A cantilever device for assisting erection of a bridge span

Abstract

The utility model discloses a cantilever device of auxiliary impact bridge span erection, including the frame body, the frame body is frame type structure, is provided with the bridge wheel group through the bridge wheel group mounting seat on the main girder of frame body, and the gear in the bridge wheel group is located the outside of main girder, and is engaged with the guide rail of bridge span with the notched groove, drives bridge span to move, and the terminal of frame body is provided with the connecting pin shaft, and the connecting pin shaft is connected external oil cylinder and cantilever device, and the bridge span position of the frame body bearing is adjusted through the bridge wheel group of the application, and it is guaranteed that bridge span can be after unfolding and straddle on the obstacle.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary erection equipment for impact bridge spans, and in particular to a cantilever device for assisting in the erection of impact bridge spans. Background Technology

[0002] The bridge span of an impact bridge is a main bridge structure that folds and is stored on top of the vehicle body. When in use, it unfolds and spans across the obstacle to allow vehicles to pass. It is the core functional component of the impact bridge and directly determines the vehicle's crossing capacity, load-bearing capacity, and erection speed. The bridge span of the impact bridge needs to be erected onto the obstacle by an external vehicle. During the erection process, the bridge span needs to be lifted and its position adjusted forward and backward. In response to this need, this application proposes a solution. Summary of the Invention

[0003] Purpose of the utility model: The purpose of this utility model is to provide a cantilever device for assisting in the erection of impact bridge spans. It can support the bridge spans and adjust their positions during the erection process, ensuring that the bridge spans can be stably deployed and span across obstacles.

[0004] Technical solution: The cantilever device for assisting in the erection of an impact bridge span according to this utility model includes a frame body, which is a frame structure. A bridge wheel set is installed on the main beam of the frame body through a bridge wheel set mounting seat. The gear in the bridge wheel set is located on the outside of the main beam and meshes with the guide rail in the bridge span to drive the bridge span to move. A connecting pin is provided at the end of the frame body, and the connecting pin is connected to an external hydraulic cylinder.

[0005] The bridge span is mounted on the frame via guide rails. The rotation of gears meshing with the guide rails causes the guide rails to move forward or backward, thus enabling the bridge span to move forward or backward as a whole.

[0006] Preferably, the frame also includes multiple crossbeams, which are arranged between the main beams of the frame. The bridge wheel assembly mounting seats are symmetrically arranged on the main beams on both sides of the frame, passing through the main beams, and the bridge wheel assembly is installed in the bridge wheel assembly mounting seats.

[0007] The addition of crossbeams further enhances the overall load-bearing capacity of the frame.

[0008] Preferably, the bridge wheel assembly further includes a front bearing, a sleeve, a shaft, a rear bearing, a hydraulic motor, and a flange plate. The sleeve passes through the main beam, and its two ends extend out of the main beam and are respectively connected to the front bearing and the rear bearing. The shaft passes through the front bearing, the sleeve, and the rear bearing in sequence, and its two ends are respectively connected to a gear and a hydraulic motor. The hydraulic motor is fixedly connected to the bridge wheel assembly mounting base through the flange plate.

[0009] The hydraulic motor drives the shaft to rotate, thereby controlling the rotation of the gears connected to the shaft and enabling the overall movement of the bridge span.

[0010] Preferably, the hydraulic motor is a hydraulic motor with a locking function.

[0011] Hydraulic motors with locking functions can be locked at any time during operation to deal with various emergencies.

[0012] Preferably, a roller assembly is included, which is positioned in front of and behind the bridge wheel assembly along the axial direction of the main beam. The roller assembly includes a long shaft, a roller seat, an auxiliary roller, and a limiting roller. One end of the long shaft passes through the main beam and is fixed to the main beam by a nut. The other end is equipped with a roller seat. An auxiliary wheel axle and a limiting wheel axle are provided on the roller seat. The auxiliary wheel axle is fixedly connected to the roller seat by a nut, and an auxiliary roller is rotatably connected to the auxiliary wheel axle. The limiting wheel axle is rotatably mounted on the roller seat, and the limiting roller is fixedly mounted on the limiting wheel axle and rotates with the limiting wheel axle.

[0013] The roller assembly serves two purposes: firstly, it supports the bridge span; secondly, the auxiliary rolling rollers assist in the movement of the bridge span while providing support.

[0014] Preferably, the width of the limiting wheel is smaller than the width of the groove on the guide rail in the bridge span. When the limiting wheel rotates with the limiting wheel shaft and engages with the groove in the guide rail, it completes the limiting of the guide rail.

[0015] By engaging the limit roller with the groove inside the guide rail, the guide rail is limited, thus enabling timely cessation of bridge span movement in various emergencies and further enhancing the control effect when adjusting the bridge span position.

[0016] Preferably, the auxiliary wheel roller and the limiting wheel roller are located on the same axis on the same side of the main beam as the gear.

[0017] Preferably, the system includes a bridge support wheel assembly, which is mounted on the main beam and located between the connection point of the connecting pin and the main beam and the bridge support wheel assembly. The bridge support wheel assembly includes a bridge support wheel lug seat, a roller, and a bridge support wheel axle. The bridge support wheel lug seat is fixedly mounted on the main beam. After the bridge support wheel axle extends into the bridge support wheel lug seat, it is fixedly connected to the bridge support wheel lug seat by a nut. The roller is rotatably mounted at the end of the bridge support wheel axle.

[0018] The installation of bridge support rollers further supports the bridge span, while the rollers assist in the movement of the bridge span while supporting it.

[0019] Preferably, the roller and the gear are located on the same side of the main beam.

[0020] Beneficial effects: Compared with the prior art, this utility model has the following advantages:

[0021] This application achieves the adjustment of the bridge span position supported by the frame by using a bridge-pulling wheel set. By setting up roller assemblies and bridge-supporting wheel sets, it ensures that the bridge span can be stably unfolded and span across the obstacle. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a side view of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the bridge wheel assembly in this utility model.

[0025] Figure 4 This is a three-dimensional structural diagram of the roller assembly in this utility model.

[0026] Figure 5 This is a three-dimensional structural diagram of the bridge wheel assembly of this utility model.

[0027] Figure 6 A schematic diagram of the overall structure when a bridge span is installed on this utility model.

[0028] Figure 7 A top view of the bridge span after removing one layer and then placing it on this utility model. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0030] See appendix Figures 1-7 The figure shows the auxiliary impact bridge span erection device of this utility model, which includes a frame body 1. The frame body 1 is a frame structure. A bridge wheel set 3 is set on the main beam 11 of the frame body 1 through a bridge wheel set mounting seat 2. The gear 31 in the bridge wheel set 3 is located on the outside of the main beam 11 and meshes with the guide rail 41 in the bridge span 4, driving the bridge span 4 to move. A connecting pin 12 is set at the end of the frame body 1. The connecting pin 12 is connected to an external hydraulic cylinder. The bridge span 4 is set on the frame body 1 through the guide rail 41. By rotating the gear 31 meshing with the guide rail 41, the guide rail 41 is driven to move forward or backward, realizing the overall forward or backward movement of the bridge span 4.

[0031] In this embodiment, the frame 1 also includes multiple crossbeams 13, which are arranged between the main beams 11 of the frame 1. The bridge wheel assembly mounting base 2 is symmetrically arranged on the main beams 11 on both sides of the frame 1, passing through the main beams 11. The bridge wheel assembly 3 is installed in the bridge wheel assembly mounting base 2. The arrangement of the crossbeams 13 further improves the overall load-bearing capacity of the frame 1.

[0032] In this embodiment, the bridge wheel assembly 3 also includes a front bearing 32, a sleeve 33 (not shown in the figure), a shaft 34, a rear bearing 35, a hydraulic motor 36, and a flange plate 37. The sleeve 33 passes through the main beam 11, and the two ends of the sleeve 33 extend out of the main beam 11 and are respectively connected to the front bearing 32 and the rear bearing 35. The shaft 34 passes through the front bearing 32, the sleeve 33, and the rear bearing 35 in sequence, and the two ends are respectively connected to the gear 31 and the hydraulic motor 36. The hydraulic motor 36 is fixedly connected to the bridge wheel assembly mounting base 2 through the flange plate 37. The shaft 34 is driven to rotate by the hydraulic motor 36, thereby controlling the rotation of the gear 31 connected to the shaft 34 and realizing the overall movement of the bridge span 4.

[0033] In this embodiment, the hydraulic motor 36 is a hydraulic motor 36 with a locking function. The hydraulic motor 36 with the locking function can lock at any time during operation to deal with various emergencies.

[0034] In this embodiment, a roller assembly 5 is also included. The roller assembly 5 is positioned in front of and behind the bridge wheel group 3 along the axial direction of the main beam 11. The roller assembly 5 includes a long shaft 51, a roller seat 52, an auxiliary roller 53, and a limiting roller 54. One end of the long shaft 51 passes through the main beam 11 and is fixed to the main beam 11 by a nut. The other end is equipped with a roller seat 52. An auxiliary wheel axle 55 and a limiting wheel axle 56 are provided on the roller seat 52. The auxiliary wheel axle 55 is fixedly connected to the roller seat 52 by a nut. The auxiliary roller 53 is rotatably connected to the auxiliary wheel axle 55. The limiting wheel axle 56 is rotatably mounted on the roller seat 52. The limiting roller 54 is fixedly mounted on the limiting wheel axle 56 and rotates with the limiting wheel axle 56. The roller assembly 5 serves to support the bridge span 4 on the one hand, and assists the movement of the bridge span 4 on the other hand through the rolling auxiliary roller 53.

[0035] In this embodiment, the width of the limiting wheel roller 54 is smaller than the width of the groove on the guide rail 41 in the bridge span 4. When the limiting wheel roller 54 rotates with the limiting wheel shaft 55 and engages with the groove in the guide rail 41, it completes the limiting of the guide rail 41, thereby being able to cope with various emergencies. When various emergencies occur, it can stop the movement of the bridge span 4 in time, further enhancing the control effect when adjusting the position of the bridge span 4.

[0036] In this embodiment, the auxiliary wheel roller 53 and the limiting wheel roller 54 are located on the same axis on the same side of the main beam 11 as the gear 31.

[0037] In this embodiment, a bridge support wheel assembly 6 is also included. The bridge support wheel assembly 6 is disposed on the main beam 11, located between the connection point of the connecting pin 12 and the main beam 11 and the bridge support wheel assembly 3. The bridge support wheel assembly 6 includes a bridge support wheel lug seat 61, a roller 62, and a bridge support wheel axle 63. The bridge support wheel lug seat 61 is fixedly disposed on the main beam 11. After the bridge support wheel axle 63 extends into the bridge support wheel lug seat 61, it is fixedly connected to the bridge support wheel lug seat 61 by a nut. The roller 62 is rotatably disposed at the end of the bridge support wheel axle 63. The arrangement of the bridge support wheel assembly 6 further supports the bridge span 4. At the same time, the arrangement of the roller 62 assists the movement of the bridge span 4 while supporting it.

[0038] In this embodiment, the roller 62 and the gear 31 are located on the same side of the main beam 11.

[0039] In operation, the bridge span 4 is set on the frame 1. The guide rail 41 in the bridge span 4 meshes with the gear 31 in the bridge wheel set 3 through the slot on the guide rail 41. The external hydraulic cylinder drives the frame 1 and the bridge span 4 together to lift them through the connecting pin 12, so that the frame 1 and the bridge span 4 are at a certain angle to the ground. At this time, the connecting pin 12 also serves as the force-bearing component of the frame 1 and the bridge span 4. After reaching a certain height, the hydraulic motor 36 is started, which drives the gear 31 to rotate. The gear 31 drives the guide rail 41 to move forward, so that the bridge span 4 moves further toward the obstacle until the bridge span 4 is stably unfolded and spans across the obstacle, thus completing the auxiliary role of laying the bridge span 4.

Claims

1. A cantilever device for assisting in the erection of an impact bridge span, comprising a frame (1), characterized in that: The frame (1) is a frame structure. The main beam (11) of the frame (1) is equipped with a bridge wheel assembly (3) through a bridge wheel assembly mounting seat (2). The gear (31) in the bridge wheel assembly (3) is located on the outside of the main beam (11) and meshes with the grooved guide rail (41) in the bridge span (4) to drive the bridge span (4) to move. The end of the frame (1) is equipped with a connecting pin (12), which is connected to an external oil cylinder.

2. The cantilever device for assisting in the erection of an impact bridge span according to claim 1, characterized in that: The frame (1) also includes multiple crossbeams (13), which are arranged between the main beams (11) of the frame (1). The bridge wheel assembly mounting base (2) is symmetrically arranged on the main beams (11) on both sides of the frame (1) and passes through the main beams (11). The bridge wheel assembly (3) is installed in the bridge wheel assembly mounting base (2).

3. The cantilever device for assisting in the erection of an impact bridge span according to claim 1, characterized in that: The bridge wheel assembly (3) also includes a front bearing (32), a sleeve (33), a shaft (34), a rear bearing (35), a hydraulic motor (36), and a flange plate (37). The sleeve (33) passes through the main beam (11). The two ends of the sleeve (33) extend out of the main beam (11) and are respectively connected to the front bearing (32) and the rear bearing (35). The shaft (34) passes through the front bearing (32), the sleeve (33), and the rear bearing (35) in sequence, and is respectively connected to the gear (31) and the hydraulic motor (36) at both ends. The hydraulic motor (36) is fixedly connected to the bridge wheel assembly mounting base (2) through the flange plate (37).

4. The cantilever device for assisting in the erection of an impact bridge span according to claim 3, characterized in that: The hydraulic motor (36) is a hydraulic motor (36) with a locking function.

5. The cantilever device for assisting in the erection of an impact bridge span according to claim 1, characterized in that: The assembly includes a roller assembly (5), which is positioned in front of and behind the bridge wheel group (3) along the axial direction of the main beam (11). The roller assembly (5) includes a long shaft (51), a roller seat (52), an auxiliary roller (53), and a limiting roller (54). One end of the long shaft (51) passes through the main beam (11) and is fixed to the main beam (11) by a nut. The other end is equipped with a roller seat (52). An auxiliary wheel shaft (55) and a limiting wheel shaft (56) are provided on the roller seat (52). The auxiliary wheel shaft (55) is fixedly connected to the roller seat (52) by a nut. An auxiliary roller (53) is rotatably connected to the auxiliary wheel shaft (55). The limiting wheel shaft (56) is rotatably mounted on the roller seat (52). The limiting roller (54) is fixedly mounted on the limiting wheel shaft (56) and rotates with the limiting wheel shaft (56).

6. The cantilever device for assisting in the erection of an impact bridge span according to claim 5, characterized in that: The width of the limiting wheel (54) is smaller than the width of the groove on the guide rail (41) in the bridge span (4). When the limiting wheel (54) rotates with the limiting wheel shaft (56) and engages with the groove in the guide rail (41), it completes the limiting of the guide rail (41).

7. The cantilever device for assisting in the erection of an impact bridge span according to claim 5, characterized in that: The auxiliary wheel roller (53) and the limiting wheel roller (54) are located on the same axis on the same side of the main beam (11) as the gear (31).

8. The cantilever device for assisting in the erection of an impact bridge span according to claim 1, characterized in that: The system includes a bridge support wheel assembly (6), which is mounted on the main beam (11) and located between the connection point of the connecting pin (12) and the main beam (11) and the bridge support wheel assembly (3). The bridge support wheel assembly (6) includes a bridge support wheel lug seat (61), a roller (62) and a bridge support wheel shaft (63). The bridge support wheel lug seat (61) is fixedly mounted on the main beam (11). After the bridge support wheel shaft (63) extends into the bridge support wheel lug seat (61), it is fixedly connected to the bridge support wheel lug seat (61) by a nut. The roller (62) is rotatably mounted at the end of the bridge support wheel shaft (63).

9. A cantilever device for assisting in the erection of an impact bridge span according to claim 8, characterized in that: The roller (62) and the gear (31) are located on the same side of the main beam (11).

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