Aerial steering device behind bridge pier

Abstract

The utility model discloses a bridge pier rear air steering device, which comprises a rotating disc, a driving disc and a steering capstan, the rotating disc is sleeved on the periphery of a bridge pier, the upper part of the rotating disc is fixedly connected with a steel cover beam, the lower part of the rotating disc is rotatably arranged on the driving disc, the steering capstan is connected with the steel cover beam through a traction rope, and the steel cover beam is fixedly connected with the driving disc. When the steering winch works, the traction rope drives the steel cover beam and the rotating disc to rotate around the axis of the bridge pier. The steel cover beam is fixedly connected with the rotating disc, the rotating disc and the steel cover beam are driven by the steering winch and the traction rope to rotate around the axis of the bridge pier on the transmission disc, and angle adjustment of the steel cover beam is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge structures, in particular to an aerial steering device behind a bridge pier. Background Art

[0002] Single-column pier bridges are often used in many urban interchanges and highway ramps due to their small footprint, wide sightlines, and high economic efficiency. However, when single-column pier bridges face overload and eccentric load conditions, their lateral anti-overturning capacity is increasingly insufficient. By adding a steel cap beam to the top of the single-column pier, the single-column pier can be transformed from a single support to multiple supports, which is one of the commonly used transformation solutions, thereby enhancing the overall stability and lateral load-bearing capacity of the bridge.

[0003] A considerable proportion of the single-column piers are located in the median of the lower road, and there is a high probability that there are obstructions around the single-column piers of urban interchanges. During the construction of adding a steel cap beam to the top of the single-column pier, the deadweight of the steel cap beam is generally ≥5T, and the maximum weight exceeds 12T. The general design guides the installation process to adjust the horizontal position of the steel cap beam after riveting the ground column, and then lift the entire column to the preset pier top height. However, in many on-site conditions, the top of the single-column pier is open, and the ground does not have a horizontal position for the steel cap beam, which causes a spatial conflict with the lower road and obstructions (buildings, trees, original landforms, etc.). If the road (referring to the lower road) is occupied or the obstructions are removed during the construction process, it will be detrimental to the social and economic benefits. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an aerial steering device behind a bridge pier to solve the problem of inconvenient angle adjustment during the installation of the steel cap beam.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The invention discloses an aerial steering device behind a bridge pier, comprising a rotating disk, a transmission disk and a steering winch. The rotating disk is sleeved on the outer periphery of the bridge pier, the upper part of the rotating disk is fixedly connected to a steel cap beam, the lower part of the rotating disk is rotatably arranged on the transmission disk, and the steering winch is connected to the steel cap beam through a traction rope. When the steering winch is working, the traction rope drives the steel cap beam and the rotating disk to rotate around the axis of the bridge pier.

[0007] By fixing the steel cap beam to the rotating disk, and then using the steering winch and tightening the traction rope, the rotating disk and the steel cap beam are driven to rotate around the axis of the bridge pier on the transmission disk, thereby achieving the angle adjustment of the steel cap beam.

[0008] As a further improvement of the utility model: a groove is provided on the upper part of the transmission disk, a concentric roller is installed in the groove, and the outer wall of the concentric roller is in contact with the bottom of the rotating disk.

[0009] As a further improvement of the utility model: a liquid shaft limiter is also arranged in the groove, and the liquid shaft limiter prevents the rotation of the concentric roller.

[0010] As a further improvement of the utility model: it also includes a load-bearing cylinder, which is in contact with the bottom of the transmission plate, and an anchor bolt structure is provided between the load-bearing cylinder and the bridge pier.

[0011] As a further improvement of the utility model: an engaging cavity is provided on the rotating disk, and engaging teeth are provided at the bottom of the steel cap beam, and the engaging teeth extend into the engaging cavity and are locked.

[0012] As a further improvement of the utility model: the rotating disk is provided with a locking sub-hole, the transmission disk is provided with a locking mother hole, a locking rod is provided in the locking sub-hole, and when the positions of the locking sub-hole and the locking mother hole are consistent, the locking rod falls from the locking sub-hole into the locking mother hole.

[0013] As a further improvement of the utility model: a first angle scale is provided on the outer wall of the rotating disk, and a second angle scale is provided on the outer wall of the transmission disk.

[0014] As a further improvement of the utility model: the rotating disk is composed of at least two sections of steel components.

[0015] As a further improvement of the utility model: the transmission disc is composed of at least two sections of steel components, and the transmission disc is sleeved and installed on the outer periphery of the bridge pier.

[0016] As a further improvement of the utility model: the load-bearing cylinder is composed of at least two sections of steel components spliced ​​together.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model fixes a rotating disk at the bottom of the steel cap beam, and mounts the rotating disk on the outer periphery of the bridge pier so that the rotating disk rotates on the transmission disk, and a steering winch is used to connect the steel cap beam through a traction rope. When the rotating winch is working, the traction rope is tightened to drive the steel cap beam and the rotating disk to rotate around the axis of the bridge pier on the transmission disk, so as to achieve angle adjustment of the steel cap beam, solve the limitation of the ground placement position of the steel cap beam during installation, and effectively utilize the actual condition that the ample space on the top of the bridge pier can realize free steering, without occupying the road to affect citizens' travel, and without dismantling and restoring the isolation railings to avoid cost increase and shorten the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an aerial steering device behind a bridge pier according to this embodiment.

[0020] Figure 2 Schematic diagram of the structure of the rotating disk of this embodiment.

[0021] Figure 3 Schematic diagram of the structure of the transmission plate of this embodiment.

[0022] Figure 4 It is a schematic structural diagram of the load-bearing cylinder of this embodiment.

[0023] Figure 5 Schematic diagram of the installation of this embodiment.

[0024] Figure 6 This is a structural diagram of the completed steel cap beam installation.

[0025] Reference numerals:

[0026] 1. Rotating plate, 101. Engaging cavity, 102. Locking hole, 103. First angle scale, 2. Transmission plate, 201. Groove, 202. Locking hole, 203. Second angle scale, 3. Steering winch, 4. Towing rope, 5. Load-bearing cylinder, 6. Anchor structure, 61. Rear expanded bottom anchor, 62. Anchor hanging ear, 7. Concentric roller, 8. Liquid shaft limiter, 9. Steel cap beam, 91. Steel sleeve, 10. Bridge pier. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The single-column pier / bridge pier is located in the two-way local road isolation zone at the bottom of the urban expressway. The existing construction method of pre-installed steel cap beams usually adjusts the water surface angle on the ground. The steel cap beam will occupy the local road isolation railing and one lane in each direction of the local road at the same time, for a total of two lanes. For road occupation construction, the construction unit needs to report to the management authority for approval of the road occupation application, and at the same time, the local road needs to be fenced off and traffic diverted. In this way, there are problems such as many project measures, poor social benefits, and high economic costs.

[0029] In order to solve the technical problems in the prior art, the utility model is further described in conjunction with the accompanying drawings and embodiments:

[0030] like Figures 1 to 6As shown, the embodiment disclosed herein is a rear aerial steering device for a bridge pier 10, comprising a rotating disk 1, a transmission disk 2 and a steering winch 3. The rotating disk 1 is sleeved on the outer periphery of the bridge pier 10, the upper portion of the rotating disk 1 is fixedly connected to the steel cap beam 9, the lower portion of the rotating disk 1 is rotatably arranged on the transmission disk 2, and the steering winch 3 is connected to the steel cap beam 9 through a traction rope 4. When the steering winch 3 is working, the traction rope 4 drives the steel cap beam 9 and the rotating disk 1 to rotate around the axis of the bridge pier 10. The steering winch 3 is fixedly mounted on the upper structure on the top of the bridge pier 10, and the upper structure is the original concrete structure.

[0031] The air steering device behind the bridge pier 10 of this embodiment is used. By fixing the steel cap beam 9 with the rotating disk 1, the steering winch 3 is used to tighten the traction rope 4, which drives the rotating disk 1 and the steel cap beam 9 to rotate around the axis of the bridge pier 10 on the transmission disk 2, thereby adjusting the angle of the steel cap beam 9. It is only necessary to assemble the steel cap beam 9 along the direction of the local road isolation belt, and then lift it to the pre-installed height of the single-column pier and then steer it in the air to reach the predetermined position. It does not occupy the road to affect citizens' travel, does not remove and restore the isolation railings to avoid cost increases, and shortens the construction period.

[0032] As a preferred embodiment, it also includes a load-bearing cylinder 5 , which is in contact with the bottom of the transmission plate 2 , and an anchor structure 6 is provided between the load-bearing cylinder 5 and the bridge pier 10 .

[0033] The bearing cylinder 5 is a supporting member of the whole structure, which bears the deadweight of the whole system, the deadweight of the upper rotating disk 1, the transmission disk 2 and the steel cap beam 9. After the operation is completed, it can be dismantled and recycled. The bearing cylinder 5 is fixed to the concrete bridge pier 10 through the anchor bolt structure 6. The anchor bolt structure 6 is used to increase the friction between the bearing cylinder 5 and the bridge pier 10, and share the deadweight of the upper structure.

[0034] The working process of the aerial steering device with steel cap beam 9 after the single-column pier of the bridge specifically includes:

[0035] 1. Measure the on-site environment, determine the optimal angle for assembling the steel cap beam 9 from the ground, avoid obstructions, and assemble the steel cap beam 9 on the ground.

[0036] 2. According to the construction plan, the steel cap beam 9 is lifted to a predetermined height, which can be a slightly higher position without lifting it to the top of the bridge pier 10. This makes it easier for workers to install the aerial steering device after the bridge pier 10 of this embodiment, ensuring operational safety and reliability.

[0037] 3. Drill holes in the concrete and install and fix the load-bearing cylinder 5 on the bridge pier 10.

[0038] 4. Measure the angle deviation of the steel cap beam 9 / steel sleeve 91, place the transmission disc 2 on the bridge pier 10 and adjust the angle. The bottom of the transmission disc 2 is fixedly connected to the top of the load-bearing cylinder 5.

[0039] When installing the transmission disc 2, the operator measures the offset angle of the steel cap beam 9 and presets the position of the transmission disc 2. The offset angle of the steel cap beam 9 = the rotation angle of the rotating disc 1 = the angle difference between the locking sub-hole 102 and the locking mother hole 202.

[0040] 5. A rotating disk 1 is placed on the bridge pier 10, and the rotating disk 1 and the transmission disk 2 rotate in coordination.

[0041] 6. Lower the steel cap beam 9 to a predetermined height and place it onto the rotating disk 1.

[0042] 7. The steel cap beam 9 and the rotating disk 1 are driven to rotate around the axis of the bridge pier 10 on the transmission disk 2 to a predetermined angle through the steering winch 3 and the traction rope 4.

[0043] This embodiment can realize the freedom of choice of the ground placement angle of the steel cap beam 9, and after lifting to the preset pier top height, the column can be rotated to the preset horizontal angle. Of course, it can also be used to adjust the construction errors such as the deviation of the water surface angle after the steel cap beam 9 is lifted to the preset pier top height, avoiding repeated lifting and adjustment after lowering to the ground again. The limitation of the single ground placement position requirement during the installation of the steel cap beam 9 is solved, and the actual condition that the single-column pier top space is ample and can realize free turning is effectively utilized.

[0044] As a preferred embodiment, the anchor structure 6 is provided with a rear-enlarged bottom anchor 61, which passes through the side wall of the bearing cylinder 5 and is connected to the bridge pier 10. A plurality of rear-enlarged bottom anchors 61 are arranged along the circumferential direction of the bearing cylinder 5, and the axis of the rear-enlarged bottom anchor 61 is perpendicular to the central circumference of the bridge pier 10.

[0045] A hole is opened on the bridge pier 10, and the rear bottom anchor bolt 61 is inserted into the bridge pier 10 through the side wall of the bearing cylinder 5. The bearing cylinder 5 is tightened and fixed to the concrete pier column by tightening bolts. The rear bottom anchor bolt 61 has excellent shear and pull-out resistance. The design considers that the rear bottom anchor bolt 61 bears the deadweight of all upper components.

[0046] As a preferred embodiment, the load-bearing cylinder 5 is composed of at least two sections of steel components.

[0047] Preferably, the load-bearing cylinder 5 is composed of two semi-circular steel cylinders.

[0048] More preferably, the anchor structure 6 is further provided with an anchor lug 62, which is fixedly connected to the bearing cylinder 5, and the anchor lug 62 is provided at the joint of the bearing cylinder 5, and one end of which is fixedly connected to the bridge pier 10. The two sections of steel components are closed into a steel cylinder by the anchor lug 62. When the anchor lug 62 is tightened, the friction between the bearing cylinder 5 and the bridge pier 10 is increased, thereby sharing the deadweight of the upper structure.

[0049] As a preferred embodiment, a rolling structure is provided between the rotating disk 1 and the transmission disk 2, so that the rotating disk 1 can smoothly rotate around the bridge pier 10 on the transmission disk 2 under the tightening action of the traction rope 4.

[0050] The main function of the transmission disc 2 is to provide a slideway for the rotation of the rotating disc 1. More preferably, a groove 201 is provided on the upper part of the transmission disc 2, and a concentric roller 7 is installed in the groove 201. The outer wall of the concentric roller 7 contacts the bottom of the rotating disc 1. The structure of the concentric roller 7 is prior art and will not be described in detail here.

[0051] The concentric roller 7 bears the deadweight of the steel cap beam 9 and the steel sleeve 91 connected to the steel cap beam 9 transmitted from the rotating disk 1. The steel sleeve 91 is a part of the steel cap beam 9. The traction rope 4 is fixedly connected to the steel sleeve 91, and the steel sleeve 91 is fixedly connected to the rotating disk 1. When the steering winch 3 applies a rotating torque around the axis of the bridge pier 10 to the steel sleeve 91, the concentric roller 7 rotates, driving the steel sleeve 91 and the rotating disk 1 to rotate around the column, thereby realizing the steering of the steel cap beam 9 and completing the predetermined angle adjustment.

[0052] Preferably, eight grooves 201 are provided on the upper portion of the transmission disc 2 , and eight concentric rollers 7 are installed correspondingly, and the top surfaces of the concentric rollers 7 are higher than the top surface of the transmission disc 2 .

[0053] Preferably, the lower end portion of the rotating disk 1 is embedded in the upper portion of the transmission disk 2 .

[0054] As a preferred embodiment, a liquid shaft stopper 8 is further provided in the groove 201 , and the liquid shaft stopper 8 prevents the concentric roller 7 from rotating.

[0055] The hydraulic shaft limiter 8 is a device for protecting the safety of mechanical equipment. It uses liquid as a medium to set a hydraulic limiter in the mechanical system. When the equipment runs to a predetermined position, the hydraulic limiter will be triggered to stop the continued movement of the equipment to avoid exceeding the specified limit range. The structure of the hydraulic shaft limiter 8 is prior art.

[0056] As a preferred embodiment, a bite cavity 101 is provided on the rotating disk 1, and bite teeth are provided at the bottom of the steel cap beam 9, and the bite teeth extend into the bite cavity 101 to be locked.

[0057] The rotating disk 1 is fixed at the bottom of the steel cap beam 9 and is connected to the preset engaging teeth at the bottom of the steel cap beam 9 through the engaging cavity 101, so that the steel cap beam 9 is fixed on the rotating disk 1 to prevent slippage between the rotating disk 1 and the steel cap beam 9.

[0058] As a preferred embodiment, the rotating disk 1 is composed of at least two sections of steel components.

[0059] More preferably, the rotating disk 1 is composed of two semi-circular ring-shaped steel components.

[0060] As a preferred embodiment, a locking sub-hole 102 is provided on the rotating disk 1, a locking mother hole 202 is provided on the transmission disk 2, and a locking rod is provided in the locking sub-hole 102. When the positions of the locking sub-hole 102 and the locking mother hole 202 are consistent, the locking rod falls from the locking sub-hole 102 into the locking mother hole 202.

[0061] By setting the locking sub-hole 102 and the locking mother hole 202, when the positions of the two are consistent, it means that the rotation is completed, and the rotating disk 1 and the steel cap beam 9 rotate to the predetermined angle. At this time, the locking rod falls from the locking sub-hole 102 into the locking mother hole 202, terminating the rotation action, and completing the angle correction of the steel cap beam 9.

[0062] As a preferred embodiment, a first angle scale 103 is provided on the outer wall of the rotating disk 1, and a second angle scale 203 is provided on the outer wall of the transmission disk 2. By comparing the first angle scale 103 with the second angle scale 203, the rotation angle of the rotating disk 1 can be observed.

[0063] As a preferred embodiment, the transmission disc 2 is composed of at least two sections of steel components, and the transmission disc 2 is sleeved and installed on the outer periphery of the bridge pier 10. The transmission disc 2 is stationary relative to the rotating disc 1, and the transmission disc 2 is fixedly connected to the bearing cylinder 5.

[0064] More preferably, the splicing structure of the transmission disc 2 is similar to that of the rotating disc 1, and the transmission disc 2 can also be composed of two semi-circular steel components.

[0065] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0066] In summary, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.

Claims

1. A bridge pier rear aerial steering device, characterized in that: It includes a rotating disk, a transmission disk and a steering winch. The rotating disk is sleeved on the outer periphery of the bridge pier. The upper part of the rotating disk is fixedly connected to the steel cap beam. The lower part of the rotating disk is rotatably arranged on the transmission disk. The steering winch is connected to the steel cap beam through a traction rope. When the steering winch is working, the traction rope drives the steel cap beam and the rotating disk to rotate around the axis of the bridge pier.

2. The aerial steering device behind a bridge pier according to claim 1, characterized in that: A groove is provided on the upper part of the transmission disk, a concentric roller is installed in the groove, and the outer wall of the concentric roller is in contact with the bottom of the rotating disk.

3. The aerial steering device behind a bridge pier according to claim 2, characterized in that: A liquid shaft limiter is also arranged in the groove, and the liquid shaft limiter prevents the rotation of the concentric roller.

4. The aerial steering device behind a bridge pier according to claim 1, characterized in that: It also includes a bearing cylinder, which is in contact with the bottom of the transmission plate, and an anchor structure is provided between the bearing cylinder and the bridge pier.

5. The aerial steering device behind a bridge pier according to claim 1, characterized in that: The rotating disk is provided with an engagement cavity, and the bottom of the steel cap beam is provided with engagement teeth, and the engagement teeth extend into the engagement cavity and are locked.

6. A bridge pier rear aerial steering device according to any one of claims 1 to 5, characterized in that: The rotating disk is provided with a locking sub-hole, the transmission disk is provided with a locking mother hole, a locking rod is provided in the locking sub-hole, and when the positions of the locking sub-hole and the locking mother hole are consistent, the locking rod falls from the locking sub-hole into the locking mother hole.

7. The aerial steering device behind a bridge pier according to claim 6, characterized in that: A first angle scale is arranged on the outer wall of the rotating disk, and a second angle scale is arranged on the outer wall of the transmission disk.

8. The aerial steering device behind a bridge pier according to claim 1, characterized in that: The rotating disk is composed of at least two sections of steel components.

9. The aerial steering device behind a bridge pier according to claim 1, characterized in that: The transmission disc is composed of at least two sections of steel components, and the transmission disc is sleeved and installed on the outer periphery of the bridge pier.

10. The aerial steering device behind a bridge pier according to claim 4, characterized in that: The load-bearing cylinder is composed of at least two sections of steel components.

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