Novel tunnel inverted arch slip form machine

Abstract

The utility model relates to a novel tunnel inverted arch slip form machine, and belongs to the technical field of tunnel concrete construction equipment. Comprising a walking truss capable of adjusting the construction height, a scraper conveying assembly for transversely conveying materials, a temporary storage bin for paving the materials in a temporary storage mode and an ironing plate for leveling concrete. The scraper conveying assembly is arranged at the lower end of the walking truss, the temporary storage bin is correspondingly arranged below the scraper conveying assembly, and the ironing plate is arranged behind the temporary storage bin; a high-frequency vibrating assembly used for vibrating the concrete materials in the temporary storage bin is arranged on one side of the walking truss. According to the tunnel inverted arch slip form machine, through cooperative work of the scraper conveying assembly, the temporary storage bin and the ironing plate, integrated material distribution, paving and vibration leveling construction can be conducted on a tunnel inverted arch, intelligent control can be achieved, work efficiency is high, and construction quality is high.

Description

Technical Field

[0001] The utility model relates to a novel tunnel invert slipform machine, belonging to the technical field of tunnel concrete construction equipment. Background Art

[0002] During tunnel construction, concrete paving is carried out on the tunnel invert according to the structural requirements of the tunnel. The tunnel invert is an upward arch structure, generally a reinforced concrete structure. It is a reverse arch structure set at the bottom of the tunnel to improve the stress conditions of the upper support structure. It is one of the main components of the tunnel structure.

[0003] Due to the limitation of space in the tunnel, conventional slipform machines cannot be well adapted to the construction of tunnel inverts. Moreover, conventional slipform machines are mostly used for flat concrete construction and cannot be directly used for arched concrete construction. Even if they are modified, the effect is not good. The conventional slipform machines cannot guarantee the construction efficiency and quality when constructing tunnel inverts. Utility Model Content

[0004] The utility model aims to provide a novel tunnel invert slipform machine which is suitable for tunnel invert construction and can ensure construction efficiency and construction quality.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A novel tunnel invert slipform machine comprises a traveling truss with adjustable construction height, a scraper conveying assembly for transversely conveying materials, a buffer bin for buffer-type paving of materials and an ironing plate for leveling concrete; the scraper conveying assembly is arranged at the lower end of the traveling truss, the buffer bin is arranged correspondingly below the scraper conveying assembly, and the ironing plate is arranged behind the buffer bin; a high-frequency vibrating assembly for vibrating concrete material in the buffer bin is arranged on one side of the traveling truss.

[0007] A further improvement of the technical solution of the utility model is that a vibration moving track is arranged on one side of the walking truss, and the high-frequency vibration component moves on the vibration moving track.

[0008] A further improvement of the technical solution of the utility model is as follows: the high-frequency vibrating assembly includes a transversely movable trolley and a plurality of high-frequency vibrating rods arranged on the transversely movable trolley; the high-frequency vibrating rods are installed on the transversely movable trolley through a lifting cylinder.

[0009] A further improvement of the technical solution of the utility model is that two sets of vibrating moving tracks are arranged relatively, and two sets of hanging wheels are arranged on the transverse moving trolley, which is installed on the vibrating moving track through the hanging wheels.

[0010] The further improvements of the technical solution of the utility model are as follows: the shape of the buffer bin is consistent with the cross-sectional shape of the tunnel paving surface; and a plurality of partition plates are arranged in the buffer bin.

[0011] The further improvement of the technical solution of the utility model is as follows: the scraper conveying assembly includes a feeding bin and a scraper conveying mechanism for conveying materials from a feeding port; a plurality of drop openings are arranged at intervals at the bottom of the feeding bin; and the drop openings are opened and closed by a cover plate.

[0012] The further improvement of the technical solution of the utility model is as follows: the scraper conveying mechanism includes a conveying chain and scrapers fixedly arranged on the conveying chain at intervals; the conveying chain is driven by a sprocket driven by a motor to rotate in a circular manner; the cross-sectional shape of the feed bin is consistent with that of the tunnel paving surface.

[0013] The further improvement of the technical solution of the utility model is as follows: the feeding bin and the buffer bin are both modular assembly structures; and a through hole is arranged on the partition plate.

[0014] A further improvement of the technical solution of the utility model is that it also includes an inclined discharge hopper for conveying materials from the cement tank truck to the feeding port of the scraper conveying assembly.

[0015] A further improvement of the technical solution of the utility model is as follows: the traveling truss comprises a traveling frame having an upper portion and a main truss installed below the traveling frame through a height-adjusting cylinder; traveling wheels are arranged on the upper portion of the traveling frame, and the traveling wheels move on the trestle of the tunnel.

[0016] Due to the adoption of the above technical solution, the technical effects achieved by the utility model are:

[0017] The tunnel invert slipform machine of the utility model can carry out integrated material distribution, paving, vibration and leveling construction on the tunnel invert through the cooperation of the walking truss, the scraper conveying assembly, the buffer bin, the high-frequency vibrating assembly and the ironing plate, can realize intelligent control, has high working efficiency and high construction quality.

[0018] The utility model provides a vibrating moving track for a high-frequency vibrating component, installs the high-frequency vibrating component on the vibrating moving track, and enables the high-frequency vibrating component to move on the vibrating moving track to ensure that concrete at various lateral positions of a buffer bin can be vibrated.

[0019] The high-frequency vibrating rod of the high-frequency vibrating assembly of the utility model is installed on the transverse moving trolley through the lifting cylinder, and the lifting cylinder is used to adaptively fine-tune the vibrating height of the high-frequency vibrating rod. After the transverse moving trolley moves transversely to the position where vibration is required, the high-frequency vibrating rod is lowered to a certain position through the lifting cylinder and then begins to vibrate. After the vibration is completed, it is raised through the lifting cylinder, and the transverse moving trolley starts to move to the next vibration point, which can ensure that the concrete at each depth position of the tunnel invert is fully and effectively vibrated.

[0020] The utility model adopts a scraper conveying assembly to convey materials. A scraper conveying mechanism is arranged in the feeding bin. The scraper conveying mechanism drives multiple scrapers to scrape and convey materials through a conveying chain, which can realize efficient and high-speed material conveying and improve work efficiency. The opening and closing degree of the feeding bin of the scraper conveying assembly is controlled by a cover plate, which is convenient for controlling the falling speed and falling amount of the material.

[0021] The utility model adopts a modular assembly structure to arrange both the feeding bin and the buffer bin, and can be assembled according to actual needs to adapt to construction surfaces of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 2 It is the front view of the utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of the buffer bin and scraper conveying assembly of the utility model;

[0025] Figure 4 It is a three-dimensional schematic diagram of the scraper conveying assembly of the utility model;

[0026] Figure 5 This is the front view of the scraper conveying assembly of the utility model;

[0027] Figure 6 This is a schematic diagram of the interior of the feed bin of the utility model;

[0028] Figure 7 This is a schematic diagram of the high-frequency vibrating assembly of the utility model;

[0029] Figure 8 This is a schematic diagram of the cache bin of the utility model;

[0030] Fig. 9 It is a schematic diagram of the working state of the utility model;

[0031] Among them, 1. main truss, 2. buffer bin, 3. ironing board, 4. vibrating moving track, 5. horizontal moving trolley, 6. high-frequency vibrating rod, 7. lifting cylinder, 8. hanging wheel, 9. partition plate, 10. feed bin, 11. drop port, 12. cover plate, 13. conveying chain, 14. scraper, 15. inclined discharge hopper, 16. trestle, 17. walking frame, 18. height adjustment cylinder, 19. walking wheel, 20. support rod, 21. support beam. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] The utility model is a new type of tunnel invert slipform machine, which is mainly suitable for the integrated construction of concrete paving, vibrating and leveling of the invert in the tunnel. A trestle is arranged in the tunnel, and the slipform machine is suspended on the trestle to construct the tunnel invert. A track for the slipform machine to walk is arranged on the trestle. In the following description, the direction in which the machine moves forward is the front side.

[0035] like Figure 1 , Figure 2 As shown, the slipform machine mainly includes a walking truss, a scraper conveying assembly, a buffer bin 2 and an ironing plate 3. The walking truss is the main frame structure of the machine. The scraper conveying assembly, the buffer bin 2 and the ironing plate 3 are all arranged on the walking truss, and can drive the whole machine to move and control the construction height. The scraper conveying assembly is used to transport the material laterally, from the feeding port on one side to the other side. The buffer bin 2 is used to perform a buffer-type paving of the material to control the shape and thickness of the paving surface. The ironing plate 3 is behind the buffer bin 2 and is used to further level the surface after paving.

[0036] like Figure 3 , Figure 4As shown, the scraper conveying assembly is arranged at the lower end of the traveling truss, and a buffer bin 2 is arranged correspondingly below the scraper conveying assembly, and the scraper conveying assembly injects the material into the buffer bin 2. A screed plate 3 is arranged behind the buffer bin 2. In addition, a high-frequency vibrating assembly is also arranged for vibrating the concrete material in the buffer bin 2. The high-frequency vibrating assembly is located at one side of the rear of the traveling truss.

[0037] The walking truss of the slipform machine can drive the whole machine to walk and can also adjust the overall height of the construction components. Figure 1 , Figure 2 As shown, the traveling truss includes an upper traveling frame 17 and a lower main truss 1, and the main truss 1 is installed below the traveling frame 17 through a height adjustment cylinder 18. The upper end of the height adjustment cylinder 18 is fixed to the traveling frame 17, and the lower end is a movable end fixed to the main truss 1. The height of the main truss 1 is adjusted by the extension and contraction of the height adjustment cylinder 18. At least two groups of height adjustment cylinders 18 are relatively arranged. Usually, four height adjustment cylinders 18 are arranged, and two groups of two are located at both ends of the main truss 1. The height adjustment cylinder 18 can also adjust the level of the main truss 1. The scraper conveying assembly, the buffer bin 2 and the ironing plate 3 are all arranged on the main truss 1. A traveling wheel 19 is arranged on the upper part of the traveling frame 17, and the traveling wheel 19 is placed on the trestle 16 of the tunnel. The trestle 16 has a track, and the traveling wheel 19 moves on the track. The traveling wheel 19 is driven by a motor and a reducer.

[0038] The slipform machine is provided with a high-frequency vibrating assembly to vibrate the concrete in the buffer bin 2. In order to realize that the high-frequency vibrating assembly vibrates the concrete at various positions in the buffer bin 2, multiple groups of high-frequency vibrating assemblies can be provided along the buffer bin 2. Alternatively, as shown in the figure, a vibrating moving track 4 is provided for the high-frequency vibrating assembly, and the high-frequency vibrating assembly is installed on the vibrating moving track 4, so that the high-frequency vibrating assembly moves on the vibrating moving track 4 to vibrate the concrete at various transverse positions of the buffer bin 2.

[0039] like Figure 4 , Figure 7 As shown, specifically, the high-frequency vibration assembly includes a transverse moving trolley 5 and a plurality of high-frequency vibrating rods 6. A plurality of high-frequency vibrating rods 6 are arranged downward on the transverse moving trolley 5. The high-frequency vibrating rods 6 are mounted on the transverse moving trolley 5 through a lifting cylinder 7. Here, the lifting cylinder 7 is fixed on the transverse moving trolley 5, and a mounting plate is provided at the end of the lifting rod facing downward of the lifting cylinder 7, and the high-frequency vibrating rods 6 are fixed on the mounting plate. The lifting cylinder 7 is used to adaptively fine-tune the vibration height of the high-frequency vibrating rods 6. After the transverse moving trolley 5 moves laterally to the position where vibration is required, the high-frequency vibrating rods 6 are lowered to a certain position by the lifting cylinder 7 and then begin to vibrate. After the vibration is completed, they are lifted by the lifting cylinder 7, and the transverse moving trolley 5 starts to move to the next vibration point, and the above-mentioned vibration working process is repeated.

[0040] Further, preferably, two sets of vibrating moving tracks 4 are arranged opposite to each other, and correspondingly, two sets of hanging wheels 8 are arranged on the lateral moving trolley 5, and the lateral moving trolley 5 is installed on the vibrating moving track 4 through the hanging wheels 8, so that the movement of the lateral walking trolley 5 is relatively stable. In order to adapt to the arc shape of the tunnel invert, the vibrating moving track 4 can also be set to an arc profile.

[0041] like Figure 8 As shown, in order to adapt to the shape of the tunnel invert, the shape of the buffer bin 2 is set to an arch shape that is consistent with the cross-sectional shape of the tunnel paving surface. In addition, a number of partitions 9 are set in the buffer bin 2 to prevent the random flow of concrete. At the same time, through holes can also be set on the partitions 9 to allow the concrete in the buffer bin 2 to flow through the through holes in a limited manner. The partitions 9 divide the buffer bin 2 into different sub-bins. If the concrete material in the sub-bins is uneven, it flows through the through holes on the partitions 9. The through holes on the partitions 9 are preferably set in the front of the partitions 9. Here, the direction of machine travel is the front.

[0042] The concrete material is first input into the scraper conveyor assembly, and then the scraper conveyor assembly injects the material into the buffer bin 2 more evenly. Figure 4 , Figure 5 , Figure 6 As shown, the scraper conveying assembly includes a feeding bin 10 and a scraper conveying mechanism arranged in the feeding bin 10. One end of the feeding bin 10 is a feeding port, and the scraper conveying mechanism carries the material from the feeding port. A plurality of drop-out ports 11 are arranged at intervals at the bottom of the feeding bin 10; the drop-out ports 11 correspond to the buffer bin 2. A cover plate 12 is arranged at the drop-out port 11, and the cover plate 12 controls the opening and closing of the drop-out port and the degree of opening and closing to control the amount of material. The cover plate 12 is driven to move by a hydraulic cylinder. The cover plate 12 can be an arc-shaped plate, the upper part of which is hinged to the drop-out port 11, and one side of the lower part is connected to the telescopic rod of the hydraulic rod. Or the cover plate 12 is a flat plate, and a slide rail groove is arranged at the drop-out port 11, the cover plate 12 is installed in the slide rail groove, and one end of the cover plate 12 is connected to the telescopic rod of the hydraulic cylinder. Specifically as Figure 5 , Figure 6 shown.

[0043] A plurality of drop openings 11 are provided, and the drop openings 11 are distributed along the length direction of the quantity bin 10 , so as to ensure that the materials dropped into the buffer bin 2 are distributed more evenly.

[0044] Further, specifically, the scraper conveying mechanism includes a conveying chain 13 and a plurality of scrapers 14 fixedly arranged on the conveying chain 13 at intervals. The scrapers 14 scrape and push the material. The conveying chain 13 is arranged along the length direction of the feed bin 10, and the scrapers 14 are used to scrape and transport the material. Sprockets are arranged at both ends of the conveying chain 3, and the sprocket at one end is driven to rotate by a motor, thereby driving the entire conveying chain 13 to rotate in a circular manner. The conveying chain 13 drives the scraper 14 to move and rotate continuously to scrape and transport the concrete material. The two sprockets are respectively a driving sprocket and a driven sprocket, and the driving sprocket is driven by a motor and a reducer. Since the feed bin 10 has an arc-shaped profile, the lateral direction of the conveying chain 13 also has a similar arc-shaped profile. In order to make the conveyor chain 13 present an arc-shaped profile, the driving sprocket and the driven sprocket at both ends are made higher than the plane where the main body of the conveyor chain 13 is located; at the same time, a number of support rods 20 are fixedly arranged on the side wall of the feeding bin 10, and then a support beam 21 is fixedly arranged on the support rod 20 along the running direction of the conveyor chain 13, and the conveyor chain 13 slides on the support beam 21. Figure 6 shown.

[0045] In order to adapt to the shape of the tunnel invert, the feed bin 10 is also configured to be an arch shape consistent with the cross-sectional shape of the tunnel paving surface.

[0046] In the present technical solution, preferably, both the feed bin 10 and the buffer bin 2 are configured as a modular assembly structure, which can be assembled according to actual needs, thereby being able to adapt to construction surfaces of different width specifications.

[0047] In this practical solution, during construction, cement tankers are used to supply materials. Fig. 9 As shown, an inclined discharge hopper 15 is arranged between the cement tank truck and the feed bin 10 of the scraper conveying assembly. Here, the inclined discharge hopper 15 serves as a slideway. The concrete slides down from the cement tank truck through the inclined discharge hopper 15 and finally falls into the feed bin 10 through the feeding port of the feed bin 10.

[0048] When the slipform machine of the utility model is working, the whole machine is controlled by the walking truss to move forward slowly and the speed is adjustable. The scraper conveying component controls the material conveying amount.

[0049] The tunnel invert slipform machine of the utility model can carry out integrated material distribution, paving, vibration and leveling construction on the tunnel invert, can realize intelligent control, has high working efficiency and high construction quality.

[0050] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new type of tunnel invert slipform machine, characterized by: The invention comprises a walking truss with adjustable construction height, a scraper conveying assembly for conveying materials horizontally, a buffer bin (2) for paving materials in a buffering manner, and a screed plate (3) for leveling concrete; the scraper conveying assembly is arranged at the lower end of the walking truss, the buffer bin (2) is arranged correspondingly below the scraper conveying assembly, and the screed plate (3) is arranged behind the buffer bin (2); and a high-frequency vibrating assembly for vibrating concrete materials in the buffer bin (2) is arranged on one side of the walking truss.

2. The novel tunnel invert slipform machine according to claim 1 is characterized in that: A vibrating moving track (4) is arranged on one side of the traveling truss, and the high-frequency vibrating assembly moves on the vibrating moving track (4).

3. The novel tunnel invert slipform machine according to claim 2 is characterized in that: The high-frequency vibrating assembly comprises a transverse moving trolley (5) and a plurality of high-frequency vibrating rods (6) arranged on the transverse moving trolley (5); the high-frequency vibrating rods (6) are mounted on the transverse moving trolley (5) via a lifting cylinder (7).

4. The novel tunnel invert slipform machine according to claim 3 is characterized in that: Two sets of vibrating moving tracks (4) are arranged opposite to each other, and the transverse moving trolley (5) is provided with two sets of hanging wheels (8) and is installed on the vibrating moving tracks (4) via the hanging wheels (8).

5. The novel tunnel invert slipform machine according to claim 1 is characterized by: The shape of the buffer chamber (2) is consistent with the cross-sectional shape of the tunnel paving surface; a plurality of partition plates (9) are arranged in the buffer chamber (2).

6. The novel tunnel invert slipform machine according to claim 5 is characterized in that: The scraper conveying assembly comprises a material conveying bin (10) and a scraper conveying mechanism for conveying materials from a feeding port; a plurality of material dropping openings (11) are arranged at intervals at the bottom of the material conveying bin (10); the opening and closing of the material dropping openings (11) are controlled by a cover plate (12).

7. The novel tunnel invert slipform machine according to claim 6 is characterized by: The scraper conveying mechanism comprises a conveying chain (13) and scrapers (14) fixedly arranged on the conveying chain (13) at intervals; the conveying chain (13) is driven by a sprocket driven by a motor to circulate and rotate; the feed bin (10) has a cross-sectional shape consistent with that of the tunnel paving surface.

8. The novel tunnel invert slipform machine according to claim 6 is characterized by: The feed bin (10) and the buffer bin (2) are both modular assembly structures; and a through hole is provided on the partition plate (9).

9. The novel tunnel invert slipform machine according to any one of claims 1 to 8, characterized in that: It also includes an inclined discharge hopper (15) for conveying materials from the cement tank truck to the feeding port of the scraper conveying assembly.

10. The novel tunnel invert slipform machine according to any one of claims 1 to 8, characterized in that: The walking truss comprises a walking frame (17) having an upper portion and a main truss (1) installed below the walking frame (17) via a height adjustment cylinder (18); a walking wheel (19) is arranged on the upper portion of the walking frame (17), and the walking wheel (19) moves on a trestle (16) of a tunnel.

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