Movable vibrating trowelling system for trestle

Abstract

A movable vibration and smoothing system for trestle bridge relates to the technical field of concrete vibration and smoothing, and comprises a walking trolley, a lifting device and a roller shaft type vibration and smoothing device. The walking trolley is installed on the top rail of a tunnel construction trolley, and the height of the roller shaft type vibration and smoothing device is adjusted through the integrated lifting device. The vibration and smoothing device comprises a distributing spiral shaft, a paving roller shaft, a smoothing walking roller shaft and an insert type vibrator, forming a multi-stage cooperative working mechanism. The three cooperative actions of the distributing spiral shaft, the paving roller shaft and the smoothing walking roller shaft improve the uniformity, compactness and surface flatness of concrete paving. The insert type vibrator is arranged between the distributing spiral shaft and the paving roller shaft, can immediately carry out deep layer high frequency vibration after preliminary paving of concrete, effectively removes internal bubbles and prevents quality defects. The auxiliary walking wheel ensures the consistency of the concrete surface flatness and the design elevation.

Description

Technical Field

[0001] This utility model relates to the field of concrete vibration and smoothing technology, and in particular to a movable vibration and smoothing system for trestle bridges. Background Technology

[0002] In current tunnel and underground engineering concrete construction, concrete vibration and smoothing operations in trestle areas still largely rely on traditional manual operation or single-function semi-mechanized equipment. This approach has significant drawbacks: First, manual vibration makes it difficult to ensure uniform compaction, easily leading to common quality defects such as honeycomb, pitting, and voids. Second, conventional vibration and smoothing equipment are usually installed separately, requiring multiple relocations and repositioning, which is not only inefficient but also prone to causing discontinuity in vibration and smoothing operations at construction joints, affecting overall flatness. Third, while some existing automated devices have some mobility, they are mostly fixed-height structures, unable to flexibly adapt to concrete surfaces of varying thicknesses or elevations on trestle bridges, thus limiting the equipment's applicability. Furthermore, they may even require complete disassembly or hoisting during relocation, severely impacting the construction schedule.

[0003] More importantly, existing equipment generally lacks systematic integration of concrete paving, vibration, and smoothing processes. For example, uneven concrete distribution during the paving stage often requires manual intervention for correction, while subsequent vibration is insufficient to cover areas that have already begun to set, resulting in a disconnect between the processes.

[0004] The aforementioned defects severely restrict the automation, efficiency, and high-quality development of concrete construction in tunnel trestle areas. There is an urgent need for a new type of vibratory tamping and smoothing system that is structurally stable, functionally integrated, flexibly movable, and adaptable to complex working conditions, in order to make up for the shortcomings of existing technologies in terms of synergy, adaptability, and construction quality control. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses a movable vibratory tamping and smoothing system for trestle bridges.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] A movable vibratory troweling system for trestle bridges includes:

[0008] The traveling trolley is installed on the track on top of the tunnel construction trolley;

[0009] The lifting device is installed at the bottom of the traveling trolley;

[0010] The roller-type vibratory tamping and smoothing device is installed at the bottom of the lifting device; the height of the roller-type vibratory tamping and smoothing device can be adjusted by the lifting device.

[0011] The roller-type vibratory leveling device includes:

[0012] The traveling frame is connected to the bottom of the lifting device.

[0013] The parallel roller shaft is installed on one side of the bottom of the traveling frame;

[0014] The distribution screw shaft is installed on the other side of the bottom of the walking frame; it is used to disperse the accumulated concrete.

[0015] The paving roller is installed at the bottom of the traveling frame between the parallel trowel roller and the sizing auger; the traveling frame is equipped with motors for driving the parallel trowel roller, the sizing auger, and the paving roller respectively; the paving roller rotates at a higher speed than the parallel trowel roller.

[0016] An immersion vibrator consists of multiple vibrators spaced apart along the length of the traveling frame; the vibrating part of the immersion vibrator is located between the averaging auger shaft and the paving roller shaft.

[0017] Preferably, the lifting device comprises:

[0018] The top of the fixed tube is fastened to the corresponding traveling trolley.

[0019] The movable tube is movably inserted into the fixed tube at its top and securely connected to the traveling frame at its bottom.

[0020] The telescopic cylinder is installed inside the top of the fixed tube, and the bottom of the telescopic cylinder is connected to the corresponding movable tube; the telescopic cylinder drives the movable tube to move up and down.

[0021] Preferably, the distributed spiral shaft is provided with multiple spiral blades spaced apart, and the spiral directions of two adjacent spiral blades are opposite.

[0022] Preferably, the insert vibrator is slidably connected to the traveling frame via a slide rail; the traveling frame is equipped with a drive device for driving the insert vibrator to reciprocate.

[0023] Preferably, auxiliary traveling wheels are installed at both ends of the traveling frame at positions corresponding to the averaging spiral shaft and the paving roller shaft.

[0024] Preferably, the paving roller is a hollow shaft with an eccentric block installed inside.

[0025] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0026] (1) This utility model achieves efficient transfer and precise positioning of the entire set of equipment between work areas by installing the traveling trolley on the top track of the tunnel construction trolley and integrating the lifting device and the roller vibrating and smoothing device. When the lifting device lifts the roller vibrating and smoothing device to a suspended state, the traveling trolley can move freely along the track, avoiding interference with the already poured concrete surface during equipment transfer, and significantly improving construction efficiency and work continuity.

[0027] (2) The roller-type vibratory troweling device of this utility model integrates a spreading spiral shaft, a spreading roller shaft, a troweling parallel traveling roller shaft and an immersion vibrator to form a multi-level collaborative operation mechanism. The spreading spiral shaft realizes the bidirectional uniform dispersion of concrete through spiral blades with opposite rotation directions. The spreading roller shaft has an eccentric block inside and generates continuous vibration under high-speed rotation to realize the initial spreading and compaction of concrete. The troweling parallel traveling roller shaft completes the surface leveling while the support device moves. The synergistic effect of the three significantly improves the uniformity, compactness and surface smoothness of concrete spreading.

[0028] (3) The immersion vibrator of this utility model is arranged between the averaging auger shaft and the paving roller shaft, which can perform deep high-frequency vibration immediately after the initial paving of concrete, effectively eliminating internal air bubbles, preventing quality defects such as honeycomb and pitting, and greatly improving the overall density and durability of the concrete structure. At the same time, the immersion vibrator realizes reciprocating movement along the length of the walking frame through the slide rail and the drive device, dynamically expanding the range of action during the vibration process, further improving the uniformity of concrete density, and is especially suitable for wide-span trestle bridge construction scenarios.

[0029] (4) The auxiliary walking wheels set at both ends of the walking frame of this utility model contact the formwork on both sides of the concrete, which not only play a limiting role, but also effectively control the lowest descent position of the device, preventing the concrete surface from sinking or the elevation from deviating due to excessive pressure, thereby ensuring the flatness of the concrete surface is consistent with the design elevation, and improving the overall construction quality and appearance. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a side view of the present invention;

[0032] Figure 3 This is a schematic diagram of the lifting device.

[0033] In the diagram: 1. Traveling trolley; 2. Lifting device; 2-1. Fixed pipe; 2-2. Movable pipe; 2-3. Telescopic cylinder; 3. Auxiliary traveling wheel; 4. Traveling frame; 5. Parallel traveling roller shaft; 6. Spreading auger shaft; 7. Spreading roller shaft; 8. Immersion vibrator; 9. Drive device. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Example 1:

[0038] Combined with appendix Figures 1-2 A movable vibratory tamping and smoothing system for trestle bridges includes a traveling trolley 1, a lifting device 2, and a roller-type vibratory tamping and smoothing device. The traveling trolley 1 is mounted on a track atop a tunnel construction trolley, supporting the entire vibratory tamping and smoothing device and enabling its movement along the track. The lifting device 2 is fixedly installed at the bottom of the traveling trolley 1, and its bottom is connected to the roller-type vibratory tamping and smoothing device. The vertical position of the roller-type vibratory tamping and smoothing device is adjusted via the lifting device 2. When the roller-type vibratory tamping and smoothing device is lifted to a suspended state by the lifting device 2, the traveling trolley 1 can move freely along the track atop the construction trolley, thereby transferring the entire roller-type vibratory tamping and smoothing device between work areas.

[0039] As attached Figure 2As shown, there are two traveling trolleys 1 and two lifting devices 2, arranged at intervals along a direction perpendicular to the tunnel construction trolley track. The two lifting devices 2 are connected by a connecting beam, so that the two traveling trolleys 1 and the two lifting devices 2 form an integral structure, improving the stability and synchronization of the system operation. In actual operation, the lifting device 2 lowers the roller vibratory leveling device to a predetermined height, so that it contacts the newly poured concrete surface, and begins the vibration and leveling operation.

[0040] The roller-type vibratory troweling device includes a traveling frame 4, a parallel traveling roller 5, a spreading spiral shaft 6, a paving roller 7, and an immersion vibrator 8. The traveling frame 4, as the main structure of the device, is connected at its top to the bottom of the lifting device 2, supporting and fixing the other functional components. The parallel traveling roller 5 is installed on one side of the bottom of the traveling frame 4, and the spreading spiral shaft 6 is installed on the other side. Multiple spiral blades are spaced apart on the shaft of the spreading spiral shaft 6, with adjacent spiral blades rotating in opposite directions to achieve bidirectional dispersion of the concrete. The paving roller 7 is installed in the area between the parallel traveling roller 5 and the spreading spiral shaft 6 at the bottom of the traveling frame 4. The paving roller 7 is a hollow structure with an eccentric block fixedly installed inside. The traveling frame 4 is also equipped with multiple motors, which drive the parallel traveling roller 5, the spreading spiral shaft 6, and the paving roller 7 to operate independently. The rotational speed of the paving roller 7 is set higher than that of the parallel traveling roller 5 to enhance the paving effect. During system operation, the spreading spiral shaft 6 first disperses the accumulated concrete to both sides by rotating; then, the spreading roller shaft 7 rotates at high speed under the drive of the motor. Due to the presence of the eccentric block inside, it generates continuous vibration during the rotation, which further promotes the even spreading and initial compaction of the concrete; finally, the smoothing parallel roller shaft 5 rolls on the concrete surface, supporting the movement of the entire device on the one hand, and smoothing the concrete surface on the other.

[0041] In addition, multiple immersion vibrators 8 are spaced apart along the length of the traveling frame 4, with the vibrating part of each immersion vibrator 8 located in the area between the spreading auger shaft 6 and the paving roller shaft 7. After the spreading auger shaft 6 completes the initial dispersion of the concrete, the immersion vibrators 8 are immediately inserted into the concrete, using high-frequency vibration to remove air bubbles and deeply compact the concrete, making its internal structure denser and effectively avoiding quality defects such as honeycomb and pitting.

[0042] Example 2:

[0043] Combined with appendix Figure 3A movable vibratory tamping and smoothing system for trestle bridges differs from Embodiment 1 in that, based on Embodiment 1, the lifting device 2 specifically includes a fixed pipe 2-1, a movable pipe 2-2, and a telescopic cylinder 2-3. The top of the fixed pipe 2-1 is fixedly connected to the traveling trolley 1, the top of the movable pipe 2-2 is inserted into the fixed pipe 2-1 and forms a sliding fit therewith, and its bottom is securely connected to the traveling frame 4. The telescopic cylinder 2-3 is installed at the top of the inner cavity of the fixed pipe 2-1, and the piston rod end of the telescopic cylinder 2-3 is correspondingly connected to the top or inner wall of the movable pipe 2-2. Through the telescopic movement of the telescopic cylinder 2-3, the movable pipe 2-2 can be driven to move up and down axially along the fixed pipe 2-1, thereby driving the traveling frame 4 and the entire roller-type vibratory tamping and smoothing device to achieve lifting and adjustment. This structure is simple, reliable in operation, easy to maintain, and suitable for construction environments with limited space, such as tunnel trestle bridges.

[0044] Example 3:

[0045] Combined with appendix Figure 1 A movable vibratory tamping and smoothing system for trestle bridges is further improved based on Embodiment 1 or Embodiment 2: An immersion vibrator 8 is slidably connected to a traveling frame 4 via a slide rail, allowing the immersion vibrator 8 to move along the length of the traveling frame 4; simultaneously, a drive device 9 is installed on the traveling frame 4 to drive the immersion vibrator 8 to reciprocate along the slide rail. While the immersion vibrator 8 is performing tamping operations, the drive device 9 can drive it to periodically reciprocate along the width of the concrete, expanding the tamping coverage and improving the overall density and uniformity of the concrete. The drive device 9 can be a telescopic cylinder or a screw-nut mechanism driven by a motor; the screw-nut mechanism is a mature existing technology, and its specific structural composition and working principle will not be described in detail here.

[0046] Example 4:

[0047] Combined with appendix Figure 2 A movable vibratory troweling system for trestle bridges is further optimized based on any one of the embodiments in Examples 1 to 3: auxiliary traveling wheels 3 are installed at both ends of the traveling frame 4, corresponding to the positions between the sizing auger shaft 6 and the paving roller shaft 7. During operation, the two auxiliary traveling wheels 3 contact the formwork on both sides of the concrete, serving as a limit and support, effectively restricting the lowest descent position of the roller-type vibratory troweling device, preventing excessive sinking of the device from causing the concrete surface to be crushed or inconsistent troweling height, thereby ensuring the overall flatness and elevation accuracy of the concrete surface.

[0048] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. A movable vibratory tamping and smoothing system for trestle bridges, characterized in that, include: The traveling trolley (1) is installed on the track on the top of the tunnel construction trolley; Lifting device (2) is installed at the bottom of the traveling trolley (1); A roller-type vibratory leveling device is installed at the bottom of the lifting device (2); Adjust the height of the roller-type vibratory leveling device by using the lifting device (2); The roller-type vibratory leveling device includes: The traveling frame (4) is connected to the bottom of the lifting device (2); The parallel roller shaft (5) is installed on one side of the bottom of the walking frame (4); The distribution screw shaft (6) is installed on the other side of the bottom of the walking frame (4); it is used to disperse the accumulated concrete. The paving roller (7) is installed at the bottom of the traveling frame (4) between the troweling parallel roller (5) and the sizing auger (6); the traveling frame (4) is equipped with motors for driving the troweling parallel roller (5), the sizing auger (6) and the paving roller (7) respectively; the rotational speed of the paving roller (7) is higher than that of the troweling parallel roller (5); Insertion vibrators (8) are multiple of which are spaced apart along the length of the walking frame (4); the vibrating part of the insertion vibrator (8) is located between the sizing auger shaft (6) and the paving roller shaft (7).

2. The movable vibratory tamping and smoothing system for trestle bridges as described in claim 1, characterized in that, The lifting device (2) includes: The top of the fixed tube (2-1) is fastened to the corresponding traveling trolley (1); The movable tube (2-2) is movably inserted into the fixed tube (2-1) at its top and is securely connected to the walking frame (4) at its bottom; The telescopic cylinder (2-3) is installed inside the top of the fixed tube (2-1), and the bottom of the telescopic cylinder (2-3) is connected to the movable tube (2-2); the movable tube (2-2) is driven to move up and down by the telescopic cylinder.

3. The movable vibratory tamping and smoothing system for trestle bridges as described in claim 1, characterized in that: The distributed spiral shaft (6) has multiple spiral blades spaced apart on its shaft body, with adjacent spiral blades rotating in opposite directions.

4. The movable vibratory tamping and smoothing system for trestle bridges as described in claim 1, characterized in that: The insert vibrator (8) is slidably connected to the walking frame (4) via a slide rail; the walking frame (4) is equipped with a drive device (9) for driving the insert vibrator (8) to move back and forth.

5. The movable vibratory tamping and smoothing system for trestle bridges as described in claim 1, characterized in that: Auxiliary walking wheels (3) are installed at both ends of the walking frame (4) at positions corresponding to the sizing spiral shaft (6) and the paving roller shaft (7).

6. The movable vibratory tamping and smoothing system for trestle bridges as described in claim 1, characterized in that: The paving roller (7) is a hollow shaft with an eccentric block installed inside.

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