Built-in air duct trolley and tunneling material transportation system comprising same

Abstract

The invention provides a built-in air duct trolley and a tunneling material transportation system comprising the same. The built-in air duct trolley comprises a trolley body which comprises an upper platform, a lower platform, a trolley left part and a trolley right part, and the trolley body is of a spliced cuboid frame structure; the air duct is arranged in the left part of the trolley and / or the right part of the trolley; and the moving assembly comprises a first traveling wheel and a second traveling wheel, is arranged at the lower part of the trolley body and is used for realizing the movement of the built-in air duct trolley. The air duct serves as a part of a trolley structure, the strength of the trolley structure can be improved, the space utilization rate of a trolley platform can be increased, auxiliary equipment is arranged more compactly, the overall length of a rear matched trolley system is shortened, meanwhile, the problem that the air duct collides with a supporting anchor rod head can be avoided, and the service life of the air duct is prolonged.

Description

Technical Field

[0001] This invention relates to a tunneling material transport system, and more specifically, to a tunneling material transport system including a built-in ventilation duct trolley. Background Technology

[0002] The rear support trolley of a tunnel boring machine (TBM) is used to house the auxiliary equipment required for the TBM's tunneling operations. In actual TBM construction, the space in the tunnel is extremely limited, while the number and types of auxiliary equipment that need to be housed on the rear support trolley are numerous and complex.

[0003] For traditional tunnel boring machines (TBMs), the tunnel ventilation ducts are typically mounted on the rear support trolley platform. This arrangement presents several problems: Firstly, the ventilation ducts occupy a significant amount of equipment space, forcing the rear support trolley to be lengthened to accommodate other equipment. This excessive length not only increases the construction site area but also hinders the operation and turning of the TBM within confined spaces. Secondly, the dense equipment on the rear support trolley platform restricts the placement of the ventilation ducts, resulting in their proximity to the tunnel walls. When the TBM makes turns during construction, the ventilation ducts are highly susceptible to collisions with the support anchor heads. Frequent collisions can cause wear and even damage to the duct surface. Once a duct is damaged, it must be replaced immediately to ensure adequate tunnel ventilation. This not only affects the normal construction schedule and increases costs but also wastes materials, negatively impacting the economy and efficiency of TBM construction. Summary of the Invention

[0004] In view of this, the present invention provides a tunneling material transport system including a built-in ventilation duct trolley, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] To achieve the aforementioned objective, a first aspect of the present invention provides a built-in air duct trolley, wherein the built-in air duct trolley comprises: The trolley body includes an upper platform, a lower platform, a left part of the trolley, and a right part of the trolley. The trolley body is a spliced ​​cuboid frame structure. A ventilation duct, wherein the ventilation duct is located inside the left side and / or the right side of the trolley; The moving component, including a first traveling wheel and a second traveling wheel, is located at the lower part of the trolley body and is used to realize the movement of the built-in air duct trolley.

[0006] As described above, the built-in air duct trolley may optionally have an upper platform, a lower platform, a left side of the trolley, and a right side of the trolley forming a cuboid frame structure; the lower platform is located directly below the upper platform, the lower platform and the upper platform have an internal hollow design, and the lower platform has a grid structure.

[0007] As described above, the built-in air duct trolley may optionally have an upper platform higher than the left and / or right side of the trolley.

[0008] As described above, the built-in air duct trolley may optionally have a walkway on the upper platform, the walkway including a toothed interlocking steel grating for anti-slip purposes.

[0009] As described above, the built-in air duct trolley may optionally have an air duct length slightly longer than the length of the left and / or right side of the trolley.

[0010] Optionally, the mobile component further includes: (The text abruptly ends here, so the translation stops as well.) A rotating shaft, which is connected to a bearing of the wheel assembly frame; A wheel assembly frame, which is connected to the traveling wheel and covers the traveling wheel; A connector, one end of which is connected to the hydraulic cylinder, and the other end of which is connected to the rotating shaft; The hydraulic cylinders are located on the outside of the left and right sides of the built-in air duct trolley.

[0011] As described above, the built-in air duct trolley may optionally include a first traveling wheel and a second traveling wheel. The first traveling wheel is located at the front of the built-in air duct trolley, and the second traveling wheel is located at the rear of the built-in air duct trolley. The first traveling wheel is capable of deflection.

[0012] As described above, the built-in air duct trolley may optionally include a sliding shoe disposed between the first traveling wheel and the second traveling wheel to support the tunnel wall and provide stable support for the built-in air duct trolley.

[0013] As described above, the built-in air duct trolley may optionally have a first lug plate installed at the front of the trolley body and a second lug plate installed at the rear of the trolley body. Different built-in air duct trolleys can be connected to form a built-in air duct trolley group through the first lug plate and the second lug plate.

[0014] To achieve the aforementioned objective, a second aspect of the present invention also provides a tunneling material transport system, wherein the tunneling material transport system is used in a full-face tunnel boring machine, and a built-in ventilation duct trolley as described in any one of the first aspects is installed behind the full-face tunnel boring machine.

[0015] As can be seen from the above technical solutions of the present invention, by setting a ventilation duct in the main structure of the trolley, the duct is incorporated as part of the trolley structure and bears part of the force, thereby enhancing the overall structural strength of the trolley. Furthermore, the duct runs through the trolley frame, and its internal space can also serve as a channel for auxiliary facilities such as cables and pipelines, which greatly improves the space utilization of the trolley platform and makes the arrangement of various auxiliary equipment more compact and orderly.

[0016] As can be seen from the optional technical solutions of the present invention, the ventilation duct is installed inside the trolley frame, which can also avoid the problem of collision between the ventilation duct and the support anchor head and extend the service life of the ventilation duct.

[0017] As can be seen from the optional technical solutions of the present invention, the tunneling material transportation system can continuously and efficiently discharge waste slag, reduce personnel entering dangerous areas, and reduce construction costs. Attached Figure Description

[0018] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings: Figure 1 A perspective structural schematic diagram of an embodiment of the built-in air duct trolley of the present invention is shown; Figure 2 It shows Figure 1 A front view of an embodiment of the built-in air duct trolley; and Figure 3 It shows Figure 1 Right view of an embodiment of the built-in air duct trolley.

[0019] Attached reference numerals: 1-Right side of the trolley; 2-Left side of the trolley; 3-Upper platform; 4-Lower platform; 5-Right air duct; 6-Left air duct; 7-Wheel assembly frame; 8-First ear plate; 9-Second ear plate; 10-First traveling wheel; 11-Second traveling wheel; 12-Toothed steel grating; 13-Slipper; 14-Hydraulic cylinder. Detailed Implementation

[0020] Referring to the accompanying drawings and specific embodiments, the structure, composition, features, and advantages of the built-in ventilation duct trolley and the tunneling material transport system including the trolley of the present invention will be described by way of example below. However, all descriptions should not be construed as limiting the present invention in any way.

[0021] Furthermore, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the various figures, the present invention still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacle, and thus these further embodiments according to the present invention should also be considered within the scope of this description.

[0022] It should also be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship of the pollution protection enclosure shown in the accompanying drawings. They are only for the convenience of describing this disclosure 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 disclosure.

[0023] 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 with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0024] Figure 1 A three-dimensional structural schematic diagram of one embodiment of the built-in air duct trolley of the present invention is shown.

[0025] Depend on Figure 1 As can be seen, the built-in air duct trolley of the present invention is mainly composed of a trolley body, which includes an upper platform 3, a lower platform 4, a left trolley part 2, and a right trolley part 1. These four structures are assembled together to form a stable cuboid frame structure. A hollow design is adopted between the upper platform 3 and the lower platform 4. This hollow design not only reduces the overall weight and improves mobility, but more importantly, it greatly facilitates the arrangement of internal components. Through this design, various lines, pipes, and other necessary mechanical or electronic components can be effectively planned and organized, making the entire trolley look neater and more orderly, while also facilitating maintenance and repair.

[0026] As can be seen from the figure, the upper surfaces of the left side 2 and the right side 1 of the trolley, as well as the upper platform 3, are all equipped with walkway plates. These walkway plates provide convenient passages for operators, ensuring the safety and convenience of moving between various parts of the built-in air duct trolley in this embodiment.

[0027] The upper platform 3 is equipped with toothed interlocking steel grating 12. The surface of the toothed interlocking steel grating 12 has an uneven, toothed structure, which greatly increases the friction between the walkway surface and the soles of shoes or wheels. Whether personnel are walking or small equipment is moving on the walkway, it can effectively prevent slipping or slipping, improving the safety of working on the trolley. Especially in some more complex working conditions, such as in the presence of oil, water stains, or dust, the anti-slip effect of the toothed interlocking steel grating is even more significant.

[0028] The lower platform of the trolley is designed with a grid structure, which allows for the efficient removal of some material and effectively reduces the overall weight of the trolley while ensuring its basic strength and load-bearing capacity. This helps reduce energy consumption during trolley operation, improves its maneuverability and flexibility, and also reduces pressure on the ground or track support structures.

[0029] The grid-like design allows air to circulate freely beneath the platform, facilitating ventilation and heat dissipation. For equipment or components that generate heat during operation, such as belt conveyors installed under the trolley, good ventilation can dissipate heat promptly, preventing overheating from degrading performance or shortening service life, thus improving the stability and reliability of equipment operation.

[0030] The openness of the grid structure makes the installation, commissioning, and maintenance of the equipment more convenient. Workers can more easily access the various components under the trolley to perform inspections, parts replacements, and other operations, improving work efficiency and reducing maintenance costs and downtime.

[0031] The left air duct 5 is located below the upper surface of the left side 2 of the trolley, while the right air duct 6 is installed below the upper surface of the right side 1 of the trolley. As can be seen from the figure, in the built-in air duct trolley of this embodiment, the left air duct 5 and the right air duct 6 adopt a circular steel pipe design.

[0032] This design is not only simple and robust, but also boasts excellent ventilation performance and airflow guidance capabilities. The circular steel tube shape allows for even stress distribution within the ventilation duct when subjected to airflow pressure, thereby improving its overall stability and service life. Furthermore, the smooth inner surface of the circular steel tube effectively reduces airflow resistance, ensuring the efficient operation of the ventilation system and providing continuous and stable ventilation support for the trolley's operating environment, thus guaranteeing the normal operation of the equipment and the safety and comfort of the operators.

[0033] In other embodiments, the shape of the ventilation duct can be flexibly adjusted according to specific design requirements and application scenarios. For example, the ventilation duct can be manufactured into a square structure by welding steel plates. This square ventilation duct has a regular geometric shape, which facilitates integration and connection with other equipment or structures, and also better adapts to specific spatial layout requirements. In addition to square ventilation ducts, other irregularly shaped ventilation ducts, such as elliptical, polygonal, or other irregular shapes, can be designed and manufactured according to actual needs. These irregularly shaped ventilation ducts can meet the ventilation needs in special situations, such as in environments with limited space or requiring special airflow distribution. Irregularly shaped ventilation ducts can optimize airflow guidance and distribution through their unique shape and structure, thereby achieving more efficient ventilation. In short, the design of the ventilation duct can be diversified according to different engineering requirements and usage environments to ensure that it can perform optimally under various conditions.

[0034] Figure 1 The mobile components of the built-in air duct trolley in this embodiment are also shown. The front of the trolley uses a first traveling wheel 10 and the rear uses a second traveling wheel 11. The direction of travel of the first traveling wheel 11 at the front of the trolley is not fixed, which is very important for the trolley to change its direction of travel in complex working environments, and can improve the trolley's mobility and ease of operation.

[0035] In this embodiment, the center of gravity of the built-in air duct trolley will change after loading goods or equipment.

[0036] The different front and rear travel wheels help the trolley maintain balance during operation. The first travel wheel 10 can maintain the dynamic balance of the trolley by flexibly adjusting during startup, acceleration, deceleration, and turning; the second travel wheel 11 is mainly responsible for providing stable support when the trolley is traveling in a straight line, reducing lateral swaying and ensuring the smoothness of the trolley's movement. This coordinated working method of the front and rear wheels can effectively improve the stability of the trolley under various working conditions and prevent accidents such as rollovers caused by shifting center of gravity or uneven road surfaces.

[0037] Figure 2 It shows Figure 1 A front view of an embodiment of the built-in air duct trolley, from Figure 2 It can be seen that the built-in air duct trolley of the present invention has a symmetrical structure, with the upper platform 3 being higher than the left part 2 and the right part 1 of the trolley, and the left part 2 and the right part 1 of the trolley being the same height. In this embodiment, the tunneling face is the area where the trolley directly operates during construction, and its shape is circular. By designing the upper platform 3 to be higher than the left and right sides, the trolley can be more stably supported on the circular working face during operation, making the force on the trolley on the circular working face more even, enhancing the overall stability of the trolley, reducing possible swaying or tilting during tunneling, and providing a more spacious and comfortable operating space for operators and equipment.

[0038] The left side (2) of the trolley is at the same height as the right side (1), creating a symmetrical and stable auxiliary working space. This design provides a neat and uniform platform for placing various auxiliary equipment, tools, and temporarily storing materials, facilitating symmetrical operations by operators on both sides and achieving efficient material handling and equipment maintenance. The equal height of the left and right platforms ensures more balanced force distribution on the trolley during operation, effectively reducing the risk of instability caused by a shift in the center of gravity.

[0039] In the built-in air duct trolley of this embodiment, the lower platform 4 is wider than the upper platform 3. The upper surfaces of the left side 2 and the right side 1 of the trolley extend inward to form additional support platforms. These extended platforms provide a wider support base for the upper platform 3, ensuring that the upper platform 3 remains stable when carrying equipment and materials. Steel plates are erected on these extended platforms as the main support structure. These steel plates are directly connected to the upper platform 3, bearing the weight of the upper platform 3 and evenly transferring it to the bottom structure.

[0040] To further maintain the overall balance and stability of the trolley, the extended platform bottom is supported by wedge-shaped steel plates. The inclined structure effectively distributes the load, evenly transferring the weight of the upper platform 3 to the lower platform, while reducing localized stress concentration. This wedge-shaped support structure not only enhances the stability of the trolley but also adapts to uneven construction surfaces, ensuring stable operation of the trolley in various complex environments.

[0041] from Figure 2 As can be seen from the diagram, in this embodiment, the left ventilation duct 6 and the right ventilation duct 5 are symmetrically arranged inside the left and right platforms. In actual construction, the choice of ventilation direction often needs to be determined based on specific construction requirements and site conditions.

[0042] If a particular side of the construction site requires focused ventilation, such as during tunnel excavation where one side of the working face needs more fresh air, construction workers can choose to use the ventilation duct on that side as the main ventilation channel. By adjusting the air volume and direction of the ventilation duct, they can ensure the ventilation effect in that area.

[0043] In some cases, both construction areas require good ventilation. In such cases, ventilation ducts on both sides can be used simultaneously to meet the ventilation needs of the entire construction area.

[0044] In addition to serving as a ventilation duct, the other side of the duct can also perform multiple functions as needed: During construction, the arrangement of hydraulic and electrical equipment pipelines is a crucial aspect. Due to the large internal space and relatively stable structure of the ventilation duct, the other side of the duct can serve as a conduit for pipeline installation. Placing pipelines inside the ventilation duct not only prevents them from being exposed and damaged, but also creates a neater construction site layout and reduces interference with construction personnel and equipment.

[0045] During construction, unforeseen circumstances may arise, such as malfunctions or the need for maintenance of the main ventilation duct. In such cases, the ventilation duct on the other side can serve as a backup ventilation duct, ensuring uninterrupted ventilation at the construction site and safeguarding the safety of construction personnel and the smooth progress of construction.

[0046] Figure 3It shows Figure 1 Right view of an embodiment of the built-in air duct trolley.

[0047] In this embodiment, a first ear plate 8 is installed at the front of the upper platform 3 of the built-in air duct trolley, and a second ear plate 9 is installed at the rear of the upper platform 3. Different built-in air duct trolleys are connected by the first ear plate 8 and the second ear plate 9 to form a built-in air duct trolley group. The right ventilation duct 5 is slightly longer than the right side of the trolley 1, ensuring that the ventilation range of the right ventilation duct 5 covers the entire area of ​​the right side of the trolley 1, and can even extend to the edge of the right side of the trolley 1 or slightly further away. This makes the ventilation effect more uniform, providing sufficient fresh air to all equipment and operating areas of the right side of the trolley 1, and reducing air stagnation in local areas.

[0048] During construction, especially in tunnel excavation or underground operations, the movement of equipment and personnel may lead to poor air circulation in localized areas. The extended design of the right ventilation duct 5 can effectively reduce ventilation dead zones and ensure air quality in the entire right-side area 1 of the trolley.

[0049] The built-in air duct trolley in this embodiment adopts a symmetrical structure, with the left air duct 6 and the right air duct 5 having the same length.

[0050] During construction, to ensure the flexibility and adaptability of the ventilation system, the air ducts between adjacent trolleys are connected by flexible air ducts. This flexible air duct design has good flexibility and adjustability, which can adapt to the movement and position changes of the trolleys during construction, while ensuring the continuity and stability of the ventilation system.

[0051] In this embodiment, the moving component is a key part of the built-in air duct trolley, from... Figure 3 As can be seen from the image, the front of the built-in air duct trolley in this embodiment uses a first traveling wheel 10.

[0052] The rotating shaft is a crucial component connecting the traveling wheels and the trolley body. It connects to the wheel assembly frame 7 via bearings, ensuring the traveling wheels can rotate smoothly and flexibly.

[0053] The wheel assembly frame 7 is the intermediate component connecting the traveling wheels and the rotating shaft. Its main function is to fix the traveling wheels onto the rotating shaft and achieve relative movement through bearings. The wheel assembly frame 7 encloses the traveling wheels, protecting them from external impurities and dust, and enhancing the structural stability of the entire moving assembly. Furthermore, the wheel assembly frame design optimizes airflow, reduces wind resistance, and improves the trolley's moving efficiency.

[0054] The connector is an important component in the moving assembly. One end is connected to the hydraulic cylinder 14, and the other end is connected to the rotating shaft. The function of the connector is to transmit the power of the hydraulic cylinder 14 to the rotating shaft, thereby enabling the first traveling wheel 10 to steer.

[0055] The hydraulic cylinders 14 are located on the exterior of the left and right sides of the built-in air duct trolley. Powered by a hydraulic system, the hydraulic cylinders 14 drive the connecting parts and rotating shaft, thereby steering the first traveling wheels 10. Furthermore, the external location of the hydraulic cylinders 14 facilitates maintenance and repair, while also preventing interference from other components inside the trolley.

[0056] With precise control of the hydraulic cylinder 14, the trolley can achieve flexible steering and adapt to complex construction environments. The design of the wheel frame 7 and the rotating shaft ensures the smooth rotation of the traveling wheels, improving the stability of the trolley during movement. The rational design of the connecting parts and the hydraulic cylinder 14 ensures efficient power transmission, improving the trolley's movement efficiency. The external arrangement of the hydraulic cylinder and connecting parts facilitates maintenance and repair by construction personnel, reducing equipment downtime.

[0057] In summary, the design of the mobile components fully considers the complexity of the construction environment and the usage requirements of the trolley. Through reasonable layout and optimized design, the efficient and stable operation of the trolley with built-in air ducts is ensured during the construction process.

[0058] In this embodiment, between the first traveling wheel 10 and the second traveling wheel 11 on both sides of the built-in ventilation duct trolley, a sliding shoe 13 is installed. The sliding shoe 13 has a flat trapezoidal structure and contacts the tunnel wall during the excavation process, bracing the tunnel wall and providing stable support for the built-in ventilation duct trolley.

[0059] The built-in ventilation duct trolley of this invention incorporates the ventilation duct as part of the trolley structure. Its robust materials and stable structure provide additional support for the overall trolley. The ventilation duct is typically made of steel plate, which not only withstands the pressure of the internal airflow but also enhances the rigidity and stability of the trolley to a certain extent. By tightly connecting the ventilation duct to the main structure of the trolley, the ventilation duct can effectively distribute various forces experienced by the trolley during construction, reducing localized stress concentration and thus improving the overall structural strength of the trolley.

[0060] In some embodiments, the built-in air duct trolley can fully utilize the space inside the trolley, avoiding the problem of the air duct occupying external space. This design makes the spatial layout on the trolley platform more reasonable, providing more space for auxiliary equipment and thus improving space utilization.

[0061] In some embodiments, the built-in ventilation duct trolley can effectively shorten the overall length of the trolley system. This design not only reduces the footprint of the trolley during construction but also improves its flexibility and maneuverability in confined construction environments. Integrating the ventilation duct into the trolley body structure and employing a symmetrical design effectively avoids collisions between the ventilation duct and the support anchor heads. This design reduces the risk of damage to the ventilation duct and displacement of the support anchor heads due to collisions, improving the safety and reliability of construction.

[0062] Because the ventilation duct is integrated into the trolley's main structure and protected by the trolley, its exposure to the external environment is reduced. This design not only reduces the probability of damage to the ventilation duct but also extends its service life and lowers the maintenance and replacement costs of the equipment.

[0063] The technical scope of this invention is not limited to the contents of the above specification. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the scope of this invention.

Claims

1. A trolley with a built-in air duct, characterized in that, The built-in air duct trolley includes: The trolley body includes an upper platform (3), a lower platform (4), a left part of the trolley (2) and a right part of the trolley (1). The trolley body is a spliced ​​cuboid frame structure. The ventilation duct is located inside the left (2) and / or right (1) part of the trolley; The moving component, including a first traveling wheel (10) and a second traveling wheel (11), is located at the lower part of the trolley body and is used to realize the movement of the built-in air duct trolley.

2. The built-in air duct trolley as described in claim 1, characterized in that, The upper platform (3), the lower platform (4), the left part of the trolley (2), and the right part of the trolley (1) form a cuboid frame structure; the lower platform (4) is located directly below the upper platform (3), the lower platform (4) and the upper platform (3) are designed with an internal hollow structure, and the lower platform (4) is a grid structure.

3. The built-in air duct trolley as described in claim 1, characterized in that, The upper platform (3) is higher than the left side (2) and / or the right side (1) of the trolley.

4. The built-in air duct trolley as described in claim 1, characterized in that, The upper platform (3) is provided with a walkway plate, which includes a toothed steel grating plate (12) for anti-slip.

5. The built-in air duct trolley as described in claim 1, characterized in that, The length of the air duct is slightly longer than the length of the left (2) and / or right (1) of the trolley.

6. The built-in air duct trolley as described in claim 1, characterized in that, The moving component also includes: A rotating shaft is connected to a bearing of the wheel assembly frame (7); Wheel frame (7), the wheel frame (7) is connected to the walking wheel; A connector, one end of which is connected to the hydraulic cylinder (14), and the other end of which is connected to the rotating shaft; The oil cylinder (14) is located on the outside of the left and right sides of the built-in air duct trolley.

7. The built-in air duct trolley as described in claim 1, characterized in that, The traveling wheels include a first traveling wheel (10) and a second traveling wheel (11). The first traveling wheel (10) is located at the front of the built-in air duct trolley, and the second traveling wheel (11) is located at the rear of the built-in air duct trolley. The first traveling wheel (10) is capable of deflection.

8. The built-in air duct trolley as described in claim 1, characterized in that, The moving component also includes a sliding shoe (13), which is located between the first traveling wheel (10) and the second traveling wheel (11) to support the tunnel wall and provide stable support for the built-in air duct trolley.

9. The built-in air duct trolley as described in claim 1, characterized in that, The trolley body is equipped with a first ear plate (8) at the front and a second ear plate (9) at the rear. Different trolleys with built-in air ducts can be connected to form a trolley group with built-in air ducts through the first ear plate (8) and the second ear plate (9).

10. A tunneling material transport system, characterized in that, The tunneling material transport system is used in a full-face tunnel boring machine, and a built-in ventilation duct trolley as described in any one of claims 1 to 9 is installed behind the full-face tunnel boring machine.

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