CN113247809A - Crane type vibroflotation device winch control system and control method - Google Patents
Crane type vibroflotation device winch control system and control method Download PDFInfo
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- CN113247809A CN113247809A CN202110663978.6A CN202110663978A CN113247809A CN 113247809 A CN113247809 A CN 113247809A CN 202110663978 A CN202110663978 A CN 202110663978A CN 113247809 A CN113247809 A CN 113247809A
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- winch
- control system
- vibroflot
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- crane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/46—Control devices non-automatic electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
Abstract
The invention relates to the technical field of foundation construction, in particular to a hoisting control system and a control method of a crane-type vibroflot, wherein the system comprises a hoisting control system, a real-time detection device and a hoisting machine brake safety control system, the hoisting control system can remotely control the working state of a hoisting machine, the real-time detection device analyzes and judges whether the hoisting machine is in a normal working state according to collected data information and feeds back the data to a master controller and the hoisting machine brake safety control system in real time, and the independent hoisting machine brake safety control system can stop the hoisting machine in time according to abnormal signals. The device aims to collect the tension, speed and acceleration values of the vibroflot through a sensor and remotely control the rising and falling of the vibrator or change the movement speed; and the working state of the vibrator is comprehensively judged and analyzed according to the information of the sensor, and an independent winch brake safety control system is combined, so that safety accidents caused by the failure of the winch can be prevented.
Description
Technical Field
The invention belongs to the technical field of foundation construction, and particularly relates to a hoisting control system and a hoisting control method for a crane-type vibroflot.
Background
The vibroflotation device is a common device for vibroflotation construction, and can improve the bearing capacity of the foundation, reduce the settlement, increase the stability of the foundation and improve the earthquake liquefaction resistance after vibroflotation construction is carried out on the foundation. Besides the vibroflotation device, a walking type hoisting device, a pumping and water conveying system, a control operation table and the like are needed during vibroflotation construction.
Most of the existing vibroflotation construction methods rely on a crane hoist controller to control the direction, position and speed of a vibroflotation device. In the existing construction operation, the winch can be used for controlling simple starting, stopping and positive and negative rotation speeds, the operation of the winch needs to be completed manually by an operator, the whole operation process is complex, the motion parameters of the vibroflot need to be monitored constantly, and the vibroflot can not be well applied to the existing construction environment.
The existing crane-type vibroflot is not designed with a safety protection system, and the occurrence of safety accidents is not considered under the condition that the vibroflot is excessively quickly lifted to cause the breakage of a steel wire rope in an emergency or the free falling body of a lifting rope moves in a winch failure.
Disclosure of Invention
In order to solve the problems that the automation degree of the existing crane-type vibroflot hoist is not high and an effective safety control system is not available, the invention provides a crane-type vibroflot hoist control system and a control method, wherein the control system acquires the tension, the speed and the acceleration value of a vibroflot through a sensor, and can remotely control the rising and the falling of a vibrator or change the movement speed; the invention can comprehensively judge and analyze the working state of the vibrator, and can prevent safety accidents caused by the failure of the winch by combining an independent winch brake safety control system.
The technical scheme adopted by the invention is as follows:
the hoisting control method of the crane-type vibroflot comprises the following steps:
1) the master controller sends an instruction to a winch control system to operate the winch to control the vibroflot to ascend and descend or change the speed;
2) the real-time detection device collects data of the tension sensor, the speed sensor and the acceleration sensor in real time, and sends the data to the master controller and the winch brake safety control system after analyzing the motion state by a microcontroller in the real-time detection device;
3) the winch brake safety control system judges whether the winch is in a safety state or not according to data sent by the real-time detection device, and if not, the power supply of the winch is cut off or a safety device in the winch is started to stop the winch.
Preferably, the winch control system adopts a PID control algorithm, so that the movement speed of the vibroflot is in a smoothly changing state.
Preferably, the data signal sent by the microcontroller in the step 2) is transmitted to the master controller after being isolated by the photoelectricity, and then transmitted to the frequency converter in the winch control system by the master controller, and the frequency converter controls the ascending, descending or speed changing of the winch.
Preferably, the tension sensor is arranged at the joint of the steel rope and the vibroflot, the speed sensor is arranged at the winch, and the acceleration sensor is arranged on the vibroflot.
Preferably, the speed sensor is an encoder, and an output signal of the encoder is transmitted to the microcontroller after being subjected to photoelectric isolation.
Preferably, the master controller is a vehicle-mounted flat plate, the vehicle-mounted flat plate is arranged on the vibroflotation device crane, and the vehicle-mounted flat plate is in wireless communication connection with the winch control system and the real-time detection device.
The crane-type vibroflotation device hoisting control system comprises a hoisting machine control system, a real-time detection device and a hoisting machine brake safety control system;
the winch control system is in wireless communication connection with the master controller and comprises a frequency converter, the frequency converter is connected with the winch motor, and the winch motor is controlled through the frequency converter;
the real-time detection device comprises a tension sensor, a speed sensor and an acceleration sensor, and is in wireless communication connection with the master controller and the winch brake safety control system;
the winch brake safety control system comprises a safety control device inside the winch, and the winch is controlled to stop working through the safety control device.
Preferably, a microcontroller is arranged in the real-time detection device, the microcontroller is connected with the tension sensor, the speed sensor and the acceleration sensor, and data of the tension sensor, the speed sensor and the acceleration sensor are analyzed and then transmitted to the master controller.
Preferably, the tension sensor is arranged at the joint of the steel rope and the vibroflot, the speed sensor is arranged at the winch, and the acceleration sensor is arranged on the vibroflot.
Preferably, the master controller is a vehicle-mounted flat plate, the vehicle-mounted flat plate is arranged on the vibroflotation device crane, and the vehicle-mounted flat plate is in wireless communication connection with the winch control system and the real-time detection device.
The invention has the advantages that:
1) the starting, stopping and forward and reverse rotating speeds of the winch can be remotely controlled through the vehicle-mounted panel through the winch control system, and the speed of the winch can be controlled to change smoothly through the PID algorithm, so that the situation that a steel rope is broken and a vibroflot falls off due to overlarge pulling force caused by sudden speed change is prevented;
2) according to the invention, the real-time detection device can be used for acquiring data of the tension sensor, the speed sensor and the acceleration sensor in real time, and after the acquired data are integrated and analyzed by the microcontroller, the analysis state is sent to the master controller and the winch brake safety control system, so that the winch is ensured to be in a safe working environment, and if abnormity occurs, the winch brake safety control system can be used for controlling to stop;
3) the winch control system and the winch brake safety control system are two systems which operate independently and do not interfere and control with each other; when the vibration impact device rises too fast to cause the steel rope to break or the free falling body of the vibration impact device moves due to the fault of a control system of the winch, the braking safety control system of the winch is started to emergently power off the winch, or a safety control device in the winch is controlled to lock the steel rope of the winch, so that the safety fault is avoided.
Drawings
FIG. 1 is a block diagram of the control system of the present invention;
FIG. 2 is a flow chart of the operation of the winch safety monitoring system according to the present invention;
FIG. 3 is a schematic structural diagram of a winch control device;
fig. 4 is a schematic structural diagram of the real-time detection device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention is suitable for vibroflotation construction in foundation operation.
The hoisting control method of the crane-type vibroflot comprises the following steps:
1) the master controller sends an instruction to a winch control system to operate the winch to control the vibroflot to ascend and descend or change the speed; the winch control system adopts a PID control algorithm, so that the movement speed of the vibroflot is in a smoothly changing state. The general controller is a vehicle-mounted flat plate, the vehicle-mounted flat plate is arranged on the vibroflotation device crane, and the vehicle-mounted flat plate is in wireless communication connection with the winch control system and the real-time detection device, so that the remote control of the winch can be realized.
2) As shown in fig. 2, which is a working flow chart of the winch safety monitoring system, the real-time detection device collects data of the tension sensor, the speed sensor and the acceleration sensor in real time, and sends the data to the master controller and the winch brake safety control system after analyzing the motion state by the microcontroller in the real-time detection device; the real-time detection device uninterruptedly acquires the AD values of the tension, the speed and the acceleration, the AD values are converted into real-time data after the calculation of the microcontroller, and the microcontroller analyzes the motion state of the vibroflot. The speed sensor is an encoder, and an output signal of the encoder is transmitted to the microcontroller after being subjected to photoelectric isolation.
The data signal sent by the microcontroller is also transmitted to the master controller after being isolated by photoelectricity, and then transmitted to the frequency converter in the winch control system by the master controller, and the frequency converter controls the ascending, descending or changing speed of the winch. The photoelectric isolation can enable the transmitted signals to be more stable and accurate.
3) The winch brake safety control system judges whether the winch is in a safety state or not according to data sent by the real-time detection device, and if not, the power supply of the winch is cut off or a safety device in the winch is started to stop the winch. When the vibroflot is in an abnormal working state, a safety control device in the winch brake safety control system is started, and the safety control device can cut off the power of the winch and stop the steel strand.
As shown in fig. 1, it is a structure diagram of a hoist control system of a crane-type vibroflot, comprising a hoist control system, a real-time detection device and a hoist brake safety control system; the system comprises a winch control system, a winch brake safety control system, a main controller and a real-time device, wherein the winch control system and the winch brake safety control system are mutually independent, the winch brake safety control system works independently in the system, is not controlled by the main controller and the winch control system, only receives sensor data returned by the real-time device, judges automatically, and automatically controls the safety control device once abnormity occurs.
The winch control system is in wireless communication connection with the master controller, in the embodiment, the master controller is a vehicle-mounted flat plate, the vehicle-mounted flat plate is arranged on a vibroflot crane, the winch control system comprises a frequency converter, the frequency converter is connected with a winch motor, and the frequency converter is used for controlling the winch motor; the frequency converter in the winch control system is controlled by the control instruction sent by the master controller, and then the motor of the winch is controlled by the frequency converter, so that the vibroflotation device is controlled. As shown in fig. 3, the schematic diagram of the structure of the control system of the winch is that a signal fed back by the microcontroller is detected in real time and sent to the frequency converter, and finally the frequency converter sets the starting, stopping and speed of the winch and feeds back the state of the winch to the microcontroller.
The real-time detection device comprises a tension sensor, a speed sensor and an acceleration sensor, and is in wireless communication connection with the master controller and the winch brake safety control system; the real-time detection device integrates data collected by the tension sensor, the speed sensor and the acceleration sensor, judges whether the vibroflotation device is in a normal working state or not, sends the state to the master controller in real time to drink the winch brake safety control system, if the vibroflotation device is in the normal working state, the winch brake safety control system does not work, and if the vibroflotation device is in an abnormal state, the winch brake safety control system works to stop the winch. The main controller receives the sensor data returned by the real-time detection device, calculates through a PID algorithm, and sends a control instruction to the winch control system, so that the starting, stopping and forward and reverse rotation of the winch are controlled, and the PID algorithm can ensure that the winch runs at a smooth speed.
The winch brake safety control system comprises a safety control device inside the winch, and the winch is controlled to stop working through the safety control device. The winch brake safety control system calculates and judges the data of the sensor collected by the real-time detection device, and directly controls the safety control device inside the winch to stop the winch when a fault occurs, so that safety accidents are avoided.
As shown in fig. 4, the structure of the real-time detection device is schematically illustrated, a real-time detection microcontroller is arranged in the real-time detection device, and the real-time detection microcontroller is connected with the tension sensor, the speed sensor and the acceleration sensor, and transmits the data of the tension sensor, the speed sensor and the acceleration sensor to the master controller after analyzing the data. The tension sensor is arranged at the joint of the steel rope and the vibroflot, so that the tension on the steel rope can be accurately measured; the speed sensor is arranged at the winch and is realized by an encoder arranged at the winch; the acceleration sensor is arranged on the vibroflot and is mainly used for measuring the acceleration of the vibroflot, namely the acceleration on the steel rope. The real-time detection microcontroller can analyze and judge whether the vibroflotation device is in a normal working state at present according to the three sensors, and timely sends a control instruction when an abnormality occurs to control a safety control device inside the winch, so that a steel rope is locked to avoid a safety accident.
The above embodiments are preferred embodiments, it should be noted that the above preferred embodiments should not be considered as limiting the invention, and the scope of protection of the invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The hoisting control method of the crane-type vibroflot is characterized by comprising the following steps of:
1) the master controller sends an instruction to a winch control system to operate the winch to control the vibroflot to ascend and descend or change the speed;
2) the real-time detection device collects data of the tension sensor, the speed sensor and the acceleration sensor in real time, and sends the data to the master controller and the winch brake safety control system after analyzing the motion state by a microcontroller in the real-time detection device;
3) the winch brake safety control system judges whether the winch is in a safety state or not according to data sent by the real-time detection device, and if not, the power supply of the winch is cut off or a safety device in the winch is started to stop the winch.
2. The hoisting control method for the crane-type vibroflot according to claim 1, characterized in that: the winch control system adopts a PID control algorithm, so that the movement speed of the vibroflot is in a smoothly changing state.
3. The hoisting control method for the crane-type vibroflot according to claim 2, characterized in that: and 2) transmitting the data signals sent by the microcontroller to the master controller after photoelectric isolation, transmitting the data signals to a frequency converter in a winch control system by the master controller, and controlling the ascending, descending or speed change of the winch by the frequency converter.
4. The hoisting control method for the crane-type vibroflot according to claim 3, characterized in that: the tension sensor is arranged at the joint of the steel rope and the vibroflotation device, the speed sensor is arranged at the winch, and the acceleration sensor is arranged on the vibroflotation device.
5. The hoisting control method for the crane-type vibroflot according to claim 4, characterized in that: the speed sensor is an encoder, and an output signal of the encoder is transmitted to the microcontroller after being subjected to photoelectric isolation.
6. The hoisting control method for the crane-type vibroflot according to claim 5, characterized in that: the general controller is a vehicle-mounted flat plate, the vehicle-mounted flat plate is arranged on the vibroflotation device crane, and the vehicle-mounted flat plate is in wireless communication connection with the winch control system and the real-time detection device.
7. Crane type vibroflotation ware hoist control system, its characterized in that: the system comprises a winch control system, a real-time detection device and a winch brake safety control system;
the winch control system is in wireless communication connection with the master controller and comprises a frequency converter, the frequency converter is connected with the winch motor, and the winch motor is controlled through the frequency converter;
the real-time detection device comprises a tension sensor, a speed sensor and an acceleration sensor, and is in wireless communication connection with the master controller and the winch brake safety control system;
the winch brake safety control system comprises a safety control device inside the winch, and the winch is controlled to stop working through the safety control device.
8. The crane-type vibroflot hoist control system of claim 7, wherein: the real-time detection device is internally provided with a microcontroller, the microcontroller is connected with the tension sensor, the speed sensor and the acceleration sensor, and data of the tension sensor, the speed sensor and the acceleration sensor are analyzed and then transmitted to the master controller.
9. The crane-type vibroflot hoist control system of claim 8, wherein: the tension sensor is arranged at the joint of the steel rope and the vibroflotation device, the speed sensor is arranged at the winch, and the acceleration sensor is arranged on the vibroflotation device.
10. The crane-type vibroflot hoist control system of claim 9, wherein: the general controller is a vehicle-mounted flat plate, the vehicle-mounted flat plate is arranged on the vibroflotation device crane, and the vehicle-mounted flat plate is in wireless communication connection with the winch control system and the real-time detection device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110663978.6A CN113247809A (en) | 2021-06-16 | 2021-06-16 | Crane type vibroflotation device winch control system and control method |
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| CN202110663978.6A CN113247809A (en) | 2021-06-16 | 2021-06-16 | Crane type vibroflotation device winch control system and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670644A (en) * | 2021-09-02 | 2021-11-19 | 中国华能集团有限公司 | Vibroflotation full-parameter monitoring method and system |
| CN113766447A (en) * | 2021-08-31 | 2021-12-07 | 四川华能泸定水电有限公司 | Vibroflotation construction site communication system and vibroflotation construction site communication method |
| CN114115139A (en) * | 2021-10-18 | 2022-03-01 | 中国华能集团有限公司 | Intelligent vibroflotation control system and method |
| CN115215246A (en) * | 2022-06-28 | 2022-10-21 | 四川华能泸定水电有限公司 | Winch control method and device for manual-automatic integrated crane |
-
2021
- 2021-06-16 CN CN202110663978.6A patent/CN113247809A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113766447A (en) * | 2021-08-31 | 2021-12-07 | 四川华能泸定水电有限公司 | Vibroflotation construction site communication system and vibroflotation construction site communication method |
| CN113766447B (en) * | 2021-08-31 | 2023-07-21 | 四川华能泸定水电有限公司 | Communication system and method for vibroflotation construction site |
| CN113670644A (en) * | 2021-09-02 | 2021-11-19 | 中国华能集团有限公司 | Vibroflotation full-parameter monitoring method and system |
| CN114115139A (en) * | 2021-10-18 | 2022-03-01 | 中国华能集团有限公司 | Intelligent vibroflotation control system and method |
| CN114115139B (en) * | 2021-10-18 | 2024-01-26 | 中国华能集团有限公司 | Intelligent vibroflotation control system and method |
| CN115215246A (en) * | 2022-06-28 | 2022-10-21 | 四川华能泸定水电有限公司 | Winch control method and device for manual-automatic integrated crane |
| CN115215246B (en) * | 2022-06-28 | 2024-02-27 | 四川华能泸定水电有限公司 | Manual-automatic integrated crane hoisting control method and device |
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