electrical control system 10 is configured to control the movement of the front support leg 4 and the middle support leg 5 and the movement of the truss vehicle 9 in the transverse track 8.
[0024] Furthermore, the front legs 4 and the middle legs 5 can slide on the main truss guide beam 1 along its length direction, and are used to adjust the fulcrum and the center of rotation of the bridge erecting machine during the width-changing process. At the same time, a plurality of fixing screws 11 are provided on the front legs 4, the middle legs 5 and the turntable 7. The fixing screws 11 are used to limit the sliding of the front legs 4 and the middle legs 5 on the track beam 6 and the rotation of the turntable 7. A slide rail 12 is provided in the middle of the track beam 6, and a pulley 13 is provided at the bottom of the front legs 4 and the middle legs 5. The position of the pulley 13 is consistent with the position of the slide rail 12. The position of the rail 12 matches that of the rail 12, baffles 14 are also provided at both ends of the track beam 6, hydraulic devices 15 are also provided in the front temporary legs 2 and the rear legs 3, the front temporary legs 2 and the rear legs 3 are extended and retracted in the main truss guide beam 1 through the hydraulic devices 15, and can support the bridge erection machine as a whole. A plurality of limiting rods 16 are provided at the upper end of the main truss guide beam 1, and a rotating structure 17 is provided at the connection between the limiting rods 16 and the main truss guide beam 1, and the limiting rods 16 and the rotating structure 17 cooperate with each other to make the distance between the two main truss guide beams 1 equal.
[0025] By adopting the above technical scheme, the main structure of the bridge-building machine is a multi-section truss connecting beam, which is easy to disassemble and assemble, convenient for transfer at the construction site, can be moved horizontally in one time, has strong wind resistance, can ensure safe operation, and through the turntable 7 function of the bridge-building machine, the bridge-building machine is controlled to move horizontally between 0° and 45°, which is safe and reliable. Compared with the traditional bridge-building machine's width-changing operation, it takes less time, requires less cost, and has high efficiency of horizontal movement.
[0026] Furthermore, by arranging a track beam 6 at the lower end of the front support leg 4 and the middle support leg 5, the overall angle of the bridge-building machine can be adjusted through the lateral movement of the front support leg 4 and the middle support leg 5. At the same time, the front support leg 4 and the middle support leg 5 are slidably connected to the main truss guide beam 1 to complete the movement of the bridge-building machine on the bridge deck. The turntable 7 can control the offset angle of the bridge-building machine during the movement of the front support leg 4 and the middle support leg 5, thereby increasing the service life of the metal at the connection. In addition, in order to prevent the distance between the main truss guide beams 1 from changing during the rotation of the bridge-building machine, a plurality of limiting rods 16 are provided at the upper end of the truss guide beam, and a rotating structure 17 is provided at the connection between the limiting rods 16 and the main truss guide beam 1. During the lateral movement of the bridge-building machine, the main truss guide beam 1 and the limiting rods 16 are transformed from a rectangle to a quadrilateral to prevent the distances between the two ends of the main truss guide beam 1 from being different.
[0027] At the same time, by adjusting the width of each leg of the bridge-building machine in turn, when the bridge-building machine adjusts the width, there are at least two groups of legs supporting the bridge-building machine throughout the whole process, so as to increase the stability of the whole process of adjusting the width. Specifically, during the process of the front temporary leg 2 adjusting the width, the front leg 4 and the middle leg 5 are used as the support of the bridge-building machine. Subsequently, the front leg 4 and the middle leg 5 slide on the track beam 6 to set the overall rotation angle of the bridge-building machine to 30°, and the bridge-building machine is controlled to move toward the target width of the bridge deck. When the front leg 4 is adjusted horizontally, the front temporary leg 2 is in a lowered supporting state. At this time, the legs supporting the bridge-building machine are the front temporary leg 2 and the middle leg 5. After the front leg 4 reaches the target width of the bridge deck, the bridge-building machine is controlled. The bridge crane moves forward as a whole, so that the length of the bridge crane at the target bridge deck is greater than the length of the bridge crane at the original bridge deck. The front temporary support leg 2 and the front support leg 4 are used as supports for the bridge crane, and the middle support leg 5 is moved horizontally. After the middle support leg 5 is moved horizontally, the rear support leg 3 cannot be moved horizontally by sliding the main truss guide beam 1. The front support leg 4 and the middle support leg 5 need to slide on the track beam 6, thereby driving the rotation of the main truss guide beam 1 to achieve the horizontal movement of the rear support leg 3. The overall movement efficiency is high, the bridge crane movement process is stable and has high safety. At the same time, in the process of horizontal movement, it is only necessary to use the crane during the transportation of the track beam 6, which reduces the engineering cost and simplifies the operation procedure.
[0028] In addition, since the positions of the front support leg 4 and the middle support leg 5 in the bridge-building machine are constantly changing, that is, the fulcrum of the bridge-building machine is constantly changing on the bridge-building machine, in order to ensure the smooth operation of the bridge-building machine when it passes the width, the weights at both ends of the front support leg 4 and the middle support leg 5 need to be equal, specifically: the mass of the main truss guide beam 1 on the left side of the fulcrum + the mass of the truss car 9 × the distance between the truss car 9 and the fulcrum = the mass of the main truss guide beam 1 on the right side of the fulcrum + the mass of the truss car 9 × the distance between the truss car 9 and the fulcrum. At the same time, since some of the legs are in a retracted state during the transverse movement of the bridge-building machine, the remaining legs of the bridge-building machine cannot bear their own weight. In order to decompose the load of the bridge-building machine during the movement of the bridge-building machine, sleepers are placed under the track beam 6 at the lower end of the bridge-building machine. The load of the bridge-building machine can be decomposed after the bridge-building machine retracts the legs, thereby improving the safety of the bridge-building machine when it passes the width horizontally and extending the service life of the front support leg 4 and the middle support leg 5.
[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.
Claims
1. A walking type transverse bridge erecting machine, characterized in that: The invention comprises two parallel main truss guide beams (1), a front temporary support leg (2) arranged at one end of the main truss guide beam (1), and a rear support leg (3) arranged at the other end of the main truss guide beam (1); a front support leg (4) and a middle support leg (5) are also arranged at the lower end of the main truss guide beam (1); a track beam (6) is also arranged at the bottom of the front support leg (4) and the middle support leg (5); the front support leg (4) and the middle support leg (5) can slide along the track beam (6); a space between the front support leg (4) and the main truss guide beam (1), and between the middle support leg (5) and the main truss guide beam (1) A turntable (7) is provided in each of the main truss guide beams (1), and the turntable (7) is used to adjust the rotation angle of the entire bridge-building machine. A transverse track (8) is provided in the main truss guide beam (1), and at least two truss vehicles (9) are provided on the transverse track (8). The truss vehicles (9) are used to balance the load relationship of the bridge-building machine. An electrical control system (10) is also provided in the main truss guide beam (1), and the electrical control system (10) is configured to control the movement of the front support leg (4) and the middle support leg (5) and the movement of the truss vehicle (9) in the transverse track (8).
2. A walking type transverse bridge erecting machine according to claim 1, characterized in that: The front supporting legs (4) and the middle supporting legs (5) can slide on the main truss guide beam (1) along its length direction, and are used to adjust the fulcrum and the rotation center point during the width-changing process of the bridge erecting machine.
3. The walking type transverse bridge erecting machine according to claim 1, characterized in that: A plurality of fixing screws (11) are provided on the front supporting legs (4), the middle supporting legs (5) and the turntable (7), and the fixing screws (11) are used to limit the sliding of the front supporting legs (4) and the middle supporting legs (5) on the track beam (6) and the rotation of the turntable (7).
4. The walking type transverse bridge erecting machine according to claim 1, characterized in that: A slide rail (12) is provided in the middle of the track beam (6), pulleys (13) are provided at the bottom of the front support leg (4) and the middle support leg (5), the position of the pulley (13) matches the position of the slide rail (12), and baffles (14) are also provided at both ends of the track beam (6).
5. The walking type transverse bridge erecting machine according to claim 1, characterized in that: The front temporary supporting legs (2) and the rear supporting legs (3) are also provided with hydraulic devices (15). The front temporary supporting legs (2) and the rear supporting legs (3) are extended and retracted in the main truss guide beam (1) through the hydraulic devices (15) and can support the entire bridge erection machine.
6. The walking type transverse bridge erecting machine according to claim 1, characterized in that: A plurality of limiting rods (16) are provided at the upper end of the main truss guide beam (1), and a rotating structure (17) is provided at the connection between the limiting rods (16) and the main truss guide beam (1). The limiting rods (16) and the rotating structure (17) cooperate with each other so that the distance between the two main truss guide beams (1) is equal.