CN201901549U - Integrated moment limiter for small-tonnage crawler crane - Google Patents
Integrated moment limiter for small-tonnage crawler crane Download PDFInfo
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- CN201901549U CN201901549U CN2010206109128U CN201020610912U CN201901549U CN 201901549 U CN201901549 U CN 201901549U CN 2010206109128 U CN2010206109128 U CN 2010206109128U CN 201020610912 U CN201020610912 U CN 201020610912U CN 201901549 U CN201901549 U CN 201901549U
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- crawler crane
- moment
- limiter
- telltale
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Abstract
The utility model provides an integrated moment limiter for a small-tonnage crawler crane, comprising an angle sensor, a tension sensor, a motion controller, a display and a relay, wherein the angle sensor is used for measuring the angle of an arm support during the hoisting of the crawler crane; the tension sensor is used for measuring the mass of an object hoisted by the crawler crane; the motion controller is used for calculating data; the display is used for storing the data, displaying pictures and setting parameters; the relay is used for realizing power-off protection when the crawler crane is overloaded; and the angle sensor, the torsion sensor, the display and the relay are all connected to the motion controller. The integrated moment limiter of the small-tonnage crawler crane is simple in structure and can realize all functions of a moment limiter by being integrated in the existing control system, thus greatly reducing the cost of the moment limiter on the basis of improving the quality and the reliability of the moment limiter. The integrated moment limiter can display the exchange of functions of routine control and moment limitation, thereby reducing the redundancy of a control system.
Description
Technical field
The utility model relates to a kind of limiter of moment, particularly, relates to a kind of little tonnage crawler crane integrated form limiter of moment.
Background technology
At present, limiter of moment all is installed on crawler crane.Limiter of moment is made corresponding judgment by gathering the parameter of the current running state of hoisting crane in real time to the loading condition of hoisting crane.When the hoisting crane load reached a certain ratio of rated load, nominal load, limiter of moment just sent information such as warning; When load surpassed rated load, limiter of moment was with regard to automatic cutout hoisting crane power supply, prevented strength failure or complete machine is tumbled.
Yet domestic manufacturer can only produce the limiter of moment of hoisting crane below 300 tons at present.Thereby, the equal outsourcing limiter of moment of domestic crawler crane manufacturing firm.Thereby, be badly in need of a kind of reliable in quality of independent development, limiter of moment simple in structure, easy to maintenance.
The utility model content
The purpose of this utility model is to provide a kind of little tonnage crawler crane integrated form limiter of moment, it is integrated in the current control system, can realize that conventional control and moment are limited in the exchange function on the telltale, have very high control accuracy and automatization level.
To achieve these goals, a kind of little tonnage crawler crane integrated form limiter of moment of the present utility model, it comprises:
Angular transducer, pulling force sensor, motion controller, telltale, relay, wherein, and described angular transducer, pulling force sensor, telltale, relay all are connected to described motion controller.
According to above-mentioned little tonnage crawler crane integrated form limiter of moment, wherein, described angular transducer is the current mode angular transducer.
According to above-mentioned little tonnage crawler crane integrated form limiter of moment, wherein, described pulling force sensor is the current mode pulling force sensor.
According to above-mentioned little tonnage crawler crane integrated form limiter of moment, wherein, described relay is connected with photoelectric alarm.
Little tonnage crawler crane integrated form limiter of moment according to above-mentioned wherein, is connected by the CAN bus between described motion controller and the described telltale.
According to above-mentioned little tonnage crawler crane integrated form limiter of moment, wherein, described telltale is a Liquid Crystal Display (LCD).
According to above-mentioned little tonnage crawler crane integrated form limiter of moment, wherein, described telltale is provided with keyboard.
Therefore, a kind of little tonnage crawler crane integrated form limiter of moment of the present utility model is simple in structure, by being integrated in the current control system, realize all functions of limiter of moment, thereby on the basis of improving the limiter of moment q﹠r, reduced the cost of limiter of moment greatly; It also realizes the exchange function of conventional control and moment restriction by telltale, thereby has reduced the redundancy of control system.
Description of drawings
Fig. 1 is the structural representation of a kind of little tonnage crawler crane integrated form limiter of moment of the present utility model.
The specific embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
Little tonnage crawler crane integrated form limiter of moment in the utility model is an integrated structure, and it is integrated in the existing control system.The structure of little tonnage crawler crane integrated form limiter of moment of the present utility model includes angular transducer 1 as shown in Figure 1, pulling force sensor 2, motion controller 3, telltale 4, and annunciator 5.Wherein, angular transducer 1, pulling force sensor 2, telltale 4 and relay 5 all are connected on the motion controller 3.
The method of work of whole little tonnage crawler crane integrated form limiter of moment is as follows, the angle of jib when at first gathering current crawler crane lifting by angular transducer 1, pulling force sensor 2 is gathered the quality that current crawler crane hangs object carrier, and above-mentioned data are sent in the motion controller 3; Then, carry out the parameter setting (it should be noted that: do not allow to carry out the parameter setting when hoisting crane carries out work) of current retry by telltale 4, telltale 4 the storage above-mentioned parameter is set in, rated load value under these parameter situations and empty hook calibration value etc. are transferred in the motion controller 3; Motion controller 3 carries out corresponding data operation after receiving above-mentioned each data, thereby draws current rated load of crawler crane and actual load; If current actual load exceeded the rated load certain limit, relay 5 is with regard to automatic cutout, to prevent strength failure or complete machine is tumbled.These data that calculated by motion controller 3 can clearly be presented on the telltale 4.Therefore, the display data according to telltale 4 that operating personal can be real-time is judged the working condition that crawler crane is current, to guarantee operation safely and effectively.Owing to carry out the parameter transmission between telltale 4 and the motion controller 3, thereby even telltale 4 faults occurred and control shows fault, motion controller 3 is good to carry out normal data operation, so also do not have too big risk.
Because telltale 4 also possesses the function that data storage and parameter are provided with, thereby also is provided with corresponding memory and keyboard on the telltale 4 except possessing the function that picture shows, wherein memory device is used for data storage, and keyboard is used to import the corresponding setting parameter.In addition, can also adopt the EVC software programming, realize the parameter setting by the touch-screen on the telltale 4, thereby saved the setting of keyboard special telltale 4.
In a preferred embodiment of the present utility model, angular transducer 1 is the current mode angular transducer, and pulling force sensor 2 is the current mode pulling force sensor, and telltale 4 is a Liquid Crystal Display (LCD).
In another preferred embodiment of the present utility model, be connected by the CAN bus between motion controller 3 and the telltale 4.
In another preferred embodiment of the present utility model, also be connected with a photoelectric alarm on the relay 5, so that under the situation of load exceedance, send corresponding optoelectronic information, take appropriate measures to remind operating personal.
More than specific embodiment of the utility model is described in detail, but the utility model is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications that this little tonnage crawler crane integrated form limiter of moment is carried out and substituting also all among category of the present utility model.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present utility model, all should be encompassed in the scope of the present utility model.
Claims (7)
1. one kind little tonnage crawler crane integrated form limiter of moment is characterized in that, comprising:
Angular transducer, pulling force sensor, motion controller, telltale, relay, described angular transducer, pulling force sensor, telltale, relay all are connected to described motion controller.
2. little tonnage crawler crane integrated form limiter of moment according to claim 1 is characterized in that described angular transducer is the current mode angular transducer.
3. little tonnage crawler crane integrated form limiter of moment according to claim 1 is characterized in that described pulling force sensor is the current mode pulling force sensor.
4. little tonnage crawler crane integrated form limiter of moment according to claim 1 is characterized in that described relay is connected with photoelectric alarm.
5. little tonnage crawler crane integrated form limiter of moment according to claim 1 is characterized in that, is connected by the CAN bus between described motion controller and the described telltale.
6. little tonnage crawler crane integrated form limiter of moment according to claim 1 is characterized in that described telltale is a Liquid Crystal Display (LCD).
7. little tonnage crawler crane integrated form limiter of moment according to claim 1 is characterized in that described telltale is provided with keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206109128U CN201901549U (en) | 2010-11-17 | 2010-11-17 | Integrated moment limiter for small-tonnage crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206109128U CN201901549U (en) | 2010-11-17 | 2010-11-17 | Integrated moment limiter for small-tonnage crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201901549U true CN201901549U (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206109128U Expired - Fee Related CN201901549U (en) | 2010-11-17 | 2010-11-17 | Integrated moment limiter for small-tonnage crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201901549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408074A (en) * | 2011-10-28 | 2012-04-11 | 上海三一科技有限公司 | System and method for limiting crane rotation region and crane comprising the system |
-
2010
- 2010-11-17 CN CN2010206109128U patent/CN201901549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408074A (en) * | 2011-10-28 | 2012-04-11 | 上海三一科技有限公司 | System and method for limiting crane rotation region and crane comprising the 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: 20110720 Termination date: 20161117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |