Pipe jacking machine for pipeline construction

Abstract

The utility model discloses a pipe push bench for pipeline construction, which relates to the technical field of pipeline construction and comprises a base, a first top plate and a second top plate, a support is fixedly connected to the surface of the base, a sliding rail is fixedly connected to the side wall of the support, sliding grooves are formed in the side walls of the first top plate and the second top plate, and the first top plate and the second top plate are slidably connected with the sliding rail through the sliding grooves. A first oil cylinder is arranged between the side wall of the base and the first top plate, a second oil cylinder is arranged between the first top plate and the second top plate, two limiting plates are fixedly connected to the side wall of the second top plate, the two limiting plates are symmetrically arranged, limiting mechanisms are arranged on the side walls of the two limiting plates, and a supporting mechanism used for supporting a pipeline is arranged on the surface of the base; the pipe jacking device is large in propelling force, long in pipe jacking distance and more stable in propelling process, balanced propelling force is beneficial to preventing deviation and deformation of pipelines, construction precision and safety are improved, the pipe jacking device can adapt to pipelines with different pipe diameters, adaptability is high, pipeline moving resistance is small, and pipeline moving is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to a pipeline construction pipe jacking machine. Background Art

[0002] Pipe jacking is a trenchless construction method, a pipeline burial construction technology with no excavation or less excavation. Pipe jacking construction is to use the jacking force generated by the jacking equipment in the working pit to overcome the friction between the pipeline and the surrounding soil, push the pipeline into the soil according to the designed slope, and transport the soil away. After one section of the pipe is pushed into the soil layer, the second section of the pipe is pushed in. The principle is to use the thrust of the main jacking cylinder and the pipeline room, relay room, etc. to push the tool pipe or tunnel boring machine from the working pit through the soil layer and lift it into the receiving pit.

[0003] After searching, it was found that a Chinese patent with announcement number CN220816755U discloses a pipe jacking machine for pipeline construction, including a pipe jacking machine box and a pipe protection mechanism. Connecting arms are fixedly connected to both ends of one side of the pipe jacking machine box, a pipe protection mechanism is arranged at the outer end of the connecting arm, a fixed base is arranged inside the pipe protection mechanism, the fixed base is fixedly connected to the outer end of the connecting arm, a slide groove is arranged on both sides of the upper surface of the fixed base, and a limited slider is slidably connected inside the slide groove. The utility model is a pipe jacking machine for pipeline construction. When the concrete pipe is ejected from the pipe jacking machine, it will enter into two groups of rotating pipe unloading plates. The rotating pipe unloading plates are pulled by an electric push rod to slowly rotate the rotating pipe unloading plates to a vertical state. During the slow rotation of the rotating pipe unloading plates, the concrete pipe at the upper end of the rotating pipe unloading plates slowly falls to the position where the underground pipeline is laid. This method can prevent the pipeline from falling directly, thereby preventing the pipeline from being damaged due to falling.

[0004] The above utility model has the following problems:

[0005] 1. During the pipe jacking construction process, hydraulic equipment is needed to push the pipe forward. Generally, the pipe is pushed forward directly by the hydraulic rod. However, the outer diameter of the pipe is different in different constructions, and the hydraulic rod generally cannot be adjusted in position, so it cannot adapt to pipes of various specifications. The adaptability is poor and has certain limitations when used.

[0006] 2. During the process of pipe jacking construction, the pipeline is generally placed directly on the base, lacking support, limitation and guidance for the pipeline. There is sliding friction between the pipeline and the base, and the resistance of pipe jacking is large, which can easily cause damage to the pipeline.

[0007] Therefore, those skilled in the art provide a pipe jacking machine for pipeline construction to solve the problems raised in the above background technology. Utility Model Content

[0008] The utility model aims to provide a pipe jacking machine for pipeline construction to solve the problems raised in the above-mentioned background technology.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A pipe jacking machine for pipeline construction comprises a base, a first top plate and a second top plate, wherein a bracket is fixedly connected to the surface of the base, a slide rail is fixedly connected to the side wall of the bracket, slide grooves are provided on the side walls of the first top plate and the second top plate, the first top plate and the second top plate are slidably connected to the slide rails through the slide grooves, a first oil cylinder is arranged between the side wall of the base and the first top plate, a second oil cylinder is arranged between the first top plate and the second top plate, two groups of limit plates are fixedly connected to the side wall of the second top plate, the two limit plates are symmetrically arranged, and the side walls of the two limit plates are both provided with limit mechanisms, and a support mechanism for supporting the pipeline is arranged on the surface of the base.

[0011] As a further solution of the utility model: the limiting mechanism includes a movable groove, a threaded rod, a threaded sleeve, a movable block and a rubber wheel, the side wall of the limiting plate is provided with two groups of symmetrically arranged movable grooves, the inner side wall of the movable groove is rotatably connected with a threaded rod, and the surface of the threaded rod is threadedly connected with a threaded sleeve.

[0012] As a further solution of the utility model: a movable block is fixedly connected to the surface of the threaded sleeve, the movable block is slidably connected to the movable groove, and a rubber wheel is fixedly connected to the side wall of the movable block.

[0013] As a further solution of the utility model: the side wall of the limit plate is provided with two groups of symmetrically arranged movable grooves and embedded grooves, the inner side walls of the embedded grooves are fixedly connected with servo motors, and the power output end of the servo motor is fixedly connected to one end of the threaded rod.

[0014] As a further solution of the utility model: the supporting mechanism includes an electro-hydraulic push rod, a fixed ear plate and a guide wheel, a plurality of groups of electro-hydraulic push rods are fixedly connected to the surface of the base, and the movable end of the electro-hydraulic push rod is fixedly connected to the fixed ear plate.

[0015] As a further solution of the utility model: the inner wall of the fixed ear plate is rotatably connected with a guide wheel, and the guide wheel abuts against the surface of the pipeline.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The first top plate is pushed to move by the first oil cylinder, and the movement of the first top plate drives the movement of the second top plate. The second top plate is pushed to move by the second oil cylinder to realize the secondary movement of the second top plate. The double oil cylinder system can provide greater propulsion force. The jacking distance is long. The two oil cylinders can better disperse the jacking force, making the propulsion process more stable. The balanced propulsion force helps to prevent the pipeline from deflection and deformation, and improve the accuracy and safety of construction. The servo motor is running, and the rotation of the servo motor power output end drives the threaded rod to rotate. The rotation of the threaded rod drives the threaded sleeve to move. The threaded sleeve can only move along the direction of the active groove under the limit of the active block and the active groove. The movement of the threaded sleeve drives the movement of the active block, and the movement of the active block drives the movement of the rubber wheel. The pipe wall is clamped and limited by the opposite movement of the two rubber wheels. The limit operation is simple and convenient, and it is easy to use. At the same time, it can adapt to pipes of different diameters, with strong adaptability and easy to use.

[0018] 2. The movable end of the electro-hydraulic push rod is lifted and lowered to drive the fixed ear plate to move, and the movement of the fixed ear plate drives the guide wheel to move, thereby adjusting the height of the guide wheel, which can effectively support the pipeline. The guide wheel abuts against the surface of the pipeline, changing the sliding friction into rolling friction, effectively reducing the friction coefficient, reducing the resistance to pipeline movement, and facilitating pipeline movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the structure of a pipe jacking machine for pipeline construction.

[0020] Figure 2 It is a schematic diagram of the plane structure of the second top plate in a pipe jacking machine for pipeline construction.

[0021] Figure 3 The present invention is a schematic diagram of the structure of a limiting mechanism in a pipe jacking machine for pipeline construction.

[0022] Figure 4 A pipe jacking machine for pipeline construction Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 The present invention is a structural schematic diagram of a supporting mechanism of a pipe jacking machine for pipeline construction.

[0024] In the figure: 1. base; 2. bracket; 3. slide rail; 4. first top plate; 5. second top plate; 6. first oil cylinder; 7. second oil cylinder; 8. slide groove; 9. limit plate; 10. movable groove; 11. threaded rod; 12. threaded sleeve; 13. movable block; 14. rubber wheel; 15. embedded groove; 16. servo motor; 17. electro-hydraulic push rod; 18. fixed ear plate; 19. guide wheel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0026] Reference Figure 1-4 The embodiment provides a pipe jacking machine for pipeline construction, including a base 1, a first top plate 4 and a second top plate 5. A bracket 2 is fixedly connected to the surface of the base 1, and a slide rail 3 is fixedly connected to the side wall of the bracket 2. A slide groove 8 is opened on the side walls of the first top plate 4 and the second top plate 5. The first top plate 4 and the second top plate 5 are slidably connected to the slide rail 3 through the slide groove 8. A first oil cylinder 6 is arranged between the side wall of the base 1 and the first top plate 4, and a second oil cylinder 7 is arranged between the first top plate 4 and the second top plate 5. Two sets of limit plates 9 are fixedly connected to the side wall of the second top plate 5. The two limit plates 9 are symmetrically arranged. The side walls are provided with a limiting mechanism, the surface of the base 1 is provided with a supporting mechanism for supporting the pipeline, the limiting mechanism includes a movable groove 10, a threaded rod 11, a threaded sleeve 12, a movable block 13 and a rubber wheel 14, the side wall of the limiting plate 9 is provided with two sets of symmetrically arranged movable grooves 10, the inner wall of the movable groove 10 is rotatably connected with a threaded rod 11, the surface of the threaded rod 11 is threadedly connected with a threaded sleeve 12, the surface of the threaded sleeve 12 is fixedly connected with a movable block 13, the movable block 13 is slidably connected to the movable groove 10, the side wall of the movable block 13 is fixedly connected with a rubber wheel 14, the side wall of the limiting plate 9 is provided with two sets of symmetrically arranged movable grooves 10 The movable groove 10 is embedded in the groove 15, and the inner wall of the embedded groove 15 is fixedly connected with a servo motor 16. The power output end of the servo motor 16 is fixedly connected to one end of the threaded rod 11; the first top plate 4 is pushed to move by the first oil cylinder 6, and the movement of the first top plate 4 drives the second top plate 5 to move, and the second top plate 5 is pushed to move by the second oil cylinder 7 to achieve the secondary movement of the second top plate 5. The double oil cylinder system can provide greater propulsion force, and the jacking distance is long. The two oil cylinders can better disperse the jacking force, making the propulsion process more stable, and the balanced propulsion force helps to prevent the pipeline from deflection and deformation, and improve With high construction precision and safety, the servo motor 16 is running, and the power output end of the servo motor 16 rotates to drive the threaded rod 11 to rotate, and the rotation of the threaded rod 11 drives the threaded sleeve 12 to move. The threaded sleeve 12 can only move along the direction of the movable groove 10 under the limitation of the movable block 13 and the movable groove 10, and the movement of the threaded sleeve 12 drives the movable block 13 to move, and the movement of the movable block 13 drives the rubber wheel 14 to move. The pipeline wall is clamped and limited by the opposite movement of the two rubber wheels 14. The limiting operation is simple and convenient, and it is easy to use. At the same time, it can adapt to pipelines of different diameters, has strong adaptability, and is easy to use. Example 2

[0027] Reference Figure 5 This embodiment is based on the previous embodiment, and is different from the previous embodiment in that the supporting mechanism includes an electro-hydraulic push rod 17, a fixed ear plate 18 and a guide wheel 19. A plurality of groups of electro-hydraulic push rods 17 are fixedly connected to the surface of the base 1. The movable end of the electro-hydraulic push rod 17 is fixedly connected to the fixed ear plate 18. The inner wall of the fixed ear plate 18 is rotatably connected to the guide wheel 19, and the guide wheel 19 abuts against the surface of the pipeline. The fixed ear plate 18 is driven to move by the lifting of the movable end of the electro-hydraulic push rod 17, and the movement of the fixed ear plate 18 drives the guide wheel 19 to move, thereby adjusting the height of the guide wheel 19, which can effectively support the pipeline. The guide wheel 19 abuts against the surface of the pipeline, changing the sliding friction into rolling friction, effectively reducing the friction coefficient, reducing the resistance to pipeline movement, and facilitating pipeline movement.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pipe jacking machine for pipeline construction, characterized in that: The utility model comprises a base (1), a first top plate (4) and a second top plate (5), wherein a bracket (2) is fixedly connected to the surface of the base (1), a side wall of the bracket (2) is fixedly connected to a slide rail (3), the side walls of the first top plate (4) and the second top plate (5) are both provided with a slide groove (8), the first top plate (4) and the second top plate (5) are slidably connected to the slide rail (3) through the slide groove (8), a first oil cylinder (6) is arranged between the side wall of the base (1) and the first top plate (4), a second oil cylinder (7) is arranged between the first top plate (4) and the second top plate (5), two groups of limit plates (9) are fixedly connected to the side wall of the second top plate (5), the two limit plates (9) are symmetrically arranged, and the side walls of the two limit plates (9) are both provided with a limit mechanism, and a support mechanism for supporting a pipeline is arranged on the surface of the base (1).

2. A pipe jacking machine for pipeline construction according to claim 1, characterized in that: The limiting mechanism comprises a movable groove (10), a threaded rod (11), a threaded sleeve (12), a movable block (13) and a rubber wheel (14); the side wall of the limiting plate (9) is provided with two groups of symmetrically arranged movable grooves (10); the inner side wall of the movable groove (10) is rotatably connected to the threaded rod (11); and the surface of the threaded rod (11) is threadedly connected to the threaded sleeve (12).

3. A pipe jacking machine for pipeline construction according to claim 2, characterized in that: A movable block (13) is fixedly connected to the surface of the threaded sleeve (12), the movable block (13) is slidably connected to the movable groove (10), and a rubber wheel (14) is fixedly connected to the side wall of the movable block (13).

4. A pipe jacking machine for pipeline construction according to claim 1, characterized in that: The side wall of the limit plate (9) is provided with two groups of symmetrically arranged movable grooves (10) and embedded grooves (15), the inner side walls of the embedded grooves (15) are fixedly connected to servo motors (16), and the power output end of the servo motor (16) is fixedly connected to one end of the threaded rod (11).

5. A pipe jacking machine for pipeline construction according to claim 1, characterized in that: The support mechanism comprises an electro-hydraulic push rod (17), a fixed ear plate (18) and a guide wheel (19); a plurality of groups of electro-hydraulic push rods (17) are fixedly connected to the surface of the base (1); and a movable end of the electro-hydraulic push rod (17) is fixedly connected to the fixed ear plate (18).

6. A pipe jacking machine for pipeline construction according to claim 5, characterized in that: The inner side wall of the fixed ear plate (18) is rotatably connected to a guide wheel (19), and the guide wheel (19) abuts against the surface of the pipeline.

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