Large-diameter heat pipe jacking construction device and construction process thereof

Abstract

The application relates to the technical field of pipeline construction, in particular to a large-diameter heat pipe jacking construction device and a construction process thereof. The large-diameter heat pipe jacking construction device comprises a supporting assembly for supporting a heat pipe and a jacking assembly for jacking the heat pipe on the supporting assembly into soil, one side of the jacking assembly is provided with a transfer assembly, the transfer assembly comprises a transfer arm, one end of the transfer arm is provided with a transfer plate, a vacuum chuck for grabbing a heat pipe to be installed is arranged on the transfer plate, a slewing plate for driving the transfer arm to rotate and transferring the grabbed heat pipe to the inside of the jacking assembly is arranged in the installation well, and the efficiency of pipe jacking construction is improved, and the time and labor are saved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline construction, and in particular to a large-diameter thermal pipeline jacking construction device and a construction process thereof. Background Art

[0002] At present, pipe jacking construction is a trenchless construction method that can achieve pipeline burial without excavation or with minimal excavation. It overcomes the friction between the pipeline and the surrounding soil by using the jacking force generated by the jacking equipment in the working pit, and pushes the pipeline into the soil according to the designed slope and direction, and then transports the soil away.

[0003] Chinese patent announcement number CN210344519U discloses a jacking device for underground pipeline construction, including a machine base, a jacking pipe and a tunneling pipe. One end of the machine base is fixedly connected to multiple groups of jacks. The right outer ends of the jacking pipe and the tunneling pipe are fixedly connected to a fixing ring. A first thread is provided inside the right side of the jacking pipe and the tunneling pipe. The left end of the jacking pipe is fixedly connected to a connecting pipe. The outer side of the connecting pipe is provided with a second thread that cooperates with the first thread. A sealing plate is fixedly connected to the left side of the jacking pipe. A motor is provided inside the right side of the tunneling pipe. The power shaft end of the motor is fixedly connected to a drive rod, and a spiral blade is fixedly connected to the drive rod. By installing a mud discharge device with a spiral blade structure in the tunneling pipe at the front end of the jacking pipe, and through the conical structure, the jacking device can further reduce the working resistance during operation, and the appropriate number of jacking pipes can be selected according to the length of the tunneling. By setting the sealing plate, the sealing effect of the pipeline connection is further improved to prevent leakage.

[0004] The above-mentioned prior art solutions have the following defects: during the process of using the above-mentioned pipe jacking device for pipeline construction, first, an installation well is excavated on the ground, and then the pipe jacking device is placed in the installation well; the pipe jacking device can push the pipes inside the installation well into the ground one by one; therefore, during the construction process, people need to continuously move the pipes to be installed into the installation well one by one, which will lead to a decrease in the efficiency of the pipe jacking construction and a waste of time and manpower. Summary of the Invention

[0005] In order to improve the efficiency of pipe jacking construction and save time and manpower, the present application provides a large-diameter thermal pipeline jacking construction device and a construction process thereof.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A large-diameter thermal pipe jacking construction device includes a support assembly for supporting the thermal pipe and a jacking assembly for jacking the thermal pipe on the support assembly into the soil. A transfer assembly is provided on one side of the jacking assembly. The transfer assembly includes a transfer arm, and a transfer plate is provided at one end of the transfer arm. The transfer plate is provided with a vacuum suction cup for grabbing the thermal pipe to be installed. A rotating plate is provided inside the installation well to drive the transfer arm to rotate so that the grabbed thermal pipe is transferred to the inside of the jacking assembly.

[0008] By adopting the above scheme, when it is necessary to install the thermal pipeline by jacking, the transfer assembly is placed between the thermal pipeline to be installed and the support assembly; during the use of the transfer assembly, the rotary plate first drives the transfer arm to rotate in the direction of the thermal pipeline to be installed, and the transfer arm drives the transfer plate to move in the direction of the thermal pipeline. After the end of the vacuum suction cup away from the transfer plate abuts against the outer surface of the thermal pipeline, the internal pressure of the vacuum suction cup decreases, and the vacuum suction cup and the thermal pipeline will be connected together; then the rotary plate continues to drive the transfer arm to rotate until the captured thermal pipeline is transferred to the inside of the support assembly, the vacuum suction cup is separated from the thermal pipeline, and then the jacking assembly pushes the thermal pipeline inside the support assembly into the ground, thus completing the jacking construction process. During the construction process, people do not need to use manpower to transfer the thermal pipeline to the support assembly inside the installation well, thereby improving the efficiency of the jacking construction and saving time and manpower.

[0009] Preferably, there are four vacuum suction cups in total, and the four vacuum suction cups are divided into two groups with the same structure. The two vacuum suction cups in the same group are gradually inclined toward each other along the direction from approaching to moving away from the transfer plate.

[0010] Preferably, a mounting rod is provided at one end of the vacuum suction cup close to the transfer plate, and the mounting rod extends to the inside of the transfer plate at one end close to the transfer plate. A bidirectional screw is provided inside the transfer plate to drive the two mounting rods in the same group to move toward or away from each other.

[0011] Preferably, the mounting rod is rotationally connected to the vacuum suction cup, and an adjustment cylinder is provided on the transfer plate to drive the vacuum suction cup to rotate on the mounting rod.

[0012] Preferably, mutually symmetrical auxiliary rods are provided on the side away from each other of the vacuum suction cups of the same group, and the two mutually symmetrical auxiliary rods are gradually inclined from the direction of approaching and moving away from the transfer plate to the direction of moving away from each other.

[0013] Preferably, one end of the auxiliary rod close to the transfer plate is rotatably connected to the transfer plate, and an elastic member is connected between the two symmetrical auxiliary rods to drive the two auxiliary rods to rotate in a direction toward each other.

[0014] Preferably, a guide tube is sleeved at one end of the thermal pipe, the outer diameter of the guide tube gradually increases from close to to far away from the thermal pipe, and a sealing ring is provided inside the guide tube to improve the sealing between the inner wall of the guide tube and the outer surface of the thermal pipe.

[0015] Preferably, a mounting hole is opened on the end face of the thermal pipe close to the guide pipe, the mounting hole is connected to the inside of the side wall of the guide pipe, and is connected to the inside of the guide pipe at a position where the guide pipe is away from the thermal pipe. The inside of the sealing ring is filled with gas, the sealing ring is installed in the mounting hole and one end of the sealing ring is located on the outside of the thermal pipe at a position where the thermal pipe is close to the guide pipe.

[0016] Preferably, the jacking assembly includes a three-jaw chuck with a horizontal central axis, a clamping plate is slidably mounted on the three-jaw chuck, and a jacking cylinder is provided on the side of the three-jaw chuck away from the support assembly.

[0017] The present application also provides a large-diameter thermal pipeline jacking construction process, comprising the following steps:

[0018] Preparation: According to the outer diameter of the thermal pipe, adjust the distance between the two opposite vacuum suction cups and the position of the clamping plate on the three-jaw chuck;

[0019] Debugging: Start the transfer assembly to enter the trial operation process, ensure that the rotary plate can transfer the transfer plate to the top of the support assembly, adjust the position of the thermal pipe on the ground, and enable the transfer assembly to grab the thermal pipe normally;

[0020] Operation: The transfer component grabs the thermal pipe to be pushed in from the ground and transfers it to the support component, and docks with the thermal pipe on the support component that has been pushed into the ground. The pushing component pushes the thermal pipe into the ground.

[0021] In summary, this application has the following technical effects:

[0022] 1. By setting up a pipe jacking construction device including a transfer component, the transfer component can transfer the thermal pipe to be installed outside the installation well to the support component, and the jacking component will push the thermal pipe in the support component into the ground. In this way, there is no need for people to use manpower to transfer the thermal pipe, which improves the efficiency of pipe jacking construction and saves time and manpower;

[0023] 2. By setting up auxiliary rods and elastic parts, when the vacuum suction cups on the rotating plate absorb the thermal pipe, the auxiliary rods and elastic parts can correct the suction points of the vacuum suction cups on the thermal pipe, so that the two vacuum suction cups in the same group can be adsorbed on the thermal pipe at mutually symmetrical positions, which can make the thermal pipe grasping process more stable;

[0024] 3. By setting up the guide tube and the sealing ring, the guide tube can facilitate the docking of two adjacent thermal pipes, and the sealing ring can improve the sealing performance of the connection between the two thermal pipes after the thermal pipes are docked with each other, thereby reducing the entry of debris into the thermal pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall structural diagram of the pipe jacking construction device when used in the embodiment of the present application;

[0026] Figure 2 It is a partial diagram highlighting the end face structure of the thermal pipeline in the embodiment of the present application;

[0027] Figure 3 It is a diagram highlighting the state of the thermal pipes when they are connected to each other in the embodiment of the present application;

[0028] Figure 4 It is a local schematic diagram highlighting the position of the transfer plate in the embodiment of the present application.

[0029] In the figure, 1. support assembly; 11. support ring; 12. support frame; 2. jacking assembly; 21. jacking cylinder; 22. three-jaw chuck; 23. clamping plate; 3. transfer assembly; 31. rotary plate; 32. rotary cylinder; 33. transfer arm; 34. transfer plate; 35. vacuum suction cup; 36. mounting rod; 37. bidirectional screw; 38. adjustment handle; 39. adjustment cylinder; 4. mounting well; 5. thermal pipe; 51. guide tube; 52. sealing ring; 53. mounting hole; 6. auxiliary rod; 61. elastic part. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings.

[0031] Reference Figure 1 The present application provides a large-diameter thermal pipe jacking construction device, comprising a support assembly 1, a jacking assembly 2, and a transfer assembly 3. An installation well 4 for jacking construction is provided on the ground. The support assembly 1, the jacking assembly 2, and the transfer assembly 3 are all arranged inside the installation well 4. The thermal pipe 5 is placed on the ground and is located on one side of the installation well 4. During the construction process, the support assembly 1 can support the thermal pipe 5 to be jacked in, the jacking assembly 2 is located on one side of the support assembly 1, and the jacking assembly 2 can jack the thermal pipe 5 on the support assembly 1 into the ground in sequence. The transfer assembly 3 is located on one side of the support assembly 1, and the transfer assembly 3 can transfer the thermal pipe 5 placed on the ground to the support assembly 1. In this way, people do not need to use manpower to transfer the thermal pipe 5, thereby achieving the effect of accelerating construction efficiency.

[0032] There are multiple groups of support assemblies 1 arranged in the horizontal direction inside the installation well 4. The support assembly 1 includes a support ring 11 and a support frame 12. The support ring 11 is arc-shaped as a whole, and the opening of the support ring 11 faces upward. The support frame 12 is arranged below the support ring 11 and is fixedly connected to the support ring 11 and the lower surface of the installation well 4.

[0033] The jacking assembly 2 includes a jacking cylinder 21, a three-jaw chuck 22 and a clamping plate 23. The central axis direction of the three-jaw chuck 22 is the same as the arrangement direction of the multiple groups of support assemblies 1. The three-jaw chuck 22 is arranged on one side of the multiple groups of support assemblies 1 and the back of the three-jaw chuck 22 is away from the support assembly 1; the clamping plate 23 is slidably installed on the three-jaw chuck 22 and is slidably connected to the three-jaw chuck 22. The position adjustment method of the clamping plate 23 on the three-jaw chuck 22 is the same as the operation method of clamping or releasing the clamping rod by the three-jaw chuck 22; the jacking cylinder 21 is fixed above the lower surface of the installation well 4, and the output shaft end of the jacking cylinder 21 is fixedly connected to the back of the three-jaw chuck 22.

[0034] During the construction of the thermal pipe 5, the two thermal pipes 5 are horizontally docked and then placed on the support ring 11. By adjusting the position of the clamping plate 23 on the three-jaw chuck 22, the clamping plate 23 on the three-jaw chuck 22 can tighten the thermal pipe 5 and abut against the end face of the thermal pipe 5; after starting the jacking cylinder 21, the jacking cylinder 21 drives the three-jaw chuck 22 to move in the direction close to the support assembly 1. While the three-jaw chuck 22 moves, the thermal pipe 5 away from the jacking cylinder 21 will be pushed into the ground, thus completing the jacking construction process of the thermal pipe 5; when installing other thermal pipes 5 subsequently, continue to place the thermal pipe 5 on the support ring 11, and then use the jacking cylinder 21 to continue to jack it into the ground.

[0035] Combine Figure 2 and Figure 3 It should be noted that, in this embodiment, in order to facilitate the connection of the two thermal pipes 5, to improve the sealing performance between the two adjacent thermal pipes 5, and to reduce the entry of external debris into the thermal pipe 5, a guide pipe 51 is sleeved on one end of the thermal pipe 5. The outer diameter of the guide pipe 51 gradually increases from approaching to away from the thermal pipe 5. A sealing ring 52 is provided on the guide pipe 51 for improving the sealing performance between the inner wall of the guide pipe 51 and the outer surface of the thermal pipe 5.

[0036] In this embodiment, the sealing ring 52 is installed as follows: a mounting hole 53 is opened on the end face of the thermal pipe 5 close to the guide pipe 51. After the mounting hole 53 penetrates into the side wall of the thermal pipe 5, it passes through the outer surface of the thermal pipe 5 and is connected to the inside of the side wall of the guide pipe 51, and finally passes through the inner surface of the guide pipe 51 at a position where the guide pipe 51 is away from the thermal pipe 5; the interior of the sealing ring 52 is filled with gas, the sealing ring 52 is installed in the mounting hole 53, and the area of ​​the sealing ring 52 close to the thermal pipe 5 is located on the outside of the thermal pipe 5.

[0037] Before the two thermal pipes 5 are docked, the sealing ring 52 is located on the outside of the thermal pipe 5 through the opening of the mounting hole 53 at one end thereof close to the thermal pipe 5; when the two thermal pipes 5 need to be docked, the guide tube 51 on the thermal pipe 5 can facilitate the two thermal pipes 5 to maintain a coaxial state, and after the two thermal pipes 5 are docked, the sealing ring 52 is squeezed by the thermal pipe 5, and the airflow inside the sealing ring 52 flows and eventually flows into the inside of the guide tube 51, and the sealing ring 52 flows to the inside of the guide tube 51 at the position of the inner surface of the guide tube 51, and finally hugs the outside of the thermal pipe 5, thereby improving the sealing performance between the two adjacent thermal pipes 5.

[0038] Reference Figure 1 and Figure 4 The transfer assembly 3 includes a rotary plate 31, a rotary cylinder 32, a transfer arm 33, a transfer plate 34 and a vacuum suction cup 35. The rotary cylinder 32 is fixed on the lower surface of the installation well 4, and the rotary plate 31 is horizontally fixed on the rotary cylinder 32. The rotary cylinder 32 can drive the rotary plate 31 to rotate around a vertical axis. The transfer arm 33 is fixed on the upper surface of the rotary plate 31 and the end of the transfer arm 33 away from the rotary plate 31 can swing up and down in the vertical direction. The rotating plate is fixed to the end of the transfer arm 33 away from the rotary plate 31. There are four vacuum suction cups 35 in total, and the four vacuum suction cups 35 are divided into two groups with the same structure. The two vacuum suction cups 35 in the same group gradually tilt toward each other from approaching to away from the transfer plate 34.

[0039] After the lifting of the lifting device 34, the lifting arm 33 will be tightened, and the lifting device 34 will be tightened to the lifting position, so that the lifting device 34 can be tightened.

[0040] When the outer diameter of the thermal pipe 5 changes, in order to make the vacuum suction cup 35 have a more stable gripping force on the thermal pipe 5, a mounting rod 36 is provided at one end of the vacuum suction cup 35 close to the transfer plate 34, and the end of the mounting rod 36 close to the transfer plate 34 extends to the inside of the transfer plate 34, and a bidirectional screw 37 is provided inside the transfer plate 34, and the bidirectional screw 37 is rotatably connected to the transfer plate 34, and the bidirectional screw 37 passes through the mounting rod 36 and is threadedly connected to the mounting rod 36, and an adjustment handle 38 is provided at one end of the bidirectional screw 37, and a makeshift groove is provided on the transfer plate 34 for the two mounting rods 36 in the same group to move toward or away from each other; further, the mounting rod 36 and the vacuum suction cup 35 are arranged to be rotatably connected, and an adjustment cylinder 39 is provided on the transfer plate 34 to drive the vacuum suction cup 35 to rotate on the mounting rod 36, the base of the adjustment cylinder 39 is rotatably connected to the transfer plate 34, and the piston rod of the adjustment cylinder 39 is rotatably connected to the vacuum cylinder.

[0041] When the position of the vacuum suction cup 35 needs to be adjusted, the bidirectional screw 37 is driven to rotate by adjusting the handle 38. The bidirectional screw 37 is threadedly connected to the mounting rod 36, so the bidirectional screw 37 will drive the two mounting rods 36 in the same group to move closer to or away from each other, thus completing the adjustment process of the position of the vacuum suction cup 35; afterward, people can adjust the angle of the vacuum suction cup 35 on the mounting rod 36 by adjusting the cylinder 39, so as to ensure that the vacuum suction cup 35 can have a larger contact area with the thermal pipe 5, thereby ensuring the gripping force of the vacuum suction cup 35.

[0042] To further ensure the gripping force of the vacuum suction cups 35, mutually symmetrical auxiliary rods 6 are provided on the side of the same set of vacuum suction cups 35 that are away from each other. The two sets of auxiliary rods 6 are located on the side of the two sets of vacuum suction cups 35 that are away from each other. The two auxiliary rods 6 are gradually inclined from the direction of approaching and moving away from the transfer plate 34 to the direction of moving away from each other. The ends of the auxiliary rods 6 that are close to the transfer plate 34 are rotatably connected to the transfer plate 34. An elastic member 61 is connected between the two symmetrical auxiliary rods 6 to drive the two auxiliary rods 6 to rotate in the direction of approaching. In this embodiment, the elastic member 61 is a spring, and other elastic members 61 with the same effect are still applicable.

[0043] When the vacuum suction cup 35 on the rotating plate absorbs the thermal pipe 5, the auxiliary rod 6 and the elastic member 61 can correct the absorption point of the vacuum suction cup 35 on the thermal pipe 5, so that the two vacuum suction cups 35 in the same group can be adsorbed on the thermal pipe 5 at mutually symmetrical positions, which can make the grasping process of the thermal pipe 5 more stable.

[0044] The present application also discloses a large-diameter thermal pipeline jacking construction process, comprising the following steps:

[0045] Preparation: Adjust the distance between the two opposing vacuum suction cups 35 and the position of the clamping plate 23 on the three-jaw chuck 22 according to the outer diameter of the thermal pipe 5;

[0046] Debugging: Start the transfer assembly 3 to enter the trial operation process, ensure that the rotary plate 31 can transfer the transfer plate 34 to the top of the support assembly 1, and adjust the position of the thermal pipe 5 on the ground so that the transfer assembly 3 can normally grab the thermal pipe 5;

[0047] Operation: The transfer component 3 grabs the thermal pipe 5 to be pushed in from the ground and transfers it to the support component 1, and will dock with the thermal pipe 5 on the support component 1 that has been pushed into the ground. The pushing component 2 will push the thermal pipe 5 into the ground.

[0048] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A large-diameter heat pipe jacking construction device, comprising a support assembly (1) for supporting a heat pipe (5) and a jacking assembly (2) for jacking the heat pipe (5) on the support assembly (1) into the soil, characterized in that: A transfer assembly (3) is provided on one side of the jacking assembly (2), and the transfer assembly (3) includes a transfer arm (33), a transfer plate (34) is provided at one end of the transfer arm (33), and a vacuum suction cup (35) is provided on the transfer plate (34) for grabbing the thermal pipe (5) to be installed. A rotary plate (31) is provided inside the installation well (4) for driving the transfer arm (33) to rotate so that the grabbed thermal pipe (5) is transferred to the inside of the jacking assembly (2); a guide tube (51) is provided at one end of the thermal pipe (5), and the outer diameter of the guide tube (51) gradually increases in a direction from close to to far away from the thermal pipe (5). The guide tube (51) is provided at the inner side of the installation well (4). ) is provided with a sealing ring (52) for improving the sealing performance between the inner wall of the guide tube (51) and the outer surface of the thermal pipe (5); a mounting hole (53) is provided on the end surface of the thermal pipe (5) close to the guide tube (51); the mounting hole (53) is connected to the inside of the side wall of the guide tube (51) and is connected to the inside of the guide tube (51) at a position where the guide tube (51) is away from the thermal pipe (5); the inside of the sealing ring (52) is filled with gas, the sealing ring (52) is installed in the mounting hole (53) and one end of the sealing ring (52) is located outside the thermal pipe (5) at a position where the thermal pipe (5) is close to the guide tube (51).

2. A large-diameter thermal pipeline jacking construction device according to claim 1, characterized in that: There are four vacuum suction cups (35) in total. The four vacuum suction cups (35) are divided into two groups with the same structure. The two vacuum suction cups (35) in the same group gradually tilt towards each other along the direction from approaching to moving away from the transfer plate (34).

3. A large-diameter thermal pipeline jacking construction device according to claim 2, characterized in that: A mounting rod (36) is provided at one end of the vacuum suction cup (35) close to the transfer plate (34), and an end of the mounting rod (36) close to the transfer plate (34) extends into the interior of the transfer plate (34). A bidirectional screw (37) is provided inside the transfer plate (34) for driving two mounting rods (36) in the same group to move toward or away from each other.

4. A large-diameter thermal pipeline jacking construction device according to claim 3, characterized in that: The mounting rod (36) is rotatably connected to the vacuum suction cup (35), and an adjusting cylinder (39) is provided on the transfer plate (34) for driving the vacuum suction cup (35) to rotate on the mounting rod (36).

5. The large-diameter thermal pipeline jacking construction device according to claim 3, characterized in that: Auxiliary rods (6) symmetrical to each other are provided on the side away from each other of the vacuum suction cups (35) of the same group. The two auxiliary rods (6) symmetrical to each other are gradually inclined from the direction of approaching and moving away from the transfer plate (34) to the direction of moving away from each other.

6. A large-diameter thermal pipeline jacking construction device according to claim 5, characterized in that: One end of the auxiliary rod (6) close to the transfer plate (34) is rotatably connected to the transfer plate (34), and an elastic member (61) is connected between the two mutually symmetrical auxiliary rods (6) to drive the two auxiliary rods (6) to rotate in a direction toward each other.

7. The large-diameter thermal pipeline jacking construction device according to claim 1, characterized in that: The jacking assembly (2) comprises a three-jaw chuck (22) with a horizontal central axis, a clamping plate (23) is slidably mounted on the three-jaw chuck (22), and a jacking oil cylinder (21) is provided on the side of the three-jaw chuck (22) away from the support assembly (1).

8. A process for constructing a large-diameter thermal pipeline using the large-diameter thermal pipeline jacking construction device according to claims 1-7, characterized in that: The following steps are involved: Preparation: According to the outer diameter of the thermal pipe (5), the distance between the two opposite vacuum suction cups (35) is adjusted, and the position of the clamping plate (23) on the three-jaw chuck (22) is adjusted; Debugging: Start the transfer assembly (3) to enter the trial operation process, ensure that the rotary plate (31) can transfer the transfer plate (34) to the top of the support assembly (1), adjust the position of the thermal pipe (5) on the ground, and enable the transfer assembly (3) to normally grab the thermal pipe (5); Operation: The transfer component (3) grabs the thermal pipe (5) to be pushed in from the ground and transfers it to the support component (1), and docks with the thermal pipe (5) on the support component (1) that has been pushed into the ground. The pushing component (2) pushes the thermal pipe (5) into the ground.

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