CN204630718U - Case of by-pass valve qualification high-precision detection system - Google Patents
Case of by-pass valve qualification high-precision detection system Download PDFInfo
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- CN204630718U CN204630718U CN201520234947.9U CN201520234947U CN204630718U CN 204630718 U CN204630718 U CN 204630718U CN 201520234947 U CN201520234947 U CN 201520234947U CN 204630718 U CN204630718 U CN 204630718U
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Abstract
The utility model discloses a kind of case of by-pass valve qualification high-precision detection system, comprise grating scale, PLC, PC, pressure transducer, signaling conversion circuit, photo-electric proximity switch, relay, testing result pilot lamp and 24V Switching Power Supply; Grating scale connects PC by PLC, and pressure transducer connects PC by signaling conversion circuit, and photo-electric proximity switch connects PLC, PLC and connects testing result pilot lamp by relay; Grating scale, pressure transducer, photo-electric proximity switch are corresponding with case of by-pass valve to be checked to be installed; 24V Switching Power Supply connects described grating scale, photo-electric proximity switch and relay for its power supply.The utility model achieves and automatically provides case of by-pass valve qualification high precision test result, eliminates the inaccurate problem of result that interference from human factor causes, is conducive to the raising of production efficiency, also reduces false detection rate simultaneously.
Description
Technical field
The utility model relates to a kind of case of by-pass valve qualification high-precision detection system, belongs to technical field of automation in industry.
Background technology
By-pass valve is as the vitals of diesel motor turbocharger, and the requirement of its technical indicator is comparatively harsh, especially quite strict to the requirement of its testing process.On a production line, operating personnel to the detection of case of by-pass valve mainly adopt artificial observation spring travel and pressure qualified finally to judge whether, there is the situation of precision low and result erroneous judgement in this manual detection method, very large to final Influence on test result.
Utility model content
The utility model is for the situation manually detecting case of by-pass valve efficiency and lack accuracy in production run, a kind of case of by-pass valve qualification high-precision detection system is provided, efficient automatically can not only provide the testing result of case of by-pass valve, but also case of by-pass valve accuracy of detection can be improved.
The technical solution of the utility model is as follows:
A kind of case of by-pass valve qualification high-precision detection system, comprises grating scale, PLC, PC, pressure transducer, signaling conversion circuit, photo-electric proximity switch, relay, testing result pilot lamp and 24V Switching Power Supply; Described grating scale connects PC by PLC, and described pressure transducer connects PC by signaling conversion circuit, and described photo-electric proximity switch connects PLC, described PLC and connects testing result pilot lamp by relay; Described grating scale, pressure transducer, photo-electric proximity switch are corresponding with case of by-pass valve to be checked to be installed; Described 24V Switching Power Supply connects described grating scale, photo-electric proximity switch and relay, is its power supply.
Its further technical scheme is: also comprise Temperature Humidity Sensor, and described Temperature Humidity Sensor is connected with PC.
Advantageous Effects of the present utility model is:
The utility model revolutionizes the problem of original manual detection case of by-pass valve qualification lack accuracy, photo-electric proximity switch, grating scale, pressure transducer, PLC and PC is adopted to realize automatically providing high precision test result, eliminate the inaccurate problem of result that interference from human factor causes, be conducive to the raising of production efficiency, also reduce false detection rate simultaneously.
Adopt the utility model not only can realize automatically knowing testing result, and can detect in real time around humiture thus get rid of external interference improve accuracy of detection.
Advantage of the present utility model provides in the description of embodiment part below, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is case of by-pass valve qualification high-precision detection system structural drawing.
Fig. 2 is case of by-pass valve qualification high-precision detection system circuit module figure.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As depicted in figs. 1 and 2, the utility model comprises grating scale 1, PLC 2, PC 3, pressure transducer 4, signaling conversion circuit 5, photo-electric proximity switch 6, relay 7, testing result pilot lamp 8 and 24V Switching Power Supply 9.Grating scale 1 connects PC 3 by PLC 2, and pressure transducer 4 connects PC 3 by signaling conversion circuit 5, and photo-electric proximity switch 6 connects PLC 2, PLC 2 and connects testing result pilot lamp 8 by relay 7.Grating scale 1, pressure transducer 4, photo-electric proximity switch 6 are corresponding with case of by-pass valve to be checked to be installed.24V Switching Power Supply 9 connects grating scale 1, photo-electric proximity switch 6 and relay 7, is its power supply.Also comprise Temperature Humidity Sensor 9, Temperature Humidity Sensor 9 is connected with PC 3.
The detection of case of by-pass valve comprises stroke detection and pressure detection, and it is qualified to be judged whether by multiple test point, and test point wherein and requirement manually can be set by operating personnel.In the utility model, stroke is detected by grating scale 1, and detection signal delivers to the high-speed counting mouth of PLC 2.Pressure is detected by pressure transducer 4, and pressure signal delivers to the serial ports of PC 3 after signaling conversion circuit 5 is changed.Because grating scale 1 only has the output of incremental, so the Zeroes of stroke must be determined.
Relate to the Zeroes of pressure, stroke in testing process, must ensure the coincidence of two initial points, when namely stroke is zero, pressure is also necessary for zero.If adopt and confirm Zeroes according to pressure transducer 4 signal, unavoidably there is time lag problem, this is because pressure signal is sent to PC 3, and grating scale 1 signal is sent to PLC 2 high-speed counter mouth, read by PC 3, the mistiming is wherein enough to bring no small error again.What the utility model adopted is additionally increase photo-electric proximity switch 6 at case of by-pass valve place, only have when case of by-pass valve is in a flash stressed, photo-electric proximity switch 6 just has signal, and photo-electric proximity switch 6 signal is delivered to PLC 2, PLC 2 and confirmed stroke zero point according to this signal.
The gordian technique utilizing photo-electric proximity switch 6, grating scale 1, pressure transducer 4, PLC 2 and PC 3 to realize case of by-pass valve qualification high precision test is that the PLC 2 of grating scale 1 gathers and the PC 3 of pressure signal gathers and data processing.The utility model utilizes the high-speed counter of PLC 2 gather grating scale 1 signal and convert travel values to, and PC 3 is gathered pressure signal by serial ports, adopts the Modbus communications protocol of standard.Temperature Humidity Sensor 9 adopt equally with standard Modbus agreement.
The result having detected rear basis final is pointed out: when testing result is qualified, green indicating lamp is bright; When testing result is defective, red led is bright.
Principle of work of the present utility model is as follows:
According to case of by-pass valve technological requirement, operating personnel can add multiple test point and requirement detects, and namely organize stroke value, force value, these values must be just qualified within the scope of specifying more.When case of by-pass valve is in a flash stressed, photo-electric proximity switch 6 has signal, and PLC 2 confirms stroke zero point according to this signal.The detection of stroke has been come by grating scale 1, and precision can reach 5 microns, and the signal that grating scale 1 sends is high-speed pulse, is gathered this signal and is converted to stroke value, be sent to PC 3 by Modbus agreement by the high-speed pulse mouth of PLC 2.Force value is sent to the serial ports of PC 3 after signaling conversion circuit 5 converts by pressure transducer 4, PC 3 contrasts according to the stroke value collected, force value and standard value, namely it is qualified to be judged as within scope, otherwise be then defective, this process is completed automatically by PC 3, sends PLC 2 to subsequently by final detection result.After PLC 2 receives signal, this result shown by testing result pilot lamp 7 by relay 6, if qualified, green indicating lamp is bright, otherwise then red led is bright.
In sum, the utility model can realize High Precision Automatic detection case of by-pass valve qualification, utilizes photo-electric proximity switch, grating scale, pressure transducer, programmable logic controller (PLC) PLC, achieves the High Precision Automatic detection of case of by-pass valve qualification.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite not departing from basic conception of the present utility model, all should think and be included within protection domain of the present utility model.
Claims (2)
1. a case of by-pass valve qualification high-precision detection system, it is characterized in that, comprise grating scale (1), PLC (2), PC (3), pressure transducer (4), signaling conversion circuit (5), photo-electric proximity switch (6), relay (7), testing result pilot lamp (8) and 24V Switching Power Supply (9); Described grating scale (1) connects PC (3) by PLC (2), described pressure transducer (4) connects PC (3) by signaling conversion circuit (5), described photo-electric proximity switch (6) connects PLC (2), and described PLC (2) connects testing result pilot lamp (8) by relay (7); Described grating scale (1), pressure transducer (4), photo-electric proximity switch (6) is corresponding with case of by-pass valve to be checked installs; Described 24V Switching Power Supply (9) connects described grating scale (1), photo-electric proximity switch (6) and relay (7), is its power supply.
2. case of by-pass valve qualification high-precision detection system according to claim 1, is characterized in that, also comprises Temperature Humidity Sensor (9), and described Temperature Humidity Sensor (9) is connected with PC (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520234947.9U CN204630718U (en) | 2015-04-17 | 2015-04-17 | Case of by-pass valve qualification high-precision detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520234947.9U CN204630718U (en) | 2015-04-17 | 2015-04-17 | Case of by-pass valve qualification high-precision detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204630718U true CN204630718U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520234947.9U Expired - Fee Related CN204630718U (en) | 2015-04-17 | 2015-04-17 | Case of by-pass valve qualification high-precision detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204630718U (en) |
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2015
- 2015-04-17 CN CN201520234947.9U patent/CN204630718U/en not_active Expired - Fee Related
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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: 20150909 Termination date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |