Large-diameter heat distribution pipeline pipe supporting pulley in tunnel

Abstract

The utility model discloses a large-diameter heat distribution pipeline pipe supporting pulley in a tunnel, the pipe supporting pulley is arranged in the tunnel, the bottom of the tunnel is provided with a track along the extending direction of the tunnel, the pipe supporting pulley comprises a bottom frame, a walking wheel, a hydraulic rod and an arc-shaped plate, the walking wheel is arranged at the bottom of the bottom frame and moves on the track, and the hydraulic rod is arranged on the arc-shaped plate. A base of the hydraulic rod is fixed to the top of the bottom frame, the telescopic rod is connected with the outer arc face of the arc-shaped plate, and the inner arc face of the arc-shaped plate is matched with a large-diameter heat distribution pipeline and used for containing the large-diameter heat distribution pipeline. The device has the advantages that the large-diameter heat distribution pipeline is fixed on the pipe supporting pulley, the track is mounted at the bottom of the tunnel, and the pipe supporting pulley moves along the extending direction of the track, so that the large-diameter heat distribution pipeline is moved and mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline installation equipment, in particular to a large-diameter thermal pipeline hosting pulley in a tunnel. Background Art

[0002] Thermal pipelines crossing large-span rivers are usually constructed using the shield and casing method. The tunnel is a double-hole double-pipe design (one water supply pipeline and one return pipeline), and a starting well and a receiving well are set at both ends of the shield tunnel. For the installation of thermal pipelines, a hosting pulley is generally used, in which three eight-shaped rubber wheels are set on the front and rear sides of the bottom of the curved steel plate of the hosting pulley, but the following problems exist during the installation process:

[0003] 1. The vertical shaft is a square structure. When the thermal pipe is lowered, only the front and rear wheels bear force. It is easy to become unstable when dragged forward. If a special horizontal pulley is made at the wellhead, the pulley replacement will affect the construction period and pipeline welding quality;

[0004] Second, the shield tunnel is assembled from 6 segments, which are allowed to be misaligned according to the specifications. In addition, there are bolt holes within the wheel range depending on the assembly points, which makes it easy for the wheel to get stuck during the pulling process, and there is a risk of the vehicle falling off due to hard pulling;

[0005] 3. The rear end of the pipeline is prone to swaying, and the center of gravity of the supporting pulley is high, which can easily cause the entire pipeline to become unstable and tip over, causing pipe deformation and weld damage, affecting the installation quality and ultimately leading to interruption of pipeline installation.

[0006] Therefore, there is a need for a large-diameter thermal pipeline hosting pulley in a tunnel that can solve the above-mentioned problems. Summary of the invention

[0007] The purpose of the utility model is to provide a large-diameter thermal pipe hosting pulley in a tunnel based on the deficiencies of the above-mentioned prior art, fix the large-diameter thermal pipe on the hosting pulley, install a track at the bottom of the tunnel, and move the hosting pulley along the extension direction of the track, thereby realizing the movement and installation of the large-diameter thermal pipe.

[0008] The purpose of this utility model is achieved by the following technical solutions:

[0009] A hosting pulley for a large-diameter thermal pipeline in a tunnel, the hosting pulley is arranged in the tunnel, a track is installed at the bottom of the tunnel along its extension direction, the hosting pulley comprises a base frame, running wheels, a hydraulic rod and a curved plate, the running wheels are installed at the bottom of the base frame and move on the track, the hydraulic rod base is fixed to the top of the base frame, the telescopic rod is connected to the outer curved surface of the curved plate, and the inner curved surface of the curved plate cooperates with the large-diameter thermal pipeline and is used to place the large-diameter thermal pipeline.

[0010] A rubber pad is arranged on the inner curved surface of the curved plate.

[0011] Rope binding holes are provided on both sides of the arc of the arc-shaped plate.

[0012] The hydraulic rods are arranged along the transverse direction and the longitudinal direction of the top of the chassis.

[0013] Two tracks are arranged opposite to each other.

[0014] There are four running wheels, which are respectively installed at the four corners of the bottom of the base frame.

[0015] The utility model has the advantages that a large-diameter thermal pipeline is fixed on a hosting pulley, and a track is installed at the bottom of the tunnel; the hosting pulley moves along the extension direction of the track, thereby realizing the movement and installation of the large-diameter thermal pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the installation of the hosting pulley of the utility model;

[0017] Figure 2 It is a cross-sectional view of the hosting pulley of the utility model;

[0018] Figure 3 It is a cross-sectional view of the track of the utility model. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0020] like Figure 1-3 As shown, the marks in the figure represent respectively:

[0021] The hosting pulley 1, the track 2, the tunnel 3, the base frame 4, the running wheel 5, the hydraulic rod 6, the arc plate 7, the rubber pad 8, the return pipe 9, and the water supply pipe 10.

[0022] Example: Figure 1-3As shown, this embodiment relates to a large-diameter thermal pipeline hosting pulley in a tunnel. The hosting pulley 1 is used for moving and installing large-diameter thermal pipelines (return water pipeline 9 and water supply pipeline 10). The hosting pulley 1 is arranged in a tunnel 3. A track 2 (using a steel rail) is installed at the bottom of the tunnel 3 along its extension direction. Specifically, two tracks 2 are arranged, and the bottom of the tunnel 3 is paved with plain concrete so that the track 2 strength meets the pipe-threading bearing capacity and saves costs. The hosting pulley 1 includes a base frame 4, a running wheel 5, a hydraulic rod 6 and an arc plate 7. The running wheel 5 is installed at the bottom of the base frame 4 and moves on the track 2. Correspondingly, four running wheels 5 are arranged, and the four running wheels 5 are respectively installed at the four corners of the bottom of the base frame 4 to ensure the horizontal transportation of the large-diameter thermal pipeline. To prevent the overall instability caused by the transportation process, ensure the installation quality, and the running wheel 5 can be driven and decelerated respectively through the driving device and the reduction device on the hosting pulley 1, and the pulling and pulling are flexible, which is convenient for welding in place and saves construction time. The base of the hydraulic rod 6 is fixed to the top of the base frame 4, the telescopic rod of the hydraulic rod 6 is connected to the outer arc surface of the arc plate 7, the hydraulic rod 6 is arranged along the horizontal and longitudinal directions of the top of the base frame 4, the inner arc surface of the arc plate 7 cooperates with the large-diameter thermal pipeline and is used to place the large-diameter thermal pipeline. By controlling the length of different hydraulic rods 6, it can adapt to the arc plates 7 with different curvatures, and the arc plates 7 with different curvatures are used to place thermal pipelines with different diameters.

[0023] like Figure 2 As shown, a rubber pad 8 is provided on the inner arc surface of the arc plate 7, and the rubber pad 8 can buffer and protect the large-diameter thermal pipe. In addition, rope holes are opened on both sides of the arc of the arc plate 7. After the large-diameter thermal pipe is placed on the arc plate 7, the rope is wound around the large-diameter thermal pipe and fixed to the rope hole, so that the large-diameter thermal pipe can be further fixed.

[0024] The beneficial technical effect of this embodiment is: the large diameter thermal pipeline is fixed on the hosting pulley, and the track is installed at the bottom of the tunnel. The hosting pulley moves along the extension direction of the track, thereby realizing the movement and installation of the large diameter thermal pipeline.

[0025] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A large diameter thermal pipeline hosting pulley in a tunnel, characterized by: The hosting pulley is arranged in a tunnel, and a track is installed at the bottom of the tunnel along its extension direction. The hosting pulley includes a base frame, running wheels, a hydraulic rod and a curved plate. The running wheels are installed at the bottom of the base frame and move on the track. The hydraulic rod base is fixed to the top of the base frame, the telescopic rod is connected to the outer curved surface of the curved plate, and the inner curved surface of the curved plate cooperates with the large-diameter thermal pipeline and is used to place the large-diameter thermal pipeline.

2. A large diameter thermal pipeline hosting pulley in a tunnel as claimed in claim 1, characterized in that: A rubber pad is arranged on the inner curved surface of the curved plate.

3. A large diameter thermal pipeline hosting pulley in a tunnel as claimed in claim 1, characterized in that: Rope binding holes are provided on both sides of the arc of the arc-shaped plate.

4. A large diameter thermal pipeline hosting pulley in a tunnel as claimed in claim 1, characterized in that: The hydraulic rods are arranged along the transverse direction and the longitudinal direction of the top of the chassis.

5. The large-diameter thermal pipeline hosting pulley in a tunnel as claimed in claim 1, characterized in that: Two tracks are arranged opposite to each other.

6. A large diameter thermal pipeline hosting pulley in a tunnel as claimed in claim 5, characterized in that: There are four running wheels, which are respectively installed at the four corners of the bottom of the base frame.

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