Shield trolley capable of rapidly changing clear distance

Abstract

The utility model discloses a shield trolley capable of rapidly changing clear distance, which relates to the technical field of tunnel construction and comprises a left frame and a right frame which are respectively arranged on two sides of a tunnel and can walk in the tunnel. The left frame and the right frame are detachably connected; the fixed end and the output end of the jacking device are detachably connected to the left frame and the right frame respectively. By the adoption of the scheme, the clear distance between the left frame and the right frame can be rapidly adjusted in a detachable connection mode and through the jacking device.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a shield tunneling trolley that can quickly change the clearance. Background Technology

[0002] The tunnel boring machine (TBM) trolley is an auxiliary equipment for the TBM, mainly composed of a platform, track, drive unit, hydraulic management system, etc. It connects the TBM and the subsequent trolley into one unit through a traction rod. The number of trolleys depends mainly on the size and number of equipment to be installed and the length of the horizontal transport convoy in the tunnel. Generally, there are 4 to 6 sections, with some having only 3 sections and others having 7 to 8 sections. Its main function is to support and transmit the propulsion force and torque of the TBM, ensuring the stability and accuracy of the TBM during underground construction. The tunnel boring machine (TBM) trolley supports the TBM, which must withstand significant thrust and torque during construction to ensure stable operation. Through its drive unit and hydraulic system, the TBM trolley transmits the thrust and torque to the bulldozer blades and the tunnel head, propelling the TBM forward. A workstation is located on the TBM trolley platform, providing workers with a relatively safe and stable workspace, helping to reduce labor intensity and the risk of occupational diseases. The TBM trolley not only ensures smooth construction but also improves project quality and efficiency, while reducing risks and accidents.

[0003] Traditional tunnel boring machine (TBM) trolleys usually require their spacing to be adjusted in the factory, and the TBM needs to be stopped for coordination. This keeps the construction site in a standstill, resulting in slow recovery and delays in the construction period. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention aims to provide a tunnel boring machine trolley that can quickly change the clearance. This solution enables rapid adjustment of the clearance between the left and right frames through a detachable connection and a lifting device.

[0005] This utility model is achieved through the following technical solution:

[0006] A tunnel boring machine trolley that can rapidly change clearance includes:

[0007] The left and right frames are located on both sides of the tunnel, and both the left and right frames can move inside the tunnel; the left and right frames are detachably connected.

[0008] A lifting device, wherein the fixed end and the output end of the lifting device are detachably connected to the left frame and the right frame, respectively.

[0009] Compared to existing technologies, traditional tunnel boring machine (TBM) trolleys often require factory adjustments to their spacing, necessitating the shutdown of the TBM and resulting in a halt to construction, slow recovery, and project delays. This invention provides a TBM trolley capable of rapidly adjusting the clearance between the left and right frames. This solution utilizes a detachable connection and a lifting device to quickly adjust the clearance between the left and right frames, thereby improving construction efficiency and shortening the construction period. Specifically, the design includes left and right frames, each equipped with a walking device at the bottom for movement within the tunnel. The left and right frames are detachably connected. To change the clearance between the left and right frames, the connection is removed, and a lifting device is installed between them. The lifting device can be an electric or hydraulic telescopic cylinder with sufficient thrust, and the lifting direction is preferably horizontal. After connecting the lifting device, controlling its upward movement increases the clearance between the left and right frames. After adjustment, the lifting device is removed, and the left and right frames are reconnected.

[0010] A further improvement involves ensuring close contact between the frame and the tunnel segments, achieving a suitable bearing capacity for movement. Both the left and right frames have adjustable components on their sides closest to the tunnel sidewall. Each adjustable component has a wheel for movement along the tunnel sidewall at its tunnel-facing end. The length of the adjustable component is variable. In this design, the adjustable component can be implemented using telescopic adjustment or a rotary threaded connection. The wheel can abut against the tunnel sidewall and move along it. Therefore, the wheel can be adjusted according to changes in the distance between the frame and the tunnel sidewall by varying the length of the adjustable component, ensuring the wheel remains in contact with the tunnel segments and achieving a suitable bearing capacity for movement.

[0011] A further proposed solution, as a specific structure of an adjusting component, involves adjusting bolts. Both the left and right frames have screw holes on the side closest to the tunnel sidewall, and the adjusting bolts are threadedly connected to the screw holes.

[0012] In a further step, to avoid drilling screw holes in the frame and to make the connection points closer to the tunnel sidewall to improve connection stability, both the left and right frames can be detachably connected to a balance walking beam on the side closest to the tunnel sidewall. The balance walking beam extends toward the tunnel sidewall, and the screw holes are drilled on the balance walking beam.

[0013] As a stable mode of movement, along the length of the tunnel, the left and right frame sidewalls are each equipped with a number of balancing walking beams, and each balancing walking beam is provided with an adjusting bolt.

[0014] In a further embodiment, to facilitate increasing the jacking force and improve stability during the adjustment process, the jacking device is a plurality of devices, which are evenly distributed in the upper and lower parts between the left and right frames.

[0015] As a redundancy solution, the lifting device employs a hydraulic cylinder.

[0016] A further solution, in order to achieve a detachable connection and facilitate the provision of a top operating platform, includes a top platform that is detachably connected between the tops of the left and right frames.

[0017] In a further step, to improve the connection strength of the top platform, diagonal braces are provided between the bottom of one end of the top platform and the left frame, and between the bottom of the other end of the top platform and the right frame.

[0018] A further solution involves connecting both ends of the top platform to the left and right frames via pads to fill the gap. Specifically, pads are placed between the top platform ends and the frames to fill the gap; additionally, pads can also be placed on the underside of the top platform ends, ensuring that the tops of the left and right frames 1 and 2 are on the same horizontal plane as the top of the top platform 9.

[0019] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0020] This utility model provides a shield tunneling trolley for rapidly changing the clearance. Using this solution, the clearance between the left and right frames can be quickly adjusted through a detachable connection and a lifting device. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 A schematic diagram of the structure after the net distance between the left and right frames of this utility model is reduced;

[0023] Figure 2 A schematic diagram of the structure after the net distance between the left and right frames of this utility model is increased;

[0024] Figure 3 A schematic diagram showing the position of the lifting device provided by this utility model.

[0025] The attached diagram shows the markings and corresponding component names:

[0026] 1-Left frame, 2-Right frame, 3-Padded block, 4-Diagonal brace, 5-Balance walking beam, 6-Walking wheel, 7-Adjusting component, 8-Lifting device, 9-Top platform. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0028] Example:

[0029] This embodiment provides a tunnel boring machine trolley that can quickly change the clearance, such as... Figures 1-3 As shown, it includes:

[0030] The left frame 1 and right frame 2 are respectively located on both sides of the tunnel, and both the left frame 1 and right frame 2 can move inside the tunnel; the left frame 1 and right frame 2 are detachably connected.

[0031] The lifting device 8 has its fixed end and output end detachably connected to the left frame 1 and the right frame 2, respectively.

[0032] Compared to existing technologies, traditional tunnel boring machine (TBM) trolleys often require factory adjustments to their spacing, necessitating the shutdown of the TBM and resulting in a halt to construction at the site, slow recovery, and project delays. This invention provides a TBM trolley capable of rapidly adjusting the clearance between the left and right frames. This solution utilizes a detachable connection and a lifting device 8 to quickly adjust the clearance between the left and right frames, thereby improving construction efficiency and shortening the construction period. Specifically, the design includes left and right frames 1 and 2, both equipped with walking devices at their bottoms for movement within the tunnel. The frames 2 are detachably connected; when it is necessary to change the clearance between the left frame 1 and the right frame 2, the connection between the left frame 1 and the right frame 2 is disconnected, and a lifting device 8 is installed between the left frame 1 and the right frame 2. The lifting device 8 can be a telescopic cylinder of electric or hydraulic type, which has sufficient jacking force, and the lifting direction of the lifting device 8 is preferably horizontal; after the connection of the lifting device 8 is completed, the lifting device 8 is controlled to lift, which can increase the clearance between the left frame 1 and the right frame 2. After the adjustment is completed, the lifting device 8 is removed, and the left frame 1 and the right frame 2 are connected again.

[0033] In this embodiment, to ensure close contact between the frame and the tunnel segments and achieve a walking force-bearing state, both the left frame 1 and the right frame 2 are equipped with adjusting members 7 on the side closest to the tunnel sidewall. The end of the adjusting member 7 facing the tunnel has a walking wheel 6 for walking on the tunnel sidewall; the length of the adjusting member 7 is variable. In this design, the adjusting member 7 can be implemented using telescopic adjustment or rotary threaded connection, etc. The walking wheel 6 can abut against the tunnel sidewall and move; therefore, according to the change in the distance between the frame and the tunnel sidewall, the length of the adjusting member 7 can be adjusted to ensure that the walking wheel 6 always abuts against the tunnel segments, allowing the frame to maintain close contact with the tunnel segments through the walking wheel 6 and achieve a walking force-bearing state.

[0034] In this embodiment, as a specific structure of the adjusting component 7, the adjusting component 7 adopts an adjusting bolt. The left frame 1 and the right frame 2 are both provided with screw holes on the side near the tunnel sidewall, and the adjusting bolt is threadedly connected to the screw holes.

[0035] In this embodiment, to avoid drilling screw holes in the frame and to facilitate the connection points being closer to the tunnel sidewall to improve connection stability, the left frame 1 and the right frame 2 can be detachably connected to the side of the tunnel sidewall with a balance walking beam 5. The balance walking beam 5 extends toward the tunnel sidewall, and the screw holes are drilled on the balance walking beam 5.

[0036] In this embodiment, as a stable walking method, along the length of the tunnel, the left frame 1 and the right frame 2 are each provided with a number of balanced walking beams 5, and each balanced walking beam 5 is provided with an adjusting bolt.

[0037] In this embodiment, in order to facilitate increasing the jacking force and improve the stability during the adjustment process, there are several jacking devices 8, which are evenly distributed in the upper and lower parts between the left frame 1 and the right frame 2.

[0038] As a redundancy solution, the lifting device 8 uses a hydraulic cylinder.

[0039] In this embodiment, in order to achieve a detachable connection and facilitate the provision of a top operating platform, a top platform 9 is detachably connected between the top of the left frame 1 and the top of the right frame 2.

[0040] In this embodiment, in order to improve the connection strength of the top platform 9, diagonal braces 4 are provided between the bottom of one end of the top platform 9 and the left frame 1, and between the bottom of the other end of the top platform 9 and the right frame 2.

[0041] In this embodiment, to fill the gap between the end of the top platform 9 and the frame, both ends of the top platform 9 are connected to the left frame 1 and the right frame 2 respectively via pads 3. Specifically, pads 3 are placed between the end of the top platform 9 and the frame to fill the gap; additionally, pads 3 can also be placed on the lower side of the end of the top platform 9, so that the left frame 1, the right frame 2, and the top of the top platform 9 are on the same horizontal plane.

[0042] Working principle:

[0043] When it is necessary to increase the spacing between trolleys, install steel balance walking beams 5 at the front, middle and rear three parts of the top side of the left frame 11 of the trolley where the spacing needs to be increased, and tighten them with bolts.

[0044] Install the steel balance walking wheel 6 with adjusting bolts at the end of the steel balance walking beam 5, adjust the adjusting bolts to make the steel balance walking wheel 6 in close contact with the tunnel lining segments and achieve the walking force state; in the same way, install the same number of steel balance walking beams 5 and steel balance walking wheels 6 at the corresponding positions of the right frame 2.

[0045] Four sets of hydraulic cylinders are placed at the upper and lower positions of the front and rear of the left frame 1 and the right frame 2, and extended to a sufficient length so that the two ends of the hydraulic cylinders abut against the sides of the left frame 1 and the right frame 2 respectively, supporting the hydraulic cylinders between the left frame 1 and the right frame 2.

[0046] Unscrew the bolts of the diagonal brace 4 and the top platform 9 respectively, and remove the diagonal brace 4 and the top platform 9 from the left frame 1 and the right frame 2, so that the left frame 1 and the right frame 2 are independent of each other and can be moved left and right to adjust the spacing.

[0047] Simultaneously adjust the six sets of adjusting bolts to move the steel balance traveling beams 5 of the left frame 1 and right frame 2 in opposite directions, widening the clear distance between the trolleys. At the same time, activate the hydraulic cylinder to extend it, pushing the steel balance traveling beams 5 outward to accommodate the increased clear distance between the trolleys. The hydraulic cylinder provides lateral thrust to the left frame 1 and right frame 2, balancing the thrust of the steel balance traveling wheels 6 and maintaining the force balance of the trolleys. Once the distance between the left frame and right frame 2 reaches the required adjustment distance, close the hydraulic cylinder, and the cylinder stops extending. Use bolts to lock the steel balance traveling beams 5 and steel balance traveling wheels 6 to prevent them from contracting inward under pressure, causing the trolleys to become unbalanced. Then, use bolts to install the appropriate length of pads 3, diagonal braces 4, and top platform 9 in their original positions, connecting the left frame 1 and right frame 2 into a whole, allowing the trolleys to continue working.

[0048] When it is necessary to reduce the distance between the trolleys, repeat the above steps and retract the hydraulic cylinders. When it is necessary to restore the trolleys to their normal state, adjust the cylinders and adjusting bolts to return the left frame 1 and right frame 2 to their original positions. Then, bolt the diagonal brace 4 and the top platform 9 to their original positions, and finally remove the steel balance walking beam 5, the steel balance walking wheel 6, and the hydraulic cylinders.

[0049] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A shield tunneling trolley for rapidly changing clearance, characterized in that, include: The left frame (1) and right frame (2) are respectively located on both sides of the tunnel, and both the left frame (1) and right frame (2) can move inside the tunnel. The left frame (1) and the right frame (2) are detachably connected; The lifting device (8) has its fixed end and output end detachably connected to the left frame (1) and the right frame (2), respectively.

2. The shield tunneling trolley for rapidly changing clearance according to claim 1, characterized in that, The left frame (1) and the right frame (2) are each equipped with an adjustment member (7) on the side closest to the tunnel sidewall. The end of the adjustment member (7) facing the tunnel is equipped with a walking wheel (6) for walking on the tunnel sidewall. The length of the adjustment member (7) is variable.

3. A shield tunneling trolley for rapidly changing clearance according to claim 2, characterized in that, The adjusting component (7) uses adjusting bolts. The left frame (1) and the right frame (2) are provided with screw holes on the side near the tunnel sidewall. The adjusting bolts are threadedly connected to the screw holes.

4. A shield tunneling trolley for rapidly changing clearance according to claim 3, characterized in that, The left frame (1) and the right frame (2) can be detachably connected to a balance walking beam (5) on the side closest to the tunnel sidewall. The balance walking beam (5) extends toward the tunnel sidewall, and the screw hole is opened on the balance walking beam (5).

5. A shield tunneling trolley for rapidly changing clearance according to claim 4, characterized in that, Along the length of the tunnel, the left frame (1) and the right frame (2) each have a number of balance walking beams (5) on their side walls, and each balance walking beam (5) is provided with an adjusting bolt.

6. A shield tunneling trolley for rapidly changing clearance according to claim 1, characterized in that, There are several lifting devices (8), and the lifting devices (8) are evenly distributed in the upper and lower parts between the left frame (1) and the right frame (2).

7. A shield tunneling trolley for rapidly changing clearance according to claim 1, characterized in that, The lifting device (8) uses a hydraulic cylinder.

8. A shield tunneling trolley for rapidly changing clearance according to claim 1, characterized in that, A top platform (9) is detachably connected between the top of the left frame (1) and the top of the right frame (2).

9. A shield tunneling trolley for rapidly changing clearance according to claim 8, characterized in that, Diagonal braces (4) are provided between the bottom of one end of the top platform (9) and the left frame (1), and between the bottom of the other end of the top platform (9) and the right frame (2).

10. A shield tunneling trolley for rapidly changing clearance according to claim 8, characterized in that, Both ends of the top platform (9) are connected to the left frame (1) and the right frame (2) respectively via pads (3).

Images