Natural gas pipeline continuous excavation and pipe distribution device

Abstract

The invention discloses a natural gas pipeline continuous excavation and pipe distribution device which comprises a walking assembly, the walking assembly comprises two first mounting frames, each first mounting frame is provided with two first transmission chain wheels, and every two matched first transmission chain wheels are in transmission connection through a walking crawler belt; the main machine frame assembly comprises a main machine frame, and the front side and the rear side of the main machine frame are fixedly connected with the two first mounting frames correspondingly; the excavation assembly is used for excavating the soil; the two-stage material throwing assembly is matched with the excavation assembly, and is used for conveying the excavated soil, so that the accumulation of the soil is avoided; the power control assembly is installed at the upper end of the main machine frame, and the power control assembly comprises a control box fixedly connected to the upper end of the main machine frame. According to the device, efficient and continuous excavation and pipe distribution construction operation can be achieved, the construction efficiency and safety are remarkably improved, and the construction cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of gas pipeline pipe laying, and in particular to a natural gas pipeline continuous excavation pipe laying device. Background Art

[0002] In the process of excavation and pipe laying of LNG pipelines, there are three main processes: open cut, pipe jacking and directional drilling. Among them, pipe jacking and directional drilling are mainly used in scenes such as crossing rivers and overlying structures, while open cut is generally used in general scenes. In the traditional open cut construction process of LNG long-distance pipelines, prefabricated pipelines are first brought into the site and roughly arranged on site according to the layout position. The connection and segment welding of the pipelines are carried out on one side of the trench. After welding is completed, earth excavation is carried out on the designed pipeline route to form a trench. Multiple pipe hoists or excavators are used to cooperate to move the welded pipeline sections into the trench. In this process, the lifting position and stability of the pipeline need to be accurately controlled, and attention should be paid to controlling the maximum curvature of the pipeline between multiple pipe hoists to avoid damage to the pipeline during lifting, moving and lowering. In the existing process, when the pipeline is brought into the site and welded, it must be located on the side of the trench to be excavated so as not to affect the excavation operation. This requires that sufficient area must be reserved on one side of the trench to be excavated, which occupies a large area and the workload of post-construction recovery will increase simultaneously. In addition, after the trench excavation is completed, the debris must be cleared and the excavation machinery withdrawn before multiple pipe hoists can enter the site to carry out the next process. Since the construction process involves multiple steps and the collaboration of multiple machines, the overall construction efficiency is limited, especially in complex geological conditions or bad weather, the construction progress may be greatly affected. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a continuous excavation and pipe laying device for a natural gas pipeline, which can realize efficient and continuous excavation and pipe laying construction operations, significantly improve construction efficiency and safety, and reduce construction costs.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A natural gas pipeline continuous excavation and pipe laying device, including a walking assembly, the walking assembly including two first mounting frames, each of the first mounting frames being equipped with two first transmission sprockets, and each two matching first transmission sprockets being connected via a walking crawler transmission; a main frame assembly, the main frame assembly including a main frame, the front and rear sides of the main frame being respectively fixedly connected to the two first mounting frames; an excavation assembly, the excavation assembly being used for excavating soil; a two-stage throwing assembly, the two-stage throwing assembly being matched with the excavation assembly for conveying the excavated soil to avoid soil accumulation; a power control assembly, the power control assembly being mounted on the upper end of the main frame, the power control assembly comprising a control box fixedly connected to the upper end of the main frame; and a trustee assembly, the trustee assembly being used for lifting the natural gas pipeline.

[0005] Preferably, the excavation assembly comprises a fourth mounting frame, on which two second transmission sprockets are mounted, and the two second transmission sprockets are connected via a conveying crawler transmission.

[0006] Preferably, a plurality of milling cutter heads are fixedly connected to the outer side of the conveying crawler, and a plurality of throwing plates are fixedly connected to the outer side of the conveying crawler.

[0007] Preferably, two L-shaped connecting seats are symmetrically fixedly connected to the upper end of the main frame, and mounting grooves are provided on the left sides of the two L-shaped connecting seats. Hydraulic telescopic rods are rotatably connected to the right inner walls of the two mounting grooves, and rotating claws are rotatably connected to the right inner walls of the two mounting grooves.

[0008] Preferably, the telescopic ends of the two hydraulic telescopic rods are rotatably connected to the side walls of the rotating claws, the opposite sides of the two rotating claws are fixedly connected with rotating columns, and the opposite sides of the two rotating columns are respectively fixedly connected to the front and rear sides of the right side part of the fourth mounting frame.

[0009] Preferably, the two-stage throwing assembly includes a second mounting frame fixedly connected to the left side of the main frame, a first conveying assembly is installed on the second mounting frame, a third mounting frame is fixedly connected to the front side of the second mounting frame, a second conveying assembly is installed on the third mounting frame, and the first conveying assembly and the second conveying assembly are both belt conveying assemblies.

[0010] Preferably, the hosting assembly includes two mounting plates symmetrically fixedly connected to the upper end of the main frame, and the upper ends of the two mounting plates are fixedly connected with arc-shaped support plates.

[0011] Preferably, a plurality of mounting openings are provided at the upper end of each of the arc-shaped support plates, a rotating shaft is rotatably connected between the front and rear inner walls of each of the mounting openings, a supporting wheel is installed on the outer side of each of the rotating shafts, and a rubber layer is provided on the outer side of each of the supporting wheels.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the integrated operation of excavation and pipe laying, significantly reduces the construction process and improves the construction efficiency. Through the integrated design, excavation and pipe laying can be completed in a continuous process, reducing the waiting and conversion time between each step in traditional construction, thereby greatly improving the construction speed.

[0013] 2. The device adopts a lightweight design. The main frame assembly is welded with a whole plate and a box-type structure to ensure a reasonable structural strength and weight ratio. This design not only ensures the stability of the device, but also reduces the overall weight and improves the flexibility of the operation. The lightweight design enables the device to adapt to more construction environments, including soft soil and complex terrain, expanding the scope of application of the device.

[0014] 3. The device of the present invention reduces the land occupation during the construction process through optimized design. For example, the design of the hosting system ensures the efficiency and safety of pipeline layout, while reducing the additional demand for construction areas. In addition, the lightweight main frame assembly and the efficient two-stage throwing system reduce energy consumption and operating costs, further saving construction costs. Reducing the construction area also helps to reduce the impact on the environment, which is in line with the concept of green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a natural gas pipeline continuous excavation and pipe laying device proposed by the present invention; Figure 2 for Figure 1 Schematic diagram of the left side perspective; Figure 3 is an enlarged schematic diagram of the excavation component; Figure 4 Based Figure 3 Schematic diagram of the front side of some structures; Figure 5 A schematic diagram of the structure of the managed component.

[0016] In the figure: 1 main frame, 2 control box, 3 first mounting frame, 4 first transmission sprocket, 5 walking crawler, 6 mounting plate, 7 L-shaped connecting seat, 8 hydraulic telescopic rod, 9 rotating claw, 10 rotating column, 11 fourth mounting frame, 12 second transmission sprocket, 13 conveying crawler, 14 second mounting frame, 15 first conveying assembly, 16 third mounting frame, 17 second conveying assembly, 18 mounting groove, 19 milling cutter head, 20 throwing plate, 21 arc support plate, 22 mounting port, 23 rotating shaft, 24 support wheel, 25 rubber layer. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0019] Reference Figure 1-5 A natural gas pipeline continuous excavation pipe laying device includes a walking assembly, which includes two first mounting frames 3, each of which is equipped with two first transmission sprockets 4, and each of the two matched first transmission sprockets 4 is connected by a walking crawler 5. The walking crawler 5 is 3.6 meters long, 0.86 meters wide, and 4.6 meters wide on the outside, providing stable support and good maneuverability. The design of the crawler system takes into account the adaptability of the terrain, and can maintain stable driving on uneven ground to ensure the continuity of construction; As an embodiment of the present invention, it also includes a main frame assembly, which includes a main frame 1, and the front and rear sides of the main frame 1 are respectively fixedly connected to two first mounting frames 3. The main frame 1 adopts a lightweight design, and is welded by a whole plate plus a box-type structure to ensure a reasonable structural strength and weight ratio. This design not only ensures the stability of the device, but also reduces the overall weight, improves the flexibility of the operation, and the frame assembly is easy to disassemble and repair, thereby reducing the maintenance cost; As an embodiment of the present invention, it also includes an excavation component, which is used to excavate soil. The excavation component includes a fourth mounting frame 11, on which two second transmission sprockets 12 are installed, and the two second transmission sprockets 12 are connected through a conveying crawler 13. The outer side of the conveying crawler 13 is fixedly connected with a plurality of milling cutter heads 19, and the outer side of the conveying crawler 13 is fixedly connected with a plurality of throwing plates 20. The upper end of the main frame 1 is symmetrically fixedly connected with two L-shaped connecting seats 7, and the left sides of the two L-shaped connecting seats 7 are each provided with a mounting groove 18, and the right inner walls of the two mounting grooves 18 are both rotatably connected with a hydraulic telescopic rod 8 , the right inner walls of the two mounting grooves 18 are both rotatably connected with rotating claws 9, the telescopic ends of the two hydraulic telescopic rods 8 are both rotatably connected with the side walls of the rotating claws 9, the opposite sides of the two rotating claws 9 are fixedly connected with rotating columns 10, and the opposite sides of the two rotating columns 10 are respectively fixedly connected with the front and rear sides of the right part of the fourth mounting frame 11, the milling cutter head 19 is responsible for effectively cutting the soil, and the throwing plate 20 ensures that the cut soil can be effectively thrown onto the first conveying assembly 15, and the device completes the lifting and falling of the milling belt through the connection device with hydraulic telescopic rods 8 on the left and right sides of the chain track milling belt to adapt to different excavation depths; As an embodiment of the present invention, it also includes a two-stage throwing assembly, which cooperates with the excavation assembly to transport the excavated soil to avoid soil accumulation. The two-stage throwing assembly includes a second mounting frame 14 fixedly connected to the left side of the main frame 1, and a first conveying assembly 15 is installed on the second mounting frame 14. A third mounting frame 16 is fixedly connected to the front side of the second mounting frame 14, and a second conveying assembly 17 is installed on the third mounting frame 16. The first conveying assembly 15 and the second conveying assembly 17 are both belt conveying assemblies, which are composed of a pulley and a conveyor belt. Through the cooperation of the two-stage belt conveying assembly, the excavated material can be quickly thrown out to avoid material retention and ensure the continuity and efficiency of the system operation. As an embodiment of the present invention, it also includes a power control assembly, which is installed at the upper end of the main frame 1. The power control assembly includes a control box 2 fixedly connected to the upper end of the main frame 1. The control box 2 is arranged on the side of the vehicle body. This design makes the total height of the pipeline travel area in the vehicle body center axis only 1.2 meters, which only needs to be lifted 0.4 meters relative to the 0.8 meter pipe stacking height. This design greatly reduces the height difference when the pipe passes over the device, which not only improves the safety of construction, but also makes the operation more convenient; As an embodiment of the present invention, it also includes a trustee assembly, which is used to lift the natural gas pipeline. The trustee assembly includes two mounting plates 6 symmetrically fixedly connected to the upper end of the main frame 1, and the upper ends of the two mounting plates 6 are fixedly connected with arc-shaped support plates 21. The upper end of each arc-shaped support plate 21 is provided with a plurality of mounting openings 22, and a rotating shaft 23 is rotatably connected between the front and rear inner walls of each mounting opening 22. A support wheel 24 is installed on the outer side of each rotating shaft 23, and a rubber layer 25 is provided on the outer side of each support wheel 24. The trustee assembly is used to hold the natural gas pipeline, ensuring that the contact area of ​​the natural gas pipeline is maximized and the rolling friction resistance is minimized, thereby improving the efficiency and safety of pipeline layout. The radius of the arc needs to correspond to the pipeline size to play a role in constraining the pipeline position. Furthermore, the above-mentioned traveling assembly, excavation assembly and two-stage throwing assembly are all controlled by separate motors to achieve overall operation.

[0020] In the present invention, when in use, the device moves to the left through the walking component. During the operation, the soil can be excavated by starting the excavation component. The excavated soil will eventually be thrown away from the ditch body through the two-stage conveying component. The pipe that has been welded and placed on the top of the ditch to be excavated passes through the trustee system from above the device, and then falls to the bottom of the ditch by its own weight, finally realizing the pipe laying operation. Compared with the existing technology, this method can effectively improve the speed and efficiency of pipe laying, and the overall occupied space is smaller and the operation is more stable.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A natural gas pipeline continuous excavation and pipe laying device, characterized in that: include: A walking assembly, the walking assembly comprising two first mounting frames (3), each of the first mounting frames (3) being mounted with two first transmission sprockets (4), and each of the two matched first transmission sprockets (4) being connected in transmission via a walking crawler (5); A main frame assembly, the main frame assembly comprising a main frame (1), the front and rear sides of the main frame (1) being fixedly connected to two first mounting frames (3) respectively; An excavation assembly, wherein the excavation assembly is used to excavate soil; A two-stage throwing assembly, which cooperates with the excavation assembly to transport the excavated soil to avoid soil accumulation; A power control assembly, the power control assembly being mounted on the upper end of the main frame (1), the power control assembly comprising a control box (2) fixedly connected to the upper end of the main frame (1); A hosting component is used to support the natural gas pipeline.

2. A natural gas pipeline continuous excavation and pipe laying device according to claim 1, characterized in that: The excavation assembly comprises a fourth mounting frame (11), on which two second transmission sprocket wheels (12) are mounted, and the two second transmission sprocket wheels (12) are connected in transmission via a conveying crawler (13).

3. A natural gas pipeline continuous excavation and pipe laying device according to claim 2, characterized in that: A plurality of milling cutter heads (19) are fixedly connected to the outer side of the conveying crawler (13), and a plurality of throwing plates (20) are fixedly connected to the outer side of the conveying crawler (13).

4. A natural gas pipeline continuous excavation and pipe laying device according to claim 2, characterized in that: Two L-shaped connection seats (7) are symmetrically fixedly connected to the upper end of the main frame (1), and a mounting groove (18) is provided on the left side of the two L-shaped connection seats (7). A hydraulic telescopic rod (8) is rotatably connected to the right inner wall of the two mounting grooves (18), and a rotating claw (9) is rotatably connected to the right inner wall of the two mounting grooves (18).

5. A natural gas pipeline continuous excavation and pipe laying device according to claim 4, characterized in that: The telescopic ends of the two hydraulic telescopic rods (8) are rotatably connected to the side walls of the rotating claws (9), the opposite sides of the two rotating claws (9) are fixedly connected to rotating columns (10), and the opposite sides of the two rotating columns (10) are respectively fixedly connected to the front and rear sides of the right side portion of the fourth mounting frame (11).

6. A natural gas pipeline continuous excavation and pipe laying device according to claim 1, characterized in that: The two-stage throwing assembly comprises a second mounting frame (14) fixedly connected to the left side of the main frame (1), a first conveying assembly (15) being mounted on the second mounting frame (14), a third mounting frame (16) being fixedly connected to the front side of the second mounting frame (14), a second conveying assembly (17) being mounted on the third mounting frame (16), and the first conveying assembly (15) and the second conveying assembly (17) are both belt conveying assemblies.

7. A natural gas pipeline continuous excavation and pipe laying device according to claim 1, characterized in that: The hosting assembly comprises two mounting plates (6) symmetrically fixedly connected to the upper end of the main frame (1), and the upper ends of the two mounting plates (6) are both fixedly connected to an arc-shaped support plate (21).

8. A natural gas pipeline continuous excavation and pipe laying device according to claim 7, characterized in that: A plurality of mounting openings (22) are provided at the upper end of each of the arc-shaped support plates (21); a rotating shaft (23) is rotatably connected between the front and rear inner walls of each of the mounting openings (22); a supporting wheel (24) is mounted on the outer side of each of the rotating shafts (23); and a rubber layer (25) is provided on the outer side of each of the supporting wheels (24).

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