Petrochemical engineering pipeline mounting and lifting device

Abstract

The petrochemical engineering pipeline installing and lifting device comprises an installing bin, an overturning column which is driven by an overturning mechanism to rotate around the X axis is arranged in the installing bin, and the other end of the overturning column extends out of the installing bin and is provided with a stable clamping mechanism; the turnover mechanism comprises a first connecting rod assembly and a rotating plate, and the first connecting rod assembly can be driven by a driving motor to swing forwards and backwards; one end of the rotating plate is hinged to the bottom end of the limiting plate, and the other end of the rotating plate is hinged to the bottom end of the connecting block through a rotating wheel column which is fixedly connected with the overturning column. The top end of the connecting block is rotationally connected with a limiting roller through a mounting shaft; the outer ring of the limiting roller is arranged in the long-strip opening in a rolling manner; a clamping clamp is slidably arranged on the rotating plate in the length direction of the rotating plate, the clamping clamp is hinged to the end, away from the driving motor, of the first connecting rod assembly, accurate limiting is conducted in a mechanical limiting mode, and the pipeline is accurately switched to be arranged vertically from horizontal arrangement.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline hoisting, and particularly relates to a hoisting device for the installation of petrochemical pipelines. Background Art

[0002] In the petrochemical industry, pipeline installation is one of the core engineering links. Especially for large-diameter, long-distance or vertically installed pipelines, their hoisting process has extremely high requirements for precision, stability and safety. Traditional hoisting devices mostly rely on general lifting equipment and simple fixtures. Although they can complete basic hoisting tasks, there are the following technical limitations: When installing pipelines vertically, they rely on simple mechanical limits. Traditional hoisting devices do not have a special flipping mechanism. When installing pipelines vertically, the pipeline is swung by the sling or manually rotated to the target position, and the hoisting angle and position are controlled by the experience of the operator. In order to reduce the labor intensity of the operator, some manufacturers add a flipping mechanism to the hoisting device. After the fixture clamps the horizontally arranged pipeline, the flipping mechanism drives the fixture holding the pipeline to rotate 90°, so that the pipeline is switched from the horizontal arrangement to the vertical arrangement, and then the vertical installation of the pipeline is carried out. However, the flipping mechanism of the existing hoisting device lacks precise limits and is not easy to accurately adjust the pipeline from the horizontal state to the vertical state. Summary of the Invention

[0003] In view of this, the present invention provides a hoisting device for the installation of petrochemical pipelines to solve the problem that the existing hoisting device lacks precise limits and is not easy to accurately adjust the pipeline from the horizontal state to the vertical state.

[0004] The present invention provides a hoisting device for the installation of petrochemical pipelines, including:

[0005] An installation bin, internally provided with a limiting plate, and a long strip opening is arranged at the top end of the limiting plate;

[0006] A flipping column, one end of which is arranged in the installation bin and is driven by a flipping mechanism to rotate around the X-axis. The other end of the flipping column extends outside the installation bin and is provided with a stable clamping mechanism for clamping the pipeline;

[0007] The flipping mechanism includes:

[0008] A first connecting rod assembly, one end of which is connected to a driving motor and can be driven by the driving motor to swing forward and backward;

[0009] A rotating plate, one end of which is hinged to the bottom end of the limiting plate, and the other end is hinged to the bottom end of a connecting block through a rotating wheel column. The rotating wheel column is fixedly connected to the flipping column; the top end of the connecting block is rotatably connected with a limiting roller through a mounting shaft, and the limiting roller is arranged to roll in the long strip opening;

[0010] The clip is slidably arranged on the rotating plate along the length direction of the rotating plate, and the clip is hinged to one end of the first link assembly away from the driving motor.

[0011] A hoisting device for installing petrochemical pipelines according to the present invention has at least the following beneficial effects:

[0012] By arranging a long strip opening along the length direction of the limiting plate on the limiting plate and rolling the limiting roller in the long strip opening, after the stable clamping mechanism clamps the horizontally arranged pipeline, the driving motor is started to drive the first link assembly to swing forward. The first link assembly pulls the clip, and the clip pushes the rotating plate to rotate around the hinge point between the rotating plate and the limiting plate, so that the rotating plate drives the connecting block to swing through the rotating wheel column. At this time, the rotating wheel column rotates with the axis of the installation shaft as the rotation center line, and the connecting block pushes the limiting roller to move in the long strip opening; while the rotating wheel column rotates 90° with the axis of the installation shaft as the rotation center line, the limiting roller moves to abut against the end wall of the long strip opening. At this time, even if the driving motor is still outputting positive torque, because the limiting roller moves to abut against the end wall of the long strip opening and cannot move further to form a "dead point" similar to this, the connecting block cannot continue to rotate with the axis of the installation shaft as the rotation center line under the positive torque output by the driving motor. Precise limiting is achieved through mechanical limiting, ensuring that the rotating wheel column cannot continue to rotate after rotating 90° with the axis of the installation shaft as the rotation center line, so as to ensure that the flipping column rotates 90° around the X-axis, making the pipeline clamped by the stable clamping mechanism switch from horizontal arrangement to vertical arrangement and remain stable in the vertical state. Furthermore, it ensures that the pipeline remains axially stable during the vertical installation process, avoids the swinging problem of traditional hoisting devices, and reduces the collision risk caused by the pipeline shaking.

[0013] In an alternative embodiment, the first link assembly includes:

[0014] A cam that can be driven by the driving motor to rotate forward around the X-axis and rotate backward around the X-axis, and a convex groove is provided on the side wall of the cam;

[0015] An L-shaped link, the right-angle end of which is rotatably connected to the installation bin through a rotating shaft, and the long arm end of the L-shaped link is movably arranged in the convex groove;

[0016] A movable rod, one end of which is hinged to the short arm end of the L-shaped link, and the other end of which is hinged to the clip.

[0017] In an alternative embodiment, a limiting sleeve is sleeved on the part of the rotating wheel column between the flipping column and the rotating plate, and the limiting sleeve is fixedly connected to the rotating plate;

[0018] And / or, an arc-shaped sliding plate is provided on the side of the rotating plate facing away from the limiting plate, the arc-shaped sliding plate is connected to the limiting plate, and the rotating plate is located in the clamping area between the arc-shaped sliding plate and the limiting plate.

[0019] In an alternative embodiment, the stable clamping mechanism includes:

[0020] A bearing plate provided at one end of the turning column extending outside the installation bin;

[0021] A first self-locking slider provided at one end of the bearing plate facing the turning column, the first self-locking slider is driven by a hydraulic telescopic component to move along the length direction of the turning column; on both sides of the first self-locking slider along the length direction of the bearing plate, a first linkage block is respectively provided, and each first linkage block is connected to an equalizing clamp through a second link assembly, and the second link assembly is used to drive the equalizing clamp to reciprocate along the length direction of the bearing plate; the equalizing clamp is slidably arranged at one end of the bearing plate facing away from the turning column.

[0022] In an alternative embodiment, the equalizing clamp is slidably arranged on the bearing plate through a sliding block; the second link assembly includes:

[0023] A self-locking load-bearing arm, one end of which is hinged to the first linkage block;

[0024] A first extrusion arm, hinged to the end of the self-locking load-bearing arm facing away from the first linkage block;

[0025] A sliding block is provided on one side of the bearing plate along the length direction of the bearing plate, and the sliding block is slidably arranged on the bearing plate along the length direction of the bearing plate; the middle of the first extrusion arm is hinged to the sliding block, and the end of the first extrusion arm facing away from the self-locking load-bearing arm is hinged to the sliding block.

[0026] In an alternative embodiment, the second link assembly further includes a second extrusion arm provided between the first extrusion arm and the sliding block, one end of the second extrusion arm is hinged to the first extrusion arm, and the other end of the second extrusion arm is hinged to the sliding block;

[0027] And / or, a long slot is provided at the position of the bearing plate corresponding to the sliding block, the long slot is arranged along the length direction of the bearing plate, and the sliding block is slidably arranged in the long slot;

[0028] And / or, a load-bearing slideway is provided on the end face of the bearing plate facing away from the turning column, and the equalizing clamp is slidably arranged on the load-bearing slideway along the length direction of the bearing plate;

[0029] And / or, the stable clamping mechanism further includes a fixture housing connected between the flipping column and the bearing plate. The open end of the fixture housing facing away from the flipping column is covered with the bearing plate. The bearing plate and the fixture housing enclose an installation cavity, and the hydraulic telescopic assembly is arranged in the installation cavity;

[0030] And / or, the clamping jaws of the equalizing fixture are arranged in a triangular shape.

[0031] In an alternative embodiment, a second self-locking slider is respectively arranged at two sides of the first self-locking slider along the width direction of the bearing plate, and the first self-locking slider and the two second self-locking sliders are connected by a slideway box; a second linkage block is respectively arranged at two sides of each second self-locking slider along the length direction of the bearing plate, and each second linkage block is connected to the equalizing fixture through the second link assembly.

[0032] In an alternative embodiment, the two second self-locking sliders are slidably arranged in the slideway box along the width direction of the bearing plate, and the two second self-locking sliders are driven by a self-locking driving assembly to approach and move away from each other along the width direction of the bearing plate.

[0033] In an alternative embodiment, the self-locking driving assembly includes:

[0034] A gear, arranged in the slideway box and driven by a transmission motor;

[0035] Two racks, meshing with the gear, the two racks are oppositely arranged on both sides of the gear along the length direction of the bearing plate, and the two racks are respectively fixedly connected to the two second self-locking sliders.

[0036] In an alternative embodiment, the hydraulic telescopic assembly includes:

[0037] Two sliding rods, arranged at an end of the bearing plate facing the flipping column at intervals;

[0038] An installation plate, arranged between the two sliding rods;

[0039] A hydraulic telescopic member, arranged on the installation plate;

[0040] A connecting plate, slidably arranged on the two sliding rods along the length direction of the flipping column, the connecting plate is connected to the telescopic end of the hydraulic telescopic member, the connecting plate is fixed to the end face of the first self-locking slider facing the installation plate, and an avoidance hole is formed between the connecting plate and the first self-locking slider for avoiding the slideway box. Brief Description of the Drawings

[0041] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 This is a schematic diagram of the three-dimensional structure of a petrochemical pipeline installation lifting device of this embodiment after the pipeline is flipped to a vertical arrangement;

[0043] Figure 2 for Figure 1 A schematic diagram of a cutaway structure from another perspective;

[0044] Figure 3 A schematic diagram of the structure of a turning mechanism in a petrochemical pipeline installation and lifting device of this embodiment for clamping a horizontally arranged pipeline;

[0045] Figure 4 for Figure 3 Schematic diagram of some structures in;

[0046] Figure 5 for Figure 3 A schematic diagram of another part of the structure;

[0047] Figure 6 for Figure 5 Another perspective diagram of the structure in the middle;

[0048] Figure 7 for Figure 6 Schematic diagram of some structures;

[0049] Figure 8 This is a schematic diagram of the structure of the stable clamping mechanism in this embodiment;

[0050] Figure 9 for Figure 8 Schematic diagram of the structure with some parts removed;

[0051] Figure 10 for Figure 9 Schematic diagram of some structures;

[0052] Figure 11 for Figure 10 Schematic diagram of part of the structure.

[0053] Description of reference numerals:

[0054] 100-installation bin, 110-limiting plate, 111-long opening, 112-arc-shaped slide plate, 120-guide slot, 130-fixing plate;

[0055] 200 - Inverted column;

[0056] 300 - Stable clamping mechanism, 310 - Bearing plate, 311 - Long strip slot, 312 - Load-bearing slideway, 313 - Slide bar, 314 - Load-bearing block, 320 - First self-locking slider, 321 - Slideway box, 330 - First linkage seat, 331 - First linkage block, 340 - Equal force clamp, 341 - Slide clamping block, 351 - Self-locking load-bearing arm, 352 - First extrusion arm, 353 - Slide block, 354 - Second extrusion arm, 360 - Clamp housing, 370 - Second self-locking slider, 381 - Second linkage block, 391 - Slide rod, 392 - Mounting plate, 393 - Hydraulic telescopic member, 394 - Connecting plate;

[0057] 410 - Rotating plate, 411 - Rotating wheel column, 412 - Limit sleeve, 413 - Limit rotating wheel column, 414 - Mounting cylinder, 420 - Connecting block, 421 - Mounting shaft, 430 - Limit roller, 440 - Clamp, 450 - Cam, 451 - Cam groove, 460 - L-shaped connecting rod, 461 - Rotating shaft, 462 - Ball bearing, 470 - Moving rod;

[0058] 510 - Gear, 520 - Rack. Detailed implementation manners

[0059] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0060] In the description of this embodiment, it should be noted that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to this embodiment. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0061] In the description of this embodiment, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0062] The following will describe the embodiments of the present invention in conjunction with Figures 1 to 11 ,

[0063] A hoisting device for installing petrochemical pipelines according to an embodiment of the present invention includes an installation bin 100 and a turning column 200. A limiting plate 110 is provided inside the installation bin 100, and a long strip opening 111 is provided at the top of the limiting plate 110. One end of the turning column 200 is arranged inside the installation bin 100 and is driven by a turning mechanism to rotate around the X-axis. The other end of the turning column 200 extends outside the installation bin 100 and is provided with a stable clamping mechanism 300 for stably clamping the pipeline. The turning mechanism includes a first link assembly and a turning plate 410. The first link assembly can be driven by the driving motor to swing forward and backward. One end of the turning plate 410 is hinged to the bottom end of the limiting plate 110, and the other end is hinged to the bottom end of the connecting block 420 through a runner column 411. The runner column 411 is fixedly connected to the turning column 200. The top end of the connecting block 420 is rotatably connected to the inner ring of a limiting roller 430 through a mounting shaft 421, and the outer ring of the limiting roller 430 rolls in the long strip opening 111. A clamp 440 is slidably arranged along the length direction of the turning plate 410, and the clamp 440 is hinged to the end of the first link assembly away from the driving motor.

[0064] The lifting device for petrochemical pipeline installation in this embodiment is provided with a long strip opening 111 arranged along the length direction of the limiting plate 110 on the limiting plate 110, and the limiting roller 430 is rotatably arranged in the long strip opening 111. After the stable clamping mechanism 300 clamps the horizontally arranged pipeline, the driving motor is started to drive the first link assembly to swing forward. The first link assembly pulls the clamp 440, and the clamp 440 pushes the rotating plate 410 to rotate around the hinge point of the rotating plate 410 and the limiting plate 110, so that the rotating plate 410 drives the connecting block 420 to swing through the rotating wheel column 411. At this time, the rotating wheel column 411 rotates with the axis of the mounting shaft 421 as the rotation center line, and the connecting block 420 pushes the limiting roller 430 to move in the long strip opening 111; while the rotating wheel column 411 rotates 90° with the axis of the mounting shaft 421 as the rotation center line, the limiting roller 430 moves to abut against the end wall of the long strip opening 111. At this time, even if the driving motor is still outputting positive torque, but because the limiting roller 430 moves to abut against the end wall of the long strip opening 111 and cannot move further to form a similar "dead point", the connecting block 420 cannot continue to rotate with the axis of the mounting shaft 421 as the rotation center line under the positive torque output by the driving motor, so as to achieve precise limiting by mechanical limiting means, ensuring that the rotating wheel column 411 cannot continue to rotate after rotating 90° with the axis of the mounting shaft 421 as the rotation center line, thereby ensuring that the flipping column 200 rotates 90° around the X-axis so that the pipeline clamped by the stable clamping mechanism 300 remains stable in the vertical state after switching from the horizontal arrangement to the vertical arrangement, and further ensuring that the pipeline remains axially stable during the vertical installation process, avoiding the swinging problem of the traditional lifting device, and reducing the collision risk caused by the pipeline shaking.

[0065] It should be noted that in this embodiment, by hiding the flipping mechanism in the installation bin 100, it is beneficial to prevent the flipping mechanism from being damaged by external collisions.

[0066] It should be noted that if the length of the long strip opening 111 is made infinitely long (that is, the limiting roller 430 can move infinitely in the long strip opening 111), when the driving motor drives the first link assembly to swing forward to the limit position, the angle of rotation of the rotating wheel column 411 with the axis of the mounting shaft 421 as the rotation center line is slightly greater than 90°, specifically it can be 91°, 92°, etc.; to ensure that in this embodiment, after the limiting effect of the long strip opening 111, after the rotating wheel column 411 rotates 90° with the axis of the mounting shaft 421 as the rotation center line, the positive torque output by the driving motor is still applied to the connecting block 420, ensuring that the flipping column 200 remains stable after rotating 90° around the X-axis, thereby ensuring that the pipeline remains axially stable during the vertical installation process and avoiding the swinging problem.

[0067] It should be noted that when the driving motor is started to drive the first link assembly to swing reversely, the runner column 411 rotates reversely with the axis of the mounting shaft 421 as the rotation center line, and the connecting block 420 pushes the limiting roller 430 to move in the long strip opening 111 in the direction away from the end wall in contact with the limiting roller 430. When the runner column 411 rotates reversely 90° with the axis of the mounting shaft 421 as the rotation center line, the limiting roller 430 moves to abut against the other end wall of the long strip opening 111. At this time, even if the driving motor is still outputting reverse torque, because the limiting roller 430 moves to abut against the other end wall of the long strip opening 111 and cannot move further to form a "dead point" similar to this, the connecting block 420 cannot continue to rotate reversely with the axis of the mounting shaft 421 as the rotation center line under the reverse torque output by the driving motor. By means of mechanical limit, precise limit is achieved, ensuring that the runner column 411 cannot continue to rotate after rotating reversely 90° with the axis of the mounting shaft 421 as the rotation center line, thereby ensuring that the flipping column 200 rotates reversely 90° around the X-axis, so that the stable clamping mechanism 300 can stably clamp the horizontally arranged pipeline; it can be understood that when the pipeline clamped by the stable clamping mechanism 300 is switched from horizontal arrangement to vertical arrangement, the runner column 411 rotates forward 90° with the axis of the mounting shaft 421 as the rotation center line; when the stable clamping mechanism 300 is reversely flipped to re-clamp the horizontally arranged pipeline, the runner column 411 rotates reversely 90° with the axis of the mounting shaft 421 as the rotation center line.

[0068] As Figure 2 shown, it should be noted that the surrounding wall of the installation bin 100 is provided with a guiding slot 120 that restricts the rotation trajectory of the flipping column 200, so that the flipping column 200 can rotate together with the runner column 411.

[0069] It can be understood that the installation bin 100 can be arranged on a tower crane or a crane to realize the lifting of the petrochemical pipeline installation device in this embodiment and the lifting of the pipeline.

[0070] As Figures 5 to 7 shown, specifically, the rotating plate 410 is rotatably connected to the bottom end of the limiting plate 110 through the limiting runner column 413. More specifically, a through hole is formed in the limiting plate 110 corresponding to the position of the limiting runner column 413. An installation cylinder 414 is arranged in the through hole. One end of the installation cylinder 414 away from the rotating plate 410 extends outside the limiting plate 110, and the limiting runner column 413 is rotatably arranged in the installation cylinder 414 through a bearing.

[0071] In some embodiments, the first link assembly includes a cam 450, an L-shaped link 460, and a movable rod 470. The cam 450 can be driven by the drive motor to rotate in the positive X-axis direction and in the reverse X-axis direction. A convex groove 451 is provided on the side wall of the cam 450 facing away from the drive motor. The right-angle end of the L-shaped link 460 is rotatably connected to the installation bin 100 through a rotating shaft 461. The long arm end of the L-shaped link 460 is movably arranged in the convex groove 451 and drives the L-shaped link 460 to swing around the rotating shaft 461 when the cam 450 rotates. One end of the movable rod 470 is hinged to the short arm end of the L-shaped link 460, and the other end is hinged to the clamp 440. The L-shaped link 460 is L-shaped, and the long arm end of the L-shaped link 460 is movably arranged in the convex groove 451, and the short arm end of the L-shaped link 460 is hinged to the movable rod 470. It can convert the rotational power of the cam 450 into a pushing and pulling force along the length direction of the movable rod 470, simplify the transmission structure, improve the mechanical efficiency, and amplify the output force through the lever principle, so as to meet the clamping and flipping requirements of pipes with a larger weight without significantly increasing the power of the drive motor.

[0072] It should be noted that the convex groove 451 is an irregular shape similar to the "outer contour of the cam", so that when the cam 450 rotates, the surrounding wall of the convex groove 451 drives the long arm end of the L-shaped link 460 to move radially along the cam 450, thereby causing the L-shaped link 460 to swing with the axis of the rotating shaft 461 as the rotation center line.

[0073] As Figure 3 and Figure 4 shown, specifically, one end of the rotating shaft 461 away from the L-shaped link 460 is rotatably arranged on the surrounding wall of the installation bin 100 through a ball bearing 462, and a fixing plate 130 is arranged in the installation bin 100, and the rotating shaft 461 is rotatably arranged on the fixing plate 130 through a bearing. By setting like this, the rotational support for the rotating shaft 461 is increased, and the stability of the L-shaped link 460 swinging around the rotating shaft 461 under the drive of the cam 450 rotation is ensured.

[0074] In another alternative embodiment, the first link assembly includes a cam 450, an L-shaped link 460, and a movable rod 470. The cam 450 can be driven by the drive motor to rotate in the positive X-axis direction and in the reverse X-axis direction. A convex groove 451 is provided on the side wall of the cam 450. The right-angle end of the L-shaped link 460 is rotatably connected to the installation bin 100 through a rotating shaft 461. The short arm end of the L-shaped link 460 is slidably arranged in the convex groove 451 and drives the L-shaped link 460 to swing around the rotating shaft 461 when the cam 450 rotates. One end of the movable rod 470 is hinged to the long arm end of the L-shaped link 460, and the other end is hinged to the clamp 440.

[0075] As Figure 3 and Figure 5 shown, in some embodiments, a limiting sleeve 412 is sleeved on a portion of the runner column 411 located between the flipping column 200 and the rotating plate 410, and the limiting sleeve 412 is fixedly connected to the rotating plate 410. The limiting sleeve 412 restricts the radial displacement of the runner column 411, preventing the structural deformation of the runner column 411, which is beneficial to ensuring the safe and stable operation of the petrochemical pipeline installation and hoisting device in this embodiment under extreme working conditions.

[0076] Specifically, an arc-shaped sliding plate 112 is provided on a side of the rotating plate 410 facing away from the limiting plate 110. The arc-shaped sliding plate 112 is connected to the limiting plate 110, and the rotating plate 410 is located within a clamping area between the arc-shaped sliding plate 112 and the limiting plate 110. By setting it in this way, the arc-shaped sliding plate 112 restricts the displacement of the rotating plate 410 in the thickness direction of the rotating plate 410, preventing the structural deformation of the rotating plate 410, which is beneficial to ensuring the safe and stable operation of the petrochemical pipeline installation and hoisting device in this embodiment under extreme working conditions.

[0077] As Figure 1 , Figure 2 and Figures 8 to 11 shown, in some embodiments, the stable clamping mechanism 300 includes a bearing plate 310, and the bearing plate 310 is arranged at one end of the flipping column 200 extending outside the installation bin 100; the first self-locking slider 320 is arranged at one end of the bearing plate 310 facing the flipping column 200, and the first self-locking slider 320 is driven by a hydraulic telescopic component to move along the length direction of the flipping column 200; one first linkage block 331 is arranged on each of the two sides of the first self-locking slider 320 along the length direction of the bearing plate 310, and each first linkage block 331 is connected to a force equalizing clamp 340 through a second connecting rod assembly, and the second connecting rod assembly is used to drive the force equalizing clamp 340 to reciprocate along the length direction of the bearing plate 310; the force equalizing clamp 340 is slidably arranged at one end of the bearing plate 310 facing away from the flipping column 200. By setting it in this way, when clamping and fixing a horizontally arranged pipeline, the hydraulic telescopic component is started to drive the first self-locking slider 320 to move away from the bearing plate 310 along the length direction of the flipping column 200, so that the two first linkage blocks 331 move away from the bearing plate 310 along the length direction of the flipping column 200 together, and drive the two force equalizing clamps 340 to approach each other along the length direction of the bearing plate 310 through the second connecting rod assembly, and clamp the pipeline located between the two force equalizing clamps 340.

[0078] It should be noted that, in this embodiment, because the displacement of the first self-locking slider 320 driven by the hydraulic telescopic assembly along the length direction of the flip column 200 is controlled within a certain range, it can be applied to clamping pipes of different diameters.

[0079] like Figure 10 and Figure 11 As shown, specifically, a first linkage seat 330 is sleeved in the middle of the first self-locking slider 320 , and the first linkage seat 330 extends to the outside of the first self-locking slider 320 along both sides of the length direction of the bearing plate 310 to form a first linkage block 331 .

[0080] like Figures 8 to 11 As shown, specifically, the force equalizing clamp 340 is slidably set on the supporting plate 310 through a sliding block 341; the second connecting rod assembly includes a self-locking load-bearing arm 351 and a sliding block 353, and one end of the self-locking load-bearing arm 351 is hinged to the first linkage block 331; the end of the self-locking load-bearing arm 351 away from the first linkage block 331 is hinged with a first extrusion arm 352, and the sliding block 353 is set on one side of the supporting plate 310 along the length direction of the supporting plate 310, and the sliding block 353 is slidably set on the supporting plate 310 along the length direction of the supporting plate 310; the middle part of the first extrusion arm 352 is hinged to the sliding block 353, and the end of the first extrusion arm 352 away from the self-locking load-bearing arm 351 is hinged to the sliding block 341. Through such an arrangement, when the horizontally arranged pipe is clamped and fixed, the hydraulic telescopic assembly is started to drive the first self-locking slider 320 to move away from the bearing plate 310 along the length direction of the flip column 200, so that the self-locking load-bearing arm 351 and the hinged end of the first linkage block 331 move together along the length direction of the flip column 200 away from the bearing plate 310. At this time, the first squeezing arm 352 and the hinged end of the self-locking load-bearing arm 351 move inward along the length direction of the bearing plate 310. The inward movement of the first squeezing arm 352 drives the sliding block 353 to slide inward along the bearing plate 310, thereby driving the sliding block 341 to slide inward in a straight line, and then driving the equalizing clamp 340 to slide inward in a straight line, so that the two equalizing clamps 340 located on the same straight line along the length direction of the bearing plate 310 approach each other inward, and the pipe located between the two equalizing clamps 340 is clamped.

[0081] Specifically, the second link assembly further includes a second extrusion arm 354 disposed between the first extrusion arm 352 and the sliding block 341. One end of the second extrusion arm 354 is hinged to the first extrusion arm 352, and the other end of the second extrusion arm 354 is hinged to the sliding block 341. With such an arrangement, when the hydraulic telescopic assembly is activated to drive the first self-locking slider 320 to move away from the bearing plate 310 along the length direction of the turning column 200, the first extrusion arm 352 moves inward to drive the sliding block 353 to slide linearly inward along the bearing plate 310. Moreover, the first extrusion arm 352 squeezes inward to drive the second extrusion arm 354 to squeeze inward, and the second extrusion arm 354 squeezes inward to drive the sliding block 341 to slide linearly inward along the bearing plate 310. The inward sliding of the sliding block 341 drives the equalizing fixture 340 to slide inward to clamp the pipeline. Through the transitional connection of the second extrusion arm 354 during the entire clamping process, the stroke of driving the equalizing fixture 340 to reciprocate along the bearing plate 310 is increased, which is more conducive to adapting to the clamping of pipelines with more outer diameters.

[0082] As Figure 2 and Figure 11 shown, specifically, a load-bearing slideway 312 is provided on the end face of the bearing plate 310 facing away from the turning column 200, and the sliding block 341 is slidably arranged in the load-bearing slideway 312 along the length direction of the bearing plate 310. Through the guiding cooperation between the load-bearing slideway 312 and the sliding block 341, it is convenient to reduce the frictional loss during the process of driving the equalizing fixture 340 to slide inward for clamping, extend the service life of the components, and reduce the maintenance cost.

[0083] As Figures 8 to 10 shown, specifically, a long slot 311 is provided at the position of the bearing plate 310 corresponding to the sliding block 353. The long slot 311 is arranged along the length direction of the bearing plate 310, and the sliding block 353 is slidably arranged in the long slot 311. Through the guiding action of the long slot 311, the sliding block 353 slides linearly along the long slot 311 under the drive of the first extrusion arm 352.

[0084] As Figure 10 shown, specifically, the clamping mouths of the equalizing fixture 340 are arranged in a triangular shape. The clamping mouths arranged in a triangular shape can form multiple support points, and the pressure is evenly distributed through geometric symmetry. This can not only avoid local stress concentration, prevent surface depressions or scratches on the pipeline, but also enhance the grasping ability for smooth objects.

[0085] As Figure 8 and Figure 9As shown, in some embodiments, a second self-locking slider 370 is respectively arranged at intervals on both sides of the first self-locking slider 320 along the width direction of the bearing plate 310. The first self-locking slider 320 and the two second self-locking sliders 370 are connected by a slideway box 321. A second linkage block 381 is respectively arranged on both sides of each second self-locking slider 370 along the length direction of the bearing plate 310. Each second linkage block 381 is connected to a force equalizing clamp 340 through the second link assembly. By such an arrangement, two force equalizing clamps 340 located on the same straight line along the length direction of the bearing plate 310 are set as a group of force equalizing clamp assemblies. In this embodiment, by arranging three groups of force equalizing clamp assemblies at intervals along the width direction of the bearing plate 310 (i.e., the axial direction of the pipeline), when the stable clamping mechanism 300 is used to clamp the pipeline, the three groups of force equalizing clamp assemblies are respectively clamped at three different positions along the axial direction of the pipeline, which is beneficial to improving the stable clamping effect on the pipeline.

[0086] It should be noted that the first self-locking slider 320 and the two second self-locking sliders 370 are connected into one body through the slideway box 321, that is, there is no relative movement between the first self-locking slider 320 and the second self-locking slider 370 along the length direction of the turning column 200, ensuring that only one hydraulic telescopic assembly can drive the first self-locking slider 320 and the two second self-locking sliders 370 to move synchronously along the length direction of the turning column 200 together.

[0087] It can be understood that the structures of the first linkage block 331 and the second linkage block 381 are the same.

[0088] It can be understood that the length direction of the bearing plate 310, the width direction of the bearing plate 310, and the length direction of the turning column 200 are perpendicular to each other in pairs.

[0089] Specifically, a second linkage seat is sleeved in the middle of the second self-locking slider 370. The second linkage seat extends to the outside of the second self-locking slider 370 on both sides along the length direction of the bearing plate 310 to form the second linkage block 381.

[0090] Specifically, the two second self-locking sliders 370 are slidably arranged on the slideway box 321 along the width direction of the bearing plate 310, and the two second self-locking sliders 370 are driven by a self-locking drive assembly to approach and move away from each other along the width direction of the bearing plate 310. With such an arrangement, after starting the hydraulic telescopic assembly to drive the first self-locking slider 320 to move a set distance away from the bearing plate 310 along the length direction of the turning column 200, so that the two equalizing clamps 340 of each set of equalizing clamp assemblies approach each other inward to clamp and fix the pipeline; then start the self-locking drive assembly to drive the two second self-locking sliders 370 to move away from each other along the width direction of the bearing plate 310, increasing the friction force at the hinge joint between the second linkage block 381 and the corresponding self-locking load-bearing arm 351, so that relative rotation cannot occur between the second linkage block 381 and the corresponding self-locking load-bearing arm 351 to form mechanical self-locking, ensuring that the equalizing clamp assembly corresponding to the first self-locking slider 320 remains in the clamping state for self-locking, so that even if the driving hydraulic pressure of the hydraulic telescopic assembly drops slightly, the clamping force of the equalizing clamp assembly will not become smaller. Thus, at least two sets of equalizing clamp assemblies remain in the clamping state without continuous hydraulic pressure holding, which is applicable to long-term hanging or heavy-load scenarios and avoids clamping loosening.

[0091] As Figure 8 and Figure 9 shown, specifically, the self-locking drive assembly includes a gear 510 and two racks 520. The gear 510 is arranged in the slideway box 321 and is driven by a transmission motor; the two racks 520 are both meshed with the gear 510, and the two racks 520 are oppositely arranged on both sides of the gear 510 along the length direction of the bearing plate 310, and the two racks 520 are respectively fixedly connected to the two second self-locking sliders 370. With such an arrangement, after starting the hydraulic telescopic assembly to drive the first self-locking slider 320 to move a set distance away from the bearing plate 310 along the length direction of the turning column 200, so that the two equalizing clamps 340 of each set of equalizing clamp assemblies approach each other inward to clamp and fix the pipeline, then start the transmission motor to drive the gear 510 to rotate. The gear 510 drives the two racks 520 to move away from each other along the width direction of the bearing plate 310 (at this time, the two racks 520 are misaligned and opened), and the two racks 520 moving apart and opening drive the two second self-locking sliders 370 to move away from each other along the width direction of the bearing plate 310, ensuring that the equalizing clamp assembly corresponding to the first self-locking slider 320 remains in the clamping state for self-locking.

[0092] It should be noted that when the pipeline needs to be released, first start the driving motor to drive the gear 510 to rotate. The gear 510 drives the two racks 520 to approach each other along the width direction of the bearing plate 310 (at this time, the two racks 520 overlap along the length direction of the bearing plate 310), so as to drive the two second self-locking sliders 370 to approach each other along the width direction of the bearing plate 310 to release the mechanical self-locking. Then start the hydraulic telescopic assembly to drive the first self-locking slider 320 to move towards the bearing plate 310 along the length direction of the turning column 200 to the initial state.

[0093] As Figure 8 shown, in some embodiments, the hydraulic telescopic assembly includes two slide rods 391, and the two slide rods 391 are arranged at intervals at one end of the bearing plate 310 facing the turning column 200; an installation plate 392 is arranged between the two slide rods 391, a hydraulic telescopic member 393 is arranged on the installation plate 392, a connecting plate 394 is slidably arranged between the two slide rods 391 along the length direction of the turning column 200, the connecting plate 394 is arranged at one end of the installation plate 392 facing the bearing plate 310, the connecting plate 394 is connected to the telescopic end of the hydraulic telescopic member 393, the connecting plate 394 is fixed to the end face of the first self-locking slider 320 facing the installation plate 392, and an avoidance hole is formed between the connecting plate 394 and the first self-locking slider 320 for avoiding the slideway box 321. By fixedly connecting the connecting plate 394 to the first self-locking slider 320 and sliding the connecting plate 394 between the two slide rods 391 along the length direction of the turning column 200, the first self-locking slider 320 can move smoothly in a straight line along the length direction of the turning column 200 under the sliding cooperation of the connecting plate 394 and the two slide rods 391, ensuring the clamping effect on the pipeline.

[0094] Specifically, the first self-locking slider 320 is slidably arranged on the two slide rods 391, increasing the sliding contact area and enhancing the stability of the movement.

[0095] In specific applications, the hydraulic telescopic member 393 can be set as a hydraulic cylinder or an oil cylinder, etc.

[0096] As Figure 1 and Figure 2 shown, in some embodiments, the stable clamping mechanism 300 further includes a fixture housing 360 connected between the turning column 200 and the bearing plate 310. The open end of the fixture housing 360 facing away from the turning column 200 is covered with the bearing plate 310, and an installation cavity is formed between the bearing plate 310 and the fixture housing 360. The hydraulic telescopic assembly is arranged in the installation cavity; by setting it in this way, the hydraulic telescopic assembly is hidden in the installation cavity, which is beneficial to avoiding damage to the hydraulic telescopic assembly caused by external collisions.

[0097] Specifically, the self-locking drive assembly is disposed in the installation cavity, which helps to prevent the self-locking drive assembly from being damaged due to external collision.

[0098] Specifically, both sides of the carrier plate 310 in the width direction of the carrier plate 310 are connected with load-bearing blocks 314 through sliding rods 313, and the load-bearing blocks 314 are connected to the inner peripheral wall of the fixture housing 360; this improves the structural strength and structural stability.

[0099] It should be noted that before the petrochemical pipeline installation hoisting device of this embodiment is started and used, the operator issues control instructions for clamping or loosening, flipping start or stop through a wireless remote control or a remote terminal. The instructions are transmitted to the crane control center through the communication module. After the control center receives the instructions, the main control unit analyzes the instruction type and decomposes the task into two independent control signals. The first controller reads the clamping target parameters, sends a signal to the hydraulic proportional valve through the bus, adjusts the output pressure of the hydraulic pump, and the pressure sensor real-time feeds back the pressure value of the oil cylinder (i.e., the hydraulic telescopic member 393) to form a closed-loop control for in-place detection. After the proximity switch is triggered, the hydraulic circuit is cut off, and the electromagnetic overflow valve is started to maintain pressure. The second is the drive motor control. If the instruction is for flipping start, the main control unit sends steering and speed instructions to the drive motor driver. The drive motor drives the flipping mechanism through the reducer. The angle sensor monitors the flipping angle and feeds it back to the main control unit to ensure accurate positioning, coordination, and safety protection. The system coordinates the actions of the two motors according to the preset logic, and at the same time monitors parameters such as current, voltage, and temperature, triggers overload protection, emergency braking, or alarm functions, and synchronizes the device status to the operator through the remote feedback interface.

[0100] It should be noted that when clamping a horizontally arranged pipeline and it is necessary to rotate the flipping column 200 forward by 90° so that the pipeline clamped by the stable clamping mechanism 300 is switched from horizontal arrangement to vertical arrangement for vertical installation of the vertically arranged pipeline, as Figures 3 to 5As shown, the driving motor drives the cam 450 to rotate clockwise. The rotation of the cam 450 drives the rotation of the cam groove 451. The cam groove 451 gradually presses down the long arm end of the L-shaped connecting rod 460, causing the short arm end of the L-shaped connecting rod 460 to push forward, thereby pushing the movable rod 470 forward. The forward movement of the movable rod 470 pushes the clamp 440 to slide on the rotating plate 410 and pushes the rotating plate 410 to rotate counterclockwise around the limit rotating wheel column 413, causing the rotating plate 410 to pull the connecting block 420 to rotate clockwise around the mounting shaft 421, and the connecting block 420 pushes the limit roller 430 to move forward in the long strip opening 111. While the rotating wheel column 411 rotates 90° clockwise with the axis of the mounting shaft 421 as the rotation center line, the limit roller 430 moves to abut against the front end wall of the long strip opening 111. At this time, even if the driving motor is still outputting a clockwise torque, because the limit roller 430 moves to abut against the front end wall of the long strip opening 111 and cannot move further to form a so-called "dead point", the connecting block 420 cannot continue to rotate clockwise with the axis of the mounting shaft 421 as the rotation center line under the clockwise torque output by the driving motor. Precise positioning is achieved through mechanical positioning, ensuring that the rotating wheel column 411 cannot continue to rotate after rotating 90° clockwise with the axis of the mounting shaft 421 as the rotation center line, thereby ensuring that the flipping column 200 rotates 90° clockwise around the X-axis so that the pipeline clamped by the stable clamping mechanism 300 remains stable in the vertical state after switching from the horizontal arrangement to the vertical arrangement, and further ensuring the axial stability of the pipeline during the vertical installation process, avoiding the swinging problem of traditional hoisting devices, and reducing the collision risk caused by the pipeline shaking. The forward direction described here is based on Figure 3 the perspective shown.

[0101] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the present invention.

Claims

1. A hoisting device for the installation of petrochemical pipelines, characterized in that, include: An installation bin (100) is provided with a limit plate (110) therein, and a long opening (111) is provided at the top of the limit plate (110); A turning column (200), one end of which is arranged in the installation bin (100) and is driven by the turning mechanism to rotate around the X-axis, and the other end of the turning column (200) extends outside the installation bin (100) and is provided with a stable clamping mechanism (300), wherein the stable clamping mechanism (300) is used to clamp the pipeline; The flipping mechanism comprises: A first connecting rod assembly, one end of which is connected to a driving motor and can be driven by the driving motor to swing forward and backward; A rotating plate (410), one end of which is hinged to the bottom end of the limiting plate (110), and the other end of which is hinged to the bottom end of the connecting block (420) through a rotating wheel column (411), wherein the rotating wheel column (411) is fixedly connected to the flip column (200); the top end of the connecting block (420) is rotatably connected to a limiting roller (430) through a mounting shaft (421), and the limiting roller (430) is rotatably arranged on the long strip opening (111); A clamp (440) is slidably disposed on the rotating plate (410) along the length direction of the rotating plate (410), and the clamp (440) is hinged to an end of the first connecting rod assembly that is away from the driving motor.

2. The hoisting device for petrochemical pipeline installation according to claim 1, characterized in that, The first connecting rod assembly comprises: A cam (450) can be driven by the driving motor to rotate in a positive direction around the X-axis and in a reverse direction around the X-axis, and a convex groove (451) is provided on the side wall of the cam (450); An L-shaped connecting rod (460), the right-angle end of which is rotatably connected to the installation bin (100) via a rotating shaft (461), and the long arm end of the L-shaped connecting rod (460) is movably disposed in the convex groove (451); A movable rod (470) has one end hinged to the short arm end of the L-shaped connecting rod (460) and the other end hinged to the clamp (440).

3. A hoisting device for petrochemical pipeline installation according to claim 1 or 2, characterized in that, A portion of the rotating wheel column (411) located between the turning column (200) and the rotating plate (410) is sleeved with a limiting sleeve (412), and the limiting sleeve (412) is fixedly connected to the rotating plate (410); And / or, a curved slide plate (112) is provided on a side of the rotating plate (410) facing away from the limiting plate (110), the curved slide plate (112) is connected to the limiting plate (110), and the rotating plate (410) is located in a clamping area between the curved slide plate (112) and the limiting plate (110).

4. A hoisting device for petrochemical pipeline installation according to claim 1 or 2, characterized in that, The stable clamping mechanism (300) comprises: A carrying plate (310) is arranged at one end of the turning column (200) extending outside the installation bin (100); A first self-locking slider (320) is arranged at one end of the bearing plate (310) facing the flip column (200), and the first self-locking slider (320) is driven by a hydraulic telescopic component to move along the length direction of the flip column (200); a first linkage block (331) is respectively arranged on both sides of the first self-locking slider (320) along the length direction of the bearing plate (310), and each of the first linkage blocks (331) is connected to a force equalizing clamp (340) through a second connecting rod assembly, and the second connecting rod assembly is used to drive the force equalizing clamp (340) to reciprocate along the length direction of the bearing plate (310); the force equalizing clamp (340) is slidably arranged at one end of the bearing plate (310) away from the flip column (200).

5. The hoisting device for the installation of petrochemical pipelines according to claim 4, characterized in that, The force equalizing clamp (340) is slidably disposed on the bearing plate (310) via a sliding block (341); the second connecting rod assembly comprises: A self-locking load-bearing arm (351), one end of which is hinged to the first linkage block (331); A first squeezing arm (352) is hinged to an end of the self-locking load-bearing arm (351) that faces away from the first linkage block (331); A sliding block (353) is arranged on one side of the supporting plate (310) along the length direction of the supporting plate (310), and the sliding block (353) is slidably arranged on the supporting plate (310) along the length direction of the supporting plate (310); the middle part of the first squeezing arm (352) is hinged to the sliding block (353), and one end of the first squeezing arm (352) facing away from the self-locking load-bearing arm (351) is hinged to the sliding block (341).

6. The hoisting device for the installation of petrochemical pipelines according to claim 5, wherein The second connecting rod assembly further comprises a second extrusion arm (354) arranged between the first extrusion arm (352) and the sliding block (341), one end of the second extrusion arm (354) being hinged to the first extrusion arm (352), and the other end of the second extrusion arm (354) being hinged to the sliding block (341); And / or, the carrying plate (310) is provided with a long slot (311) at a position corresponding to the sliding block (353), the long slot (311) is arranged along the length direction of the carrying plate (310), and the sliding block (353) is slidably arranged in the long slot (311); And / or, the end surface of the bearing plate (310) facing away from the flip column (200) is provided with a load-bearing slideway (312), and the force equalizing clamp (340) is slidably arranged on the load-bearing slideway (312) along the length direction of the bearing plate (310); And / or, the stable clamping mechanism (300) further comprises a clamp housing (360) connected between the flip column (200) and the bearing plate (310), the opening end of the clamp housing (360) facing away from the flip column (200) is covered with the bearing plate (310), the bearing plate (310) and the clamp housing (360) form a mounting cavity, and the hydraulic telescopic assembly is disposed in the mounting cavity; And / or, the jaws of the force equalizing clamp (340) are arranged in a triangular shape.

7. A hoisting device for the installation of petrochemical pipelines according to claim 4, characterized in that, A second self-locking slider (370) is respectively arranged at two sides of the first self-locking slider (320) along the width direction of the bearing plate (310) at intervals, and the first self-locking slider (320) is connected with the two second self-locking sliders (370) through a slideway box (321); a second linkage block (381) is respectively arranged at two sides of each second self-locking slider (370) along the length direction of the bearing plate (310), and each second linkage block (381) is connected with the equalizing clamp (340) through the second connecting rod assembly.

8. The hoisting device for the installation of petrochemical pipelines according to claim 7, characterized in that, The two second self-locking sliders (370) are slidably arranged in the slideway box (321) along the width direction of the bearing plate (310), and the two second self-locking sliders (370) are driven by a self-locking driving assembly to approach and move away from each other along the width direction of the bearing plate (310).

9. The hoisting device for the installation of petrochemical pipelines according to claim 8, characterized in that, The self-locking driving assembly includes: A gear (510) which is arranged in the slideway box (321) and is driven by a transmission motor; Two racks (520) which are meshed with the gear (510), the two racks (520) are relatively arranged at two sides of the gear (510) along the length direction of the bearing plate (310), and the two racks (520) are respectively fixedly connected with the two second self-locking sliders (370).

10. A hoisting device for the installation of petrochemical pipelines according to claim 7, characterized in that, The hydraulic telescopic assembly includes: Two slide bars (391) which are arranged at an end of the bearing plate (310) facing the turning column (200) at intervals; A mounting plate (392) which is arranged between the two slide bars (391); A hydraulic telescopic member (393) which is arranged on the mounting plate (392); A connecting plate (394) which is slidably arranged on the two slide bars (391) along the length direction of the turning column (200), the connecting plate (394) is connected to the telescopic end of the hydraulic telescopic member (393), the connecting plate (394) is fixed to the end face of the first self-locking slider (320) facing the mounting plate (392), and an avoidance hole is formed between the connecting plate (394) and the first self-locking slider (320) for avoiding the slideway box.

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