CN106226625B - Automatic diagnosis device for electric system of tower crane and use method thereof - Google Patents
Automatic diagnosis device for electric system of tower crane and use method thereof Download PDFInfo
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- CN106226625B CN106226625B CN201610626237.XA CN201610626237A CN106226625B CN 106226625 B CN106226625 B CN 106226625B CN 201610626237 A CN201610626237 A CN 201610626237A CN 106226625 B CN106226625 B CN 106226625B
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- phase sequence
- voltage signal
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- voltage signals
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003745 diagnosis Methods 0.000 title claims abstract description 13
- 238000000819 phase cycle Methods 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 230000000007 visual effect Effects 0.000 claims abstract description 28
- 238000013024 troubleshooting Methods 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses an automatic diagnosis device for a tower crane electric system, which is technically characterized by comprising a programmable controller, a phase sequence detection element, a relay, an indicator lamp, an audible and visual alarm, an early warning electric bell and a touch screen, wherein the tower crane electric system transmits a phase sequence voltage signal and a control voltage signal, the phase sequence detection element receives the phase sequence voltage signal and part of the control voltage signal, the phase sequence detection element transmits the received phase sequence voltage signal and control voltage signal to the programmable controller, the programmable controller processes the phase sequence voltage signal and all the control voltage signals and generates a control signal for controlling the indicator lamp, the audible and visual alarm and the early warning electric bell, and the relay is an intermediate execution element for the control signal of the programmable controller, so that the automatic diagnosis device achieves the advantages of simplicity, practicability and reliable performance, and solves the problem that the tower crane has potential safety hazards caused by incapability of finding problems in the process of factory detection and debugging.
Description
Technical Field
The invention relates to the field of tower crane type cranes, in particular to an automatic diagnosis device for an electric system of a tower crane.
Background
At present, most tower crane electrical systems adopt a debugging method for directly observing contactor action combinations and measuring output voltage by a universal meter. Some faults of the reverse connection of the motor main loop cannot be eliminated, the motor main loop is checked by a method of connecting the motors of all mechanisms, the operation wiring is complex, the time consumption is high, and two persons are required to cooperate at the same time to realize the operation; in addition, the error and leakage frequently occur in the manual detection: phase failure, incorrect contactor operation, etc. Once the wiring error of the main circuit board surface of the motor is not eliminated, the motor is driven by a tower motor to be wrong, and the motor is burnt off seriously, so that a safety accident occurs.
Disclosure of Invention
The invention aims to provide a device which is simple, practical and reliable in performance, and can effectively and automatically diagnose the faults of the electric system of the tower crane during the factory detection so as to solve the potential safety hazard of the tower crane caused by the fact that problems cannot be found in the process of the factory detection and debugging.
The invention solves the technical problems by adopting the technical scheme that: the utility model provides a tower machine electrical system automatic diagnosis device, includes programmable controller, phase sequence detecting element, relay, pilot lamp, audible and visual alarm, early warning bell and the touch-sensitive screen that is used for showing the trouble content, tower machine electrical system sends phase sequence voltage signal and control voltage signal, and control voltage signal partly sends to phase sequence detecting element, and another part directly sends to programmable controller, phase sequence detecting element receives phase sequence voltage signal and partial control voltage signal, phase sequence detecting element sends phase sequence voltage signal and the control voltage signal that receive to programmable controller, and programmable controller produces the control signal that is used for controlling pilot lamp, audible and visual alarm and early warning bell after processing phase sequence voltage signal and all control voltage signal, the relay is the intermediate actuating element of programmable controller control signal.
By adopting the technical scheme, the tower crane electric system sends the phase sequence voltage signal and part of the control voltage signal to the phase sequence detection element, the other part of the control voltage signal is directly sent to the programmable controller, the phase sequence detection element receives the phase sequence voltage signal and the control voltage signal and sends the phase sequence voltage signal and the control voltage signal to the programmable controller, the programmable controller processes the phase sequence voltage signal and all the control voltage signals and then generates control signals for controlling the indicator lamp, the audible and visual alarm and the early warning bell, if the phase sequence voltage signal, the control voltage signal and the action logic are correct, the indicator lamp corresponding to the action is on, and meanwhile, the audible and visual alarm sounds, if the phase sequence voltage signal, the control voltage signal and the action logic are incorrect, the indication lamp corresponding to the action is not on, the audible and visual alarm is not loud, the relay is electrified, the early warning bell alarm is controlled, the programmable controller can diagnose different faults and output different early warning bell alarm sounds, different alarm contents can be displayed on the touch screen and alarm records are stored, debugging personnel can check the faults according to the action indication lamp and the display fault contents of the touch screen after hearing the alarm sounds, the information is acquired and processed through the programmable controller, the faults are automatically diagnosed, the overvoltage, the undervoltage, the fault phase interruption, some combined faults and the like can be checked, different faults are distinguished, and the result is accurate, quick, reliable and intelligent.
Preferably, the display screen is controlled by a programmable controller, and different alarm contents are displayed on the touch screen and alarm records are stored.
By adopting the technical scheme, the electric system fault checking device is more convenient to check the faults of the electric system of the tower crane.
Preferably, a universal roller is arranged at the bottom of the detection device.
By adopting the technical scheme, the mobile storage device can be moved and stored conveniently.
The application method of the automatic diagnosis device of the electric system of the tower crane comprises the following steps: (1) Connecting the tower crane electrical system with an automatic diagnosis device, and then closing a circuit breaker; (2) The tower crane electric system sends phase sequence voltage signals and part of control voltage signals to the phase sequence detection element, and the other part of control voltage signals are directly sent to the programmable controller; (3) The phase sequence detection element receives the phase sequence voltage signal and the control voltage signal and sends the signals to the programmable controller; (4) The programmable controller processes the phase sequence voltage signals and all control voltage signals and then generates control signals for controlling the indicator lamp, the audible and visual alarm and the early warning bell; (5) If the phase sequence voltage signal, the control voltage signal and the action logic are correct, the indication lamp corresponding to the action is on, and meanwhile, the audible and visual alarm sounds; (6) If the phase sequence voltage signal, the control voltage signal and the action logic are incorrect, the indication lamp corresponding to the action is not lightened, the audible and visual alarm is not sounded, the relay is electrified, the early warning bell is controlled to alarm, and the programmable controller can diagnose different faults and output different early warning bell alarm sounds; (7) Different alarm contents are displayed on the touch screen and alarm records are stored; (8) And after the debugging personnel hear the alarm sound, troubleshooting the faults according to the action indicator lamp and the display fault content of the touch screen. .
The beneficial effects of the invention are as follows: the information is collected and processed through the programmable controller, the fault is automatically diagnosed, overvoltage, undervoltage, phase failure, some combined faults and the like can be detected, different faults are also distinguished by different alarm bell sounds, the result is accurate, fast, reliable and intelligent, the important faults are provided with corresponding indication lamps for prompting, and meanwhile, an audible and visual alarm and an early warning bell are provided for prompting debugging personnel, so that the debugging personnel can debug the faults more intuitively and conveniently, the false detection and missing detection caused by the human factors are reduced to the greatest extent, the debugging of all projects can be completed by only one person, and the quick assembly wiring of connectors is adopted, so that the debugging is faster and more accurate. Meanwhile, the touch screen can store faults in the debugging process, and the derived data can be used for checking the production quality of staff.
Drawings
FIG. 1 is a schematic illustration of the electrical control principle of an automatic diagnostic device for a tower crane electrical system according to the present invention;
FIG. 2 is a schematic diagram of the electrical control principle of an automatic diagnostic device for a tower crane electrical system according to the present invention;
FIG. 3 is a schematic illustration of the electrical control principle of an automatic diagnostic device for a tower crane electrical system according to the present invention;
FIG. 4 is a schematic view of an automatic diagnostic device for a tower crane electrical system according to the present invention;
FIG. 5 is a schematic diagram of a tower crane electrical system automatic diagnostic device according to the present invention;
fig. 6 is a schematic diagram of an automatic diagnostic device for a tower crane electrical system according to the present invention.
In the figure: 1. a phase sequence detecting element; 2. a programmable controller; 3. a circuit breaker; 4. a relay; 5. an indicator light; 6. an audible and visual alarm; 7. early warning bell; 8. a touch screen; 9. and a universal roller.
Detailed Description
Referring to fig. 1 to 6, an automatic diagnostic device for a tower crane electrical system implemented in this case includes a programmable controller 2, a phase sequence detecting element 1, a relay 4, an indicator 5, an audible and visual alarm 7, an early warning bell, and a touch screen 8 for displaying fault contents, wherein the tower crane electrical system sends a phase sequence voltage signal and a control voltage signal, a part of the control voltage signal is sent to the phase sequence detecting element 1, the other part is directly sent to the programmable controller 2, the phase sequence detecting element 1 receives the phase sequence voltage signal and a part of the control voltage signal, the phase sequence detecting element 1 sends the received phase sequence voltage signal and the control voltage signal to the programmable controller 2, the programmable controller 2 processes the phase sequence voltage signal and all the control voltage signal and generates a control signal for controlling the indicator 5, the audible and visual alarm 7, and the bell, the relay 4 is used for controlling the opening and closing of the programmable controller 2 and the phase sequence detecting element 1, the display screen is controlled by the programmable controller 2, and the touch screen is provided with a universal alarm device 9 for recording the bottom of the detected alarm.
The electric system of the tower crane is connected with an automatic diagnosis device, then a circuit breaker 3 is closed, the electric system of the tower crane sends a phase sequence voltage signal and a part of control voltage signal to a phase sequence detection element 1, the other part of control voltage signal is directly sent to a programmable controller 2, the phase sequence detection element 1 receives the phase sequence voltage signal and the control voltage signal and sends the phase sequence voltage signal and the control voltage signal to the programmable controller 2, the programmable controller 2 processes the phase sequence voltage signal and all the control voltage signal and generates control signals for controlling an indicator lamp 5, an audible and visual alarm 7 and an early warning bell, if the phase sequence voltage signal, the control voltage signal and action logic are correct, the indicator lamp 5 corresponding to the action is on, the audible and visual alarm 7 rings, if the phase sequence voltage signal, the control voltage signal and the action logic are incorrect, the indicator lamp 5 corresponding to the action is not on, the audible and visual alarm 7 does not respond, the relay 4 is electrified, the programmable controller 2 diagnoses different early warning bell alarms, different alarm sounds are output, different alarm sounds are displayed on a touch screen 8, and the touch screen 8 is debugged according to the alarm content, and the alarm content is displayed by the touch screen is debugged, and the alarm signal is displayed.
The application method of the automatic diagnosis device of the electric system of the tower crane comprises the following steps: (1) Connecting the tower crane electrical system with an automatic diagnostic device, and then closing the circuit breaker 3; (2) The tower crane electric system sends phase sequence voltage signals and part of control voltage signals to the phase sequence detection element 1, and the other part of control voltage signals are directly sent to the programmable controller 2; (3) The phase sequence detection element 1 receives a phase sequence voltage signal and a control voltage signal and sends the signals to the programmable controller 2; (4) The programmable controller 2 processes the phase sequence voltage signal and all control voltage signals and then generates control signals for controlling the indicator lamp 5, the audible and visual alarm 7 and the early warning bell; (5) If the phase sequence voltage signal, the control voltage signal and the action logic are all correct, the corresponding action indicator lamp 5 is on, and the audible and visual alarm 7 sounds; (6) If the phase sequence voltage signal, the control voltage signal and the action logic are incorrect, the indication lamp 5 corresponding to the action is not lightened, the audible and visual alarm 7 does not sound, the relay 4 is electrified, the early warning bell is controlled to alarm, and the programmable controller 2 can diagnose different faults and output different early warning bell alarm sounds; (7) Different alarm contents are displayed on the touch screen 8 and alarm records are stored; (8) After hearing the alarm, the debugger checks the fault according to the fault content displayed by the action indicator lamp 5 and the touch screen 8.
The programmable controller 2 is adopted to collect signals sent by the phase sequence detection element 1, and data processing and comparison are carried out to judge whether faults such as phase failure, overvoltage and undervoltage exist in the electrical system or not; the programmable controller 2 collects the action logic of the contactor of the electric system, and performs data processing and comparison to judge whether the electric system of the tower crane acts correctly or not and accords with the action logic.
The 485 bus communication technology is adopted to realize the communication between the programmable controller and the touch screen 8, data exchange is carried out, the touch screen 8 can save and archive faults of single equipment, data can be exported and analyzed through the USB, and meanwhile, the touch screen can display all faults in the factory detection process in real time through images and texts.
The bottom of the detection device is provided with 4 universal rollers 9, so that the detection device can be moved and stored conveniently.
The detection device is connected with the electrical system by adopting the misplug-preventing quick-mounting aviation connector, so that the quick and convenient misplug prevention is realized.
The indicator lamp 5 and the audible and visual alarm 7 are respectively connected with the output end of the programmable controller 2, when the programmable controller 2 diagnoses that the corresponding action is correct, the indicator lamp 5 corresponding to the action is on, meanwhile, the audible and visual alarm 7 can give out sound to prompt debugging personnel that the action is correct, when the programmable controller 2 diagnoses that the action is incorrect, the lamp corresponding to the fault action is not on, meanwhile, the early warning bell can sound to prompt the debugging personnel that the action is incorrect, the debugging personnel only needs to check which action of the indicator lamp 5 is not on, the operator is prompted to check the fault of the action, the key fault is prompted by the indicator lamp 5 and the audible and visual alarm 7, and other contactor action logic faults and combined faults are displayed by the touch screen 8.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (2)
1. An automatic diagnosis device for an electric system of a tower crane is characterized in that: the intelligent control system comprises a programmable controller, a phase sequence detection element, a relay, an indicator lamp, an audible and visual alarm, an early warning bell and a touch screen for displaying fault contents, wherein the electric system of the tower crane sends phase sequence voltage signals and control voltage signals, one part of the control voltage signals are sent to the phase sequence detection element, the other part of the control voltage signals are directly sent to the programmable controller, the phase sequence detection element receives the phase sequence voltage signals and part of the control voltage signals, the phase sequence detection element sends the received phase sequence voltage signals and control voltage signals to the programmable controller, the programmable controller processes the phase sequence voltage signals and all the control voltage signals and then generates control signals for controlling the indicator lamp, the audible and visual alarm and the early warning bell, the relay is an intermediate execution element for controlling the signals of the programmable controller, the touch screen is controlled by the programmable controller, different alarm contents are displayed on the touch screen and alarm records are stored, and a universal roller is arranged at the bottom of the diagnostic device.
2. The application method of the automatic diagnosis device of the electric system of the tower crane is characterized by comprising the following steps of: the method comprises the following steps:
(1) Connecting the tower crane electrical system with an automatic diagnosis device, and then closing a circuit breaker;
(2) The tower crane electric system sends phase sequence voltage signals and part of control voltage signals to the phase sequence detection element, and the other part of control voltage signals are directly sent to the programmable controller;
(3) The phase sequence detection element receives the phase sequence voltage signal and the control voltage signal and sends the signals to the programmable controller;
(4) The programmable controller processes the phase sequence voltage signals and all control voltage signals and then generates control signals for controlling the indicator lamp, the audible and visual alarm and the early warning bell;
(5) If the phase sequence voltage signal, the control voltage signal and the action logic are correct, the indication lamp corresponding to the action is on, and meanwhile, the audible and visual alarm sounds;
(6) If the phase sequence voltage signal, the control voltage signal and the action logic are incorrect, the indication lamp corresponding to the action is not lightened, the audible and visual alarm is not sounded, the relay is electrified, the early warning bell is controlled to alarm, and the programmable controller can diagnose different faults and output different early warning bell alarm sounds;
(7) Different alarm contents are displayed on the touch screen and alarm records are stored;
(8) And after the debugging personnel hear the alarm sound, troubleshooting the faults according to the action indicator lamp and the display fault content of the touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626237.XA CN106226625B (en) | 2016-08-02 | 2016-08-02 | Automatic diagnosis device for electric system of tower crane and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610626237.XA CN106226625B (en) | 2016-08-02 | 2016-08-02 | Automatic diagnosis device for electric system of tower crane and use method thereof |
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| CN106226625A CN106226625A (en) | 2016-12-14 |
| CN106226625B true CN106226625B (en) | 2023-10-31 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107357285A (en) * | 2017-08-30 | 2017-11-17 | 湘潭电机股份有限公司 | A kind of Wind turbines column foot switch board inspects device |
| CN110589695A (en) * | 2019-09-11 | 2019-12-20 | 广州力环工程科技有限公司 | Tower crane self-checking system |
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