CN110817629A - Elevator diagnosis system - Google Patents
Elevator diagnosis system Download PDFInfo
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- CN110817629A CN110817629A CN201810904767.5A CN201810904767A CN110817629A CN 110817629 A CN110817629 A CN 110817629A CN 201810904767 A CN201810904767 A CN 201810904767A CN 110817629 A CN110817629 A CN 110817629A
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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
Abstract
The invention discloses an elevator diagnosis system. The invention provides an elevator diagnosis system, comprising: the data acquisition and receiving module is used for acquiring and receiving data generated when the elevator runs in an idle state or in a test state; the calculation module is used for calculating the data of the elevator in the safety protection in the abnormal state through data processing of the data received by the data acquisition and receiving module; and the analysis module is used for comparing the data obtained by the calculation module with standard data to judge whether the data obtained by the calculation module has safety risk or not. The elevator diagnosis of the invention acquires data generated in the process of elevator no-load operation or operation in a test state in real time, and then calculates the data of the elevator in the safety protection of the elevator under the condition of 125 percent of rated load capacity or a dangerous state by a data processing diagnosis technology to detect and evaluate the elevator emergency braking device, thereby solving the problem of difficult detection and acceptance.
Description
Technical Field
The invention belongs to the field of elevator detection, and particularly relates to an elevator diagnosis system.
Background
The elevator installation is completed, comprehensive detection and acceptance are required, the elevator can be delivered to customers after meeting standard requirements, but during inspection and acceptance, daily maintenance and annual regular inspection, safety inspection is carried out according to 125% of rated load of the elevator, safety emergency braking simulation in actual fault state is difficult to carry out, inspection is carried out according to inspection standards in maintenance state or other regulations, and the capability of safety parts and the whole machine under emergency protection cannot be evaluated. After maintenance, the running state of the elevator is difficult to control accurately, and the complete machine and each safety component are difficult to check whether the complete machine and each safety component are safe and reliable under the field condition and meet the safety requirement.
For the performance and reliability inspection and verification of the safety components every year or every time, relevant parameters such as braking distance or acceleration and deceleration are tested manually, the braking distance or the relevant parameters are extremely inconvenient to measure, faults and positions cannot be accurately determined, the workload of field personnel is large, partial detection is omitted, and hidden dangers are left for subsequent safe operation.
Elevator brake status testing as disclosed in patent publication CN101589300A, the elevator system comprising a hoistway having a car and a counterweight connected to the car by a cable, the cable being actuated by a rotating member driven by a motor, the method comprising: positioning the elevator car within the hoistway at a reference position proximate a hoistway limit switch; engaging the brake to hold the car at the reference position; actuating the rotating member to provide a test force on the brake that simulates a load of the car that is at least a maximum rated car load; and terminating the brake test if the car moves to actuate the hoistway limit switch. The scheme of the invention focuses on the elevator inspection under the full-load state, and can know that the maximum rated car load of the elevator can be realized only by a large weight, and the difficulty is large in the actual operation.
Therefore, the regular safety detection of the existing elevator has the following problems: it is difficult to perform safe emergency braking simulation in an actual failure state, safety inspection must be performed according to a specified rated load of 125%, and it is very inconvenient to perform inspection operation each time the rated load reaches 125%, so that the inspection work takes a long time, the work efficiency is low, and the work intensity is high.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an elevator diagnosis system, which acquires the no-load running information of an elevator through a sensing acquisition and data processing diagnosis technology, tests the safety of a safety protection device, and detects and evaluates an emergency braking device in a no-load car mode to achieve the purpose of safety risk evaluation in an emergency state.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
an elevator diagnostic system, comprising:
the data acquisition and receiving module is used for acquiring and receiving data generated when the elevator runs in an idle state or in a test state;
the calculation module is used for calculating the data of the elevator in the safety protection in the abnormal state through data processing of the data received by the data acquisition and receiving module;
and the analysis module is used for comparing the data obtained by the calculation module with standard data to judge whether the data obtained by the calculation module has safety risk or not.
Preferably, the system further comprises: and the feedback module is used for displaying the state of the elevator or evaluating whether a safety risk exists.
Preferably, the calculation module acquires, according to the data acquisition receiving module: and the total mass of the elevator device and the mass difference between the elevator car and the counterweight are calculated according to the mass of the elevator car side in no load, the mass of the elevator car side in full load and the mass parameter of the elevator counterweight side in a stopped or running state.
Preferably, the calculation module obtains the running resistance and/or inertia parameter of the elevator according to the total mass of the elevator device, the mass difference between the elevator car and the counterweight, and the acceleration and deceleration of the elevator collected by the sensing collector and received by the data collection and receiving module.
Preferably, the calculating module obtains the braking capability of the elevator according to the total mass of the elevator device, the mass difference between the elevator car and the counterweight, the gravity acceleration, the speed, the displacement, the position, the acceleration, the deceleration and the force received by the data collecting and receiving module, the rotational inertia of the tractor of the elevator and the rotational angular speed of the tractor.
Preferably, the calculation module obtains the deceleration and the safety protection distance range of the elevator in the safety protection under the condition that the rated load capacity is 125% or the dangerous state according to the braking capacity, the resistance of the elevator in operation, the gravity acceleration, the total mass of the elevator device, the mass difference between the elevator car and the counterweight, the speed, the rotational inertia of the tractor and the rotational angular speed or the angular acceleration and deceleration parameters of the tractor.
Preferably, the standard data is standard data in accordance with the safety of the elevator; and if the safety level of the data calculated by the calculation module is superior to the standard data, the analysis module judges that the elevator is safe and reliable.
Preferably, the sensor collector includes: acceleration and/or force sensors, weight loss sensors, vibration sensors, displacement sensors, speed sensors and/or photo-electromagnetic sensors and/or rotation encoding.
As a preferred aspect of the present invention, the rotation coding includes:
the idler wheel is fixedly connected to the idler wheel shaft; the magnet is fixedly arranged on the lean wheel shaft, and the magnet, the lean wheel shaft and the lean wheel are connected into a whole and rotate synchronously; the support plate is rotatably connected with the wheel leaning shaft and the support plate shaft, and the support plate shaft is fixedly arranged on the bracket;
the bracket is connected with the support plate through a connecting adjusting bolt and movably connected with a rotatable first spring pulling plate; the first spring pull plate is rotatably connected with the second spring pull plate through a pull plate shaft;
a detection plate connected with the connection adjusting bolt; the non-contact magnetic encoder and the wiring terminal are arranged on the detection plate; the contactless magnetic encoder is maintained at a fixed distance from the magnet.
Preferably, the contactless magnetic encoder is installed at an elevator fixing position and is in contact with a rotary moving member through the idler, and the contactless magnetic encoder magnetic poles are relatively rotated through the rotary moving member.
The technical scheme provided by the invention can have the following beneficial effects:
1. the elevator is used for acquiring data of the elevator running in an idle state through a sensor, the intelligent terminal receives the data acquired by the elevator, the data of the elevator in a safety protection state with a rated load capacity of 125% or a dangerous state is obtained through a calculation formula, and the calculated data is compared with standard data to further obtain whether the safety of the elevator is qualified or not. Therefore, the safety and reliability of the elevator operation can be conveniently diagnosed, and the defect that the elevator acceptance must reach the maximum rated car load detection in the prior art is overcome.
2. When the safety level of the data calculated by the calculation module is superior to the standard data specified by the state, the safety level evaluation of the elevator can be carried out, so that the safety degree of the elevator is higher.
3. The invention adopts 1 group or symmetrically adds 1 group of rotary codes, and is very suitable for harsh conditions due to the adoption of a non-contact detection principle, so that the data acquired by the acquisition module is more accurate and the data types are wider, the problem of needing a plurality of sensing systems for measurement is solved, and the cost can be greatly reduced.
4. Data generated by the operation of the elevator is reported through the feedback module, alarm information is generated in time, so that the operation and fault risks of the elevator are accurately, timely and completely mastered, the safe operation of the elevator is improved, and the elevator operation is safely solved in a bud state.
5. By means of the internet of things and the communication information technology, the intelligent terminal remotely receives information collected by the elevator, and people who check and accept no longer need to go to the field and check and accept, so that the practical needs of installation, check and acceptance and maintenance personnel are conveniently met.
Drawings
Fig. 1 is a structural view of an elevator diagnosis system according to embodiment 1 of the present invention;
fig. 2 is a structural view of an elevator diagnosis system according to embodiment 1 of the present invention;
fig. 3 is a structural view of an elevator diagnosis system according to embodiment 2 of the present invention;
FIG. 4 is an overall structural view of embodiment 3 of the present invention;
FIG. 5 is a side view of example 3 of the present invention;
FIG. 6 is a top view of example 3 of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the following examples.
Example 1
As shown in fig. 1 and 2, the elevator diagnosis system of the present embodiment includes: data collection and reception module 100, calculation module 200, analysis module 300, and the like. The specific operation is as follows:
the data acquisition and receiving module 100 is used for acquiring and receiving data generated when the elevator runs in an idle state or in a test state.
The test condition is a weight in the elevator car.
The data acquisition and receiving module 100 receives data by relying on the internet of things and communication information technology.
Specifically, the data collecting and receiving module 100 receives the data collected by the sensor through a wired data exchange interface or a wireless transmission manner.
The wireless transmission mode comprises wireless Wi-Fi, wireless Bluetooth or other radio frequency technologies, and the wired data exchange interface comprises a network or a serial port, USB, 232/485, TTL and the like.
The data received by the data acquisition and receiving module 100 are acceleration, deceleration, vibration, displacement, force and speed generated in the running process of the elevator, and the data are acquired by a sensing collector arranged at the position of an elevator car or a counterweight.
The sensing collector comprises: acceleration and/or force sensors 110, weight loss sensors 120, vibration sensors 130, displacement sensors 140, speed sensors and/or photo-electromagnetic sensors and/or rotation encoding 150.
Wherein acceleration or traction tension or weighing weight generated in the empty state of the elevator is measured by the acceleration and/or force sensor 110, the rising or falling of the elevator is measured by the weightlessness sensor 120, the vibration of the elevator is measured by the vibration sensor 130, the displacement of the elevator is measured by the displacement sensor 140, and the speed of the elevator is measured by the speed sensor and/or the photo-electromagnetic sensor and/or the rotary encoder 150.
The rotary encoder 150 employs a non-contact magnetic encoder that measures elevator car speed, displacement, acceleration, deceleration, force, and vibration via wheels and guides or relative motion.
The speed and displacement data received by the data acquisition and receiving module 100 is the braking distance S of the elevator when the elevator starts to decelerate and the elevator stops.
The data acquisition and receiving module 100 acquires data information which can be acquired only by manual detection and measurement, and then potential safety hazards are effectively discovered through processing and analysis of data processing software.
And the calculating module 200 is used for calculating the data received by the data collecting and receiving module 100 to obtain expected data of the elevator in safety protection in an abnormal state.
The abnormal state is an operation state when the load capacity of the elevator reaches 125% of the rated load capacity, or a dangerous emergency state when the load capacity of the elevator does not reach 125%, for example: elevator overspeed, sudden unexpected movement or stopping, and other adverse conditions.
The acceleration of the elevator when the elevator is rolling back on its own car, which is received by the data acquisition and reception module 100, is assumed to be a0Measuring the equivalent mass of the elevator car side when the elevator car side is empty as P, the equivalent mass of the elevator car side when the elevator car side is full as P + Q, the equivalent mass Pw of the elevator counterweight side and the rotational inertia J of the traction machine;
then the total mass M of the elevator device at full load is P + Q + Pw (M at idle time is P + Pw), and the mass difference △ M between the elevator car and the counterweight is Pw-P.
And according to the obtained full load mass M of the elevator system, the mass difference △ M between the elevator car and the counterweight and the received acceleration a when the elevator automatically rolls0Obtaining the resistance F of elevator operationf＝Ma0-△Mg±Jε。
Suppose that the deceleration of the elevator received by the data acquisition and reception module 100 when the elevator is braked in an empty state is a1Then according to the formula: FS is 0.5Ma1+ △ MgS +0.5J omega ^2, calculate the braking capacity FS of elevator, used in this formula, g is the acceleration of gravity, J is the moment of inertia of the hauler, omega is the rotational angular velocity of the hauler, these parameters are elevator fixed parameters, need not be measured through the sensor in principle, but actually can more accurately obtain and verify the elevator configuration through the force sensor.
The braking energy FS and the resistance F of the elevator operation are obtained according to the calculationfThe elevator system full load mass M, the elevator car and counterweight mass difference △ M, the gravity acceleration g, and the fixed parameters of the elevator, i.e. the rotating inertia J of the tractor, the rotating angular speed omega of the tractor and the rotating angular acceleration epsilon of the tractor, and the deceleration a of the elevator under the condition of the rated load of 125 percent or the dangerous state is calculated as (FS + F)f- △ Mg ± J epsilon), the speed V at which the elevator runs, the distance S of travel1(at ^2)/2, and the safety protection distance S is 0.5 (MV)1^2+Jω^2)/(FS-△Mg+Ff). t is a time parameter and can be obtained by a background intelligent terminal.
For example:
traction ratio 1: 1
The data acquisition and receiving module 100 receives the speed V when the elevator runs in an unloaded state1Deceleration a1Displacement, etc.
Speed V measured by empty elevator1And the displacement obtains the braking distance S when the elevator is unloaded.
If the mass on the elevator car side is P when the elevator car is empty, P + Q when the elevator car is full, the mass Pw on the elevator counterweight side, the moment of inertia J of the tractor, the angular velocity is omega, the angular acceleration is epsilon, and the data are configuration data of the elevator, and can be obtained by a force sensor, or related parameters such as P, Q, Pw, J, omega and the like can be directly obtained through the configuration of the elevator.
At a certain speed V1Driving or self-propelled upward-sliding (or driving) running speed V of elevator1And triggering a safety protection device for emergency braking. That is, when the elevator automatically slides (or drives to go upwards for maintenance) in the no-load state, the sliding speed of the elevator reaches V1Triggering the safety protection device.
When the mass of the elevator car side is empty, the equivalent is P, when the mass is full, P + Q, and the mass Pw of the elevator counterweight side obtains the total mass M of the elevator device full load as P + Q + Pw, and the mass difference △ M of the elevator car and the counterweight as Pw-P.
Then according to the acceleration a of the elevator system during self-sliding car received by the data acquisition and receiving module 1000And calculating to obtain the resistance F of the elevator when the elevator is in no loadf＝Ma0-△Mg±Jε。
According to the mass M of the full load of the system, which is P + Q + Pw, the mass difference between the elevator car and the counterweight, which is △ M, which is Pw-P, and the system resistance FfInertia J and angular acceleration ε of the rotating body, and deceleration a received by the data acquisition reception module 1001Obtaining the braking capacity of the elevator in no load: ma ═ FS1+△MgS+Jε-Ff。
The brake capability FS of emergency safety protection devices such as a tractor brake, a rope clamp, a rail clamp, a safety clamp and the like can be detected through the no-load state.
Based on the calculated data, relevant data of the elevator in safety protection in severe emergency such as 125% of rated load capacity or overspeed is calculated.
When the elevator is in safety protection in severe emergency states such as 125% of rated load capacity or overspeed, the deceleration calculation is as follows:
a＝(FS+Ff- △ Mg. + -. J ε) to confirm that the average deceleration of braking is 0.2 g.ltoreq.a.ltoreq.1.0 g.
Brake energy of FS-elevator, FfResistance in elevator operation, M-total mass of full elevator installation, △ M-elevator car and pairThe weight difference, the moment of inertia of the J-tractor, the omega-angular velocity and the epsilon-angular acceleration.
And (3) calculating the speed: v is at;
t-time, obtained from the background.
And (3) calculating the deceleration running distance: s1＝(at^2)/2
And (4) calculating a safety protection distance:
S2＝0.5(MV1^2+Jω^2)/(FS-△Mg+Ff). For example, the obtained safety protection distance is as follows: 1m, and a solvent.
The process of the scheme is executed in an intelligent terminal, and the intelligent terminal (such as a mobile phone and a computer) becomes a conventional device for each installation, acceptance and maintenance personnel.
Data processing software is installed on the intelligent terminal, and data processing diagnosis processing technology adopted in the data processing software is to analyze and process data received by the data acquisition and receiving module to obtain information about the speed, acceleration and deceleration, vibration, position and the like of the elevator in a rated load capacity of 125% or in a dangerous state, and the information is used for judging elevator fault diagnosis in the follow-up process.
And the analysis module 300 is used for comparing the data obtained by the calculation module 200 with standard data to judge whether the data obtained by the calculation module 200 has a safety risk.
The standard data are standard data which accord with the safety of the elevator.
And verifying whether the operation of the elevator is qualified or not according to the specified elevator acceptance standard data, specifically, comparing the data calculated by the calculation module 200 with the standard data, and judging whether the data calculated by the calculation module 200 is in a specified standard range or not.
For example: if the specified total distance of the accidental movement of the car is less than 1.2m, the calculated safety protection distance S calculated by the calculating module 200 meets the standard2And 1m is 1m, 1m is compared with 1.2m, 1m does not exceed 1.2m, and the safety protection distance obtained by testing is superior to that of standard data, so that the safety protection braking distance of the elevator is qualified.
If the calculated safety of the module 200 is reachedProtective distance S21.3m, comparing 1.3m with 1.2m, if 1.3m exceeds 1.2m, the safety protection braking distance of the elevator is unqualified, and the analysis module 300 judges that potential safety hazard exists in the elevator and needs to send out prompt warning and maintenance information.
According to the vibration data of the elevator in the empty state measured by the vibration sensor 130 of the elevator and the displacement data measured by the displacement sensor 140, which are received by the data acquisition and receiving module 100, the analysis module 300 analyzes the position or the root of the vibration generated by the elevator, so as to provide parameters for later maintenance.
Wherein the safety factor of the elevator may be higher than the national or industry-specified standard data. Preferably, if the safety level of the data calculated by the calculation module 200 is better than the standard data, the elevator is judged to be safe and reliable.
If the safety level of the data obtained by the calculation of the calculation module 200 is not superior to the standard data, the potential safety hazard of the elevator is judged to exist, and prompt warning and maintenance information needs to be sent.
For example: the mean value and/or mean square error of the braking distances of the multiple groups of elevators obtained by the method is as follows: 1.1m, which is better than the national safety protection distance of 1.2m, the analysis module 300 determines that the elevator has no safety risk.
In summary, according to the elevator diagnosis system provided by the embodiment, the implementation process of the scheme of the embodiment is completed on the intelligent terminal, and the elevator is accepted under the empty state of the elevator to reach the purpose of being fully loaded by 125%, so that the running state test analysis and the problem location can be conveniently and simply carried out, the problems existing in the running of the elevator can be timely found, and the safety of the elevator is greatly improved.
Example 2
As shown in fig. 3, the present embodiment includes a data collecting and receiving module 100, a calculating module 200, and an analyzing module 300 in embodiment 1, and the present embodiment is different from embodiment 1 in that: the embodiment further includes a feedback module 400, an alarm unit 410, and a storage module 500, and the specific operations are as follows:
a feedback module 400 for displaying the status of the elevator or evaluating whether there is a safety risk.
After the analysis module 300 judges whether the operation of the elevator is qualified, the whole process of the elevator test operation is displayed through the feedback module 400, the data received by the data acquisition and receiving module 100 is displayed, the result calculated by the calculation module 200 is displayed, and whether the analyzed data of the analysis module 300 is qualified is displayed.
If the analysis result of the analysis module 300 contains data of one type which is not qualified, the elevator is displayed to be unqualified or potential safety hazard exists, and unqualified data is pointed out in an important way, so that maintenance personnel can maintain the elevator in a targeted way.
Preferably, the feedback module 400 further includes an alarm unit 410, configured to receive the warning information and send an alarm signal.
The alarm unit 410 is used for giving an alarm to a technician in time when the analysis module 300 analyzes that the data generated in the running process of the elevator is unqualified, namely the elevator has potential safety hazard.
The system also includes a storage module 200 for storing data received and generated during elevator acceptance for later review by maintenance personnel.
Preferably, the storage module 200 generates a check report for each saved data, so that the elevator maintenance personnel can conveniently know the state of the elevator. The format and display content of the inspection report are set by a user.
To sum up, the elevator diagnostic system that this embodiment provided forms the report with the data that the elevator operation produced through feedback module to in time produce alarm information, thereby accurately, in time, grasp elevator operation, trouble risk in the whole journey, in order to improve the safe operation of elevator, solve elevator operation safety at the bud really.
Example 3
The embodiment provides a rotary code for elevator diagnosis, and the rotary code of the embodiment comprises: the device comprises a support 1, a first spring pull plate 2, a pull plate shaft 3, a second spring pull plate 4, a backup wheel spring 5, a support plate shaft 6, a support plate 7, a backup wheel shaft 8, a backup wheel 9, a connecting adjusting bolt 10, a magnet 11, a detection plate 12, a wiring terminal 13, a non-contact magnetic encoder 14 and a rotary moving part 15. Fig. 4 is a whole structure diagram of the present embodiment, fig. 5 is a side view of the present embodiment, and fig. 6 is a top view of the present embodiment. The specific operation process of the scheme is as follows:
the data received by the data acquisition and receiving module 100 is acquired by a sensor collector arranged at an elevator car or a counterweight position.
The sensor harvester includes a rotation code 150.
The overall structure of the rotary encoder 150 is shown in fig. 4, and the connection of the specific components of the overall structure is as follows:
a idler wheel 9 fixedly connected to the idler shaft 8; the magnet 11 is fixedly arranged on the wheel-leaning shaft 8, and the magnet 11, the wheel-leaning shaft 8 and the wheel 9 are connected into a whole and rotate synchronously; the support plate 7 is rotatably connected with the wheel leaning shaft 8 and the support plate shaft 6, and the support plate shaft 6 is fixedly arranged on the bracket 1;
the bracket 1 is connected with the support plate 7 through a connecting adjusting bolt 10 and movably connected with the rotatable first spring pulling plate 2; the first spring pulling plate 2 is rotationally connected with the second spring pulling plate 4 through a pulling plate shaft 3;
a detection plate 12 connected to the connection adjustment bolt 10; the non-contact magnetic encoder 14 and the wiring terminal 13 are fixedly arranged on the detection plate 12; a fixed distance is maintained between the contactless magnetic encoder 14 and the magnet 11.
The contactless magnetic encoder 14 is installed at an elevator fixing position and contacts with a rotary moving member through the idler wheel, and the magnetic poles of the contactless magnetic encoder 14 form relative rotation through the rotary moving member.
The action principle of the contactless magnetic encoder is as follows:
the non-contact magnetic encoder is installed at the car, when the idler wheel 9 contacts with the rotary motion piece 15, the rotary motion piece 15 and the idler wheel 9 rub to drive the magnet 11 to rotate, the idler wheel 9 acts all the time through the idler wheel spring 5, and a certain acting force is generated between the idler wheel 9 and the rotary motion piece 15.
The detection plate 12 is provided with a contactless magnetic encoder 14 and a connection terminal 13, and a certain distance δ is kept between the contactless magnetic encoder 14 and the magnet 11. The detection plate 12 is provided with a non-contact magnetic encoder 14, and the non-contact rotation position detection operation is used for measurement.
For example, the rotary encoder detects accidental movement of the car. In the door area, when the landing door is opened and the landing door is not locked, the rotary code starts to detect the displacement of the lift car, and when the displacement exceeds a certain set distance, a signal that the elevator has potential safety hazards is sent out, so that the displacement is detected and controlled.
And if the rotary codes detect the whole elevator vibration in the elevator running process. When the elevator runs up and down, the displacement vibration of the elevator is measured through the rotary codes, and the vibration generating area is detected, so that parameters are provided for control and complete machine test.
And detecting an uplink overspeed. When the speed of the monitoring elevator car is 115% of the rated speed of the overspeed elevator or the overspeed governor moves upwards and exceeds the speed, the monitoring elevator car sends out a trigger signal all the time to enable the brake to act and brake.
And detecting the vibration of the whole elevator in the running process of the elevator. When the elevator runs up and down, the root cause of the vibration generated by the elevator is detected through displacement measurement and vibration measurement, and parameters are provided for control and complete machine test.
Then, the elevator transmits the data measured by the rotary codes to an intelligent terminal through a wired data exchange interface or a wireless transmission mode, and the intelligent terminal processes and analyzes the data.
The rotary codes of the example are 1 group, and 1 group can be symmetrically added, so that the mutual judgment of 2 groups is realized, and the reliability and the accuracy of detection are improved.
In summary, the rotary encoder for elevator diagnosis provided by the embodiment measures the speed, acceleration and deceleration, moving distance and vibration during running of the car through the up-and-down movement of the wheels and the rotary moving part, and can also check and accept the performance evaluation of the safety protection device of the elevator under the emergency braking condition through a simulation test, thereby solving the problem of difficult inspection under the fault condition required by standards on a construction site.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. An elevator diagnostic system, comprising:
the data acquisition and receiving module is used for acquiring and receiving data generated when the elevator runs in an idle state or in a test state;
the calculation module is used for calculating the data of the elevator in the safety protection in the abnormal state through data processing of the data received by the data acquisition and receiving module;
and the analysis module is used for comparing the data obtained by the calculation module with standard data to judge whether the data obtained by the calculation module has safety risk or not.
2. The elevator diagnostic system of claim 1, further comprising: and the feedback module is used for displaying the state of the elevator or evaluating whether a safety risk exists.
3. The elevator diagnostic system of claim 1, wherein the calculation module is configured to calculate the estimated elevator traffic based on the data collected by the data collection and reception module: and the total mass of the elevator device and the mass difference between the elevator car and the counterweight are calculated according to the mass of the elevator car side in no load, the mass of the elevator car side in full load and the mass parameter of the elevator counterweight side in a stopped or running state.
4. The elevator diagnosis system according to claim 3, characterized in that the calculation module calculates the running resistance and/or inertia parameters of the elevator according to the total mass of the elevator device, the mass difference between the elevator car and the counterweight, and the acceleration and deceleration of the elevator collected by the sensing collector received by the data collection and receiving module.
5. The elevator diagnosis system according to claim 3, wherein the calculation module calculates the braking capability of the elevator according to the total mass of the elevator device, the mass difference between the elevator car and the counterweight, the gravity acceleration, the speed, the displacement, the position, the acceleration, the deceleration and the force received by the data acquisition and reception module, and the rotational inertia and the rotational angular velocity of the traction machine of the elevator.
6. The elevator diagnosis system according to claim 4 or 5, wherein the calculation module derives the deceleration and the safety protection distance range of the elevator under the condition of 125% of rated load capacity or dangerous condition for safety protection according to the braking capacity, the resistance of elevator operation, the gravity acceleration, the total mass of the elevator device, the mass difference between the elevator car and the counterweight, the speed, the rotational inertia of the traction machine, the rotational angular speed or the angular acceleration and deceleration parameters.
7. The elevator diagnostic system according to claim 1, wherein the standard data is standard data in conformity with elevator safety; and if the safety level of the data calculated by the calculation module is superior to the standard data, the analysis module judges that the elevator is safe and reliable.
8. The elevator diagnostic system of claim 4, wherein the sensor harvester comprises: acceleration and/or force sensors, weight loss sensors, vibration sensors, displacement sensors, speed sensors and/or photo-electromagnetic sensors and/or rotation encoding.
9. The elevator diagnostic system of claim 8, wherein the rotary encoder comprises:
the idler wheel is fixedly connected to the idler wheel shaft; the magnet is fixedly arranged on the lean wheel shaft, and the magnet, the lean wheel shaft and the lean wheel are connected into a whole and rotate synchronously; the support plate is rotatably connected with the wheel leaning shaft and the support plate shaft, and the support plate shaft is fixedly arranged on the bracket;
the bracket is connected with the support plate through a connecting adjusting bolt and movably connected with a rotatable first spring pulling plate; the first spring pull plate is rotatably connected with the second spring pull plate through a pull plate shaft;
a detection plate connected with the connection adjusting bolt; the non-contact magnetic encoder and the wiring terminal are arranged on the detection plate; the contactless magnetic encoder is maintained at a fixed distance from the magnet.
10. The elevator diagnostic system of claim 9, wherein the contactless magnetic encoder is mounted in an elevator fixed position and is in contact with a rotating motion member via the idler, the contactless magnetic encoder poles being brought into relative rotation by the rotating motion member.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904767.5A CN110817629B (en) | 2018-08-09 | 2018-08-09 | Elevator diagnosis system |
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| CN201810904767.5A CN110817629B (en) | 2018-08-09 | 2018-08-09 | Elevator diagnosis system |
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| CN110817629A true CN110817629A (en) | 2020-02-21 |
| CN110817629B CN110817629B (en) | 2021-05-04 |
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| CN111724500A (en) * | 2020-06-17 | 2020-09-29 | 南通中力科技有限公司 | Progressive real-time recording system for safety gear debugging data |
| CN111874775A (en) * | 2020-06-12 | 2020-11-03 | 朱凯 | Elevator safety monitoring system based on big data |
| CN112340565A (en) * | 2020-11-25 | 2021-02-09 | 南京博寰机电设备有限公司 | Elevator maintenance transmission device based on Internet of things |
| CN112499418A (en) * | 2020-12-17 | 2021-03-16 | 广东梯云科技有限公司 | Magnetic induction elevator operation data acquisition system and acquisition method thereof |
| CN114291678A (en) * | 2021-12-30 | 2022-04-08 | 成都科达光电技术有限责任公司 | Multifunctional safety monitoring equipment for construction elevator |
| CN116199059A (en) * | 2023-03-08 | 2023-06-02 | 宜科(天津)电子有限公司 | Elevator running state monitoring system |
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| CN111874775A (en) * | 2020-06-12 | 2020-11-03 | 朱凯 | Elevator safety monitoring system based on big data |
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| CN114291678A (en) * | 2021-12-30 | 2022-04-08 | 成都科达光电技术有限责任公司 | Multifunctional safety monitoring equipment for construction elevator |
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| CN116199059A (en) * | 2023-03-08 | 2023-06-02 | 宜科(天津)电子有限公司 | Elevator running state monitoring system |
| CN116199059B (en) * | 2023-03-08 | 2023-11-14 | 天津宜科自动化股份有限公司 | Elevator running state monitoring system |
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