CN111634781A - Band-type brake failure protection system for elevator - Google Patents

Band-type brake failure protection system for elevator Download PDF

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Publication number
CN111634781A
CN111634781A CN202010341719.7A CN202010341719A CN111634781A CN 111634781 A CN111634781 A CN 111634781A CN 202010341719 A CN202010341719 A CN 202010341719A CN 111634781 A CN111634781 A CN 111634781A
Authority
CN
China
Prior art keywords
car
elevator
module
cpu
frequency converter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010341719.7A
Other languages
Chinese (zh)
Inventor
朱森峰
孙佳秀
张黎明
王浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canny Elevator Co Ltd
Original Assignee
Canny Elevator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canny Elevator Co Ltd filed Critical Canny Elevator Co Ltd
Priority to CN202010341719.7A priority Critical patent/CN111634781A/en
Publication of CN111634781A publication Critical patent/CN111634781A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/027Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/02Control systems without regulation, i.e. without retroactive action
    • B66B1/06Control systems without regulation, i.e. without retroactive action electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415Control system configuration and the data transmission or communication within the control system
    • B66B1/3423Control system configuration, i.e. lay-out
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415Control system configuration and the data transmission or communication within the control system
    • B66B1/3446Data transmission or communication within the control system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/002Indicators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0018Devices monitoring the operating condition of the elevator system
    • B66B5/0031Devices monitoring the operating condition of the elevator system for safety reasons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B2201/00Aspects of control systems of elevators
    • B66B2201/30Details of the elevator system configuration
    • B66B2201/304Transit control

Abstract

The invention discloses a contracting brake failure protection system for an elevator, which comprises a control mainboard and a frequency converter, wherein the control mainboard comprises a control circuit board; the control main board comprises a car side CPU, an I/O module, a communication module, a power module, a frequency converter side CPU and a driving module; a flat layer door opening signal and a band-type brake detection signal are transmitted to a car side CPU through an I/O module; when the elevator is opened on a flat layer and the band-type brake fails, the cage side CPU controls the cage to give an alarm, and the frequency converter side CPU transmits a torque holding signal to the frequency converter; after the frequency converter receives the torque maintaining signal, the frequency converter transmits the electric energy to the elevator tractor, so that the tractor maintains the torque and the elevator keeps static. Aiming at the brake failure when the elevator is opened on the flat floor, the system continuously outputs a holding torque for counteracting the vehicle sliding acting force, thereby providing guarantee for the safe evacuation of passengers; by means of voice broadcasting, car closing display, button cancel registration, car closing illumination and the like, passengers can be aware of danger, and personal injury accidents can be effectively avoided.

Description

Band-type brake failure protection system for elevator
Technical Field
The invention belongs to the technical field of elevator safety, and particularly relates to a band-type brake failure protection system for an elevator.
Background
The band-type brake is used for reliably braking the elevator when the elevator stops or is leveled, prevents the occurrence of abnormal car slipping accidents, and is an important braking component of the elevator. If the elevator is out of work, the consequences caused by the failure of the elevator, such as the top rushing or the bottom squatting of the elevator, can be serious, and the life and property safety of people can be directly harmed.
At present, a plurality of manufacturers strengthen the monitoring on the reliability of the elevator band-type brake, monitor the opening and the release of the band-type brake, and also add a function of periodically detecting the braking force of the band-type brake to intervene in advance on possible failure of the band-type brake. In addition, a main engine star sealing protection device is also configured to reliably inhibit the speed of car sliding, and the risk of high-speed car sliding of the elevator caused by failure of the band-type brake is effectively avoided.
But none of the above solutions provides further protection against failure of the internal contracting brake when the elevator is opened horizontally. If the band-type brake fails when the elevator is opened on the flat floor, the sliding speed of the elevator can be maintained at a small value due to the host star-sealing protection device, but the passengers can still be injured due to the condition that the passengers are in and out when the elevator is opened.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a contracting brake failure protection system for an elevator aiming at the defects of the prior art.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a contracting brake failure protection system for an elevator comprises a control main board and a frequency converter;
the control main board comprises a car side CPU, an I/O module, a communication module, a power module, a frequency converter side CPU and a driving module;
a flat layer door opening signal and a band-type brake detection signal are transmitted to a car side CPU through an I/O module;
the car side CPU judges whether the elevator is opened on the flat floor or not and the internal contracting brake is in a failure state according to the flat floor door opening signal and the internal contracting brake detection signal;
if the elevator is opened on a flat floor and the internal contracting brake fails, the CPU on the car side outputs execution information, the execution information is transmitted to the car through the communication module, the car side is controlled to send passenger early warning information, the voice broadcasting device on the top of the car informs passengers to leave the elevator quickly, a control panel on the top of the car outputs signals to close car display and car illumination, a car panel in the car cancels button registration, and meanwhile, the CPU on the frequency converter side transmits a torque maintaining signal to the frequency converter through the driving module;
after receiving the torque maintaining signal, the frequency converter is rectified and inverted to transmit electric energy to the elevator traction machine, so that the traction machine maintains the torque, and the elevator keeps static within a preset time;
the power supply module supplies power to the system.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the system described above further includes an EEPROM memory module,
the EEPROM storage module is used for storing system parameters and data information.
The system further comprises an encoder detection module;
the encoder detection module is used for detecting the state of an encoder on the tractor to realize the monitoring of detecting the running state of the tractor.
The car side CPU adopts STM32F series chips, the communication module adopts SN65HVD series chips, the power module adopts LM1117 series chips, the frequency converter side CPU adopts STM32F series chips, the driving module adopts ACPL series chips, and the encoder detection adopts KLA-MCU series components.
The invention has the following beneficial effects:
1) aiming at the brake failure when the elevator is opened on the flat floor, the system continuously outputs a holding torque for counteracting the vehicle sliding acting force, thereby providing guarantee for the safe evacuation of passengers;
2) by means of voice broadcasting, car closing display, button cancel registration, car closing illumination and the like, passengers can be more intuitively and quickly aware of danger occurrence and withdraw quickly, and personal injury accidents can be effectively avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a flow chart of the operation of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, the contracting brake failure protection system for the elevator comprises a control main board and a frequency converter;
the control main board comprises a car side CPU, an I/O module, a communication module, a power module, a frequency converter side CPU and a driving module;
a flat layer door opening signal and a band-type brake detection signal are transmitted to a car side CPU through an I/O module;
the car side CPU judges whether the elevator is opened on the flat floor or not and the internal contracting brake is in a failure state according to the flat floor door opening signal and the internal contracting brake detection signal;
if the elevator is opened on a flat floor and the internal contracting brake fails, the CPU on the car side outputs execution information, the execution information is transmitted to the car through the communication module, the car side is controlled to send passenger early warning information, the voice broadcasting device on the top of the car informs passengers to leave the elevator quickly, a control panel on the top of the car outputs signals to close car display and car illumination, a car panel in the car cancels button registration, and meanwhile, the CPU on the frequency converter side transmits a torque maintaining signal to the frequency converter through the driving module;
after receiving the torque maintaining signal, the frequency converter is rectified and inverted to transmit electric energy to the elevator traction machine, so that the traction machine maintains the torque, and the elevator keeps static within a preset time; after the elevator is opened according to the preset designed time, the system can execute the elevator stopping operations of closing the door, cancelling the moment and the like, thereby effectively ensuring the safety of the elevator taking personnel.
The power supply module supplies power to the system.
In an embodiment, the system further comprises an EEPROM memory module,
the EEPROM storage module is used for storing system parameters and data information.
In an embodiment, the system further comprises an encoder detection module;
the encoder detection module is used for detecting the state of an encoder on the tractor to realize the monitoring of detecting the running state of the tractor.
In the embodiment, the car side CPU adopts an STM32F series chip, the communication module adopts an SN65HVD series chip, the power module adopts an LM1117 series chip, the frequency converter side CPU adopts an STM32F series chip, the driving module adopts an ACPL series chip, and the encoder detection adopts a KLA-MCU series component.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.

Claims (4)

1. A contracting brake failure protection system for an elevator is characterized by comprising a control mainboard and a frequency converter;
the control main board comprises a car side CPU, an I/O module, a communication module, a power module, a frequency converter side CPU and a driving module;
a flat layer door opening signal and a band-type brake detection signal are transmitted to a car side CPU through an I/O module;
the car side CPU judges whether the elevator is opened on the flat floor or not and the internal contracting brake is in a failure state according to the flat floor door opening signal and the internal contracting brake detection signal;
if the elevator is opened on a flat floor and the internal contracting brake fails, the CPU on the car side outputs execution information, the execution information is transmitted to the car through the communication module, the car side is controlled to send passenger early warning information, the voice broadcasting device on the top of the car informs passengers to leave the elevator quickly, a control panel on the top of the car outputs signals to close car display and car illumination, a car panel in the car cancels button registration, and meanwhile, the CPU on the frequency converter side transmits a torque maintaining signal to the frequency converter through the driving module;
after receiving the torque maintaining signal, the frequency converter is rectified and inverted to transmit electric energy to the elevator traction machine, so that the traction machine maintains the torque, and the elevator keeps static within a preset time;
the power supply module supplies power to the system.
2. The contracting brake failure protection system for the elevator as claimed in claim 1, wherein the system further comprises an EEPROM memory module,
the EEPROM storage module is used for storing system parameters and data information.
3. The contracting brake failure protection system for the elevator according to claim 1, wherein the system further comprises an encoder detection module;
the encoder detection module is used for detecting the state of an encoder on the tractor to realize the monitoring of detecting the running state of the tractor.
4. The contracting brake failure protection system for the elevator as claimed in claim 1, wherein the car side CPU adopts STM32F series chip, the communication module adopts SN65HVD series chip, the power module adopts LM1117 series chip, the frequency converter side CPU adopts STM32F series chip, the driving module adopts ACPL series chip, and the encoder detection adopts KLA-MCU series component.
CN202010341719.7A 2020-04-27 2020-04-27 Band-type brake failure protection system for elevator Pending CN111634781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010341719.7A CN111634781A (en) 2020-04-27 2020-04-27 Band-type brake failure protection system for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010341719.7A CN111634781A (en) 2020-04-27 2020-04-27 Band-type brake failure protection system for elevator

Publications (1)

Publication Number Publication Date
CN111634781A true CN111634781A (en) 2020-09-08

Family

ID=72324720

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010341719.7A Pending CN111634781A (en) 2020-04-27 2020-04-27 Band-type brake failure protection system for elevator

Country Status (1)

Country Link
CN (1) CN111634781A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62205973A (en) * 1986-03-05 1987-09-10 Hitachi Ltd Method and device for controlling operation of elevator
CN1625519A (en) * 2002-11-29 2005-06-08 三菱电机株式会社 Elevator control system
CN101279689A (en) * 2008-05-09 2008-10-08 上海永大电梯设备有限公司 Self-rescue method for elevator free movement
CN102689829A (en) * 2012-05-31 2012-09-26 宁波乐邦电气有限公司 Control method for preventing elevator from uncontrolled movement
CN103508286A (en) * 2012-06-28 2014-01-15 上海三菱电梯有限公司 Elevator safety protection method
CN109650209A (en) * 2019-01-16 2019-04-19 日立电梯(中国)有限公司 Elevator drags lock fault detection system, method, apparatus, equipment and storage medium
CN110065856A (en) * 2019-04-30 2019-07-30 合肥天浦硕能电子科技有限公司 A kind of elevator faults emergency independent control running gear
CN110316633A (en) * 2019-07-12 2019-10-11 深圳市海浦蒙特科技有限公司 It is a kind of to stop the control method and system opened the door for elevator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62205973A (en) * 1986-03-05 1987-09-10 Hitachi Ltd Method and device for controlling operation of elevator
CN1625519A (en) * 2002-11-29 2005-06-08 三菱电机株式会社 Elevator control system
CN101279689A (en) * 2008-05-09 2008-10-08 上海永大电梯设备有限公司 Self-rescue method for elevator free movement
CN102689829A (en) * 2012-05-31 2012-09-26 宁波乐邦电气有限公司 Control method for preventing elevator from uncontrolled movement
CN103508286A (en) * 2012-06-28 2014-01-15 上海三菱电梯有限公司 Elevator safety protection method
CN109650209A (en) * 2019-01-16 2019-04-19 日立电梯(中国)有限公司 Elevator drags lock fault detection system, method, apparatus, equipment and storage medium
CN110065856A (en) * 2019-04-30 2019-07-30 合肥天浦硕能电子科技有限公司 A kind of elevator faults emergency independent control running gear
CN110316633A (en) * 2019-07-12 2019-10-11 深圳市海浦蒙特科技有限公司 It is a kind of to stop the control method and system opened the door for elevator

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