Heavy-load anti-swing double-hoist synchronous lifting tower crane device and control method thereof

Abstract

This invention discloses a heavy-duty anti-sway dual-winch synchronous lifting tower crane device and its control method, belonging to the technical field of construction equipment. Addressing the problems of existing tower cranes with single-winch single-lifting structures, such as easy swaying during long load lifting, poor adaptability to non-irregularly shaped loads, low synchronous control accuracy, and insufficient operational stability, this invention's device includes a lifting frame, tower crane boom, a first lifting module, a second lifting module, wire rope, a first winch module, a second winch module, hooks, a fixed platform, and a rotating platform. It is equipped with a dedicated synchronous anti-sway control method, which uses the dual winch modules to coordinate and synchronously wind up and down the rope, achieving traction and sway suppression at both ends of long loads. The winch speed can also be independently adjusted, and the height of the two hooks can be differentiated to adapt to the lifting of non-irregularly shaped loads. This invention combines optimized equipment structure with intelligent synchronous anti-sway control. Components are neatly numbered, and the platform layers do not interfere with each other. It offers stable operation and strong lifting adaptability, suitable for various high-altitude heavy-duty lifting operations in construction, significantly improving lifting stability, operational efficiency, and construction safety.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, specifically to a heavy-duty anti-sway dual-winch synchronous lifting tower crane device and its control method. It is applicable to high-altitude lifting operations in various construction projects, enabling anti-swaying of long heavy objects and flexible lifting of non-irregularly shaped heavy objects. The device features a standardized structural design, convenient operation, and precise control logic, significantly improving operational safety and efficiency. Background Technology

[0002] With the rapid development of the construction industry, higher requirements have been placed on the efficiency, stability, and adaptability of tower crane equipment. Currently, most tower cranes on the market are designed with a single lifting module and a single winch module. When lifting long, thin objects, the objects are prone to swaying, posing a significant safety hazard.

[0003] Meanwhile, existing tower cranes are difficult to adapt flexibly to the hoisting needs of non-irregularly shaped heavy objects. The hook height cannot be adjusted flexibly, and the component numbers of some equipment are chaotic and the connection relationships are unclear, making operation difficult and construction efficiency low. Their control methods are mostly single manual control, lacking precise synchronous control and anti-sway adjustment logic, and cannot achieve the coordinated linkage of dual winches, which further exacerbates the instability of hoisting.

[0004] Furthermore, the platform design of some tower cranes does not clearly distinguish between fixed and rotating structures, resulting in insufficient operational stability and failing to meet the demands for efficient and safe hoisting in large-scale construction projects. Therefore, there is an urgent need for a tower crane device and its control method that features a rational structure, standardized numbering, strong adaptability, and precise control logic to address the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing tower crane devices, such as easy swaying when lifting long heavy objects, inconvenience in lifting non-irregular heavy objects, chaotic component numbering, unstable operation, imperfect control logic, and low synchronization accuracy. This invention provides a heavy-duty anti-sway dual-winch synchronous lifting tower crane device and its control method, which enables stable lifting of long heavy objects, flexible adaptation to non-irregular heavy objects, standardized component numbering, optimized control logic, and improved construction efficiency and operational safety.

[0006] I. Heavy-duty anti-sway double-winch synchronous lifting tower crane device

[0007] The tower crane device of the present invention, its core components and connection relationships are as follows, corresponding to the three attached drawings ( Figures 1-3 The components include:

[0008] The lifting frame (1) is fixedly installed on the rotating platform (11) as a core support component. It is used to support all components such as the tower crane boom and lifting module, ensuring the stability of the overall structure and rotating synchronously with the rotating platform.

[0009] Tower crane boom (2): It is fixedly connected to the top of the lifting frame (1) and provides installation and sliding rails for the first lifting module (3) and the second lifting module (5), supporting the two lifting modules to move back and forth along their length direction to adapt to different lifting distance requirements.

[0010] The first lifting module (3) is slidably installed on the tower crane boom (2) and includes the first lifting trolley (31), the moving pulley (32), the upper pulley (33), and the lower pulley (34). The upper pulley (33) is connected to the luffing mechanism, and the lower pulley (34) is connected to the first winch module (6) and the first hook (8) through the wire rope (4) to realize power transmission and cooperate with the double winch module to complete synchronous lifting and anti-swaying actions. The wire rope (4) is dedicated to the first lifting module (3) and is only used to connect the first lifting module (3), the first winch module (6), and the first hook (8).

[0011] The second lifting module (5) is symmetrically set with the first lifting module (3), and has the same structure. It comes with its own wire rope (not using the number (4)) and works in tandem with the first lifting module (3) to achieve synchronous lifting. It works with the double winch module to solve the problem of swaying of long heavy objects, and can also independently adapt to the lifting needs of non-irregular heavy objects.

[0012] Wire rope (4): As a dedicated power transmission carrier for the first lifting module (3), it connects the first lifting module (3) with the first winch module (6) and the first hook (8) to transmit lifting power. It is the core connecting component for realizing the traction of the first lifting module (3) and the height adjustment of the hook. Its winding and unwinding speed is precisely controlled by the first winch module (6).

[0013] The first hoisting module (6) is fixedly installed on the fixed platform (10) and includes a first hydraulic motor (61), a first gearbox (62), a first hoisting drum (63), and a hoisting drum side bracket (64). It corresponds to and cooperates with the first lifting module (3) to provide stable power. Its speed can be precisely adjusted by the control unit to achieve synchronous lifting and anti-sway control.

[0014] The second winch module (7) is structurally identical to the first winch module (6), and is fixedly installed on the fixed platform (10). It corresponds to and cooperates with the second lifting module (5). Power transmission is achieved through the steel wire rope provided by the second lifting module (5). The double winch module is the core design. Its function is to simultaneously wind up and unwind the steel wire ropes connected to each other when hoisting long strip-shaped heavy objects, and pull the heavy objects from both ends to prevent swaying. When hoisting non-irregular-shaped heavy objects, the winding and unwinding speed can be controlled independently so that the two hooks are at different heights to adapt to the center of gravity requirements of non-irregular-shaped heavy objects.

[0015] First hook (8) and second hook (9): The first hook (8) is connected to the first lifting module (3) via a wire rope (4), and the second hook (9) is connected to the second lifting module (5) via a wire rope provided by the second lifting module (5). Both are used to carry heavy objects and can be at different heights under the independent control of the double winch module, adapting to the hoisting of non-irregular heavy objects. At the same time, long heavy objects can be lifted smoothly under synchronous control.

[0016] Fixed platform (10): Fixedly installed above the rotating platform (11), it does not rotate with the rotating platform. It is used to support the first hoist module (6), the second hoist module (7), monitoring equipment, and control unit, providing a stable installation environment for the hoist module and control unit and ensuring their accurate operation.

[0017] Rotating platform (11): It can rotate 360°, driving the hoisting frame (1), tower crane boom (2) and lifting module to rotate synchronously, adjusting the lifting position, without affecting the stable operation of the fixed platform (10) and the winch module and control unit.

[0018] II. Heavy-duty anti-sway dual-winch synchronous lifting control method

[0019] The control method of this invention is applied to the above-mentioned heavy-duty anti-sway dual-winch synchronous lifting tower crane device. The core control logic revolves around "synchronous lifting, anti-sway adjustment, and precise control," and specifically includes the following steps:

[0020] S1. Initialization and debugging: Start the control unit, calibrate the zero point of the rotation speed of the first hoist module (6) and the second hoist module (7), calibrate the tension reference value of the wire rope (4) (dedicated to the first hoist module) and the wire rope of the second hoist module (5) respectively, check the operating status of the first hydraulic motor (61), the first gearbox (62), the first hoist drum (63), the hoist drum side bracket (64), the two hoist modules, and the hook, and ensure that all components are firmly connected and operating normally; at the same time, calibrate the attitude sensor to ensure that it can accurately collect load swing data and the calibration error does not exceed 0.5mm.

[0021] S2. Synchronous lifting control: According to the type of heavy object being lifted (long heavy object / non-irregular heavy object), the lifting parameters are set through the control unit; when lifting a long heavy object, the first winch module (6) and the second winch module (7) are controlled to operate synchronously, and the speed of the first hydraulic motor (61) and the corresponding hydraulic motor of the second winch module are adjusted to be consistent, so as to maintain the tension balance of the wire rope (4) (dedicated to the first lifting module) and the wire rope of the second lifting module (5), respectively, and drive the first lifting module (3) and the second lifting module (5) to lift synchronously, so as to realize the synchronous traction of both ends of the long heavy object and avoid the initial swaying.

[0022] S3. Anti-sway adjustment control: During the lifting process, the attitude sensor collects load sway data in real time and transmits the data to the control unit. When the sway amplitude exceeds the safety threshold (not exceeding 0.3m), the control unit automatically outputs adjustment commands to adjust the difference in rope speed between the double winch modules. This, along with the first lifting module (3) and the second lifting module (5) sliding along the tower crane boom (2), forms a reverse damping force to suppress load sway until the sway amplitude drops to within the safe range.

[0023] S4. Operation completion control: When the hoisted load reaches the designated position, the control unit synchronously reduces the drive speed of the dual winch modules, slowly stops the rotation of the winch drum, and locks the first winch drum (63) and the winch drum corresponding to the second winch module; at the same time, it performs secondary detection on the tension of the wire rope (4) (dedicated to the first hoisting module) and the wire rope of the second hoisting module (5), checks for potential load swaying hazards, ensures stable load placement, and completes the hoisting operation.

[0024] III. Beneficial Effects

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Solve the problem of swaying of long heavy objects: By working together with dual winch modules and precise synchronous control logic, the steel wire ropes connected to each other (the special steel wire rope of the first lifting module (4) and the steel wire rope of the second lifting module) are wound and released synchronously to pull long heavy objects from both ends, greatly reducing the swaying amplitude and improving the safety of operation; at the same time, through the linkage of attitude sensor and control unit, sudden swaying during the lifting process can be suppressed in real time.

[0027] 2. Adaptable to lifting non-irregular heavy objects: The dual winch module can be independently controlled by the control unit to flexibly adjust the winding and unwinding lengths of the two wire ropes (wire rope (4) and the wire rope provided by the second lifting module) so that the two hooks are at different heights and can be accurately adapted according to the center of gravity distribution of non-irregular heavy objects to meet the lifting needs of various irregular heavy objects.

[0028] 3. Stable operation and precise control: The fixed platform and the rotating platform are designed in layers so that they do not interfere with each other. The winch module and the lifting module work together to reduce equipment failure. The control method adopts closed-loop control, which has a rapid response and high synchronization accuracy, and can effectively ensure the smoothness of the hoisting process.

[0029] 4. Wide adaptability and convenient operation: The compact structure is suitable for various construction scenarios, balancing efficiency and safety; the clear control logic enables automated control through the monitoring room, reducing operational difficulty and improving construction efficiency; the standardized component numbering and clear connection relationships facilitate equipment maintenance and repair. Attached Figure Description

[0030] Figure 1: A schematic diagram of the overall structure of the tower crane, showing the positional relationship of the lifting frame (1), tower crane boom (2), fixed platform (10), and rotating platform (11), and labeling all core components with numbers (1-11);

[0031] Figure 2 : Enlarged schematic diagram of the lifting module, showing the structure of the first lifting module (3) and the second lifting module (5), with the secondary component numbers (31-34) marked;

[0032] Figure 3 Enlarged schematic diagram of the hoisting module, showing the structure of the first hoisting module (6) and the second hoisting module (7), with the secondary component numbers (61-64) marked.

[0033] The components include: 1. Lifting frame; 2. Tower crane boom; 3. First lifting module; 4. Wire rope (dedicated to the first lifting module); 5. Second lifting module; 6. First winch module; 7. Second winch module; 8. First hook; 9. Second hook; 10. Fixed platform; 11. Rotating platform; 31. Lifting trolley of the first lifting module; 32. Moving pulley of the first lifting module; 33. Upper pulley of the first lifting module; 34. Lower pulley of the first lifting module; 61. Hydraulic motor of the first winch module; 62. Gearbox of the first winch module; 63. Winch drum of the first winch module; 64. Side support of the first winch module. Detailed Implementation

[0034] The following detailed description of the specific implementation process of the present invention (device assembly + control method execution) is provided with reference to three accompanying drawings:

[0035] 1. Equipment assembly

[0036] The rotating platform (11) is fixedly installed at the designated working position, ensuring smooth rotation and secure fixation; the lifting frame (1) is fixed on the rotating platform (11), and the tower crane boom (2) is fixedly connected to the lifting frame (1), adjusting the boom's level; the first lifting module (3) and the second lifting module (5) are slidably installed on both sides of the tower crane boom (2), ensuring smooth sliding along the boom; the first winch module (6) and the second winch module (7) are fixedly installed on the fixed platform (10), adjusting... Align the position with the corresponding lifting module; connect the first winch module (6), the first lifting module (3), and the first hook (8) in sequence with wire rope (4), and connect the second winch module (7), the second lifting module (5), and the second hook (9) in sequence with the wire rope provided by the second lifting module (5). Check all connections to ensure there is no looseness; connect the control unit, attitude sensor, dual winch module, lifting module, and monitoring equipment through signal transmission lines, and debug the smooth transmission of control signals.

[0037] 2. Control methods implemented (lifting long and heavy objects)

[0038] S1. Initialization and debugging: Start the control unit, calibrate the zero point of the rotation speed of the first hoist module (6) and the second hoist module (7), calibrate the tension reference value of the wire rope (4) (dedicated to the first hoist module) and the wire rope of the second hoist module (5) respectively, check that the first hydraulic motor (61), the first gearbox (62), the first hoist drum (63) and the two hoist modules and hook are operating normally, the attitude sensor is calibrated and the data acquisition is accurate.

[0039] S2. Synchronous lifting: The two ends of the long strip of heavy object are respectively attached to the first hook (8) and the second hook (9). The lifting speed and tension threshold are set in the monitoring room. The control unit issues a command to drive the first winch module (6) and the second winch module (7) to operate synchronously. The first hydraulic motor (61) and the corresponding hydraulic motor of the second winch module have the same speed, which maintains the tension balance of the wire rope (4) and the wire rope of the second lifting module (5), respectively, and drives the first lifting module (3) and the second lifting module (5) to lift and lower synchronously, and smoothly lift the heavy object.

[0040] S3. Anti-sway adjustment: During the lifting process, the attitude sensor collects load sway data in real time. If the sway amplitude exceeds 0.3m, the control unit automatically adjusts the difference in rope speed between the double winch modules. Together with the first lifting module (3) and the second lifting module (5), the control unit slides and fine-tunes along the tower crane boom (2) to suppress load sway until the sway amplitude drops to a safe range.

[0041] S4. Finishing the job: The rotating platform (11) drives the crane frame (1), tower crane boom (2) and the heavy object to rotate and adjust to the designated placement position; the control unit synchronously reduces the speed of the double winch module, slowly stops the winch drum rotation, and locks the first winch drum (63) and the winch drum corresponding to the second winch module; the tension of the wire rope (4) and the wire rope of the second lifting module (5) is checked for the second time. After confirming that there is no shaking, the heavy object is unloaded and the job is completed.

[0042] 3. Control methods implemented (for non-irregularly shaped heavy objects)

[0043] S1. Initialization and debugging: The steps are the same as for hoisting long heavy objects. Ensure that all components and control units are operating normally, and calibrate the tension reference values ​​of the two wire ropes respectively.

[0044] S2. Adaptive Lifting: Based on the shape and center of gravity distribution of the non-irregular heavy objects, the control unit independently adjusts the rotation speed of the first winch module (6) and the second winch module (7) by setting the height difference between the two hooks through the monitoring room, and adjusts the winding and unwinding length of the wire rope (4) and the wire rope of the second lifting module (5) respectively, so that the first hook (8) and the second hook (9) are at the height of the adaptive center of gravity, and the heavy objects are smoothly hung.

[0045] S3. Anti-sway adjustment: During the lifting process, the attitude sensor monitors the load status in real time. If swaying occurs, the control unit automatically adjusts the speed of the corresponding winch module to suppress swaying and ensure stable lifting.

[0046] S4. Work Completion: Transfer the heavy object to the designated location, simultaneously reduce the speed of the dual winch modules, lock the winch drum, perform a second check on the tension of the two wire ropes, and after confirming that the load is stable, unload the heavy object, shut down the control unit, and complete the work.

[0047] This invention features a reasonable structure and convenient operation. Through the collaborative design of dual winches and dual lifting modules, coupled with precise control methods, it effectively solves the problems of swaying of long heavy objects and inconvenience in lifting non-irregularly shaped heavy objects. It is standardized in numbering, stable in operation, and precise in control, and can be widely used in high-altitude lifting operations in various construction projects.

Claims

1. A heavy-duty, anti-sway, dual-winch synchronous lifting tower crane device, characterized in that, It includes a lifting frame (1), a tower crane boom (2), a first lifting module (3), a wire rope (4), a second lifting module (5), a first winch module (6), a second winch module (7), a first hook (8), a second hook (9), a fixed platform (10), and a rotating platform (11); the rotating platform (11) can drive the entire device to rotate, and the fixed platform (10) is located above the rotating platform (11). The two are independent of each other and do not interfere with each other; the first winch module (6) and the second winch module (7) constitute a dual winch drive unit, which is fixedly installed on the fixed platform (10); The first lifting module (3) includes a first lifting trolley (31), a moving pulley (32), an upper pulley (33) and a lower pulley (34). The wire rope (4) is dedicated to the first lifting module (3). The second lifting module (5) has the same structure as the first lifting module (3) (it comes with its own wire rope and does not use the number (4)). The first winch module (6) includes a first hydraulic motor (61), a first gearbox (62), a first winch drum (63) and a side support (64). The side support (64) provides stable support for the first winch drum (63) and is suitable for heavy-duty synchronous lifting and anti-sway control.

2. The heavy-duty anti-sway double-winch synchronous lifting tower crane device according to claim 1, characterized in that, The fixed platform (10) is used to support the first winch module (6), the second winch module (7) and the monitoring equipment. It is fixedly installed above the rotating platform (11) and does not have a rotation function. It provides a stable installation foundation for the synchronous operation of the two winches and anti-sway control, and ensures control accuracy.

3. The heavy-duty anti-sway double-winch synchronous lifting tower crane device according to claim 1, characterized in that, The rotating platform (11) can rotate 360°, driving the hoist frame (1) and tower crane boom (2) to rotate synchronously, adapting to multi-directional heavy-duty hoisting operations, and achieving stable hoisting with the dual winch drive unit.

4. The heavy-duty anti-sway double-winch synchronous lifting tower crane device according to claim 1, characterized in that, The first lifting module (3) and the second lifting module (5) are both slidably installed on the tower crane boom (2); the upper pulley (33) of the first lifting module (3) is connected to the luffing mechanism, and the lower pulley (34) is respectively connected to the first hook (8) and the special wire rope (4); the corresponding pulley of the second lifting module (5) is connected to the second hook (9) and the wire rope it carries. Both are adapted to the double winch traction layout to ensure synchronous lifting accuracy.

5. The heavy-duty anti-sway double-winch synchronous lifting tower crane device according to claim 1, characterized in that, The first hydraulic motor (61) is connected to the first gearbox (62) for transmission. The first gearbox (62) drives the first winch drum (63) to rotate. The steel wire rope (4) of the first lifting module (3) is wound around the pulley (34), with one end connected to the first hook (8) and the other end adapted to the first winch drum (63) to achieve uniform speed winding and unwinding.

6. The heavy-duty anti-sway double-winch synchronous lifting tower crane device according to claim 1, characterized in that, The second lifting module (5) is connected to the second winch module (7) via its own wire rope, forming a complete traction circuit with the first lifting module (3), the first winch module (6) and the special wire rope (4), and is adapted for synchronous lifting and anti-sway control.

7. A heavy-duty anti-sway dual-winch synchronous lifting control method, applied to the tower crane device described in claims 1-6, characterized in that, Includes the following steps: S1. Initialization and debugging: Calibrate the zero point of the first hoist module (6) and the second hoist module (7), check the operating status of the first hydraulic motor (61), the first gearbox (62), the first hoist drum (63) and the side support (64), and at the same time check the special wire rope (4) of the first lifting module (3), the wire rope carried by the second lifting module (5) and the connection status of each component to ensure that the components are normal; S2. Synchronous lifting: Control the synchronous operation of the dual winch modules, adjust the speed of the first hydraulic motor (61) and the corresponding hydraulic motor of the second winch module, respectively maintain the tension balance of the special wire rope (4) of the first lifting module (3) and the wire rope carried by the second lifting module (5), and realize the synchronous lifting of the dual lifting modules; S3. Anti-sway adjustment: Collect the load status through the attitude sensor, automatically adjust the speed of the dual winches, and suppress the swaying of the hoisting; S4. Finishing Operation: After lifting is completed, lock the winch device, check the tension of the two wire ropes and the operating status of each component to ensure operational safety.

8. The control method according to claim 7, characterized in that, In step S1, the calibration error of the first hydraulic motor (61), the first gearbox (62), and the first winch (63) does not exceed 0.5mm, and the wire rope (4) of the first lifting module (3) and the wire rope carried by the second lifting module (5) are not loose, ensuring synchronization accuracy.

9. The control method according to claim 7, characterized in that, In step S3, the attitude sensor collects load sway data in real time, and the control unit automatically adjusts the speed of the dual winches to keep the sway amplitude within 0.3m.

10. The control method according to claim 7, characterized in that, In step S4, the tension of the two wire ropes and the operating status of the winch device need to be checked a second time to identify potential swaying hazards and ensure the stability of subsequent operations.

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