CN203006780U - Crane moment protection system based on sensor technology - Google Patents
Crane moment protection system based on sensor technology Download PDFInfo
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- CN203006780U CN203006780U CN 201220739704 CN201220739704U CN203006780U CN 203006780 U CN203006780 U CN 203006780U CN 201220739704 CN201220739704 CN 201220739704 CN 201220739704 U CN201220739704 U CN 201220739704U CN 203006780 U CN203006780 U CN 203006780U
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- protection system
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Abstract
The utility model discloses a crane moment protection system based on a sensor technology. The crane moment protection system comprises a weight sensor, an angle sensor, a length sensor and an MCU (Microprogrammed Control Unit); the signal output ends of the weight sensor, the angle sensor and the length sensor are all connected with a signal input end of a second-order low-pass filtering device; the signal output end of the second-order low-pass filtering device is connected with the signal input end of an A/D converting device; the signal output end of the A/D converting device is connected with the MCU; the signal output end of the MCU is connected with an isolating circuit; the isolating circuit is connected with a driving circuit; and the driving circuit is respectively connected with a crane lifting control circuit and a crane amplitude control circuit. According to the crane moment protection system based on the sensor technology, the isolating circuit is arranged, so that the problem that the system is interfered can be effectively solved, and the reliability and precision of the moment protection system are improved; and the crane moment protection system has the characteristics of being high in sensitivity, simple in structure and reliable to work.
Description
Technical field
The utility model belongs to the hoisting crane technical field, is specifically related to a kind of force moment of crane protection system based on sensing technology.
Background technology
Hoisting crane is as special equipment, and its safety is most important.According in recent years elevator machinery safety misadventure investigation result being shown, the major cause that the elevator machinery accident occurs is that, build guality (comprise quality of materials) improper with design is inferior a relation, and prior reason is due to the operation against rules that the safety in production idea is thin, mal-administer causes.The overload of hoisting crane causes the grave accidents such as disconnected beam, folding arm, complete machine topple to badly influence equipment and personnel's safety, and therefore, the installation of force moment of crane protection system is a very crucial safety performance protection.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of highly sensitive, reliable operation, has the force moment of crane protection system of good man-machine interface.
for solving the problems of the technologies described above, a kind of force moment of crane protection system based on sensing technology of the utility model, comprise the weight sensor that is arranged on the hoisting crane main rope, be arranged on the angular transducer on crane arm, be arranged on linear transducer and MCU on main arm of crane, described weight sensor, the signal output part of angular transducer and linear transducer all is connected with the signal input part of second-order low-pass filter device, the signal output part of described second-order low-pass filter device is connected with the signal input part of A/D transfer device, described A/D transfer device signal output part be connected with MCU, the signal output part of described MCU is connected with buffer circuit, described buffer circuit is connected with driving circuit, described driving circuit is connected with the crane amplitude variation control circuit with the hoisting crane rise control circuit respectively.
As preferably, above-mentioned force moment of crane protection system also comprises the touch-screen that is connected with MCU, and the LED that is connected with MCU and keyboard.Owing to adopting full liquid crystal dot matrix (graphic Chinese character) technique of display aspect demonstration, and the working interface that adopts full Chinese character to show, more directly perceived when the user is used, clear and definite, have good man-machine interface.
Further preferred, above-mentioned buffer circuit is optical coupling isolation circuit.
Compared with prior art; the beneficial effects of the utility model are: the utility model is provided with buffer circuit; can effectively solve the system interference problem; reliability and the precision of force moment protection system have been improved; have characteristics highly sensitive, simple in structure, reliable operation, can effectively remind and warn the potential potential safety hazard of operating personal prevention.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the schematic diagram of a kind of force moment of crane protection system based on sensing technology of the utility model.
The specific embodiment
as shown in Figure 1, a kind of force moment of crane protection system based on sensing technology, comprise the weight sensor that is arranged on the hoisting crane main rope, be arranged on the angular transducer on crane arm, be arranged on linear transducer and MCU on main arm of crane, described weight sensor, the signal output part of angular transducer and linear transducer all is connected with the signal input part of second-order low-pass filter device, the signal output part of described second-order low-pass filter device is connected with the signal input part of A/D transfer device, described A/D transfer device signal output part be connected with MCU, the signal output part of described MCU is connected with buffer circuit, described buffer circuit is connected with driving circuit, described driving circuit is connected with the crane amplitude variation control circuit with the hoisting crane rise control circuit respectively.Described force moment of crane protection system also comprises the touch-screen that is connected with MCU, and the LED that is connected with MCU and keyboard.Described buffer circuit is optical coupling isolation circuit.
Principle of work of the present utility model is: MCU gathers the signal from weight sensor, angular transducer and linear transducer, amplifies through signal, then converts digital signal to through A/D converter, carries out computing at MCU; After the setting value comparison process, giving read-out demonstrates relevant data on the one hand, on the other hand with instrument internal in the limit of predefined weight, amplitude, angle etc. compare, when surpass rated weight 90% the time, just send the acousto-optic early warning; When surpassing rated weight 100%, send the sound and light alarm prompting, when surpassing 105%, output control signal, automatic cutout hoisting crane be to the control loop of dangerous direction operation, but allow to secure side to operation, thereby reach the purpose of safety guard-safeguard.
Claims (3)
1. force moment of crane protection system based on sensing technology, comprise the weight sensor that is arranged on the hoisting crane main rope, be arranged on the angular transducer on crane arm, be arranged on linear transducer and MCU on main arm of crane, it is characterized in that: described weight sensor, the signal output part of angular transducer and linear transducer all is connected with the signal input part of second-order low-pass filter device, the signal output part of described second-order low-pass filter device is connected with the signal input part of A/D transfer device, described A/D transfer device signal output part be connected with MCU, the signal output part of described MCU is connected with buffer circuit, described buffer circuit is connected with driving circuit, described driving circuit is connected with the crane amplitude variation control circuit with the hoisting crane rise control circuit respectively.
2. a kind of force moment of crane protection system based on sensing technology according to claim 1, it is characterized in that: described force moment of crane protection system also comprises the touch-screen that is connected with MCU, and the LED that is connected with MCU and keyboard.
3. a kind of force moment of crane protection system based on sensing technology according to claim 1, it is characterized in that: described buffer circuit is optical coupling isolation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739704 CN203006780U (en) | 2012-12-31 | 2012-12-31 | Crane moment protection system based on sensor technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739704 CN203006780U (en) | 2012-12-31 | 2012-12-31 | Crane moment protection system based on sensor technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203006780U true CN203006780U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220739704 Expired - Fee Related CN203006780U (en) | 2012-12-31 | 2012-12-31 | Crane moment protection system based on sensor technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203006780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253781A (en) * | 2015-10-31 | 2016-01-20 | 长治清华机械厂 | Moment limiter suitable for complex electromagnetic compatibility environment |
| CN111232846A (en) * | 2020-01-14 | 2020-06-05 | 江苏徐工工程机械研究院有限公司 | Safety control device and method and crane moment safety monitoring system |
-
2012
- 2012-12-31 CN CN 201220739704 patent/CN203006780U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253781A (en) * | 2015-10-31 | 2016-01-20 | 长治清华机械厂 | Moment limiter suitable for complex electromagnetic compatibility environment |
| CN111232846A (en) * | 2020-01-14 | 2020-06-05 | 江苏徐工工程机械研究院有限公司 | Safety control device and method and crane moment safety monitoring system |
| CN111232846B (en) * | 2020-01-14 | 2022-02-01 | 江苏徐工工程机械研究院有限公司 | Safety control device and method and crane moment safety monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |