A type of pipe erection hoisting tool

Abstract

This invention discloses a riser construction hoisting tool, applied to riser hoisting, comprising: two sets of rotating rings, the two sets of rotating rings combined into a circular shape and sleeved on the outside of the riser, the two sets of rotating rings being detachably mounted on lifting lugs; and a counterweight seat, movably mounted inside the rotating rings, which can move along the two sets of rotating rings to adjust its relative position on the riser. This invention uses a posture detection unit to detect the riser's posture in real time, and a control unit, in coordination with a drive unit and a counterweight mechanism, adjusts the overall center of gravity, achieving automatic fine-tuning of the riser's hoisting posture. This eliminates the need for manual auxiliary straps, completely solving the problems of existing technologies where manual fine-tuning is limited by site conditions, subject to significant environmental wind interference, and poses prominent safety hazards. Simultaneously, the components are detachably connected and adaptable to risers of different specifications, offering high fine-tuning accuracy and stable operation, significantly improving the safety, efficiency, and installation quality of riser hoisting. It is suitable for various riser hoisting scenarios in construction, municipal engineering, petrochemicals, and other industries.

Description

Technical Field

[0001] This invention relates to the field of hoisting auxiliary tools, and in particular to a hoisting tool for riser construction. Background Technology

[0002] In building and municipal engineering projects, fine-tuning the posture of risers during hoisting is crucial for ensuring installation accuracy. During hoisting, the riser's posture needs to be adjusted in real time to address environmental wind interference and hoisting force deviations, ensuring precise alignment and preventing subsequent installation errors. Currently, the industry commonly uses manual adjustment with auxiliary straps, where multiple workers hold the straps and adjust the riser's position and posture by pulling and loosening them. This method can only allow for simple adjustments when the riser is stationary or hoisting at extremely slow speeds, and cannot achieve real-time, precise fine-tuning during the hoisting process.

[0003] This model has several significant drawbacks in terms of posture fine-tuning during hoisting: First, it is severely limited by the site conditions. The limited space under and around the riser during hoisting makes it difficult for construction personnel to maintain a stable position and to make real-time fine-tuning adjustments in accordance with the hoisting rhythm. This is especially true in confined spaces and environments with obstacles, where personnel coordination is even more challenging. Large-diameter risers require more personnel to coordinate, further exacerbating the problems of site adaptability and operational coordination. Second, it presents significant safety hazards. During hoisting, the riser is prone to irregular swaying due to environmental wind interference. Furthermore, uneven force distribution and the difficulty for personnel to keep pace with the riser's movement during hoisting further complicate matters. The manual pulling of the auxiliary belt can easily cause the auxiliary belt to slip out of the hand, and may also lead to increased swaying of the riser and personnel falls during high-altitude hoisting operations; thirdly, the precision and efficiency of fine-tuning are extremely low. The random interference of the ambient wind, combined with the dynamic displacement of the riser during hoisting, makes it difficult to accurately control the force of manual operation, resulting in frequent coordination errors and the inability to achieve real-time posture correction during hoisting, which greatly affects the construction quality and progress; fourthly, it has poor adaptability. For windy environments and large-diameter, heavy risers during hoisting, the manual pulling of the auxiliary belt cannot achieve effective posture fine-tuning and cannot meet the actual construction needs.

[0004] In summary, existing fine-tuning methods cannot achieve real-time and precise fine-tuning of the riser's attitude during hoisting. They also lack effective solutions for problems such as wind interference and dynamic displacement in hoisting scenarios, and have obvious shortcomings. Therefore, developing a hoisting tool that can achieve precise, safe, and efficient fine-tuning of the riser's attitude during hoisting has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a riser construction hoisting tool.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a riser construction hoisting tool, applied to riser hoisting, comprising: Two sets of rotating rings are combined into a circular shape and sleeved on the outside of the riser. The two sets of rotating rings are detachably mounted on the lifting lugs. The counterweight seat is movably disposed within the rotating ring and can move along the two sets of rotating rings to adjust its relative position on the riser. The counterweight seat is equipped with a drive unit and a counterweight mechanism. The riser is also equipped with an attitude detection unit for detecting the attitude of the riser; The drive unit and counterweight mechanism are used to operate based on feedback information from the attitude detection unit, so as to adjust the attitude of the riser during the hoisting process by adjusting the center.

[0007] Furthermore, both sets of rotating rings are provided with a first rotating groove and a second rotating groove distributed on their inner and outer sides; A driven tooth is provided in the first rotating groove; The counterweight seat is arranged along the length of the riser and is perpendicular to the rotating ring; The counterweight base is provided with a load-bearing wheel that extends into the first rotating groove.

[0008] Furthermore, the output end of the drive unit extends into the first rotating groove, and its execution end is provided with a transmission gear that meshes with the driven gear.

[0009] Furthermore, an auxiliary frame is provided on the counterweight base; The auxiliary frame is C-shaped and fixedly connected to the counterweight base; The auxiliary frame is provided with a rolling auxiliary wheel that extends into the second rotating groove.

[0010] Furthermore, the bottom end of the counterweight is provided with a contact wheel that fits against the outer surface of the riser. The counterweight base is equipped with a distance adjustment mechanism corresponding to the contact wheel, which is used to adjust the relative position between the contact wheel and the riser.

[0011] Furthermore, the counterweight mechanism is located on the side of the counterweight base away from the riser; The counterweight mechanism includes an adjusting screw, a movable adjusting end, a fixed adjusting end, a counterweight base, and a driving mechanism; The movable adjustment end engages with the adjustment screw, and the movable adjustment end is rectangular and fits against the surface of the counterweight seat; The fixed adjustment end is fixedly mounted on the counterweight base; The counterweight base is hinged to the movable adjustment end and the fixed adjustment end via two sets of connecting rods; The drive mechanism is mounted on the counterweight base and its actuator is fixedly connected to the adjusting screw. The drive mechanism is used to adjust the movable adjustment end relative to the fixed adjustment end, moving it further away from or closer to the fixed adjustment end, thereby adjusting the distance between the counterweight seat and the riser and changing the center of gravity of the counterweight.

[0012] Furthermore, the counterweight base is provided with counterweight holes, and multiple counterweight blocks are detachably mounted on the counterweight base through the counterweight holes.

[0013] Furthermore, the two sets of rotating rings are detachably connected to the lifting lugs via a connecting mechanism; The connecting mechanism includes a keyed hole on the lifting lug and a connecting hole on the inner side of the rotating ring, and the keyed hole and the connecting hole are fixedly connected by bolts.

[0014] Furthermore, the counterweight base is equipped with a control unit and a power supply. The control unit, power supply, drive unit, and drive mechanism are electrically connected. The control unit is also connected to the attitude detection unit via a signal.

[0015] Furthermore, the attitude detection units are in multiple groups and are equidistantly distributed on the outer surface of the riser; The attitude detection unit includes a tilt sensor and an acceleration sensor.

[0016] The beneficial effects of this invention are reflected in: This invention uses a posture detection unit to detect the riser's posture in real time. The control unit, in conjunction with the drive unit and counterweight mechanism, adjusts the overall center of gravity, achieving automatic fine-tuning of the riser's hoisting posture. This eliminates the need for manual assistance, completely solving the problems of existing technologies where manual fine-tuning is limited by site conditions, subject to significant wind interference, and poses significant safety hazards. Furthermore, the components are detachable and adaptable to different riser specifications, ensuring high fine-tuning accuracy and stable operation. This significantly improves the safety, efficiency, and installation quality of riser hoisting, making it suitable for various riser hoisting scenarios in construction, municipal engineering, petrochemicals, and other industries. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the structure of the present invention; Figure 3 This is a schematic diagram illustrating an embodiment of the present invention; Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the picture: 01. Riser; 02. Lifting lug; 1. Rotating ring; 11. First rotating groove; 111. Driven tooth; 12. Second rotating groove; 13. Connecting mechanism; 2. Counterweight base; 21. Drive unit; 22. Transmission gear; 3. Auxiliary frame; 31. Rolling auxiliary wheel; 4. Counterweight mechanism; 41. Adjusting screw; 42. Movable adjusting end; 43. Fixed adjusting end; 44. Counterweight base; 45. Drive mechanism; 5. Contact wheel; 6. Attitude detection unit. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-4 This invention discloses a riser construction hoisting tool, applied to the hoisting operation of riser 01. The core purpose is to solve the problems of existing technologies where manual adjustment of riser posture by pulling auxiliary belts is limited by the site, has great environmental wind interference, prominent safety hazards, and low fine-tuning accuracy. The tool enables automatic and precise fine-tuning of the riser posture during hoisting, thereby improving construction safety and efficiency.

[0021] like Figure 1 As shown, this riser construction hoisting tool mainly includes two sets of rotating rings 1, a counterweight seat 2, an auxiliary frame 3, a counterweight mechanism 4, a contact wheel 5, an attitude detection unit 6, a control unit, and a power supply (not separately labeled, integrated inside the counterweight seat 2). The two sets of rotating rings 1 are combined to form a complete ring, which is fitted onto the outside of the riser 01 and detachably connected to the lifting lugs 02 on the riser 01. The counterweight seat 2 is movably mounted on the rotating rings 1 and can run along the circumference of the rotating rings 1. The counterweight mechanism 4 and the drive unit 21 are integrated on the counterweight seat 2. The attitude detection unit 6 is arranged on the surface of the riser 01. The control unit realizes the coordinated control of each component, thereby adjusting the hoisting attitude of the riser 01.

[0022] The rotating ring 1, as the core load-bearing component of the tool, is made of high-strength alloy material. Each set of rotating rings 1 is semi-circular, and the ends of two sets of rotating rings 1 are connected and fixed together by a detachable connection structure. After assembly, they form a complete ring that matches the outer diameter of the riser 01, ensuring that there is a reasonable gap between the ring and the pipe body after it is fitted onto the outside of the riser 01, so as not to affect the stability of the rotating ring 1 itself, and at the same time to avoid damage caused by squeezing the surface of the riser 01. The detachable connection structure is preferably a clamp connection, a pin connection, or a flange connection, which can be flexibly selected according to the size of the construction site space and the specifications of the riser 01.

[0023] To achieve a stable connection between the rotating ring 1 and the riser 01, both sets of rotating rings 1 are detachably connected to the pre-set lifting lugs 02 on the riser 01 via a connecting mechanism 13. Specifically, the connecting mechanism 13 includes a key-shaped hole on the lifting lug 02 and a corresponding connecting hole on the inner side wall of the rotating ring 1. The key-shaped hole is set along the length of the lifting lug 02, and its length is greater than the diameter of the bolt, which facilitates fine adjustment of the installation position of the rotating ring 1 relative to the lifting lug 02 and adapts to the lifting lug layout of different specifications of risers. The bolt passes through the key-shaped hole and the connecting hole and is locked and fixed by the nut, realizing the detachable connection between the rotating ring 1 and the lifting lug 02, which facilitates the installation, disassembly and reuse of the tool.

[0024] To ensure the smooth operation of counterweight 2, such as Figure 2 As shown, each set of rotating rings 1 has an annular first rotating groove 11 and a second rotating groove 12 on both the inner and outer radial sides. The first rotating groove 11 is located on the inner side of the rotating ring 1 (the side closer to the riser 01), and the second rotating groove 12 is located on the outer side of the rotating ring 1. The two grooves are arranged in parallel and the groove width is adapted to the diameter of the corresponding rolling component (load-bearing wheel, rolling auxiliary wheel) to ensure that the rolling component can run smoothly in the groove. The inner sidewall of the first rotating groove 11 is evenly provided with driven teeth 111. The driven teeth 111 mesh with the transmission gear 22 of the subsequent drive unit 21 to provide power transmission for the operation of the counterweight 2.

[0025] The counterweight seat 2 serves as the mounting carrier for each core component. It adopts a rectangular box structure and is made of high-strength steel to ensure that it has sufficient load-bearing capacity to support the weight of components such as the drive unit 21 and the counterweight mechanism 4. The counterweight seat 2 is set along the length of the riser 01, and its length direction is perpendicular to the circumferential tangent direction of the rotating ring 1, ensuring that the counterweight seat 2 can run smoothly along the circumferential direction of the rotating ring 1, thereby adjusting its circumferential position relative to the riser 01.

[0026] To achieve stable support and sliding of the counterweight 2 on the rotating ring 1, load-bearing wheels (not shown in the figure) are provided on both sides of the top of the counterweight 2. The load-bearing wheels are symmetrically distributed and extend into the first rotating groove 11 of the two sets of rotating rings 1, rolling with the groove wall of the first rotating groove 11 to support the overall weight of the counterweight 2 and ensure that the counterweight 2 can slide smoothly along the first rotating groove 11.

[0027] The power for the operation of the counterweight 2 is provided by the drive unit 21. The drive unit 21 is a servo motor, which is fixedly installed inside the counterweight 2. Its output end passes through the side wall of the counterweight 2 and extends into the first rotating groove 11. A transmission gear 22 is fixedly sleeved at the end of the output end. The transmission gear 22 meshes with the driven gear 111 in the first rotating groove 11. The servo motor has the advantages of adjustable speed and precise positioning. Its forward and reverse rotation and speed can be controlled by the control unit, thereby driving the transmission gear 22 to rotate along the driven gear 111, realizing the precise movement of the counterweight 2 along the circumference of the rotating ring 1, and adjusting the relative position of the counterweight 2 on the riser 01.

[0028] To further improve the stability of the counterweight seat 2 during operation, an auxiliary frame 3 is provided on the counterweight seat 2. The auxiliary frame 3 adopts a C-shaped structure and is made of the same high-strength steel as the counterweight seat 2. Its open end faces the rotating ring 1 and is fixedly connected to the side wall of the counterweight seat 2 by welding to ensure the connection strength and prevent loosening during operation. Rolling auxiliary wheels 31 are provided at both ends of the auxiliary frame 3. The rolling auxiliary wheels 31 extend into the second rotating groove 12 of the rotating ring 1 and roll in cooperation with the groove wall of the second rotating groove 12.

[0029] The rolling auxiliary wheel 31 works in conjunction with the load-bearing wheel. On the one hand, it can assist in supporting the counterweight seat 2, improve the stability of the counterweight seat 2 during operation, and prevent the counterweight seat 2 from tilting or shifting. On the other hand, it can limit the radial displacement of the counterweight seat 2, prevent the counterweight seat 2 from detaching from the rotating ring 1, and further improve the operating safety of the tool.

[0030] Two sets of symmetrically distributed contact wheels 5 are provided at the bottom of the counterweight seat 2. The contact wheels 5 are made of elastic rubber material, and their outer surface is in close contact with the outer surface of the riser 01. They can roll along the surface of the riser 01 as the counterweight seat 2 moves, so as to avoid hard friction between the counterweight seat 2 and the surface of the riser 01 during operation and protect the outer surface of the riser 01 from damage.

[0031] To accommodate risers 01 with different outer diameters, the counterweight 2 is equipped with a distance adjustment mechanism corresponding to the contact wheel 5. The distance adjustment mechanism is a screw adjustment mechanism, including an adjusting screw, an adjusting nut, and a support base. The support base is fixedly installed at the bottom of the counterweight 2. The adjusting screw passes through the support base and is threadedly connected to it. One end of the adjusting screw is rotatably connected to the contact wheel 5, and the other end is equipped with an adjustment knob. By rotating the adjustment knob, the adjusting screw can be moved back and forth along the support base, thereby adjusting the fit between the contact wheel 5 and the outer surface of the riser 01, ensuring that the contact wheel 5 is always in close contact with the riser 01, and improving the operational stability of the counterweight 2.

[0032] like Figure 3As shown, the counterweight mechanism 4 is located on the side of the counterweight base 2 away from the riser 01. Its core function is to adjust the overall center of gravity of the tool, thereby achieving fine-tuning of the posture of the riser 01. The counterweight mechanism 4 mainly includes an adjusting screw 41, a movable adjusting end 42, a fixed adjusting end 43, a counterweight base 44, and a drive mechanism 45. The specific connection relationship of each component is as follows: The fixed adjustment end 43 is fixedly installed on the surface of the counterweight base 2 by bolts. The movable adjustment end 42 is rectangular block-shaped, and its bottom slides against the surface of the counterweight base 2, and can move parallel to the surface of the counterweight base 2. The adjusting screw 41 is set horizontally, with one end rotatably connected to the fixed adjustment end 43 and the other end fixedly connected to the execution end of the drive mechanism 45. The movable adjustment end 42 has a threaded hole in the middle, which is threadedly engaged with the adjusting screw 41 to realize the linkage between the movable adjustment end 42 and the adjusting screw 41.

[0033] The drive mechanism 45 uses a servo motor and is fixedly installed on the surface of the counterweight 2. Its output end is fixedly connected to the end of the adjusting screw 41 through a coupling, which can drive the adjusting screw 41 to rotate forward and backward. The counterweight 44 has a rectangular structure. Its top is hinged to the movable adjustment end 42 and the fixed adjustment end 43 respectively through two sets of connecting rods. Both ends of the connecting rods are rotatably connected to the corresponding parts through pins, ensuring that when the movable adjustment end 42 moves, the counterweight 44 can be driven to move closer to or away from the riser 01 through the connecting rods.

[0034] To flexibly adjust the total weight of the counterweight mechanism 4 and adapt to different working conditions, multiple counterweight holes (not shown in the figure) are evenly provided on the counterweight base 44. The counterweight holes are circular and equidistantly distributed along the length of the counterweight base 44. Multiple counterweight blocks (not shown in the figure) are detachably installed on the counterweight base 44 by bolts passing through the counterweight holes. The operator can increase or decrease the number of counterweight blocks according to the specifications of the riser 01 and the wind force during the hoisting process to adjust the total weight of the counterweight mechanism 4 and improve the fine adjustment accuracy.

[0035] The attitude detection unit 6 is used to monitor the hoisting attitude of the riser 01 in real time. There are 3 sets of these units, which are distributed in a ring at equal intervals on the outer surface of the riser 01. The included angle between two adjacent sets of attitude detection units 6 is 120° to ensure that the attitude changes of the riser 01 can be fully detected. Each set of attitude detection units 6 includes an inclination sensor and an acceleration sensor, which are fixedly installed on the outer surface of the riser 01 by bolts. Its detection end faces the axis of the riser 01. It can detect the inclination angle and acceleration changes of the riser 01 in real time, thereby determining the attitude of the riser 01 (such as whether it is tilted or whether it is shaking due to environmental wind interference), and converting the detected attitude signal into an electrical signal and transmitting it to the control unit.

[0036] It is easy to imagine that, in order to adapt to the environment of confined spaces, a detachable visual inspection unit can be installed on the surface of riser 01, so that construction personnel can remotely observe the position of riser 01 in the well, so that it can be installed in the target area.

[0037] The control unit, as the core of the tool, is a PLC controller integrated inside the counterweight 2. The power supply is a rechargeable lithium battery, also installed inside the counterweight 2, which provides stable power to the control unit, drive unit 21, drive mechanism 45 and attitude detection unit 6. The lithium battery is removable and rechargeable, which is convenient for on-site construction.

[0038] The control unit is electrically connected to the drive unit 21 and the drive mechanism 45 respectively, and can send control commands to both to control their operating status. At the same time, the control unit is signal connected to the attitude detection unit 6, and can receive the attitude signals transmitted by the attitude detection unit 6 in real time, analyze and process the signals, determine the attitude deviation of the riser 01, and then generate corresponding control commands to realize the coordinated operation of each component.

[0039] Based on the structure and connection relationships of the above components, the working process of this riser construction hoisting tool is as follows. Specifically, considering the environmental wind interference during the hoisting process, the principle of its attitude fine-tuning is explained: Step 1, Tool Installation: Place two sets of rotating rings 1 around the outside of the riser 01, and fix them together using a detachable connection structure to form a complete ring. Then, use the bolts of the connecting mechanism 13 to fix the rotating rings 1 to the lifting lugs 02 on the riser 01. Adjust the relative positions of the keyhole and the connecting hole to ensure the rotating rings 1 are securely installed and accurately positioned. Next, assemble the counterweight base 2, auxiliary frame 3, counterweight mechanism 4, and other components. Adjust the position of the contact wheel 5 to ensure it fits tightly against the outer surface of the riser 01. Install an appropriate number of counterweights on the counterweight base 44 according to the specifications of the riser 01 and the operating conditions. Finally, fix three sets of attitude detection units 6 to the outer surface of the riser 01 and connect the control unit to the circuits of each component to ensure normal operation of each component.

[0040] The second step is hoisting and attitude detection: The hoisting equipment is connected to the hoisting lug 02 to lift the riser 01 and transport it to the vicinity of the designated installation position. During the hoisting process, the attitude detection unit 6 detects the tilt angle and acceleration changes of the riser 01 in real time. When the environmental wind interference causes the riser 01 to tilt or sway, the attitude detection unit 6 transmits the corresponding attitude signal to the control unit.

[0041] The third step is attitude fine-tuning: After receiving the attitude signal, the control unit analyzes and processes the signal to determine the direction and amount of attitude deviation of the riser 01, and then generates control commands: If the riser 01 tilts due to wind interference, the control unit controls the drive unit 21 to run, driving the transmission gear 22 to rotate along the driven gear 111, so that the counterweight 2 moves along the circumference of the rotating ring 1, adjusting the position of the counterweight 2 relative to the riser 01; at the same time, the control unit controls the drive mechanism 45 to run, driving the adjusting screw 41 to rotate, so that the movable adjusting end 42 moves closer to or further away from the fixed adjusting end 43, and through the connecting rod drives the counterweight 44 to move closer to or further away from the riser 01, changing the center of gravity position of the counterweight mechanism 4, thereby adjusting the overall center of gravity of the riser 01, counteracting the swaying caused by wind interference, and restoring the riser 01 to the preset attitude.

[0042] Step 4, Fixing and Tool Removal: When the attitude detection unit 6 detects that the attitude of the riser 01 has reached the preset requirements, the control unit controls each drive component to stop running. The operator temporarily fixes the riser 01 to complete the hoisting and positioning. After the hoisting operation is completed, the bolts of the connecting mechanism 13 are removed, the rotating ring 1 is separated from the lifting lug 02, and the two sets of rotating rings 1 are disassembled. The entire tool can then be removed from the riser 01 for easy reuse.

[0043] In summary, the riser hoisting tool of this embodiment automatically fine-tunes the hoisting posture of the riser 01 by using the posture detection unit 6 to detect the posture of the riser 01 in real time. The control unit, in coordination with the drive unit 21 and the counterweight mechanism 4, adjusts the overall center of gravity, eliminating the need for manual pulling of auxiliary straps. This completely solves the problems of existing technologies where manual fine-tuning is limited by the site, subject to significant environmental wind interference, and poses prominent safety hazards. At the same time, each component is detachable and can be adapted to different specifications of risers, with high fine-tuning accuracy and stable operation, significantly improving the safety, efficiency, and installation quality of riser hoisting. It is suitable for various riser hoisting scenarios such as construction, municipal engineering, and petrochemicals.

[0044] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0046] Additionally, "multiple" refers to two or more.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A riser construction hoisting tool, used for hoisting risers (01), characterized in that, include: Two sets of rotating rings (1) are combined into a circular shape and sleeved on the outside of the riser (01). The two sets of rotating rings (1) are detachably mounted on the lifting lug (02). The counterweight seat (2) is movably set inside the rotating ring (1) and can run along the two sets of rotating rings (1) to adjust its relative position on the riser (01). The counterweight seat (2) is provided with a drive unit (21) and a counterweight mechanism (4). The riser (01) is also provided with an attitude detection unit (6) for detecting the attitude of the riser (01). The drive unit (21) and the counterweight mechanism (4) are used to operate according to the feedback information from the attitude detection unit (6) in order to adjust the attitude of the riser (01) during the hoisting process by adjusting the center.

2. The riser construction hoisting tool according to claim 1, characterized in that: Both sets of rotating rings (1) are provided with a first rotating groove (11) and a second rotating groove (12) distributed on their inner and outer sides; A driven tooth (111) is provided in the first rotating groove (11). The counterweight (2) is arranged along the length of the riser (01) and is perpendicular to the rotating ring (1); The counterweight seat (2) is provided with a load-bearing wheel that extends into the first rotating groove (11).

3. The riser construction hoisting tool according to claim 2, characterized in that: The output end of the drive unit (21) extends into the first rotating groove (11), and its execution end is provided with a transmission gear (22) that meshes with the driven gear (111).

4. The riser construction hoisting tool according to claim 3, characterized in that: An auxiliary frame (3) is provided on the counterweight seat (2); The auxiliary frame (3) is C-shaped and fixedly connected to the counterweight seat (2); The auxiliary frame (3) is provided with a rolling sub-wheel (31) extending into the second rotating groove (12).

5. The riser construction hoisting tool according to claim 4, characterized in that: The bottom end of the counterweight (2) is provided with a contact wheel (5) that fits against the outer surface of the riser (01). The counterweight (2) is provided with a distance adjustment mechanism corresponding to the contact wheel (5) to adjust the relative position between the contact wheel (5) and the riser (01).

6. The riser construction hoisting tool according to claim 1, characterized in that: The counterweight mechanism (4) is located on the side of the counterweight base (2) away from the riser (01); The counterweight mechanism (4) includes an adjusting screw (41), a movable adjusting end (42), a fixed adjusting end (43), a counterweight base (44), and a driving mechanism (45). The movable adjustment end (42) engages with the adjusting screw (41), and the movable adjustment end (42) is rectangular and fits against the surface of the counterweight seat (2); The fixed adjustment end (43) is fixedly mounted on the counterweight base (2); The counterweight (44) is hinged to the movable adjustment end (42) and the fixed adjustment end (43) via two sets of connecting rods; The drive mechanism (45) is mounted on the counterweight (2) and its actuating end is fixedly connected to the adjusting screw (41); The drive mechanism (45) operates to adjust the movable adjustment end (42) relative to the fixed adjustment end (43) to move away from or closer to it, thereby adjusting the distance between the counterweight seat (44) and the riser (01) and changing the center of gravity of the counterweight.

7. The riser construction hoisting tool according to claim 6, characterized in that: The counterweight base (44) is provided with counterweight holes, and multiple counterweight blocks are detachably mounted on the counterweight base (44) through the counterweight holes.

8. The riser construction hoisting tool according to claim 1, characterized in that: The two sets of rotating rings (1) are detachably connected to the lifting lugs (02) via a connecting mechanism (13); The connecting mechanism (13) includes a key hole on the lug (02) and a connecting hole on the inner side of the rotating ring (1), and the key hole and the connecting hole are fixedly connected by bolts.

9. The riser construction hoisting tool according to claim 6, characterized in that: The counterweight base (2) is equipped with a control unit and a power supply; The control unit and power supply are electrically connected to the drive unit (21) and drive mechanism (45); The control unit is also connected to the attitude detection unit (6) via signal.

10. The riser construction hoisting tool according to claim 9, characterized in that: The attitude detection units (6) are in multiple groups and are equidistantly distributed on the outer surface of the riser (01); The attitude detection unit (6) includes a tilt sensor and an acceleration sensor.

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