CN205204656U - Crane moment limiter - Google Patents
Crane moment limiter Download PDFInfo
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- CN205204656U CN205204656U CN201520853669.5U CN201520853669U CN205204656U CN 205204656 U CN205204656 U CN 205204656U CN 201520853669 U CN201520853669 U CN 201520853669U CN 205204656 U CN205204656 U CN 205204656U
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Abstract
The utility model relates to a crane moment limiter, including main control unit, CAN data collection card, length angle sensor, jack -up weighing transducer, wherein, length angle sensor's data output end links to each other with CAN data collection card's input, jack -up weighing transducer's data output end links to each other with CAN data collection card's input, CAN data collection card's output with main control unit's input links to each other. The utility model discloses a conventional sensor combines the CAN data acquisition transmission mode to realize detecting the collection / transmission of data, and when the hoisting equipment during operation, all detect data and collect / transmit to the torque limiter main control system through the CAN capture card, conveys analog signal through the CAN bus, has prevented effectively that the circuit and the external world from to the interference of signal, having improved the reliability of system.
Description
Technical field
The utility model relates to field of engineering technology, is specifically related to a kind of limiter of moment for weight-lifting equipment.
Background technology
Hoisting crane plays very important effect in engineering construction and accident rescue, when using hoisting crane to carry out hoisting operation, need often to change operating mode according to field condition and carry out hoisting operation, hang as changed and carry angle etc., and the work luffing lifted by crane under different operating mode and maximum load rating are different, therefore a set of safety device is needed to carry out comprehensive monitoring judgement to above parameter, real-time display hoisting crane normally works, fully loaded, overload, luffing surpasses the upper limit, luffing surpasses the mode of operations such as lower limit, and carry out corresponding warning, prompting, control, to ensure crane safety work.For this reason, hoisting crane is all furnished with limiter of moment as safety guard, according to the mode of operation of hoisting crane reality, according to specific load curve, automatically moment restriction is carried out to hoisting crane, prevent the dangerous play of hoisting crane.Therefore, limiter of moment product is the requisite safety guard of one on lifting equipment.
Promulgate since " crane torque limiter technical specification of security " from State Bureau of Technical Supervision, limiter of moment speed of development in is in recent years very fast, but the existing limiter of moment of existing limiter of moment many employings Single Chip Microcomputer (SCM) system realizes, detection signal by sensor directly flows to micro controller system to carry out calculating and processes, the major defect of the program is: when weight-lifting equipment works, for the reason due to external action or circuit, system data is easily caused to transmit unstable, make the obstacle overcome ability of system poor, affect the normal operation of weight-lifting equipment.For industrial control system, very high to jamproof requirement, in view of the important safety effect of limiter of moment, research and develop a kind of data transmission and stablize, the limiter of moment that antijamming capability is strong seems extremely important.
Utility model content
The utility model is poor for limiter of moment obstacle overcome ability in prior art, the problem of data transmission instability, overcomes the deficiency that prior art exists, provides a kind of crane torque limiter with CAN data collecting card.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of crane torque limiter, comprise master controller, CAN data collecting card, length/angular transducer, lifting weight sensor, wherein, the data output end of described length/angular transducer is connected with the input end of described CAN data collecting card, the data output end of described lifting weight sensor is connected with the input end of described CAN data collecting card, and the mouth of described CAN data collecting card is connected with the input end of described master controller;
Crane torque limiter of the present utility model, also comprises height limit switch, and described height limit switch is connected with weight, and the data output end of described height limit switch is connected with described master controller by crane arm head connection box.
Crane torque limiter of the present utility model also comprises H type connection terminal, the data output end of described lifting weight sensor is connected with the input end of described CAN data collecting card through described H type connection terminal, and the data output end of described length/angular transducer is connected with the input end of described CAN data collecting card by described H type connection terminal.
Described length/angular transducer comprises length transmitter and angular transducer, and described length transmitter is provided with precision resistor.
Described master controller exports 24V DC current supply CAN data collecting card, described length/angular transducer and described lifting weight sensor.
Crane torque limiter of the present utility model also comprises display equipment, and described master controller also comprises an accessory power outlet, and described accessory power outlet is connected with described display equipment, for exporting crane operating status signal to described display equipment.
Compared with prior art; the utility model adopts conventional sensors to realize detecting the collection/transmission of data in conjunction with CAN data acquisition/type of transmission; when weight-lifting equipment works; limiter of moment main control system is collected/be transferred to all detection data by CAN capture card; by CAN, analog signals is transmitted; effectively prevent the interference of circuit and outer bound pair signal; achieve the transmitting of overload crane fender guard signal data; guarantee the safe and reliable work of weight-lifting equipment; progressively can introduce to the market after using checking, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of limiter of moment of the present utility model;
Fig. 2 is the circuit connection diagram of the embodiment of limiter of moment of the present utility model;
Fig. 3 is the circuit connection diagram of another embodiment of limiter of moment of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further details.
As shown in Figure 1, be the structural representation of the embodiment of limiter of moment of the present utility model.Limiter of moment is by master controller 1, CAN data collecting card 2, and length/angular transducer 3, lifting weight sensor 4 forms.Wherein, length/angular transducer 3 is connected with CAN data collecting card 2 with lifting weight sensor 4, the length/angle signal of crane arm, and lifting weight signal etc. is gathered by CAN data collecting card 2; CAN data collecting card 2 is connected with master controller 1 by CAN, and by collected length/angle signal, lifting weight signal is transferred to master controller 1, is processed each sensor signal by master controller 1.
Fig. 2 is the circuit connection diagram of the embodiment of limiter of moment of the present utility model.As shown in Figure 2, master controller 1 is provided with two sockets, i.e. socket X1 and socket X2; Pin E, the pin C of socket X1 are connected with pin CANL1, the pin CANH1 of CAN data collecting card 2 respectively by CAN data transmission bus, and the related data for being collected by CAN data collecting card 2 sends master controller 1 to; Pin G, the pin S of socket X1 are connected with pin GND, the pin VIN of CAN data collecting card 2 respectively, for the vdc exporting 24V to CAN data collecting card 2; Pin G, the pin S of socket X1 also respectively with length/angular transducer 3, the power input port of lifting weight sensor 4 is connected, for length/angular transducer 3, lifting weight sensor 4 supply the vdc of 24V; The pin R of socket X1 is connected with height limit switch 5, and the high limit alerting signal of height limit switch 5 sends master controller 1 to by the pin R of socket X1; Length/angular transducer 3 comprises length transmitter 31, angular transducer 32, length transmitter 31, angular transducer 32, the signal output part of lifting weight sensor 4 respectively with the pin 1N0 of CAN data collecting card 2,1N1,1N2 is connected, thus makes CAN data collecting card 2 acquisition length transmitter 31, angular transducer 32, the length signals that lifting weight sensor 4 sends respectively, angle signal and force signal.
As shown in Figure 3, be another embodiment of limiter of moment of the present utility model, with previous embodiment unlike, also comprise H type connection terminal HJX in the circuit of the limiter of moment of the present embodiment.In addition, be also provided with slip ring SR in circuit, the arm head connection box of hoisting crane is provided with adaptor union M; The pin S of the socket X1 of master controller 1 is by after H type connection terminal HJX, respectively with length/angular transducer 3, the power input port of lifting weight sensor 4 is connected, for length/angular transducer 3 and lifting weight sensor 4 input 24V vdc, the pin S of the socket X1 of master controller 1 is by after H type connection terminal HJX, slip ring SR, is connected with the power input port of lifting weight sensor 4 after adaptor union M, for lifting weight sensor 4 inputs 24V vdc.In addition, adaptor union M is passed through with the signal output port of height limit switch 5 by rear, be connected with the pin R of socket X1 after slip ring SR, H type connection terminal HJX, the altitude warning signal that height limit switch 5 exports is through slip ring SR, after H type connection terminal HJX, be sent to master controller 1 by the pin R of socket X1; Length transmitter 31, the signal output part of angular transducer 32 by H type connection terminal HJX respectively with the pin 1N0 of CAN data collecting card 2,1N1 is connected, thus by length signals, angle signal flows to CAN data collecting card 2 and gathers, the signal output part of lifting weight sensor 4, by adaptor union M, is connected with the pin 1N2 of CAN data collecting card 2 after slip ring SR, H type connection terminal HJX, thus force signal is given CAN data collecting card 2 and gather.Wherein, length transmitter 31 is provided with precision resistor, makes the accurate sensing of length transmitter energy and the length signals of transshipment crane.
Compared with previous embodiment, embodiment adds H type connection terminal, more a step ensure that the stability of transmission data.
When weight-lifting equipment works, the signal collected can be sent to CAN data collecting card 2 by lifting weight sensor 4, length/angular transducer 3, coherent signal is sent to master controller 1 by CAN data bus by CAN data collecting card 2 again, guarantees the real-time of data, stability and reliability.After related data processes by master controller 1, master controller 1 shows/related data of outdevice work and state, and when weight-lifting equipment moment exceedes specified value, master controller 1 will send sound and light alarm information, the available protecting safety of weight-lifting equipment.
The limiter of moment of the present embodiment can also comprise display equipment, and the socket X2 of master controller 1 is used for display translation, and its mouth is connected with display equipment; Master controller 1 is to after each sensor signal process, weight-lifting equipment mode of operation is obtained by associated control software algorithm, thus judge weight-lifting equipment whether safety, and export relevant working state signal to display equipment by socket X2, thus realize associated safety monitoring, alarming function.Wherein the pin P of socket X2 is used for high limit warning output, pin F is used for system and normally exports, pin L is used for early warning (90-95%) and exports, pin N is used for early warning (95-100%) and exports, pin G is used for early warning (100-107%) and exports, and pin L is used for early warning (> 107%) and exports.
The utility model adopts conventional sensors to realize detecting the collection/transmission of data in conjunction with CAN data acquisition/type of transmission, when weight-lifting equipment works, limiter of moment main control system is collected/be transferred to all detection data by CAN capture card, by CAN, analog signals is transmitted, effectively prevent the interference of circuit and outer bound pair signal, improve the reliability of system.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (6)
1. a crane torque limiter, it is characterized in that, comprise master controller, CAN data collecting card, length/angular transducer, lifting weight sensor, wherein, the data output end of described length/angular transducer is connected with the input end of described CAN data collecting card, and the data output end of described lifting weight sensor is connected with the input end of described CAN data collecting card, and the mouth of described CAN data collecting card is connected with the input end of described master controller.
2. crane torque limiter according to claim 1, it is characterized in that, also comprise height limit switch, described height limit switch is connected with weight, and the data output end of described height limit switch is connected with described master controller by crane arm head connection box.
3. crane torque limiter according to claim 1, it is characterized in that, also comprise H type connection terminal, the data output end of described lifting weight sensor is connected with the input end of described CAN data collecting card through described H type connection terminal, and the data output end of described length/angular transducer is connected with the input end of described CAN data collecting card by described H type connection terminal.
4. crane torque limiter according to claim 1, is characterized in that, described length/angular transducer comprises length transmitter and angular transducer, and described length transmitter is provided with precision resistor.
5. crane torque limiter according to claim 1, is characterized in that, described master controller exports 24V DC current supply CAN data collecting card, described length/angular transducer and described lifting weight sensor.
6. crane torque limiter according to claim 1, it is characterized in that, also comprise display equipment, described master controller also comprises an accessory power outlet, described accessory power outlet is connected with described display equipment, for exporting crane operating status signal to described display equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853669.5U CN205204656U (en) | 2015-10-31 | 2015-10-31 | Crane moment limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853669.5U CN205204656U (en) | 2015-10-31 | 2015-10-31 | Crane moment limiter |
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| Publication Number | Publication Date |
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| CN205204656U true CN205204656U (en) | 2016-05-04 |
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| CN201520853669.5U Active CN205204656U (en) | 2015-10-31 | 2015-10-31 | Crane moment limiter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253780A (en) * | 2015-10-31 | 2016-01-20 | 长治清华机械厂 | Moment limiter of crane |
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2015
- 2015-10-31 CN CN201520853669.5U patent/CN205204656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253780A (en) * | 2015-10-31 | 2016-01-20 | 长治清华机械厂 | Moment limiter of crane |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 6 mailbox of Changzhi City, Shanxi Province, Shanxi Co-patentee after: China Academy of Launch Vehicle Technology Patentee after: Shanxi spaceflight Qinghua Equipment Co., Ltd. Address before: No. 6 mailbox of Changzhi City, Shanxi Province, Shanxi Co-patentee before: China Academy of Launch Vehicle Technology Patentee before: Qinghua Machinery Plant, Changzhi |