A wedge-shaped short rail combination for articulating a micro-shield machine platform

Abstract

The utility model discloses a kind of wedge short rail combinations for micro shield machine trolley hinging, it is related to shield machine technical field, including at least two trolleys and wedge short rail device, guide rail is provided on the trolley, the guide rail on two trolleys is correspondingly set, and two trolleys are connected and positioned by positioning device, so that the guide rail on two trolleys is connected;Wedge short rail device is set in the guide rail on the trolley one end position, when the trolley is connected, the wedge short rail device connection, so that two guide rails are connected by the wedge short rail device, locomotive moves by the guide rail, two guide rails can be connected by wedge short rail device on trolley.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, and in particular to a wedge-shaped short rail assembly for articulating the trolley of a miniature tunnel boring machine. Background Technology

[0002] Tunnel boring machines (TBMs) using prefabricated concrete segment lining have been widely used in the construction of underground tunnels and water resource allocation networks. Taking the construction of urban underground water supply networks as an example, due to the size of the water supply pipeline and overall cost considerations, the inner diameter of the tunnel is relatively small, reaching two meters. At the same time, in order to ensure the construction efficiency of long-distance tunnel segment laying and reduce costs, the width of each segment needs to be maximized, thereby reducing the total number of rings required for assembly. Due to the influence of excessively large segment width and small pipeline diameter, the micro-TBM trolley has a special structural layout. Tracks for transporting segments need to be arranged on the trolley panel to enable the trolley to smoothly transport segments to the segment hoisting and assembly area inside the TBM.

[0003] However, due to the numerous hydraulic, electrical, circulating, industrial water, and gas trolleys required for tunneling, the miniature tunnel boring machine (TBM) trolleys are connected front to back using pins inserted into connecting plate lugs. This results in discontinuous tracks on all trolley panels. Furthermore, during TBM tunneling, the tunnel axis undergoes dynamic turning changes in both horizontal and vertical directions, causing spatial angular misalignment of the trolley axis at the articulation points. This leads to angled tracks at the articulation points. These track problems encountered by the segment transport locomotive when passing through the articulation points of adjacent trolley sections significantly impact the stability of the journey and construction efficiency. Therefore, ensuring smooth and continuous tracks at the trolley articulation points is crucial. Utility Model Content

[0004] This utility model provides a wedge-shaped short rail assembly for the articulation of a miniature tunnel boring machine trolley, comprising:

[0005] At least two trolleys are provided with guide rails. The guide rails on the two trolleys are correspondingly arranged, and the two trolleys are connected and positioned by a positioning device so that the guide rails on the two trolleys are aligned.

[0006] A wedge-shaped short rail device is installed at one end of the guide rail on the trolley. When the trolleys dock, the wedge-shaped short rail device connects, so that the two guide rails are connected through the wedge-shaped short rail device, and the trolley moves through the guide rail.

[0007] Preferably, in this embodiment of the application, the wedge-shaped short rail device includes:

[0008] A short rail slot is provided on the trolley, and one end of the short rail slot is abutted and connected to one end of the guide rail.

[0009] A wedge-shaped upper rail is provided on the short rail slot. The end of the wedge-shaped upper rail away from the guide rail is provided with a first inclined surface. The two wedge-shaped upper rails are connected by docking through the first inclined surface.

[0010] Preferably, in this embodiment of the application, the two first inclined surfaces have the same inclination angle.

[0011] Preferably, in this embodiment of the application, a positioning block is provided on the short rail slot, and a threaded hole is provided inside the short rail slot;

[0012] A positioning platform is provided on the wedge-shaped upper rail corresponding to the position of the short rail slot. The positioning block abuts against the positioning platform on the side facing the short rail slot. An installation hole is provided on the wedge-shaped upper rail corresponding to the position of the threaded hole. The threaded hole and the installation hole are connected by a fixing screw, so that the wedge-shaped upper rail is installed on the short rail slot.

[0013] Preferably, in this embodiment of the application, one side of the short rail slot is flush with one side of the guide rail, and the locomotive wheel moves to one side of the short rail slot via one side of the guide rail.

[0014] Preferably, in this embodiment of the application, one side of the wedge-shaped upper rail is flush with one side of the guide rail, and a second inclined surface is provided on one side of the wedge-shaped upper rail. The second inclined surface forms a transition surface, and when the two guide rails are connected, the two wedge-shaped upper rails are connected by the second inclined surface.

[0015] Preferably, in this embodiment of the application, the trolley is provided with an abutment plate, and two guide rails are installed on the abutment plate. The two guide rails are arranged in parallel on the abutment plate, and a wedge-shaped short rail device is provided on one side of each of the two guide rails.

[0016] The positioning device is provided below one of the guide rails. The positioning device includes a rotating component, which is respectively located on one side of the trolley. The two trolleys are rotatably connected by the rotating component. The wedge-shaped short rail device is provided above the rotating component.

[0017] Preferably, in this embodiment of the application, the first inclined surfaces of the corresponding wedge-shaped upper rails on the two trolleys are arranged in parallel, and a rotation gap is formed between the two first inclined surfaces;

[0018] When the two trolleys rotate via the rotating member, the wedge-shaped upper rail rotates through the rotation gap, causing the guide rails on the two trolleys to bend and connect.

[0019] Preferably, in this embodiment of the application, the rotating component includes a hinge shaft and a bearing sleeve arranged coaxially. The hinge shaft is fixed to the side wall of one trolley, the bearing sleeve is fixed to the side wall of another trolley, and the hinge shaft is rotatably inserted into the bearing sleeve.

[0020] Preferably, in this embodiment of the application, a third inclined surface is provided at the top position of the wedge-shaped upper rail.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] By using a wedge-shaped, intersecting, oblique design, the discontinuous track at the trolley's articulation point becomes obliquely continuous. When the locomotive wheels travel over the articulation point, they can simultaneously contact the tracks on both sides of the articulation point, significantly reducing the impact of discontinuous wheel movement. Multiple inclined surfaces at the ends of the wedge-shaped short rails form an obtuse-angled guide area, allowing the wheels to smoothly pass over the track at the trolley's articulation point when the axis of each trolley section deflects. The design features a detachable and replaceable structure, allowing for quick replacement with removable screws after the wedge-shaped short rails wear out, reducing on-site after-sales maintenance waiting time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A partial structural schematic diagram of a wedge-shaped short rail assembly for articulating a miniature tunnel boring machine trolley, provided by this utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of a local structure in the middle;

[0026] Figure 3 An exploded structural diagram of the wedge-shaped short rail device provided by this utility model;

[0027] Figure 4 A schematic diagram of the overall structure of the trolley turning left provided by this utility model;

[0028] Figure 5 A schematic diagram of the overall structure of the trolley turning right provided by this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Cart; 110. Guide rail; 120. Abutment plate; 121. Protrusion; 200. Wedge-shaped short rail device; 210. Short rail slot; 211. Positioning block; 212. Threaded hole; 220. Wedge-shaped upper rail; 221. First inclined surface; 222. Positioning platform; 223. Mounting hole; 224. Second inclined surface; 225. Third inclined surface; 230. Fixing screw; 300. Positioning device; 310. Rotating component; 311. Hinge shaft; 312. Bearing sleeve; 400. Rotation clearance. Detailed Implementation

[0031] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0032] like Figures 1 to 4 As shown in the figure, the present invention provides a wedge-shaped short rail assembly for articulating a miniature shield tunneling machine trolley, including at least two trolleys 100 and two corresponding parallel guide rails 110 on the trolleys 100. The two trolleys 100 are connected by a positioning device 300, so that the guide rails 110 on the two trolleys 100 can be docked and connected by a wedge-shaped short rail device 200, which facilitates the connection of the guide rails 110.

[0033] Specifically, as mentioned above:

[0034] A contact plate 120 is provided above the trolley 100, and a protrusion 121 is provided on one side of the contact plate 120. Two parallel guide rails 110 are installed on the contact plate 120. When the two trolleys 100 are connected by the positioning device 300, the protrusion 121 on the contact plate 120 abuts against each other, so that the guide rails 110 on the two trolleys 100 can be connected to facilitate the passage of the locomotive on the guide rails 110.

[0035] The positioning device 300 in this application mainly includes a rotating component 310, which is located on one side of the trolley 100. The rotating component 310 includes a coaxially arranged hinge shaft 311 and bearing sleeve 312. The hinge shaft 311 is fixed to the side wall of one trolley 100, and the bearing sleeve 312 is fixed to the side wall of the other trolley 100. The hinge shaft 311 is rotatably inserted into the bearing sleeve 312, allowing the two trolleys 100 to rotate relative to each other. This allows the guide rails 110 on the two trolleys 100 to have a certain degree of curvature when they are joined, adapting to the dynamic turning changes of the tunnel axis. This design makes the locomotive more stable when passing through the hinge point of the trolleys 100, avoiding intermittent impacts caused by track bends.

[0036] A wedge-shaped short rail device 200 is provided above the rotating component 310. The wedge-shaped short rail device 200 includes a short rail slot 210 and a wedge-shaped upper rail 220. One end of the short rail slot 210 abuts against one end of the guide rail 110 to form a stable connection structure. The wedge-shaped upper rail 220 is disposed on the short rail slot 210, and its end away from the guide rail 110 is designed with a first inclined surface 221. In this embodiment, the inclination angle of the first inclined surfaces 221 on the two trolleys 100 is the same, so that when the two trolleys 100 are docked, the two first inclined surfaces 221 will contact each other and fit tightly, allowing the two guide rails 110 to be smoothly and continuously connected by the wedge-shaped short rail device 200. This design not only enhances the continuity of the track, but also effectively reduces the bumps and impacts of the locomotive during operation.

[0037] To further enhance the stability and durability of the connection, a positioning block 211 and a threaded hole 212 are also provided on the short rail slot 210. Meanwhile, a positioning platform 222 and a mounting hole 223 are provided at the corresponding position of the wedge-shaped upper rail 220. The short rail slot 210 is fixedly installed at one end of the guide rail 110, connecting the guide rail 110 to the wedge-shaped short rail device 200. The wedge-shaped upper rail 220 is installed on the short rail slot 210, and a positioning platform 222 is provided on the wedge-shaped upper rail 220 at the position corresponding to the short rail slot 210, so that the bottom of the short rail slot 210 is located within the positioning platform 222, making the short rail slot 210 and the wedge-shaped upper rail 220 a single unit, facilitating the connection of the guide rail 110.

[0038] To facilitate a stable connection, a positioning block 211 is provided on the short rail slot 210. The positioning block 211 is located on one side of the short rail slot 210, and the side of the positioning block 211 facing the short rail slot 210 abuts against the positioning platform 222.

[0039] The mounting hole 223 on the wedge-shaped upper rail 220 is set to correspond to the position of the threaded hole 212. The threaded hole 212 and the mounting hole 223 are connected by a fixing screw 230, so that the wedge-shaped upper rail 220 is installed on the short rail slot 210.

[0040] Through the abutment of the positioning block 211 and the tightening action of the fixing screw 230, the wedge-shaped upper rail 220 can be firmly installed on the short rail slot 210, thereby ensuring the stability and reliability of the entire wedge-shaped short rail assembly during long-term use.

[0041] To facilitate the connection of the two guide rails 110 so that the locomotive can pass, one side of the short rail slot 210 is flush with one side of the guide rail 110, and one side of the wedge-shaped upper rail 220 is flush with one side of the guide rail 110. The locomotive's wheels move to one side of the short rail slot 210 through one side of the guide rail 110.

[0042] Furthermore, to ensure a smooth transition during locomotive operation, one side of the wedge-shaped upper rail 220 is not only flush with one side of the guide rail 110, but also has a second inclined surface 224 at their joint. This design creates a smooth transition surface, allowing the two wedge-shaped upper rails 220 to seamlessly connect when the two guide rails 110 are joined. The smooth transition is achieved through the second inclined surface 224, which greatly reduces the impact and bumps experienced by the locomotive wheels when passing through the articulation point. This design makes the locomotive pass through the articulation point of the trolley 100 more smoothly, effectively improving construction efficiency and safety.

[0043] In this embodiment, a rotation gap 400 is preferably provided. The rotation gap 400 is located between the parallel first inclined surfaces 221 of the two wedge-shaped upper rails 220. When the two trolleys 100 rotate relative to each other via the rotating member 310, this rotation gap 400 allows the wedge-shaped upper rails 220 to have a certain amount of room to move during rotation, thereby ensuring that the two guide rails 110 can maintain a smooth and continuous connection when docking. This design not only enhances the flexibility and adaptability of the track, but also effectively improves the stability and comfort of the locomotive during operation. In addition, the third inclined surface 225 provided at the top of the wedge-shaped upper rails 220 further optimizes the guiding effect of the track, allowing the locomotive wheels to pass more smoothly through the articulation points of the trolleys 100 during operation, further improving construction efficiency and safety.

[0044] In this embodiment, a third inclined surface 225 is provided at the top of the wedge-shaped upper rail 220. The third inclined surface 225 forms a guide transition area in the vertical direction of the track at the hinge point of adjacent trolleys 100. When the locomotive wheels travel to the hinge point of the trolley 100, the third inclined surface 225 can guide the wheels to smoothly transition from one side of the track to the other side, effectively reducing the impact and bumps caused by track changes. This design not only improves the stability of locomotive travel but also significantly extends the service life of the track and the locomotive. In addition, the setting of the third inclined surface 225 also enhances the guiding effect of the track, enabling the locomotive to move more accurately along the predetermined trajectory during travel, further improving construction efficiency and accuracy.

[0045] In summary, the wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley provided by this utility model, through a series of ingenious designs and innovations, successfully solves the problems existing in the prior art, and provides a more efficient, stable and reliable solution for the construction of underground tunnels and water resource allocation pipeline networks.

Claims

1. A wedge-shaped short rail assembly for articulating the trolley of a miniature tunnel boring machine, characterized in that, include: At least two trolleys are provided with guide rails. The guide rails on the two trolleys are correspondingly arranged, and the two trolleys are connected and positioned by a positioning device so that the guide rails on the two trolleys are aligned. A wedge-shaped short rail device is installed at one end of the guide rail on the trolley. When the trolleys dock, the wedge-shaped short rail device connects, so that the two guide rails are connected through the wedge-shaped short rail device, and the trolley moves through the guide rail.

2. The wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley according to claim 1, characterized in that, The wedge-shaped short rail device includes: A short rail slot is provided on the trolley, and one end of the short rail slot is abutted and connected to one end of the guide rail. A wedge-shaped upper rail is provided on the short rail slot. The end of the wedge-shaped upper rail away from the guide rail is provided with a first inclined surface. The two wedge-shaped upper rails are connected by docking through the first inclined surface.

3. The wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley according to claim 2, characterized in that, The two first inclined planes have the same tilt angle.

4. The wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley according to claim 2, characterized in that, The short rail slot is provided with a positioning block, and the short rail slot is provided with a threaded hole; A positioning platform is provided on the wedge-shaped upper rail corresponding to the position of the short rail slot. The positioning block abuts against the positioning platform on the side facing the short rail slot. An installation hole is provided on the wedge-shaped upper rail corresponding to the position of the threaded hole. The threaded hole and the installation hole are connected by a fixing screw, so that the wedge-shaped upper rail is installed on the short rail slot.

5. The wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley according to claim 2, characterized in that, One side of the short rail slot is flush with one side of the guide rail, and the locomotive wheels move to one side of the short rail slot via one side of the guide rail.

6. The wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley according to claim 5, characterized in that, One side of the wedge-shaped upper rail is flush with one side of the guide rail. A second inclined surface is provided on one side of the wedge-shaped upper rail, forming a transition surface. When the two guide rails are connected, the two wedge-shaped upper rails are connected by the transition surface.

7. The wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley according to claim 3, characterized in that, The trolley is equipped with an abutment plate, and two guide rails are mounted on the abutment plate. The two guide rails are arranged in parallel on the abutment plate, and a wedge-shaped short rail device is provided on one side of each of the two guide rails. The positioning device is provided below one of the guide rails. The positioning device includes a rotating component, which is respectively located on one side of the trolley. The two trolleys are rotatably connected by the rotating component. The wedge-shaped short rail device is provided above the rotating component.

8. The wedge-shaped short rail assembly for articulating the miniature shield tunneling machine trolley according to claim 7, characterized in that, The first inclined surfaces of the corresponding wedge-shaped upper rails on the two trolleys are arranged in parallel, and a rotational gap is formed between the two first inclined surfaces; When the two trolleys rotate via the rotating member, the wedge-shaped upper rail rotates through the rotation gap, causing the guide rails on the two trolleys to bend and connect.

9. A wedge-shaped short rail assembly for articulating the trolley of a miniature tunnel boring machine according to claim 7, characterized in that, The rotating component includes a hinge shaft and a bearing sleeve arranged coaxially. The hinge shaft is fixed to the side wall of one trolley, and the bearing sleeve is fixed to the side wall of another trolley. The hinge shaft is rotatably inserted into the bearing sleeve.

10. A wedge-shaped short rail assembly for articulating the trolley of a miniature tunnel boring machine according to claim 2, characterized in that, A third inclined surface is provided at the top of the wedge-shaped upper rail.

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