Pipe jacking angle adjusting device for pipe jacking construction

Abstract

The utility model relates to the technical field of pipe jacking construction, and discloses a pipe jacking angle adjusting device for pipe jacking construction, which comprises a pivotal bearing, a hoisting plate and a first connecting plate, the hoisting plate and the first connecting plate are respectively arranged above and below the pivotal bearing, and the hoisting plate and the first connecting plate are respectively and fixedly connected with an inner ring and an outer ring of the pivotal bearing; the power mechanism is used for driving the pivotal bearing to rotate; the guide mechanism is used for guiding the jacking pipe in the jacking process; and the inclination angle adjusting mechanism is connected between the first connecting plate and the guide mechanism and used for adjusting the inclination angle of the guide mechanism. According to the utility model, the sliding friction form of an arc-shaped sliding block and an annular groove in the prior art is abandoned, and the slewing bearing is used as a core transmission part. An inner ring of the rotary bearing is connected with the hoisting plate, an outer ring of the rotary bearing is connected with the first connecting plate, the inner ring and the outer ring rotate relatively through the rolling body, the rolling friction coefficient is far lower than sliding friction, friction force is greatly reduced, and basic guarantee is provided for smoothness of angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking construction technology, and in particular to a pipe jacking angle adjustment device for pipe jacking construction. Background Technology

[0002] Pipe jacking angle adjustment devices play a crucial role in modern urban infrastructure construction and various pipeline laying projects. They are primarily used in trenchless environments to precisely control the jacking angle of the pipe, ensuring that the pipeline can be accurately laid underground according to the predetermined design slope.

[0003] Patent document CN220204874U discloses a pipe jacking angle adjustment device for pipe jacking construction, used to adjust the pipe jacking angle. The device includes a support plate, an adjustment mechanism, and an adjustment plate. One end of the central rod in the adjustment mechanism is rotatably connected to the bottom of the support plate, and the other end is fixedly connected to the adjustment plate. It works in conjunction with a second driving component consisting of a motor, a drive gear, and a driven gear to rotate the adjustment plate, thereby adjusting the jacking angle of the pipe.

[0004] However, this existing technology has some shortcomings that urgently need to be addressed. During angle adjustment, the connecting column is subjected to a downward pulling force from the structure, which increases the friction between the arc-shaped slider and the annular groove. The arc-shaped slider is difficult to slide within the annular groove, which further makes the horizontal rotation mechanism difficult to operate smoothly and prone to jamming during angle adjustment. It is difficult to achieve precise and convenient angle control, which seriously affects the efficiency and quality of construction and makes it difficult to meet the complex and ever-changing needs of modern pipe jacking construction.

[0005] Developing a convenient and precise angle adjustment device for pipe jacking construction has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The present invention aims to provide a pipe jacking angle adjustment device for pipe jacking construction to overcome the shortcomings mentioned above.

[0007] In order to achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A pipe jacking angle adjustment device for pipe jacking construction, comprising:

[0009] A slewing bearing, a lifting plate and a first connecting plate respectively disposed above and below the slewing bearing, wherein the lifting plate and the first connecting plate are fixedly connected to the inner ring and the outer ring of the slewing bearing, respectively;

[0010] A power mechanism for driving the rotation of the slewing bearing;

[0011] A guiding mechanism is used to guide the pipe jacking process; and

[0012] An angle adjustment mechanism is connected between the first connecting plate and the guide mechanism, and the angle adjustment mechanism is used to adjust the tilt angle of the guide mechanism.

[0013] Furthermore, the outer ring sidewall of the slewing bearing is provided with an external gear ring;

[0014] The power mechanism includes:

[0015] The drive gear rotatably connected to the hoisting plate meshes with the external gear ring for transmission, and

[0016] A power assembly used to drive the rotation of the drive gear.

[0017] Furthermore, the power assembly includes a worm gear and a worm shaft rotatably connected above the hoisting plate, the worm gear being coaxially and fixedly connected to the drive gear, and the worm shaft meshing with the worm gear.

[0018] Furthermore, the power assembly also includes:

[0019] A housing is provided around the worm gear and worm, with one end of the worm passing through the housing and connected to a handwheel.

[0020] Furthermore, the guiding mechanism includes:

[0021] Two support frames are spaced apart in the horizontal direction. The support frames are in the form of a ring structure and are fixedly connected to each other by multiple connecting rods.

[0022] A plurality of guide frames slide through the support frame, the guide frames being located radially along the same virtual circle. One end of each support frame located inside the support frame is rotatably connected to a guide roller, the guide roller being used for rolling connection with the jacking pipe; and

[0023] A plurality of threaded rods are threadedly connected to a plurality of guide frames in a one-to-one correspondence. The threaded rods are located in the radial direction of the virtual circle and are rotatably connected to the guide frames.

[0024] Furthermore, the threaded rod passes through one end of the support frame located on the periphery of the support frame and is fixedly connected to a rotating wheel.

[0025] Furthermore, the tilt adjustment mechanism includes:

[0026] A second connecting plate is fixedly connected to the lower surface of the first connecting plate. The lower end of the second connecting plate is hinged with a first connecting lug. The lower end of the first connecting lug is fixedly connected to a third connecting plate. The third connecting plate is fixedly connected to the two support frames.

[0027] Along the length of the connecting rod, there are telescopic components spaced apart from the second connecting plate. One end of the telescopic component is fixedly connected to the first connecting plate, and the other end of the telescopic component is hinged to the third connecting plate.

[0028] Furthermore, the telescopic component is a hydraulic cylinder fixedly connected to the lower surface of the first connecting plate, and the movable end of the hydraulic cylinder is hinged with a second connecting lug, which is fixedly connected to the third connecting plate.

[0029] Furthermore, multiple hanging rods are fixedly installed on the upper surface of the hoisting plate.

[0030] Compared with the prior art, this utility model has at least the following advantages:

[0031] (1) This utility model abandons the sliding friction form of the arc-shaped slider and the annular groove in the prior art, and uses a slewing bearing as the core transmission component. The inner ring of the slewing bearing is connected to the lifting plate, and the outer ring is connected to the first connecting plate. The inner and outer rings achieve relative rotation through rolling elements. The rolling friction coefficient is much lower than that of sliding friction, which greatly reduces the friction force and provides a basic guarantee for the smoothness of angle adjustment.

[0032] (2) An external gear ring is installed on the outer ring of the slewing bearing, which is matched with the drive gear and worm gear transmission assembly. The worm gear has self-locking and transmission smoothness, and can uniformly transmit torque to the drive gear, which then drives the slewing bearing to rotate smoothly through the external gear ring, avoiding jamming caused by friction and achieving uniform and smooth angle adjustment. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of the pipe jacking angle adjustment device for pipe jacking construction according to this utility model;

[0035] Figure 2 This is an assembly diagram of the lifting plate, slewing bearing, drive gear, and power assembly components of this utility model.

[0036] Reference numerals: 1. Slewing bearing; 2. Lifting plate; 3. First connecting plate; 4. External gear ring; 5. Drive gear; 6. Worm gear; 7. Worm; 8. Housing; 9. Handwheel; 10. Support frame; 11. Connecting rod; 12. Guide frame; 13. Guide roller; 14. Threaded rod; 15. Rotary wheel; 16. Second connecting plate; 17. First connecting lug; 18. Third connecting plate; 19. Hydraulic cylinder; 20. Second connecting lug; 21. Lifting rod. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Reference Figure 1-2 This utility model provides a pipe jacking angle adjustment device for pipe jacking construction, which mainly consists of a slewing bearing 1, a hoisting plate 2, a first connecting plate 3, a power mechanism, a guiding mechanism, and an inclination adjustment mechanism.

[0040] The lifting plate 2 and the first connecting plate 3 are located above and below the slewing bearing 1, respectively. The lifting plate 2 is fixedly connected to the inner ring of the slewing bearing 1 with high-strength bolts, and the first connecting plate 3 is also fixedly connected to the outer ring of the slewing bearing 1 with high-strength bolts to ensure stable and reliable transmission between components during pipe jacking construction. The slewing bearing 1 is preferably a high-precision, heavy-duty slewing bearing, in which smooth relative rotation is achieved between the inner and outer rings through rolling elements. It can withstand large axial forces, radial forces, and overturning moments, ensuring the stability and reliability of the device during pipe jacking construction.

[0041] An external gear ring 4 is provided on the outer ring sidewall of the slewing bearing 1. The power mechanism mainly includes a drive gear 5 rotatably connected to the lifting plate 2 and a power component for driving the drive gear 5 to rotate. The drive gear 5 is located below the lifting plate 2, and the drive gear 5 meshes precisely with the external gear ring 4 for transmission. The central shaft of the drive gear 5 is rotatably connected to the lifting plate 2 through a bearing. The bearing is a sealed ball bearing, which can effectively prevent dust and debris from entering and ensure the smooth rotation of the drive gear 5.

[0042] The power assembly includes a worm gear 6 and a worm 7 rotatably connected above the lifting plate 2. The worm gear 6 is fixedly connected to the drive gear 5 via a coaxial key, and the worm 7 precisely meshes with the worm gear 6. The shaft end of the worm 7 is rotatably connected to the mounting base of the lifting plate 2 via a bearing, which is also a sealed ball bearing.

[0043] For ease of operation and protection, the power assembly also includes a housing 8 surrounding the worm gear 6 and worm 7, effectively protecting them from external impacts and dust corrosion. One end of the worm 7 passes through the housing 8 and is connected to a handwheel 9 for easy gripping and operation by construction personnel. By rotating the handwheel 9, the worm 7 is rotated, which in turn drives the worm gear 6 and the drive gear 5 to rotate, thereby adjusting the angle of the first connecting plate 3.

[0044] The guiding mechanism includes two support frames 10 spaced apart horizontally. Each support frame 10 has a ring-shaped structure, is welded from thick steel plates, and has a cross-sectional shape that is circular on the inside and polygonal on the outside, providing high strength and rigidity. The two support frames 10 are fixedly connected by multiple connecting rods 11, which are welded to the support frames 10 to ensure the reliability and stability of the connection. The number of connecting rods 11 is rationally arranged according to the size and strength requirements of the support frames 10, and they are generally evenly distributed on the annular circumference of the support frames 10.

[0045] Several guide frames 12 slide through the support frame 10, and the guide frames 12 are located radially on the same virtual circle. One end of each guide frame 12 passes through a sliding hole on the support frame 10 and can slide freely radially within the sliding hole. The size of the sliding hole matches the shape of the guide frame 12, ensuring smooth sliding of the guide frame 12 while preventing it from shaking or shifting during sliding. A guide roller 13 is rotatably connected to one end of each guide frame 12 located inside the support frame 10. The guide roller 13 is made of high-strength bearing steel, and its surface is finely machined and polished to ensure smooth rolling when in contact with the outer wall of the jacking pipe. The guide roller 13 is rotatably connected to the guide frame 12 via a bearing. The bearing is a sealed ball bearing, capable of withstanding large radial and axial forces, ensuring stable rotation of the guide roller 13 during the jacking process. The diameter of the guide roller 13 is rationally designed according to the outer diameter of the jacking pipe to ensure a tight fit with the outer wall of the jacking pipe and provide good guidance.

[0046] A plurality of threaded rods 14 are threadedly connected to a plurality of guide frames 12 in a one-to-one manner. The threaded rods 14 are located in the radial direction of the virtual circle and are rotatably connected to the guide frames 12. One end of the threaded rod 14 is rotatably connected to the guide frame 12 via a bearing, and the other end passes through the support frame 10 around the perimeter of the support frame 10, and a rotating wheel 15 is fixedly connected to the outside of the support frame 10. The rotating wheel 15 is convenient for construction personnel to hold and rotate. The diameter of the rotating wheel 15 is reasonably designed to facilitate the application of sufficient torque by construction personnel to adjust the rotation of the threaded rods 14, thereby precisely controlling the position of the guide frame 12 on the support frame 10 to adapt to jacking pipes of different diameters and jacking requirements.

[0047] The tilt adjustment mechanism includes a second connecting plate 16 fixedly connected to the lower surface of the first connecting plate 3. The second connecting plate 16 is made of thick steel plate and is fixedly connected to the first connecting plate 3 by high-strength bolts. The connection area is precisely flattened to ensure the strength and reliability of the connection. A first connecting lug 17, made of high-strength alloy steel, is hinged to the lower end of the second connecting plate 16 via a hinge shaft. The hinge shaft is precision machined to ensure good rotational performance of the hinge. A third connecting plate 18, also made of thick steel plate, is fixedly connected to the lower end of the first connecting lug 17 by welding or high-strength bolts to ensure the strength and stability of the connection. The third connecting plate 18 is fixedly connected to the two support frames 10 by high-strength bolts. The connection area is precisely positioned and tightened to ensure a stable connection between the tilt adjustment mechanism and the guide mechanism during pipe jacking construction.

[0048] Along the length of the connecting rod, telescopic components are spaced apart from the second connecting plate 16. One end of the telescopic component is fixedly connected to the first connecting plate 3, and the other end is hinged to the third connecting plate 18. The telescopic component uses a hydraulic cylinder 19, which is fixedly connected to the lower surface of the first connecting plate 3. Its fixing part is fastened with high-strength bolts to ensure that it will not loosen or shift during operation. The movable end of the hydraulic cylinder 19 is hinged to a second connecting lug 20, which is fixedly connected to the third connecting plate 18 with high-strength bolts. The hydraulic cylinder 19 uses high-performance seals to ensure that there is no oil leakage under high-pressure working conditions, which would affect the adjustment accuracy and service life. The hydraulic cylinder 19 is controlled by an electric hydraulic pump station. By controlling the inlet and outlet of hydraulic oil, the telescopic movement of the hydraulic cylinder 19 is realized, thereby precisely adjusting the tilt angle of the guide mechanism to meet the angle requirements of the pipe jacking under different construction environments.

[0049] Multiple hanging rods 21 are fixedly installed on the upper surface of the lifting plate 2. The hanging rods 21 are made of high-strength alloy steel, and their upper ends are fixedly connected to the lifting plate 2 by welding or high-strength bolts. The number of hanging rods 21 is rationally arranged according to the size and strength requirements of the lifting plate 2, generally evenly distributed around the perimeter of the lifting plate 2 to ensure the balance and stability of the device during lifting. During pipe jacking construction, the hanging rods 21 are connected to the lifting equipment, facilitating the lifting of the entire device to the designated construction location, improving construction efficiency and convenience.

[0050] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A pipe jacking angle adjustment device for pipe jacking construction, characterized in that, include: A slewing bearing (1), a lifting plate (2) and a first connecting plate (3) respectively disposed above and below the slewing bearing (1), the lifting plate (2) and the first connecting plate (3) being fixedly connected to the inner ring and outer ring of the slewing bearing (1) respectively; A power mechanism for driving the rotation of the slewing bearing (1); A guiding mechanism is used to guide the pipe jacking process; and An inclination adjustment mechanism is connected between the first connecting plate (3) and the guide mechanism, and the inclination adjustment mechanism is used to adjust the inclination angle of the guide mechanism.

2. The pipe jacking angle adjustment device for pipe jacking construction according to claim 1, characterized in that, The outer ring sidewall of the rotary bearing (1) is provided with an external gear ring (4); The power mechanism includes: The drive gear (5) rotatably connects to the hoisting plate (2), and the drive gear (5) meshes with the external gear ring (4) for transmission. A power assembly for driving the drive gear (5) to rotate.

3. The pipe jacking angle adjustment device for pipe jacking construction according to claim 2, characterized in that, The power assembly includes a worm gear (6) and a worm (7) rotatably connected above the hoisting plate (2). The worm gear (6) is coaxially and fixedly connected to the drive gear (5), and the worm (7) meshes with the worm gear (6).

4. The pipe jacking angle adjustment device for pipe jacking construction according to claim 3, characterized in that, The power assembly also includes: A housing (8) is provided around the worm gear (6) and the worm (7), with one end of the worm (7) passing through the housing (8) and connected to a handwheel (9).

5. The pipe jacking angle adjustment device for pipe jacking construction according to claim 1, characterized in that, The guiding mechanism includes: Two support frames (10) are spaced apart in the horizontal direction. The support frames (10) are in the form of a ring structure. The two support frames (10) are fixedly connected by multiple connecting rods (11). A plurality of guide frames (12) slide through the support frame (10), the plurality of guide frames (12) being located in the radial direction of the same virtual circle, and a guide roller (13) is rotatably connected to one end of the support frame (10) located inside the support frame (10), the guide roller (13) being used for rolling connection with the jacking pipe; and A plurality of threaded rods (14) are threadedly connected to a plurality of guide frames (12) in a one-to-one correspondence. The threaded rods (14) are located in the radial direction of the virtual circle and are rotatably connected to the guide frames (12).

6. The pipe jacking angle adjustment device for pipe jacking construction according to claim 5, characterized in that, The threaded rod (14) passes through one end of the support frame (10) located around the periphery of the support frame (10) and is fixedly connected to a wheel (15).

7. The pipe jacking angle adjustment device for pipe jacking construction according to claim 6, characterized in that, The tilt adjustment mechanism includes: A second connecting plate (16) is fixedly connected to the lower surface of the first connecting plate (3). The lower end of the second connecting plate (16) is hinged with a first connecting ear (17). The lower end of the first connecting ear (17) is fixedly connected with a third connecting plate (18). The third connecting plate (18) is fixedly connected to the two support frames (10). Along the length of the connecting rod (11), there is a telescopic component spaced apart from the second connecting plate (16). One end of the telescopic component is fixedly connected to the first connecting plate (3), and the other end of the telescopic component is hinged to the third connecting plate (18).

8. The pipe jacking angle adjustment device for pipe jacking construction according to claim 7, characterized in that, The telescopic component is a hydraulic cylinder (19) fixedly connected to the lower surface of the first connecting plate (3). The movable end of the hydraulic cylinder (19) is hinged with a second connecting ear (20), and the second connecting ear (20) is fixedly connected to the third connecting plate (18).

9. The pipe jacking angle adjustment device for pipe jacking construction according to any one of claims 1 to 8, characterized in that, Multiple hanging rods (21) are fixedly installed on the upper surface of the hoisting plate (2).

Images