CN219244836U - Mining length self-adaptive temperature sensor - Google Patents
Mining length self-adaptive temperature sensor Download PDFInfo
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- CN219244836U CN219244836U CN202320326467.XU CN202320326467U CN219244836U CN 219244836 U CN219244836 U CN 219244836U CN 202320326467 U CN202320326467 U CN 202320326467U CN 219244836 U CN219244836 U CN 219244836U
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- temperature sensor
- detection box
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- guide rod
- probe rod
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Abstract
The utility model provides a mining length self-adaptive temperature sensor which comprises a detection box, a probe rod, an equipment adapter and a guide rod, wherein a signal processing module is arranged in the detection box, an explosion-proof communication interface is arranged on the detection box, a temperature sensor is arranged at the front end of the probe rod, the temperature sensor is electrically connected with a signal input end of the signal processing module, the explosion-proof communication interface is electrically connected with a signal output end of the signal processing module, the root of the equipment adapter and the root of the guide rod are both connected to the detection box, a telescopic spring is sleeved outside the guide rod, the equipment adapter is arranged outside the root of the guide rod and the root of the telescopic spring in a surrounding mode and used for connecting tested equipment, a blind hole is formed in the rear part of the probe rod, the probe rod is sleeved at the end part of the guide rod through the blind hole, and the end part of the telescopic spring stretches into the blind hole and props against the probe rod.
Description
Technical Field
The utility model relates to a temperature sensor, in particular to a mining length self-adaptive temperature sensor.
Background
The temperature detecting and controlling device mainly comprises a temperature sensor, a connecting cable and a temperature display and controlling device, and is widely applied in the industrial field.
The mining temperature sensor is a sensor for measuring the temperature of underground coal mine equipment, and because the coal mine environment is severe and noisy, a measuring instrument needs to be far away from the mining temperature sensor, a transmission line which is actually required is long, the current mining temperature sensor is mostly PT100 resistance output, the transmission process is easily influenced by the length and the material of a communication cable, and the resistance of the cable can be superposed with the measurement resistance of a sensitive component, so that the measurement accuracy is reduced.
In addition, the mine temperature sensor in the market mainly adopts a mounting mode of clinging to the shell of the tested equipment or adopts a fixed-length probe rod, but in order to improve the accuracy of measuring the temperature, a sensitive component needs to be as close to a measured object (such as a bearing temperature) as possible, and due to the problems of accumulated errors and the like in the processing, manufacturing and assembling processes of the equipment, the existing mine temperature sensor probe rod sometimes cannot contact the measured object, so that the measurement accuracy is reduced.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides the mining length self-adaptive temperature sensor which is scientific in design, can always contact with a measured object, and is high in measurement precision and strong in practicability.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a mining length self-adaptation temperature sensor, includes detection box, probe rod, equipment adapter and guide bar, be provided with signal processing module in the detection box, be provided with explosion-proof communication interface on the detection box, the probe rod front end is provided with temperature sensor, temperature sensor with signal processing module's signal input part electricity is connected, explosion-proof communication interface with signal processing module's signal output part electricity is connected, the root of equipment adapter with the root of guide bar is all connected on the detection box, the cover is equipped with telescopic spring in the guide bar outside, equipment adapter encloses to establish the guide bar with the root outside of telescopic spring is used for connecting tested equipment, the blind hole has been seted up at the probe rod rear portion, the probe rod passes through the blind hole cover is established the guide bar tip, the tip of telescopic spring stretches into in the blind hole, jack the probe rod.
Based on the above, the signal processing module employs an XTR105 chip.
Based on the above, the explosion-proof communication interface is an in-line explosion-proof communication interface.
Based on the above, the root of the device adapter is connected with the detection box by adopting a U-shaped clamp, and the inner side of the device adapter is provided with a device connecting thread.
Compared with the prior art, the utility model has the substantial characteristics and progress, in particular to the utility model, the equipment-end adapter is arranged outside the tested equipment, the probe rod stretches into the equipment, the front end of the probe rod is ensured to be always contacted with the surface of the tested workpiece under the elastic action of the telescopic spring, and the influence of workpiece precision errors is eliminated, so that the detection precision is improved, and the utility model has the advantages of scientific design, always contacted with the tested object, high measurement precision and strong practicability.
Furthermore, the XTR105 chip can convert the variation of the resistance value of the temperature sensor along with the temperature into the variation of current, and the current value is only related to the RTD resistance value and is irrelevant to the line resistance, so that the error caused by the line resistance can be eliminated, and the temperature quadratic term in the platinum thermal resistance can be compensated linearly, thereby improving the linearity and the accuracy of temperature detection; the direct-plug type explosion-proof communication interface improves the convenience of connection with external equipment; the device adapter is connected with a detection port on the device through the device connecting threads, and the device adapter can be quickly assembled and disassembled with the detection box through the U-shaped card.
Drawings
Fig. 1 is a perspective view of a mining length-adaptive temperature sensor according to the present utility model.
Fig. 2 is a front view of the mine length adaptive temperature sensor of the present utility model.
Fig. 3 is a circuit diagram of an XTR105 chip in the present utility model.
In the figure: 1. a detection box; 2. an equipment adapter; 3. a retractable spring; 4. a probe rod; 5. an explosion-proof communication interface.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
As shown in fig. 1-3, the mining length self-adaptive temperature sensor comprises a detection box 1, a probe rod 4, an equipment adapter 2 and a guide rod, wherein a signal processing module is arranged in the detection box 1, an explosion-proof communication interface 5 is arranged on the detection box 1, a temperature sensor is arranged at the front end of the probe rod 4, the temperature sensor is electrically connected with a signal input end of the signal processing module, the explosion-proof communication interface 5 is electrically connected with a signal output end of the signal processing module, and the explosion-proof communication interface 5 is specifically an in-line explosion-proof communication interface so as to be quickly connected with external equipment and output a detected temperature value to the external equipment.
The root of the equipment adapter 2 with the root of guide bar is all connected on the detection box 1, the cover is equipped with telescopic spring 3 in the guide bar outside, equipment adapter 2 encloses to establish the guide bar with the root outside of telescopic spring 3 is used for connecting the equipment under test, the blind hole has been seted up at the probe rod 4 rear portion, probe rod 4 passes through the blind hole cover is established the guide bar tip, telescopic spring 3's tip stretches into in the blind hole, the top probe rod 4.
Working principle:
the equipment end adapter 2 is arranged on a detection port of the equipment to be detected, the probe rod 4 stretches into the equipment, the front end of the probe rod 4 is ensured to be always contacted with the surface of the workpiece to be detected under the elastic action of the telescopic spring 3, and the influence of workpiece precision errors is eliminated, so that the detection precision is improved.
In order to eliminate the influence of line resistance on detection precision, the signal processing module adopts an XTR105 chip; when the temperature sensor is used, the XTR105 chip can convert the variation of the resistance value of the temperature sensor along with the temperature into the variation of current, and the current value is only related to the RTD resistance value and is irrelevant to the line resistance, so that the error caused by the line resistance can be eliminated, and the temperature quadratic term in the platinum thermal resistance can be compensated linearly, thereby improving the linearity and the precision of temperature detection.
In order to make the installation more swift, the root of equipment adapter 2 adopts the U-shaped card with detect box 1 is connected, the inboard of equipment adapter 2 is provided with equipment connecting screw thread, through equipment connecting screw thread and the last detection port threaded connection of equipment.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (4)
1. The utility model provides a mining length self-adaptation temperature sensor, includes detection box and probe rod, be provided with signal processing module in the detection box, be provided with explosion-proof communication interface on the detection box, the probe rod front end is provided with temperature sensor, temperature sensor with signal processing module's signal input part electricity is connected, explosion-proof communication interface with signal processing module's signal output part electricity is connected, its characterized in that: the device comprises a detection box, and is characterized by further comprising a device adapter and a guide rod, wherein the root of the device adapter and the root of the guide rod are connected to the detection box, a telescopic spring is sleeved outside the guide rod, the device adapter is enclosed outside the root of the guide rod and the telescopic spring and used for connecting tested devices, a blind hole is formed in the rear portion of the probe rod, the probe rod is sleeved at the end portion of the guide rod through the blind hole, and the end portion of the telescopic spring stretches into the blind hole and props against the probe rod.
2. The mining length-adaptive temperature sensor of claim 1, wherein: the signal processing module adopts an XTR105 chip.
3. The mining length-adaptive temperature sensor of claim 2, wherein: the explosion-proof communication interface is an in-line explosion-proof communication interface.
4. A mining length-adaptive temperature sensor according to any one of claims 1-3, wherein: the root of the equipment adapter is connected with the detection box by adopting a U-shaped clamp, and equipment connecting threads are arranged on the inner side of the equipment adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320326467.XU CN219244836U (en) | 2023-02-27 | 2023-02-27 | Mining length self-adaptive temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320326467.XU CN219244836U (en) | 2023-02-27 | 2023-02-27 | Mining length self-adaptive temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219244836U true CN219244836U (en) | 2023-06-23 |
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ID=86846397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320326467.XU Active CN219244836U (en) | 2023-02-27 | 2023-02-27 | Mining length self-adaptive temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219244836U (en) |
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2023
- 2023-02-27 CN CN202320326467.XU patent/CN219244836U/en active Active
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