CN102963828A - Method and device for health diagnosis and safety monitoring of lifting appliance - Google Patents
Method and device for health diagnosis and safety monitoring of lifting appliance Download PDFInfo
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Abstract
The invention discloses a method and a device for health diagnosis and safety monitoring of lifting appliance, wherein the device comprises a CPU (central processing unit) module, a storage module, an A/D (analogue/digital) module, a keyboard, a display screen, an acousto-optic alarm output module, an obliquity sensor or a speed sensor or/and an acceleration sensor. The method comprises the following steps of: establishing a plurality of health records on the basis of different reference values for the lifting appliance according to a health record establishing step; obtaining a plurality of different monitored values of the lifting appliance according to a step of performing a physical examination at regular time; comparing the monitored values with the corresponding reference values in the same working condition; if the difference between the two values is in a preset error range, indicating that the lifting appliance is in a healthy state and can continue to be used; and if the difference between the two values exceeds the preset error range, indicating that the lifting appliance is in an unhealthy state and needs to be stopped.
Description
Technical field
The present invention relates to elevator machinery, more particularly, relate to a kind of Gernral Check-up and method for safety monitoring and device thereof of construction type lift crane tool.
Background technology
China is in the development phase of Large scale construction at present, and the construction hoisting machinery accident is occupied very high ratio in the construction trade accident.According to statistics, the accident rate of tower crane whenever is only just more than 5 ‰ by China, and the life that causes, property damage are very huge.Study new construction hoisting machinery safety detection, assessment, Gernral Check-up and method for supervising, become the active demand of safety in production.
The reason that construction hoisting machinery has an accident is many-sided, by the defective of construction hoisting machinery own and ageing equipment, basic design and constructional deficiency, maintaining and use misoperation etc.In recent years, along with the aggravation of construction lifting equipment " aging " degree, in rising trend by the safety misadventure that Structural Metallic Fatigue, corrosion and wearing and tearing cause.
" building crane Working Status Monitoring and the recording instrument " of domestic present implementation can only be protected and the parameters such as the hoisting capacity that records hoisting crane, hoisting moment, lifting amplitude, lifting height; these functions repeat substantially with the original safety device of hoisting crane on protection domain; limitation is large, can not satisfy the as mentioned above requirement of the accidents caused required safety guard-safeguard of most of reasons such as gene basis unstability, setup error, ageing equipment and defence.
Facts have proved that the reason that construction hoisting machinery is caused danger is diversified, even be the coefficient result of many factors sometimes, but generally, these reasons are premonitory before causing accident, a GPRS a lot of accidents of its inherent rule can prevent.In view of this, seek a kind ofly can thoroughly evaluating become pursuing a goal of these those skilled in the art with the monitoring method of monitoring elevator machinery safety case.The present invention is by to the research of elevator machinery dynamic characteristic, proposed by set up health account to the safety and Health situation of elevator machinery measure, the device of tracking and monitoring.
Summary of the invention
For the defective that exists in the prior art, the purpose of this invention is to provide a kind of Gernral Check-up and method for safety monitoring and device thereof of elevator machinery.
For achieving the above object, the present invention adopts following technical scheme:
According to a first aspect of the invention, provide a kind of Gernral Check-up and method for safety monitoring of elevator machinery, the concrete steps of this Gernral Check-up and method for safety monitoring are:
A. health account establishment step, namely produce or detect unit and confirming that elevator machinery meets in the situation of operating needs, according to amplitude and the hoisting capacity of elevator machinery, setting up based on different operating amplitude and different hoisting capacity is several body of the tower natural frequency of vibration reference values, several body of the tower deflection reference values, several jib natural frequency of vibration reference values and several jib deflection reference values under the working condition;
B. Gernral Check-up step, i.e. at the scene elevator machinery, working condition according to identical when setting up health account detects several body of the tower natural frequency of vibration detected values, several body of the tower deflection detected values, several jib natural frequency of vibration detected values and several jib deflection detected values;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the differences of two values all in default error limit, then elevator machinery belongs to state of health, continues to use;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the difference of two values exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
The Gernral Check-up of described elevator machinery and method for safety monitoring also comprise the Real Time Monitoring step, i.e. at the scene elevator machinery, according to the amplitude under the real-time working condition condition and hoist rope hoisting capacity, obtain real-time body of the tower natural frequency of vibration detected value, real-time body of the tower deflection detected value, real-time jib natural frequency of vibration detected value and real-time jib deflection detected value;
The natural frequency of vibration and the deflection of hoisting crane body of the tower and jib under the monitoring real-time working condition condition, in the health account of setting up with steps A, find out two work ranges and two hoisting capacities adjacent with this service conditions, and in health account, find thus structural vibration frequency and the deformation values thereof that hoisting crane is worked under two adjacent operating modes, adopt again the two-dimensional linear method of interpolation obtain the body of the tower natural frequency of vibration that hoisting crane works under the real-time working condition condition with reference to correction, body of the tower deflection with reference to correction, the jib natural frequency of vibration with reference to correction and jib deflection with reference to correction;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the differences of two values in default error limit, then elevator machinery belongs to state of health, continues to use;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the difference of two values exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
The measurement of the described jib natural frequency of vibration and jib deflection obtains by speed sensor or the acceleration pick-up of being located at the jib outer end.
The measurement of the described body of the tower natural frequency of vibration and body of the tower deflection obtains by speed sensor or the acceleration pick-up of being located at the body of the tower upper end.
According to a second aspect of the invention, a kind of Gernral Check-up and safety monitoring device of elevator machinery also are provided, comprise the CPU module, described CPU module realizes two way communication with memory module, A/D modular converter, keyboard and read-out respectively, described A/D modular converter links to each other with the sound and light alarm output module, the A/D modular converter also with speed sensor or/and acceleration pick-up link to each other;
Described speed sensor or acceleration pick-up are located at the outer end of jib;
Described speed sensor or acceleration pick-up also are located at the upper end of body of the tower.
According to a third aspect of the invention we, also provide a kind of Gernral Check-up and method for safety monitoring of elevator machinery, the concrete steps of this Gernral Check-up and method for safety monitoring are:
A. health account establishment step, namely produce or detect unit and confirming that elevator machinery meets in the situation of operating needs, according to amplitude and the hoisting capacity of elevator machinery, setting up based on different operating amplitude and different hoisting capacity is several tower body inclining angle reference values, several body of the tower deflection reference values, several jib angle of inclination reference values and several jib deflection reference values under the working condition;
B. Gernral Check-up step, i.e. at the scene elevator machinery, working condition according to identical when setting up health account detects several tower body inclining angle detected value, several body of the tower deflection detected values, several jib angle of inclination detected values and several jib deflection detected values;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the differences of two values in default error limit, then elevator machinery belongs to state of health, continues to use;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the difference of two values exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
The Gernral Check-up of described elevator machinery and method for safety monitoring also comprise real-time detecting step, i.e. at the scene elevator machinery, according to the amplitude under the real-time working condition condition and hoist rope hoisting capacity, obtain real-time tower body inclining angle detected value, real-time body of the tower deflection detected value, real-time jib angle of inclination detected value and real-time jib deflection detected value;
The natural frequency of vibration and the deflection of hoisting crane body of the tower and jib under the monitoring real-time working condition condition, in the health account of setting up with steps A, find out two work ranges and two hoisting capacities adjacent with this service conditions, and in health account, find thus angle of inclination value and the deformation values thereof that hoisting crane is worked under two adjacent operating modes, adopt again the two-dimensional linear method of interpolation obtain tower body inclining angle that hoisting crane works under the real-time working condition condition with reference to correction, body of the tower deflection with reference to correction, jib angle of inclination with reference to correction and jib deflection with reference to correction;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the differences of two values in default error limit, then elevator machinery belongs to state of health, continues to use;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the difference of two values exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
The measurement of described jib angle of inclination and jib deflection obtains by the obliquity sensor of being located at the jib outer end.
The measurement of described tower body inclining angle and body of the tower deflection obtains by the obliquity sensor of being located at the body of the tower upper end.
According to a forth aspect of the invention, a kind of Gernral Check-up and safety monitoring device of elevator machinery also are provided, comprise the CPU module, described CPU module realizes two way communication with memory module, A/D modular converter, keyboard and read-out respectively, described A/D modular converter links to each other with the sound and light alarm output module, and the A/D modular converter also links to each other with obliquity sensor;
Described obliquity sensor is located at respectively the outer end of jib and the upper end of body of the tower.
Compared with prior art, adopt Gernral Check-up and method for safety monitoring and the device thereof of a kind of elevator machinery of the present invention, because the present invention has adopted with new installation or has been in the comparison of the primitive technology performance of serviceable condition equipment, it is a kind of comprehensive detection inspection method, whether metal construction that can judgment device is in a safe condition, and compares with technology such as existing manual detection, flaw detection, stress detections to have the following advantages:
1, the present invention can avoid or alleviate the not accessible position of the personnel of hoisting crane metal construction is checked and monitors.The construction lifting equipment metal construction is complicated, and weld seam is many, and is sometimes single from the very difficult discovery of exterior check internal defects, and many positions are owing to the security reason supervisory personnel is difficult to arrive.The present invention can obtain the unusual symptoms such as the metal construction main bearing member cracks by the dynamic technique parameter of detection or monitoring structure, is the information that provides that further checks.
2, the present invention can overcome the limitation of metal construction non-destructive flaw detection, the weld seam of conventional hoist metallic gold hook is melt-through weld not necessarily, adopt the ultrasonic flaw detection to have difficulties, some backward wave that can be judged as internal defect has existed when new machine dispatches from the factory, and the surface inspection of metallic material needs to remove first surface paint, work capacity is very large, can not adopt as census method.
3, the present invention is detecting more convenient, more accurate in the safety inspection of metal construction and the assessment than structural stress.The corrosion of metal construction can be reflected in the raising of structural stress with wearing and tearing, but owing to each difference of testing patch location, loaded load and operating condition of test, detects the stress that obtains and always fluctuate in certain scope.Particularly weight stress is difficult accurately obtains, and the point position that stress detects can only be selected the larger position of stress, and can not select the point of stress maximum because usually the stress maximum point near have stress to concentrate, complex-shaped.
4, the present invention is comprehensively monitoring and the evaluation to the equipment state of health, system can be to the structure season cracking, attrition and attack, overflow, basic unstability etc. be various to be affected equipment and uses the factors of safety automatically to set and monitor, and is the most comprehensive elevator machinery active safety system of defense so far.
Description of drawings
Fig. 1 is the principle schematic of embodiments of the invention 2;
Fig. 2 is the principle schematic of embodiments of the invention 4.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
Embodiment 1
A kind of Gernral Check-up of elevator machinery and method for safety monitoring, the concrete steps of this Gernral Check-up and method for safety monitoring are:
21. health account establishment step, namely produce or detect unit and confirming that elevator machinery meets in the situation of operating needs, according to amplitude and the hoisting capacity of elevator machinery, setting up based on different operating amplitude and different hoisting capacity is several body of the tower natural frequency of vibration reference values, several body of the tower deflection reference values, several jib natural frequency of vibration reference values and several jib deflection reference values under the working condition;
22. Gernral Check-up step, i.e. at the scene elevator machinery, working condition according to identical when setting up health account detects several body of the tower natural frequency of vibration detected values, several body of the tower deflection detected values, several jib natural frequency of vibration detected values and several jib deflection detected values;
Reference value corresponding in each detected value in the step 22 and the step 21 is compared, if the differences of two values all in default error limit, then elevator machinery belongs to state of health, continues to use;
Reference value corresponding in each detected value in the step 22 and the step 21 is compared, if the difference of any one group of two value after relatively exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
23. Real Time Monitoring step, i.e. at the scene elevator machinery, according to the amplitude under the real-time working condition condition and hoist rope hoisting capacity, obtain real-time body of the tower natural frequency of vibration detected value, real-time body of the tower deflection detected value, real-time jib natural frequency of vibration detected value and real-time jib deflection detected value;
The natural frequency of vibration and the deflection of hoisting crane body of the tower and jib under the monitoring real-time working condition condition, in the health account of setting up with step 21, find out two work ranges and two hoisting capacities adjacent with this service conditions, and in health account, find thus structural vibration frequency and the deformation values thereof that hoisting crane is worked under two adjacent operating modes, adopt again the two-dimensional linear method of interpolation obtain the body of the tower natural frequency of vibration that hoisting crane works under the real-time working condition condition with reference to correction, body of the tower deflection with reference to correction, the jib natural frequency of vibration with reference to correction and jib deflection with reference to correction;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the differences of two values all in default error limit, then elevator machinery belongs to state of health, continues to use;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the difference of any one group of two value after relatively exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
The measurement of the described jib natural frequency of vibration and jib deflection obtains by speed sensor or the acceleration pick-up of being located at the jib outer end.
The measurement of the described body of the tower natural frequency of vibration and body of the tower deflection obtains by speed sensor or the acceleration pick-up of being located at the body of the tower upper end.
Technical thought of the present invention at first is the method for building up that has proposed a kind of elevator machinery health account, and this health account gathers according to certain test method and requirement and preserves with the electronic document of predetermined format.The health account of equipment can be gathered and processed in product export check by the elevator machinery production unit, for equipment in use, also can be required according to the rules in the intact situation of equipment state to gather and process confirming by professional testing agency or equipment applying unit.Technical data in the health account has represented the use state of device security.When ageing equipment or injured after, need to re-start the safety of equipment and detect and estimate in the time of maybe need carrying out security monitoring to important weight-lifting equipment, we can redeterminate technical data in the health account according to setting up consistent method with health account, whether the difference of these data relatively under identical operating mode is in a safe condition according to the situation of change judgment device of these data.
Embodiment 2
See also Gernral Check-up and the safety monitoring device of a kind of elevator machinery shown in Figure 1, comprise CPU module 11, CPU module 11 realizes two way communication with memory module 12, A/D modular converter 13, keyboard 14 and read-out 15 respectively, A/D modular converter 13 links to each other with sound and light alarm output module 16, and A/D modular converter 13 also links to each other with speed sensor 17; Wherein, speed sensor 17 is located at the outer end of jib and the upper end of body of the tower.
Parameter in the health account is inputted and is stored in the memory module 12 of system by keyboard 14, and the signal of speed sensor 17 converts the digital signal that CPU module 11 can be identified to by A/D modular converter 13.When elevator machinery in when work, CPU module 11 is recorded in the sensor information in the A/D modular converter 13 in the memory module 12 in real time, if elevator machinery is in abnomal condition, main frame carries out sound and light alarm by sound and light alarm module 16, and alert, service personnel carry out necessary inspection.
It is pointed out that the embodiment of the invention 1 described Gernral Check-up and method for safety monitoring and the embodiment of the invention 2 described Gernral Check-ups and safety monitoring device are identical or similar in principle and implementation procedure, so its repeating part does not repeat them here.
Embodiment 3
A kind of Gernral Check-up of elevator machinery and method for safety monitoring is characterized in that:
The concrete steps of this Gernral Check-up and method for safety monitoring are:
41. health account establishment step, namely produce or detect unit and confirming that elevator machinery meets in the situation of operating needs, according to amplitude and the hoisting capacity of elevator machinery, setting up based on different operating amplitude and different hoisting capacity is several tower body inclining angle reference values, several body of the tower deflection reference values, several jib angle of inclination reference values and several jib deflection reference values under the working condition;
42. Gernral Check-up step, i.e. at the scene elevator machinery, working condition according to identical when setting up health account detects several tower body inclining angle detected value, several body of the tower deflection detected values, several jib angle of inclination detected values and several jib deflection detected values;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the differences of two values in default error limit, then elevator machinery belongs to state of health, continues to use;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the difference of any one group of two value after relatively exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
43. real-time detecting step, i.e. at the scene elevator machinery, according to the amplitude under the real-time working condition condition and hoist rope hoisting capacity, obtain real-time tower body inclining angle detected value, real-time body of the tower deflection detected value, real-time jib angle of inclination detected value and real-time jib deflection detected value;
The natural frequency of vibration and the deflection of hoisting crane body of the tower and jib under the monitoring real-time working condition condition, in the health account of setting up with step 41, find out two work ranges and two hoisting capacities adjacent with this service conditions, and in health account, find thus angle of inclination value and the deformation values thereof that hoisting crane is worked under two adjacent operating modes, adopt again the two-dimensional linear method of interpolation obtain tower body inclining angle that hoisting crane works under the real-time working condition condition with reference to correction, body of the tower deflection with reference to correction, jib angle of inclination with reference to correction and jib deflection with reference to correction;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the differences of two values in default error limit, then elevator machinery belongs to state of health, continues to use;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the difference of any one group of two value after relatively exceeds default error limit, then elevator machinery belongs to unhealthy status, withdraw from use.
The measurement of described jib angle of inclination and jib deflection obtains by the obliquity sensor of being located at the jib outer end;
The measurement of described tower body inclining angle and body of the tower deflection obtains by the obliquity sensor of being located at the body of the tower upper end.
Embodiment 3 is with the difference of embodiment 1: pass through the monitoring body of the tower natural frequency of vibration and the jib natural frequency of vibration by monitoring body of the tower angle of inclination and jib, rather than determine the state of elevator machinery by the monitoring body of the tower natural frequency of vibration and the jib natural frequency of vibration.
Embodiment 4
See also Gernral Check-up and the safety monitoring device of a kind of elevator machinery shown in Figure 2, comprise CPU module 51, described CPU module 51 realizes two way communication with memory module 52, A/D modular converter 53, keyboard 54 and read-out 55 respectively, A/D modular converter 53 links to each other with sound and light alarm output module 56, and A/D modular converter 53 also links to each other with obliquity sensor 57; Obliquity sensor 57 is located at respectively the outer end of jib and the upper end of body of the tower.
Embodiment 2 is with the difference of embodiment 4: the state of determining elevator machinery by obliquity sensor rather than Negotiation speed sensor.
It is pointed out that the embodiment of the invention 3 described Gernral Check-ups and method for safety monitoring and the embodiment of the invention 4 described Gernral Check-ups and safety monitoring device are identical or similar in principle and implementation procedure, so its repeating part does not repeat them here.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates purpose of the present invention, and be not as limitation of the invention, for example the speed sensor among the embodiment 2 can be substituted by acceleration pick-up, as long as in essential scope of the present invention, all will drop in the scope of claim of the present invention variation, the modification of the above embodiment.
Claims (8)
1. the Gernral Check-up of an elevator machinery and method for safety monitoring is characterized in that:
The concrete steps of this Gernral Check-up and method for safety monitoring are:
A. health account establishment step, namely produce or detect unit and confirming that elevator machinery meets in the situation of operating needs, according to amplitude and the hoisting capacity of elevator machinery, setting up based on different operating amplitude and different hoisting capacity is several body of the tower natural frequency of vibration reference values, several body of the tower deflection reference values, several jib natural frequency of vibration reference values and several jib deflection reference values under the working condition;
B. Gernral Check-up step, i.e. at the scene elevator machinery, working condition according to identical when setting up health account detects several body of the tower natural frequency of vibration detected values, several body of the tower deflection detected values, several jib natural frequency of vibration detected values and several jib deflection detected values;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the differences of two values all in default error limit, then elevator machinery belongs to state of health, continues to use; Otherwise elevator machinery belongs to unhealthy status, withdraw from use.
2. Gernral Check-up according to claim 1 and method for safety monitoring is characterized in that:
The Gernral Check-up of described elevator machinery and method for safety monitoring also comprise the Real Time Monitoring step, i.e. at the scene elevator machinery, according to the amplitude under the real-time working condition condition and hoist rope hoisting capacity, obtain real-time body of the tower natural frequency of vibration detected value, real-time body of the tower deflection detected value, real-time jib natural frequency of vibration detected value and real-time jib deflection detected value;
The natural frequency of vibration and the deflection of hoisting crane body of the tower and jib under the monitoring real-time working condition condition, in the health account of setting up with steps A, find out two work ranges and two hoisting capacities adjacent with this service conditions, and in health account, find thus structural vibration frequency and the deformation values thereof that hoisting crane is worked under two adjacent operating modes, adopt again the two-dimensional linear method of interpolation obtain the body of the tower natural frequency of vibration that hoisting crane works under the real-time working condition condition with reference to correction, body of the tower deflection with reference to correction, the jib natural frequency of vibration with reference to correction and jib deflection with reference to correction;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the differences of two values all in default error limit, then elevator machinery belongs to state of health, continues to use; Otherwise elevator machinery belongs to unhealthy status, withdraw from use.
3. each described Gernral Check-up and method for safety monitoring according to claim 1-2 is characterized in that:
The measurement of the described jib natural frequency of vibration and jib deflection obtains by speed sensor or the acceleration pick-up of being located at the jib outer end;
The measurement of the described body of the tower natural frequency of vibration and body of the tower deflection obtains by speed sensor or the acceleration pick-up of being located at the body of the tower upper end.
4. device of realizing Gernral Check-up claimed in claim 1 and method for safety monitoring is characterized in that:
Comprise the CPU module, described CPU module realizes two way communication with memory module, A/D modular converter, keyboard and read-out respectively, described A/D modular converter links to each other with the sound and light alarm output module, the A/D modular converter also with speed sensor or/and acceleration pick-up link to each other;
Described speed sensor or acceleration pick-up are located at the outer end of jib;
Described speed sensor or acceleration pick-up also are located at the upper end of body of the tower.
5. the Gernral Check-up of an elevator machinery and method for safety monitoring is characterized in that:
The concrete steps of this Gernral Check-up and method for safety monitoring are:
A. health account establishment step, namely produce or detect unit and confirming that elevator machinery meets in the situation of operating needs, according to amplitude and the hoisting capacity of elevator machinery, setting up based on different operating amplitude and different hoisting capacity is several tower body inclining angle reference values, several body of the tower deflection reference values, several jib angle of inclination reference values and several jib deflection reference values under the working condition;
B. Gernral Check-up step, i.e. at the scene elevator machinery, working condition according to identical when setting up health account detects several tower body inclining angle detected value, several body of the tower deflection detected values, several jib angle of inclination detected values and several jib deflection detected values;
Reference value corresponding in each detected value among the step B and the steps A is compared, if the differences of two values all in default error limit, then elevator machinery belongs to state of health, continues to use; Otherwise elevator machinery belongs to unhealthy status, withdraw from use.
6. Gernral Check-up according to claim 5 and method for safety monitoring is characterized in that:
The Gernral Check-up of described elevator machinery and method for safety monitoring also comprise real-time detecting step, i.e. at the scene elevator machinery, according to the amplitude under the real-time working condition condition and hoist rope hoisting capacity, obtain real-time tower body inclining angle detected value, real-time body of the tower deflection detected value, real-time jib angle of inclination detected value and real-time jib deflection detected value;
The natural frequency of vibration and the deflection of hoisting crane body of the tower and jib under the monitoring real-time working condition condition, in the health account of setting up with steps A, find out two work ranges and two hoisting capacities adjacent with this service conditions, and in health account, find thus angle of inclination value and the deformation values thereof that hoisting crane is worked under two adjacent operating modes, adopt again the two-dimensional linear method of interpolation obtain tower body inclining angle that hoisting crane works under the real-time working condition condition with reference to correction, body of the tower deflection with reference to correction, jib angle of inclination with reference to correction and jib deflection with reference to correction;
Above-mentioned each real-time detected value is compared with corresponding reference correction, if the differences of two values all in default error limit, then elevator machinery belongs to state of health, continues to use; Otherwise elevator machinery belongs to unhealthy status, withdraw from use.
7. each described Gernral Check-up and method for safety monitoring according to claim 5-6 is characterized in that:
The measurement of described jib angle of inclination and jib deflection obtains by the obliquity sensor of being located at the jib outer end;
The measurement of described tower body inclining angle and body of the tower deflection obtains by the obliquity sensor of being located at the body of the tower upper end.
8. device of realizing Gernral Check-up claimed in claim 5 and method for safety monitoring is characterized in that:
Comprise the CPU module, described CPU module realizes two way communication with memory module, A/D modular converter, keyboard and read-out respectively, and described A/D modular converter links to each other with the sound and light alarm output module, and the A/D modular converter also links to each other with obliquity sensor;
Described obliquity sensor is located at respectively the outer end of jib and the upper end of body of the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457715.0A CN102963828B (en) | 2012-11-14 | 2012-11-14 | Method and device for health diagnosis and safety monitoring of lifting appliance |
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| CN103285549A (en) * | 2013-06-06 | 2013-09-11 | 长沙中联消防机械有限公司 | Method, equipment and system for monitoring load of fire fighting truck and fire fighting truck |
| CN104120885A (en) * | 2014-07-15 | 2014-10-29 | 三一集团有限公司 | Pump truck as well as system and method for monitoring fatigue health condition of pump truck boom |
| CN105302044A (en) * | 2015-11-18 | 2016-02-03 | 北汽福田汽车股份有限公司 | Arm support load monitoring method and system |
| CN106379812A (en) * | 2016-09-22 | 2017-02-08 | 北京工业大学 | Internal climbing type construction tower crane natural vibration frequency monitoring device and monitoring method thereof |
| CN108827607A (en) * | 2018-04-18 | 2018-11-16 | 山东富友慧明测控设备有限公司 | A kind of safety monitoring method and monitoring device suitable for a variety of steel constructions |
| CN109470500A (en) * | 2018-10-15 | 2019-03-15 | 中联重科股份有限公司 | Crane test platform monitoring system and monitoring method |
| CN109724760A (en) * | 2018-12-21 | 2019-05-07 | 沈阳建筑大学 | A kind of detection of derrick crane safe condition and evaluation system |
| CN109835817A (en) * | 2017-11-28 | 2019-06-04 | 中冶宝钢技术服务有限公司 | A kind of bridge crane intelligence progress control method |
| US11249455B2 (en) | 2019-07-08 | 2022-02-15 | Ford Global Technologies, Llc | Automation system and wear detection controller |
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| CN103285549A (en) * | 2013-06-06 | 2013-09-11 | 长沙中联消防机械有限公司 | Method, equipment and system for monitoring load of fire fighting truck and fire fighting truck |
| CN103285549B (en) * | 2013-06-06 | 2015-08-19 | 长沙中联消防机械有限公司 | Method, equipment and system for monitoring load of fire fighting truck and fire fighting truck |
| CN104120885A (en) * | 2014-07-15 | 2014-10-29 | 三一集团有限公司 | Pump truck as well as system and method for monitoring fatigue health condition of pump truck boom |
| CN105302044A (en) * | 2015-11-18 | 2016-02-03 | 北汽福田汽车股份有限公司 | Arm support load monitoring method and system |
| CN106379812A (en) * | 2016-09-22 | 2017-02-08 | 北京工业大学 | Internal climbing type construction tower crane natural vibration frequency monitoring device and monitoring method thereof |
| CN106379812B (en) * | 2016-09-22 | 2018-07-31 | 北京工业大学 | A kind of inner climbing type construction tower crane natural frequency of vibration monitoring device and its monitoring method |
| CN109835817A (en) * | 2017-11-28 | 2019-06-04 | 中冶宝钢技术服务有限公司 | A kind of bridge crane intelligence progress control method |
| CN108827607A (en) * | 2018-04-18 | 2018-11-16 | 山东富友慧明测控设备有限公司 | A kind of safety monitoring method and monitoring device suitable for a variety of steel constructions |
| CN108827607B (en) * | 2018-04-18 | 2020-01-14 | 山东富友慧明测控设备有限公司 | Safety monitoring method and monitoring device suitable for various steel structures |
| CN109470500A (en) * | 2018-10-15 | 2019-03-15 | 中联重科股份有限公司 | Crane test platform monitoring system and monitoring method |
| CN109724760A (en) * | 2018-12-21 | 2019-05-07 | 沈阳建筑大学 | A kind of detection of derrick crane safe condition and evaluation system |
| CN109724760B (en) * | 2018-12-21 | 2020-12-01 | 沈阳建筑大学 | Tower crane safety state detection and evaluation system |
| US11249455B2 (en) | 2019-07-08 | 2022-02-15 | Ford Global Technologies, Llc | Automation system and wear detection controller |
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