Tunnel pipeline dismounting trolley

Abstract

The utility model provides a tunnel pipeline dismounting trolley, and belongs to the field of tunnel pipeline dismounting devices. The tunnel pipeline disassembling trolley comprises a trolley body and a walking device arranged below the trolley body, the walking device comprises a mounting frame and a wheel assembly hinged to the lower end of the mounting frame, and the walking device further comprises an angle adjusting telescopic driving device with the two ends hinged to the mounting frame and the wheel assembly correspondingly. A telescopic supporting structure used for supporting the vehicle body is further arranged below the vehicle body and comprises a fixed body fixedly connected with the vehicle body and a telescopic body matched with the fixed body in an up-down guiding mode, and a lifting telescopic driving device is connected between the telescopic body and the fixed body. The telescopic supporting structure capable of supporting the vehicle body is additionally arranged below the vehicle body, so that angle adjustment of the traveling wheels can be completed smoothly and conveniently, and the traveling wheels are prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the field of tunnel pipeline disassembly devices, in particular to a tunnel pipeline disassembly trolley and a traveling device thereof. Background Art

[0002] During tunnel construction, pipes are installed on the tunnel's inner walls to transport water, gas, and other slurry materials to the tunnel boring machine. These pipes need to be removed after tunnel construction is completed. Traditional removal methods require hanging a sling from the tunnel's top and manually removing the pipes using a combination of slings, steel pipes, and crowbars, resulting in low removal efficiency.

[0003] An existing Chinese utility model patent, authorized with publication number CN212127333U, discloses a slurry pipeline removal device. The device comprises a vehicle body and a hoisting device mounted on the vehicle body. The hoisting device includes a fixed bracket and an electric hoist mounted on the fixed bracket. Once the pipeline is removed, the hoisting device can be directly hoisted into the vehicle body. This method improves efficiency compared to traditional methods, as it eliminates the need for hanging ropes within the tunnel. However, once the vehicle is fully loaded, it must be unloaded outside the tunnel, limiting efficiency. Furthermore, the slurry pipeline removal device lacks a platform for ascending to the air duct at the top of the tunnel, making removal difficult.

[0004] The existing Chinese utility model patent with authorization announcement number CN205315041U discloses a trolley for dismantling and recovering auxiliary belt conveyors and air ducts during tunnel construction. The trolley has a doorframe-style body with two working platforms. The upper platform is equipped with a ladder for removing air ducts, and the lower platform is equipped with a collection cage for collecting and temporarily storing accessories and pipes. The bottom of the upper platform is equipped with a movable lifting device to lift the removed pipes and accessories into the collection cage for temporary storage. When the collection cage is full, a transport vehicle travels under the trolley. The lifting device can lift the empty collection cage from the transport vehicle onto the platform, and lift the full collection cage from the platform onto the transport vehicle for transportation out of the tunnel. The trolley provides a larger working platform for operators to remove pipes in the tunnel, facilitating their operations and enabling continuous dismantling operations, effectively improving dismantling efficiency.

[0005] The trolleys mentioned above have running gear capable of moving along the tunnel. These running gears are steel wheels and run on steel rails. However, during tunnel construction, the steel rails, which provide support and guidance for the accompanying trailers, need to be rotated. Therefore, in the later stages of tunnel construction, most sections of the tunnel are railless. Moreover, the tracks required for later traffic have not yet been laid. Therefore, trolleys equipped with steel wheels are not suitable for dismantling pipelines in tunnels.

[0006] If the above-mentioned trolley is equipped with rubber wheels so that it can travel without relying on rails, the trolley still faces the problem that the inner wall of the tunnel is circular. Therefore, in order to prevent the rubber wheel from being damaged by the bias force, the rubber wheel needs to be arranged at an angle so that the rubber wheel is always perpendicular to the inner wall of the tunnel. When the diameter of the tunnel is different, the inclination angle of the rubber wheel is also different. In order to achieve this purpose, the Chinese utility model patent with authorization announcement number CN211391510U discloses a traveling frame for a trackless construction work vehicle, in which the wheel cover (i.e., wheel seat) for mounting the traveling wheel in the traveling frame is hinged to the lower end of the support rod (i.e., mounting frame), and the support rod and the wheel cover are also connected by an oil cylinder in a hinged manner, so that the angle of the traveling wheel can be adjusted according to different usage requirements.

[0007] In addition, the trolley faces the following problems: when entering a tunnel, the running wheels need to be adjusted from a vertical position to an inclined position, and when exiting a tunnel, the running wheels need to be adjusted from an inclined position to a vertical position. If the trolley using the above-mentioned running bracket directly adjusts the running wheel angle, on the one hand, due to the heavy trolley or heavy load, the oil cylinder controlling the running wheel angle will be unable to complete the adjustment operation due to the large force applied; on the other hand, the running wheels will be subjected to large friction during the adjustment process, which can easily cause damage. Utility Model Content

[0008] The purpose of this utility model is to provide a tunnel pipeline disassembly trolley to solve the technical problems in the prior art that the oil cylinder for controlling the angle of the running wheels of the trolley during the process of entering and exiting the tunnel cannot be adjusted smoothly due to the large force applied, and the running wheels are easily damaged due to large friction.

[0009] To achieve the above-mentioned purpose, the technical solution of the tunnel pipeline disassembly trolley provided by the present invention is:

[0010] A tunnel pipeline disassembly trolley includes a vehicle body and a traveling device arranged under the vehicle body, the traveling device includes a mounting frame and a wheel assembly hinged at the lower end of the mounting frame, the traveling device also includes an angle-adjustable telescopic drive device with both ends hinged to the mounting frame and the wheel assembly respectively, and a telescopic support structure for supporting the vehicle body is also provided under the vehicle body, the telescopic support structure includes a fixed body fixedly connected to the vehicle body and a telescopic body cooperated with the upper and lower guides of the fixed body, and a lifting and telescopic drive device is connected between the telescopic body and the fixed body.

[0011] As a further improvement, each walking device is equipped with at least one telescopic support structure, and the walking device and the corresponding telescopic support structure form a walking unit.

[0012] As a further improvement, the walking unit includes two telescopic support structures, which are respectively located at the front and rear sides of the corresponding walking device.

[0013] As a further improvement, the telescopic support structure further includes a support leg, which is hinged to the lower end of the telescopic body via a pin, and the axial direction of the pin is in the same direction as the front-rear direction.

[0014] As a further improvement, the support leg includes a support plate for pressing against the tunnel wall or the ground and a hinged seat located on the upper side of the support plate.

[0015] As a further improvement, the mounting frame is a structure that can be extended and retracted up and down. The mounting frame includes a fixed frame body fixedly connected to the vehicle body and a retractable frame body that cooperates with the upper and lower guides of the fixed frame body. A retractable drive device is connected between the fixed frame body and the retractable frame body.

[0016] As a further improvement, the wheel assembly is connected to the mounting frame via a ball joint.

[0017] As a further improvement, the mounting frame includes a main body and a cantilever frame fixedly arranged on a lateral side of the lower end of the main body, one end of the angle adjustment telescopic drive device is hinged to the end of the cantilever frame, and the other end is hinged to the wheel assembly.

[0018] As a further improvement, the wheel assembly includes a wheel seat and a walking wheel rotatably mounted on the wheel seat. The wheel seat is hinged to the mounting frame. A cantilever frame is fixedly provided on one side of the wheel seat. One end of the angle adjustment telescopic drive device is hinged to the end of the cantilever frame, and the other end is hinged to the mounting frame.

[0019] As a further improvement, the wheel assembly includes a wheel seat and a traveling wheel rotatably mounted on the wheel seat, the wheel seat is hinged to the mounting frame, and a driving structure for driving the traveling wheel to rotate is fixedly mounted on the wheel seat.

[0020] The tunnel pipeline disassembly trolley provided by the present invention is an improvement over the prior art. By adding a telescopic support structure capable of supporting the vehicle body, the vehicle body can be propped up by the telescopic support structure when the angle of the wheel assembly needs to be adjusted, thereby preventing the angle adjustment telescopic drive device from being subjected to a large force that would prevent the wheel assembly from being unable to adjust the angle. Furthermore, since the wheel assembly can be separated from the tunnel wall or the ground for angle correction, the running wheels of the wheel assembly can be prevented from being subjected to large friction and thus wearing out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of Example 1 of the tunnel pipeline disassembly trolley of the present utility model;

[0022] Figure 2This is a schematic diagram of assisting workers in lifting pipelines in Example 1 of the tunnel pipeline disassembly trolley of the present invention;

[0023] Figure 3 This is a schematic diagram of the hoisting storage cage in Example 1 of the tunnel pipeline disassembly trolley of the present invention;

[0024] Figure 4 This is a schematic structural diagram of the traveling device of Example 1 of the tunnel pipeline disassembly trolley of the present invention;

[0025] Figure 5 This is a structural schematic diagram of the telescopic support structure of Example 1 of the tunnel pipeline disassembly trolley in the present utility model;

[0026] Figure 6 This is a schematic diagram of the angle adjustment of the traveling wheels in Example 1 of the tunnel pipeline disassembly trolley of the present invention.

[0027] Description of reference numerals:

[0028] 1. Vehicle frame; 11. Upper working platform; 12. Lower working platform; 13. Vertical frame; 14. Ladder; 2. Crane; 3. Storage cage; 4. Guide rails; 5. Lifting device; 6. Telescopic support structure; 61. Fixed body; 62. Telescopic body; 63. Lifting and telescopic drive device; 64. Support leg; 641. Support plate; 642. Articulated seat; 7. Travel device; 71. Fixed frame; 72. Telescopic frame; 73. Telescopic drive device; 74. Cantilever frame; 75. Wheel seat; 76. Travel wheel; 77. Drive motor; 78. Angle adjustment and telescopic drive device; 8. Transport vehicle; 9. Tunnel wall. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the embodiments.

[0030] In order to solve the problems in the prior art, the basic concept of the present invention is to add a telescopic support structure under the vehicle body that can support the vehicle body, thereby facilitating smooth adjustment of the angle of the running wheels.

[0031] Specific embodiment 1 of the tunnel pipeline disassembly trolley provided by the utility model:

[0032] A tunnel pipeline disassembly trolley, see attached Figure 1 , including a vehicle body and a walking unit arranged under the vehicle body.

[0033] The vehicle body comprises a steel frame 1, which includes an upper working platform 11, a lower working platform 12, and a vertical frame 13 connecting the upper and lower working platforms 11 and 12. A ladder 14 is provided between the lower and upper working platforms 12 for operators to ascend and descend. The upper working platform 11 allows operators to remove the air duct located at the top of the tunnel. Once removed, the air duct can be temporarily stored on the upper working platform 11. A crane 2 is also installed on the upper working platform 11, which can be used to lower the air duct. A storage cage 3 for removed pipes and accessories can be placed on the lower working platform 12.

[0034] See attached Figure 2 and attached Figure 3 The lower working platform 12 is divided into two parts, and the space between the two parts is a passage for the transport vehicle 8 to pass through. A guide rail 4 is fixedly provided on the lower side of the upper working platform 11, and a lifting device 5 that can move along the guide rail 4 is provided on the guide rail 4. The lifting device 5 can assist the operator to lift the disassembled pipeline into the storage cage 3, and can also transfer the storage cage 3 between the lower working platform 12 and the transport vehicle 8. The lifting device 5 is a prior art and will not be described here.

[0035] The traveling unit includes a traveling device 7 and two telescopic supporting structures 6 , and the two telescopic supporting structures 6 are respectively located at the front and rear sides of the traveling device 7 .

[0036] See attached Figure 4 The running device 7 includes a mounting frame and a wheel assembly located at the lower end of the mounting frame. The mounting frame includes a fixed frame body 71 fixedly connected to the vehicle body and a telescopic frame body 72 that cooperates with the upper and lower guides of the fixed frame body 71. A telescopic drive device 73 is connected between the fixed frame body 71 and the telescopic frame body 72. The fixed frame body 71 and the telescopic frame body 72 are both hollow structures and nested with each other. The telescopic drive device 73 is installed on the inner side of the fixed frame body 71 and the telescopic frame body 72. The wheel assembly includes a wheel seat 75 and a running wheel 76 rotatably mounted on the wheel seat 75. The wheel seat 75 is connected to the mounting frame in the form of a ball hinge. The ball hinge connection has higher stability and reliability and is conducive to bearing larger loads. In other embodiments, the wheel seat 75 can also be connected to the mounting frame through a hinge shaft, and the axial direction of the hinge shaft is in the same direction as the front and rear direction of the vehicle body.

[0037] The wheel assembly also includes a drive structure fixedly mounted on the wheel seat 75 for driving the travel wheel 76 to rotate. The drive structure is specifically a drive motor 77. By directly mounting the drive structure on the wheel seat 75, a transmission can be omitted, simplifying the overall structure. The drive structure is not limited to the drive motor 77, and in other embodiments, it can also be a hydraulic motor.

[0038] The fixed frame 71 and telescopic frame 72 form the main components of the mounting frame. A cantilever frame 74 is fixedly mounted on one lateral side of the lower end of the telescopic frame 72. An angle-adjustable telescopic drive 78 is hingedly mounted on the cantilever frame 74. The piston rod end of the angle-adjustable telescopic drive 78 is hingedly connected to the wheel seat 75. Specifically, the cantilever frame 74 is located outside the corresponding telescopic frame 72. Therefore, when the angle-adjustable telescopic drive 78 is shortened, the corresponding running wheel 76 deflects outward. This ensures that the wheel seat 75 has a sufficiently long power arm during adjustment and rotation, thereby reducing the load on the angle-adjustable telescopic drive 78.

[0039] See attached Figure 5 The telescopic support structure 6 comprises a fixed body 61 fixedly connected to the vehicle body and a telescopic body 62 that cooperates with the fixed body 61 in a vertically guided manner. A lifting and telescoping drive device 63 is connected between the telescopic body 62 and the fixed body 61. Both the fixed body 61 and the telescopic body 62 are hollow structures and fit into each other. The lifting and telescoping drive device 63 is installed inside the fixed body 61 and the telescopic body 62.

[0040] The telescopic support structure 6 also includes a support leg 64 disposed at the lower end of the telescopic body 62. The support leg 64 comprises a support plate 641 for contact with the tunnel wall 9 or the ground, and an articulated seat 642 located above the support plate 641. The articulated seat 642 is hinged to the lower end of the telescopic body 62 via a pin, with the axis of the pin oriented in the same direction as the front-to-back direction. The support leg 64 can be adaptively adjusted based on the angle of the tunnel wall 9 to increase the contact area with the tunnel wall 9 and provide more stable support. The support leg 64 can also be configured in different ways based on actual needs, such as configuring the support plate 641 to be a curved plate with the same curvature as the tunnel wall 9.

[0041] See attached Figure 6 When the tunnel pipeline disassembly trolley enters and exits the tunnel, first, each telescopic support structure 6 is extended and the support legs 64 are pressed against the tunnel wall 9 or the ground; then the mounting frames of each traveling device 7 are shortened, so that each traveling wheel 76 leaves the tunnel wall 9 or the ground; then the angle-adjusting telescopic drive device 78 is used to adjust the inclination angle of the traveling wheel 76. After the traveling wheel 76 is adjusted to a suitable angle, the mounting frames of each traveling device 7 are extended, so that the traveling wheel 76 contacts the tunnel wall 9 or the ground again; finally, each telescopic support structure 6 is shortened, and the tunnel pipeline disassembly trolley can continue to move.

[0042] Since the entire walking device 7 is suspended in the air and is not affected by other external forces during the angle adjustment of the walking wheel 76, the load on the angle adjustment telescopic drive device 78 is relatively small, ensuring that the angle of the walking wheel 76 can be adjusted smoothly, and the walking wheel 76 is protected from large friction during the adjustment process, thereby preventing the walking wheel 76 from being damaged.

[0043] During the entire process of adjusting the angle of the walking wheel 76, the walking device 7 and the telescopic support structure 6 alternately support the vehicle body, and since both the walking device 7 and the telescopic support structure 6 can be extended and retracted up and down, the height of the vehicle body will not increase or decrease after alternating support. On the one hand, it is beneficial to adjust the angle of the walking wheel 76 at any time during construction without affecting normal construction. On the other hand, it can reduce the load on the cylinder and facilitate the completion of alternating support.

[0044] In this embodiment, each traveling device 7 is equipped with a telescopic support structure 6, which can ensure the stability of the traveling device 7 when adjusting the traveling wheels 76. The telescopic support structure 6 is arranged on the front and rear sides of the corresponding traveling device 7, so that the traveling device 7 can be supported at the front and rear sides, so that the angle of the traveling wheels 76 of one of the traveling devices 7 can be adjusted or repaired separately as needed.

[0045] The method of using the tunnel pipeline disassembly trolley to disassemble the pipeline is as follows: for the pipelines on the top of the tunnel, such as the air ducts, they can be first disassembled by the operator and then stacked on the upper working platform 11. When the transport vehicle 8 drives to the bottom of the automatic pipeline disassembly trolley in the tunnel, the crane 2 can be used to lift the air duct to the transport vehicle 8; for the grouting pipeline in the middle of the tunnel, the operator can first connect the lifting device of the lifting device 5 to the disassembled pipeline, and then lift the pipeline upward to remove the pipeline from the pipeline bracket. Finally, with the assistance of the operator, the lifting device 5 lifts the pipeline into the storage cage 3. After the transport vehicle 8 drives to the bottom of the automatic pipeline disassembly trolley in the tunnel, the lifting device 5 is used to transfer the empty storage cage 3 on the transport vehicle 8 to the lower working platform 12, and the full storage cage 3 on the lower working platform 12 is transferred to the transport vehicle 8, and finally the transport vehicle 8 is transferred to the outside of the tunnel.

[0046] The telescopic drive device, the angle adjustment telescopic drive device and the lifting telescopic drive device in this embodiment are all oil cylinders. In other embodiments, they can also be air cylinders or electric push rods, which will not be described in detail here.

[0047] Specific embodiment 2 of the tunnel pipeline disassembly trolley provided by the utility model:

[0048] This embodiment is based on Example 1, and differs from Example 1 in that, in this embodiment, no cantilever frame is provided on the mounting frame. In this embodiment, a cantilever frame is provided on the wheel seat, and one end of the angle adjustment telescopic drive device is hinged to the end of the cantilever frame, and the other end is hinged to the mounting frame.

[0049] Specific embodiment 3 of the tunnel pipeline disassembly trolley provided by the utility model:

[0050] This embodiment is based on Example 1, and differs from Example 1 in that the angle adjustment telescopic drive device in this embodiment is installed on the inner side of the telescopic frame. For the specific installation method, please refer to the installation form of the oil cylinder between the wheel cover and the support rod in the Chinese utility model patent with authorization announcement number CN211391510U, which will not be repeated here.

[0051] Specific embodiment 4 of the tunnel pipeline disassembly trolley provided by the utility model:

[0052] This embodiment is based on the first embodiment, and differs from the first embodiment in that the mounting frame in this embodiment is a non-retractable structure.

[0053] When the tunnel pipeline disassembly trolley in this embodiment needs to adjust the angle of the running wheels, the telescopic support structure is first extended, and after the support legs are pressed against the tunnel wall or the ground, the telescopic support structure continues to extend, so that the vehicle body is lifted and the running wheels leave the tunnel wall or the ground; then the angle of the running wheels is adjusted to a suitable position; finally, the telescopic support structure is shortened to lower the vehicle body, and after the running wheels re-contact the tunnel wall or the ground, the telescopic support structure continues to shorten until it leaves the tunnel wall or the ground.

[0054] Specific embodiment 5 of the tunnel pipeline disassembly trolley provided by the utility model:

[0055] This embodiment is based on Example 1, and differs from Example 1 in that the traveling unit in this embodiment has only one telescopic support structure. Specifically, the traveling unit located at the front of the vehicle body has its telescopic support structure in front of the traveling device; the traveling unit located at the rear of the vehicle body has its telescopic support structure located behind the traveling device.

[0056] Specific embodiment 6 of the tunnel pipeline disassembly trolley provided by the utility model:

[0057] This embodiment is based on Example 1, and differs from Example 1 in that, in this embodiment, not only does the traveling unit have a telescopic support structure, but a telescopic support structure is also provided at other positions below the vehicle body, such as the middle position of the vehicle body, thereby improving the stability of the vehicle body after being supported.

[0058] Specific embodiment 7 of the tunnel pipeline disassembly trolley provided by the utility model:

[0059] This embodiment is based on Example 1, and differs from Example 1 in that the telescopic support structure in this embodiment does not correspond to the walking device. Specifically, in this embodiment, three telescopic support structures are provided, respectively at the front middle part and the left and right sides of the rear end below the vehicle body.

[0060] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments without inventive effort, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tunnel pipeline disassembly trolley, comprising a vehicle body and a traveling device disposed below the vehicle body, the traveling device comprising a mounting frame and a wheel assembly movably connected to the lower end of the mounting frame, the traveling device further comprising an angle-adjustable telescopic drive device with two ends respectively connected to the mounting frame and the wheel assembly, characterized in that: A telescopic support structure for supporting the vehicle body is also provided under the vehicle body. The telescopic support structure includes a fixed body fixedly connected to the vehicle body and a telescopic body coordinated with the upper and lower guides of the fixed body. A lifting and telescopic driving device is connected between the telescopic body and the fixed body.

2. The tunnel pipeline disassembly trolley according to claim 1, characterized in that: Each walking device is equipped with at least one telescopic support structure, and the walking device and the corresponding telescopic support structure form a walking unit.

3. The tunnel pipeline disassembly trolley according to claim 2, characterized in that: The walking unit includes two telescopic support structures, which are respectively located at the front and rear sides of the corresponding walking device.

4. The tunnel pipeline disassembly trolley according to any one of claims 1 to 3, characterized in that: The telescopic support structure also includes a support leg, which is hinged to the lower end of the telescopic body through a pin, and the axial direction of the pin is in the same direction as the front-rear direction.

5. The tunnel pipeline disassembly trolley according to claim 4, characterized in that: The support leg comprises a support plate for pressing against the tunnel wall or the ground and a hinged seat located on the upper side of the support plate.

6. The tunnel pipeline disassembly trolley according to any one of claims 1 to 3, characterized in that: The mounting frame is a structure that can be telescoped up and down. The mounting frame includes a fixed frame body fixedly connected to the vehicle body and a telescopic frame body that cooperates with the fixed frame body in the upper and lower guides. A telescopic drive device is connected between the fixed frame body and the telescopic frame body.

7. The tunnel pipeline disassembly trolley according to any one of claims 1 to 3, characterized in that: The wheel assembly is connected to the mounting frame via a ball joint.

8. The tunnel pipeline disassembly trolley according to any one of claims 1 to 3, characterized in that: The mounting frame includes a main body and a cantilever frame fixedly arranged on a lateral side of the lower end of the main body. One end of the angle adjustment telescopic drive device is hinged to the end of the cantilever frame, and the other end is hinged to the wheel assembly.

9. The tunnel pipeline disassembly trolley according to any one of claims 1 to 3, characterized in that: The wheel assembly includes a wheel seat and a traveling wheel rotatably mounted on the wheel seat. The wheel seat is hinged to the mounting frame. A cantilever frame is fixedly provided on one side of the wheel seat. One end of the angle adjustment telescopic drive device is hinged to the end of the cantilever frame, and the other end is hinged to the mounting frame.

10. The tunnel pipeline disassembly trolley according to any one of claims 1 to 3, characterized in that: The wheel assembly comprises a wheel seat and a traveling wheel rotatably mounted on the wheel seat. The wheel seat is hinged to the mounting frame. A driving structure for driving the traveling wheel to rotate is fixedly mounted on the wheel seat.

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