CN204938772U - A kind of output conversion device of hoisting crane laser probe - Google Patents
A kind of output conversion device of hoisting crane laser probe Download PDFInfo
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- CN204938772U CN204938772U CN201520711779.8U CN201520711779U CN204938772U CN 204938772 U CN204938772 U CN 204938772U CN 201520711779 U CN201520711779 U CN 201520711779U CN 204938772 U CN204938772 U CN 204938772U
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Abstract
The utility model discloses a kind of output conversion device of hoisting crane laser probe, comprise shell, be arranged at the laser probe of enclosure and change-over circuit, described change-over circuit comprising voltage conversion circuit for alternating-current voltage/AC voltage being converted into vdc, filter circuit, being used for signal to be converted to the output conversion circuit of dry contact output signal or 4-20mA analog quantity output signals.The utility model can make signal carry out long range propagation, not by external interference, and not by the restriction of voltage class, when the output of laser probe is analog quantity, can amplify output signal; Shell can avoid laser probe to be disturbed by outdoor light.
Description
Technical field
The utility model relates to a kind of output conversion device, particularly relates to a kind of output conversion device of hoisting crane laser probe.
Background technology
At present; hoisting crane widely uses in industrial and agricultural production; easily collide when multiple stage hoisting crane works on a track simultaneously; traditional crane anti-collision mainly adopts the mode of the crashproof limit switch of walking and the crashproof limit switch frizzen of walking; but the mode of this anticollision often can cause limit switch to damage and frizzen distortion; thus the collision prevention function of hoisting crane is lost, the crashproof or application of laser anti-collision on hoisting crane of infrared ray solves this difficult problem.
But the input voltage of laser probe is the vdc of 12V or 24V under normal circumstances, the output of laser probe is for recommending output or analog output.Due to laser probe input and output are weak electric signals, so easily by external interference in signal long-distance transmitting procedure, crane misoperation in the process run will be caused like this, hook is rocked, and outdoor light also can impact laser probe.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, designs a kind of output conversion device of hoisting crane laser probe, solves signal and to be easily interfered in long range propagation process and outdoor light can affect the problem of laser probe.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of output conversion device of hoisting crane laser probe, comprise shell, be arranged at laser probe and the change-over circuit of enclosure, described change-over circuit comprises the voltage conversion circuit for alternating-current voltage/AC voltage being converted into vdc, for filtering the filter circuit of external interference ripple and stabilization signal, for signal being converted to the output conversion circuit of dry contact output signal or 4-20mA analog quantity output signals, the mouth of described voltage conversion circuit connects the input end of laser probe, the mouth of laser probe connects the input end of filter circuit, the mouth of filter circuit connects the input end of output conversion circuit, described filter circuit is convertible stabilization filter circuit or low-pass filter circuit.
The shape of described shell is right-angled trapezium.
Described convertible stabilization filter circuit comprises the first phase inverter, the second phase inverter, resistance, electric capacity, switch, the mouth of described first phase inverter connects the input end of the second phase inverter, the mouth of the second phase inverter connects the input end of the first phase inverter, described resistance is in parallel with the first phase inverter after connecting with switch, one end ground connection of described electric capacity, the node that the other end is connected with resistance and switch is connected.
Positive beneficial effect of the present utility model:
1, by arranging encapsulated circuit, the signal through transforming is made by external interference, and the restriction of voltage class can not to be subject in long range propagation process.
2, when the output of laser probe is analog quantity, encapsulated circuit can amplify output signal.
3, by adopting shell, laser probe is made can to avoid the interference of outdoor light.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present utility model
Fig. 2 is constructional drawing of the present utility model
Fig. 3 is the circuit diagram of the convertible stabilization filter circuit of the utility model
The concrete meaning of number in the figure is: 1 is shell, and 2 is laser probe, and 3 is change-over circuit.
Detailed description of the invention
Specific embodiment of the utility model is illustrated below in conjunction with accompanying drawing.
As Fig. 1-3, a kind of output conversion device of hoisting crane laser probe, comprise shell 1, be arranged at laser probe 2 and the change-over circuit 3 of shell 1 inside, described change-over circuit 3 comprises the voltage conversion circuit for alternating-current voltage/AC voltage being converted into vdc, for filtering the filter circuit of external interference ripple and stabilization signal, for signal being converted to the output conversion circuit of dry contact output signal or 4-20mA analog quantity output signals, the mouth of described voltage conversion circuit connects the input end of laser probe 2, the mouth of laser probe 2 connects the input end of filter circuit, the mouth of filter circuit connects the input end of output conversion circuit, described filter circuit is convertible stabilization filter circuit or low-pass filter circuit,
Voltage conversion circuit is converted into the vdc of 12V or 24V the alternating-current voltage/AC voltage of 220V after rectifying and wave-filtering, and vdc is input to the input end of laser probe 2, and signal exports from the mouth of laser probe 2.
When exporting as recommending output, filter circuit adopts convertible stabilization filter circuit, described convertible stabilization filter circuit comprises the first phase inverter, the second phase inverter, resistance, electric capacity, switch, the mouth of described first phase inverter connects the input end of the second phase inverter, the mouth of the second phase inverter connects the input end of the first phase inverter, described resistance is in parallel with the first phase inverter after connecting with switch, and one end ground connection of described electric capacity, the node that the other end is connected with resistance and switch is connected.First phase inverter and the second phase inverter adopt CD4096 phase inverter, and the positive feed back from the second phase inverter b is drawn in the input of the first phase inverter a, and the switch often voltage closed on an electric capacity C all can make the first phase inverter a change state.The effect of resistance R is that the charge and discharge process of electric capacity C is slowed down, thus makes the impact that convertible stabilization filter circuit is shaken from switch contact.Signal after the process of convertible stabilization filter circuit sends into output conversion circuit, and signal is changed into dry contact signal by output conversion circuit.
When exporting as analog output, filter circuit adopts low-pass filter circuit, and output signal can be the analog quantity output signals of 1-5V, 0-10V or 4-20mA, signal input filter circuit, after low-pass filter circuit process, sends into output conversion circuit.In signals transmission, due to long range propagation, signal has certain decay, and output conversion circuit and can have the signal of decay to amplify to low voltage, and the signal being processed into 4-20mA exports.
By arranging change-over circuit 3, the signal processed through change-over circuit 3 would not by external interference in long range propagation process, and signal is more stable, and not by the restriction of voltage class, such crane would not misoperation in the process run, and hook also can not at will rock.
In order to prevent outdoor light, interference is caused to laser probe, the outside of laser probe 2 and change-over circuit 3 is provided with metal case 1, the shape of shell 1 is right-angled trapezium, the hypotenuse of right-angled trapezium shell 1 can stop outdoor skew ray, outdoor light so just can be avoided to impact laser probe, thus make signal more stable.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that; Still can modify to detailed description of the invention of the present utility model or equivalent replacement is carried out to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (3)
1. the output conversion device of a hoisting crane laser probe, it is characterized in that: comprise shell, be arranged at laser probe and the change-over circuit of enclosure, described change-over circuit comprises the voltage conversion circuit for alternating-current voltage/AC voltage being converted into vdc, for filtering the filter circuit of external interference ripple and stabilization signal, for signal being converted to the output conversion circuit of dry contact output signal or 4-20mA analog quantity output signals, the mouth of described voltage conversion circuit connects the input end of laser probe, the mouth of laser probe connects the input end of filter circuit, the mouth of filter circuit connects the input end of output conversion circuit, described filter circuit is convertible stabilization filter circuit or low-pass filter circuit.
2. the output conversion device of hoisting crane laser probe according to claim 1, is characterized in that: the shape of described shell is right-angled trapezium.
3. the output conversion device of hoisting crane laser probe according to claim 1, it is characterized in that: described convertible stabilization filter circuit comprises the first phase inverter, the second phase inverter, resistance, electric capacity, switch, the mouth of described first phase inverter connects the input end of the second phase inverter, the mouth of the second phase inverter connects the input end of the first phase inverter, described resistance is in parallel with the first phase inverter after connecting with switch, one end ground connection of described electric capacity, the node that the other end is connected with resistance and switch is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711779.8U CN204938772U (en) | 2015-09-15 | 2015-09-15 | A kind of output conversion device of hoisting crane laser probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711779.8U CN204938772U (en) | 2015-09-15 | 2015-09-15 | A kind of output conversion device of hoisting crane laser probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204938772U true CN204938772U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520711779.8U Active CN204938772U (en) | 2015-09-15 | 2015-09-15 | A kind of output conversion device of hoisting crane laser probe |
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| CN (1) | CN204938772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008749A (en) * | 2017-12-30 | 2018-05-08 | 深圳市杰普特光电股份有限公司 | Laser switching device |
-
2015
- 2015-09-15 CN CN201520711779.8U patent/CN204938772U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008749A (en) * | 2017-12-30 | 2018-05-08 | 深圳市杰普特光电股份有限公司 | Laser switching device |
| CN108008749B (en) * | 2017-12-30 | 2023-05-09 | 深圳市杰普特光电股份有限公司 | Laser switching device |
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