A multi-stage feeding shuttle feeder

Abstract

The utility model discloses a multistage feeding shuttle type cloth machine, including unloading system, multistage feeding system and cloth system. The unloading hopper of unloading system is used for the temporary storage concrete, and the multistage feeding system is composed of at least two levels of the first and last joint belt conveyor, realizes the long distance transfer of material, and the column top of cloth system is equipped with the rotary platform, and the basic truss is installed on the platform and can rotate, and the telescopic truss telescopic movement on the basic truss through sliding drive mechanism, and the belt conveying system discharge end on it is equipped with the slide pipe. The present application is through the modular design, makes the column height adjustable, and the cloth system combines the rotation and telescopic function, has realized the cloth range's substantial extension and stepless regulation. Multistage feeding system adapts to complex terrain, and the equipment is also equipped with maintenance passageway, material blocking cover, sweeper and other optimization details, and the whole has the cloth efficiency high, the covering range is wide, the adaptability is strong, and the reliability is good and the like.

Description

Technical Field

[0001] This utility model relates to the field of fabric feeding machine technology, specifically to a multi-stage feeding shuttle fabric feeding machine. Background Technology

[0002] Concrete shuttle placing booms are key equipment used in water conservancy and hydropower projects, pumped storage power stations, and large-scale water conservancy projects for large-volume concrete construction. They use belt conveyors for point-to-point concrete pouring, offering advantages such as high efficiency and continuity compared to traditional methods like suspended concrete pouring. They can also be integrated with other construction equipment to form a complete concrete delivery system. This type of equipment is crucial for adapting to complex terrain and ensuring construction quality and schedule.

[0003] However, as my country's water conservancy and hydropower projects shift their focus to complex geological areas such as the southwest, traditional concrete placing booms have revealed numerous limitations in their application. Existing equipment is typically designed for large-scale concrete pouring, resulting in bulky and cumbersome structures, leading to excessively long on-site installation and commissioning cycles and insufficient flexibility. They are mostly suitable for ultra-large projects with a total concrete demand exceeding several million cubic meters, but their economic efficiency and applicability are poor for medium-sized projects or projects with narrow construction sites and variable layouts. Furthermore, traditional placing booms often lack effective adjustment capabilities, with relatively fixed placing radii and coverage areas, making it difficult to efficiently handle construction requirements with large pouring spans and frequent changes in pouring layer thickness. Their supply systems are also relatively simple, making it difficult to achieve long-distance, multi-stage, precise transfer of concrete from ground delivery points to high-altitude pouring points. These inherent shortcomings limit the widespread application of this technology under modern, efficient, and flexible construction requirements. Therefore, a new, more adaptable concrete shuttle placing solution is urgently needed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a multi-stage feeding shuttle cloth feeder, including:

[0005] A discharge system, including a discharge hopper, for receiving and temporarily storing concrete materials;

[0006] A multi-stage feeding system includes at least two belt conveyors connected end to end for transferring concrete materials in the unloading system in multiple stages; the feed end of the first-stage belt conveyor in the multi-stage feeding system is located below the discharge port of the unloading hopper in the unloading system.

[0007] A concrete placement system, located at the discharge end of the final-stage belt conveyor of the multi-stage feeding system, is used to receive concrete and place it over a large area. The concrete placement system includes columns, a rotating platform, a basic truss, and a telescopic truss. The lower end of the column is cast in concrete, and the rotating platform is located on its top. The basic truss is installed on a connecting column above the rotating platform and can be driven to rotate horizontally. The telescopic truss is slidably mounted on the basic truss via a sliding drive mechanism to extend and retract relative to it. A belt conveyor system is installed on the telescopic truss, and a chute is located below its discharge end.

[0008] Preferably, the sliding drive mechanism includes a drive motor mounted on the basic truss, a sprocket and chain assembly driven by the drive motor, and a guide roller assembly disposed between the basic truss and the telescopic truss. The guide roller assembly cooperates with the guide rail on the telescopic truss, so that the sprocket and chain assembly can drive the telescopic truss to slide back and forth along the basic truss.

[0009] Preferably, the concrete distribution system further includes a receiving hopper, which is disposed at the feed end of the telescopic truss and installed on the connecting column, for receiving concrete material from the final-stage belt conveyor and guiding it to the belt conveyor system.

[0010] Preferably, the belt conveyor system includes a drive roller, a driven roller, a lower idler roller, an upper idler roller, a tensioning device, and a belt wrapped around it; the drive roller and the driven roller are respectively disposed at both ends of the telescopic truss; the tensioning device is connected to the driven roller and is used to adjust the tension of the belt.

[0011] Preferably, the tensioning device includes a sliding seat slidably disposed on the telescopic truss and an adjusting screw, and the driven roller is mounted on the sliding seat; the adjusting screw is threadedly connected to the telescopic truss and rotatably connected to the sliding seat, and the sliding seat is moved by rotating the adjusting screw to adjust the center distance between the driving roller and the driven roller.

[0012] Preferably, at least one end of the telescopic truss is provided with a gap cleaner and a scraper, the gap cleaner being used to clean residual material on the non-working surface of the belt, and the scraper being used to clean residual material on the working surface of the belt.

[0013] Preferably, a baffle is provided above the chute to prevent concrete material from splashing.

[0014] Preferably, it also includes a maintenance channel, which is provided on the connecting column for equipment maintenance.

[0015] The multi-stage feeding shuttle fabric distributor provided in this application has significant advantages and advancements compared to existing technologies.

[0016] First, this invention overcomes the shortcomings of traditional equipment being bulky and rigid through a highly modular design. The columns use a combination of standard and non-standard sections, secured with bolts, allowing the equipment height to be flexibly adjusted according to construction needs, significantly shortening installation and dismantling time. The concrete placing system employs a composite structure of a basic truss and a telescopic truss. The telescopic truss can slide precisely within the basic truss, and combined with the horizontal rotation function of the rotary platform, it achieves a wide range of stepless adjustment of the concrete placing radius and angle, greatly expanding the concrete placing coverage area of ​​a single unit and easily handling complex and varied pouring surfaces.

[0017] Secondly, the innovative multi-stage feeding system of this application ensures efficient and reliable material conveying. The system consists of at least two interconnected belt conveyors, whose inclination angle and length can be designed according to the site terrain to achieve seamless long-distance transfer of concrete in both horizontal and inclined directions. Maintenance access is provided on both sides of the belt conveyor truss, improving the safety and maintainability of the equipment. This design makes the equipment suitable not only for open sites such as dams and water intakes, but also, with the addition of a simple unloading hopper, for flexible application in confined environments such as underground power plants.

[0018] Finally, this application features comprehensive optimizations in functional details. For example, scrapers and empty section cleaners are installed at both ends of the telescopic truss to effectively remove residual concrete from the conveyor belt, ensuring clean operation and transmission efficiency; a baffle is installed above the chute to prevent material splashing; and the tensioning device allows for convenient adjustment of the belt tension, ensuring smooth transmission. These designs work together to make this invention superior to existing technologies in terms of construction efficiency, adaptability, reliability, and automation, providing a better concrete placement solution for modern water conservancy and hydropower projects. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a multi-stage feeding shuttle fabric distribution machine according to this application;

[0020] Figure 2 This is a schematic diagram of the fabric system in this application;

[0021] As shown in the figure: A. Unloading system, B. Multi-stage feeding system, C. Fabric distribution system;

[0022] 1. Column, 2. Connecting column, 3. Left door, 4. Drive roller, 5. Receiving hopper, 6. Sliding drive mechanism, 7. Basic truss, 8. Telescopic truss, 9. Lower idler roller, 10. Upper idler roller, 11. Belt, 12. Scraper, 13. Driven roller, 14. Empty section cleaner, 15. Chute, 16. Material stop cover. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0025] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0026] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] Reference Appendix Figure 1 - Appendix Figure 2 A multi-stage feeding shuttle concrete placing machine comprises three main parts: an unloading system A, a multi-stage feeding system B, and a placing system C. This system is specifically designed for large-volume concrete construction in water conservancy and hydropower projects, and can adapt to different scenarios such as open fields and underground power plants, achieving efficient and flexible concrete placing.

[0028] The unloading system A includes an unloading hopper for receiving and temporarily storing concrete materials from dump trucks or concrete mixer trucks. This unloading hopper can be customized according to actual application scenarios and customer needs; for example, in open areas such as dams and water intakes, a hopper with a capacity of 12m³ is used. 3 It is equipped with a hydraulic unloading hopper with a hydraulic arc gate to control the unloading speed, in conjunction with dump trucks for loading; while in enclosed spaces such as underground plants, a simpler unloading hopper can be used in conjunction with concrete mixer trucks for loading. When using dump trucks for loading, the width of the hopper needs to be specially designed to ensure that it is wider than the width of the dump truck to ensure smooth material receiving.

[0029] The multi-stage material supply system B includes at least two stages of belt conveyors connected end-to-end by pins, used for multi-stage, long-distance transfer of concrete materials from the unloading system A. The length of a single belt conveyor is typically between 20 and 50 meters. Its main truss structure is constructed from welded channel steel, and the layout is designed according to the horizontal and vertical distances of material transport. The inclination angle can vary between -15° and +20° to adapt to complex construction terrain. The feed end of the first-stage belt conveyor in the multi-stage material supply system B is precisely positioned below the discharge port of the unloading hopper in the unloading system A to ensure uninterrupted material transport. When the material distribution line is too long, a belt tensioning device is installed in the system to ensure smooth and effective transmission.

[0030] The fabric distribution system C, located at the discharge end of the final belt conveyor of the multi-stage feeding system B, is the core actuator for completing large-scale, precise fabric distribution operations.

[0031] The concrete placement system C includes columns 1, a rotating platform 3, a basic truss 7, and a telescopic truss 8. The columns 1 are composed of multiple standard and non-standard sections, each 3-6 meters in length, bolted together. Their lower ends are directly cast into concrete as permanent supports and are not removed. The installation height of the entire concrete placement system C can be flexibly adjusted by adding or removing standard and non-standard sections. The rotating platform 3 is located at the top of the columns 1. The basic truss 7 is installed above the rotating platform 3 via connecting columns 2 and can be driven by a rotating device to rotate 360° horizontally, thus greatly expanding the concrete placement coverage area. The telescopic truss 8 is slidably installed inside the basic truss 7 via a precision sliding drive mechanism 6, enabling reciprocating telescopic movement relative to the basic truss 7, thereby flexibly changing the concrete placement radius. A complete belt conveyor system is installed on the telescopic truss 8, with a chute 15 located below its discharge end through which concrete is finally poured.

[0032] In one embodiment of this application, the sliding drive mechanism 6 includes a drive motor mounted on the basic truss 7, a sprocket and chain assembly driven by the drive motor, and a guide roller assembly disposed between the basic truss 7 and the telescopic truss 8. Specifically, four sets of sliding rollers are disposed inside the basic truss 7, and these rollers precisely engage with the V-shaped guide rails on the telescopic truss 8, forming the guide roller assembly. By driving the sprocket and chain assembly with the motor, the telescopic truss 8 can be driven to slide smoothly and precisely back and forth along the V-shaped guide rails within the basic truss 7, achieving stepless change of the fabric radius.

[0033] In one embodiment of this application, the concrete distribution system C further includes a receiving hopper 5. The receiving hopper 5 is located at the feed end of the telescopic truss 8 and is fixedly installed on the connecting column 2. Its main function is to reliably receive the concrete material transported from the final-stage belt conveyor and smoothly guide it to the belt conveyor system of the telescopic truss 8 itself, ensuring continuous and spill-free material transfer.

[0034] In one embodiment of this application, the belt conveyor system is crucial for material transfer via the fabric arm. It includes a drive roller 4, a driven roller 13, a lower idler roller 9, an upper idler roller 10, a tensioning device, and a belt 11 wrapped around it. The drive roller 4, serving as the power source, is typically an externally mounted electric roller (such as the YTHZ type) responsible for providing power to the belt. The driven roller 13 acts as a deflector. The lower idler roller 9 and the upper idler roller 10 together support the belt 11, forming a complete conveying loop. The drive roller 4 and the driven roller 13 are respectively located at both ends of the telescopic truss 8. The tensioning device is connected to the driven roller 13 and is used to dynamically adjust the tension of the belt 11, ensuring the effectiveness and smoothness of the transmission.

[0035] In one embodiment of this application, the tensioning device employs a screw tensioning method. It includes a sliding seat slidably mounted on the telescopic truss 8, on which the driven roller 13 is mounted. An adjusting screw is also provided, which is threadedly connected to the frame of the telescopic truss 8, and its end is rotatably connected to the sliding seat. When it is necessary to tension or loosen the belt, rotating the adjusting screw drives the sliding seat and the driven roller 13 to move back and forth together, thereby precisely adjusting the center distance between the driving roller 4 and the driven roller 13, and thus adjusting the belt tension.

[0036] In one embodiment of this application, at least one end of the telescopic truss 8 (typically the discharge end and / or the feed end) is provided with important cleaning components, including an empty section cleaner 14 and a scraper 12. The empty section cleaner 14 is used to promptly clean residual material adhering to the non-working surface (inner ring) of the belt, preventing material accumulation and damage to the rollers. The scraper 12 is installed on the running path of the working surface (outer ring) of the belt, used to scrape off concrete still adhering to the belt after unloading, keeping the belt clean and avoiding material backflow and waste. In one embodiment of this application, a baffle 16 is provided above the chute 15 to prevent concrete material from splashing.

[0037] In one embodiment of this application, a baffle 16 is provided above the chute 15. The function of the baffle 16 is to prevent concrete material from splashing when it is thrown out from the conveyor belt discharge end, thereby reducing material loss and environmental pollution, and improving construction safety and civility.

[0038] In one embodiment of this application, a maintenance channel 17 is also included. The maintenance channel 17 is disposed on the connecting column 2, providing operators with a safe and convenient maintenance platform, facilitating daily inspection, maintenance and upkeep of high-level components such as the rotary device and receiving hopper, and ensuring the long-term stable operation of the equipment.

[0039] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A multi-stage feeding shuttle fabric distribution machine, characterized in that, include: A discharge system (A) includes a discharge hopper for receiving and temporarily storing concrete materials; A multi-stage feeding system (B) includes at least two belt conveyors connected end to end for multi-stage transfer of concrete materials in the unloading system (A); the feed end of the first-stage belt conveyor in the multi-stage feeding system (B) is located below the discharge port of the unloading hopper in the unloading system (A). A concrete placement system (C) is installed at the discharge end of the final belt conveyor of the multi-stage feeding system (B) for receiving concrete and placing it over a wide area. The concrete placement system (C) includes a column (1), a rotating platform (3), a basic truss (7), and a telescopic truss (8). The lower end of the column (1) is cast in concrete, and the rotating platform (3) is installed on its top. The basic truss (7) is installed on a connecting column (2) above the rotating platform (3) and can be driven to rotate horizontally. The telescopic truss (8) is slidably installed on the basic truss (7) through a sliding drive mechanism (6) to move telescopically relative to it. The telescopic truss (8) is equipped with a belt conveyor system, and a chute (15) is provided below its discharge end.

2. The multi-stage feeding shuttle fabric distributor according to claim 1, characterized in that, The sliding drive mechanism (6) includes a drive motor mounted on the basic truss (7), a sprocket and chain assembly driven by the drive motor, and a guide roller assembly mounted between the basic truss (7) and the telescopic truss (8). The guide roller assembly cooperates with the guide rail on the telescopic truss (8) so that the sprocket and chain assembly can drive the telescopic truss (8) to slide back and forth along the basic truss (7).

3. The multi-stage feeding shuttle fabric distributor according to claim 1, characterized in that, The material distribution system (C) also includes a receiving hopper (5), which is located at the feed end of the telescopic truss (8) and installed on the connecting column (2) to receive concrete material from the final stage belt conveyor and guide it to the belt conveyor system.

4. The multi-stage feeding shuttle fabric distributor according to claim 1, characterized in that, The belt conveyor system includes a drive roller (4), a driven roller (13), a lower idler (9), an upper idler (10), a tensioning device, and a belt (11) wrapped around it; the drive roller (4) and the driven roller (13) are respectively located at both ends of the telescopic truss (8); the tensioning device is connected to the driven roller (13) and is used to adjust the tension of the belt (11).

5. The multi-stage feeding shuttle fabric distributor according to claim 4, characterized in that, The tensioning device includes a sliding seat slidably disposed on the telescopic truss (8) and an adjusting screw, and the driven roller (13) is mounted on the sliding seat; the adjusting screw is threadedly connected to the telescopic truss (8) and rotatably connected to the sliding seat, and the sliding seat is driven to move by rotating the adjusting screw to adjust the center distance between the driving roller (4) and the driven roller (13).

6. The multi-stage feeding shuttle fabric distributor according to claim 1, characterized in that, At least one end of the telescopic truss (8) is provided with a gap cleaner (14) and a scraper (12). The gap cleaner (14) is used to clean the residual material on the non-working surface of the belt, and the scraper (12) is used to clean the residual material on the working surface of the belt (11).

7. The multi-stage feeding shuttle fabric distributor according to claim 1, characterized in that, A baffle (16) is provided above the chute (15) to prevent concrete material from splashing.

8. The multi-stage feeding shuttle fabric distributor according to claim 1, characterized in that, It also includes a maintenance channel (17), which is set on the connecting column (2) for equipment maintenance.

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