Pipe lifting machine capable of resisting multidirectional displacement and operation method of pipe lifting machine

Abstract

The invention belongs to the field of pipeline construction equipment, and particularly relates to a multidirectional displacement resistant pipe hoisting machine which comprises a vehicle body, a hoisting arm, a winch and a hoisting pipe seat, the hoisting arm, the winch and the hoisting pipe seat are arranged on the vehicle body, a guide wheel set is arranged on the hoisting pipe seat, and a turn-back wheel is arranged at the top end of the hoisting arm. The steel wire rope is led out from the winch, bypasses the turn-back wheel and the guide wheel set and then is connected with a pipeline needing to be hoisted, and the adjacent steel wire rope between the pipe hoisting seat and the pipeline is arranged in an inverted trapezoid shape. The invention further comprises an operation method of the pipe lifting machine, the distance of the steel wire rope extending to the pipeline is increased through the pipe lifting base, so that the steel wire rope forms a traction structure similar to a frustum shape, when the pipeline shakes, component force resisting shaking exists due to inclined traction of the steel wire rope, and energy generated when the pipeline shakes can be consumed through traction of the steel wire rope; and the function of resisting pipeline swinging is achieved, quick stopping of pipeline swinging is achieved, the pipeline positioning precision and the welding alignment stability can be improved, and the operation efficiency and the construction safety are improved.

Description

Technical Field

[0001] This invention belongs to the field of pipeline construction equipment, specifically relating to a pipe-laying machine resistant to multi-directional displacement and its operating method. Background Technology

[0002] As a core piece of equipment in pipeline construction, the pipe-laying machine is mainly responsible for processes such as pipe laying, trench placement, and weld alignment. Its operational stability directly affects the quality of pipeline installation and construction efficiency. With the development of pipeline projects towards longer distances and larger diameters, higher requirements are placed on the positioning accuracy and stability of pipelines during the lifting process.

[0003] Existing pipe-lifting machines mainly use hooks and wire ropes to lift pipes. The hook body can rotate, which makes the pipe prone to horizontal and vertical swaying and displacement during lifting. This requires manual pulling by personnel in conjunction with the pipe-lifting machine, which is inefficient and poses safety risks. Alternatively, multiple bindings can be used on the pipe, with two pipe-lifting machines operating simultaneously to resist possible displacement of the pipe while it is lifted in the air. This can effectively ensure the lifting effect of the pipe, but the equipment investment cost is high, and the simultaneous operation of two pipe-lifting machines on both sides of the pipe trench is easily restricted by the space of the construction site. Therefore, there is an urgent need for a method that can effectively resist this. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a pipe-lifting machine and its operation method that resists multi-directional displacement. It can actively suppress horizontal and vertical swaying displacement during pipe lifting, eliminating the need for manual traction or multiple equipment working together. While reducing equipment investment costs and adapting to complex site space constraints, it improves pipe positioning accuracy and welding joint stability, balancing work efficiency and construction safety.

[0005] The specific technical solution adopted in this invention is as follows:

[0006] A pipe-lifting machine resistant to multi-directional displacement includes a vehicle body and a boom and a winch mounted on the vehicle body. The cantilever end of the boom is hinged to a pipe-lifting seat. Multiple sets of wire ropes are arranged between the pipe-lifting seat and the winch. A guide wheel assembly is provided on the pipe-lifting seat. The guide wheel assembly is spaced apart along the axial direction of the pipe. A return wheel is provided at the top of the boom. The wire ropes are led out from the winch, pass over the return wheel and the guide wheel assembly, and then connect to the pipe to be lifted. The adjacent wire ropes between the pipe-lifting seat and the pipe are arranged in an inverted trapezoidal shape.

[0007] The cantilever end of the boom is provided with a swing shaft, which is hinged to the boom. The pipe seat is fixedly connected to the swing shaft. The upper end of the boom is also provided with a hydraulic motor. Drive gears are provided on both sides of the swing shaft. The output end of the hydraulic motor meshes with the drive gears for transmission. The pipe seat has the freedom to swing relative to the boom by means of the swing shaft.

[0008] The upper part of the pipe support is provided with a fixed sleeve and a telescopic sleeve. The end of the telescopic sleeve is provided with an end plate. The fixed sleeve is provided with two sets of hollow tubular cavities. The telescopic sleeve passes through the tubular cavities. There is one telescopic sleeve on each side of the fixed sleeve. The telescopic cylinder is provided in the tubular cavity of the fixed sleeve. The telescopic cylinder pushes the telescopic sleeve to slide relative to the fixed sleeve. The end plate has the freedom of movement to extend or retract relative to the fixed sleeve with the help of the telescopic sleeve.

[0009] The aforementioned pipe support has a U-shaped structure and is fitted and fixed with a fixing sleeve. An extension seat is provided at the upper end of the pipe support, and a rotary motor is provided on the extension seat. The pipe support and the extension seat are hinged together. A rotary gear is provided on the pipe support. The output end of the rotary motor meshes with the rotary gear for transmission. The pipe support has a degree of freedom to rotate relative to the extension seat with the help of the rotary motor.

[0010] The guide wheel assembly includes a first support wheel, a second support wheel, and a reversing wheel. The first support wheel and the second support wheel are arranged one above the other on the side of the end plate. The axes of the first support wheel and the second support wheel are perpendicular to each other. The reversing wheel is mounted on a mounting plate that is fixedly connected to the hanger seat. A reversing roller is also provided between the reversing wheel and the turning wheel.

[0011] The axis of the second support wheel is parallel to the telescopic direction of the telescopic sleeve. The second support wheel is connected to the end plate via a sliding seat. The second support wheel is rotatably mounted on the sliding seat. The sliding seat is slidably connected to the end plate. An anti-sway telescopic cylinder is provided on the end plate. The sliding seat has a degree of freedom of movement relative to the end plate by means of the anti-sway telescopic cylinder, allowing it to extend or retract.

[0012] The vehicle body is also equipped with an auxiliary traction arm, and an auxiliary traction rope is provided between the auxiliary traction arm and the boom.

[0013] A crossbeam is also provided below the pipe support. The upper end of the crossbeam is fixedly connected to a steel wire rope extending from the pipe support. The lower end of the crossbeam is provided with a sling and a hook. One end of the sling is fixedly connected to the crossbeam, and the other end is connected to the hook to form a detachable hook connection.

[0014] An operating method for a pipe-laying machine resistant to multi-directional displacement includes the following steps:

[0015] S1. Take two sets of crossbeams, wrap the sling around the pipe and connect it with the hook to form a closed loop around the pipe. The two sets of crossbeams are spaced apart in the axial direction of the pipe.

[0016] S2. The steel wire ropes between the pipe hanger and the pipe are arranged in an inverted trapezoidal shape, and the multiple steel wire ropes between the pipe and the pipe hanger form a frustum-shaped structure.

[0017] S3. The winch rewinds the pipe, lifting it and transferring it to the required location.

[0018] The beneficial effects of this invention are:

[0019] This invention uses a pipe hanger to increase the distance of the steel wire rope extending into the pipeline, so that the steel wire rope forms an approximately frustum-shaped traction structure. When the pipeline sways, the inclined traction of the steel wire rope provides a component force to resist the swaying, and the energy of the pipeline swaying can be consumed by the traction of the steel wire rope, which plays a role in resisting the swaying of the pipeline and realizing the rapid stopping of the pipeline swaying. This helps to improve the positioning accuracy of the pipeline and the stability of the welding joint, as well as the work efficiency and construction safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the middle suspension pipe support from the right view.

[0022] Figure 3 This is a schematic diagram showing the anti-sway telescopic cylinder when it is extended.

[0023] Figure 4 This is a schematic diagram showing the telescopic sleeve when it is extended.

[0024] Figure 5 This is a schematic diagram of the pipe support from a top-down view.

[0025] Figure 6 This is a schematic diagram of the telescopic sleeve extending when viewed from above.

[0026] In the attached diagram, 1. Vehicle body, 2. Crane boom, 3. Lifting pipe seat, 4. Turning wheel, 5. Swing shaft, 6. Drive gear, 7. Fixed sleeve, 8. Telescopic sleeve, 9. End plate, 10. Extension seat, 11. Angle motor, 12. Angle gear, 13. First support wheel, 14. Second support wheel, 15. Directional wheel, 16. Mounting plate, 17. Directional roller, 18. Sliding seat, 19. Anti-sway telescopic cylinder, 20. Auxiliary traction arm, 21. Auxiliary traction rope, 22. Crossbeam, 23. Sling, 24. Hook. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0028] Specific implementation examples Figure 1 As shown, the present invention is a pipe lifting machine resistant to multi-directional displacement, including a vehicle body 1 and a boom 2 and a winch mounted on the vehicle body 1. The cantilever end of the boom 2 is hinged to a pipe lifting seat 3. Multiple sets of wire ropes are arranged between the pipe lifting seat 3 and the winch. The pipe lifting seat 3 is equipped with a guide wheel assembly, which is spaced apart along the axial direction of the pipe. A return wheel 4 is provided at the top of the boom 2. The wire ropes are led out from the winch, pass around the return wheel 4 and the guide wheel assembly, and are connected to the pipe to be lifted. The adjacent wire ropes between the pipe lifting seat 3 and the pipe are arranged in an inverted trapezoidal shape.

[0029] This invention adds a pipe-lifting seat 3 to the boom 2 of an existing pipe-lifting machine, and through the pipe-lifting seat 3, extends multiple steel wire ropes from the winch laterally to increase the spacing, and then leads them to the pipe to be lifted, so that the pipe and the pipe-lifting seat 3 form an inverted frustum structure, so that when the pipe swings, the component of gravity of the pipe itself can resist the swinging tendency.

[0030] like Figure 1 As shown in the diagram, taking the pipe swinging towards the right as an example, the steel wire rope on the right tends to loosen, and the pipe swings under the traction of the steel wire rope on the left. At this time, the resultant force of the pipe and the steel wire rope on the left is directed to the left, opposite to the swing direction, thus suppressing the swing. In this case, when the pipe swings to the high point on the right and moves in the opposite direction, the loose steel wire rope on the right will tighten instantly when it swings to the low point, offsetting some of the swing energy. It can be seen that when the pipe is swinging, its swing motion can be quickly suppressed even without personnel involved in pulling, thus improving hoisting efficiency.

[0031] Furthermore, a swing shaft 5 is provided at the cantilever end of the boom 2, the swing shaft 5 is hinged to the boom 2, the pipe seat 3 is fixedly connected to the swing shaft 5, a hydraulic motor is also provided at the upper end of the boom 2, and drive gears 6 are provided on both sides of the swing shaft 5. The output end of the hydraulic motor meshes with the drive gears 6 for transmission, and the pipe seat 3 has the freedom to swing relative to the boom 2 by means of the swing shaft 5.

[0032] like Figure 2As shown, the pipe-lifting base 3 of the present invention has a swing freedom with an adjustable angle relative to the boom 2 by means of the swing shaft 5. In order to ensure safety during hoisting, the site is generally leveled. The body 1 of the pipe-lifting machine is leveled before the boom 2 is extended to prevent dangerous working conditions. However, since the location of the pipe trench may require the boom 2 to be lowered to reach it, when the boom 2 is lowered, the rotation of the hydraulic motor causes the drive gear 6 to rotate. The drive gear 6 is fixedly mounted on the swing shaft 5, so that the swing shaft 5 rotates a certain angle relative to the boom 2. After the swing shaft 5 levels the pipe-lifting base 3, the pipe hoisting operation can be carried out.

[0033] Furthermore, such as Figure 6 As shown, the upper part of the pipe support 3 is provided with a fixed sleeve 7 and a telescopic sleeve 8. The end of the telescopic sleeve 8 is provided with an end plate 9. The fixed sleeve 7 is provided with two sets of hollow tubular cavities. The telescopic sleeve 8 passes through the tubular cavities. There is one telescopic sleeve 8 on each side of the fixed sleeve 7. The telescopic cylinder is provided in the tubular cavity of the fixed sleeve 7. The telescopic cylinder pushes the telescopic sleeve 8 to slide relative to the fixed sleeve 7. The end plate 9 has the freedom of movement to extend or retract relative to the fixed sleeve 7 with the help of the telescopic sleeve 8.

[0034] like Figure 4 and Figure 6 As shown, the fixed sleeve 7 and the telescopic sleeve 8 form a telescopic fit with the help of a telescopic cylinder. Both the fixed sleeve 7 and the telescopic sleeve 8 are tubular structures. Since the telescopic cylinder is located inside the hollow fixed sleeve 7, it can be seen in the figure that the other end of the fixed sleeve 7 is provided with the hinge lug of the telescopic cylinder.

[0035] like Figure 4 As shown, during hoisting, in order to facilitate the fitting of the pipe, the telescopic sleeve 8 can be retracted first, so that the wire rope is in a natural hanging state, which makes it convenient for personnel to tie and fix the pipe. When it is necessary to adjust the angle of the wire rope on both sides of the pipe during or after hoisting, the telescopic sleeve 8 can be pushed out with the help of the telescopic cylinder. The end plates 9 on both sides move outward to form an inverted trapezoidal traction structure, thereby suppressing the swaying and displacement of the pipe along its axial direction.

[0036] The hanging pipe seat 3 has a U-shaped structure and is fitted and fixed with the fixing sleeve 7. An extension seat 10 is provided at the upper end of the hanging pipe seat 3. A rotary motor 11 is provided on the extension seat 10. The hanging pipe seat 3 and the extension seat 10 are hinged together. A rotary gear 12 is provided on the hanging pipe seat 3. The output end of the rotary motor 11 meshes with the rotary gear 12 for transmission. The hanging pipe seat 3 has a degree of freedom to rotate relative to the extension seat 10 by means of the rotary motor 11.

[0037] like Figure 2 and Figure 3As shown, when it is necessary to rotate the pipe seat 3 in the horizontal direction, the angle motor 11 is started to drive the angle gear 12, thereby driving the pipe seat 3, which is fixedly connected to the angle gear 12, to rotate. The angle motor 11 of the present invention is also a hydraulic motor. The hydraulic motor and the angle motor at the upper end of the boom 2 of the present invention are connected to the hydraulic pump station set on the vehicle body 1.

[0038] Furthermore, such as Figure 2 As shown, the guide wheel assembly includes a first support wheel 13, a second support wheel 14, and a reversing wheel 15. The first support wheel 13 and the second support wheel 14 are arranged one above the other on the side of the end plate 9. The axes of the first support wheel 13 and the second support wheel 14 are perpendicular to each other. The two support wheels cooperate to prevent the wire rope from shifting during hoisting and telescopic displacement. The reversing wheel 15 is mounted on a mounting plate 16 that is fixedly connected to the lifting pipe seat 3. A reversing roller 17 is also provided between the reversing wheel 15 and the turning wheel 4.

[0039] The axis of the second support wheel 14 is parallel to the extension and retraction direction of the telescopic sleeve 8. The second support wheel 14 is connected to the end plate 9 via a sliding seat 18. The second support wheel 14 is rotatably mounted on the sliding seat 18. The sliding seat 18 is slidably connected to the end plate 9. An anti-sway telescopic cylinder 19 is provided on the end plate 9. The sliding seat 18 has a degree of freedom of movement relative to the end plate 9 by means of the anti-sway telescopic cylinder 19.

[0040] like Figure 5 As shown, when the telescopic sleeve 8 extends or retracts, the first support wheel 13 and the reversing wheel 15 ensure the smooth transmission of the wire rope, while the reversing roller 17 guides the wire rope to the return wheel 4. The return wheel 4 guides the wire rope so that it extends along the boom 2 toward the winch located on the vehicle body 1, so that traction can be carried out smoothly.

[0041] like Figure 1 As shown, the vehicle body 1 is also equipped with an auxiliary traction arm 20, and an auxiliary traction rope 21 is provided between the auxiliary traction arm 20 and the boom 2.

[0042] The present invention increases the angle and distance at which the boom 2 can be suspended by setting up an auxiliary traction arm 20 and a traction rope, thereby further adapting to the requirements of the construction site.

[0043] A crossbeam 22 is also provided below the pipe support 3. The upper end of the crossbeam 22 is fixedly connected to a steel wire rope extending from the pipe support 3. The lower end of the crossbeam 22 is provided with a sling 23 and a hook 24. One end of the sling 23 is fixedly connected to the crossbeam 22, and the other end is connected to the hook 24 to form a detachable hook connection.

[0044] The present invention has four sets of wire ropes, which are located at the four corners of the pipe support 3. Two sets of wire ropes located on the same end plate 9 are connected to the two ends of the same crossbeam 22. The sling 23 located below the crossbeam 22 is just long enough to go around the pipe and connect to the hook 24, thus avoiding the pipe from swaying after being lifted due to the excessive length of the sling 23.

[0045] The four sets of wire ropes of this invention can be connected to the same winch shaft, so that the four sets of wire ropes move synchronously and are easy to control; they can also be connected to four different winches, and by using different wire lengths of the winches, the posture of the pipe after it is lifted can be flexibly controlled.

[0046] This invention also discloses an operating method for a pipe-laying machine resistant to multi-directional displacement, comprising the following steps:

[0047] S1. Before use, first reset the telescopic sleeve 8 and the anti-sway telescopic cylinder 19, take two sets of crossbeams 22, and wrap the sling 23 around the pipe and connect it with the hook 24 to form a closed loop around the pipe. The two sets of crossbeams 22 are set at intervals in the axial direction of the pipe. At this time, the wire rope is in an approximately vertical state under its own weight.

[0048] S2. Then the wire rope is contracted to make it taut. At this time, the pipe has not yet left the ground. The pipe's own weight is used to press the sling 23 and form a friction fit. Then the telescopic sleeve 8 and the anti-sway telescopic cylinder 19 are extended, so that the adjacent wire ropes between the pipe seat 3 and the pipe are arranged in an inverted trapezoidal shape. The multiple wire ropes between the pipe and the pipe seat 3 form a frustum-shaped structure.

[0049] Then, the steel wire rope is retracted again to lift the pipe to a suitable height, and the vehicle body 1 rotates to move the pipe above the pipe trench.

[0050] When retracting the wire rope again, the extension distance of the telescopic sleeve 8 and the anti-sway telescopic cylinder 19 can be adjusted as needed to maintain the angle between the wire rope and the plane of the pipeline at 60-70°, so as to avoid the wire rope being damaged by excessive force or the sling 23 slipping off and causing danger.

[0051] S3. The winch rewinds the pipe, lifting it and transferring it to the required location.

[0052] Lowering the steel wire rope allows the pipe to be placed into the pipe trench. Because the steel wire rope forms a frustum-shaped structure, the swinging and displacement of the pipe is reduced during the rotation and descent process, thus improving the hoisting efficiency.

Claims

1. A pipe-laying machine resistant to multi-directional displacement, comprising a vehicle body (1) and a boom (2) and a winch mounted on the vehicle body (1), characterized in that: The cantilever end of the boom (2) is hinged to a pipe seat (3). Multiple sets of wire ropes are provided between the pipe seat (3) and the winch. A guide wheel set is provided on the pipe seat (3). The guide wheel set is spaced apart in the axial direction of the pipe. A return wheel (4) is provided at the top of the boom (2). The wire rope is led out from the winch, passes around the return wheel (4) and the guide wheel set, and is connected to the pipe to be lifted. The adjacent wire ropes between the pipe seat (3) and the pipe are arranged in an inverted trapezoidal shape.

2. The pipe-laying machine resistant to multi-directional displacement according to claim 1, characterized in that: The cantilever end of the boom (2) is provided with a swing shaft (5), which is hinged to the boom (2). The pipe seat (3) is fixedly connected to the swing shaft (5). The upper end of the boom (2) is also provided with a hydraulic motor. The swing shaft (5) is provided with drive gears (6) on both sides. The output end of the hydraulic motor meshes with the drive gears (6) for transmission. The pipe seat (3) has a degree of freedom to swing relative to the boom (2) by means of the swing shaft (5).

3. The pipe-laying machine resistant to multi-directional displacement according to claim 1, characterized in that: The upper part of the hanging pipe seat (3) is provided with a fixed sleeve (7) and a telescopic sleeve (8). The end of the telescopic sleeve (8) is provided with an end plate (9). The fixed sleeve (7) is provided with two sets of hollow tubular cavities. The telescopic sleeve (8) passes through the tubular cavity. There is one telescopic sleeve (8) on each side of the fixed sleeve (7). The telescopic cylinder is provided in the tubular cavity of the fixed sleeve (7). The telescopic cylinder pushes the telescopic sleeve (8) to slide relative to the fixed sleeve (7). The end plate (9) has the freedom of movement to extend or retract relative to the fixed sleeve (7) with the help of the telescopic sleeve (8).

4. The pipe-laying machine resistant to multi-directional displacement according to claim 3, characterized in that: The hanging pipe seat (3) has a U-shaped structure and is fixed in place with the fixing sleeve (7). An extension seat (10) is provided at the upper end of the hanging pipe seat (3). A rotary motor (11) is provided on the extension seat (10). The hanging pipe seat (3) is hinged to the extension seat (10). A rotary gear (12) is provided on the hanging pipe seat (3). The output end of the rotary motor (11) meshes with the rotary gear (12) for transmission. The hanging pipe seat (3) has a degree of freedom to rotate relative to the extension seat (10) with the help of the rotary motor (11).

5. A pipe-laying machine resistant to multi-directional displacement according to claim 3, characterized in that: The guide wheel assembly includes a first support wheel (13), a second support wheel (14), and a reversing wheel (15). The first support wheel (13) and the second support wheel (14) are arranged one above the other on the side of the end plate (9). The axes of the first support wheel (13) and the second support wheel (14) are perpendicular. The reversing wheel (15) is mounted on a mounting plate (16) that is fixedly connected to the hanging pipe seat (3). A reversing roller (17) is also provided between the reversing wheel (15) and the turning wheel (4).

6. The pipe-laying machine resistant to multi-directional displacement according to claim 5, characterized in that: The axis of the second support wheel (14) is parallel to the telescopic direction of the telescopic sleeve (8). The second support wheel (14) is connected to the end plate (9) by means of a sliding seat (18). The second support wheel (14) is rotatably mounted on the sliding seat (18). The sliding seat (18) is slidably connected to the end plate (9). The end plate (9) is provided with an anti-sway telescopic cylinder (19). The sliding seat (18) has a degree of freedom of movement relative to the end plate (9) by means of the anti-sway telescopic cylinder (19).

7. The pipe-laying machine resistant to multi-directional displacement according to claim 1, characterized in that: The vehicle body (1) is also provided with an auxiliary traction arm (20), and an auxiliary traction rope (21) is provided between the auxiliary traction arm (20) and the boom (2).

8. The pipe-laying machine resistant to multi-directional displacement according to claim 1, characterized in that: A crossbeam (22) is also provided below the pipe support (3). The upper end of the crossbeam (22) is fixedly connected to a wire rope extending from the pipe support (3). The lower end of the crossbeam (22) is provided with a sling (23) and a hook (24). One end of the sling (23) is fixedly connected to the crossbeam (22), and the other end is connected to the hook (24) to form a detachable hook connection.

9. An operating method for a pipe-laying machine resistant to multi-directional displacement, based on the pipe-laying machine resistant to multi-directional displacement as described in claim 1, characterized in that: Includes the following steps, S1. Take two sets of crossbeams (22), wrap the sling (23) around the pipe and connect it with the hook (24) to form a closed loop around the pipe. The two sets of crossbeams (22) are spaced apart in the axial direction of the pipe. S2. Adjust the extension length of the telescopic sleeve (8) and the second support wheel (14) so ​​that the adjacent steel wire ropes between the pipe hanger (3) and the pipe are arranged in an inverted trapezoidal shape, and the multiple steel wire ropes between the pipe and the pipe hanger (3) form a frustum-shaped structure. S3. The winch rewinds the pipe, lifting it and transferring it to the required location.

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