CN111302198A - Container single-container lifting appliance twist lock control method - Google Patents
Container single-container lifting appliance twist lock control method Download PDFInfo
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- CN111302198A CN111302198A CN202010130084.6A CN202010130084A CN111302198A CN 111302198 A CN111302198 A CN 111302198A CN 202010130084 A CN202010130084 A CN 202010130084A CN 111302198 A CN111302198 A CN 111302198A
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- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000012544 monitoring process Methods 0.000 claims abstract description 235
- 230000002159 abnormal effect Effects 0.000 claims abstract description 27
- 230000001360 synchronised effect Effects 0.000 claims description 28
- 230000009471 action Effects 0.000 claims description 14
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/101—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
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- Engineering & Computer Science (AREA)
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Abstract
The invention provides a container single-container lifting appliance twist lock control method, which comprises the following steps: detecting a state switch in a monitoring module when a spin lock control system is started, regarding the monitoring module with the switch in an ON position as a first monitoring module, and regarding a state inductor corresponding to the first monitoring module as a first state inductor; the second monitoring module judges the theoretical working condition of the second state sensor through a second judging method, and simultaneously judges whether the second state sensor has an abnormal condition or not through a third judging method; the third monitoring module judges the theoretical working condition of the third state sensor through a fourth judging method; meanwhile, the third monitoring module judges whether the third state sensor has an abnormal condition or not through a fifth judgment method; and the first monitoring module judges the theoretical working condition of the first state sensor through a sixth judgment method, and repeats the steps at the same time, so as to finally realize the cycle control of the spin lock.
Description
Technical Field
The invention relates to the technical field of detection of a rotary lock state of a lifting appliance, in particular to a rotary lock control method of a single container lifting appliance.
Background
At present, the state detection methods of most container spreader twist locks are that the left side and the right side are separately detected, and the inductors of the front twist lock and the rear twist lock on each side are connected in series, so that when the front inductor (travel switch) fails or fails due to other electrical and mechanical reasons, misjudgment can occur, and further the occurrence of mechanical damage accidents is caused.
Disclosure of Invention
The invention aims to provide a container single-container spreader twist-lock control method to solve the problems in the background technology.
The invention is realized by the following technical scheme: the container single-container spreader twist-lock control method comprises the following steps:
s1, detecting a state switch inside the monitoring module when the spin lock control system is started, regarding the monitoring module with the switch in the ON position as a first monitoring module, and regarding a state inductor corresponding to the first monitoring module as a first state inductor;
according to a preset logical relationship, the twist lock control system sets the monitoring module having the logical relationship with the first monitoring module as a second monitoring module and a third monitoring module respectively, sets the state inductor corresponding to the second monitoring module as a second state inductor, and sets the state inductor corresponding to the third monitoring module as a third state inductor;
s2, the first monitoring module judges whether the first state sensor has abnormal conditions through a first judgment method, and if the first state sensor has no abnormal conditions, the spin lock control system sends a control instruction to a spin lock;
s3, the second monitoring module judges the theoretical working condition of the second state sensor through a second judging method, and simultaneously the second monitoring module judges whether the second state sensor has an abnormal condition through a third judging method;
s4, if the working state of the second state sensor is normal and no abnormal condition exists, the spin lock control system sends a control instruction to the spin lock;
s5, the third monitoring module judges the theoretical working condition of the third state sensor through a fourth judging method; meanwhile, the third monitoring module judges whether the third state sensor has an abnormal condition or not through a fifth judgment method;
s6, if the working state of the second state sensor is normal and no abnormal condition exists, the spin lock control system sends a control instruction to the spin lock;
s7, the first monitoring module outputs a control command to the spin lock control system through one of the first determination method, the sixth determination method and the seventh determination method, and repeats the steps S3-S7 at the same time, and finally realizes the circular control of the spin lock.
Preferably, the first determination method includes:
if the first monitoring module monitors that the first state sensor outputs an ON signal, the first monitoring module sends a synchronous control signal to the spin lock control system;
meanwhile, the first monitoring module sends operation permission signals to the second monitoring module and the third monitoring module respectively, the second monitoring module and the third monitoring module send synchronous control signals to the spin lock control system, and the spin lock control system allows subsequent operation after receiving the stable state signals.
Preferably, the second determination method includes:
if the second monitoring module detects the operation permission signal from the first monitoring module, the second monitoring module judges that the second state sensor is in a non-working state, otherwise, the second state sensor is in a working state.
Preferably, the third determination method includes:
if the second state sensor is in a non-working state, the second monitoring module monitors that any second state sensor does not output an OFF signal in unit time, and the second monitoring module outputs a synchronous closed-loop/OFF signal to the spin lock control system;
the second monitoring module outputs trigger signals to the first monitoring module and the third monitoring module respectively, the first monitoring module and the third monitoring module output synchronous closed-loop/off signals to the spin lock control system under the action of the trigger signals, and the spin lock control system receives the synchronous signals of the first monitoring module, the second monitoring module and the third monitoring module, judges that the second state sensor has abnormal conditions and triggers alarm at the same time;
if the second state sensor is in a working state, the second monitoring module monitors that any second state sensor does not output an ON signal in unit time, and the second monitoring module outputs an alternative closed-loop/off signal to the spin lock control system;
if the second state sensor still does not output an ON signal at the same time in the next unit time, the second monitoring module outputs a trigger signal to the first monitoring module and the third monitoring module respectively, the first monitoring module and the third monitoring module also output an alternative closed-loop/off signal to the spin lock control system under the action of the trigger signal, and the spin lock control system triggers an alarm after receiving the alternative closed-loop/off signals of the first monitoring module, the second monitoring module and the third monitoring module.
Preferably, the fourth determination method includes:
if the third monitoring module detects the state signal from the second monitoring module, the third monitoring module judges that the third state sensor is in a non-working state, otherwise, the third state sensor is in a working state.
Preferably, the fifth determination method includes:
if the third state sensor is in a non-working state, the third monitoring module monitors that any third state sensor does not output an OFF signal in unit time, and the third monitoring module outputs a synchronous closed-loop/OFF signal to the spin lock control system;
the third monitoring module outputs trigger signals to the first monitoring module and the second monitoring module respectively, the first monitoring module and the second monitoring module also output synchronous closed-loop/disconnection signals to the spin lock control system under the action of the trigger signals, and the spin lock control system receives the synchronous closed-loop/disconnection signals of the first monitoring module, the second monitoring module and the spin lock control system, judges that the third state sensor has abnormal conditions and triggers an alarm at the same time;
if the third state sensor is in a working state, the third monitoring module monitors that any third state sensor does not output an ON signal in unit time, and the third monitoring module outputs an alternative closed-loop/off signal to the spin lock control system;
if the third state sensor still does not output an ON signal at the same time in the next unit time, the third monitoring module outputs a trigger signal to the first monitoring module and the second monitoring module respectively, the first monitoring module and the second monitoring module also output a closed-loop/off signal to the spin lock control system at the same time under the action of the trigger signal, and the spin lock control system triggers an alarm after receiving the closed-loop/off signals of the first monitoring module, the second monitoring module and the spin lock control system.
Preferably, the sixth determination method includes:
if the first monitoring module monitors that the first state sensor outputs an OFF signal, the first monitoring module sends a synchronous closed-loop/disconnected control signal to the spin lock control system to allow subsequent operation;
the first monitoring module also sends operation prohibition signals to the second monitoring module and the third monitoring module respectively, and the alarm of the spin lock control system is triggered when the working states of the second monitoring module and the third monitoring module are changed.
Preferably, the seventh judging method includes:
if the first monitoring module monitors that the first state sensor does not output the same ON signal or OFF signal in unit time, the first monitoring module outputs an alternative closed-loop/open-loop signal to the spin lock control system.
Compared with the prior art, the invention has the following beneficial effects:
the container single-box lifting appliance twist lock detection method provided by the invention can realize intelligent detection/control of the lifting appliance twist lock state. The locking, unlocking and locking states of the twist lock can realize mutual confirmation and state interlocking. The working states of the four twist locks are detected in a centralized manner, so that synchronous operation can be achieved. And the mechanical faults in the action process of the relay contact are reduced due to the all-solid-state design. The improvement of a control circuit of the existing container single-box lifting appliance is facilitated; the abnormal detection of the actions of the working process and the non-working process of the lifting appliance in the twist-lock state can be realized under the condition that the PLC program, the lifting appliance cable and the lifting appliance structure of the existing upper computer are not changed, and the aims of overtime operation reminding and alarming are fulfilled.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flow chart of a container single-container spreader twist-lock control method provided by the invention.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Referring to fig. 1, the embodiment provides a method for controlling the twist lock of a single container spreader, which specifically includes the following steps:
s1, detecting a state switch inside the monitoring module when the spin lock control system is started, regarding the spin lock detection module outputting an ON signal as a first monitoring module, and regarding a state inductor corresponding to the first monitoring module as a first state inductor;
for convenience of description, according to a preset logical relationship, the twist lock control system sets the monitoring module having a logical relationship with the first monitoring module as a second monitoring module and a third monitoring module respectively, sets the state inductor corresponding to the second monitoring module as a second state inductor, and sets the state inductor corresponding to the third monitoring module as a third state inductor;
it should be noted that the first state sensor, the second state sensor, and the third state sensor can output ON/OFF signals to the corresponding monitoring modules, and when the ON signals are output, it indicates that the corresponding state sensors are in a working state, and when the OFF signals are output, it indicates that the corresponding state sensors are in a non-working state.
S2, the first monitoring module judges whether the first state sensor has abnormal conditions through a first judgment method, and if the first state sensor has no abnormal conditions, the spin lock control system sends a control instruction to a spin lock;
the first judging method comprises the following steps:
when the first monitoring module monitors that the first state sensors all output ON signals, the first monitoring module sends synchronous control signals to the spin lock control system;
and simultaneously, the first monitoring module also sends an operation permission signal to the second monitoring module and the third monitoring module respectively, under the triggering of the signals, the second monitoring module and the third monitoring module send synchronous control signals to the spin lock control system, and the spin lock control system allows subsequent operation after receiving the stable state signals.
S3, the second monitoring module judges the theoretical working condition of the second state sensor through a second judging method, and simultaneously the second monitoring module judges whether the second state sensor has an abnormal condition through a third judging method;
specifically, the second determination method includes:
if the second monitoring module detects the state signal from the first monitoring module, the second monitoring module judges that the second state sensor is in a non-working state, otherwise, the second state sensor is in a working state.
And the third determination method includes:
if the second state sensor is in a working state, the second monitoring module monitors that any second state sensor does not output an ON signal in unit time, the second monitoring module outputs an alternative signal to the spin lock control system, the alternative signal is a closed loop/off signal, and the spin lock control system reminds an operator to take measures;
if the second state sensor still does not output an ON signal at the same time in the next unit time, the second monitoring module outputs a trigger signal to the first monitoring module and the third monitoring module respectively, the first monitoring module and the third monitoring module also output a closed-loop/off signal to the spin lock control system at the same time under the action of the trigger signal, and the spin lock control system triggers an alarm after receiving the closed-loop/off signals of the first monitoring module, the second monitoring module and the third monitoring module.
It should be noted that, when the second state sensor is in a non-working state, the second monitoring module monitors that any one of the second state sensors does not output an OFF signal in a unit time, and the second monitoring module outputs a synchronous opening/closing alternate signal to the spin lock control system;
the second monitoring module outputs trigger signals to the first monitoring module and the third monitoring module respectively, the first monitoring module and the third monitoring module output synchronous opening/closing alternate signals to the spin lock control system under the action of the trigger signals, and the spin lock control system receives the synchronous opening/closing alternate signals of the first monitoring module, the second monitoring module and the third monitoring module, judges that the second state sensor has abnormal conditions and triggers an alarm at the same time.
And S4, if the working state of the second state sensor is normal and no abnormal condition exists, the spin lock control system sends a control instruction to the spin lock to realize the change of the spin lock state.
S5, the third monitoring module judges the theoretical working condition of the third state sensor through a fourth judging method; meanwhile, the third monitoring module judges whether the third state sensor has an abnormal condition or not through a fifth judgment method;
specifically, the fourth determination method is similar to the third determination method, and includes:
if the third monitoring module detects the state signal from the second monitoring module, the third monitoring module judges that the third state sensor is in a non-working state, otherwise, the third state sensor is in a working state.
Similarly, the fifth determination method is similar to the third determination method, and includes:
if the third state sensor is in a working state, the third monitoring module monitors that any third state sensor does not output an ON signal in unit time, the third monitoring module outputs an alternative signal to the spin lock control system, and the spin lock control system reminds an operator to take measures;
if the third state sensor still does not output an ON signal simultaneously in the next unit time, the third monitoring module outputs a trigger signal to the first monitoring module and the second monitoring module respectively, the first monitoring module and the second monitoring module also output an alternative signal to the spin lock control system simultaneously under the action of the trigger signal, and the spin lock control system receives the alternative signal of the first monitoring module, the second monitoring module and the spin lock control system and then triggers an alarm.
It should be noted that:
if the third state sensor is in a non-working state, the third monitoring module monitors that any one third state sensor does not output an OFF signal in unit time, and the third monitoring module outputs a synchronous opening/closing alternate signal to the spin lock control system;
and the third monitoring module outputs trigger signals to the first monitoring module and the second monitoring module respectively, the first monitoring module and the second monitoring module output synchronous opening/closing alternate signals to a spin lock control system under the action of the trigger signals, and the spin lock control system receives the synchronous opening/closing alternate signals of the first monitoring module, the second monitoring module and the spin lock control system, judges that the third state sensor has abnormal conditions and triggers alarm at the same time.
And S6, if the working state of the second state sensor is normal and no abnormal condition exists, the spin lock control system sends a control instruction to the spin lock to realize the change of the spin lock state.
S7, the first monitoring module outputs a control command to the spin lock control system through one of the first determination method, the sixth determination method and the seventh determination method, and repeats the steps S3-S7 at the same time, and finally realizes the circulation control of the spin lock:
the sixth judging method comprises the following steps:
when the first monitoring module monitors that the first state sensors all output OFF signals, the first monitoring module sends synchronous control signals to the spin lock control system to allow subsequent operation;
meanwhile, the first monitoring module also sends operation prohibition signals to the second monitoring module and the third monitoring module respectively. At this time, any change of the working states of the second monitoring module and the third monitoring module can trigger the alarm of the spin lock control system.
The seventh judging method includes: the first monitoring module monitors that the first state sensor does not output the same ON signal or OFF signal in unit time, and outputs alternate signals to the spin lock control system to remind an operator to take measures;
it should be noted that, when the first state sensor, the second state sensor and the third state sensor trigger the spin lock control system to trigger the reminding signal, if the reminding signal is corrected within a unit time, the reminding signal is automatically recovered, and the spin lock control system allows the subsequent operation.
Preferably, when the first state sensor, the second state sensor and the third state sensor trigger the spin lock control system to trigger the alarm signal, the alarm signal disappears only when the system is powered on again after correction.
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, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The container single-container spreader twist-lock control method is characterized by comprising the following steps:
s1, detecting a state switch inside the monitoring module when the spin lock control system is started, regarding the monitoring module with the switch in the ON position as a first monitoring module, and regarding a state inductor corresponding to the first monitoring module as a first state inductor;
according to a preset logical relationship, the twist lock control system sets the monitoring module having the logical relationship with the first monitoring module as a second monitoring module and a third monitoring module respectively, sets the state inductor corresponding to the second monitoring module as a second state inductor, and sets the state inductor corresponding to the third monitoring module as a third state inductor;
s2, the first monitoring module judges whether the first state sensor has abnormal conditions through a first judgment method, and if the first state sensor has no abnormal conditions, the spin lock control system sends a control instruction to a spin lock;
s3, the second monitoring module judges the theoretical working condition of the second state sensor through a second judging method, and simultaneously the second monitoring module judges whether the second state sensor has an abnormal condition through a third judging method;
s4, if the working state of the second state sensor is normal and no abnormal condition exists, the spin lock control system sends a control instruction to the spin lock;
s5, the third monitoring module judges the theoretical working condition of the third state sensor through a fourth judging method; meanwhile, the third monitoring module judges whether the third state sensor has an abnormal condition or not through a fifth judgment method;
s6, if the working state of the second state sensor is normal and no abnormal condition exists, the spin lock control system sends a control instruction to the spin lock;
s7, the first monitoring module outputs a control command to the spin lock control system through one of the first determination method, the sixth determination method and the seventh determination method, and repeats the steps S3-S7 at the same time, and finally realizes the circular control of the spin lock.
2. The method of claim 1, wherein the first determination method comprises:
if the first monitoring module monitors that the first state sensor outputs an ON signal, the first monitoring module sends a synchronous control signal to the spin lock control system;
meanwhile, the first monitoring module sends operation permission signals to the second monitoring module and the third monitoring module respectively, the second monitoring module and the third monitoring module send synchronous control signals to the spin lock control system, and the spin lock control system allows subsequent operation after receiving the stable state signals.
3. The method of controlling the twist-lock of a single container spreader according to claim 2, wherein the second determination method comprises:
if the second monitoring module detects the operation permission signal from the first monitoring module, the second monitoring module judges that the second state sensor is in a non-working state, otherwise, the second state sensor is in a working state.
4. The method of claim 3, wherein the third determination method comprises:
if the second state sensor is in a non-working state, the second monitoring module monitors that any second state sensor does not output an OFF signal in unit time, and the second monitoring module outputs a synchronous closed-loop/OFF signal to the spin lock control system;
the second monitoring module outputs trigger signals to the first monitoring module and the third monitoring module respectively, the first monitoring module and the third monitoring module output synchronous closed-loop/off signals to the spin lock control system under the action of the trigger signals, and the spin lock control system receives the synchronous signals of the first monitoring module, the second monitoring module and the third monitoring module, judges that the second state sensor has abnormal conditions and triggers alarm at the same time;
if the second state sensor is in a working state, the second monitoring module monitors that any second state sensor does not output an ON signal in unit time, and the second monitoring module outputs an alternative closed-loop/off signal to the spin lock control system;
if the second state sensor still does not output an ON signal at the same time in the next unit time, the second monitoring module outputs a trigger signal to the first monitoring module and the third monitoring module respectively, the first monitoring module and the third monitoring module also output an alternative closed-loop/off signal to the spin lock control system under the action of the trigger signal, and the spin lock control system triggers an alarm after receiving the alternative closed-loop/off signals of the first monitoring module, the second monitoring module and the third monitoring module.
5. The method of controlling the twist-lock of a single container spreader according to claim 4, wherein the fourth determination method comprises:
if the third monitoring module detects the state signal from the second monitoring module, the third monitoring module judges that the third state sensor is in a non-working state, otherwise, the third state sensor is in a working state.
6. The method of controlling the twist-lock of a single container spreader according to claim 5, wherein the fifth determination method comprises:
if the third state sensor is in a non-working state, the third monitoring module monitors that any third state sensor does not output an OFF signal in unit time, and the third monitoring module outputs a synchronous closed-loop/OFF signal to the spin lock control system;
the third monitoring module outputs trigger signals to the first monitoring module and the second monitoring module respectively, the first monitoring module and the second monitoring module also output synchronous closed-loop/disconnection signals to the spin lock control system under the action of the trigger signals, and the spin lock control system receives the synchronous closed-loop/disconnection signals of the first monitoring module, the second monitoring module and the spin lock control system, judges that the third state sensor has abnormal conditions and triggers an alarm at the same time;
if the third state sensor is in a working state, the third monitoring module monitors that any third state sensor does not output an ON signal in unit time, and the third monitoring module outputs an alternative closed-loop/off signal to the spin lock control system;
if the third state sensor still does not output an ON signal at the same time in the next unit time, the third monitoring module outputs a trigger signal to the first monitoring module and the second monitoring module respectively, the first monitoring module and the second monitoring module also output a closed-loop/off signal to the spin lock control system at the same time under the action of the trigger signal, and the spin lock control system triggers an alarm after receiving the closed-loop/off signals of the first monitoring module, the second monitoring module and the spin lock control system.
7. The method of controlling the twist-lock of a single container spreader according to claim 6, wherein the sixth determining method comprises:
if the first monitoring module monitors that the first state sensor outputs an OFF signal, the first monitoring module sends a synchronous closed-loop/disconnected control signal to the spin lock control system to allow subsequent operation;
the first monitoring module also sends operation prohibition signals to the second monitoring module and the third monitoring module respectively, and the alarm of the spin lock control system is triggered when the working states of the second monitoring module and the third monitoring module are changed.
8. The method of claim 7, wherein the seventh determination method comprises:
if the first monitoring module monitors that the first state sensor does not output the same ON signal or OFF signal in unit time, the first monitoring module outputs an alternative closed-loop/open-loop signal to the spin lock control system.
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| CN202010130084.6A CN111302198B (en) | 2020-02-28 | 2020-02-28 | Container single-container lifting appliance twist lock control method |
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| CN202010130084.6A CN111302198B (en) | 2020-02-28 | 2020-02-28 | Container single-container lifting appliance twist lock control method |
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| CN106365024A (en) * | 2016-11-01 | 2017-02-01 | 徐州重型机械有限公司 | Container spreader with novel spin lock mechanism |
| CN107500132A (en) * | 2017-09-30 | 2017-12-22 | 徐州重型机械有限公司 | Cycle operation Forecasting Methodology and system, crane and Vehicle Controller |
| CN108100864A (en) * | 2018-01-23 | 2018-06-01 | 蛇口集装箱码头有限公司 | A kind of container spreader rotation lock apparatus for monitoring working state and monitoring method |
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2020
- 2020-02-28 CN CN202010130084.6A patent/CN111302198B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8840355B1 (en) * | 2010-08-16 | 2014-09-23 | The Boeing Company | Automated sling load handler for an aircraft |
| CN204423564U (en) * | 2015-02-09 | 2015-06-24 | 深圳市久通机电有限公司 | A kind of sensor of container warning device |
| CN106365024A (en) * | 2016-11-01 | 2017-02-01 | 徐州重型机械有限公司 | Container spreader with novel spin lock mechanism |
| CN107500132A (en) * | 2017-09-30 | 2017-12-22 | 徐州重型机械有限公司 | Cycle operation Forecasting Methodology and system, crane and Vehicle Controller |
| CN108100864A (en) * | 2018-01-23 | 2018-06-01 | 蛇口集装箱码头有限公司 | A kind of container spreader rotation lock apparatus for monitoring working state and monitoring method |
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