A device for correcting the deviation of a pipe jacking

Abstract

The utility model discloses a kind of deviation rectifying devices for pipe jacking, including pipe jacking machine body, support shell, elastic pad, drive assembly, mounting head, second driving device, resistance arm and top head, wherein, two sections of installation grooves are set in the outer wall of support shell, elastic pad is fixedly connected in the inner wall of installation groove, drive assembly is installed in the inner wall one end of support shell, mounting head is installed on drive assembly, second driving device is installed on mounting head, the output end of resistance arm is fixedly connected with second driving device one end, the inner wall of top head is fixedly connected in the other end fixed connection of resistance arm. Thus, drive assembly, second driving device etc. are integrated in support shell inner wall, realize azimuth adjustment by single driving arm, simplify structure and reduce space occupation, avoid conflict with pipe jacking machine core component, solve the problem that the existing hydraulic deviation rectifying device is poor in adaptability in small and medium diameter pipe jacking machine due to many components and large space requirement.

Description

Technical Field

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

[0002] Currently, in pipe jacking construction, hydraulically driven correction devices are mostly used for pipe jacking machine correction. Typically, multiple sets of hydraulic cylinders are arranged circumferentially in the tool pipe or intermediate station of the pipe jacking machine. These are used in conjunction with laser guidance sensors to monitor the attitude deviation of the pipe jacking machine. By differentially controlling the thrust and stroke of each set of cylinders, the force distribution of the pipe jacking machine is adjusted, thereby pushing the pipe jacking machine back to the design axis.

[0003] This type of hydraulically driven correction device requires multiple components such as oil cylinders, hydraulic pumps, oil pipes, and control systems. The overall structure is complex and occupies a large amount of internal space in the pipe jacking machine. Especially in small and medium diameter pipe jacking machines, the limited internal space is difficult to accommodate multiple sets of hydraulic components and pipelines. It is easy to cause spatial conflicts with the core components of the pipe jacking machine such as the cutterhead drive and slag removal, resulting in limited adaptability of the correction mechanism and difficulty in flexibly achieving accurate correction at all angles. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a pipe jacking correction device. A support shell with two elastic pads is fixed at the tail of the pipe jacking machine body. The shell contains a drive assembly with a first drive device and a drive arm. The drive assembly is equipped with an mounting head with a second drive device. The second drive device is connected to an abutment arm and an arc-shaped top head, and is equipped with a limiting and protective structure. The first drive device adjusts the orientation of the top head, and the second drive device pushes the top head to squeeze the elastic pads to generate soil reaction force to achieve correction. This solution simplifies the structure of the correction device, reduces the space occupied inside the pipe jacking machine, and solves the problem that the existing hydraulic correction device has poor adaptability in small and medium diameter pipe jacking machines due to the large number of components and large space requirements.

[0006] To achieve the above objectives, this utility model proposes a pipe jacking correction device, comprising a pipe jacking machine body, a support shell, an elastic pad, a drive assembly, a mounting head, a second drive device, an abutment arm, and a top head. The support shell is fixedly connected to the tail of the pipe jacking machine body. The outer wall of the support shell has two mounting grooves. The elastic pad is fixedly connected to the inner wall of the mounting groove. The drive assembly is mounted on one end of the inner wall of the support shell. The mounting head is mounted on the drive assembly. The second drive device is mounted on the mounting head. One end of the abutment arm is fixedly connected to the output end of the second drive device. The inner wall of the top head is fixedly connected to the other end of the abutment arm.

[0007] This utility model discloses a pipe jacking correction device. The support shell is fixed to the tail of the pipe jacking machine body. When correction is required, the first drive device, which acts as a drive motor, drives the drive arm to rotate. The drive arm drives the mounting head, the second drive device, the contact arm, and the top head to rotate to the corresponding mounting slot through the fixed sleeve plate. Then, the second drive device, which is in the form of a hydraulic cylinder, drives the contact arm to drive the top head to squeeze the elastic pad in the mounting slot. After the elastic pad deforms, it generates a reaction force with the soil, pushing the pipe jacking machine body to adjust its posture to achieve correction. This device integrates the drive components, the second drive device, etc., into the inner wall of the support shell. It achieves orientation adjustment through a single drive arm, which simplifies the structure and reduces space occupation. It avoids conflict with the core components of the pipe jacking machine and solves the problem of poor adaptability of existing hydraulic correction devices in small and medium diameter pipe jacking machines due to the large number of components and large space requirements.

[0008] In addition, the pipe jacking correction device proposed above according to this utility model may also have the following additional technical features:

[0009] Specifically, the drive assembly includes a first drive device, a drive arm, and a fixed sleeve. The first drive device is installed on one end of the inner wall of the support housing. One end of the drive arm is rotatably connected to the other end of the inner wall of the support housing. The other end of the drive arm is fixedly connected to the output end of the first drive device. The fixed sleeve is fixedly sleeved on the outer wall of the drive arm. The mounting head is fixedly connected to the outer wall of the fixed sleeve.

[0010] Specifically, the outer wall of the fixed sleeve is symmetrically fixedly connected with support arms, and the ends of the two support arms are fixedly connected with limit heads, which are slidably sleeved on the abutment arms.

[0011] Specifically, the inner wall of the support housing is fixedly connected to one end of a plurality of connecting arms in a circumferential array, and the other end of the plurality of connecting arms is fixedly connected to a protective sleeve plate, which is sleeved on the drive arm.

[0012] Specifically, the outer wall of the top head has an arc-shaped structure, and the outer wall of the top head is covered with a soft rubber pad.

[0013] Specifically, a limiting sleeve is fixedly connected to the other end of the inner wall of the supporting housing, and one end of the driving arm is rotatably connected to the inner wall of the limiting sleeve.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the pipe jacking correction device of this utility model;

[0017] Figure 2 This is a schematic diagram of the support shell structure according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the support shell according to an embodiment of the present invention;

[0019] Figure 4 This is one embodiment of the present utility model. Figure 3 Enlarged structural diagram at point A in the middle.

[0020] As shown in the figure:

[0021] 1. Pipe jacking machine body; 2. Support housing; 21. Mounting groove; 3. Elastic pad;

[0022] 4. Drive assembly; 41. First drive device; 42. Drive arm; 421. Protective sleeve; 422. Connecting arm; 43. Fixed sleeve; 431. Support arm; 432. Limiting head;

[0023] 5. Mounting head; 6. Second drive device; 7. Abutting arm; 8. Top head. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0025] The following description, in conjunction with the accompanying drawings, describes the pipe jacking correction device according to an embodiment of the present invention.

[0026] like Figures 1-4 As shown, the pipe jacking correction device of this utility model embodiment may include a pipe jacking machine body 1, a support shell 2, an elastic pad 3, a drive assembly 4, a mounting head 5, a second drive device 6, an abutment arm 7, and a jacking head 8.

[0027] The support shell 2 is fixedly connected to the tail of the pipe jacking machine body 1.

[0028] It should be noted that the fixed connection between the support shell 2 and the tail of the pipe jacking machine body 1 described in this embodiment allows the correction force to be transmitted from the rear end of the pipe jacking machine body 1 to the whole, avoiding the obstruction or interference of core components such as the cutterhead at the front end of the pipe jacking machine body 1 from affecting the correction effect. At the same time, the tail position is far away from the soil excavation area, which can reduce the impact of soil disturbance on the connection stability of the support shell 2 and ensure the force balance of the overall structure of the pipe jacking machine body 1 and the support shell 2 during the correction process.

[0029] The outer wall of the support housing 2 has two mounting grooves 21. The elastic pad 3 is fixedly connected to the inner wall of the mounting groove 21. The drive assembly 4 is installed at one end of the inner wall of the support housing 2, and the mounting head 5 is installed on the drive assembly 4.

[0030] It should be noted that, in this embodiment, when the elastic pad 3 is fixed in the two mounting grooves 21 on the outer wall of the support housing 2, its outer surface can be kept flush with the outer wall of the support housing 2, so as to avoid the elastic pad 3 generating additional frictional resistance with the soil during the jacking process. The drive component 4 is installed on the inner wall of the support housing 2, which can effectively utilize the internal space of the support housing 2 and avoid the drive component 4 from being worn due to direct contact with the external soil. The cooperation between the mounting head 5 and the drive component 4 provides a structural basis for the subsequent adjustment of the working position of the jacking head 8, and can flexibly adapt to the correction needs of different directions.

[0031] The second drive device 6 is mounted on the mounting head 5. One end of the abutment arm 7 is fixedly connected to the output end of the second drive device 6, and the inner wall of the top head 8 is fixedly connected to the other end of the abutment arm 7.

[0032] It should be noted that the assembly relationship between the second driving device 6 and the mounting head 5 described in this embodiment ensures that the driving force of the second driving device 6 is directly transmitted to the abutment arm 7. The rigid connection structure of the abutment arm 7 reduces force loss, making the squeezing force of the top head 8 on the elastic pad 3 more precise. The fixed connection between the top head 8 and the abutment arm 7 avoids the force deviation caused by the relative sliding between the two, ensuring that the deformation direction of the elastic pad 3 when squeezed is consistent with the direction required for correction, further improving the effectiveness of the correction action. The second driving device 6 is a hydraulic cylinder.

[0033] Specifically, the support housing 2 is fixed to the tail of the pipe jacking machine body 1. When correction is required, the drive assembly 4 drives the mounting head 5 to rotate, so that the second drive device 6, the contact arm 7 and the top head 8 are adjusted to the mounting groove 21 in the corresponding direction. Then, the second drive device 6, which acts as a hydraulic cylinder, drives the contact arm 7 to push the top head 8 to squeeze the elastic pad 3 in the mounting groove 21. After the elastic pad 3 is squeezed and deformed, it comes into contact with the surrounding soil and generates a reaction force, which in turn pushes the pipe jacking machine body 1 to adjust its posture to achieve correction. This solution integrates the drive assembly 4, the second drive device 6 and other components into the inner wall of the support housing 2, simplifies the overall structure by utilizing the tail space, reduces the occupation of the internal space of the pipe jacking machine, and avoids spatial conflicts with other core components. This solves the problem that the existing hydraulic correction device has poor adaptability in small and medium diameter pipe jacking machines due to the large number of components and large space requirements.

[0034] In one embodiment of this utility model, such as Figures 1-4 As shown, the drive assembly 4 includes a first drive device 41, a drive arm 42, and a fixed sleeve 43. The first drive device 41 is installed on one end of the inner wall of the support housing 2. One end of the drive arm 42 is rotatably connected to the other end of the inner wall of the support housing 2. The other end of the drive arm 42 is fixedly connected to the output end of the first drive device 41. The fixed sleeve 43 is fixedly sleeved on the outer wall of the drive arm 42. The mounting head 5 is fixedly connected to the outer wall of the fixed sleeve 43.

[0035] It should be noted that the drive assembly 4 described in this embodiment is directly and fixedly connected to the drive arm 42 through the first drive device 41, which can ensure that the power transmission is seamless and avoid drive lag caused by power loss. The fixed sleeve plate 43 and the drive arm 42 are designed to be fixedly connected, which can make the mounting head 5 rotate synchronously and stably with the drive arm 42, preventing the mounting head 5 from shifting or loosening during rotation. At the same time, the drive assembly 4 is integrated into the inner wall of the support shell 2, without occupying the core space inside the pipe jacking machine body 1, which further optimizes the spatial layout. The first drive device 41 is a drive motor.

[0036] Specifically, when it is necessary to adjust the orientation of the mandrel 8 to adapt to the correction requirements in different directions, the first drive device 41 is activated and drives the drive arm 42 to rotate on the inner wall of the support housing 2. The drive arm 42 simultaneously drives the fixed sleeve plate 43 and the mounting head 5 to rotate until the mandrel 8 is aligned with the elastic pad 3 at the target mounting groove 21. This structure achieves orientation adjustment through the cooperation of a single drive arm 42 and the fixed sleeve plate 43. Compared with the multiple sets of cylinders and pipelines of the existing hydraulic correction device, the number of components is greatly reduced, effectively saving space and solving the problem of poor adaptability of the existing hydraulic correction device in small and medium diameter pipe jacking machines due to the large number of components and space requirements.

[0037] In one embodiment of this utility model, such as Figures 1-4As shown, support arms 431 are symmetrically fixedly connected to the outer wall of the fixed sleeve 43. Limiting heads 432 are fixedly connected to the ends of the two support arms 431, and the limiting heads 432 are slidably sleeved on the contact arm 7.

[0038] It should be noted that the symmetrically arranged support arm 431 and limiting head 432 described in this embodiment can form a stable constraint on the abutment arm 7 from both sides, preventing the abutment arm 7 from lateral displacement or swaying when it extends and retracts under the drive of the second driving device 6. At the same time, the sliding sleeve design of the limiting head 432 and the abutment arm 7 can not only ensure the smooth extension and retraction of the abutment arm 7, but also accurately guide the movement trajectory of the abutment arm 7, ensuring that the top head 8 can accurately act on the preset position of the elastic pad 3.

[0039] In one embodiment of this utility model, such as Figures 1-4 As shown, the inner wall of the support housing 2 is fixedly connected to one end of a plurality of connecting arms 422 in a circumferential array, and the other end of the plurality of connecting arms 422 is fixedly connected to a protective sleeve 421, which is sleeved on the drive arm 42.

[0040] It should be noted that the circumferential array connecting arm 422 described in this embodiment can provide uniform support for the protective sleeve 421, ensuring that the protective sleeve 421 is stably fixed.

[0041] In one embodiment of this utility model, such as Figures 1-4 As shown, the outer wall of the top head 8 has an arc-shaped structure, and the outer wall of the top head 8 is covered with a soft rubber pad.

[0042] It should be noted that the arc-shaped outer wall of the top head 8 described in this embodiment can form a close contact with the surface of the elastic pad 3, increasing the contact area between the two and avoiding excessive local compression of the elastic pad 3 by the top head 8, which could lead to damage. The soft rubber pad covering the outer wall of the top head 8 can further buffer the force between the top head 8 and the elastic pad 3, reduce wear caused by rigid contact, and extend the service life of the elastic pad 3. At the same time, the soft rubber pad can increase the friction between the top head 8 and the elastic pad 3, preventing slippage when the top head 8 is squeezed.

[0043] In one embodiment of this utility model, such as Figures 1-4 As shown, a limiting sleeve is fixedly connected to the other end of the inner wall of the supporting housing 2, and one end of the driving arm 42 is rotatably connected to the inner wall of the limiting sleeve.

[0044] It should be noted that the limiting sleeve described in this embodiment can accurately position the rotating end of the drive arm 42, restrict the rotation trajectory of the drive arm 42, prevent the drive arm 42 from radially deviating during rotation, and ensure that the drive arm 42 always rotates along the preset axis. At the same time, the rotational connection design between the limiting sleeve and the drive arm 42 can reduce the frictional resistance when the drive arm 42 rotates, ensure that the drive arm 42 rotates smoothly, and improve the accuracy and efficiency of orientation adjustment.

[0045] In summary, the pipe jacking correction device of this embodiment has a support housing 2 fixed to the tail of the pipe jacking machine body 1. When correction is required, the first drive device 41, which is a drive motor, drives the drive arm 42 to rotate. The drive arm 42 drives the mounting head 5, the second drive device 6, the contact arm 7, and the top head 8 to rotate to the corresponding mounting groove 21 through the fixed sleeve plate 43. Then, the second drive device 6, which is in the form of a hydraulic cylinder, drives the contact arm 7 to drive the top head 8 to squeeze the elastic pad 3 in the mounting groove 21. After the elastic pad 3 deforms, it generates a reaction force with the soil, pushing the pipe jacking machine body 1 to adjust its posture to achieve correction. This device integrates the drive component 4, the second drive device 6, etc., into the inner wall of the support housing 2, and achieves orientation adjustment through a single drive arm 42. It simplifies the structure and reduces space occupation, avoids conflict with the core components of the pipe jacking machine, and solves the problem that the existing hydraulic correction device has poor adaptability in small and medium diameter pipe jacking machines due to the large number of components and large space requirements.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pipe jacking correction device, characterized in that, The components include the pipe jacking machine body (1), support shell (2), elastic pad (3), drive assembly (4), mounting head (5), second drive device (6), contact arm (7), and jacking head (8), wherein, The support housing (2) is fixedly connected to the tail of the pipe jacking machine body (1); The outer wall of the support housing (2) is provided with two mounting grooves (21), the elastic pad (3) is fixedly connected to the inner wall of the mounting groove (21), the drive assembly (4) is installed at one end of the inner wall of the support housing (2), and the mounting head (5) is installed on the drive assembly (4). The second driving device (6) is mounted on the mounting head (5), one end of the abutment arm (7) is fixedly connected to the output end of the second driving device (6), and the inner wall of the top head (8) is fixedly connected to the other end of the abutment arm (7).

2. The pipe jacking correction device according to claim 1, characterized in that, The drive assembly (4) includes a first drive device (41), a drive arm (42), and a fixed sleeve (43), wherein, The first driving device (41) is installed on one end of the inner wall of the support housing (2), one end of the driving arm (42) is rotatably connected to the other end of the inner wall of the support housing (2), and the other end of the driving arm (42) is fixedly connected to the output end of the first driving device (41). The fixing sleeve (43) is fixedly sleeved on the outer wall of the drive arm (42), and the mounting head (5) is fixedly connected to the outer wall of the fixing sleeve (43).

3. The pipe jacking correction device according to claim 2, characterized in that, The outer wall of the fixed sleeve (43) is symmetrically fixedly connected with support arms (431), and the ends of the two support arms (431) are fixedly connected with limit heads (432), and the limit heads (432) are slidably sleeved on the abutment arm (7).

4. The pipe jacking correction device according to claim 2, characterized in that, The inner wall of the support housing (2) is fixedly connected to one end of a plurality of connecting arms (422) in a circumferential array, and the other end of the plurality of connecting arms (422) is fixedly connected to a protective sleeve (421), which is sleeved on the drive arm (42).

5. The pipe jacking correction device according to claim 1, characterized in that, The outer wall of the top head (8) is an arc-shaped structure, and the outer wall of the top head (8) is covered with a soft rubber pad.

6. The pipe jacking correction device according to claim 2, characterized in that, A limiting sleeve is fixedly connected to the other end of the inner wall of the supporting housing (2), and one end of the driving arm (42) is rotatably connected to the inner wall of the limiting sleeve.

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