CN114148854A

CN114148854A - Elevator brake detection method and system

Info

Publication number: CN114148854A
Application number: CN202111494424.4A
Authority: CN
Inventors: 胡骥; 曹庭文; 冯增明; 潘道祥
Original assignee: Wuhan Jieneng Automation Technology Co ltd
Current assignee: Wuhan Jieneng Automation Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-03-08
Anticipated expiration: 2041-12-08
Also published as: CN114148854B

Abstract

The invention relates to the technical field of elevators, in particular to an elevator brake detection method and system, which comprises the following steps: step 1: obtaining an elevator maintenance record file, extracting the content of the related record file of the elevator brake, and capturing the running state of the elevator; step 2: analyzing the low frequency period of the elevator, planning the band-type brake detection period, capturing the internal condition of the car before detection, and executing after confirming that no person exists; step 3: analyzing the real-time state of the contact of the elevator brake contactor, and judging the functionality of the contact of the brake contactor; step 4: the normally open contact is in a closed state, an elevator safety loop is disconnected, a fault lamp shines to emit red light, and the fault lamp is removed when power is supplied after the fault is eliminated; the invention provides a performance detection method for an elevator brake, which can comprehensively detect whether the elevator brake has potential safety hazards, synchronously maintain components with the potential safety hazards, and meanwhile, can retain data aiming at the detected potential safety hazards so as to provide subsequent brake detection as reference.

Description

Elevator brake detection method and system

Technical Field

The invention relates to the technical field of elevators, in particular to an elevator brake detection method and system.

Background

A band-type brake is an electromechanical device that prevents the elevator from moving again when the elevator car is stationary and the motor is in a power-off state. In some control modes, the elevator is braked when the motor is powered off, and the control mode of the elevator is that a band-type brake is loosened when the motor is powered on and is tightly held when the motor is powered off.

Therefore, the band-type brake plays a vital role and safety guarantee in the safe operation process of the elevator, but the detection of the band-type brake in the elevator industry at present is generally maintained through the manual mode periodic system to guarantee, so that the functional soundness of the band-type brake is determined, the manual maintenance detection is easy to be neglected, the high-frequency band-type brake detection is difficult to realize, certain labor force is consumed, the maintenance detection work effect of the elevator band-type brake is poor, and the safety space used by the elevator is still to be improved.

Disclosure of Invention

Solves the technical problem

Aiming at the defects in the prior art, the invention provides a method and a system for detecting an elevator brake, which solve the problems that the detection of the brake in the elevator industry is carried out by maintaining the guarantee periodically in a manual mode, so as to determine the functional soundness of the brake, but the manual maintenance detection is easy to be neglected, the high-frequency brake detection is difficult to realize, certain labor force is consumed, the working effect of the maintenance detection of the elevator brake is poor, and the coverage of the safety space used by the elevator is not tight enough.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

in a first aspect, an elevator brake detection method comprises the following steps:

step 1: obtaining an elevator maintenance record file, extracting the content of the related record file of the elevator brake, and capturing the running state of the elevator;

step 2: analyzing the low frequency period of the elevator, planning the band-type brake detection period, capturing the internal condition of the car before detection, and executing after confirming that no person exists;

step 3: analyzing the real-time state of the contact of the elevator brake contactor, and judging the functionality of the contact of the brake contactor;

step 4: the normally open contact is in a closed state, an elevator safety loop is disconnected, a fault lamp shines to emit red light, and the fault lamp is removed when power is supplied after the fault is eliminated;

step 41: the normally open contact is in an open state, and the next detection is carried out;

step 5: the band-type brake can not be opened and closed, the safety loop of the elevator is disconnected, the fault lamp shines to emit red light, and the fault lamp is removed when power is supplied after the fault is eliminated;

step 51: the opening and closing functions of the band-type brake are normal, and the next detection is carried out;

step 6: detecting the circuit condition of a band-type brake operation circuit element, disconnecting an elevator safety loop when an abnormal element is more than or equal to 1, carrying out replacement and maintenance on the abnormal element for retesting, and removing the abnormal element when power is transmitted after the fault is confirmed;

step 61: the connection of elements in the band-type brake circuit is not abnormal, and the next detection is carried out;

step 7: and generating a band-type brake maintenance record file, and storing the generated band-type brake maintenance record file into a folder under a root directory table of the elevator maintenance record file for storage.

Further, the Step1 includes the following sub-steps:

step 11: obtaining the weather of an elevator use area, and analyzing the air humidity and the precipitation according to the weather of the elevator use area;

step 12: designing a shaft humidity detection plan and a shaft bottom observation plan;

step 13: plan execution, generating report files and feeding back upwards.

Further, in Step12, a well bottom observation plan is executed in priority to a well humidity detection plan, wherein the well humidity detection plan is used in a state that the precipitation is less than or equal to 1mm/h, and the well bottom observation plan is used in a state that the precipitation is more than or equal to 1 mm/h.

Further, the steps of Step41, Step51 and Step61 do not set the priority execution queue for random execution.

Further, the Step7 is transmitted by a medium transmission mode, the transmission target is the elevator maintenance record file in the Step1, and the content of the elevator brake maintenance related record file before the current elevator brake maintenance is started is the content transmitted to the elevator maintenance record file in the previous Step 7.

In a second aspect, an elevator brake detection system includes:

the control terminal is a main control end of the system and is used for controlling an auxiliary module below the control terminal in the system;

the setting module is used for setting a detection period for detecting the band-type brake by the self-running of the detection system;

the monitoring module is used for monitoring and recording load data and use frequency of the elevator running in each detection period;

an analysis module for analyzing real-time performance of components of the elevator;

the prediction module is used for predicting components which are possibly failed in the elevator brake and naming the components as risk components;

the feedback module is used for packaging the result predicted by the prediction module and transmitting the result to the control terminal;

the braking module is used for stopping the elevator running;

and the configuration module is used for configuring the delay starting time of the rear setting control end and the rear setting control end of the braking module under the synchronous control of the control terminal and the feedback module.

Furthermore, the analysis module performs data transmission by electrically connecting the analysis module with the monitoring module, and obtains the basis for analysis from the monitoring module.

Furthermore, the prediction module and the analysis module are electrically connected to the circuit board to obtain an analysis result of the analysis module, the performance of each component related to the band-type brake is extracted from the analysis result, and the component distribution label with the decreased performance is selected as the predicted risk component in the prediction module.

Furthermore, the monitoring module is provided with a monitoring module for monitoring real-time network signals in the well, forming a recording data packing file to establish connection in a mode of electrically connecting the recording data packing file with the prediction module, and transmitting the recording data packing file to the prediction module.

Furthermore, the braking module is connected with the monitoring module through a wireless network, when the monitoring module monitors that the interior of the car has vital signs, the starting condition of the braking module is the end of the car running task, wherein the braking module is set by the system and is started in a mode of triggering by the feedback module or directly controlled by the control terminal or the starting modes are compatible.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

1. the invention provides a performance detection method for an elevator brake, which can comprehensively detect whether the elevator brake has potential safety hazards, synchronously maintain components with the potential safety hazards, and meanwhile, can retain data aiming at the detected potential safety hazards so as to provide subsequent brake detection as reference.

2. The invention synchronously provides a detection system for the detection method of the elevator brake, the system can effectively control the implementation of the detection method, the probability of elevator faults is avoided to a certain extent through the added modules, and meanwhile, the processing process of the system is more intelligent.

3. According to the invention, the module for network detection is added in the detection system, and network signals in the elevator shaft can be ensured as much as possible through the module, so that even if the elevator breaks down, trapped people can call for help through communication equipment in time, and serious casualty accidents are prevented.

Drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic flow chart of an elevator brake detection method;

fig. 2 is a schematic structural diagram of an elevator brake detection system;

FIG. 3 is a schematic circuit diagram of a band-type brake detection system according to the present invention;

FIG. 4 is a circuit board of the brake detection system according to the present invention;

FIG. 5 is a schematic circuit board wiring diagram of the band-type brake detection system according to the present invention;

the reference numerals in the drawings denote: 1. a control terminal; 2. a setting module; 3. a monitoring module; 31. a monitoring module; 4. an analysis module; 5. a prediction module; 6. a feedback module; 7. a brake module; 8. and configuring the module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. 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.

The present invention will be further described with reference to the following examples.

Example 1

The method for detecting the elevator brake of the embodiment, as shown in fig. 1, includes the following steps:

As shown in fig. 1, Step1 includes the following sub-steps:

step 13: plan execution, generating report files and feeding back upwards.

As shown in FIG. 1, in Step12, a bottom hole observation plan is executed in preference to a shaft humidity detection plan, wherein the shaft humidity detection plan is used in a state that the precipitation is less than or equal to 1mm/h, and the bottom hole observation plan is used in a state that the precipitation is more than or equal to 1 mm/h.

By the arrangement, the method can rapidly acquire the real-time condition of the shaft bottom of the well, and further judge whether the elevator brake needs to be detected or not.

As shown in FIG. 1, steps 41, Step51, and Step61 do not set the priority execution queue for random execution.

The flexibility of the method in the use process is improved through the arrangement.

As shown in fig. 1, Step7 is transmitted by a medium transmission mode, the transmission target is the elevator maintenance record file in Step1, and the content of the elevator band-type brake maintenance related record file before the current elevator band-type brake maintenance is started is the content transmitted to the elevator maintenance record file in the previous Step 7.

Through this setting, for the elevator band-type brake dimension guarantor detects provide accurate reference basis, effectual messenger is according to having corresponding to the detection of the components and parts of elevator band-type brake when detecting the elevator band-type brake to elevator band-type brake dimension guarantor's efficiency that detects has been promoted.

Example 2

An elevator brake detection system, as shown in fig. 2, comprises:

the control terminal 1 is a main control end of the system and is used for controlling an auxiliary module below the control terminal 1 in the system;

the setting module 2 is used for setting a detection period for detecting the band-type brake by the self-operation of the detection system;

the monitoring module 3 is used for monitoring and recording load data and use frequency of the elevator running in each detection period;

an analysis module 4 for analyzing the real-time performance of the components of the elevator;

the prediction module 5 is used for predicting components which are possibly failed in the elevator brake and naming the components as risk components;

the feedback module 6 is used for packaging the result predicted by the prediction module 5 and transmitting the result to the control terminal 1;

the brake module 7 is used for stopping the elevator running;

and the configuration module 8 is used for configuring the delay starting time of the post-setting control end and the post-setting control end of the braking module 7 under the synchronous control of the control terminal 1 and the feedback module 6.

When the device is used in the implementation, the control terminal 1 controls the setting module 2 to set a detection period for detecting the brake by the self-running of the detection system, the monitoring module 3 synchronously monitors and records load data and use frequency of the running of the elevator in each detection period, the analysis module 4 analyzes the real-time performance of an elevator element according to the data content collected by the monitoring module 3, and the prediction module 5 further predicts an element which is possibly failed in the brake of the elevator according to a target analyzed by the analysis module 4 and names the element as a risk element;

and finally, a feedback module 6 is used for feeding back the target fault component predicted by the prediction module 5 to the control terminal 1, at the moment, the prediction module 5 triggers or directly controls the operation braking module 7 of the control terminal 1 to stop the elevator, and the configuration module 8 configures the delay starting time of the braking module 7 at the post-setting control end and the post-setting control end under the synchronous control of the control terminal 1 and the feedback module 6.

As shown in fig. 2, the analysis module 4 performs data transmission by electrically connecting to the monitoring module 3, and obtains the basis for analysis from the monitoring module 3.

As shown in fig. 2, the prediction module 5 and the analysis module 4 are electrically connected to the circuit board to obtain an analysis result of the analysis module 4, extract the performance of each component related to the band-type brake from the analysis result, and select the component label with decreasing performance as the risk component predicted in the prediction module 5.

As shown in fig. 2, the monitoring module 3 is provided with a monitoring module 31 for monitoring a real-time network signal in the hoistway, forming a recording data package file to establish connection in a manner of electrically connecting with the prediction module 5, and transmitting the recording data package file to the prediction module 5.

The setting through monitoring module 31 can carry out real-time signal to the network in the elevator well and catch, judges whether unobstructed in the elevator well network to when the elevator takes place the accident, the inside stranded personnel of elevator car lose the antithetical couplet with the external world.

As shown in fig. 2, the braking module 7 is connected with the monitoring module 3 through a wireless network, when the monitoring module 3 monitors vital signs inside the car, the starting condition of the braking module 7 is the ending of the current running task of the car, wherein the braking module 7 is set by a system and is started in a manner of triggering by a feedback module or directly controlled by the control terminal 1 or started in a manner compatible with the two starting manners.

Example 3

As shown in fig. 3, 4 and 5, after the elevator is electrified, L1 and L2 are electrified and rectified into direct current 24V by a rectifier bridge ZLQ; when the power is on, the capacitor C3 is charged through the relay AQJ3, the resistor R4 and the light emitting diode d4, and the capacitor C3 is fully charged in about 2 seconds; the relay AQJ3 is attracted in the charging process of the C3. In the process of attracting the relay AQJ3, the normally closed contacts (3 and 2) of the BCJ, the normally closed contact of the BCC, the closed contact of the detection switch K1, the closed contact of the detection switch K2, the normally closed contacts (7 and 6) of the BCJ, the closed contacts (3 and 4) of the AQJ3, the normally closed contact (11 and 12) of the AQJ2 and the normally closed contact (11 and 12) of the AQJ1 are respectively used for supplying power to AQJ1 and AQJ2, the AQJ1 and AQJ2 attract the normally open contacts (33 and 34) are self-locked, and the AQ1 and the AQ2 are switched on through the contacts (43 and 44) of the AQJ1 and the contacts (43 and 44) of the AQJ 2; resistors R1, d1, R2, d2, R3, d3, R4 and d4 in the circuit play a display role, and the relay is required to emit light when electrified;

when the elevator operates the contracting brake contactor, the contracting brake is switched on: firstly, BCJ is attracted, the contacts (2, 3) and (6, 7) are disconnected, the contacts (3, 4) and (5, 6) are conducted, then the brake detection switch acts, the originally closed contact is disconnected, the originally opened contact is closed, and the attraction of AQJ1 and AQJ2 is maintained; if the BCJ cannot be normally attracted or the band-type brake cannot be opened and the detection switch does not act AQJ1 or AQJ2 to lose the discharge, the contacts (43 and 44) are disconnected and the elevator safety loop is disconnected;

when the elevator stops: if the BCC adhesion contact of the operating contactor is not closed or the BCJ adhesion relay is adhered or the contracting brake is not closed, the detection switch is not reset, the front-end circuits AQJ1 and AQJ2 are disconnected, and AQJ1 and AQJ2 are subjected to discharge loss;

when AQJ1 and AQJ2 are not released, even the detection switches and the like are recovered to be normal, the elevator can be recovered to be normal only when the capacitor C3 is released due to power failure and then the power is transmitted to charge the capacitor C3 so that the electrical relay BCJ acts for 1 time;

the contracting brake detection board comprises the following wiring steps:

s1: respectively connecting L1 and L2 in parallel with a 24V power supply of the elevator;

s2: a1 and A2 are connected with the coil of the band-type brake contactor in parallel, and the applicable voltage is AC 85-264V, DC 100-375V;

s3: concatenating AQ1 and AQ2 to an elevator door lock loop or safety loop;

s4: connecting BC1 and BK1 with 1 group of normally closed contacts (passive) of the brake contactor;

s5: the BK1 is connected to the closing contact of the detection switch 1 when the band-type brake is closed, the BK5 is connected to the opening contact of the detection switch 1 when the band-type brake is closed, the common contact of the detection switch 1 is connected to the common contact of the detection switch 2 when the band-type brake is closed, the BK2 is connected to the closing contact of the detection switch 2 when the band-type brake is closed, and the BK6 is connected to the opening contact of the detection switch 2 when the band-type brake is closed.

Note: for the wire connection demonstration, referring to fig. 4 and 5, the bottom circular holes in fig. 4 sequentially correspond to the labeled wire connection ports from left to right in fig. 5.

In summary, the invention provides a performance detection method for an elevator brake, which can comprehensively detect whether the elevator brake has potential safety hazards, synchronously maintain components with the potential safety hazards, and meanwhile, can retain data aiming at the detected potential safety hazards so as to provide subsequent brake detection as reference;

the invention synchronously provides a detection system for the detection method of the elevator brake, the system can effectively control the implementation of the detection method, the probability of elevator faults is avoided to a certain extent through the added modules, and meanwhile, the processing process of the system is more intelligent;

in addition, the module for network detection is added in the detection system, and network signals in the elevator shaft can be ensured as much as possible through the module, so that even if the elevator breaks down, trapped people can call for help through communication equipment in time, and major casualty accidents are prevented.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An elevator brake detection method is characterized by comprising the following steps:

2. The method for detecting the brake-holding of the elevator as claimed in claim 1, wherein the Step1 comprises the following substeps:

step 13: plan execution, generating report files and feeding back upwards.

3. The method for detecting the brake-holding of the elevator as claimed in claim 2, wherein in the Step12, a bottom-hole observation plan is executed in preference to a shaft humidity detection plan, wherein the shaft humidity detection plan is used in a state that the precipitation is less than or equal to 1mm/h, and wherein the bottom-hole observation plan is used in a state that the precipitation is more than or equal to 1 mm/h.

4. The method for detecting the brake holding of the elevator as claimed in claim 1, wherein the steps Step41, Step51 and Step61 are randomly executed without setting a priority execution queue.

5. The method for detecting the elevator brake according to claim 1, wherein the Step7 is implemented by a medium transmission method, the transmission target is the elevator maintenance record file in the Step1, and the content of the elevator brake maintenance related record file before the elevator brake maintenance is started is the content transmitted to the elevator maintenance record file in the previous Step 7.

6. An elevator brake detection system, which is an implementation system of the elevator brake detection method according to any one of claims 1 to 5, and is characterized by comprising:

the control terminal (1) is a master control end of the system and is used for controlling an auxiliary module below the control terminal (1) in the system;

the setting module (2) is used for setting a detection period for detecting the brake by the self-operation of the detection system;

the monitoring module (3) is used for monitoring and recording load data and use frequency of the elevator running in each detection period;

an analysis module (4) for analyzing the real-time performance of the components of the elevator;

the prediction module (5) is used for predicting components which are possibly failed in the elevator brake and naming the components as risk components;

the feedback module (6) is used for packing the result predicted by the prediction module (5) and then transmitting the result to the control terminal (1);

a brake module (7) for stopping the elevator operation;

and the configuration module (8) is used for configuring the delay starting time of the post-setting control end and the post-setting control end of the braking module (7) under the synchronous control of the control terminal (1) and the feedback module (6).

7. The elevator brake detection system according to claim 6, wherein the analysis module (4) performs data transmission by electrically connecting with the monitoring module (3) according to the analysis, and the monitoring module (3) obtains the basis for analysis.

8. The elevator brake detection system according to claim 6, wherein the prediction module (5) and the analysis module (4) are electrically connected to the circuit board to obtain an analysis result of the analysis module (4), extract performances of components related to the brake from the analysis result, and select a component label with decreasing performances as the risk component predicted in the prediction module (5).

9. The elevator brake detection system according to claim 6, wherein the monitoring module (3) is provided with a monitoring module (31) for monitoring a real-time network signal in a hoistway, forming a recording data package file to establish connection in a manner of electrically connecting with the prediction module (5), and transmitting the recording data package file to the prediction module (5).

10. The elevator brake detection system according to claim 6, wherein the brake module (7) is connected with the monitoring module (3) through a wireless network, when the monitoring module (3) monitors vital signs inside the car, the starting condition of the brake module (7) is the ending of the car running task, wherein the brake module (7) is set by the system and is started in a manner of being triggered by a feedback module or is directly controlled by the control terminal (1) or is started in a manner compatible with the two starting manners.