A pusher machine for transporting a shield machine

Abstract

This utility model discloses a trolley shifter for transporting tunnel boring machines (TBMs), relating to the field of tunnel construction equipment technology. It includes a drive assembly, a shifter assembly, a limit stop assembly, a circular link chain, a driven housing, and a shifter moving frame. The shifter moving frame is fixed to the rear trolley of the TBM. The drive assembly and the driven housing are respectively fixed to both ends of the shifter moving frame. The shifter assembly is located above the shifter moving frame and is rolledly connected to the upper surface of the shifter moving frame. The circular link chain connects to both sides of the shifter assembly and surrounds the drive assembly and the driven housing. The limit stop assembly is located below the shifter moving frame on the side closest to the drive assembly and is fixed to the rear trolley of the TBM. By setting the limit stop assembly, this utility model can stop the transport train after it reaches the shifter's position to prevent it from exceeding the shifter's working range. It also prevents material from falling onto the trolley during the TBM's muck transport system's material unloading process.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to a car-shifting machine for transporting and assembling tunnel boring machines. Background Technology

[0002] During tunnel construction, the excavated rock falling from the cutterhead after cutting the tunnel face needs to be transported outside the tunnel promptly. To prevent uneven loading, the transport train requires frequent position adjustments during transport. This repeated starting and stopping of the transport train inside the tunnel results in significant energy consumption and generates substantial amounts of fuel combustion exhaust, polluting the tunnel's internal environment and negatively impacting the health of construction workers. Furthermore, when the transport train is fully loaded with excavated rock, its heavy load makes starting the transport process slow and laborious. Therefore, there is an urgent need to design a device that can adjust the position of the transport train without activating it, assisting in the even loading of excavated rock and providing initial thrust for startup, thus solving these problems. Utility Model Content

[0003] This utility model provides a car shifter for transporting tunnel boring machines, which can solve the problem in the prior art that the position of the transport train needs to be adjusted multiple times to prevent uneven loading when transporting slag.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A trolley for transporting and assembling tunnel boring machines includes a drive assembly, a lever assembly, a limit stop assembly, a circular chain, a driven housing, and a lever moving frame, wherein the lever moving frame is fixed on a trolley at the rear of the tunnel boring machine.

[0006] The drive assembly and the driven housing are respectively fixed at both ends of the lever moving frame;

[0007] The lever assembly is located above the lever moving frame and is rolledly connected to the upper surface of the lever moving frame;

[0008] The two ends of the circular chain are connected to both sides of the lever assembly and surround the drive assembly and the driven housing;

[0009] The limiting stop assembly is located below the side of the lever moving frame near the drive assembly and is fixed on the rear trolley of the tunnel boring machine.

[0010] As a further embodiment of this utility model: the drive assembly includes a housing, a sprocket, and a hydraulic motor;

[0011] The sprocket is located inside the housing;

[0012] The hydraulic motor is fixed to one side of the housing, and its output shaft is fixedly connected to the central shaft of the sprocket.

[0013] The sprocket engages with the circular link chain for transmission and guides the circular link chain into the inside of the lever moving frame.

[0014] As a further embodiment of this utility model: the power output end of the hydraulic motor is connected to the central shaft of the sprocket via a coupling or gear set.

[0015] As a further embodiment of this utility model: the lever assembly includes a lever seat, a lever, a lever adjusting cylinder, and a steel drag chain;

[0016] The lever is rotatably connected to the lever seat;

[0017] The lever adjusting cylinder is rotatably connected to a lever and a lever seat at both ends;

[0018] The steel drag chain connects the lever seat and the lever moving frame, and integrates oil pipes and sensor wiring harnesses inside.

[0019] As a further embodiment of this utility model: the extension and retraction of the lever adjustment cylinder can drive the lever to rotate 0°–90° around the connection point.

[0020] As a further embodiment of this utility model: the limiting stop rod assembly includes a stop rod and a stop rod adjusting cylinder;

[0021] The lever adjusting cylinder is connected to the lever and drives the lever to extend and retract horizontally.

[0022] As a further embodiment of this utility model: a driven sprocket is provided inside the driven housing;

[0023] The driven sprocket shaft is connected to the outer frame of the driven housing via an adjusting block;

[0024] The circular chain is guided to the inside of the lever moving frame via the driven sprocket.

[0025] As a further embodiment of this utility model: a partition plate is fixed inside the lever moving frame to divide the annular space into upper and lower layers;

[0026] The bottom of the lever moving frame is fixed to the supporting trolley at the rear of the tunnel boring machine via several support bases.

[0027] As a further embodiment of this utility model: the partition plate is a welded steel plate structure, and its width matches the width of the circular link chain.

[0028] As a further embodiment of this utility model: the circular link chain is a high-strength alloy steel roller chain with a pitch of 50–200 mm.

[0029] The beneficial effects of this utility model are as follows: The drive assembly uses a hydraulic motor as the power source, which reduces energy consumption and noise compared to electric motor drive. By setting a limit stop assembly, the transport train can be stopped after reaching the position of the jacking machine to prevent it from exceeding the working range of the jacking machine. It also prevents the transport train from moving during the unloading process of the tunnel boring machine's excavation transport system, causing excavation to fall onto the trolley. By setting a lever assembly, the position of the transport train can be adjusted according to usage needs, achieving a more even distribution of excavation. It also provides a certain thrust when the transport train starts at full load. By setting a steel drag chain, the oil supply pipe and sensor harness of the lever adjusting cylinder can be integrated into the drag chain, preventing them from being bumped by excavation during use and preventing damage caused by friction between the pipes and harness and the lever moving frame during long-term use. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of a trolley mechanism used for transporting and assembling tunnel boring machines.

[0032] Figure 2 This is a front view of a trolley for transporting and assembling tunnel boring machines.

[0033] Figure 3 This is a rear view of a trolley mechanism used for transporting and assembling tunnel boring machines.

[0034] Figure 4 This is a side view of a trolley mechanism used for transporting and assembling tunnel boring machines.

[0035] Figure 5 This is a top view of a trolley mechanism used for transporting and assembling tunnel boring machines.

[0036] Figure 6 This is a cross-sectional view (AA) of a type of transport vehicle for tunnel boring machines.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Drive assembly; 101. Sprocket; 102. Hydraulic motor; 2. Lever assembly; 201. Lever; 202. Lever adjusting cylinder; 203. Steel cable chain; 3. Limit stop assembly; 301. Stop bar; 302. Stop bar adjusting cylinder; 4. Ply chain; 5. Driven housing; 501. Driven sprocket; 502. Adjusting block; 6. Lever moving frame; 601. Divider plate; 602. Support base. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Please see Figures 1-6 As shown, this utility model is a trolley for transporting and assembling tunnel boring machines (TBMs), comprising a drive assembly 1, a lever assembly 2, a limit stop assembly 3, a circular link chain 4, a driven housing 5, and a lever moving frame 6. The lever moving frame 6 is fixed to the rear trolley of the TBM. The drive assembly 1 and the driven housing 5 are located at opposite ends of the lever moving frame 6 and are fixed in place. The lever assembly 2 is located above the lever moving frame 6 and is rolledly connected to the upper surface of the lever moving frame 6. The circular link chain 4 is connected to both sides of the lever assembly 2 and surrounds the drive assembly 1 and the driven housing 5. The limit stop 3 is located below the lever moving frame 6 on the side closest to the drive assembly 1 and is fixed to the rear trolley of the TBM.

[0043] The drive assembly 1 includes a sprocket 101 located inside the housing and a hydraulic motor 102 fixed to one side of the housing. The output shaft of the hydraulic motor 102 is fixedly connected to the central shaft of the sprocket 101. The sprocket 101 engages with the circular link chain 4 to drive and guide the circular link chain 4 into the interior of the lever moving frame 6. Using a hydraulic motor as the power source reduces energy consumption and noise compared to electric motor drive, thus improving the working environment inside the tunnel.

[0044] The lever assembly 2 includes a lever 201 rotatably connected to a lever seat, lever adjusting cylinders 202 rotatably connecting the lever 201 to the lever seat at both ends, and a steel drag chain 203 connecting the lever seat to the lever moving frame 6. The lever adjusting cylinder 202 can push the lever 201 to rotate along the connection position between the lever 201 and the lever seat to adjust the lever position, thereby actuating the transport train to evenly fill the slag and providing thrust when the transport train starts fully loaded. The steel drag chain 203 integrates the oil supply pipe and sensor wiring harness of the lever adjusting cylinder 202, preventing damage caused by impacts from slag and friction between the pipes and the lever moving frame during use, protecting the oil supply pipe and sensor wiring harness, and extending their service life.

[0045] The limit stop assembly 3 includes a stop bar 301 and a stop bar adjusting cylinder 302. The stop bar adjusting cylinder 302 can push the stop bar 301 to extend or retract, preventing the transport train from exceeding the working range of the car-pulling machine and preventing the transport train from moving during the unloading process. When the transport train is traveling normally, the stop bar adjusting cylinder 302 retracts the stop bar 301 to prevent the stop bar 301 from obstructing the operation of the transport train; when it is necessary to stop, the stop bar adjusting cylinder 302 extends the stop bar 301 to stop the transport train, flexibly controlling the stopping and starting of the transport train and improving construction efficiency.

[0046] A driven sprocket 501 is rotatably connected inside the driven housing 5. An adjusting block 502 is positioned at the connection point between the central shaft of the driven sprocket 501 and the outer frame of the driven housing 5. When the round-pole chain 4 passes through the driven housing 5, it is turned by the driven sprocket 501 into the interior of the lever moving frame 6. The adjusting block 502 adjusts the position of the driven sprocket 501 to compensate for the elongation of the round-pole chain 4 due to metal fatigue, ensuring chain tension.

[0047] The lever moving frame 6 has a fixed partition plate 601 inside, and several support bases 602 support the entire lever moving frame 6 at a certain height. The partition plate 601 prevents the circular link chain 4 from getting tangled, and the support bases 602 ensure the stable support of the lever moving frame 6. The overall structure of the lever moving machine is compact, suitable for operation in the narrow space inside the tunnel, saving space inside the tunnel and facilitating construction operations.

[0048] In use, the transport train moves to the position of the trolley behind the tunnel boring machine (TBM) and is then limited by the limit stop assembly 3. The TBM's excavation transport system then transports the excavated material above the transport train and into its carriage. Because the discharge port is fixed, excavated material may accumulate on the trolley. At this point, the hydraulic motor 102 in the drive assembly 1 drives the sprocket 101 to rotate, which in turn drives the circular chain 4 to move the lever assembly 2. The lever 201 can be adjusted to a horizontal position by the lever adjustment cylinder 202 and, during movement, presses against the frame of the transport train, thus moving the entire train and ensuring that the excavated material falls evenly into the carriage. When the transport train is fully loaded and needs to be started to transport the excavated material outside the tunnel, its initial movement is difficult due to its large weight. At this point, the drive assembly 1 drives the lever assembly 2 to push the transport train, giving it an initial velocity to facilitate the start of transport.

[0049] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A car-shifting machine for transporting and assembling tunnel boring machines, characterized in that, The assembly includes a drive assembly (1), a lever assembly (2), a limit stop assembly (3), a circular chain (4), a driven housing (5), and a lever moving frame (6), characterized in that: The lever moving frame (6) is fixed on the rear trolley of the tunnel boring machine; The drive assembly (1) and the driven housing (5) are respectively fixed at both ends of the lever moving frame (6); The lever assembly (2) is located above the lever moving frame (6) and is rolledly connected to the upper surface of the lever moving frame (6); The two ends of the circular chain (4) are connected to both sides of the lever assembly (2) and surround the drive assembly (1) and the driven housing (5); The limiting stop assembly (3) is located below the side of the lever moving frame (6) near the drive assembly (1) and is fixed on the rear trolley of the tunnel boring machine.

2. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 1, characterized in that, The drive assembly (1) includes a housing, a sprocket (101), and a hydraulic motor (102); The sprocket (101) is located inside the housing; The hydraulic motor (102) is fixed on one side of the housing, and its output shaft is fixedly connected to the central shaft of the sprocket (101); The sprocket (101) engages with the circular link chain (4) for transmission and guides the circular link chain (4) into the inside of the lever moving frame (6).

3. A trolley mechanism for transporting and assembling tunnel boring machines according to claim 2, characterized in that, The power output end of the hydraulic motor (102) is connected to the central shaft of the sprocket (101) via a coupling or gear set.

4. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 1, characterized in that, The lever assembly (2) includes a lever seat, a lever (201), a lever adjusting cylinder (202), and a steel drag chain (203); The lever (201) is rotatably connected to the lever seat; The lever adjusting cylinder (202) is rotatably connected to the lever (201) and the lever seat at both ends; The steel drag chain (203) connects the lever seat and the lever moving frame (6), and integrates oil pipes and sensor wiring harnesses inside.

5. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 4, characterized in that, The extension and retraction of the lever adjusting cylinder (202) can drive the lever (201) to rotate 0°–90° around the connection point.

6. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 1, characterized in that, The limiting stop assembly (3) includes a stop (301) and a stop adjustment cylinder (302); The lever adjusting cylinder (302) is connected to the lever (301) and drives the lever (301) to extend and retract horizontally.

7. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 1, characterized in that, The driven housing (5) is equipped with a driven sprocket (501); The central shaft of the driven sprocket (501) is connected to the outer frame of the driven housing (5) via an adjusting block (502); The circular chain (4) is guided by the driven sprocket (501) to the inside of the lever moving frame (6).

8. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 1, characterized in that, The lever moving frame (6) has a partition plate (601) fixed inside, which divides the annular space into upper and lower layers; The bottom of the lever moving frame (6) is fixed to the rear trolley of the tunnel boring machine by several support bases (602).

9. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 8, characterized in that, The partition plate (601) is a welded steel plate structure, and its width matches the width of the circular link chain (4).

10. A car-shifting machine for transporting and assembling tunnel boring machines according to claim 1, characterized in that, The circular link chain (4) is a high-strength alloy steel roller chain with a pitch of 50–200 mm.

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