Triangular hanging basket walking structure

Abstract

The utility model belongs to the technical field of bridging engineering tools, and particularly discloses a triangular hanging basket walking structure, a rear sliding beam is installed on a main longitudinal beam of a triangular hanging basket, a rear upper cross beam of the triangular hanging basket is located above the rear sliding beam, and the rear sliding beam is in sliding fit with the rear upper cross beam. And the rear upper cross beam and the finished product box girder are fixed and are kept immovable relative to each other. When the improved walking device is used for moving the hanging basket forwards, the traction jack is still arranged at the position of the middle fulcrum support, when the structure moves forwards, the rear upper cross beam is anchored with the beam section concrete and is kept relatively immovable, and the rear sliding beam moves forwards along with the hanging basket structure through rolling of the idler wheels on the top face of the rear sliding beam. And the rear upper cross beam still plays an anchoring role, so that the forward moving safety of the hanging basket is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering tooling, in particular to a triangular hanging basket walking structure. Background Art

[0002] The hanging basket is one of the main equipment for cantilever construction. It consists of four parts: the main longitudinal beam load-bearing system, the bottom basket and suspension system, the rear anchor and walking system, and the formwork system. It is a movable load-bearing bracket that can travel along the track by hanging on the cast box beam segment. The formwork assembly, steel bar binding, corrugated pipe installation, concrete pouring, prestressing tensioning, and pipe grouting of this segment can be carried out on the hanging basket working surface. After a construction cycle is completed, the hanging basket can move forward to the next segment, and this process is repeated until the joint is closed.

[0003] The installation and disassembly, preloading, pouring and walking of hanging basket are several important node processes of hanging basket cast-in-place construction. Figure 2 and Figure 3 As shown, at present, the conventional walking method of the triangular hanging basket is to buckle the walking wheels on the walking track of the rear anchor beam, and use a jack to pull the middle fulcrum support at the front end of the sliding beam to slide on the sliding beam, thereby driving the entire hanging basket structure to move forward. The overall overturning of the hanging basket during walking is the most common and frequent accident hazard.

[0004] After the rear anchor point is released, the movement of the hanging basket mainly relies on the reverse kick wheel to push forward along the wing plate of the rear anchor beam track to overcome the hard friction between the main girder and the walking track. Once the walking speeds on both sides are inconsistent, it is easy to cause the reverse kick wheel to get stuck or even derail, and the track is squeezed and deformed, thus affecting the construction efficiency. In severe cases, it may cause the hanging basket to overturn. Moreover, since the contact area between the reverse kick wheel and the rear anchor beam is small, the stress is concentrated, and the rear anchor beam is channel steel with thin wing plates, which are very easy to deform, affecting the efficiency of the hanging basket forward movement operation. In addition, the walking trolley and the main longitudinal beam of the hanging basket are connected at a single point, and the trolley legs are relatively soft, so the pulleys on both sides are easily out of sync during walking, which leads to the trolley getting stuck and the legs deforming from time to time. Utility Model Content

[0005] The utility model provides a triangular hanging basket walking structure, which aims to change the walking mode, cancel the walking buckle wheels and ensure the walking safety of the triangular hanging basket.

[0006] The utility model is realized through the following technical scheme: a triangular hanging basket walking structure, a rear sliding beam is installed on the main longitudinal beam of the triangular hanging basket, the rear upper cross beam of the triangular hanging basket is located above the rear sliding beam, the rear sliding beam and the rear upper cross beam are slidably matched, and the rear upper cross beam and the finished box beam are fixed to maintain a relative position without moving.

[0007] Compared with the prior art, the utility model has the following advantages and beneficial effects: the walking reverse buckle wheel and the rear anchor beam in the prior art are eliminated in the present scheme, and a rear sliding beam is added to the main longitudinal beam of the triangular hanging basket, and the rear upper cross beam is fixed to the finished box beam to keep the rear upper cross beam in a relative position, and the rear sliding beam and the rear upper cross beam slide in cooperation, so that when the traction jack drives the triangular hanging basket to move forward, the rear sliding beam will be driven forward together, and during the whole process, the rear upper cross beam and the rear sliding beam will jointly play the role of limiting support and guiding, thereby ensuring the safety of the forward movement of the triangular hanging basket and balancing the force of the triangular hanging basket when walking, and the walking structures on both sides of the walking process have stronger walking synchronization, and are not prone to overturning, thereby avoiding affecting the construction efficiency.

[0008] Furthermore, a mounting plate is connected to the bottom of the rear upper cross beam, a roller is rotatably connected to the mounting plate, and the roller is located at the top of the rear sliding beam.

[0009] Beneficial effect: The setting of the mounting plate in this solution facilitates the installation of rollers, which are placed on the top of the rear sliding beam. When the rear sliding beam moves forward with the triangular hanging basket, the rollers can roll on the top surface of the rear sliding beam to ensure that the rear sliding beam moves forward stably with the triangular hanging basket.

[0010] Furthermore, the mounting plate is a channel steel structure.

[0011] Beneficial effect: In this solution, the mounting plate is a channel steel structure, which is convenient for installing the roller and can play a role in stabilizing the installation of the roller.

[0012] Furthermore, two connecting plates are connected to the inner side of the mounting plate, and the roller is located between the two connecting plates and is rotatably connected to the connecting plates.

[0013] Beneficial effect: The arrangement of the two connecting plates in this solution makes it more convenient to install the roller.

[0014] Furthermore, rollers are coaxially connected to both ends of the roller, and the two rollers are rotatably connected to the two connecting plates respectively.

[0015] Beneficial effects: In this solution, the roller is connected to the connecting plate through rollers at both ends.

[0016] Furthermore, the cross section of the rear sliding beam is in an I-shape.

[0017] Beneficial effect: In this solution, the cross section of the rear sliding beam is an I-shaped structure, which is lighter in weight.

[0018] Furthermore, the length of the roller is greater than the width of the rear sliding beam.

[0019] Beneficial effect: Such a setting can increase the contact area between the roller and the rear sliding beam, reduce the stress on the roller, and increase the frequency of turnover use.

[0020] Furthermore, the bottom end of the connecting plate extends to below the top end of the rear sliding beam.

[0021] Beneficial effect: The two connecting plates arranged in this way can play a role in positioning the installation position of the rear sliding beam, so that the installation accuracy of the rear sliding beam is higher, and the rear sliding beam can be greatly offset during the movement, thereby ensuring the stability and safety of the movement of the triangular hanging basket.

[0022] Furthermore, a stiffening plate is connected between the connecting plate and the mounting plate.

[0023] Beneficial effect: The provision of the stiffened plate can improve the strength and firmness of the connection between the connecting plate and the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0025] Figure 1 It is a partial schematic diagram of an embodiment of a triangular hanging basket walking structure of the utility model;

[0026] Figure 2 It is a front view of a triangular hanging basket walking structure in the prior art;

[0027] Figure 3 It is a side view of a triangular hanging basket walking structure in the prior art.

[0028] Marks and corresponding parts names in the attached drawings:

[0029] The rear upper cross beam 1, the mounting plate 2, the connecting plate 201, the rear sliding beam 3, the roller 4, the roller 5, and the main longitudinal beam 6. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1 As shown, this embodiment provides a triangular hanging basket walking structure. In this embodiment, a rear sliding beam 3 is installed on the main longitudinal beam 6 of the triangular hanging basket. The length of the rear sliding beam 3 is determined according to the distance required to move during actual operation. The length of the rear sliding beam 3 is greater than the width of the triangular hanging basket, which facilitates the role of limiting and guiding the movement of the triangular hanging basket.

[0036] In this embodiment, the rear upper cross beam 1 of the triangular hanging basket is located above the rear sliding beam 3, and the rear sliding beam 3 is slidably matched with the rear upper cross beam 1, and the rear upper cross beam 1 and the finished box beam are fixed to maintain a relative position.

[0037] The rear upper cross beam 1 spans across both sides of the triangular hanging basket, and the triangular hanging basket walking structures are respectively located on both sides of the triangular hanging basket.

[0038] Specifically: In this embodiment, a mounting plate 2 is connected to the bottom of the rear upper cross beam 1, and the mounting plate 2 is welded and fixed to the bottom of the rear upper cross beam 1 or fixed by bolts. A roller 4 is rotatably connected to the mounting plate 2, and the roller 4 is located at the top of the rear sliding beam 3. When the rear sliding beam 3 moves with the triangular hanging basket, the roller 4 can roll on the top surface of the rear sliding beam 3.

[0039] In this embodiment, the mounting plate 2 is a channel steel structure, the roller 4 is located inside the groove of the mounting plate 2, and in this embodiment, two connecting plates 201 are connected to the inside of the mounting plate 2, and the roller 4 is located between the two connecting plates 201 and is rotatably connected to the connecting plates 201. Both ends of the roller 4 are coaxially connected with roller shafts 5, and in this embodiment, the roller shafts 5 and the roller 4 are coaxially integrally formed, and the two roller shafts 5 are rotatably connected to the two connecting plates 201 respectively through bearings.

[0040] In this embodiment, the two connecting plates 201 are both welded and fixed to the mounting plate 2 , and in order to enhance the connection strength and stability between the mounting plate 2 and the connecting plate 201 , a stiffening plate is connected between the connecting plate 201 and the mounting plate 2 in this embodiment.

[0041] In this embodiment, the cross-section of the rear sliding beam 3 is I-shaped, and the length of the roller 4 is greater than the width of the rear sliding beam 3. This can increase the contact area between the roller 4 and the top surface of the rear sliding beam 3, reduce the stress on the roller 4, and increase the frequency of turnover use.

[0042] In this embodiment, the bottom end of the connecting plate 201 extends to below the top end of the rear sliding beam 3, so that the connecting plate 201 can play a role in positioning the installation of the rear sliding beam 3, and can also play a role in limiting the rear sliding beam 3, thereby preventing the rear sliding beam 3 from shaking greatly during the movement of the triangular hanging basket in the later stage, thereby ensuring the smooth movement of the triangular hanging basket and further improving the safety of the triangular hanging basket.

[0043] The specific implementation process is as follows: When the improved walking device is used to move the triangular hanging basket forward, the traction jack is still set at the middle support. When the triangular hanging basket structure moves forward, the rear upper cross beam 1 is anchored with the concrete of the beam section of the finished box beam, so that the relative position can be kept unchanged. When the triangular hanging basket moves, the rear sliding beam 3 is driven to move forward. The roller 4 rolls on the top surface of the rear sliding beam 3, so that the rear sliding beam 3 moves forward smoothly with the triangular hanging basket structure. In the whole process, the rear upper cross beam 1 still plays an anchoring role, guiding and limiting the movement of the triangular hanging basket, thereby ensuring the safety of the forward movement of the triangular hanging basket structure.

[0044] The triangular hanging basket is moved forward to its position, the rear sliding beam 3 is temporarily anchored, and the rear upper cross beam 1 is moved to the designed position along the rear sliding beam 3. After anchoring, the next step of construction can be carried out.

[0045] This embodiment optimizes the structure of the walking device, changes the conventional gantry trolley's reverse wheel walking method on the rear anchor beam, and improves the roller 4's rolling method on the top surface of the rear sliding beam 3, making the structure more concise. With the improved walking method, the rear upper crossbeam 1 always plays the role of rear anchor, ensuring the balance of force during the walking of the triangular hanging basket structure and ensuring safety. Compared with the conventional walking method, the contact area between the roller 4 and the hanging basket structure is increased, the stress on the roller 4 is reduced, and the frequency of turnover is increased.

[0046] In actual construction, the improved walking device is used to move the triangular hanging basket forward. It is easy to operate and has a high safety factor. It can improve construction efficiency and reduce labor costs.

[0047] Taking the left bank cross-embankment bridge of the Great West Ring Road as an example, each pier has 16 blocks cast in suspended baskets, and the left and right sections have a total of 64 blocks, saving 5,400 yuan in costs per block, for a total saving of about 345,000 yuan.

[0048] At the same time, compared with the conventional walking method, the forward construction of each segment of the hanging basket can save 0.5-1.0 day, which has made certain technical reserves for further optimization of the triangular hanging basket structure in the future and has broad application prospects.

[0049] Table 1 Comparative analysis of the benefits of each section before and after the hanging basket modification

[0050] Benefit Analysis Project Before modification After modification Remark Manufacturing and installation costs 8000 3000 One-time calculation Process cost 2000 1000 Cost of supporting equipment 2000 1500 Labor costs 2400 1500 Subtotal 12400 7000

[0051] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A triangular hanging basket walking structure, characterized in that: A rear sliding beam is installed on the main longitudinal beam of the triangular hanging basket, and the rear upper cross beam of the triangular hanging basket is located above the rear sliding beam. The rear sliding beam and the rear upper cross beam are slidably matched, and the rear upper cross beam and the finished box beam are fixed to maintain a relative position.

2. The triangular hanging basket walking structure according to claim 1, characterized in that: The bottom of the rear upper cross beam is connected with a mounting plate, and the mounting plate is rotatably connected with a roller, and the roller is located at the top of the rear sliding beam.

3. The triangular hanging basket walking structure according to claim 2 is characterized in that: The mounting plate is a channel steel structure.

4. The triangular hanging basket walking structure according to claim 3 is characterized in that: Two connecting plates are connected to the inner side of the mounting plate, and the roller is located between the two connecting plates and is rotatably connected to the connecting plates.

5. The triangular hanging basket walking structure according to claim 4 is characterized in that: Both ends of the roller are coaxially connected with rollers, and the two rollers are rotatably connected to the two connecting plates respectively.

6. A triangular hanging basket walking structure according to any one of claims 2 to 5, characterized in that: The cross section of the rear sliding beam is in an I-shape.

7. The triangular hanging basket walking structure according to claim 6, characterized in that: The length of the roller is greater than the width of the rear sliding beam.

8. A triangular hanging basket walking structure according to claim 4 or 5, characterized in that: The bottom end of the connecting plate extends below the top end of the rear sliding beam.

9. A triangular hanging basket walking structure according to claim 4 or 5, characterized in that: A stiffening plate is connected between the connecting plate and the mounting plate.

10. The triangular hanging basket walking structure according to claim 1, characterized in that: The rear upper cross beam spans across the two sides of the triangular hanging basket, and the triangular hanging basket walking structure is respectively located on the two sides of the triangular hanging basket.

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