CN105565101B - A kind of balance coefficient of elevator detection means and method - Google Patents
A kind of balance coefficient of elevator detection means and method Download PDFInfo
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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
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Abstract
A kind of balance coefficient of elevator detection means of the present invention and method are related to a kind of detection means of elevator, more particularly to a kind of device for being used to detect the coefficient of balance of elevator.Its purpose is to provide, a kind of simple in construction, cost is low, easy to operate, gather a kind of balance coefficient of elevator detection means that variable is few, acquisition time is short.A kind of balance coefficient of elevator detection means of the present invention includes power detection module (10), and it is used for the power for detecting the elevator traction machine (31)；With user terminal (20), it is connected with the power detection module (10), and it exports balance coefficient of elevator q according to the power of the elevator traction machine by equation below：；Wherein, q is balance coefficient of elevator；Q is rated load；G is acceleration of gravity；NXFor car (32) empty down power；NSFor the unloaded ascending power of car (32)；V is the normal speed that car (32) or counterweight (33) are run.
Description
Technical Field
The invention relates to a detection device of an elevator, in particular to a device for detecting a balance coefficient of the elevator.
Background
The national standard BG7588-2003 defines the equilibrium coefficients as: the "balance factor", i.e. the amount by which the nominal load capacity and the car mass are balanced by the counterweight or counterweights. "
The current elevator technical standard and elevator inspection rule adopt a test method which comprises the following steps: the lift car respectively carries the rated load capacity of 30%, 40%, 45%, 50% and 60% to operate in the upper and lower whole ranges, when the lift car and the counterweight operate to the same horizontal position, the current value of the motor is recorded, a current-load curve is drawn, and the balance coefficient is determined by the intersection point of the upper and lower operation curves.
The detection method for determining the balance coefficient by loading and running the elevator step by step, recording the current value of the motor and drawing the current-load curve chart has the advantages of mature technology and reliable detection result; the defect is that the test is time-consuming and labor-consuming, the field operation time usually exceeds 1 hour, and is about one third of the detection workload of the whole elevator test.
Because the existing elevator balance coefficient detection method is time-consuming and labor-consuming, in recent years, no-load balance coefficient test technology is developed, and some research results are obtained, such as a method for determining the balance coefficient by detecting the tension of steel wire ropes on two sides of a traction sheave, which is researched and developed by special equipment detection institute of Anhui province, a static two-side weight difference measurement method researched and developed by Liaoning petrochemical university, a balance coefficient detection method of ADIASYSTEM elevator detection system of Germany TUV company and the like. Because of adopting no-load test, the link of repeatedly carrying the weight is saved, and the problems that the test data is the static working condition data of the elevator, the difference exists between the static working condition data and the dynamic test data adopted by the existing elevator inspection rule, the installation of the test device is inconvenient when the inspection is implemented and the like exist at present, and the popularization and the application are limited.
Chinese patent publication No. CN101670965A, published as 3/11/2010, entitled "method for detecting balance coefficient of elevator", discloses a technical solution for calculating a balance coefficient by using a formula (Tup + Tdown) ﹡ i/R/Q/2 by detecting a motor no-load uniform upward torque Tup and a motor no-load uniform downward torque Tdown (i is a traction ratio, R is a radius of a traction sheave, and Q is a rated load). The detection method has the disadvantages that theoretical analysis and actual detection verify that the detection result of the detection method has errors of more than 20 percent, because the elevator load is transmitted to the motor, different mechanical mechanisms are arranged in the middle of the detection method, the transmission efficiency is possibly different, and the power transmission efficiency of the forward direction (no-load downward, the motor drags the elevator load through the mechanical mechanism) and the reverse direction (no-load upward, the elevator load drags the motor through the mechanical mechanism) is greatly different, for example, a widely used worm and gear elevator tractor has the forward transmission efficiency of about 60-80 percent and the reverse transmission efficiency of about 0-40 percent. The detection method does not fully consider the influence of the transmission efficiency on the detection result. And secondly, the motor torque is detected, the motor torque is completely detected through a motor torque detection function carried by a frequency converter, and the detection precision cannot meet the requirement of GB/T10059-2009 Elevator test method.
Chinese patent publication No. CN 102674103A discloses a method for detecting the balance coefficient of an elevator, which mainly collects the power W of an elevator tractor when a lift car with no load moves downwards and the lift car moves to the same horizontal position with a counterweight, and the speed V of the lift car when the lift car with no load moves upwards to the same horizontal position with the counterweights. However, acquiring V of the phase velocitysThe process requires cumbersome instrumentation and also requires sensing at a location close to the car, which is somewhat dangerous.
Disclosure of Invention
The invention aims to solve the technical problem of providing an elevator balance coefficient detection device which is simple in structure, low in cost, simple and convenient to operate, less in acquisition variable and short in acquisition time.
The invention relates to a device for detecting the balance coefficient of an elevator, which comprises
A power detection module for detecting the power of the elevator traction machine; and
the user terminal is connected with the power detection module and outputs an elevator balance coefficient q according to the power of the elevator traction machine through the following formula:
wherein,
q is an elevator balance coefficient;
q is a rated load;
g is gravity acceleration, and is 9.8m/s2；
NXThe idle load downlink power of the lift car;
NSno-load uplink power is provided for the lift car;
v is the nominal speed of the car or counterweight operation.
The invention uses the power as the independent variable through the above formula, and adds the preset rated load, the gravity acceleration, the no-load down power of the lift car, the no-load up power of the lift car and the rated speed of the lift operation, thus the balance coefficient of the lift can be calculated. The invention also avoids the danger that the traditional measuring method needs to measure the speed of the elevator car. The invention has the advantages that no load is needed in the detection process, the test process is convenient and quick, the whole measurement process is about 5 minutes, and the process of manually carrying the weight in the conventional current detection is saved.
Preferably, the power detection module comprises a current collection submodule and a voltage collection submodule, the current collection submodule and a live wire of a power line of the elevator traction machine collect current signals in a mutual inductance mode, and the voltage collection submodule and the power line of the elevator traction machine are connected in parallel to collect voltage signals.
Preferably, the user terminal further comprises a display module, and the user terminal draws a dynamic graph with the elevator balance coefficient q as an abscissa and with time (unit is second) as an ordinate, and outputs the dynamic graph to the display module.
Preferably, the power detection module comprises
A conversion module comprising a conversion switch that converts between a first loop in which current flows through both the voltage acquisition submodule and the current acquisition submodule to enable power acquisition and a second loop in which current to the voltage acquisition submodule is interrupted and current flows through a standby path to the standby current acquisition submodule to stop power acquisition; and
a processing module coupled to the transfer switch, performing control for transferring to the first loop when power acquisition is to be performed, and control for transferring to the second loop when power acquisition is not to be performed, and controlling the power of the power supply voltage according to the detected power value of the power detection module.
The present invention can reduce the power consumption of the present invention by the above power consumption control method, in other words, the present invention can change the circuit state only when the circuit state is to be changed, thereby reducing the power loss, and increase the power of the power supply according to the detected power of the elevator traction machine, thereby increasing the power obtained by the elevator traction machine, thereby making the operation of the elevator traction machine more stable, i.e. compensating the power consumed by the present device.
Preferably, the
The output side of the current collection submodule is connected to one terminal of the load,
one input side of the voltage acquisition submodule is connected to the other terminal of the load, an
The transfer switch is configured such that
The common contact is connected to the output side of the current collection submodule,
the first contact is connected to the input side of the current collection submodule, an
The second contact is connected to the other input side of the voltage acquisition submodule,
when an electrical connection between the common contact and the first contact is established, a second loop is formed in which a backup path is formed and current to the voltage acquisition sub-module is interrupted, and
when the electrical connection between the common contact and the second contact is established, a first circuit is formed in which a connection body formed by the voltage detection unit and the load connected in parallel to each other is connected to the current detection unit, and a current flows through both the voltage detection unit and the current detection unit to enable power detection.
Preferably, the current collection submodule comprises a first magnetic field sensor, a second magnetic field sensor, a wireless communication module and a server, the first magnetic field sensor and the second magnetic field sensor are used for detecting the conductivity type, the carrier concentration and the carrier mobility of a power line of the elevator traction machine, the anode of the first magnetic field sensor is connected with the power line, the cathode of the first magnetic field sensor is connected with the server through the wireless communication module, the cathode of the second magnetic field sensor is connected with the power line, the anode of the second magnetic field sensor is connected with the server through another wireless communication module, and the output end of the amplifying circuit is connected with the processing unit;
the server comprises a primary server and two final-stage servers, wherein the two final-stage servers are connected to form a final-stage server cluster, the primary server is the primary server cluster, the primary server cluster is connected with the final-stage server cluster, the primary server cluster is connected with the first magnetic field sensor and the second magnetic field sensor through a wireless communication module, the primary server generates a current signal and transmits the current signal to the final-stage server cluster, the final-stage server cluster is connected with the user terminal, one final-stage server generates a power signal, the other final-stage server controls the power consumed by the power supply compensation current collection submodule according to the power signal, and the power consumed by the current collection submodule is as follows: the difference between the power detected by the power supply itself and the power of the power signal.
The invention transmits the current acquisition submodule and the voltage acquisition submodule to the primary server cluster through the wireless communication module, so that a high-voltage wire of the elevator traction machine is separated from a user terminal, the user terminal can adjust the balance coefficient and the dynamic diagram of the elevator at any time, the danger caused by the detection of the high-voltage circuit is avoided, and the power supply can be controlled by the other last-stage server to increase the power after the power supply detects the power of the last-stage server, so that the power of the elevator traction machine is compensated, the power change of the elevator traction machine is normal, and the condition that the elevator car runs unstably and even runs dangerously due to the sudden change of the power of the elevator traction machine caused by the partial pressure and the shunt of the current acquisition submodule and the voltage.
Preferably, the voltage acquisition submodule comprises a first magnetic field sensor, a second magnetic field sensor, a wireless communication module and a server, the first magnetic field sensor and the second magnetic field sensor are used for measuring the conductivity type, the carrier concentration and the carrier mobility of a power line of the elevator traction machine, the anode of the first magnetic field sensor is connected with the power line, the cathode of the first magnetic field sensor is connected with the server through the wireless communication module, the cathode of the second magnetic field sensor is connected with the power line, the anode of the second magnetic field sensor is connected with the server through another wireless communication module, and the output end of the amplifying circuit is connected with the processing unit;
the server comprises a primary server and two final-stage servers, wherein the two final-stage servers are connected to form a final-stage server cluster, the primary server is the primary server cluster, the primary server cluster is connected with the final-stage server cluster, the primary server cluster is connected with the first magnetic field sensor and the second magnetic field sensor through a wireless communication module, the primary server generates a voltage signal and transmits the voltage signal to the final-stage server cluster, the final-stage server cluster is connected with the user terminal, one final-stage server generates a power signal, the other final-stage server controls the power consumed by a power supply compensation voltage acquisition submodule according to the power signal, and the power consumed by the voltage acquisition submodule is as follows: the difference between the power detected by the power supply itself and the power of the power signal.
The invention transmits the current acquisition submodule and the voltage acquisition submodule to the primary server cluster through the wireless communication module, so that a high-voltage wire of the elevator traction machine is separated from a user terminal, the user terminal can adjust the balance coefficient and the dynamic diagram of the elevator at any time, the danger caused by the detection of the high-voltage circuit is avoided, and the power supply can be controlled by the other last-stage server to increase the power after the power supply detects the power of the last-stage server, so that the power of the elevator traction machine is compensated, the power change of the elevator traction machine is normal, and the condition that the elevator car runs unstably and even runs dangerously due to the sudden change of the power of the elevator traction machine caused by the partial pressure and the shunt of the current acquisition submodule and the voltage.
Preferably, the user terminal is one or more of the following combinations:
smart phones, computers, smart tablets, smart watches.
The invention relates to a method for detecting a balance coefficient of an elevator, wherein a user terminal also comprises a printing module, the printing module is clamped with the user terminal, and the printing process of the printing module comprises the following steps:
and S100, generating a dynamic graph by the user terminal.
S200, the user terminal detects that the printing module is in a matching state and a ready state,
if both the match status and the ready status are satisfied, proceed to S400,
if the matching state and the ready state are not both satisfied, the process goes to S300.
S300, after 15 seconds, executing the following steps once, if the following steps are successfully executed, jumping to S400,
if the following steps are failed to be executed, the following steps are repeatedly executed after 15 seconds;
the user terminal sends the product serial number of the user terminal to the printing module in an NFC and/or Bluetooth mode, the printing module sends the product serial number of the printing module to the user terminal in an NFC and/or Bluetooth mode, and the user terminal and the printing module construct a binding state between the product serial number of the user terminal and the product serial number of the printing module.
S400, between the user terminal in the binding state and the printing module, the user terminal sends the dynamic graph to the printing module for printing.
Compared with the traditional printing method, the printing method can utilize an NFC and/or Bluetooth mode to handshake with the printing module and print the dynamic graph, so that the printing module utilized by the invention can be fixed with the user terminal and can also be detached, the modularization of printing equipment is realized, and the volume of equipment for detecting the elevator balance coefficient is further reduced.
Wherein, the step S300 further includes the steps of:
s301, the user terminal searches for the printing module within the matching distance range through WIFI and/or Bluetooth;
s302, the user terminal displays the list of the searched printing modules, and the display module of the user terminal acquires the printer selected by the user through the list of the printing modules.
S303, the user terminal and the printing module construct the binding state between the product serial number of the user terminal and the product serial number of the printing module.
However, the parallel voltage acquisition sub-modules and the current detection modules connected in a mutual inductance manner divide and shunt the voltage of the elevator traction machine of the elevator, so that the actual power of the elevator traction machine fluctuates, the operation of the elevator traction machine is unstable, the elevator car is unstable, and even serious accidents occur. Therefore, how to reduce the partial pressure and the shunt flow of the power detection module is a problem to be solved urgently.
Preferably, the current acquisition submodule acquires a current signal of a power line of the elevator traction machine through a mutual inductance type signal acquisition terminal.
Preferably, the user terminal further comprises a key module, a power supply module and an operation module, wherein the operation module is used for outputting the data acquired by the power detection module to the elevator balance coefficient q through the formula, the key module adopts a mechanical or electronic key to input the relevant data of the elevator, and the power supply module adopts a 220V voltage transformation power taking or battery power supply mode.
The invention relates to a device for detecting the balance coefficient of an elevator, which is different from the prior art in that the device for detecting the balance coefficient of the elevator takes power as an independent variable through the formula, and adds preset rated load, gravity acceleration, no-load down power of a car, no-load up power of the car and rated speed of the operation of the elevator to calculate the balance coefficient of the elevator. The invention also avoids the danger that the traditional measuring method needs to measure the speed of the elevator car. The invention has the advantages that no load is needed in the detection process, the test process is convenient and quick, the whole measurement process is about 5 minutes, and the process of manually carrying the weight in the conventional current detection is saved.
The elevator balance coefficient detection device of the invention is further explained with reference to the attached drawings.
Drawings
Fig. 1 is a schematic structural diagram of an elevator balance coefficient detection device.
Detailed Description
As shown in figure 1, the device for detecting the balance coefficient of the elevator comprises
A power detection module 10 connected to a power line of an elevator traction machine 31, for detecting power of the elevator traction machine 31; and
and the user terminal 20 is connected with the power detection module 10, and outputs an elevator balance coefficient q according to the power of the elevator traction machine through the following formula:
wherein,
q is an elevator balance coefficient;
q is a rated load;
g is the acceleration of gravity, preferably 9.8m/s2；
NXNo-load down power for the car 32;
NSno-load up power for the car 32;
v is the nominal speed at which the car 32 or counterweight 33 is operating.
The invention uses the power as the independent variable through the above formula, and adds the preset rated load, the gravity acceleration, the no-load down power of the lift car, the no-load up power of the lift car and the rated speed of the lift operation, thus the balance coefficient of the lift can be calculated. The invention also avoids the danger that the traditional measuring method needs to measure the speed of the elevator car. The invention has the advantages that no load is needed in the detection process, the test process is convenient and quick, the whole measurement process is about 5 minutes, and the process of manually carrying the weight in the conventional current detection is saved.
Preferably, the power detection module 10 includes a current collection submodule 11 and a voltage collection submodule 12, the current collection submodule 11 collects a current signal through a mutual inductance manner with a live wire of a power line of the elevator traction machine 31, and the voltage collection submodule 12 collects a voltage signal in parallel with the power line of the elevator traction machine 31.
Further preferably, the current collecting submodule 11 collects a current signal of a power line of the elevator traction machine 31 through a mutual inductance type signal collecting terminal.
Preferably, the user terminal 20 further includes a display module, and the user terminal 20 draws a dynamic graph with the elevator balance coefficient q as an abscissa and with time (unit is second) as an ordinate, and outputs it to the display module.
Preferably, the user terminal 20 further includes a key module 13, a power supply module 14, and an operation module 15, where the operation module 15 is configured to output the elevator balance coefficient q according to the formula from the data collected by the power detection module 10, the key module 13 inputs elevator-related data by using a mechanical or electronic key, and the power supply module 14 uses a 220V voltage transformation power-taking or battery power supply mode.
Preferably, the power detection module comprises
A conversion module comprising a conversion switch that converts between a first loop in which current flows through both the voltage acquisition submodule and the current acquisition submodule to enable power acquisition and a second loop in which current to the voltage acquisition submodule is interrupted and current flows through a standby path to the standby current acquisition submodule to stop power acquisition; and
a processing module coupled to the transfer switch, performing control for transferring to the first loop when power acquisition is to be performed, and control for transferring to the second loop when power acquisition is not to be performed, and controlling the power of the power supply voltage according to the detected power value of the power detection module.
The present invention can reduce the power consumption of the present invention by the above power consumption control method, in other words, the present invention can change the circuit state only when the circuit state is to be changed, thereby reducing the power loss, and increase the power of the power supply according to the detected power of the elevator traction machine, thereby increasing the power obtained by the elevator traction machine, thereby making the operation of the elevator traction machine more stable, i.e. compensating the power consumed by the present device.
Preferably, the
The output side of the current collection submodule is connected to one terminal of the load,
one input side of the voltage acquisition submodule is connected to the other terminal of the load, an
The transfer switch is configured such that
The common contact is connected to the output side of the current collection submodule,
the first contact is connected to the input side of the current collection submodule, an
The second contact is connected to the other input side of the voltage acquisition submodule,
when an electrical connection between the common contact and the first contact is established, a second loop is formed in which a backup path is formed and current to the voltage acquisition sub-module is interrupted, and
when the electrical connection between the common contact and the second contact is established, a first circuit is formed in which a connection body formed by the voltage detection unit and the load connected in parallel to each other is connected to the current detection unit, and a current flows through both the voltage detection unit and the current detection unit to enable power detection.
Preferably, the current collection submodule comprises a first magnetic field sensor, a second magnetic field sensor, a wireless communication module and a server, the first magnetic field sensor and the second magnetic field sensor are used for detecting the conductivity type, the carrier concentration and the carrier mobility of a power line of the elevator traction machine, the anode of the first magnetic field sensor is connected with the power line, the cathode of the first magnetic field sensor is connected with the server through the wireless communication module, the cathode of the second magnetic field sensor is connected with the power line, the anode of the second magnetic field sensor is connected with the server through another wireless communication module, and the output end of the amplifying circuit is connected with the processing unit;
the server comprises a primary server and two final-stage servers, wherein the two final-stage servers are connected to form a final-stage server cluster, the primary server is the primary server cluster, the primary server cluster is connected with the final-stage server cluster, the primary server cluster is connected with the first magnetic field sensor and the second magnetic field sensor through a wireless communication module, the primary server generates a current signal and transmits the current signal to the final-stage server cluster, the final-stage server cluster is connected with the user terminal, one final-stage server generates a power signal, the other final-stage server controls the power consumed by the power supply compensation current collection submodule according to the power signal, and the power consumed by the current collection submodule is as follows: the difference between the power detected by the power supply itself and the power of the power signal.
The invention transmits the current acquisition submodule and the voltage acquisition submodule to the primary server cluster through the wireless communication module, so that a high-voltage wire of the elevator traction machine is separated from a user terminal, the user terminal can adjust the balance coefficient and the dynamic diagram of the elevator at any time, the danger caused by the detection of the high-voltage circuit is avoided, and the power supply can be controlled by the other last-stage server to increase the power after the power supply detects the power of the last-stage server, so that the power of the elevator traction machine is compensated, the power change of the elevator traction machine is normal, and the condition that the elevator car runs unstably and even runs dangerously due to the sudden change of the power of the elevator traction machine caused by the partial pressure and the shunt of the current acquisition submodule and the voltage.
Of course, a variant of the invention could also be:
the voltage acquisition submodule comprises a first magnetic field sensor, a second magnetic field sensor, a wireless communication module and a server, the conductivity types, the carrier concentrations and the carrier mobility of power lines of elevator traction machines of the first magnetic field sensor and the second magnetic field sensor are respectively higher than those of the power lines of the elevator traction machines;
the server comprises a primary server and two final-stage servers, wherein the two final-stage servers are connected to form a final-stage server cluster, the primary server is the primary server cluster, the primary server cluster is connected with the final-stage server cluster, the primary server cluster is connected with the first magnetic field sensor and the second magnetic field sensor through a wireless communication module, the primary server generates a voltage signal and transmits the voltage signal to the final-stage server cluster, the final-stage server cluster is connected with the user terminal, one final-stage server generates a power signal, the other final-stage server controls the power consumed by a power supply compensation voltage acquisition submodule according to the power signal, and the power consumed by the voltage acquisition submodule is as follows: the difference between the power detected by the power supply itself and the power of the power signal.
The invention transmits the current acquisition submodule and the voltage acquisition submodule to the primary server cluster through the wireless communication module, so that a high-voltage wire of the elevator traction machine is separated from a user terminal, the user terminal can adjust the balance coefficient and the dynamic diagram of the elevator at any time, the danger caused by the detection of the high-voltage circuit is avoided, and the power supply can be controlled by the other last-stage server to increase the power after the power supply detects the power of the last-stage server, so that the power of the elevator traction machine is compensated, the power change of the elevator traction machine is normal, and the condition that the elevator car runs unstably and even runs dangerously due to the sudden change of the power of the elevator traction machine caused by the partial pressure and the shunt of the current acquisition submodule and the voltage.
Further preferably, the user terminal is one or more of the following combinations:
smart phones, computers, smart tablets, smart watches.
A method for detecting the balance coefficient of an elevator is provided, the user terminal 20 further comprises a printing module, the printing module is clamped with the user terminal, and the printing process of the printing module comprises the following steps:
and S100, generating a dynamic graph by the user terminal.
S200, the user terminal detects that the printing module is in a matching state and a ready state,
if both the match status and the ready status are satisfied, proceed to S400,
if the matching state and the ready state are not both satisfied, the process goes to S300.
S300, after 15 seconds, executing the following steps once, if the following steps are successfully executed, jumping to S400,
if the following steps are failed to be executed, the following steps are repeatedly executed after 15 seconds;
the user terminal 20 sends the product serial number of the user terminal to the printing module in an NFC and/or Bluetooth mode, the printing module sends the product serial number of the printing module to the user terminal in an NFC and/or Bluetooth mode, and the user terminal and the printing module establish a binding state between the product serial number of the user terminal and the product serial number of the printing module.
S400, between the user terminal in the binding state and the printing module, the user terminal sends the dynamic graph to the printing module for printing.
Compared with the traditional printing method, the printing method can utilize an NFC and/or Bluetooth mode to handshake with the printing module and print the dynamic graph, so that the printing module utilized by the invention can be fixed with the user terminal and can also be detached, the modularization of printing equipment is realized, and the volume of equipment for detecting the elevator balance coefficient is further reduced.
Wherein, the step S300 further includes the steps of:
s301, the user terminal searches for the printing module within the matching distance range through WIFI and/or Bluetooth;
s302, the user terminal displays the list of the searched printing modules, and the display module of the user terminal acquires the printer selected by the user through the list of the printing modules.
S303, the user terminal and the printing module construct the binding state between the product serial number of the user terminal and the product serial number of the printing module.
However, the parallel voltage acquisition sub-modules and the current detection modules connected in a mutual inductance manner divide and shunt the voltage of the elevator traction machine of the elevator, so that the actual power of the elevator traction machine fluctuates, the operation of the elevator traction machine is unstable, the elevator car is unstable, and even serious accidents occur. Therefore, how to reduce the partial pressure and the shunt flow of the power detection module is a problem to be solved urgently.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides an elevator balance coefficient detection device which characterized in that: comprises a power detection module (10) for detecting the power of the elevator traction machine (31); and the user terminal (20) is connected with the power detection module (10) and outputs an elevator balance coefficient q according to the power of the elevator traction machine through the following formula:
;
wherein,
q is an elevator balance coefficient;
q is a rated load;
g is the acceleration of gravity;
NX is the idle downlink power of the car (32);
NS is the idle up power of the cage (32);
v is the rated speed of the running of the car (32) or the counterweight (33);
the power detection module (10) comprises a current acquisition submodule (11) and a voltage acquisition submodule
(12) The current acquisition submodule (11) and a live wire of a power line of the elevator traction machine (31) acquire a current signal in a mutual inductance mode, and the voltage acquisition submodule (12) and the power line of the elevator traction machine (31) are connected in parallel to acquire a voltage signal;
the user terminal (20) further comprises a display module, and the user terminal (20) draws a dynamic graph by taking the elevator balance coefficient q as an abscissa and time as an ordinate and outputs the dynamic graph to the display module;
the power detection module comprises
A conversion module comprising a conversion switch that converts 20 between a first loop in which current flows through both the voltage acquisition submodule and the current acquisition submodule to enable power acquisition and a second loop in which current to the voltage acquisition submodule is interrupted and current flows through a backup path to backup the current acquisition submodule to stop power acquisition; and
a processing module coupled to the transfer switch, performing control for transferring to the first loop when power acquisition is to be performed, and control for transferring to the second loop when power acquisition is not to be performed, and controlling the power of the power supply voltage according to the detected power value of the power detection module.
2. The elevator balance coefficient detecting device according to claim 1, wherein: an output side of the current collection submodule is connected to one terminal of the load, an input side of the voltage collection submodule is connected to the other terminal of the load, and the changeover switch is configured such that the common contact is connected to the output side of the current collection submodule, the first contact is connected to the input side of the current collection submodule, and the second contact is connected to the other input side of the voltage collection submodule, a second loop is formed when an electrical connection between the common contact and the first contact is established, wherein a backup path is formed and a current to the voltage collection submodule is interrupted, and
when the electrical connection between the common contact and the second contact is established, a first circuit is formed in which a connection body formed by the voltage detection unit and the load connected in parallel to each other is connected to the current detection unit, and a current flows through both the voltage detection unit and the current detection unit to enable power detection.
3. The elevator balance coefficient detecting device according to claim 2, wherein: the current acquisition submodule comprises a first magnetic field sensor, a second magnetic field sensor, a wireless communication module and
the elevator traction machine comprises a server, a first magnetic field sensor, a second magnetic field sensor, a power line of the elevator traction machine, a first magnetic field sensor, a second magnetic field sensor and a wireless communication module, wherein the positive pole of the first magnetic field sensor is connected with the power line, the negative pole of the first magnetic field sensor is connected with the server through the wireless communication module, the negative pole of the second magnetic field sensor is connected;
the server comprises a primary server and two final-stage servers, the two final-stage servers are connected to form a final-stage server cluster, the primary server is the primary server cluster, the primary server cluster is connected with the final-stage server cluster, the primary server cluster is connected with the first magnetic field sensor and the second magnetic field sensor through a wireless communication module, the primary server generates a current signal and transmits the current signal to the final-stage server cluster, the final-stage server cluster is connected with the user terminal, one final-stage server generates a power signal, the other final-stage server controls the power supply to compensate the power consumed by the current collection submodule according to the power signal, and the power consumed by the current collection submodule is as follows: the difference between the power detected by the power supply itself and the power of the power signal.
4. The elevator balance coefficient detecting device according to claim 2, wherein: what is needed is
The voltage acquisition submodule comprises a first magnetic field sensor, a second magnetic field sensor, a wireless communication module and a server, the conductivity types, carrier concentrations and carrier mobility of power lines of elevator traction machines of the first magnetic field sensor and the second magnetic field sensor are respectively higher than those of the power lines of the elevator traction machines of the elevator;
the server comprises a primary server and two final-stage servers, the two final-stage servers are connected to form a final-stage server cluster, the primary server is the primary server cluster, the primary server cluster is connected with the final-stage server cluster, the primary server cluster is connected with the first magnetic field sensor and the second magnetic field sensor through a wireless communication module, the primary server generates voltage signals and transmits the voltage signals to the final-stage server cluster, the final-stage server cluster is connected with the user terminal, one final-stage server generates power signals, the other final-stage server controls power consumed by a power supply compensation voltage acquisition submodule according to the power signals, and the power consumed by the voltage acquisition submodule is as follows: the difference between the power detected by the power supply itself and the power of the power signal.
5. The elevator balance coefficient detecting device according to any one of claims 1 to 4, wherein: the user terminal is one or more of the following combinations:
smart phones, computers, smart tablets, smart watches.
6. The method for detecting the balance coefficient of the elevator as set forth in claim 5, wherein the user terminal (20) further comprises a printing module, the printing module is connected with the user terminal in a clamping manner, and the printing process of the printing module comprises the following steps:
s100, generating a dynamic graph by a user terminal; s200, detecting that the printing module is in a matching state and a ready state by the user terminal, if the matching state and the ready state are both satisfied, continuing to S400, and if the matching state and the ready state are not both satisfied, skipping to S300; s300, after 15 seconds, executing the following steps once, if the following steps are successfully executed, jumping to S400,
if the following steps are failed to be executed, the following steps are repeatedly executed after 15 seconds; the user terminal (20) transmits the user terminal to the printing module in NFC and/or Bluetooth mode
The printing module sends the product serial number of the printing module to the user terminal in an NFC and/or Bluetooth mode, and the user terminal and the printing module construct a binding state between the product serial number of the user terminal and the product serial number of the printing module;
s400, between the user terminal in the binding state and the printing module, the user terminal sends the dynamic graph to the printing module for printing.
7. The method of using an elevator balance factor detection device of claim 6, wherein the steps are performed in the same manner as described above
S300 further includes the steps of:
s301, the user terminal searches for the printing module within the matching distance range through WIFI and/or Bluetooth;
s302, the user terminal displays the list of the searched printing modules, and the display module of the user terminal acquires the printer selected by the user through the list of the printing modules;
s303, the user terminal and the printing module construct a binding state between the product serial number of the user terminal and the product serial number of the printing module;
the current acquisition submodule (11) acquires a current signal of a power line of the elevator traction machine (31) through a mutual inductance type signal acquisition terminal;
the user terminal (20) further comprises a key module (13), a power supply module (14) and an operation module
(15) The operation module (15) is used for outputting the data acquired by the power detection module (10) through the elevator balance coefficient q in a formula mode, the key module (13) adopts mechanical or electronic keys to input elevator related data, and the power supply module (14) adopts a 220V voltage transformation power taking or battery power supply mode.
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| CN105905724B (en) * | 2016-06-16 | 2018-04-06 | 广州广日电梯工业有限公司 | The detection method and its detection means of a kind of balance coefficient of elevator |
| CN106226066B (en) * | 2016-09-23 | 2018-08-17 | 驻马店市永恒电梯有限公司 | A kind of calibration method of tracking-driven elevator coefficient of balance detector |
| CN107176520B (en) * | 2017-05-22 | 2019-09-10 | 杭州职业技术学院 | A kind of the no-load measuring device and method of balance coefficient of elevator |
| CN113830637B (en) * | 2021-10-13 | 2023-04-11 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Method for detecting balance coefficient of synchronous main machine elevator |
| CN116780815B (en) * | 2023-05-25 | 2024-03-22 | 浙江弗尔德驱动科技有限公司 | Permanent magnet efficient energy-saving semi-direct-drive motor for reforming ladder and operation method |
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| JP2004099303A (en) * | 2002-09-12 | 2004-04-02 | Mitsubishi Electric Building Techno Service Co Ltd | Adjusting method for balance device of elevator |
| CN101226096A (en) * | 2008-02-02 | 2008-07-23 | 王健 | Method for measuring torsion of elevator balancing coefficient as well as test device thereof |
| CN102583121A (en) * | 2012-01-19 | 2012-07-18 | 李典伟 | Method for testing elevator balance coefficient by aid of elevator handwheel |
| CN102674102B (en) * | 2012-05-22 | 2014-12-03 | 天津豪雅科技发展有限公司 | Detector for elevator balance coefficient |
| CN103145015B (en) * | 2013-01-30 | 2015-09-30 | 深圳市海浦蒙特科技有限公司 | The method of inspection of balance coefficient of elevator |
| CN105060048B (en) * | 2015-07-13 | 2017-04-05 | 河北工业大学 | The detection method and detector of permanent-magnet synchronous towed elevator coefficient of balance |
| CN105173946A (en) * | 2015-10-12 | 2015-12-23 | 刘培 | Elevator no-load dynamic balance coefficient detector |
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