CN210664681U - Liquid level monitoring device for automatic oiling of railway turnout - Google Patents
Liquid level monitoring device for automatic oiling of railway turnout Download PDFInfo
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- CN210664681U CN210664681U CN201921450659.1U CN201921450659U CN210664681U CN 210664681 U CN210664681 U CN 210664681U CN 201921450659 U CN201921450659 U CN 201921450659U CN 210664681 U CN210664681 U CN 210664681U
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Abstract
The utility model discloses an automatic liquid level monitoring device for oiling of railway switch, it includes the oil tank, float and buoy rigid connection, the float is arranged in the oil tank inside and is floated on the oil level, buoy upper portion is passed oil tank upper portion lid and vertical upwards stretches out, the upper end of oil tank is still vertical to be equipped with one with the PCB board that the buoy paralleled, PCB board one side vertically is equipped with a plurality of groups by last under to in proper order and is used for detecting the infrared photoelectric tube of buoy position, a plurality of infrared photoelectric tubes of group pass through digital analog conversion circuit and are connected with oiling extension treater. The utility model discloses the influence factor is few and discernment is accurate rapidly.
Description
Technical Field
The utility model relates to an automatic oiling system monitoring technology of railway switch, especially a liquid level monitoring device is used in automatic oiling of railway switch.
Background
Along with the increase of railway construction mileage and the increase of the traveling density of the existing line, the railway station has more and more requirements on the automatic oiling system of the railway turnout, and the installation of the automatic oiling extension needs to monitor the amount of the lubricating oil which is filled in the automatic oiling extension in real time so as to prevent the safety accidents of the railway turnout, such as the improper turning of the turnout, the serious mechanical abrasion and the like, caused by the fact that the lubricating oil cannot be timely filled into the railway turnout when the oil amount is exhausted.
The existing liquid level monitoring technologies mainly comprise the following technologies:
1) capacitive liquid level monitoring: the capacitance change between the test probe and the oil tank wall caused by the oil quantity change is utilized to identify the oil quantity change, and the defect that the dielectric coefficient of the filled lubricating oil is sensitive, and the fact that the lubricating oil with the same dielectric coefficient can not be filled in each station cannot be guaranteed.
2) Resistance type liquid level monitoring: the position change of the floater in the oil tank is converted into resistance value change, so that the liquid level monitoring is realized, and the defects that the measurement precision is not high and the resolution can only be about 25mm when the total measuring range is small are overcome.
3) Ultrasonic liquid level monitoring: the liquid level monitoring is carried out by utilizing the speed difference of ultrasonic waves in air and lubricating oil, and the defect is that the measurement is inaccurate when the equivalent range is small.
Disclosure of Invention
An object of the utility model is to solve above-mentioned technical problem and provide an automatic liquid level monitoring device for oiling of railway switch that discernment is accurate, rapid.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a liquid level monitoring device for automatic oiling of railway turnout comprises an oil tank, a floater and a buoy, wherein the floater is rigidly connected with the buoy, the floater is arranged in the oil tank and floats on the oil level, the upper end of the buoy penetrates through a cover body on the upper portion of the oil tank and vertically extends upwards, a PCB is also vertically arranged at the upper end of the oil tank and is arranged in parallel with the buoy, a plurality of groups of infrared photoelectric tubes for detecting the position of the buoy are sequentially and longitudinally arranged on one side of the PCB from top to bottom, the infrared photoelectric tubes are connected with an oiling branch processor through a digital-to-analog conversion circuit, infrared light emitting diodes and phototriodes are adopted as photoelectric conversion elements by the infrared photoelectric tubes, the infrared light emitting diodes emit infrared light after the power is switched on, when the buoy floats, part of the infrared light is reflected to the corresponding phototriodes, the phototriodes are switched on and, therefore, the voltage value is changed, and the voltage value is input to the oil injection extension processor through the digital-to-analog conversion circuit and converted by the oil injection extension processor, so that the current liquid level information can be obtained.
Further, the float and the buoy are both made of stainless steel materials, the float is a closed cylinder, the diameter of the float is 65mm, the height of the float is 35mm, and the buoy is a cylinder, the diameter of the buoy is 10mm, and the height of the buoy is 130 mm.
Further, the transverse distance between the buoy and the infrared photoelectric tube is 5-10 mm.
Furthermore, the infrared photoelectric tubes are welded on the PCB board in 8 groups at equal intervals.
The utility model has the advantages that:
1) the liquid level monitoring is realized by monitoring the position of the buoy, the buoy is not influenced by parameters such as viscosity, color and dielectric coefficient of lubricating oil, environmental temperature, humidity and the like, the management difficulty of a user on the lubricating oil is reduced, and the use cost of the lubricating oil is reduced;
2) the identification is accurate and rapid, the power supply can control intermittent power supply through the oiling extension processor, namely, the power supply is supplied when the liquid level data needs to be detected, and the power consumption is effectively saved.
Drawings
FIG. 1 is a schematic diagram of a single infrared photoelectric tube circuit of the present invention;
FIG. 2 is a schematic diagram of a digital-to-analog conversion circuit according to the present invention;
FIG. 3 is a schematic view of the liquid level monitoring device for automatic oiling of railway switch according to the present invention;
fig. 4 is the utility model discloses liquid level monitoring device's for automatic oiling of railway switch overlook schematic diagram.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
referring to fig. 3 and 4, the utility model discloses an automatic liquid level monitoring device for oiling of railway switch mainly includes oil tank 1, float 2, buoy 3, PCB board 4, 8 infrared photoelectric tube 5 of group, digital analog conversion circuit and oiling extension treater.
The oil tank 1 is a rectangular box body, and oil liquid 11 is contained in the oil tank. The cover body on the upper part of the oil tank 1 is provided with a round hole which penetrates through the oil tank from top to bottom, and the round hole is matched with the buoy 3 so that the buoy 3 can penetrate through the round hole and can play a role in guiding.
The float 2 and the buoy 3 are rigidly connected and both are made of stainless steel. The floater 2 is a closed cylinder, the diameter of the floater 2 is 65mm, the height of the floater is 35mm, the buoy 3 is a cylinder, the diameter of the buoy is 10mm, the height of the buoy is 130mm, the floater 2 is immersed in oil 11 in the oil tank 1 and floats on the oil 11, the buoy 3 is coaxially and vertically arranged in the middle of the upper end of the floater 2, and the top end of the buoy 3 can be exposed out of the oil tank 1 and extend upwards under the action of the floater 2.
The 8 groups of infrared photoelectric tubes 5 are connected with the oiling extension processor through a digital-to-analog conversion circuit.
The 8 groups of infrared photoelectric tubes 5 are connected at different positions of the digital-to-analog conversion circuit, as shown in fig. 2, when a certain group of infrared photoelectric tubes 5 is turned on, the level of the corresponding position is set to 0, so as to change the voltage value of the OL1 position, that is, different voltages are corresponding to different conduction of the infrared photoelectric tubes 5. When the buoy 3 moves up and down, different infrared photoelectric tubes 5 are triggered to be conducted, so that the current buoy position is identified by analyzing the voltage value of the OL1 position.
As shown in fig. 1, the photo-sensing portion of the infrared photoelectric tube 5 can adjust the control voltage of the phototransistor Q1 when the infrared photoelectric tube 5 is not turned on by adjusting the resistance of the voltage dividing resistor R6, and when the infrared photoelectric tube 5 is not operated, the control voltage should be kept at 0.2-0.3V, which may cause false recognition if too high, and may cause difficulty in recognition if too low.
As shown in fig. 1, the light emitting portion of the infrared photoelectric tube 5 can adjust the light emitting intensity of the infrared photoelectric tube by adjusting the resistance value of the current limiting resistor R5 in series connection with the infrared light emitting diode, and the infrared photoelectric tube is difficult to identify due to low intensity and easy to identify due to high intensity.
As shown in fig. 2, the digital-to-analog conversion circuit portion can change the voltage value of each shift position (a certain infrared photoelectric tube 5 is shielded) by adjusting the resistance values of R34 to R41. And inputting the voltage value obtained by the digital-to-analog conversion circuit part into an ADC port of the oil injection extension processor, and converting by the oil injection extension processor to obtain the current liquid level information.
In order to meet the requirements of field application environments and reduce the power consumption of products, an intermittent power supply control method is adopted. The intermittent power supply control method can adopt a mode of detecting once at fixed time, namely, a certain time is set, and the intermittent power supply control method can be started and detected once after the set time is reached, and preferably, the intermittent power supply control method can be used for detecting the oil level once a day; the intermittent power supply control method can also be used for immediately carrying out primary oil level detection after the oil injection function is executed; the intermittent power supply is adopted, so that power can be supplied when liquid level data needs to be detected, and power consumption can be effectively saved.
In summary, the present invention is not limited to the above embodiments, and those skilled in the art can provide other embodiments within the technical teaching of the present invention, but these embodiments are included in the scope of the present invention.
Claims (4)
1. The utility model provides a liquid level monitoring device for automatic oiling of railway switch, includes oil tank, float and buoy, its characterized in that: the floater is rigidly connected with the buoy, the floater is arranged in the oil tank and floats on the oil liquid level, the upper end of the buoy penetrates through the cover body at the upper part of the oil tank and vertically extends upwards, the upper end of the oil tank is also vertically provided with a PCB which is arranged in parallel with the buoy, a plurality of groups of infrared photoelectric tubes for detecting the position of the buoy are sequentially and longitudinally arranged on one side of the PCB from top to bottom, the infrared photoelectric tubes are connected with the oiling extension processor through a digital-to-analog conversion circuit, wherein the infrared photoelectric tube adopts an infrared light emitting diode and a phototriode as photoelectric conversion elements, the infrared light emitting diode emits infrared light after the power supply is switched on, when the buoy floats, the buoy reflects part of infrared light to the corresponding phototriode, the phototriode is conducted, the corresponding position is horizontally set to be 0, therefore, the voltage value is changed, and the voltage value is input to the oil injection extension processor through the digital-to-analog conversion circuit and converted by the oil injection extension processor, so that the current liquid level information can be obtained.
2. The liquid level monitoring device for automatic oiling of a railway switch according to claim 1, characterized in that: the floater and the buoy are both made of stainless steel materials, the floater is a closed cylinder, the diameter of the floater is 65mm, the height of the floater is 35mm, and the buoy is a cylinder, the diameter of the buoy is 10mm, and the height of the buoy is 130 mm.
3. The liquid level monitoring device for automatic oiling of a railway switch according to claim 1, characterized in that: the transverse distance between the buoy and the infrared photoelectric tube is 5-10 mm.
4. The liquid level monitoring device for automatic oiling of a railway switch according to claim 1, characterized in that: the infrared photoelectric tubes are welded on the PCB board in 8 groups in total and at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450659.1U CN210664681U (en) | 2019-08-29 | 2019-08-29 | Liquid level monitoring device for automatic oiling of railway turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450659.1U CN210664681U (en) | 2019-08-29 | 2019-08-29 | Liquid level monitoring device for automatic oiling of railway turnout |
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| Publication Number | Publication Date |
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| CN210664681U true CN210664681U (en) | 2020-06-02 |
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| CN201921450659.1U Active CN210664681U (en) | 2019-08-29 | 2019-08-29 | Liquid level monitoring device for automatic oiling of railway turnout |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451834A (en) * | 2022-01-18 | 2022-05-10 | 深圳市银舍创新科技有限公司 | Dirt collection detection collection box, cleaning device and detection method thereof |
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2019
- 2019-08-29 CN CN201921450659.1U patent/CN210664681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451834A (en) * | 2022-01-18 | 2022-05-10 | 深圳市银舍创新科技有限公司 | Dirt collection detection collection box, cleaning device and detection method thereof |
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