Pipeline butt joint device for water conservancy construction

Abstract

The invention relates to the technical field of pipeline construction equipment, and discloses a pipeline butting device for water conservancy construction, which comprises a chassis, walking wheels and a hydraulic pump station, the hydraulic pump station is arranged above one end of the chassis, the end part of the chassis is slidably connected with a traction chassis, and a plurality of walking wheels are arranged on both sides of the chassis and the traction chassis; the chassis and the traction chassis are each provided with an alignment assembly, and each alignment assembly comprises a support, a pipeline inner supporting assembly, a first eccentric wheel module, a second eccentric wheel module, a first hydraulic motor and a second hydraulic motor. Compared with the prior art, the pipe fitting butt joint device has the beneficial effects that the alignment assembly clamps the pipe fittings to be in butt joint in the pipeline in an inner supporting and clamping mode, the requirement for the space of a construction site is avoided, and the inner supporting assembly can automatically adapt to the placing orientation of the pipe fittings to be in butt joint in a multi-dimensional mode for clamping; the pipe fitting to be butted can be clamped only by approximately aligning the pipe fitting to be butted with the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline construction equipment, in particular to a pipeline docking device for water conservancy construction. Background Art

[0002] During the laying process of water conservancy project pipelines, it is necessary to butt-joint the pipes. Currently, common pipe butt-jointing equipment often adopts a working method of clamping two pipes from the outside for butt-joining. For example, Publication No.: CN119163814A is a pipe guide butt-jointing equipment for water conservancy pipe network construction. The device form recorded in the device is clamped on the outside of the pipe, so it needs to ensure that there is enough equipment installation space around the pipe when it works.

[0003] Some water conservancy project pipelines need to be laid underground. The construction site of such pipelines often needs to be carried out in an excavated pipeline trench. Such a construction environment is difficult to provide the working space required by the existing pipeline docking equipment and does not have the corresponding working conditions. In addition, the existing pipeline docking equipment requires the pipe fittings to be installed on the equipment fixture first. For some large-sized and heavy pipe fittings, large-scale engineering machinery is required to accurately install the pipe fittings to the docking equipment, which has high requirements on the equipment operation technology of the staff. After the existing docking equipment completes one pipeline docking, if you want to continue the next docking operation, you need to remove the device from the docked position before moving to the next construction position, and the overall work efficiency is low. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing pipe docking is difficult to be applied in the construction of underground pipelines and has certain operating difficulties when used, and a pipe docking device for water conservancy construction is provided.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a pipeline docking device for water conservancy construction, which includes a chassis, walking wheels and a hydraulic pump station. The hydraulic pump station is arranged above one end of the chassis, and a traction chassis is arranged in a sliding connection at the end. Multiple walking wheels are arranged on both sides of the chassis and the traction chassis.

[0006] An alignment assembly is provided on the chassis and the traction chassis, and the alignment assembly includes a bracket, a pipe inner support assembly, a first eccentric wheel module, a second eccentric wheel module, a first hydraulic motor and a second hydraulic motor, wherein the first eccentric wheel module is fixed to one end of the bracket, the second eccentric wheel module is slidably connected to the bracket, and the inner support assembly is hingedly provided on the first eccentric wheel module and the second eccentric wheel module.

[0007] The pipeline inner support assembly includes an axial rod, a first ball head, a sliding sleeve and an inner support roller. The first ball head is arranged at the root of the axial rod, the inner support roller is arranged at the end of the axial rod, the sliding sleeve is slidably arranged on the axial rod, a second ball head is arranged at the root of the sliding sleeve, the first eccentric wheel module is internally rotatably connected to the first eccentric wheel, the second eccentric wheel module is internally rotatably connected to the second eccentric wheel, the first eccentric wheel is provided with a first spherical hole that matches the spherical surface of the first ball head, and the second eccentric wheel is provided with a second spherical hole that matches the spherical surface of the second ball head.

[0008] Furthermore, a plurality of first swing arms and second swing arms are hingedly arranged on the outer side of the end of the axial rod, the ends of the first swing arms and the second swing arms are hingedly connected to the inner support roller, the end of the sliding sleeve is hingedly arranged with a connecting rod, and the end of the connecting rod is hingedly connected to the inner support roller.

[0009] Furthermore, the first hydraulic motor and the second hydraulic motor are arranged on the outside of the bottom of the first eccentric wheel module, the first eccentric wheel module is provided with a first gear, the first eccentric wheel is provided with a first gear ring around the outside of the first eccentric wheel to mesh with the first gear, and the output end of the first hydraulic motor is dynamically connected to the first gear.

[0010] Furthermore, a transmission rod is rotatably connected to one side of the bracket, the second eccentric wheel module is slidably connected to the transmission rod, a second gear is rotatably connected inside the second eccentric wheel module, the second gear is sleeved on the transmission rod, a second gear ring is provided on the outer side of the second eccentric wheel to mesh with the second gear, and the output end of the second hydraulic motor is dynamically connected to the transmission rod.

[0011] Furthermore, the bracket is provided with a plurality of guide rods, which are arranged in the same direction as the axis of the transmission rod, and the second eccentric wheel module is slidably connected to the bracket via the guide rods.

[0012] Furthermore, a plurality of guide columns are provided at the end of the traction chassis and are slidably connected to the chassis. A first hydraulic cylinder is provided at the end of the chassis, and a power end of the first hydraulic cylinder is connected to the traction chassis.

[0013] Furthermore, a second hydraulic cylinder is provided on the top of the first eccentric wheel module, a spring piston cylinder is provided on the top of the second eccentric wheel module, and a power end of the second hydraulic cylinder is connected to a free end of the spring piston cylinder.

[0014] Furthermore, the first eccentric wheel module is provided with a first annular encoder for detecting the first eccentric wheel, and the second eccentric wheel module is provided with a second annular encoder for detecting the second eccentric wheel.

[0015] The advantages of the present invention compared with the prior art are:

[0016] The butted pipe fittings are clamped in the pipeline by means of internal support clamping, which has no requirements on the space of the construction site and can adapt to the construction site environment of underground pipeline laying.

[0017] The internal support components of the device can adapt to the placement orientation of the pipe fittings to be connected in multiple dimensions for clamping. The pipe fittings to be connected can be clamped by simply aligning them roughly with the pipeline, without the need for on-site staff to perform complicated installation operations.

[0018] The device does not need to be installed with the pipeline and can quickly repeat the docking operation many times, which has high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the position of the guide column of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the alignment component of the present invention.

[0022] Figure 4 It is a schematic diagram of the position of the hydraulic motor of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the inner support assembly of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the second gear of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the first gear of the present invention.

[0026] Figure 8 It is a working schematic diagram of the present invention.

[0027] Fig. 9 It is a working schematic diagram of the inner support assembly of the present invention.

[0028] Fig.10 It is a working schematic diagram of the eccentric wheel module of the present invention.

[0029] Fig.11 It is a working schematic diagram of the traction chassis of the present invention.

[0030] As shown in the figure: 1. chassis; 2. traction chassis; 3. guide column; 4. walking wheel; 5. alignment assembly; 6. hydraulic pump station; 7. first hydraulic cylinder; 8. bracket; 9. first eccentric wheel module; 10. second eccentric wheel module; 11. first hydraulic motor; 12. second hydraulic motor; 13. second hydraulic cylinder; 14. guide rod; 15. spring piston cylinder; 16. transmission rod; 17. inner support assembly; 18. axial rod; 19. first swing arm; 20. second swing arm; 21. inner support roller; 22. sliding sleeve; 23. connecting rod; 24. second ball head; 25. first ball head; 26. first eccentric wheel; 27. second eccentric wheel; 28. first spherical hole; 29. ​​second spherical hole; 30. first gear ring; 31. second gear ring; 32. second gear; 33. first gear; 34. control console; 35. first ring encoder; 36. second ring encoder. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] Combined with Figure 1 and attached Figure 2 A pipeline docking device for water conservancy construction includes a chassis 1, walking wheels 4 and a hydraulic pump station 6. The hydraulic pump station 6 is arranged above one end of the chassis 1, and a traction chassis 2 is slidably connected to the end. Multiple walking wheels 4 are arranged on both sides of the chassis 1 and the traction chassis 2.

[0033] Reference Figure 8 When the device is working, it enters the pipeline from the opening at the end of the laid pipeline, and moves in the pipeline through the walking wheels 4. The driving equipment and suspension structure required by the walking wheels 4 belong to the existing pipeline robot technology and are not further described in this application. When the device is working inside the pipeline, a control console 34 is set at the opening at the end of the pipeline. The control console 34 is equipped with a control computer and a cable reel. The cable reel is wound with a power cable and a control data cable. The power cable is connected to the pipeline docking device for water conservancy construction to provide power. The control data cable transmits the control signal of the control computer to the pipeline docking device for water conservancy construction and transmits the return signal of each sensor installed in the device.

[0034] Combined with Figure 1 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6The chassis 1 and the traction chassis 2 are both provided with an alignment assembly 5, and the alignment assembly 5 includes a bracket 8, a pipeline inner support assembly 17, a first eccentric wheel module 9, a second eccentric wheel module 10, a first hydraulic motor 11 and a second hydraulic motor 12, wherein the first eccentric wheel module 9 is fixed to one end of the bracket 8, the second eccentric wheel module 10 is slidably connected to the bracket 8, the inner support assembly 17 is hingedly arranged on the first eccentric wheel module 9 and the second eccentric wheel module 10, the first eccentric wheel module 9 is internally rotatably connected with a first eccentric wheel 26, and the second eccentric wheel module A second eccentric wheel 27 is rotatably connected inside the block 10. The pipe inner support assembly 17 includes an axial rod 18, a first ball head 25, a sleeve 22 and an inner support roller 21. The first ball head 25 is arranged at the root of the axial rod 18, the inner support roller 21 is arranged at the end of the axial rod 18, the sleeve 22 is slidably arranged on the axial rod 18, and a second ball head 24 is arranged at the root of the sleeve 22. The first eccentric wheel 26 is provided with a first spherical hole 28 spherically matched with the first ball head 25, and the second eccentric wheel 27 is provided with a second spherical hole 29 spherically matched with the second ball head 24.

[0035] The relative positions of the first spherical hole 28 and the second spherical hole 29 are adjusted by rotating the first eccentric wheel 26 and the second eccentric wheel 27 respectively, so that the shaft rod 18 is deflected and tilted. The direction of the shaft rod 18 is determined by the direction of the line connecting the centers of the first spherical hole 28 and the second spherical hole 29.

[0036] Combined with Figure 4 , Attachment Figure 6 and attached Figure 7 The first hydraulic motor 11 and the second hydraulic motor 12 are arranged on the outer side of the bottom of the first eccentric wheel module 9, a first gear 33 is arranged inside the first eccentric wheel module 9, a first gear ring 30 is arranged on the outer side of the first eccentric wheel 26 to mesh with the first gear 33, the output end of the first hydraulic motor 11 is dynamically connected with the first gear 33, a transmission rod 16 is rotatably connected to one side of the bracket 8, the second eccentric wheel module 10 is slidably connected to the transmission rod 16, a second gear 32 is rotatably connected inside the second eccentric wheel module 10, the second gear 32 is sleeved on the transmission rod 16, a second gear ring 31 is arranged on the outer side of the second eccentric wheel 27 to mesh with the second gear 32, the output end of the second hydraulic motor 12 is dynamically connected with the transmission rod 16, the bracket 8 is provided with a plurality of guide rods 14, the guide rods 14 and the axes of the transmission rod 16 are arranged in the same direction, and the second eccentric wheel module 10 is slidably connected to the bracket 8 through the guide rods 14.

[0037] The second eccentric wheel module 10 slides on the guide rod 14, and the second gear 32 in the second eccentric wheel module 10 slides on the transmission rod 16. By setting the cross-section of the transmission rod 16 to a polygon and setting a through hole matching the second gear 32 at the axis center, the second gear 32 can slide on the transmission rod 16 while maintaining power transmission.

[0038] The first hydraulic motor 11 and the second hydraulic motor 12 are controlled to rotate the first eccentric wheel 26 and the second eccentric wheel 27 independently to change the relative position of the first spherical hole 28 and the second spherical hole 29 .

[0039] Combined with Figure 3 , Attachment Figure 4 and attached Figure 5 A plurality of first swing arms 19 and second swing arms 20 are hingedly arranged on the outer side of the end of the axial rod 18, the ends of the first swing arms 19 and the second swing arms 20 are hingedly connected to the inner support roller 21, a connecting rod 23 is hingedly arranged at the end of the sliding sleeve 22, and the end of the connecting rod 23 is hingedly connected to the inner support roller 21, a second hydraulic cylinder 13 is arranged on the top of the first eccentric wheel module 9, a spring piston cylinder 15 is arranged on the top of the second eccentric wheel module 10, and the power end of the second hydraulic cylinder 13 is connected to the free end of the spring piston cylinder 15.

[0040] The second hydraulic cylinder 13 is controlled to adjust the position of the second eccentric wheel module 10, so that the position of the sleeve 22 on the shaft rod 18 changes, and the sleeve 22 moves toward the end of the shaft rod 18 and drives the inner support roller 21 to open outward through the connecting rod 23. The four hinge points of the first swing arm 19 and the second swing arm 20 are set as a parallelogram to ensure that the supporting direction of the inner support roller 21 is always parallel to the shaft rod 18. The inner support roller 21 is continuously opened outward to fit in contact with the inner wall of the pipe. The cross-sectional circle of the inner support roller 21 is tangent to the cross-sectional circle of the inner wall of the pipe. After multiple inner support rollers 21 are opened and fit in contact with the inner wall of the pipe, the shaft rod 18 and the pipe can remain coaxial.

[0041] When the first hydraulic motor 11 and the second hydraulic motor 12 cause the first eccentric wheel 26 and the second eccentric wheel 27 to rotate independently, the sleeve 22 will slide on the axial rod 18, and the second eccentric wheel module 10 and the second hydraulic cylinder 13 are connected through the spring piston cylinder 15. When the first hydraulic motor 11 and the second hydraulic motor 12 are working, the second eccentric wheel module 10 can be slightly moved to ensure that the first eccentric wheel 26 and the second eccentric wheel 27 can rotate normally.

[0042] Combined with Figure 2 A plurality of guide columns 3 are provided at the end of the traction chassis 2 and are slidably connected to the chassis 1 . A first hydraulic cylinder 7 is provided at the end of the chassis 1 , and a power end of the first hydraulic cylinder 7 is connected to the traction chassis 2 .

[0043] When the inner support roller 21 opens and fits against the inner wall of the pipe to form a stable support, controlling the first hydraulic cylinder 7 to drive the traction chassis 2 to move can enable the alignment assembly 5 arranged on the traction chassis 2 to drive the supported pipe to move together, thereby changing the distance between the interfaces of the two pipes to be connected.

[0044] Combined with Figure 3 and attached Figure 4The first eccentric wheel module 9 is provided with a first annular encoder 35 for detecting the first eccentric wheel 26, and the second eccentric wheel module 10 is provided with a second annular encoder 36 for detecting the second eccentric wheel 27. The first annular encoder 35 and the second annular encoder 36 are used to detect the rotation angles of the first eccentric wheel 26 and the second eccentric wheel 27 in real time, and the control computer on the console 34 uses this to determine the direction of the axis rod 18.

[0045] The workflow of the butt-joining pipeline of the present invention is as follows:

[0046] Reference Figure 8 , move the entire device to the entrance at the end of the construction pipeline, connect the power cable and control data cable of the control console 34 to the device, and the staff sets the working pressure of the hydraulic pump station 6 according to the inner diameter and weight of the pipeline to be docked. After the setting is completed, the device is controlled by the control console 34 to enter the pipeline from the entrance at the end of the pipeline and move to the docking construction position.

[0047] Reference Fig. 9 , the staff operates external equipment, such as a crane, to move the new pipe to be connected to the connection point of the construction pipeline and perform a rough interface alignment. The first hydraulic cylinder 7 is remotely controlled through the control console 34 to extend the traction chassis 2 together with the alignment component 5 above it into the pipe. After reaching the extension limit of the first hydraulic cylinder 7, the alignment component 5 on the chassis 1 is remotely controlled to make the second hydraulic cylinder 13 extend the second eccentric wheel module 10 while keeping the first hydraulic motor 11 and the second hydraulic motor 12 unpowered, so that the pipeline inner support component 17 is opened. Since the first hydraulic motor 11 and the second hydraulic motor 12 are unpowered, during the process of the pipeline inner support component 17 opening and fitting with the inner wall of the pipeline, the shaft rod 18 gradually aligns with the direction of the pipeline and drives the first eccentric wheel 26 and the second eccentric wheel 27 to rotate in the opposite direction. After the pipeline inner support component 17 is completely in contact with the inner wall of the pipeline, the second hydraulic cylinder 13 is locked and pressure is supplied to the first hydraulic motor 11 and the second hydraulic motor 12 to lock and maintain the position of the first eccentric wheel 26 and the second eccentric wheel 27 at this time.

[0048] In this state, the axle rod 18 on the chassis 1 is located at the pipeline axis.

[0049] Reference Fig. 9 and attached Fig.10After determining the position of the shaft rod 18 on the chassis 1, the alignment assembly 5 on the traction chassis 2 is remotely controlled, and the above operation is repeated to make the shaft rod 18 on the traction chassis 2 coincide with the axis of the pipe to be connected. In this state, the azimuth deviation of the two shaft rods 18 is compared through the control console 34, and the first hydraulic motor 11 and the second hydraulic motor 12 on the traction chassis 2 are controlled to rotate. First, the first eccentric wheel 26 and the second eccentric wheel 27 are respectively rotated until the line connecting the first spherical hole 28 and the second spherical hole 29 is parallel to the axis of the pipeline. During this process, the pipe to be connected is driven by the inner support assembly 17 to swing and rotate until it is parallel to the pipeline, and then the first eccentric wheel 26 and the second eccentric wheel 27 are synchronously rotated until the shaft rod 18 on the traction chassis 2 coincides with the shaft rod 18 on the chassis 1 and is in line. During this process, the pipe to be connected is driven by the inner support assembly 17 to rotate around the axis of the first eccentric wheel 26 and the second eccentric wheel 27 and is completely aligned with the pipeline.

[0050] Reference Fig.11 , after confirming that the pipe fitting to be connected is aligned with the construction pipeline, the first hydraulic cylinder 7 is controlled to retract, and the traction chassis 2 together with the alignment assembly 5 above it drives the pipe fitting to be connected to move horizontally toward the pipeline interface until the interface is fully fitted. At this time, the hydraulic inner support clamping of the water conservancy construction pipeline docking device is maintained, and the staff performs welding or flange docking on the interface externally. After the docking process is completed, the device can continue to be remotely controlled to perform the docking operation of the next pipe fitting, or the docking operation can be ended, and the remote control device can reverse and leave the pipeline.

[0051] The present invention and its implementation methods are described above, and such description is not restrictive, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by it, and does not deviate from the purpose of the invention, and does not creatively design a structure and implementation method similar to the technical solution, they should all fall within the protection scope of the present invention.

Claims

1. A pipe docking device for water conservancy construction, comprising a chassis (1), running wheels (4) and a hydraulic pump station (6), wherein the hydraulic pump station (6) is arranged above one end of the chassis (1), and a traction chassis (2) is arranged at the end in a sliding connection, and a plurality of running wheels (4) are arranged on both sides of the chassis (1) and the traction chassis (2), characterized in that: The chassis (1) and the traction chassis (2) are both provided with an alignment assembly (5), the alignment assembly (5) comprising a bracket (8), a pipe inner support assembly (17), a first eccentric wheel module (9), a second eccentric wheel module (10), a first hydraulic motor (11) driving the first eccentric wheel module (9), and a second hydraulic motor (12) driving the second eccentric wheel module (10), wherein the first eccentric wheel module (9) is fixed to an end portion of one side of the bracket (8), the second eccentric wheel module (10) is slidably connected to the bracket (8), the root of the pipe inner support assembly (17) is hinged to the first eccentric wheel module (9), and the middle portion is hinged to the second eccentric wheel module (10); The pipeline inner support assembly (17) comprises an axial rod (18), a first ball head (25), a sliding sleeve (22) and an inner support roller (21), wherein the first ball head (25) is arranged at the root of the axial rod (18), the inner support roller (21) is arranged at the end of the axial rod (18), the sliding sleeve (22) is slidably sleeved and arranged outside the axial rod (18), a second ball head (24) is arranged at the root of the sliding sleeve (22), a first eccentric wheel (26) is rotatably connected to the inside of the first eccentric wheel module (9), a second eccentric wheel (27) is rotatably connected to the inside of the second eccentric wheel module (10), the first eccentric wheel (26) is provided with a first spherical hole (28) that matches the spherical surface of the first ball head (25), and the second eccentric wheel (27) is provided with a second spherical hole (29) that matches the spherical surface of the second ball head (24).

2. A pipe docking device for water conservancy construction according to claim 1, characterized in that: A plurality of first swing arms (19) and second swing arms (20) are hingedly arranged on the outer side of the end of the axial rod (18); the ends of the first swing arms (19) and the second swing arms (20) are hingedly connected to the inner support roller (21); a connecting rod (23) is hingedly arranged on the end of the sliding sleeve (22); and the end of the connecting rod (23) is hingedly connected to the inner support roller (21).

3. A pipe docking device for water conservancy construction according to claim 1, characterized in that: The first hydraulic motor (11) is arranged outside the bottom of the first eccentric wheel module (9), a first gear (33) is arranged inside the first eccentric wheel module (9), a first gear ring (30) is arranged around the outside of the first eccentric wheel (26) and meshes with the first gear (33), and the output end of the first hydraulic motor (11) is connected to the first gear (33) in a power connection.

4. A pipe docking device for water conservancy construction according to claim 1, characterized in that: A transmission rod (16) is rotatably connected to one side of the bracket (8), the second eccentric wheel module (10) is slidably connected to the transmission rod (16), a second gear (32) is rotatably connected inside the second eccentric wheel module (10), the second gear (32) is sleeved on the transmission rod (16), a second gear ring (31) is provided on the outer side of the second eccentric wheel (27) and meshes with the second gear (32), and the output end of the second hydraulic motor (12) is power-connected to the transmission rod (16).

5. A pipe docking device for water conservancy construction according to claim 4, characterized in that: The bracket (8) is provided with a plurality of guide rods (14), the guide rods (14) and the transmission rod (16) are arranged in the same direction along their axes, and the second eccentric wheel module (10) is slidably connected to the bracket (8) via the guide rods (14).

6. A pipe docking device for water conservancy construction according to claim 1, characterized in that: A plurality of guide columns (3) are provided at the end of the traction chassis (2) and are slidably connected to the chassis (1); a first hydraulic cylinder (7) is provided at the end of the chassis (1); and a power end of the first hydraulic cylinder (7) is connected to the traction chassis (2).

7. A pipe docking device for water conservancy construction according to claim 1, characterized in that: A second hydraulic cylinder (13) is provided on the top of the first eccentric wheel module (9), a spring piston cylinder (15) is provided on the top of the second eccentric wheel module (10), and a power end of the second hydraulic cylinder (13) is connected to a free end of the spring piston cylinder (15).

8. The pipe docking device for water conservancy construction according to claim 1, characterized in that: The first eccentric wheel module (9) is provided with a first annular encoder (35) for detecting the first eccentric wheel (26), and the second eccentric wheel module (10) is provided with a second annular encoder (36) for detecting the second eccentric wheel (27).

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