A self-propelled tunneling vehicle

Abstract

This utility model discloses a self-propelled tunnel working vehicle, including a vehicle body, a self-propelled mechanism, and a working platform mounted on the self-propelled mechanism. The vehicle body has a loading platform, and the loading platform has a transfer mechanism to transfer the self-propelled mechanism to the tunnel face. The self-propelled mechanism and the transfer mechanism are detachably connected. This utility model has a compact structure when folded, allowing for flexible relocation within tunnels, high mobility, and compliance with road traffic standards, enabling relocation between different tunnels. The loading platform integrates the transfer mechanism, the self-propelled mechanism, and the working platform. The transfer mechanism transfers the self-propelled mechanism to the tunnel face, and then disconnects the connection between the self-propelled mechanism and the transfer mechanism. The self-propelled mechanism then moves the working platform onto the tunnel face, allowing workers to complete tunnel face construction such as blast hole loading without the need for manual erection and dismantling of scaffolding platforms, making it convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel face construction equipment, and in particular to a self-propelled tunnel working vehicle. Background Technology

[0002] Traditional tunnel face construction relies on manual labor. Workers must perform long hours of strenuous physical labor at the narrow, high-altitude, damp, and poorly lit tunnel face, carrying heavy medical cartridges, using makeshift scaffolding or aerial work platforms. This work method has significant drawbacks: Extremely high safety risks: Personnel are exposed to the unsupported open space and face direct risks such as falling rocks, collapses, and falls from heights.

[0003] Low operational efficiency: Manual loading is slow, and the loading density and coupling degree are difficult to control precisely, resulting in unstable blasting effects, easy over-excavation and under-excavation, affecting the tunnel outline quality and subsequent support costs.

[0004] High labor intensity and harsh environment: After blasting, the dust and smoke concentration near the working face is high, the visibility is poor, and the noise is loud, which seriously damages the health of workers.

[0005] To address the aforementioned issues, the mechanization and automation of tunnel construction have become a clear development direction. Significant progress has been made both domestically and internationally in areas such as rock drilling rigs, shotcrete robots, and arch frame installation machines. However, the development of specialized automated equipment for the critical and high-risk process of explosive loading at the tunnel face remains relatively lagging, and the market lacks mature, reliable, and widely adaptable products.

[0006] Recently, some domestically produced mechanized equipment for tunnel face explosive loading operations has provided valuable solutions, aiming to offer a safe, reliable, and rapidly deployable and retractable working platform for personnel. This signifies that the field is actively exploring ways to reduce manual labor intensity, increase efficiency, and improve safety. However, existing technologies still need further refinement and integration to cope with the complex and ever-changing tunnel construction environment. In particular, there is a need to develop a tunnel face construction work trolley that can simultaneously adapt to both full-face single-stage excavation and micro-step staged excavation methods. This equipment needs to address the following key technology integration issues: Multi-condition adaptability: It needs to have a flexible boom and working platform to adapt to rapid positioning and stable operation in a wide full-section area as well as in the limited micro-step upper and lower spaces.

[0007] Collaborative operation: The work platform can adapt to different tunnel cross sections, and its width can be changed according to the changes in the tunnel cross section and the needs of construction personnel.

[0008] Safety and efficiency: The work trolley should provide a safe and reliable working environment for construction personnel, while also enabling rapid and convenient transfer, deployment, and retrieval within the tunnel.

[0009] Human-machine friendly and intelligent control: Equipped with an ergonomic control system and a good working environment, reducing the difficulty and fatigue of operation, and reserving data interfaces to support digital construction management.

[0010] Therefore, developing a new type of integrated, intelligent, and highly adaptable tunnel face operation trolley is not only an urgent need to overcome existing construction pain points and ensure personnel safety, but also a key link in promoting the upgrade of tunnel drilling and blasting construction to "less manpower, intelligent, and standardized" methods, achieving cost reduction, efficiency improvement, and technological progress in the industry. Utility Model Content

[0011] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a self-propelled tunnel working vehicle that is easy to use, efficient, and suitable for working conditions with steps at the tunnel face.

[0012] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A self-propelled tunnel working vehicle includes a vehicle body, a self-propelled mechanism, and a working platform mounted on the self-propelled mechanism. The vehicle body is equipped with a loading platform, and the loading platform is equipped with a transfer mechanism to transfer the self-propelled mechanism to the tunnel steps. The self-propelled mechanism and the transfer mechanism are detachably connected.

[0013] As a further improvement to the above technical solution: the transfer mechanism includes a swing bracket and a lifting mechanism disposed on the swing bracket. The swing bracket is hinged to the loading platform. The loading platform is provided with a swing drive component for driving the swing bracket to swing up and down. The self-propelled mechanism is detachably connected to the lifting mechanism.

[0014] As a further improvement to the above technical solution: the lifting mechanism includes two parallel and equal-length connecting rods and a connecting rod drive for driving the connecting rods to swing up and down. One end of the connecting rod is hinged to the swing bracket, and the other end is hinged to the self-propelled mechanism.

[0015] As a further improvement to the above technical solution: the connecting rod includes two connecting rod parts and a connector for connecting the two connecting rod parts, and the two connecting rod parts are located on both sides of the swing bracket.

[0016] As a further improvement to the above technical solution: the connecting rod drive is a telescopic structure, one end of the connecting rod drive is hinged to the swing bracket, and the other end is hinged to the connecting member of one of the connecting rods.

[0017] As a further improvement to the above technical solution: the self-propelled mechanism is provided with a lifting guide rail, the lifting guide rail is provided with a lifting seat, and the working platform is located on the lifting seat.

[0018] As a further improvement to the above technical solution: the lifting seat is provided with a rotating platform and a rotating drive component for driving the rotating platform to rotate, and the working platform is located on the rotating platform.

[0019] As a further improvement to the above technical solution: the rotating platform is hinged to the lifting seat, the rotating drive component is a telescopic structure, one end of the rotating drive component is hinged to the rotating platform, and the other end is hinged to the lifting seat.

[0020] As a further improvement to the above technical solution: the working platform includes a first working platform and a second working platform, and the distance between the first working platform and the second working platform is adjustable.

[0021] As a further improvement to the above technical solution: the working platform includes a platform body and a retractable platform located at at least one end of the platform body.

[0022] Compared with existing technologies, the advantages of this utility model are as follows: The self-propelled tunnel working vehicle disclosed in this utility model has a compact structure when folded, can be flexibly transferred within tunnels, has strong mobility, and meets road driving standards, allowing it to be transferred between different tunnels. The loading platform integrates a transfer mechanism, a self-propelled mechanism, and a working platform. The transfer mechanism transports the self-propelled mechanism to the steps of the tunnel face, and then disconnects the connection between the self-propelled mechanism and the transfer mechanism. The self-propelled mechanism then drives the working platform to move and position itself on the steps. Workers can use the working platform to complete tunnel face construction such as loading explosives into blast holes, without the need for manual erection and dismantling of scaffolding platforms, making it convenient and efficient to use.

[0023] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the self-propelled tunnel working vehicle of this utility model in its retracted state.

[0025] Figure 2 This is a side view of the self-propelled tunnel working vehicle of this utility model in its retracted state.

[0026] Figure 3 This is a three-dimensional structural diagram of the self-propelled mechanism in the lifting state of this utility model.

[0027] Figure 4 This is a side view of the self-propelled mechanism in this utility model transferring to the steps.

[0028] Figure 5 This is a three-dimensional structural diagram of the self-propelled mechanism and the transfer mechanism of this utility model being disconnected.

[0029] Figure 6 This is a three-dimensional structural diagram of the present invention used for loading explosives in the lower layer of the working face.

[0030] Figure 7 This is a three-dimensional structural diagram of the present invention used for loading explosives on the upper surface of the working face.

[0031] Figure 8 This is a three-dimensional structural diagram of the rotating platform in this utility model.

[0032] Figure 9 This is a three-dimensional structural diagram of the working platform in this utility model.

[0033] The labels in the diagram represent: 1. Vehicle body; 11. Loading platform; 12. Swing drive component; 13. Telescopic beam; 14. Telescopic outriggers; 15. Cab; 2. Swing bracket; 3. Working platform; 31. First working platform; 32. Second working platform; 33. Platform body; 34. Telescopic platform; 4. Self-propelled mechanism; 41. Lifting guide rail; 42. Lifting drive assembly; 43. Lifting seat; 431. First limiting part; 432. Second limiting part; 44. Rotating platform; 441. Swing arm; 442. Adjustment drive component; 443. Adjustment guide rail; 45. Rotation drive component; 5. Lifting mechanism; 51. Linkage; 511. Linkage split; 512. Connector; 52. Linkage drive component. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 9 As shown, the self-propelled tunnel boring machine of this embodiment includes a vehicle body 1, a self-propelled mechanism 4 (e.g., self-propelled by tracks, rollers, or rails), and a working platform 3 mounted on the self-propelled mechanism 4. The vehicle body 1 is equipped with a loading platform 11, and the loading platform 11 is equipped with a transfer mechanism to transfer the self-propelled mechanism 4 to the tunnel steps. The self-propelled mechanism 4 and the transfer mechanism are detachably connected (e.g., detachably connected by bolts, pins, etc.). See details. Figure 2 Preferably, a driver's cab 15 is located at the front end of the vehicle body 1, and a loading platform 11 is located at the rear end of the vehicle body 1. Further details can be found in the following description. Figure 1 The vehicle body 1 is equipped with telescopic beams 13 that can extend and retract along the width direction on both the left and right sides. The telescopic beams 13 are equipped with telescopic outriggers 14 that can extend and retract along the vertical direction. Before the self-propelled tunnel working vehicle enters the working state, the telescopic beams 13 drive the telescopic outriggers 14 to extend to the left and right sides. Then, the telescopic outriggers 14 extend downward to contact the bottom of the tunnel, keeping the vehicle body 1 in a horizontal state and providing stable support for the vehicle body 1 to prevent overturning.

[0039] The self-propelled tunnel boring machine of this embodiment has a compact structure when folded, allowing for flexible relocation within tunnels. It is highly mobile and meets road traffic standards, enabling it to move between different tunnels. Specifically, as shown below... Figure 1 and Figure 2 As shown. The loading platform 11 integrates a transfer mechanism, a self-propelled mechanism 4, and a working platform 3. The transfer mechanism transports the self-propelled mechanism 4 to the steps of the tunnel face. Then, the connection between the self-propelled mechanism 4 and the transfer mechanism is disconnected. The self-propelled mechanism 4 then moves the working platform 3 to its position on the steps. Workers can use the working platform 3 to complete tunnel face construction such as loading explosives into blast holes. Specifically, as shown... Figures 5 to 7 As shown, no manual erection or dismantling of scaffolding platforms is required, making it convenient and efficient to use.

[0040] Furthermore, in this embodiment, the transfer mechanism includes a swing bracket 2 and a lifting mechanism 5 mounted on the swing bracket 2. The swing bracket 2 is hinged to the loading platform 11, and the loading platform 11 is provided with a swing drive component 12 for driving the swing bracket 2 to swing up and down. The self-propelled mechanism 4 is detachably connected to the lifting mechanism 5. The lifting mechanism 5 lifts the self-propelled mechanism 4 upward, increasing the distance between the self-propelled mechanism 4 and the swing bracket 2 (specifically as follows). Figure 3 As shown), then the swing bracket 2 swings from a horizontal state to a vertical state (specifically as shown). Figure 4 As shown in the figure, the self-propelled mechanism 4 can then be flipped onto the step on the working face, which is a reasonable and effective structure.

[0041] See details Figure 2 Preferably, the rear end of the swing bracket 2 is hinged to the rear end of the loading platform 11. Swing drive components 12 are provided on both the left and right sides of the loading platform 11, ensuring good symmetry and balance. The swing drive component 12 is a telescopic structure (e.g., a cylinder, hydraulic cylinder, electric push rod, etc.), with one end hinged to the loading platform 11 and the other end hinged to the swing bracket 2. By extending and retracting the swing drive component 12, the swing bracket 2 can be driven to swing up and down, achieving the switching between horizontal and vertical states. The structure is simple and reliable.

[0042] Furthermore, in this embodiment, the lifting mechanism 5 includes two parallel and equal-length connecting rods 51 and a connecting rod drive member 52 for driving the connecting rods 51 to swing up and down. One end of the connecting rod 51 is hinged to the swing bracket 2, and the other end is hinged to the self-propelled mechanism 4. See details. Figure 3 and Figure 4 The swing bracket 2, two connecting rods 51, and self-propelled mechanism 4 can form a parallelogram. Driven by the connecting rod drive 52, the two connecting rods 51 swing upward synchronously, causing the self-propelled mechanism 4 and its working platform 3 to rise and move forward as a whole, with good stability. This allows the self-propelled mechanism 4 to flip onto the platform at the working face when the swing bracket 2 swings upward to a vertical position. After the self-propelled mechanism 4 flips onto the platform at the working face, the connecting rod drive 52 restricts the connecting rods 51 from swinging downward, thus providing stable support for the self-propelled mechanism 4, allowing the rotating platform 44 to rotate and the lifting seat 43 to rise and fall. The structure is reasonable and effective.

[0043] In this embodiment, the connecting rod 51 includes two connecting rod segments 511 and a connecting member 512 (such as a connecting rod, connecting plate, etc.) for connecting the two connecting rod segments 511. The two connecting rod segments 511 are located on both sides of the swing bracket 2, and also on both sides of the self-propelled mechanism 4. The self-propelled mechanism 4 has a certain width. By setting the connecting rod 51 to include two connecting rod segments 511 and setting them on both sides of the self-propelled mechanism 4, and connecting the connecting rod segments 511 into a whole through the connecting member 512, the symmetry is good, which is beneficial for driving the overall movement of the self-propelled mechanism 4.

[0044] In a preferred embodiment, the connecting rod drive member 52 is a telescopic structure (e.g., a cylinder, hydraulic cylinder, electric push rod, etc.). One end of the connecting rod drive member 52 is hinged to the swing bracket 2, and the other end is hinged to the connecting member 512 of one of the connecting rods 51. The telescopic extension of the connecting rod drive member 52 drives the movement of the connecting member 512, thereby realizing the swing of the connecting rod 51. The structure is simple and has good reliability. Preferably, two connecting rod drive members 52 are provided and distributed at both ends of the connecting member 512, which provides good symmetry and is beneficial for driving the overall movement of the connecting rod 51.

[0045] Furthermore, in this embodiment, the self-propelled mechanism 4 is provided with a lifting guide rail 41, and a lifting seat 43 is provided on the lifting guide rail 41. The working platform 3 is located on the lifting seat 43. The lifting seat 43 can move along the lifting guide rail 41 (for example, by a lifting drive assembly 42 such as a hydraulic cylinder, a lead screw and nut mechanism, a gear and rack mechanism, or a commercially available lifting machine to drive the lifting seat 43 to rise and fall), thereby driving the working platform 3 to rise and fall. The height of the working platform 3 can be adjusted to achieve full coverage of the working face in the height direction.

[0046] Furthermore, in this embodiment, the lifting seat 43 is provided with a rotating platform 44 and a rotation drive component 45 for driving the rotating platform 44 to rotate. The working platform 3 is disposed on the rotating platform 44 (specifically, the platform body 33 of the working platform 3 is disposed on the rotating platform 44). The working platform 3 is integrated and installed on the rotating platform 44 with rotation function. During relocation, the working platform 3 is arranged in the front-to-back direction to avoid its width exceeding the width of the loading platform 11 itself, specifically as follows: Figure 1 and Figure 2 As shown. Before operation, rotating platform 24 is rotated 90°, and operating platform 3 is arranged along the left and right directions, as shown in the diagram. Figure 5 As shown, this allows the work platform 3 to be designed to be longer within the same vehicle length, and after rotation, it can cover a larger working area on the working face, making the structure reasonable and effective.

[0047] See details Figure 8 In this embodiment, the rotating platform 44 is hinged to the lifting seat 43, and the rotating drive component 45 is a telescopic structure (e.g., a cylinder, hydraulic cylinder, electric push rod, etc.). One end of the rotating drive component 45 is hinged to the rotating platform 44, and the other end is hinged to the lifting seat 43. By extending and retracting the rotating drive component 45, the rotating platform 44 can be driven to rotate relative to the lifting seat 43. The structure is simple and has good reliability. Of course, in other embodiments, the rotating drive component 45 can also be a motor, hydraulic motor, etc., as long as it can drive the rotating platform 44 to rotate.

[0048] Preferably, the rotating platform 44 is provided with a rotating arm 441, and the lifting seat 43 is provided with a first limiting part 431 and a second limiting part 432. The rotating arm 441 is located between the first limiting part 431 and the second limiting part 432. When the rotating arm 441 rotates with the rotating platform 44 and contacts the first limiting part 431 or the second limiting part 432, it indicates that the rotating platform 44 has rotated to its maximum angle (90° in this embodiment) or has completed its reset, which is helpful in determining the rotation angle of the rotating platform 44.

[0049] Furthermore, in this embodiment, the work platform 3 includes a first work platform 31 and a second work platform 32, and the distance between the first work platform 31 and the second work platform 32 is adjustable. Simultaneously providing the first work platform 31 and the second work platform 32 allows for the use of more workers and equipment, thereby further improving work efficiency.

[0050] See details Figure 9 An adjustable guide rail 443 and an adjustable drive component 442 (e.g., a cylinder, hydraulic cylinder) can be installed on the rotating platform 44. The adjustable guide rail 443 is arranged parallel to the lifting guide rail 41. The first working platform 31 and / or the second working platform 32 move along the adjustable guide rail 443 under the drive of the adjustable drive component 442. During operation, the first working platform 31 and / or the second working platform 32 increase their distance by moving along the adjustable guide rail 443 to avoid mutual interference. During relocation, the first working platform 31 and the second working platform 32 move closer together to save space.

[0051] In this embodiment, both the first working platform 31 and the second working platform 32 include a platform body 33 and retractable platforms 34 located at both ends of the platform body 33 (e.g., driven by cylinders, hydraulic cylinders, etc. to slide relative to the platform body 33). The working platform 3 can adjust the extension and retraction of the retractable platforms 34 according to the actual width of the working face to achieve full coverage in the width direction of the working face, which is simple and effective.

[0052] The method of using this self-propelled tunnel working vehicle is as follows: 1) Specifically, as follows Figure 1 and Figure 2 As shown, the self-propelled tunnel working vehicle is in the retracted state and reverses to the vicinity of the tunnel face. The telescopic beam 13 drives the telescopic outriggers 14 to extend to the left and right sides. The telescopic outriggers 14 extend downward to contact the bottom of the tunnel, providing stable support for the vehicle body 1. Preferably, at this time, the swing bracket 2 and the self-propelled mechanism 4 are in a horizontal state. 2) Specifically, as follows Figure 3 As shown, driven by the linkage drive component 52, the two linkages 51 swing upward synchronously, causing the self-propelled mechanism 4 and its working platform 3 to rise and move forward as a whole. 3) Specifically, as follows Figure 4As shown, the swing bracket 2 swings upward to a vertical position, at which point the self-propelled mechanism 4 flips onto the step on the working face; 4) Specifically, as follows Figure 5 As shown, the rotating platform 44 rotates 90°, so that the two-stage working platform 3 changes from being placed vertically to being placed horizontally, and then the lifting seat 43 drives the two-stage working platform 3 to descend to the lower position. 5) Specifically, as follows Figure 6 As shown, disconnect the self-propelled mechanism 4 from the connecting rod 51, and move the self-propelled mechanism 4 to a suitable working position near the working face; 6) Specifically, as follows Figure 7 As shown, the lifting platform 43 rises gradually along the lifting guide rail 41 to complete the loading of explosives on the entire working face; during the construction process, the telescopic platform 34 is adjusted according to the actual width of the working face.

[0053] 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 self-propelled tunnel working vehicle, characterized in that: It includes a vehicle body (1), a self-propelled mechanism (4) and a working platform (3) on the self-propelled mechanism (4). The vehicle body (1) is provided with a loading platform (11) and a transfer mechanism is provided on the loading platform (11) to transfer the self-propelled mechanism (4) to the tunnel steps. The self-propelled mechanism (4) and the transfer mechanism are detachably connected.

2. The self-propelled tunnel working vehicle according to claim 1, characterized in that: The transfer mechanism includes a swing bracket (2) and a lifting mechanism (5) provided on the swing bracket (2). The swing bracket (2) is hinged to the loading platform (11). The loading platform (11) is provided with a swing drive (12) for driving the swing bracket (2) to swing up and down. The self-propelled mechanism (4) is detachably connected to the lifting mechanism (5).

3. The self-propelled tunnel working vehicle according to claim 2, characterized in that: The lifting mechanism (5) includes two parallel and equal-length connecting rods (51) and a connecting rod drive (52) for driving the connecting rods (51) to swing up and down. One end of the connecting rod (51) is hinged to the swing bracket (2), and the other end is hinged to the self-propelled mechanism (4).

4. The self-propelled tunnel working vehicle according to claim 3, characterized in that: The connecting rod (51) includes two connecting rod parts (511) and a connector (512) for connecting the two connecting rod parts (511), and the two connecting rod parts (511) are located on both sides of the swing bracket (2).

5. The self-propelled tunnel working vehicle according to claim 4, characterized in that: The connecting rod drive (52) is a telescopic structure. One end of the connecting rod drive (52) is hinged to the swing bracket (2), and the other end is hinged to the connector (512) of one of the connecting rods (51).

6. The self-propelled tunneling vehicle according to any one of claims 1 to 5, characterized in that: The self-propelled mechanism (4) is provided with a lifting guide rail (41), and a lifting seat (43) is provided on the lifting guide rail (41). The working platform (3) is located on the lifting seat (43).

7. The self-propelled tunnel working vehicle according to claim 6, characterized in that: The lifting platform (43) is provided with a rotating platform (44) and a rotating drive component (45) for driving the rotating platform (44) to rotate. The working platform (3) is located on the rotating platform (44).

8. The self-propelled tunnel working vehicle according to claim 7, characterized in that: The rotating platform (44) is hinged to the lifting seat (43), and the rotating drive (45) is a telescopic structure. One end of the rotating drive (45) is hinged to the rotating platform (44), and the other end is hinged to the lifting seat (43).

9. The self-propelled tunneling vehicle according to any one of claims 1 to 5, characterized in that: The work platform (3) includes a first work platform (31) and a second work platform (32), and the distance between the first work platform (31) and the second work platform (32) is adjustable.

10. The self-propelled tunneling vehicle according to any one of claims 1 to 5, characterized in that: The work platform (3) includes a platform body (33) and a retractable platform (34) located at at least one end of the platform body (33).

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