Pipe jacking construction device of municipal pipeline and construction method of pipe jacking construction device

Abstract

The invention discloses a pipe jacking construction device for municipal pipelines and a construction method of the pipe jacking construction device, and relates to the technical field of pipe jacking machines. According to the technical scheme, the pipe jacking construction device comprises a frame, a pipe jacking mechanism is fixedly connected to the upper portion of the frame, a pipeline is arranged at the front end of the pipe jacking mechanism, a machine head is arranged at the front end of the pipeline, adjusting mechanisms are arranged on the two sides of the frame, and guide plates are fixedly connected to the adjusting mechanisms; according to the device, in the moving process of the pipeline, the transmission roller can be driven to rotate, the transmission roller rotates to drive the first piston to reciprocate in the second air cavity, air is continuously conveyed into the first air cavity through the reciprocating movement of the first piston, and therefore the pipeline can be conveyed into the second air cavity; and therefore, the air pressure in the first air cavity is increased, a second piston is driven to move in the first air cavity, the second piston moves to drive a damping and cushioning mechanism to move towards the pipeline, and the damping and cushioning mechanism is automatically attached to the surface of the pipeline in the fixed pipe jacking process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe jacking machine, in particular to a pipe jacking construction device for municipal pipeline and a construction method thereof. BACKGROUND

[0002] The pipe jacking construction device for municipal pipeline is a key equipment in the construction of urban underground pipeline, which is used for laying pipeline in a trenchless manner to reduce the interference to ground traffic and environment. The device mainly comprises core modules such as a jacking system, a relay ring, a guide rail, a back seat wall and an earth removal system. The jacking system pushes the pipe section forward by hydraulic or mechanical force. The relay ring ensures the stability of long-distance jacking by sectional relay. The guide rail accurately guides the direction of the pipe section. The back seat wall provides reaction force support. The earth removal system is responsible for synchronously removing the earthwork generated by tunneling to keep the working surface clean. During the construction process, the device is equipped with laser guidance or total station instrument for real-time monitoring to ensure the accuracy of the pipeline axis. The device has the advantages of adapting to complex geological conditions, being able to pass through obstacles such as roads, railways and rivers, realizing efficient, safe and environmentally friendly pipeline laying, and being widely used in the fields of municipal water supply, drainage and gas engineering.

[0003] However, in the actual use process of the existing device, when jacking in a curve or the stratum is uneven, the pipeline may bear lateral force, causing the pipeline to deviate or the jack piston to be stuck, and the vibration generated during the jacking process may also cause the pipeline interface to be misaligned, reducing the jacking accuracy. Therefore, the pipe jacking construction device for municipal pipeline and the construction method thereof are proposed. SUMMARY

[0004] The purpose of the present application is to solve the problems in the prior art that when jacking in a curve or the stratum is uneven, the pipeline may bear lateral force, causing the pipeline to deviate or the jack piston to be stuck, and the vibration generated during the jacking process may also cause the pipeline interface to be misaligned, reducing the jacking accuracy. The pipe jacking construction device for municipal pipeline and the construction method thereof are proposed.

[0005] To achieve the above purpose, the present application adopts the following technical solutions: The utility model provides a pipe jacking construction device of municipal pipeline, including frame, the upper portion fixed connection of frame has pipe jacking mechanism, the front end of pipe jacking mechanism is provided with pipeline, and the front end of pipeline is provided with machine head, and the both sides of frame are provided with adjusting mechanism, and the fixed connection of adjusting mechanism has guide plate, and the rotating connection of guide plate inside has transmission roller, and the fixed connection of transmission roller bottom has third gear, and the meshing connection of third gear has fourth gear, and the fixed connection of fourth gear has eccentric shaft, and the rotating connection of eccentric shaft has connecting plate, and the rotating connection of connecting plate has first piston, and the sliding connection between first piston and second air cavity, and the fixed connection of one end of second air cavity has air pipe, and the fixed connection of the air pipe away from second air cavity one end has first air cavity, and the sliding connection of first air cavity inside has second piston, and the fixed connection of second piston has mounting plate, and the fixed connection of mounting plate upper portion has damping shock attenuation mechanism.

[0006] In the pipe jacking process, the pipe jacking mechanism drives the pipeline to move, the pipeline moves and drives the transmission roller arranged in the guide plate to rotate, the transmission roller rotates and drives the eccentric shaft to rotate, the first piston reciprocates in the second air cavity by the rotation of the eccentric shaft, thereby continuously ventilating the first air cavity, the air pressure in the first air cavity rises and drives the mounting plate to move, the mounting plate moves and drives the damping shock attenuation mechanism to move to the outside of the pipeline, and finally the damping shock attenuation mechanism is attached to the outside of the pipeline, effectively buffering the vibration of the pipeline in the pushing process, the number of pipelines is multiple, the frame bottom is provided with a pipe joint guide rail for the pipe jacking movement of the pipeline, and the upper portion of the second air cavity is provided with a notch for the external gas to enter the second air cavity.

[0007] The above technical solution further comprises: The first end of the second piston away from the mounting plate is fixedly connected with a first spring, and the second end of the first spring away from the second piston is fixedly connected with the first air cavity.

[0008] The damping shock attenuation mechanism comprises a damping shell fixedly connected to one end of the mounting plate, a guide rod slidably connected in the damping shell, a buffer plate fixedly connected to one side of the guide rod, and four damping shock attenuation mechanisms respectively arranged at four positions of the secondary jacking iron.

[0009] The first end of the guide rod away from the buffer plate is fixedly connected with a third piston, the third piston is provided with a damping hole, the third piston is fixedly connected with a second spring, the second spring is fixedly connected between the damping shell, the damping shell is provided with a damping medium, and the damping shell is provided with a sealing plate at both ends.

[0010] The pipe jacking mechanism comprises a primary oil cylinder fixedly connected to the upper portion of the frame, a primary jacking iron fixedly connected to one end of the primary oil cylinder, a secondary oil cylinder fixedly connected to the upper portion of the primary jacking iron, and a secondary jacking iron fixedly connected to one end of the secondary oil cylinder.

[0011] The front end of the secondary roof iron is fixedly connected with a backing plate, and the front end of the secondary roof iron is provided with a pipeline.

[0012] The frame is fixedly connected with slide rails on both sides, and the slide rails are slidably connected with the primary roof iron and the secondary roof iron at the upper portion.

[0013] The adjusting mechanism comprises an adjusting housing fixedly connected to both sides of the frame, and the adjusting housing is internally provided with a motor, and the motor is provided with an adjusting assembly at the output end.

[0014] The adjusting assembly comprises a first gear provided at the output end of the motor, the first gear is meshedly connected with a second gear, the second gear is fixedly connected with an adjusting groove, the adjusting groove is meshedly connected with a threaded rod at the inside, the threaded rod is fixedly connected with an adjusting plate, the adjusting plate is fixedly connected with a guide plate, a limiting rod is fixedly connected to the upper portion of the adjusting plate, and the limiting rod is slidably connected with the adjusting housing.

[0015] The use method of the pipe jacking construction device for municipal pipelines comprises the following steps: Step one: according to the specifications of the pipeline, the guide plate is moved by the adjusting mechanism, so that the guide plate is arranged on both sides of the pipeline, and then the pipeline is transported to the front end of the secondary roof iron on the upper portion of the frame by using a winch or a forklift; Step two: after the pipeline is hoisted to the preset position, the mud and rust on the surface of the flange plate and the secondary roof iron are cleaned, the installed flange on the pipeline is aligned with the secondary roof iron, the bolts are penetrated and manually preliminarily fastened, and the bolts are fixed by using a hydraulic torque wrench to be tightened in two times symmetrically; Step three: the pipe jacking mechanism is started to drive the pipeline to move, and the transmission roller rotatably connected in the guide plate is rotated synchronously during the movement of the pipeline, the gas is sent into the first air cavity by the rotation of the transmission roller, the installation plate is moved by the increase of the air pressure in the first air cavity, and then the damping shock-absorbing mechanism is close to the pipeline; Step four: the damping shock-absorbing mechanism is close to the surface of the pipeline, and buffers when the pipeline is vibrated during the pipe jacking process, so as to avoid the deviation of the pipeline.

[0016] The present application has the following advantages: 10. In this invention, during the pipe jacking process, the pipe is moved by the pipe jacking mechanism. During the pipe movement, the transmission rollers connected inside the guide plates on both sides rotate. The rotation of the transmission rollers drives the first piston to reciprocate inside the second air chamber. Through the reciprocating movement of the first piston, gas is continuously delivered into the first air chamber, thereby increasing the air pressure inside the first air chamber. This, in turn, drives the second piston to move inside the first air chamber. The movement of the second piston drives the damping and shock-absorbing mechanism to move towards the pipe, so that the damping and buffering mechanism automatically fits against the pipe surface during the fixed pipe jacking process. The damping and buffering mechanism consumes the vibration kinetic energy generated during the pipe jacking process, avoiding pipe interface misalignment and reduced jacking accuracy.

[0017] 11. In this invention, before pipe jacking construction, the guide plate can be moved by the adjustment mechanism, thereby adjusting the position of the guide plate according to the size of the pipe, so as to guide the pipe during hoisting and ensure the hoisting accuracy of the pipe. After the pipe is installed, the pipe can be moved by the pipe jacking mechanism to carry out pipe jacking operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the pipe jacking construction device for municipal pipelines proposed in this invention; Figure 2 This is a schematic diagram of the frame connection relationship in this invention; Figure 3 This is a schematic diagram of the internal structure of the adjusting housing in this invention; Figure 4 This is a schematic diagram of the internal structure of the guide plate in this invention; Figure 5 This is a schematic diagram of the internal structure of the first air cavity in this invention; Figure 6 This is a schematic diagram of the internal structure of the damping shell in this invention.

[0019] In the diagram: 1. Frame; 2. Slide rail; 3. First-stage hydraulic cylinder; 4. First-stage top plate; 5. Second-stage hydraulic cylinder; 6. Second-stage top plate; 7. Pipeline; 8. Machine head; 9. Guide plate; 10. Adjusting housing; 11. Air pipe; 12. First air chamber; 13. Pad plate; 14. Damping housing; 15. Transmission roller; 16. Motor; 17. First gear; 18. Second gear; 19. Adjusting groove; 20. Threaded rod; 21. Third gear; 22. Fourth gear; 23. Eccentric shaft; 24. Connecting plate; 25. First piston; 26. Buffer plate; 27. Mounting plate; 28. Second piston; 29. ​​First spring; 30. Guide rod; 31. Third piston; 32. Damping hole; 33. Second spring; 34. Second air chamber; 35. Adjusting plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 like Figures 1-6 As shown, the municipal pipeline jacking construction device proposed in this invention includes a frame 1, a jacking mechanism fixedly connected to the upper part of the frame 1, a pipe 7 set at the front end of the jacking mechanism, a machine head 8 set at the front end of the pipe 7, adjustment mechanisms set on both sides of the frame 1, a guide plate 9 fixedly connected to the adjustment mechanism, a transmission roller 15 rotatably connected inside the guide plate 9, a third gear 21 fixedly connected to the bottom of the transmission roller 15, a fourth gear 22 meshing with the third gear 21, an eccentric shaft 23 fixedly connected to the fourth gear 22, a connecting plate 24 rotatably connected to the eccentric shaft 23, a first piston 25 rotatably connected to the connecting plate 24, a sliding connection between the first piston 25 and a second air chamber 34, an air pipe 11 fixedly connected to one end of the second air chamber 34, a first air chamber 12 fixedly connected to the end of the air pipe 11 away from the second air chamber 34, a second piston 28 slidably connected inside the first air chamber 12, an mounting plate 27 fixedly connected to the second piston 28, and a damping and shock-absorbing mechanism fixedly connected to the upper part of the mounting plate 27.

[0022] During the pipe jacking process, the pipe jacking mechanism drives the pipe 7 to move. The movement of the pipe 7 causes the transmission roller 15 inside the guide plate 9 to rotate. The rotation of the transmission roller 15 drives the third gear 21 to rotate. The rotation of the third gear 21 drives the first piston 25 to move back and forth inside the second air chamber 34, thereby continuously supplying air into the first air chamber 12. The air pressure inside the first air chamber 12 increases, causing the mounting plate 27 to move. The movement of the mounting plate 27 causes the damping and shock absorption mechanism to move to the outside of the pipe 7, and finally to fit against the outside of the pipe 7, effectively buffering the vibration generated by the pipe 7 during the advancement process. There are multiple pipes 7. The bottom of the frame 1 is provided with pipe section guide rails, which are used to move the pipe 7 during pipe jacking. The upper part of the second air chamber 34 has a slot, through which external gas enters the second air chamber 34. The end of the second piston 28 away from the mounting plate 27 is fixedly connected to the first spring 29, and the end of the first spring 29 away from the second piston 28 is fixedly connected to the first air chamber 12.

[0023] The damping and shock-absorbing mechanism includes a damping housing 14 fixedly connected to one end of the mounting plate 27. A guide rod 30 is slidably connected inside the damping housing 14. A buffer plate 26 is fixedly connected to one side of the guide rod 30. There are four damping and shock-absorbing mechanisms, which are respectively set in the four directions of the frame 1. A third piston 31 is fixedly connected to the end of the guide rod 30 away from the buffer plate 26. A damping hole 32 is opened inside the third piston 31. A second spring 33 is fixedly connected to the third piston 31. The second spring 33 is fixedly connected to the damping housing 14. A damping medium is provided inside the damping housing 14. Sealing plates are provided at both ends of the damping housing 14.

[0024] In this embodiment, during the pipe jacking process, the pipe jacking mechanism drives the pipe 7 to move. During this movement, the transmission rollers 15, which are rotatably connected inside the guide plates 9 on both sides, rotate. The rotation of the transmission rollers 15 drives the third gear 21, which is fixedly connected at the bottom, to rotate. The rotation of the third gear 21 drives the meshing fourth gear 22 to rotate. The rotation of the fourth gear 22 drives the fixedly connected eccentric shaft 23 to rotate. The rotation of the eccentric shaft 23 drives the rotatably connected connecting plate 24 to rotate. The rotation of the connecting plate 24 drives the rotatably connected first piston 25 to rotate in the second... The first piston 25 moves back and forth inside the air chamber 34, continuously supplying gas into the first air chamber 12 through the air pipe 11, thereby increasing the air pressure inside the first air chamber 12. This, in turn, drives the second piston 28 to move inside the first air chamber 12. The movement of the second piston 28 drives the fixedly connected mounting plate 27 to move, which in turn drives the damping and shock-absorbing mechanism to move towards the pipe 7. This allows the damping and buffering mechanism to automatically fit against the surface of the pipe 7 during the fixed pipe jacking process. After the pipe jacking of the pipe 7 is completed, the second piston 28 can be reset by the first spring 29, which facilitates continuous pipe jacking.

[0025] When the pipe 7 vibrates during the pipe jacking process, it can drive the buffer plate 26 to move. The movement of the buffer plate 26 can drive the third piston 31, which is fixedly connected by the guide rod 30, to move inside the damping housing 14. During the movement of the third piston 31, the damping medium inside the damping housing 14 can generate throttling resistance when it passes through the damping hole 32, thereby consuming the vibration kinetic energy generated during the pipe jacking process, avoiding misalignment of the pipe 7 interface and reduction of jacking accuracy.

[0026] Example 2 like Figures 1-6 As shown, the pipe jacking mechanism includes a primary hydraulic cylinder 3 fixedly connected to the upper part of the frame 1, a primary jacking iron 4 fixedly connected to one end of the primary hydraulic cylinder 3, a secondary hydraulic cylinder 5 fixedly connected to the upper part of the primary jacking iron 4, a secondary jacking iron 6 fixedly connected to one end of the secondary hydraulic cylinder 5, a pad plate 13 fixedly connected to the front end of the secondary jacking iron 6, a machine head 8 set at the front end of the pad plate 13, a pipe 7 set at the front end of the pad plate 13, slide rails 2 fixedly connected to both sides of the frame 1, and the primary jacking iron 4 and the secondary jacking iron 6 slidably connected to the upper part of the slide rails 2.

[0027] The adjusting mechanism comprises adjusting housings 10 fixedly connected on both sides of the frame 1, a motor 16 is arranged inside the adjusting housings 10, an adjusting assembly is arranged at the output end of the motor 16, the adjusting assembly comprises a first gear 17 arranged at the output end of the motor 16, the first gear 17 is in meshing connection with a second gear 18, the second gear 18 is fixedly connected with an adjusting groove 19, the adjusting groove 19 is in meshing connection with a threaded rod 20 inside, the threaded rod 20 is fixedly connected with an adjusting plate 35, the adjusting plate 35 is fixedly connected with a guide plate 9, a limiting rod is fixedly connected to the upper portion of the adjusting plate 35, and the limiting rod is in sliding connection with the adjusting housings 10.

[0028] In the embodiment, before the pipe jacking construction, the motor 16 is started to drive the first gear 17 to rotate, the first gear 17 drives the meshing-connected second gear 18 to rotate, the second gear 18 drives the fixedly-connected adjusting groove 19 to rotate, the adjusting groove 19 drives the screw-connected threaded rod 20 to move, the threaded rod 20 drives the fixedly-connected adjusting plate 35 to move, and the adjusting plate 35 drives the fixedly-connected guide plate 9 to move, so that the position of the guide plate 9 is adjusted according to the size of the pipeline 7, thereby guiding the hoisting of the pipeline 7 and ensuring the hoisting accuracy of the pipeline 7.

[0029] The primary oil cylinder 3 provides a counterforce through the frame 1 to push the primary oil cylinder 3 and the pipeline 7 to be initially jacked along the slide rail 2, the primary oil cylinder 3 is retracted after reaching the stroke, the primary jacking iron 4 is separated and inserted into the secondary jacking iron 6 for fixation, and then the secondary oil cylinder 5 is jacked, the primary oil cylinder 3 and the secondary oil cylinder 5 cooperatively control the pushing force, the slide rail 2 supports and guides the sliding of the primary jacking iron 4 and the secondary jacking iron 6 throughout the stroke to reduce friction and ensure the direction accuracy.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pipe jacking construction device for municipal pipelines, comprising a frame (1), characterized in that, A pipe jacking mechanism is fixedly connected to the upper part of the frame (1). A pipe (7) is provided at the front end of the pipe jacking mechanism. An organic head (8) is provided at the front end of the pipe (7). Adjustment mechanisms are provided on both sides of the frame (1). A guide plate (9) is fixedly connected to the adjustment mechanism. A transmission roller (15) is rotatably connected inside the guide plate (9). A third gear (21) is fixedly connected to the bottom of the transmission roller (15). A fourth gear (22) is meshed with the third gear (21). An eccentric shaft (23) is fixedly connected to the fourth gear (22). A connecting plate (24) is rotatably connected to the connecting plate (24), and a first piston (25) is rotatably connected to the connecting plate (24). The first piston (25) is slidably connected to the second air chamber (34). An air pipe (11) is fixedly connected to one end of the second air chamber (34). A first air chamber (12) is fixedly connected to the end of the air pipe (11) away from the second air chamber (34). A second piston (28) is slidably connected inside the first air chamber (12). An mounting plate (27) is fixedly connected to the second piston (28). A damping and shock-absorbing mechanism is fixedly connected to the upper part of the mounting plate (27). During the pipe jacking process, the pipe jacking mechanism drives the pipe (7) to move, and the movement of the pipe (7) causes the transmission roller (15) set inside the guide plate (9) to rotate. The rotation of the transmission roller (15) drives the eccentric shaft (23) to rotate. The rotation of the eccentric shaft (23) drives the first piston (25) to move back and forth inside the second air chamber (34), thereby continuously ventilating the first air chamber (12). The air pressure inside the first air chamber (12) increases, causing the mounting plate (27) to move. The movement of the mounting plate (27) causes the damping and shock absorption mechanism to move to the outside of the pipe (7), and finally fits against the outside of the pipe (7), effectively buffering the vibration generated by the pipe (7) during the jacking process.

2. The pipe jacking construction device for municipal pipelines according to claim 1, characterized in that, The second piston (28) is fixedly connected to a first spring (29) at the end away from the mounting plate (27), and the first spring (29) is fixedly connected to a first air chamber (12) at the end away from the second piston (28).

3. The pipe jacking construction device for municipal pipelines according to claim 1, characterized in that, The damping and shock absorption mechanism includes a damping housing (14) fixedly connected to one end of the mounting plate (27), a guide rod (30) slidably connected inside the damping housing (14), and a buffer plate (26) fixedly connected to one side of the guide rod (30).

4. The pipe jacking construction device for municipal pipelines according to claim 3, characterized in that, The guide rod (30) is fixedly connected to a third piston (31) at the end away from the buffer plate (26). The third piston (31) has a damping hole (32) inside. The third piston (31) is fixedly connected to a second spring (33). The second spring (33) is fixedly connected to the damping housing (14).

5. The pipe jacking construction device for municipal pipelines according to claim 1, characterized in that, The pipe jacking mechanism includes a primary hydraulic cylinder (3) fixedly connected to the upper part of the frame (1), a primary jacking iron (4) fixedly connected to one end of the primary hydraulic cylinder (3), a secondary hydraulic cylinder (5) fixedly connected to the upper part of the primary jacking iron (4), and a secondary jacking iron (6) fixedly connected to one end of the secondary hydraulic cylinder (5).

6. The pipe jacking construction device for municipal pipelines according to claim 5, characterized in that, The front end of the secondary top iron (6) is fixedly connected to a pad (13), and the front end of the secondary top iron (6) is provided with a pipe (7).

7. The pipe jacking construction device for municipal pipelines according to claim 1, characterized in that, The frame (1) is fixedly connected to slide rails (2) on both sides, and the upper part of the slide rails (2) is slidably connected to a primary top iron (4) and a secondary top iron (6).

8. The pipe jacking construction device for municipal pipelines according to claim 1, characterized in that, The adjustment mechanism includes an adjustment housing (10) fixedly connected to both sides of the frame (1), a motor (16) is provided inside the adjustment housing (10), and an adjustment component is provided at the output end of the motor (16).

9. The pipe jacking construction device for municipal pipelines according to claim 8, characterized in that, The adjustment assembly includes a first gear (17) provided at the output end of a motor (16), the first gear (17) being meshed with a second gear (18), the second gear (18) being fixedly connected to an adjustment groove (19), a threaded rod (20) being meshed inside the adjustment groove (19), an adjustment plate (35) being fixedly connected to the threaded rod (20), and a guide plate (9) being fixedly connected to the adjustment plate (35).

10. The construction method of the pipe jacking construction device for municipal pipelines according to claim 1, characterized in that, Includes the following steps: Step 1: According to the specifications of the pipe (7), the guide plate (9) is moved by the adjustment mechanism so that the guide plate (9) is set on both sides of the pipe (7). Then, the pipe (7) is transported to the front end of the secondary top iron (6) on the upper part of the frame (1) by a winch or forklift. Step 2: After the pipe (7) is hoisted to the preset position, clean the mud and rust from the flange and the secondary top iron (6), align the flange on the pipe (7) with the secondary top iron (6), insert the bolts and manually tighten them initially, and use a hydraulic torque wrench to tighten the bolts symmetrically in two stages to fix them. Step 3: Start the pipe jacking mechanism to move the pipe (7). During the movement of the pipe (7), the transmission roller (15) connected inside the guide plate (9) will rotate. The rotation of the transmission roller (15) will drive the gas into the first air chamber (12). The air pressure inside the first air chamber (12) will increase, causing the mounting plate (27) to move, which in turn will drive the damping and shock absorption mechanism to move closer to the pipe (7). Step 4: The damping and shock absorption mechanism is closely attached to the surface of the pipe (7) to buffer the vibration generated during the pipe (7) jacking process and prevent the pipe from deviating.

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