An articulated shield jumbo tie

Abstract

The utility model discloses a hinged shield trolley rail tie which relates to shield machine technical field, including rail tie main part and segment, the rail tie main part fixed mounting is in the inner side of segment, the rail tie main part upper end fixed mounting has the trolley guide rail, the trolley guide rail has the trolley main body on the travel, the rail tie main part includes the rail tie frame that sticks in the inner wall of segment, the rail tie frame upper end is close to the one side fixed setting of segment inner wall and is provided with two groups of rotating sleeve, the connecting plate is rotatably installed on the rotating sleeve through the pin shaft, the connecting plate fixed mounting is on segment, the utility model trolley unilateral asymmetric arrangement both sides load unevenness leads to the rail tie frame to move, through the connecting plate rotation and the curved bolt of segment connection form fixed connection, make the uneven load conduction on segment, and then prevent the deflection problem that trolley is brought in the process of tunneling because both sides uneven load.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, specifically to an articulated tunnel boring machine trolley sleeper. Background Technology

[0002] Currently, with the acceleration of national infrastructure construction, tunnel boring machines (TBMs) are widely used in the construction of tunnels for subways, railways, highways, municipal works, and hydropower projects. Conventional TBMs, depending on the pipe diameter and construction requirements, have auxiliary equipment on their trolleys mainly arranged symmetrically on both sides or asymmetrically on one side. In the case of asymmetrically arranged auxiliary equipment on one side, the subsequent trolleys need to continuously advance in the tunnel to assist the TBM head in its continuous excavation. As the main component supporting the normal excavation of the TBM head, the smooth operation of the trolley located at the rear of the main machine directly affects the efficiency of the entire TBM excavation operation.

[0003] During construction, the tunnel boring machine's axis will dynamically change in both horizontal and vertical directions due to various factors. Typically, when the tunnel boring machine (TBM) is asymmetrically arranged on one side, a counterweight needs to be added to the other side to balance the uneven load. When the load difference is too large or the number of TBMs increases, the weight and number of counterweights will increase exponentially, leading to excessive economic costs. Without counterweights, uneven loads on both sides of the TBM, with one side being overloaded and the other underloaded, will cause the TBM sleepers on the track to move relative to the tunnel segments. This can cause the TBM to deflect during tunneling, resulting in unstable progress, abnormal operation of auxiliary equipment, and in severe cases, tilting and collisions with the tunnel wall, or even the main machine rotating, all of which affect the normal operation of the equipment. Utility Model Content

[0004] This utility model provides an articulated shield tunnel trolley sleeper, which can form a fixed connection between the trolley sleeper and the tunnel segments during shield tunneling, thereby solving the problem of uneven load caused by the asymmetrical layout of the trolley on one side and resolving the problems of the trolley in operation of the shield machine.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A hinged shield tunnel trolley sleeper includes a sleeper body and a tunnel segment. The sleeper body is fixedly installed on the inner side of the tunnel segment, and a trolley guide rail is fixedly installed on the upper end of the sleeper body. The trolley body travels on the trolley guide rail.

[0007] The sleeper body includes a sleeper frame that fits against the inner wall of the tunnel segment. Two sets of rotating sleeves are fixedly installed on the upper end of the sleeper frame near the inner wall of the tunnel segment. A connecting plate is rotatably installed on the rotating sleeve via a pin shaft. The connecting plate is fixedly installed on the tunnel segment.

[0008] Preferably, the side of the sleeper frame closest to the tunnel segment has an arc-shaped base plate that matches the inner circumference of the tunnel segment.

[0009] Preferably, a support pad is fixedly provided on the side of the sleeper frame near the tunnel segment.

[0010] Preferably, a shaft sleeve is fixedly provided on one side of the connecting plate, and the shaft sleeve is rotatably sleeved on the outer circumference of the pin.

[0011] Preferably, the upper end of the sleeper frame is fixedly provided with a stop for limiting the guide rail of the trolley.

[0012] Preferably, the inner wall of the tube segment is provided with two sets of mounting grooves for mounting the connecting plate.

[0013] Preferably, a bent bolt is fixedly embedded in the mounting groove, with both ends of the bent bolt extending out of the surface of the mounting groove. The connecting plate is provided with a reserved hole that mates with the bent bolt, and the connecting plate is fixed to the mounting groove by a nut.

[0014] Preferably, the bottom of the sleeper frame is provided with anti-slip texture to increase friction with the tunnel floor.

[0015] Preferably, both sides of the connecting plate are provided with connecting lugs that cooperate with and fit against the surface of the mounting groove, and the surface of the mounting groove is provided with a wear-resistant coating.

[0016] Preferably, the support pad is made of an elastic material used to absorb vibrations during the operation of the trolley body.

[0017] The beneficial effects of this utility model are:

[0018] (1) The guide rail for the trolley is arranged on the sleeper frame. When the trolley is asymmetrically arranged on one side and the load on both sides is uneven, causing the sleeper frame to move, the bending bolts connected to the connecting plate and the segment are used to form a fixed connection, so that the uneven load is transmitted to the segment, thereby preventing the trolley from deflecting due to uneven load on both sides during the tunneling process.

[0019] (2) By welding the sleeper frame, stop block and rotating sleeve to form a fixed connection, a stable support base is formed, which improves the stability of the guide rail for the trolley to travel.

[0020] (3) The connecting plate forms a rotatable hinge connection with the rotating sleeve through the pin, so that the connecting plate can swing around the sleeper frame at a certain angle, thereby adapting to different shapes and positions of tunnel segments.

[0021] (4) The connecting plate is fixedly connected to the tunnel segment through the reserved hole and the bent bolt, which transmits the uneven load to the tunnel segment and effectively prevents the trolley from deflecting.

[0022] (5) The installation of inclined grooves and support pads further enhances the stability of the connection and the stability of the sleeper frame.

[0023] (6) The setting of the shaft sleeve enhances the rotational stability of the pin and improves the rotational reliability of the connecting plate. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of a hinged shield tunnel trolley sleeper according to this utility model.

[0026] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point B;

[0027] Figure 3 This is a utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0028] Figure 4 This is a three-dimensional structural diagram of the main body of the railway sleeper of this utility model;

[0029] Figure 5 This is an exploded structural diagram of the main body of the railway sleeper of this utility model.

[0030] In the diagram: 1. Sleeper body; 2. Trolley body; 3. Segment; 31. Installation spur; 32. Bending bolt; 4. Trolley guide rail; 11. Sleeper frame; 12. Stop block; 13. Rotating sleeve; 14. Pin; 15. Connecting plate; 151. Connecting lug; 16. Shaft sleeve; 17. Reserved hole; 18. Support pad. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Please see Figure 1-5 As shown, this utility model is an articulated shield tunnel trolley sleeper, including a sleeper body 1 and a tunnel segment 3. The sleeper body 1 is fixedly installed on the inner side of the tunnel segment 3. A trolley guide rail 4 is fixedly installed on the upper end of the sleeper body 1, and the trolley body 2 travels on the trolley guide rail 4.

[0035] The sleeper body 1 includes a sleeper frame 11 that fits against the inner wall of the tunnel segment 3. Two sets of rotating sleeves 13 are fixedly installed on the upper end of the sleeper frame 11 near the inner wall of the tunnel segment 3. A connecting plate 15 is rotatably installed on the rotating sleeve 13 through a pin 14. The connecting plate 15 is fixedly installed on the tunnel segment 3.

[0036] In an optional embodiment, the side of the sleeper frame 11 closest to the segment 3 is an arc-shaped base plate that mates with the inner circumference of the segment 3.

[0037] It should be noted that the curved base plate ensures a tighter fit between the sleeper frame 11 and the segment 3, resulting in greater stability during the installation of the sleeper body 1.

[0038] In an optional embodiment, a support pad 18 is fixedly provided on the side of the sleeper frame 11 near the segment 3.

[0039] It should be noted that the support pad 18 improves the overall connection strength of the entire sleeper body 1.

[0040] In an optional embodiment, a shaft sleeve 16 is fixedly provided on one side of the connecting plate 15, and the shaft sleeve 16 is rotatably sleeved on the outer periphery of the pin 14.

[0041] It should be noted that the design of the shaft sleeve 16 ensures greater stability of the rotating installation of the connecting plate 15 and improves the overall strength of the rotating installation.

[0042] In an optional embodiment, a stop 12 for limiting the trolley guide rail 4 is fixedly provided at the upper end of the sleeper frame 11.

[0043] It should be noted that the setting of the stop 12 actually affects the stability of the trolley guide rail 4 during installation.

[0044] In an optional embodiment, the inner wall of the segment 3 is provided with two sets of mounting grooves 31 for mounting the connecting plate 15.

[0045] It should be noted that the mounting groove 31 fits snugly against the connecting plate 15 to enhance the uniformity of force distribution.

[0046] In an optional embodiment, a bent bolt 32 is fixedly embedded in the mounting groove 31, with both ends of the bent bolt 32 extending out of the surface of the mounting groove 31. The connecting plate 15 is provided with a reserved hole 17 that mates with the bent bolt 32, and the connecting plate 15 is fixedly mounted on the mounting groove 31 by a nut.

[0047] It should be noted that when the uneven load on both sides of the trolley causes the sleeper frame 11 to move due to the asymmetrical arrangement on one side, the bending bolt 32 connected to the tunnel segment 3 by the rotating connecting plate 15 forms a fixed connection, which transmits the uneven load to the tunnel segment 3 and effectively prevents the trolley from deflecting.

[0048] In an optional embodiment, the bottom of the sleeper frame 11 is provided with anti-slip texture to increase friction with the tunnel floor.

[0049] It should be noted that the anti-slip texture enhances the positioning reliability of the sleeper frame 11.

[0050] In an optional embodiment, both sides of the connecting plate 15 are provided with connecting lugs 151 that cooperate with and fit against the surface of the mounting groove 31, and the surface of the mounting groove 31 is provided with a wear-resistant coating.

[0051] It should be noted that the connecting lug 151 improves the stability of the connecting plate 15 during installation, and the wear-resistant coating reduces the wear of the mounting groove 31.

[0052] In an optional embodiment, the support pad 18 is made of an elastic material for absorbing vibrations during the operation of the trolley body 2.

[0053] It should be noted that the elastic support pad 18 has the effect of buffering vibration and plays a role in protecting the tunnel segment 3.

[0054] A further technical solution of this utility model is as follows: the sleeper frame 11, the stop block 12, and the rotating sleeve 13 are welded together to form a fixed connection, constituting a stable support base. The connecting plate 15 is connected to the rotating sleeve 13 by a pin 14 to form a rotatable hinge connection, allowing it to swing around the sleeper frame 11 at a certain angle. The connecting plate 15 is fixedly connected to the tunnel segment 3 by a bent bolt 32 through a pre-drilled hole 17, and the guide rail for the trolley is arranged on the sleeper frame 11. When the trolley guide rail 4 for the trolley body 2 is arranged on the sleeper frame 11, and when the trolley body 2 is asymmetrically arranged on one side, causing uneven load on both sides and resulting in movement of the sleeper frame 11, the bent bolt connected to the tunnel segment 3 by the rotating connecting plate 15 forms a fixed connection, allowing the uneven load to be transmitted to the tunnel segment 3, thereby preventing the trolley body 2 from deflecting due to uneven load on both sides during tunneling.

[0055] 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 hinged shield jumbo tie, characterized by It includes a sleeper body (1) and a tunnel segment (3). The sleeper body (1) is fixedly installed on the inner side of the tunnel segment (3). A trolley guide rail (4) is fixedly installed on the upper end of the sleeper body (1). A trolley body (2) travels on the trolley guide rail (4). The sleeper body (1) includes a sleeper frame (11) that fits against the inner wall of the tube segment (3). Two sets of rotating sleeves (13) are fixedly installed on the upper end of the sleeper frame (11) near the inner wall of the tube segment (3). A connecting plate (15) is rotatably installed on the rotating sleeve (13) through a pin (14). The connecting plate (15) is fixedly installed on the tube segment (3).

2. The articulated track tie for a shield jumbo according to claim 1, characterized in that The side of the sleeper frame (11) closest to the segment (3) is an arc-shaped base plate that matches the inner circumference of the segment (3).

3. The articulated track tie for a shield jumbo according to claim 2, wherein The sleeper frame (11) is fixedly provided with a support pad (18) on the side near the segment (3).

4. The articulated track tie for a shield jumbo as claimed in claim 1, wherein A shaft sleeve (16) is fixedly provided on one side of the connecting plate (15), and the shaft sleeve (16) is rotatably sleeved on the outer circumference of the pin (14).

5. The articulated track tie for a shield jumbo according to claim 1, wherein The upper end of the sleeper frame (11) is fixedly provided with a stop (12) for limiting the guide rail (4) of the trolley.

6. The articulated track tie for a shield jumbo according to claim 1, wherein The inner wall of the tube segment (3) is provided with two sets of mounting grooves (31) for mounting the connecting plate (15).

7. The articulated track tie for a shield jumbo according to claim 6, wherein A bent bolt (32) is fixedly embedded in the mounting groove (31). Both ends of the bent bolt (32) extend out of the surface of the mounting groove (31). The connecting plate (15) is provided with a reserved hole (17) that matches the bent bolt (32) and is fixed in the mounting groove (31) by a nut.

8. The articulated track tie for a shield jumbo according to claim 2, wherein The bottom of the sleeper frame (11) is provided with anti-slip texture to increase friction with the tunnel floor.

9. The articulated track tie for a shield jumbo as claimed in claim 6, wherein Both sides of the connecting plate (15) are provided with connecting lugs (151) that cooperate with the mounting groove (31) and fit against the surface of the mounting groove (31).

10. The articulated track tie for a shield jumbo as claimed in claim 3, wherein The support pad (18) is made of an elastic material used to absorb vibrations during the operation of the trolley body (2).

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