A tunnel filling layer troweling device

Abstract

The utility model discloses a tunnel filling layer troweling device, including troweling subassembly, troweling support, longitudinal shift trolley and longitudinal shift guide rail of being equipped in template, be equipped with the lifting drive part for driving troweling subassembly lifting of troweling support, longitudinal shift trolley is equipped with the transverse both sides of troweling support, longitudinal shift guide rail with longitudinal shift trolley one -to -one corresponding arrangement is equipped with brake mechanism between longitudinal shift guide rail with longitudinal shift trolley. The utility model lifting drive part drives troweling subassembly to drop to the height required by troweling, when longitudinal shift trolley removes along longitudinal shift guide rail, can drive troweling support and troweling subassembly longitudinal removal, and troweling subassembly can complete the troweling operation of filling layer to entire construction interval. For the tunnel with greater longitudinal slope, can make longitudinal shift trolley keep stationary relative to longitudinal shift guide rail through brake mechanism to make the whole set of device stop on the longitudinal slope, prevent the car from sliding, simple structure, good reliability.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to a tunnel filling layer plastering device. Background Technology

[0002] With the significant advancements in tunnel construction technology, higher demands have been placed on construction efficiency and quality. In the construction of the tunnel invert arch filling layer, higher requirements have also been placed on the surface shaping of the filling layer concrete, leading to an increasing demand for filling layer plastering equipment.

[0003] Existing filler layer finishing machines are generally suitable for tunnels with no longitudinal slope or a small longitudinal slope, and the running wheels of the finishing machine can usually achieve normal movement and stopping. However, in some tunnels with a large longitudinal slope, the running wheels of existing finishing machines may slip and become stuck. Furthermore, when the power system fails, the finishing machine cannot stop steadily on the longitudinal slope, which may lead to dangerous situations such as the machine slipping.

[0004] Existing finishing machines, installed on formwork (such as invert arch formwork or side ditch formwork), use hydraulic cylinders and other drive components to raise and lower the finishing components. However, invert arch formwork and side ditch formwork inevitably experience positional errors during installation, including horizontal and vertical errors. The heights of the two sides of the formwork may differ. Relying solely on hydraulic cylinders to control the height of the finishing components makes it difficult to ensure consistent height each time, resulting in the infill layer not being poured to the designed height. Furthermore, existing finishing machines are generally used for standard cross-sections with a fixed width. When the same tunnel has multiple cross-sections of different widths, the finishing machine is not compatible. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tunnel filling layer finishing device with simple structure, high reliability, and the ability to stop stably in tunnels with large longitudinal slopes.

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

[0007] A tunnel filling layer finishing device includes a finishing component, a finishing bracket, a longitudinal trolley, and a longitudinal guide rail mounted on a template. The finishing bracket is equipped with a lifting drive for driving the finishing component to rise and fall. The longitudinal trolley is located on both sides of the finishing bracket. The longitudinal guide rail is arranged in a one-to-one correspondence with the longitudinal trolley. A braking mechanism is provided between the longitudinal guide rail and the longitudinal trolley.

[0008] As a further improvement to the above technical solution: the braking mechanism includes a brake hole provided on the longitudinal guide rail and a retractable brake rod provided on the longitudinal trolley; or, the braking mechanism includes a retractable friction plate provided on the longitudinal trolley.

[0009] As a further improvement to the above technical solution: the troweling bracket is provided with a walking drive component and walking sprockets on both sides of the lateral direction, the longitudinal guide rail is provided with a longitudinal chain, the walking drive component is connected to the walking sprockets, and the longitudinal chain is wound around the walking sprockets one by one.

[0010] As a further improvement to the above technical solution: the tunnel filling layer finishing device also includes a control module. The longitudinal guide rail is provided with a detection element for detecting whether the longitudinal chain is broken. The detection element is connected to the input end of the control module, and the braking mechanism is connected to the output end of the control module.

[0011] As a further improvement to the above technical solution: the detection element is connected to both ends of the longitudinal moving chain to form a closed detection loop; or, the detection element is a visual detection element and is correspondingly set at the end of the longitudinal moving chain; or, the detection element is a force sensor located between the longitudinal moving chain and the longitudinal moving guide rail.

[0012] As a further improvement to the above technical solution: guide sprockets are provided on both sides of the traveling sprocket, and there is a height difference between the guide sprockets and the traveling sprocket.

[0013] As a further improvement to the above technical solution: the longitudinal trolley is equipped with a height adjustment component for adjusting the height of the smearing bracket.

[0014] As a further improvement to the above technical solution: the troweling bracket is provided with an adjusting sleeve with internal threads, the height adjusting component is an adjusting screw and passes through the adjusting sleeve, the troweling bracket and / or the longitudinal trolley is provided with a vertical waist-shaped hole, and the longitudinal trolley and the troweling bracket are connected and limited by a limiting component provided in the vertical waist-shaped hole.

[0015] As a further improvement to the above technical solution: the longitudinal trolley is provided with a transversely adjustable seat, and the smearing bracket is connected to the transversely adjustable seat.

[0016] As a further improvement to the above technical solution: the smearing assembly includes a smearing component, and the smearing component is provided with anti-overflow components on both longitudinal sides; and / or, the smearing component is provided with a vibration component.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This utility model discloses a tunnel filling layer finishing device. A lifting drive unit lowers the finishing assembly to the required finishing height. As the longitudinal trolley moves along the longitudinal guide rail, it drives the finishing support and finishing assembly to move longitudinally. The finishing assembly can complete the finishing work on the filling layer of the entire construction section. For tunnels with a large longitudinal slope, a braking mechanism can keep the longitudinal trolley stationary relative to the longitudinal guide rail, thus stabilizing the entire device on the slope and preventing slippage. The device has a simple structure and high reliability.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the tunnel filling layer finishing device of this utility model.

[0021] Figure 2 This is a top view schematic diagram of the tunnel filling layer finishing device of this utility model.

[0022] Figure 3 This is a side view of the tunnel filling layer finishing device of this utility model.

[0023] Figure 4 This is a side view of the structure of the present invention in its initial state.

[0024] Figure 5 This is a side view of the first embodiment of the braking mechanism in this utility model.

[0025] Figure 6 This is a side view of the second embodiment of the braking mechanism in this utility model.

[0026] Figure 7 This is a side view of the structure of the present invention in the completed smoothing state.

[0027] Figure 8 This is a schematic diagram of the main structure of the present invention for a tunnel with a wider cross-section.

[0028] Figure 9 This is a schematic diagram of the main structure of this utility model for use in narrow-section tunnels.

[0029] The labels in the diagram represent:

[0030] 1. Finishing assembly; 11. Finishing component; 12. Anti-overflow component; 13. Vibration component; 2. Finishing bracket; 21. Lifting drive component; 22. Traveling drive component; 23. Traveling sprocket; 24. Guide sprocket; 25. Adjusting sleeve; 26. Vertical oblong hole; 3. Longitudinal trolley; 31. Height adjustment component; 32. Transverse seat; 4. Template; 5. Longitudinal guide rail; 51. Longitudinal chain; 52. Detection component; 6. Braking mechanism; 61. Brake hole; 62. Telescopic brake lever; 63. Telescopic friction plate. Detailed Implementation

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying 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.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" 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 mechanical connection or an electrical connection; 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 utility model according to the specific circumstances.

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Figures 1 to 3This invention illustrates one embodiment of the tunnel filling layer finishing device. The device includes a finishing component 1, a finishing support 2, a longitudinal trolley 3, and longitudinal guide rails 5 mounted on a template 4 (e.g., an invert arch template, a side ditch template, etc.). The finishing support 2 is equipped with a lifting drive component 21 (e.g., a cylinder, hydraulic cylinder, or electric push rod) for driving the finishing component 1 to rise and fall. The longitudinal trolleys 3 are located on both sides of the finishing support 2. The longitudinal guide rails 5 and the longitudinal trolleys 3 are arranged in a one-to-one correspondence. A braking mechanism 6 is provided between the longitudinal guide rails 5 and the longitudinal trolleys 3. Here, "lateral" refers to the width direction of the tunnel. Figure 1 and Figure 2 The center represents the left-right direction. Correspondingly, the longitudinal direction is the length of the tunnel, and the vertical direction is the height of the tunnel. Preferably, the longitudinal guide rail 5 is an I-shaped guide rail, and the rollers of the longitudinal trolley 3 are located on both sides of the web of the I-shaped guide rail, which can play a good guiding role and prevent the longitudinal trolley 3 from jumping up and down.

[0036] In this embodiment of the tunnel filling layer finishing device, the lifting drive 21 drives the finishing component 1 to descend to the required finishing height. When the longitudinal trolley 3 moves along the longitudinal guide rail 5, it can drive the finishing support 2 and the finishing component 1 to move longitudinally. The finishing component 1 can complete the finishing operation of the filling layer of the entire construction section, specifically as follows: Figure 4 and Figure 7 As shown. For tunnels with a large longitudinal slope (the angle with the horizontal plane is approximately 7° in this embodiment), the braking mechanism 6 can keep the longitudinal trolley 3 stationary relative to the longitudinal guide rail 5, thereby stabilizing the entire device on the longitudinal slope and preventing slippage, specifically as shown in 5 and Figure 6 As shown, it has a simple structure and good reliability.

[0037] See details Figure 1 and Figure 5 In this embodiment, the braking mechanism 6 includes a brake hole 61 on the longitudinal guide rail 5 and a retractable brake rod 62 on the longitudinal trolley 3 (driven by a cylinder, hydraulic cylinder, or electric push rod, for example). When the power system of the longitudinal trolley 3 malfunctions and there is a risk of slippage, the retractable brake rod 62 descends and extends into the brake hole 61, which can effectively stop the longitudinal trolley 3 and the grouting assembly 1 on the longitudinal guide rail 5. The structure is simple and reliable.

[0038] See details Figure 6Of course, in other embodiments, the braking mechanism 6 may also include a retractable friction plate 63 mounted on the longitudinal trolley 3 (e.g., driven by a cylinder, hydraulic cylinder, or electric push rod). When the power system of the longitudinal trolley 3 malfunctions and there is a risk of slippage, the retractable friction plate 63 descends and comes into close contact with the longitudinal guide rail 5, using friction to keep the longitudinal trolley 3 and the finishing assembly 1 stable on the longitudinal guide rail 5. This also improves the safety and reliability of the entire device when applied to tunnels with large longitudinal slopes.

[0039] Furthermore, in this embodiment, the troweling bracket 2 is equipped with a traveling drive component 22 (e.g., a motor, hydraulic motor, etc.) and traveling sprockets 23 on both sides of the lateral direction. The longitudinal guide rail 5 is equipped with a longitudinal chain 51. The traveling drive component 22 is connected to the traveling sprockets 23 (e.g., the traveling drive component 22 drives the transmission shaft to rotate through a sprocket and chain mechanism, and the traveling sprockets 23 are installed at both ends of the transmission shaft, so that the traveling sprockets 23 on both sides can rotate synchronously). The longitudinal chain 51 is wound around the traveling sprockets 23 one-to-one. When the troweling assembly 1 needs to move longitudinally, the traveling drive component 22 drives the traveling sprockets 23 on both sides of the lateral direction to rotate synchronously. During the rotation of the traveling sprockets 23, they roll along the longitudinal chain 51, which can drive the troweling bracket 2, the longitudinal trolley 3, and the troweling assembly 1 to move along the longitudinal guide rail 5. The synchronization is good and the transmission is reliable. When the traveling drive component 22 stops working, the longitudinal trolley 3 and the others can also be fixed in position in real time. Of course, in other embodiments, other methods can also be used to drive the longitudinal trolley 3 to move, such as driving the longitudinal trolley 3 to move back and forth by extending and retracting the hydraulic cylinder, or configuring the rollers of the longitudinal trolley 3 with driving components to achieve active rotation, etc., which will not be elaborated further.

[0040] Furthermore, in this embodiment, the tunnel filling layer finishing device also includes a control module (not shown in the figure, such as a PLC module). A detection element 52 is provided on the longitudinal guide rail 5 to detect whether the longitudinal chain 51 is broken. The detection element 52 is connected to the input end of the control module, and the braking mechanism 6 is connected to the output end of the control module. When the detection element 52 detects a break in the longitudinal chain 51, it transmits a signal to the control module, which then outputs an action signal to the braking mechanism 6. The braking mechanism 6 is activated promptly (the retractable brake lever 62 descends and extends into the brake hole 61, or the retractable friction plate 63 descends and presses against the longitudinal guide rail 5), causing the longitudinal trolley 3 to stop stably on the longitudinal guide rail 5, preventing slippage, improving response speed, and achieving a high degree of automation and intelligence. It should be noted that this control process can be implemented using only the hardware module, without requiring any improvement to the software or program.

[0041] Furthermore, in this embodiment, the detection element 52 is connected to both ends of the longitudinal moving chain 51 to form a closed detection loop. The detection element 52 can determine whether the longitudinal moving chain 51 has broken by detecting signals such as current in the closed loop. When the longitudinal moving chain 51 breaks, the closed loop becomes an open circuit and the current and other signals disappear; conversely, when the longitudinal moving chain 51 does not break, current and other signals can be detected in the closed loop.

[0042] In other embodiments, the detection element 52 is a visual detection element (e.g., a camera) and is correspondingly disposed at the end of the longitudinal movement chain 51. See details. Figure 4 and Figure 7 When the longitudinal chain 51 is intact, both ends are in a taut state. When it breaks, since the longitudinal chain 51 is a flexible structure, it will move downward under the action of gravity, and the shape of both ends will change significantly. This can also accurately determine whether the longitudinal chain 51 is broken.

[0043] Alternatively, the detection element 52 can also be a force sensor located between the longitudinal chain 51 and the longitudinal guide rail 5. When the longitudinal chain 51 is intact, the force sensor can detect the tension of the longitudinal chain 51. Conversely, when the longitudinal chain 51 breaks, the force sensor detects a significant reduction in the tension of the longitudinal chain 51, which can also accurately determine whether the longitudinal chain 51 is broken.

[0044] See details Figure 3 and Figure 4 In this embodiment, guide sprockets 24 are provided on both longitudinal sides of the traveling sprocket 23, and the height of the guide sprockets 24 is greater than the height of the traveling sprocket 23. This structure can increase the length of the longitudinal moving chain 51 wrapped around the traveling sprocket 23, making the transmission more reliable. Of course, in other embodiments, the height of the traveling sprocket 23 can also be greater than the height of the guide sprockets 24.

[0045] See details Figure 1 In this embodiment, the longitudinal trolley 3 (specifically the transverse trolley 32) is equipped with a height adjustment component 31 for adjusting the height of the plastering bracket 2. When there is an error in the installation position of the template 4 on both sides of the transverse direction, resulting in a slight difference in the height of the longitudinal guide rail 5 on both sides, the height of the plastering bracket 2 can be finely adjusted by the height adjustment component 31, and the height of the plastering component 1 can also be finely adjusted accordingly, so that the filling layer can be poured to the originally designed height.

[0046] Furthermore, in this embodiment, the troweling bracket 2 is provided with an adjusting sleeve 25 with internal threads. The height adjusting component 31 is an adjusting screw that passes through the adjusting sleeve 25. The troweling bracket 2 and / or the longitudinal trolley 3 are provided with a vertical oblong hole 26. The longitudinal trolley 3 and the troweling bracket 2 are connected and limited by a limiting component (such as a pin, bolt, etc.) provided in the vertical oblong hole 26. By rotating the adjusting screw, the adjusting sleeve 25 can drive the troweling bracket 2 to move up and down, and the troweling bracket 2 drives the troweling assembly 1 to make fine adjustments to the height position. The vertical oblong hole 26 limits the fine adjustment stroke of the limiting component and prevents the height adjusting component 31 from falling out of the adjusting sleeve 25. The structure is simple, reliable, and easy to adjust. Preferably, a lifting guide structure (guide post and guide sleeve, slide rail and slider, etc.) is provided between the longitudinal trolley 3 and the troweling bracket 2 to avoid the troweling bracket 2 from deviating when it is raised or lowered.

[0047] Furthermore, in this embodiment, the longitudinal trolley 3 is provided with a transversely adjustable transverse seat 32, and the smearing bracket 2 is connected to the transversely adjustable transverse seat 32. See details. Figure 8 and Figure 9 For different widths of the same tunnel cross-section, the lateral distance between the templates 4 will change, and correspondingly, the lateral positions of the longitudinal guide rails 5 and longitudinal chains 51 will also change. At this time, the lateral relative position between the longitudinal trolley 3 and the finishing support 2 can be adjusted by the transverse shift seat 32 to adapt to different tunnel widths. For example, the transverse shift seat 32 and / or the longitudinal trolley 3 are provided with transverse waist-shaped holes, connected and limited by limiting members set in the transverse waist-shaped holes, and guided by transverse guide structures (such as guide posts and guide sleeves, slide rails and sliders, etc.), which can easily realize the transverse movement of the transverse shift seat 32. Preferably, the lateral position of the longitudinal chain 51 on the template 4 is also adjustable to adapt to different tunnel widths.

[0048] See details Figure 3 In this embodiment, the finishing component 1 includes a finishing part 11 (e.g., a finishing boat) for finishing the filling layer. The finishing part 11 is provided with anti-overflow parts 12 (e.g., anti-overflow templates) on both longitudinal sides, which helps to prevent concrete from overflowing and slipping away. The finishing part 11 is provided with a vibration part 13 (various vibrators, etc.), which drives the finishing part 11 to vibrate, which helps to improve the finishing effect.

[0049] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A tunnel-filling layer smoothing device, characterized by: It includes a troweling assembly (1), a troweling bracket (2), a longitudinal trolley (3), and a longitudinal guide rail (5) on a template (4). The troweling bracket (2) is provided with a lifting drive (21) for driving the troweling assembly (1) to rise and fall. The longitudinal trolley (3) is located on both sides of the troweling bracket (2). The longitudinal guide rail (5) is provided in a one-to-one correspondence with the longitudinal trolley (3). A braking mechanism (6) is provided between the longitudinal guide rail (5) and the longitudinal trolley (3).

2. The tunnel fill layer troweling apparatus of claim 1, wherein: The braking mechanism (6) includes a brake hole (61) on the longitudinal guide rail (5) and a retractable brake rod (62) on the longitudinal trolley (3); or, the braking mechanism (6) includes a retractable friction plate (63) on the longitudinal trolley (3).

3. The tunnel fill layer troweling apparatus of claim 1, wherein: The grouting bracket (2) is provided with a walking drive component (22) and walking sprockets (23) on both sides of the lateral direction. The longitudinal guide rail (5) is provided with a longitudinal chain (51). The walking drive component (22) is connected to the walking sprockets (23). The longitudinal chain (51) is wound around the walking sprockets (23) one by one.

4. The tunnel fill layer troweling apparatus of claim 3, wherein: It also includes a control module. The longitudinal guide rail (5) is provided with a detection element (52) for detecting whether the longitudinal chain (51) is broken. The detection element (52) is connected to the input end of the control module, and the braking mechanism (6) is connected to the output end of the control module.

5. The tunnel fill layer troweling apparatus of claim 4, wherein: The detection element (52) is connected to both ends of the longitudinal chain (51) to form a closed detection loop; or, the detection element (52) is a visual detection element and is set corresponding to the end of the longitudinal chain (51); or, the detection element (52) is a force sensor set between the longitudinal chain (51) and the longitudinal guide rail (5).

6. The tunnel fill layer troweling apparatus of claim 3, wherein: The traveling sprocket (23) has guide sprockets (24) on both longitudinal sides, and there is a height difference between the guide sprockets (24) and the traveling sprocket (23).

7. Tunnel lining trowelling apparatus according to any one of claims 1 to 6, wherein: The longitudinal trolley (3) is equipped with a height adjustment component (31) for adjusting the height of the smearing bracket (2).

8. The tunnel fill layer troweling apparatus of claim 7, wherein: The troweling bracket (2) is provided with an adjusting sleeve (25) with internal threads. The height adjusting component (31) is an adjusting screw that passes through the adjusting sleeve (25). The troweling bracket (2) and / or the longitudinal trolley (3) are provided with a vertical waist-shaped hole (26). The longitudinal trolley (3) and the troweling bracket (2) are connected and limited by a limiting component provided in the vertical waist-shaped hole (26).

9. The tunnel filling layer finishing device according to any one of claims 1 to 6, characterized in that: The longitudinal trolley (3) is provided with a transverse sliding seat (32) with adjustable lateral position, and the smearing bracket (2) is connected to the transverse sliding seat (32).

10. The tunnel fill layer troweling device of any one of claims 1 to 6, wherein: The smearing assembly (1) includes a smearing component (11), which has anti-overflow components (12) on both longitudinal sides; and / or, the smearing component (11) is provided with a vibration component (13).

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