CN113120792A - Protection device for accidental movement of elevator car and control method - Google Patents
Protection device for accidental movement of elevator car and control method Download PDFInfo
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- CN113120792A CN113120792A CN202110292765.7A CN202110292765A CN113120792A CN 113120792 A CN113120792 A CN 113120792A CN 202110292765 A CN202110292765 A CN 202110292765A CN 113120792 A CN113120792 A CN 113120792A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
- B66D5/28—Operating devices pneumatic or hydraulic specially adapted for winding gear, e.g. in mining hoists
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Elevator Control (AREA)
Abstract
The invention relates to the technical field of elevator control, in particular to a protection device for accidental movement of an elevator car and a control method, wherein the device comprises: the device comprises a first brake, a second brake and a brake control module, wherein the first brake and the second brake are connected with the brake control module, the brake control module is used for detecting a brake signal of the first brake, and when the brake signal of the first brake is inconsistent with a preset brake signal, the second brake is controlled to limit the action of the gearless traction machine. The first brake and the second brake are arranged on the gearless traction machine, the brake control module is used for acquiring a first brake signal of the first brake, the acquired first brake signal is compared with a preset brake signal in the preset brake control module, and then the second brake is controlled according to a comparison result to limit the gearless traction machine to act so as to stop the elevator, so that the elevator car is prevented from moving accidentally, and the safety of elevator passengers is ensured.
Description
Technical Field
The invention relates to the technical field of elevator control, in particular to a protection device for accidental movement of an elevator car and a control method.
Background
With the popularization of the elevator in daily life, elevator accidents occur continuously, especially the elevator door opening accidental movement accidents threaten greatly, and huge damage is brought to the life safety of people taking the elevator, such as accidents caused by shearing, which occur all over the country. The source of the accident is mainly caused by the accidental movement of the elevator car. Therefore, finding a feasible and reliable protection device capable of preventing the elevator car from moving accidentally is an urgent problem to be solved in the whole elevator industry.
In the prior art, the used elevator car accidental movement protection device is generally composed of a detection subsystem, a braking and stopping subsystem and a self-monitoring subsystem as shown in fig. 1; wherein the braking subsystem is generally a redundant brake, namely a gearless traction machine brake; the brake is arranged on the gearless traction machine, and the movement control of the elevator car is achieved by using the brake to act; when the elevator car moves accidentally, the brake can not reliably implement braking action or maintain a certain braking torque due to the influence of environmental and equipment factors, so that the elevator car moves accidentally.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a protection device and a control method for preventing an elevator car from moving accidentally, so as to solve the problem of how to prevent the elevator car from moving accidentally.
According to a first aspect, an embodiment of the present invention provides a protection device and a control method for accidental movement of an elevator car, including: the brake control module is used for detecting a brake signal of the first brake, and when the brake signal of the first brake is inconsistent with a preset brake signal, the second brake is controlled to limit the action of the gearless tractor.
According to the protection device for accidental movement of the elevator car, the first brake and the second brake are arranged on the gearless traction machine, the first brake and the second brake are both connected with the brake control module, the brake control module is used for acquiring the first brake signal of the first brake, the acquired first brake signal is compared with the preset brake signal preset in the brake control module, and if the first brake signal and the second brake signal are inconsistent, the brake control module controls the second brake to limit the gearless traction machine to act according to the comparison result so as to stop the elevator, so that the accidental movement of the elevator car is prevented, and the safety of people taking the elevator is guaranteed.
With reference to the first aspect, in a first embodiment of the first aspect, the first brake includes: two first brakes oppositely arranged on the gearless traction machine.
The protection device for accidental movement of the elevator car provided by the embodiment is characterized in that the two first brakes are oppositely arranged so as to ensure accurate braking of the elevator, and in addition, the elevator car can be further prevented from accidental movement through the braking signals of the first brakes, so that the safety of people taking the elevator is ensured.
With reference to the first aspect, in a second embodiment of the first aspect, the second brake includes: at least one safety brake is provided on the gearless traction machine.
The protection device for accidental movement of the elevator car provided by the embodiment is provided with at least one safety brake on the gearless traction machine, so that the accidental movement of the elevator car is effectively prevented, and the safety of elevator passengers is ensured.
With reference to the second embodiment of the first aspect, in a third embodiment of the first aspect, the safety brake includes: any one of a mechanical brake, a hydraulic brake, a pneumatic brake, and an electromagnetic brake, or a plurality of types of brakes.
The protection device for the accidental movement of the elevator car provided by the embodiment can reduce the possibility of the accidental movement of the elevator car by using different brakes or brakes in different combination forms, further prevent the accidental movement of the elevator car and ensure the safety of elevator passengers.
With reference to the first aspect, in a fourth implementation manner of the first aspect, the safety control module includes: the comparator is respectively connected with the brake and the safety control module which are arranged on the gearless traction machine, and is used for comparing the brake action signals to obtain comparison signals and sending the comparison signals to the safety control module to determine the safety control signals.
The protection device for accidental movement of the elevator car provided by the embodiment utilizes the comparator to obtain the brake signal of the first brake, compares the brake signal of the first brake with the preset brake signal value to obtain the comparison signal, uses the comparison signal for judging whether the situation that the elevator car accidentally moves exists in the current elevator or not, and controls the second brake according to the comparison signal if the situation exists, so that the elevator running is braked and stopped, and the accidental movement of the elevator car is effectively avoided.
With reference to the first aspect, in a fifth embodiment of the first aspect, the brake control module includes: the brake system comprises a first control module and a second control module, wherein the first control module is respectively connected with a first brake and the second control module, and is used for acquiring a first brake signal of the first brake and sending the first brake signal to the second control module; the second control module is respectively connected with the first control module and the second brake, and the second control module is used for receiving a first brake signal sent by the first control module and controlling the second brake to limit the action of the gearless traction machine according to the first brake signal.
The protection device that elevator car accident removed that this embodiment provided is through dividing into first control module and second control module with braking control module to realized forming the device of one set of independent adjustment with second stopper and second control module, thereby prevented because of using common control module, when control module has the error or damages, can't solve elevator car accident and remove.
With reference to the first aspect or the sixth embodiment of the first aspect, in the sixth embodiment of the first aspect, the method further includes: a brake control module disposed within the elevator control system, or a brake control module separately mounted within the elevator control cabinet.
The protection device for the accidental movement of the elevator car provided by the embodiment has the advantages that the brake control module is arranged in the elevator control system or is separately installed, so that the brake control module is more flexible.
With reference to the first aspect, in a seventh implementation manner of the first aspect, the method further includes: and the delayer is connected with the second brake and used for adjusting the delay time of the second brake.
The protection device for the accidental movement of the elevator car provided by the embodiment controls the braking time of the second brake by using the delayer, so that the accidental movement of the elevator car is effectively avoided.
With reference to the first aspect, in an eighth implementation manner of the first aspect, the power supply module is connected to the first brake, the second brake, and the brake control module, and the power supply module is configured to provide electric energy to the first brake, the second brake, and the brake control module.
The protection device for accidental movement of the elevator car provided by the embodiment uses the power supply module to ensure normal power supply of the device, further ensures normal operation of the device and avoids accidental movement of the elevator car.
According to a second aspect, an embodiment of the present invention provides a method for controlling an accidental movement of an elevator car, where the method employs the protection device for an accidental movement of an elevator car according to any one of the above first aspect and the first aspect, and the method for controlling the protection device comprises: when the elevator runs, obtaining elevator running state information, wherein the obtaining of the elevator running state information comprises: acquiring state information of a first brake on the gearless traction machine; sending the state information and preset state information into a comparator for comparison, and outputting the elevator running state information; judging whether the elevator running state information meets preset running conditions or not; if the elevator running state information meets the preset running condition, judging the next elevator running state information; and if the elevator running state information does not meet the preset running condition, starting a second brake to stop the elevator. And if the elevator running state information meets the condition that the elevator car moves accidentally, starting a safety brake to stop the elevator from running.
The protection device for accidental movement of the elevator car provided by the embodiment determines whether the situation that the elevator car accidentally moves exists in the running elevator or not by judging whether the running state information of the elevator meets the preset running condition or not, and executes corresponding elevator braking operation to prevent the elevator car from accidentally moving or continuously moving, so that the safety of people taking the elevator is ensured.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 shows a schematic view of a prior art arrangement for preventing accidental movement of an elevator car;
fig. 2 is a schematic structural diagram of a protection device for accidental movement of an elevator car according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for controlling an unexpected movement of an elevator car according to an embodiment of the present invention;
reference numerals
1-an elevator control system; 2-gearless traction machine brake; 3-gearless traction machine; 4-a first brake; 5-a second brake; 6-a brake control module;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, the technical features related to the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In addition, the protection device for accidental movement of an elevator car used in the prior art specifically includes: the elevator car monitoring system comprises a detection subsystem, a braking subsystem and a self-monitoring subsystem, wherein a device for preventing the elevator car from moving accidentally is arranged in the braking subsystem; as shown in fig. 1, in a normal situation, the device for preventing the elevator car from moving accidentally comprises a gearless traction machine 1 and a gearless traction machine brake 2, wherein the gearless traction machine brake is arranged on the gearless traction machine in the braking process, and the car door is opened by using an elevator control system to send a door opening command to start the car accidental movement protection device according to the stop of the elevator, or the car door is closed by using a door closing command sent by the elevator control system to reset the car accidental movement protection device, so that the car continues to run until the car stops again, thereby achieving the purpose of preventing the car from moving accidentally. However, in the prior art, the conventional elevator car accidental movement protection device only depends on the action of the gearless traction machine brake 2 when the gearless traction machine brake is normally stopped or keeps a certain braking torque to prevent the car from accidental movement, but when the gearless traction machine brake 2 cannot be normally stopped or normally acts or cannot keep a certain braking torque, the possibility of accidental movement of the elevator car still occurs.
Therefore, in order to solve the problem that the gearless traction machine brake 2 cannot reliably act or keep the brake torque insufficient, and effectively avoid the occurrence of accidental movement of the elevator car, the embodiment provides the protection device for accidental movement of the elevator car.
Specifically, the present embodiment provides a protection device for accidental movement of an elevator car, as shown in fig. 2, including: the brake control module 6 is used for detecting a brake signal of the first brake 4, and when the brake signal of the first brake 4 is inconsistent with a preset brake signal, the second brake 5 is controlled to limit the action of the gearless traction machine.
The embodiment provides a protection device for accidental movement of an elevator car, a first brake 4 and a second brake 5 are arranged on a gearless traction machine, wherein the first brake 4 and the second brake 5 are both connected with a brake control module 6, a first brake signal of the first brake 4 is obtained by the brake control module 6, the obtained first brake signal is compared with a preset brake signal preset in the brake control module 6, and if the brake control module 6 does not accord with the two signals, the second brake 5 is controlled according to the comparison result to limit the gearless traction machine to move so as to stop the elevator, so that the accidental movement of the elevator car is prevented, and the safety of elevator passengers is ensured.
Alternatively, the first brake 4 may include: two first brakes 4 provided oppositely on the gearless traction machine. In this embodiment, the first brake 4 is relatively disposed on the gearless traction machine, wherein the brake is a gearless traction machine brake, and the gearless traction machine brakes are relatively disposed or symmetrically disposed, so as to ensure uniform braking of the gearless traction machine, further ensure stability of elevator braking, prevent the elevator from shaking during the action of the gearless traction machine due to uneven disposition of the gearless traction machine brakes, and further ensure stable operation of the elevator.
Alternatively, the second brake 5 may include: at least one safety brake is provided on the gearless traction machine. In this embodiment, at least one safety brake is arranged on the gearless traction machine, multiple detection and multiple standby brakes are realized by utilizing the multiple safety brakes, and when the existing brake cannot work normally, the safety brake arranged on the gearless traction machine can directly act to brake the elevator car when the elevator car moves accidentally, so that the elevator car is effectively prevented from moving accidentally.
Optionally, the safety brake may further include: any one of a mechanical brake, a hydraulic brake, a pneumatic brake, and an electromagnetic brake, or a plurality of types of brakes. In the embodiment, the possibility of accidental movement of the elevator car can be reduced by using different brakes or brakes in different combination forms, the accidental movement of the elevator car is further prevented, and the safety of elevator passengers is ensured.
Alternatively, the brake control module 6 may include: the brake system comprises a first control module and a second control module, wherein the first control module is respectively connected with a first brake 4 and the second control module, and is used for acquiring a first brake signal of the first brake 4 and sending the first brake signal to the second control module; the second control module is respectively connected with the first control module and the second brake 5, and the second control module is used for receiving the first brake signal sent by the first control module and controlling the second brake 5 to limit the action of the gearless traction machine according to the first brake signal.
Optionally, the braking control module 6 may be further connected to an elevator control system, and the braking control module is connected to the elevator control system to obtain a control state of the elevator control system and determine whether the braking control module needs to be started, so that reliable braking is achieved, and safety of the elevator during operation is ensured.
In this embodiment, the first control module is connected to the first brake 4, the first brake 4 can be 2 pairs of brakes which are relatively disposed on the gearless traction machine and brake the gearless traction machine according to the control of the first control module, and the first control module can also be connected to the elevator control module, the elevator control module sends a control command to control the first control module, and the first control module receives the control command and controls the first brake 4 according to the control command to implement the braking operation of the first brake 4. The second control module is respectively connected with the first control module and the second brake 5 to be connected, the braking condition of the first brake 4 is obtained by connecting the first control module, if the braking condition of the first brake 4 and the abnormal condition exist, the second brake 5 can be controlled by the started second control module, the problem that the elevator car moves accidentally is solved, and the safety of people taking the elevator is further ensured.
Optionally, the second control module can be also independently connected with the first brake 4 to directly collect the braking information of the first brake 4, and if the braking information of the first brake 4 is abnormal, the second control module can directly control the second braking action, so that the problem that the elevator car moves accidentally is solved, and the safety of the elevator riding people is further ensured.
Optionally, the present embodiment further includes a comparator, where the comparator is connected to the first brake 4 and the brake control module 6 respectively, and the comparator is configured to compare an action signal of the first brake 4 with a preset action signal in the brake control module 6 to obtain a comparison signal, and control the action of the second brake 5 based on the comparison signal.
In this embodiment, the elevator control module sends control signals such as running, leveling, door opening and the like to the brake control unit, the brake control module 6 receives the control signals sent by the control unit, and starts normally according to a specified program, wherein the second brake 5 is firstly opened, then the first brake 4 is opened, the first brake 4 brakes the elevator car firstly during normal operation, and when the brake control module 6 detects that the elevator car moves unexpectedly, the second brake 5 brakes immediately. Optionally, in a normal condition, after the first brake 4 brakes, the second brake 5 can brake by setting a time delay device, so that the smooth braking of the elevator car is ensured.
The protection device that elevator car accident that this embodiment provided can include in addition first stopper, second stopper and braking control module:
the comparator is respectively connected with the first brake and the brake control module which are arranged on the gearless traction machine, and the comparator is used for comparing the action signal of the first brake with a preset action signal in the brake control module to obtain a comparison signal and controlling the action of the second brake based on the comparison signal. In this embodiment, the comparator may be a logic device, which compares the collected action signal of the first brake with a preset action signal to determine the current elevator operation state, for example: elevator control module sends start signal to braking control module, first stopper starts, carry out the flat bed and remove, reach behind the expected position, the elevator car door is opened, braking control module acquires the brake signal of first stopper this moment, judge this brake signal state, determine whether there is unexpected removal in elevator car, if the elevator does not have outer removal, then the inoperative or keep the open mode of second stopper, the state of the first stopper of braking control module real time monitoring simultaneously, elevator car is according to the regulation normal operating, if the unexpected removal of elevator, its second stopper can be moved or the second stopper is switched into the closed condition by original open mode, the elevator stops the operation immediately, thereby guarantee elevator car's steady braking, and prevent effectively that elevator car from producing the safety that unexpected removal threatened taking advantage of elevator people.
Optionally, the comparator may also be a comparison circuit preset in the brake control module, and the comparison is performed by acquiring the action signal of the first brake and the preset action signal stored in the brake control module, and then according to the comparison result, the brake control module controls the second brake to perform elevator braking when the elevator car moves unexpectedly.
Optionally, the preset action signal may be: the on-off signal of the landing door lock, the on-off signal of the car door lock, the motion state signal of the elevator car and the like. Whether unexpected movement is generated in the running elevator or not is determined by comparing the on-off of the preset action signal with the action signal of the first brake.
And the delayer is connected with the second brake and is used for adjusting the delay time of the second brake. In this embodiment, in order to reduce the frequency of the safety brake participating in braking to the maximum extent, so as to reduce the action loss of the safety brake to the maximum extent, a time delay device is arranged to be connected with the safety brake, so that the delayed braking time of the safety brake is adjustable, and the time duration can be set, for example: one hour. When the elevator normally operates every day, the number of times of the safety brake participating in braking is up to twenty times, thereby reducing the action loss of the safety brake.
And the power supply module is respectively connected with the first brake, the second brake and the brake control module and is used for supplying electric energy to the first brake, the second brake and the brake control module. In this embodiment, the normal power supply of the device is ensured by using the power supply module, so that the normal operation of the device is further ensured and the accidental movement of the elevator car is avoided.
In the embodiment, when the elevator normally performs operation actions (such as operation, leveling and door opening), the comparator monitors the landing door lock on-off signal, the car door lock on-off signal and the elevator car operation state signal in real time, when the landing door lock is disconnected or the car door lock is disconnected or the landing car door lock is simultaneously disconnected, and simultaneously the elevator car moves, the brake control module controls the second brake to be immediately closed, so that the elevator stops operating, the elevator car is prevented from moving accidentally, and the safety of elevator passengers is ensured.
The protection device for the accidental movement of the elevator car provided by the embodiment of the invention can prevent the accidental movement of the elevator car through the second brake and the brake control module when the working brake of the gearless traction machine completely fails. The mode has the advantages of simple structure, strong practicability and enhanced safety and reliability during the operation of the elevator.
Optionally, the brake control module may further include: a brake control module disposed within the elevator control system, or a brake control module separately mounted within the elevator control cabinet.
In this embodiment, the brake control module may be an integrated module, and is disposed in the elevator control system, or may be composed of a plurality of independent components and installed in the elevator control cabinet. So that the brake control module can be compatible with various application scenes.
The method for controlling the accidental movement of the elevator car provided by the embodiment is as shown in fig. 3, and comprises the following steps:
and S10, acquiring the elevator running state information when the elevator runs.
In this embodiment, when the elevator runs, the brake control module acquires the action information of the first brake arranged on the gearless traction machine in the elevator control system in real time, wherein the action information of the first brake may be on/off of an electromagnetic signal or on/off of an electric signal, and the on/off signal or a high/low level signal is acquired by the brake control module in real time.
And S11, judging whether the elevator running state information meets the preset running condition.
In this embodiment, the preset operation condition includes a landing door lock on-off signal, a car door lock on-off signal, an elevator car operation state signal, and the like. For example: and only when the door lock on-off signal of the landing door, the door lock on-off signal of the car door and the running state signal of the elevator car are all high level, the normal running of the elevator is indicated, and the elevator does not move outwards.
And S12, if the elevator running state information meets the preset running condition, judging the next elevator running state information.
And S13, if the elevator running state information does not meet the preset running condition, starting a second brake to stop the elevator.
Optionally, step S10 may further include:
s101, acquiring state information of a first brake on the gearless traction machine;
in this embodiment, the status information of the first brake may be an on-off signal of the first brake, which is collected by the brake control module.
And S102, sending the state information and the preset state information into a comparator for comparison, and outputting the elevator running state information.
In this embodiment, the brake control module sends the acquired state information of the first brake to the comparator, the comparator can extract preset state information from the brake control module, and also can extract preset state information from prestored information of the comparator, and perform logic judgment, so as to determine whether the current elevator running state needs to be the situation that the elevator moves accidentally, and if so, the elevator is stopped.
According to the control method for the accidental movement of the elevator car, whether the situation that the elevator car accidentally moves exists in the running elevator or not is determined by judging whether the running state information of the elevator meets the preset running condition or not, and the corresponding braking operation of the elevator is executed to prevent the elevator car from accidentally moving or continuously moving, so that the safety of people taking the elevator is guaranteed.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. An accidental movement protection device for an elevator car, comprising: the brake control module is used for detecting a brake signal of the first brake, and when the brake signal of the first brake is inconsistent with a preset brake signal, the second brake is controlled to limit the action of the gearless tractor.
2. The protective device of claim 1, wherein the first brake comprises: two first brakes oppositely arranged on the gearless traction machine.
3. The protective device of claim 1, wherein the second brake comprises: at least one safety brake is provided on the gearless traction machine.
4. The protection device of claim 2, wherein the safety brake comprises: any one of a mechanical brake, a hydraulic brake, a pneumatic brake, and an electromagnetic brake, or a plurality of types of brakes.
5. The protection device according to claim 1, comprising: the comparator is respectively connected with a first brake and a brake control module which are arranged on the gearless traction machine, and is used for comparing the action signal of the first brake with a preset action signal in the brake control module to obtain a comparison signal and controlling the action of the second brake based on the comparison signal.
6. The protection device of claim 1, wherein the brake control module comprises: the brake system comprises a first control module and a second control module, wherein the first control module is respectively connected with a first brake and the second control module, and is used for acquiring a first brake signal of the first brake and sending the first brake signal to the second control module; the second control module is respectively connected with the first control module and the second brake, and the second control module is used for receiving a first brake signal sent by the first control module and controlling the second brake to limit the action of the gearless traction machine according to the first brake signal.
7. The protection device according to claim 1 or 6, further comprising: a brake control module disposed within the elevator control system, or a brake control module separately mounted within the elevator control cabinet.
8. The protection device according to claim 1 or 2, further comprising: and the delayer is connected with the second brake and used for adjusting the delay time of the second brake.
9. The protection device according to claim 1, comprising: and the power supply module is respectively connected with the first brake, the second brake and the brake control module, and is used for providing electric energy for the first brake, the second brake and the brake control module.
10. A method for controlling an accidental movement of an elevator car, which comprises the steps of:
when the elevator runs, obtaining elevator running state information, wherein the obtaining of the elevator running state information comprises: acquiring state information of a first brake on the gearless traction machine; sending the state information and preset state information into a comparator for comparison, and outputting the elevator running state information;
judging whether the elevator running state information meets preset running conditions or not;
if the elevator running state information meets the preset running condition, judging the next elevator running state information;
and if the elevator running state information does not meet the preset running condition, starting a second brake to stop the elevator.
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| CN202110292765.7A CN113120792A (en) | 2021-03-18 | 2021-03-18 | Protection device for accidental movement of elevator car and control method |
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| CN202110292765.7A CN113120792A (en) | 2021-03-18 | 2021-03-18 | Protection device for accidental movement of elevator car and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4397612A1 (en) * | 2023-01-03 | 2024-07-10 | Otis Elevator Company | Device and method for implementing an elevator safety function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080185231A1 (en) * | 2005-08-19 | 2008-08-07 | Kone Corporation | Elevator system |
| US20110132696A1 (en) * | 2008-08-18 | 2011-06-09 | Andreas Dorsch | Method for monitoring a brake system in an elevator system and corresponding brake monitor for an elevator system |
| US20150047426A1 (en) * | 2012-02-20 | 2015-02-19 | Konecranes Plc | Monitoring of brake |
| US20150129365A1 (en) * | 2012-08-24 | 2015-05-14 | Kone Corporation | Brake |
| TW201613818A (en) * | 2014-10-01 | 2016-04-16 | Li Aye Electric Co Ltd | Test method for braking system of elevator |
| CN107628497A (en) * | 2017-08-18 | 2018-01-26 | 广东卓梅尼技术股份有限公司 | A kind of elevator device of dynamic detection brake sticking brake torque |
-
2021
- 2021-03-18 CN CN202110292765.7A patent/CN113120792A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080185231A1 (en) * | 2005-08-19 | 2008-08-07 | Kone Corporation | Elevator system |
| US20110132696A1 (en) * | 2008-08-18 | 2011-06-09 | Andreas Dorsch | Method for monitoring a brake system in an elevator system and corresponding brake monitor for an elevator system |
| US20150047426A1 (en) * | 2012-02-20 | 2015-02-19 | Konecranes Plc | Monitoring of brake |
| US20150129365A1 (en) * | 2012-08-24 | 2015-05-14 | Kone Corporation | Brake |
| TW201613818A (en) * | 2014-10-01 | 2016-04-16 | Li Aye Electric Co Ltd | Test method for braking system of elevator |
| CN107628497A (en) * | 2017-08-18 | 2018-01-26 | 广东卓梅尼技术股份有限公司 | A kind of elevator device of dynamic detection brake sticking brake torque |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4397612A1 (en) * | 2023-01-03 | 2024-07-10 | Otis Elevator Company | Device and method for implementing an elevator safety function |
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