Lifting hook traction control system

Abstract

According to the lifting hook traction control system provided by the invention, the intelligent lifting hook acquisition system is arranged on the lifting hook to acquire the lifting hook inclination angle and acceleration data, and the lifting hook inclination angle data is matched with the action of a tower crane mechanism, so that the lifting hook can automatically and stably move according to a specified direction when a worker pulls the lifting hook, and the lifting hook stops stably and does not swing when stopping. When the lifting hook moves in a short distance, a worker can control the moving direction and speed of the lifting hook by himself / herself; the operation efficiency can be improved, a talkback communication link between a commander and a driver is omitted when the lifting hook moves in a short distance, and the lifting hook can stably operate and stop; the intelligent lifting hook collecting system achieves self-power generation through lifting hook operation, a solar panel and the like, then electric energy is stored in a battery, and manual charging is not needed. And the intelligent lifting hook enters a low-power-consumption mode when the tower crane stops for a long time, and is automatically awakened after the lifting hook operates to generate power, so that the utilization efficiency of electric energy is improved. The problems that in the prior art, the safety risk is large, the control efficiency is low, and the control difficulty is large are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of tower crane control systems, and more specifically, relates to a hook traction control system. Background Technology

[0002] Currently, when tower cranes need to move the hook a short distance during operation, a ground commander needs to use a walkie-talkie to instruct the operator to move the hook in the designated direction. This existing technical solution has the following drawbacks: 1. High safety risk: When the operator moves the tower crane a short distance, workers are typically near the hook, posing a significant safety risk; 2. Low efficiency: The commander communicates with the tower crane operator via walkie-talkie based on worker needs, instructing the operator, which involves multiple people communicating and relaying information, greatly reducing work efficiency; 3. Large hook sway: During manual operation, the hook will sway significantly, requiring a skilled operator to maintain control, placing high demands on the operator's skills. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a hook traction control system. This system, by configuring an intelligent hook acquisition system on the hook, collects hook tilt angle and acceleration data. Then, by coordinating the hook tilt angle data with the tower crane mechanism's movements, it enables the hook to automatically and smoothly move in a designated direction when pulled by the worker, and to remain stationary without swaying when stopped. This invention solves the problems of high safety risks, low work efficiency, and high operational difficulty inherent in existing technologies. Specifically, the system has the following advantages: 1. Improved safety: Workers can control the hook's direction and speed during short-distance movements; 2. Increased operational efficiency: Communication between the commander and operator is eliminated during short-distance hook movements, allowing for smooth hook operation and shutdown; 3. Self-generation: The intelligent hook acquisition system generates electricity through hook operation and solar panels, storing the energy in batteries without manual charging; 4. Automatic wake-up: The intelligent hook enters a low-power mode when the tower crane is not in use for extended periods, automatically waking up when the hook generates electricity, thus improving energy utilization efficiency. The technical solution adopted in this invention is as follows: A hook traction control system includes a tower crane, a hook, a tower crane control system, and an intelligent hook acquisition system configured on the hook. The intelligent hook acquisition system includes a MEMS sensor, a wireless communication module, a generator, and a battery energy storage module.

[0004] Furthermore, the MEMS sensor can monitor the hook tilt angle and acceleration in real time and transmit them to the tower crane control system via a wireless communication module. After receiving the hook tilt angle and acceleration data, the tower crane control system controls the tower crane's luffing and slewing mechanisms through a logic control unit.

[0005] Furthermore, the tower crane control system detects the direction of the manually traction hook based on the received tilt angle data, and smoothly controls the hook to move in the traction direction.

[0006] Furthermore, the tilt angle data is divided into two directions: amplitude variation and slewing. The traction direction is determined by positive and negative values. The larger the tilt angle, the faster the hook travels.

[0007] Furthermore, the tower crane control system implements closed-loop hook anti-sway control based on the received acceleration data.

[0008] Furthermore, the acceleration data is divided into two directions: amplitude and rotation, and the swing direction is determined by the positive and negative values.

[0009] Furthermore, when the worker cancels the traction, the hook swings back at an angle of 0, and the tower crane control system controls the hook to stop smoothly.

[0010] Furthermore, the tilt angle sampling has a zero-point calibration function.

[0011] Furthermore, during normal operation, the hook can drive the generator to rotate via the rotation of the hook pulley. The generator generates electricity to charge the battery, and the battery supplies power to the intelligent hook data acquisition system.

[0012] Furthermore, the battery energy storage module is equipped with a solar panel.

[0013] Furthermore, the tower cranes include luffing jib tower cranes, flat-top tower cranes, tower cap tower cranes, portal cranes, bridge cranes, gantry cranes, and other types.

[0014] Furthermore, if the intelligent hook acquisition system experiences abnormal situations such as wireless communication data interruption / data acquisition failure / insufficient battery power during the normal control of the hook traction action by the tower crane control system, the tower crane control system will stop the hook traction action and exit the hook traction state.

[0015] Furthermore, the intelligent hook acquisition system enters a low-power mode when the hook remains inactive for 10 consecutive minutes to reduce power consumption, and automatically wakes up when the hook pulley rotates again. The beneficial effects of this invention are: This system uses an intelligent hook data acquisition system to collect hook tilt angle and acceleration data. This data, combined with the tower crane's mechanism movements, enables the hook to move automatically and smoothly in a designated direction when pulled by workers, and to come to a stable stop without swaying. This improves safety during hook pulling, increases operational efficiency, and enhances ease of use and energy efficiency through automatic wake-up and self-generating functions. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementations obtained by those skilled in the art without creative effort are within the scope of protection of this invention. Example

[0017] The system includes a tower crane, a hook, a tower crane control system, and an intelligent hook acquisition system configured on the hook. The intelligent hook acquisition system includes MEMS sensors, a wireless communication module, a generator, and a battery energy storage module.

[0018] More specifically, when the tower crane stops operating and the worker needs to move the hook a short distance, the tower crane operator will turn the switch to "hook traction", and the tower crane control system will enter the hook traction state.

[0019] More specifically, when the worker pulls the hook forward, causing it to tilt forward by 5° and maintain this tilt angle for 3 seconds, the MEMS sensor detects the tilt angle data and transmits it to the tower crane control system via the wireless module. The tower crane control system then initiates the hook traction action, moving forward at a low speed of 1Hz. When the worker increases the hook tilt angle to 10° and the luffing speed to 3Hz, the worker releases the hook, causing it to swing back. When the tilt angle is less than 5°, the tower crane control system stops the hook traction action. The MEMS sensor detects the hook's acceleration data in real time and transmits it to the tower crane control system via the wireless module. Based on the received acceleration data, the tower crane control system achieves a smooth, anti-sway stop while moving forward during luffing.

[0020] More specifically, when the worker pulls the hook backward, causing the hook to tilt backward by 10° and maintain this tilt angle for 3 seconds, the MEMS sensor detects the tilt angle data and transmits it to the tower crane control system via the wireless module. The tower crane control system then initiates the hook traction action, moving backward at a low speed of 3Hz. When the worker increases the hook tilt angle to 15° and the luffing speed to 5Hz, and the hook reaches the desired position, the worker releases the hook, causing it to swing back. When the tilt angle is less than 5°, the tower crane control system stops the hook traction action. The MEMS sensor detects the hook's acceleration data in real time and transmits it to the tower crane control system via the wireless module. Based on the received acceleration data, the tower crane control system achieves a smooth, anti-sway stop during the luffing backward movement.

[0021] More specifically, when the worker pulls the hook to the left rear, causing the hook to tilt backward by 5° and to the left by 5°, and maintains this tilt angle for 3 seconds, the MEMS sensor detects the tilt angle data and transmits it to the tower crane control system via the wireless module. The tower crane control system then initiates the hook traction action, with the luffing mechanism operating backward at a low speed of 1Hz and the slewing mechanism operating to the left at a low speed of 1Hz. When the worker increases the backward tilt angle to 15° and the left tilt angle to 10°, the luffing speed increases to 5Hz and the slewing speed increases to 3Hz, and after reaching the desired backward position, the backward tilt angle returns to 0°, and the left tilt angle remains unchanged. The MEMS sensor detects the acceleration (luffing) data of the hook in real time and transmits it to the tower crane control system via a wireless module. Based on the received acceleration data, the tower crane control system performs a smooth stop by preventing backward swaying during luffing, maintains a constant rotation speed, and releases the hook after reaching the desired position to the left. The hook then swings back, and when the leftward tilt angle is less than 5°, the tower crane control system stops the hook traction action. The MEMS sensor detects the acceleration (slewing) data of the hook in real time and transmits it to the tower crane control system via a wireless module. Based on the received acceleration data, the tower crane control system performs a smooth stop by turning left to prevent swaying.

[0022] More specifically, after the tower crane stops operating, if the worker needs to move the hook a short distance, and the tower crane operator does not turn the switch to "hook traction", the tower crane control system will not enter the hook traction state. If the worker pulls the hook backward, causing the hook to tilt backward by 10°, the tower crane control system will not initiate the hook traction action.

[0023] More specifically, if the intelligent hook acquisition system experiences abnormal situations such as wireless communication data interruption / data acquisition failure / insufficient battery power during the normal hook traction operation of the tower crane control system, the tower crane control system will stop the hook traction operation and exit the hook traction state.

[0024] More specifically, if the hook remains inactive for 10 consecutive minutes, the intelligent hook acquisition system enters a low-power mode to reduce power consumption, and automatically wakes up when the hook pulley rotates again. The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A hook pull control system, characterized by, The system comprises a tower crane, a hook, a tower crane control system, and an intelligent hook acquisition system configured on the hook, the intelligent hook acquisition system comprising a MEMS sensor, a wireless communication module, a generator, and a battery energy storage module, the MEMS sensor can monitor the hook inclination angle and acceleration data in real time and transmit them to the tower crane control system through the wireless communication module, after receiving the hook inclination angle and acceleration data, the tower crane control system controls the amplitude and slewing mechanism of the tower crane through a logic control unit.

2. The hook pull control system of claim 1, wherein, The tower crane control system can determine the direction of manually pulling the hook according to the received inclination data and control the hook to run in the pulling direction smoothly.

3. The hook pull control system of claim 2, wherein, The inclination data is divided into two directions of amplitude and slewing, and the pulling direction is determined by the positive and negative values, the greater the inclination, the faster the hook runs.

4. The hook pull control system according to any one of claims 1-3, characterized in that, The tower crane control system can realize closed-loop hook anti-swing control according to the received acceleration data.

5. The hook pull control system of claim 4, wherein, The acceleration data is divided into two directions of amplitude and slewing, and the swing direction is determined by the positive and negative values.

6. The hook haul control system of claims 1-3 or 5, wherein, During normal operation of the hook, the hook pulley can drive the generator to rotate, the generator generates electricity to charge the battery, and the battery supplies power to the intelligent hook acquisition system.

7. The hook draft control system of claims 1-3 or 5, wherein, The battery energy storage module is provided with a solar panel.

8. The hook draft control system of claim 6, wherein, During normal control of the tower crane control system on the hook pulling action, if the intelligent hook acquisition system has abnormal conditions such as wireless communication data interruption, acquisition data failure, and insufficient battery power, the tower crane control system stops the hook pulling action and exits the hook pulling state.

9. The hook pull control system of claim 8, wherein, The intelligent hook acquisition system automatically enters a low-power mode when the hook is not in action for 10 minutes, reducing power consumption, and automatically wakes up when the hook pulley rotates again.

10. The hook pull control system of claim 9, wherein, The intelligent hook acquisition system has a zero-point calibration function for the hook inclination angle data sampling.

11. The hook draft control system of claims 1-3 or 5 or 8-10, wherein, The tower crane comprises a boom tower crane, a flat-top tower crane, a tower cap tower crane, a portal bridge crane, a bridge door crane, a gantry crane, etc.

12. The hook pull control system of claim 11, wherein, The tower crane is provided with a "hook pulling" switch, and the tower operator can turn on / off the hook pulling control system through the "hook pulling" switch.