CN111323660A

CN111323660A - Intelligent elevator protection simulation determination system and method

Info

Publication number: CN111323660A
Application number: CN201910847860.1A
Authority: CN
Inventors: 李博; 雷红兵; 曹鑫; 王志平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-06-23

Abstract

The invention belongs to the technical field of elevator performance simulation tests, and discloses an intelligent elevator protection simulation measuring system and method, wherein a winch fault simulation test box comprises: PLC, touch-sensitive screen, power supply, circuit breaker, relay, stainless steel box. The tractor trouble simulation test case includes: PLC, touch-sensitive screen, power supply, circuit breaker, relay, stainless steel box. The simulation test bed comprises: the box body, the box body panel and the touch screen are arranged on the box body; a key switch is arranged on the box body panel; and a 10-inch high-performance touch screen is arranged on the panel of the box body. The invention is convenient for equipment maintenance, carries out detailed recording and display on test items, and ensures that the actuator acts in a real protection way by simulating and manufacturing faults of a protected object, thereby ensuring the safety and reliability of the actuator when the real faults occur; and the protection values of different systems can be set differently, and the picture is simple and visual and is easy to operate.

Description

Intelligent elevator protection simulation determination system and method

Technical Field

The invention belongs to the technical field of elevator performance simulation tests, and particularly relates to an intelligent elevator protection simulation measurement system and method.

Background

The failure rate of the winch is high due to the fact that most of the winches are poor in working environment, complex in working condition, large in winch load and the like, most of the winches in the prior art are processed after failures occur, and irrecoverable life and property losses are caused at the moment. How to correctly and timely process various winch faults in the operation process plays an important role in ensuring the smooth operation and reducing the production cost. Therefore, a test box capable of truly reducing the winch fault is needed, the most suitable solution is found for various faults in advance, and the winch fault is checked and prevented in advance according to the phenomenon before the fault occurs.

The winch regularly needs to be subjected to fault tests, and the prior art has the following problems during the fault tests:

(1) and (3) current test: after a brake is locked by a brake system of the elevator, driving and driving are carried out, and actual current of about 2500A is produced, so that a fault is reported, but the large current can damage a winch system and influence the service life of equipment;

(2) and (3) under-voltage test: the voltage is intervened manually, and for a constant-power device, the current is increased by reducing the voltage, so that damage is caused.

(3) Overspeed test: too fast, jeopardizing safety.

(4) Other tests: or the environment is bad, or the actual measurement is inconvenient, or the resetting is not easy after the action.

The difficulty of solving the technical problems is as follows:

the difficulty lies in how to create virtual faults, so that components are not damaged and are easy to recover, and actual fault output actions are linked.

The significance of solving the technical problems is as follows: the work load of personnel is reduced, the equipment damage is avoided, the service life of the equipment is prolonged, and the safety of the equipment and personnel is ensured.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a system and a method for testing protection simulation of an intelligent elevator.

The invention is realized in this way, a kind of intelligence hoister protects the emulation measuring system, the said intelligence hoister protects the emulation measuring system to include:

the vehicle fault simulation test box is used for realizing vehicle fault simulation test;

the traction machine fault simulation test box is used for realizing traction machine fault simulation test;

and the simulation test bed is connected with the vehicle fault simulation test box and the tractor fault simulation test box through signal lines and is used for realizing the simulation information processing of vehicle faults and tractor faults.

The winch fault simulation test box further comprises: PLC, touch-sensitive screen, power supply, relay, stainless steel box.

The touch screen further includes:

the test picture switching module is used for switching different test pictures;

the parameter configuration module is used for carrying out corresponding setting according to the test value required by the user after the administrator logs in and setting the action time;

and the alarm record query module is used for turning up and down pages of the alarm records and refreshing the alarm records, displaying the number of the current alarms, and recording historical alarm items, alarm time and alarm reset time.

The user tester login module is used for realizing a preset user and inputting a password to finish the login of the user tester;

and the test interface language selection function module is used for realizing interface operation language selection, and the language is Chinese and English operation.

The test picture switching module further comprises: the device comprises a first test picture unit, a second test picture unit and a third test picture unit.

Further, the first test picture unit includes: the device comprises a current test unit, a voltage test unit, a simulation current voltage and a simulation voltage unit;

the second test picture unit includes: the device comprises a deep finger test unit, a too tired test unit, a loose rope test unit and a misdirection test unit;

the third test picture unit includes: the speed testing device comprises a speed testing unit, a speed limit testing unit, a simulation speed unit and a simulation speed limit unit.

Another object of the present invention is to provide an intelligent elevator protection simulation measuring method for executing the intelligent elevator protection simulation measuring system, wherein the intelligent elevator protection simulation measuring method includes the following steps:

firstly, a power supply is switched on when the elevator is at a safe allowable test position, and a change-over switch is placed at an allowable test gear;

secondly, inputting a password to log in, otherwise, only observing an alarm recording picture;

thirdly, after logging in, setting the protection action range and the protection action hysteresis time of each protection;

fourthly, manually changing real-time simulation test data to enable the simulation data to be in a curve form, and the digital data to be displayed on the touch screen in a time-delay connection form, outputting a fault when a limit action value set by parameters is reached, triggering an actuator to be protected to act, and finally enabling the actuator of the lifting equipment to act, alarm or stop;

and fifthly, resetting the fault according to the actual condition after the fault is output, and observing the fault output time, the fault reset time and the fault alarm of the operated fault item on a fault recording picture.

In summary, the advantages and positive effects of the invention are: through the mode of emulation for the actual executive component action of lifting means has avoided making the destructive protection experiment of actual trouble, has both guaranteed the validity of experiment, has also significantly reduced the work load of making the trouble, has still avoided destroying simultaneously, has prolonged lifting means's life.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent elevator protection simulation measurement system according to an embodiment of the present invention;

in the figure: 1. a winch fault simulation test box; 2. a tractor fault simulation test box; 3. and (4) simulating a test bed.

Fig. 2 is a flowchart of a method for determining protection simulation of an intelligent elevator according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a simulation test bed according to an embodiment of the present invention.

Fig. 4 is a schematic frame diagram of an intelligent elevator protection simulation measurement system according to an embodiment of the present invention.

Fig. 5 is a flowchart of an implementation of the method for determining protection simulation of the intelligent elevator according to the embodiment of the present invention.

Fig. 6 is a schematic diagram of an effect of a main menu provided by an embodiment of the present invention.

Fig. 7 is a schematic diagram of a language switching effect according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of the login effect of the tester provided by the embodiment of the present invention.

Fig. 9 is a schematic diagram of the effect of the test picture 1 provided by the embodiment of the present invention.

Fig. 10 is a schematic diagram of the effect of the test picture 2 according to the embodiment of the present invention.

Fig. 11 is a schematic diagram illustrating a parameter setting effect according to an embodiment of the present invention.

Fig. 12 is a schematic diagram of an alarm recording effect provided by the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Aiming at the problems in the prior art, the invention provides an intelligent elevator protection simulation measuring system and method, and the invention is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, an intelligent elevator protection simulation measurement system provided in an embodiment of the present invention includes: the system comprises a winch fault simulation test box 1, a tractor fault simulation test box 2 and a simulation test bed 3.

The vehicle fault simulation test box 1 is used for realizing vehicle fault simulation test.

And the tractor fault simulation test box 2 is used for realizing a tractor fault simulation test.

And the simulation test bed 3 is connected with the vehicle fault simulation test box 1 and the tractor fault simulation test box 2 through signal lines and is used for realizing the simulation information processing of vehicle faults and tractor faults.

The winch fault simulation test box 1 further comprises: PLC, touch-sensitive screen, power supply, circuit breaker, relay, stainless steel box.

All components are installed on the stainless steel box body, and the stainless steel box body has the advantages of firmness, corrosion resistance and the like due to the fact that the mine environment is severe, and the hydraulic support is added, so that the box body can be opened and closed freely, and the maintenance is easy.

The power supply provides 24V power for all components and parts in the box, and the stainless steel box is placed the position and is nearer apart from the operative employee, and for the sake of safety, 24V low-voltage is all chooseed for use to each components and parts in the incasement, avoids appearing the high voltage as far as possible.

The PLC is a core component of the system, converts the requirements of users to the customs requirements into computer languages which can be understood by equipment, realizes logic control and outputs corresponding results.

The touch screen is a man-machine communication window of the equipment, is arranged on the surface of the stainless steel box body, and displays all simulated faults, simulated fault action time, fault display and fault alarm report records for operation, observation and recording of an experimenter.

The relays are final actuating mechanisms of the equipment and correspond to all faults one to one, each simulation fault output by the PLC corresponds to one fixed relay, each relay is correspondingly connected into an actual fault hardware loop of the lifting equipment, and when the relays act, each fault loop of the lifting equipment is communicated, so that the real fault actuating mechanism of the lifting equipment acts, and alarming or braking shutdown is implemented.

A key switch is arranged on a panel of the stainless steel box body, the key switch is a linked logic control switch, the selection of the permission test and the prohibition test is implemented, a selection signal is sent to a logic controller, manual intervention ensures that the full-time test is effective, and when the test is prohibited, an execution mechanism does not act even if a simulation fault on an operation touch screen is considered, so that sudden manual accidents are avoided.

The tractor fault simulation test box 2 further comprises: PLC, touch-sensitive screen, power supply, circuit breaker, relay, stainless steel box.

The simulation test stand 3 further includes: the box, box panel, touch-sensitive screen. The panel of the box body is provided with a key switch.

The simulation test bed 3 adopts a front clamshell structure, so that equipment is convenient to maintain, a 10-inch high-performance touch screen is arranged on a box body panel, detailed records and displays are carried out on test items, different settings can be carried out on protection values of different systems, and the picture is simple, visual and easy to operate. A key switch is arranged on a box body panel, and the key switch can be operated to open a test bed only by corresponding examination and approval management procedures if a mine hoist belongs to special mine equipment and the hoist test is required.

The touch screen further includes: the system comprises a test picture switching module, a parameter configuration module, an alarm record query module, a user tester login module and a test interface language selection function module.

And the test picture switching module is used for switching different test pictures.

And the parameter configuration module is used for carrying out corresponding setting according to the test value required by the user after the administrator logs in and setting the action time.

And the alarm record query module is used for performing page turning up and down and refreshing operations on the alarm records and displaying the current number of the alarms.

And the user tester login module is used for realizing a preset user and inputting a password to finish the login of the user tester.

The first test picture unit includes: the device comprises a current test unit, a voltage test unit, a simulation current voltage and a simulation voltage unit.

The second test picture unit includes: the device comprises a deep finger test unit, a too tired test unit, a loose rope test unit and a misdirection test unit.

As shown in fig. 2, the method for determining protection simulation of an intelligent elevator according to an embodiment of the present invention includes the following steps:

s201: when the hoister is at the safe allowable test position, the power supply is switched on, and the change-over switch is placed at an allowable test gear;

s202: inputting a password to log in, otherwise, only observing an alarm recording picture;

s203: after logging in, setting the protection action range and the protection action hysteresis time of each protection;

s204: manually changing real-time simulation test data to enable the simulation data to be in a curve form, and displaying the digital data on the touch screen in a time-delay connection form, outputting a fault when a limit action value set by a parameter is reached, triggering an actuator to be protected to act, and finally enabling the actuator of the lifting equipment to act, alarm or stop;

s205: after the fault is output, the fault is reset according to the actual condition, and the fault output time, the fault reset time and the fault alarm of the operated fault item are observed on the fault recording picture.

The technical solution of the present invention is further described with reference to the following specific examples.

1. And (3) overcurrent experiment: inputting an overcurrent action value and overcurrent action response time on the touch screen, setting a current rising and falling button, manually adjusting a virtual current value, and reporting an armature overcurrent fault when the virtual current value is greater than the manually input overcurrent action value and the duration time is greater than or equal to the manually set overcurrent action response time.

2. And (3) under-voltage test: inputting an undervoltage action value and undervoltage action response time on the touch screen, setting a voltage rising and falling button, manually adjusting the virtual voltage value, and reporting an undervoltage fault when the virtual voltage value is smaller than the manually input undervoltage action value and the duration time is greater than or equal to the manually set undervoltage action response time.

3. Overspeed test: and inputting an overspeed action value and overspeed action response time on the touch screen, setting speed ascending and descending buttons, manually adjusting a virtual speed value, and reporting an overspeed fault when the virtual speed value is greater than the manually input overspeed action value and the duration time is greater than or equal to the manually set overspeed action response time.

4. Deep finger failure test: and setting the failure action time of the deep finger, manually pressing a deep finger failure button, and reporting the failure of the deep finger when the duration time is more than or equal to the set failure action time of the deep finger.

5. The overtopping test, the rope loosening test and the misorientation test are the same as the deep finger failure setting method and the test method.

6. The safety circuit is cut off in the test actions, and the winch system reports the fault of the safety circuit.

The test interface can be entered only by manually inputting the password, so that the manual tripping in the normal running process of the vehicle is prevented, and the change-over switch with the key is additionally arranged on the box body, so that the logic locking is carried out in the program, and the accident is avoided.

Simulation test bed

The safety performance simulation test method is suitable for the safety performance simulation test of the mine hoist control system. The test bed is developed by adopting a topological structure of a logic controller and a touch screen and optimizing a combined controller, the touch screen and other action components. The device has the characteristics of multiple functions, wide application, safe and reliable operation, attractive appearance, convenience in installation, less occupied land, less maintenance, less investment and the like, can be used as test equipment of the elevator equipment, and can be used for periodically carrying out simulation test on the elevator to ensure the safe and reliable operation of the elevator. The test bed can provide 8 types of elevator protection test tests such as a current test, a voltage test, a speed limit test, a deep finger failure test, an overwinding test, a rope loosening test, a misdirection test and the like for a user, and can store corresponding test records in a touch screen for the user to check.

1. Conditions of use

① altitude, generally not exceeding 2000 m.

② the working temperature is 0 to 40 ℃.

(Special ordering conditions: requiring special customization)

Storage temperature: minus 10 ℃ to plus 60 ℃.

③ relative humidity, mean daily value not greater than 95%, mean daily value not greater than 90%.

④ seismic intensity the horizontal acceleration is not more than 0.3 g.

⑤ there are no frequent severe vibration locations.

⑥ the ambient air should not be significantly contaminated by corrosive or flammable gases, etc.

⑦ the installation inclination does not exceed 3 degrees.

Note: when the use condition is exceeded, the user and the manufacturer negotiate to solve the problem.

2. Technical parameters

2.1 rated voltage:

working voltage: AC220V, 10A

2.2 interface

The test bed provides a normally closed passive switching value contact;

3. brief introduction to the structure

The test bed adopts a front clamshell structure, so that equipment is convenient to maintain, a 10-inch high-performance touch screen is mounted on a box body panel to record and display test items in detail, different settings can be carried out on protection values of different systems, and the test bed is simple and visual in picture and easy to operate.

The panel is provided with a key switch, and the key switch can be operated to open the test bed only by corresponding examination and approval management procedures if a mine hoist is required to be tested, aiming at the mine hoist belonging to special mine equipment.

4. Instructions for installation and use

After the test bed is transported to the destination according to the requirement, the user checks whether the package and the appearance of the test bed are complete and undamaged, and performs the handover procedure. The temporary non-use can be stored in an appropriate place according to the normal use condition.

4.1, installation:

① the test stand is mounted on a pre-prepared base, the test stand is leveled, and the fixing bolts between the base and the test stand are fixed.

② the test stand is installed at a place where it is easy to handle and where it is avoided from having a complicated public facility as much as possible, and is preferably installed in the elevator operating room.

4.2 wiring and preparation before starting up:

① wiring:

A. the test bed can normally work when a user provides AC220V and a 10A power supply, and the connection is carried out according to a randomly provided interface terminal schematic diagram;

B. the test loop is connected to a safety loop of a hoist control system;

note that: and if the test bench is not put into use or is not tested, the normal use of the elevator is ensured not to be influenced.

② general inspection items after installation or maintenance of the test stand before commissioning are as follows:

A. the installed electrical equipment, components and parts are required to meet the requirements of patterns and related technologies;

B. the power circuit wiring and the grounding wire are correct and reliable and meet the corresponding technical requirements;

C. the access of the test line is safe and reliable, and the access point meets the requirement of safe operation of the elevator.

4.3 starting up and testing:

and after the installation wiring is finished and the error is checked, the working power supply is switched on, and switches Q1 and Q2 in the test bed are closed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an intelligence lifting machine protection emulation survey system which characterized in that, intelligence lifting machine protection emulation survey system includes:

2. The intelligent hoist protection simulation test system of claim 1, wherein the winch fault simulation test chamber further comprises: the system comprises a PLC, a touch screen, a power supply, a circuit breaker, a relay and a stainless steel box body;

a key switch is arranged on the box body panel; a 10-inch high-performance touch screen is arranged on a panel of the box body; the PLC, the touch screen, the power supply, the circuit breaker and the relay are installed inside the stainless steel box body, and the power supply provides a 24V power supply for devices in the stainless steel box body;

the PLC is used for realizing logic control and outputting a corresponding result;

the touch screen is arranged on the surface of the stainless steel box body and is used for displaying all simulated faults, simulated fault action time, fault display and fault alarm report records for operation, observation and recording of an experimenter;

the relays are used for corresponding all faults one by one, each simulated fault output by the PLC corresponds to one fixed relay, each relay is correspondingly connected to an actual fault hardware loop of the lifting equipment, and when the relays act, each fault loop of the lifting equipment is communicated, so that a real fault execution mechanism of the lifting equipment acts to implement alarming or brake shutdown;

the panel of the stainless steel box body is provided with a key switch which is a linked logic control switch for implementing the selection of allowing tests and prohibiting tests, and a selection signal is sent to a logic controller.

3. The intelligent elevator protection simulation testing system of claim 1, wherein the touch screen further comprises:

the alarm record query module is used for performing page turning up and down and refreshing operations on the alarm records and displaying the current number of the alarms; recording historical alarm items, alarm time and alarm reset time;

4. The intelligent elevator protection simulation testing system of claim 3, wherein the test frame switching module further comprises: the device comprises a first test picture unit, a second test picture unit and a third test picture unit.

5. The intelligent elevator protection simulation testing system as set forth in claim 4, wherein the first test screen unit comprises: the device comprises a current test unit, a voltage test unit, a simulation current voltage and a simulation voltage unit;

6. An intelligent elevator protection simulation measuring method for executing the intelligent elevator protection simulation measuring system of claim 1, wherein the intelligent elevator protection simulation measuring method comprises the following steps: