CN215677406U - Anti-vibration and anti-pollution pressure sensor for coal mine - Google Patents
Anti-vibration and anti-pollution pressure sensor for coal mine Download PDFInfo
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- CN215677406U CN215677406U CN202122352726.XU CN202122352726U CN215677406U CN 215677406 U CN215677406 U CN 215677406U CN 202122352726 U CN202122352726 U CN 202122352726U CN 215677406 U CN215677406 U CN 215677406U
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- pressure sensor
- vibration
- cylinder body
- coal mine
- joint
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- 239000003245 coal Substances 0.000 title claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 12
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 12
- 239000000741 silica gel Substances 0.000 claims abstract description 12
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 239000011651 chromium Substances 0.000 claims abstract description 5
- 238000007747 plating Methods 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of sensors, and relates to a vibration-resistant and pollution-resistant pressure sensor for a coal mine, which comprises a cylinder, a circuit board and a pressure sensor element which are sequentially arranged in the cylinder, and an incoming line connector arranged at the open end of the cylinder; silica gel is injected into the cylinder, and epoxy resin is injected into the wire inlet joint. According to the utility model, silica gel is poured into the cylinder body, so that the pressure sensor achieves the vibration resistance purpose; epoxy resin is poured into the inlet wire joint through the pouring port to achieve the waterproof purpose, and the cylinder body of the pressure sensor and the inlet wire joint are connected and sealed by threads, so that the cylinder body and the inlet wire joint are connected into a whole finally; simultaneously, the inner and outer surfaces of the cylinder body and the wire inlet joint are subjected to chromium plating treatment, so that the purposes of rust prevention and oxidation prevention are achieved; the anti-vibration and anti-pollution pressure sensor for the coal mine does not influence the normal measurement of the pressure sensor, can well protect the pressure sensor, and is simple, practical, convenient to install, safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of sensors, and relates to a vibration-resistant and pollution-resistant pressure sensor for a coal mine.
Background
The automatic drilling machine for the coal mine has poor underground working condition, is easy to be corroded by water vapor and is polluted by dust; when the drilling machine works, certain vibration is generated. The ordinary pressure sensor without protection is damaged by water vapor, coal slag, dust and slurry for a long time when used underground, has short service life and seriously influences the normal work of the automatic drilling machine. Therefore, the protection grade of the pressure sensor for the automatic drilling machine must be improved, the proximity switch is guaranteed to have the functions of water resistance, vibration resistance, pollution resistance and the like, and the pressure sensor has high reliability.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a vibration-resistant and anti-pollution pressure sensor for coal mine, which solves the problems of poor waterproof, anti-pollution and vibration-resistant effects of the existing pressure sensor, and improves the reliability of the automatic drilling machine.
In order to achieve the purpose, the utility model provides the following technical scheme: the anti-vibration and anti-pollution pressure sensor for the coal mine comprises a cylinder body, a circuit board and a pressure sensor element which are sequentially arranged in the cylinder body, and an inlet wire connector arranged at the open end of the cylinder body; silica gel is injected into the cylinder, and epoxy resin is injected into the wire inlet joint.
Optionally, the inlet wire connector is internally provided with a socket communicated with the circuit board and an intrinsically safe explosion-proof cable penetrating into the inlet wire connector and electrically connected with the socket, and the other end of the intrinsically safe explosion-proof cable is connected into an electric cabinet of the automatic drilling machine.
Optionally, the size of an opening at one end of the incoming line connector, which is connected into the intrinsically safe explosion-proof cable, is the same as the external diameter of the intrinsically safe explosion-proof cable.
Optionally, the inlet joint is of a stepped outer cylindrical shell structure, and a pouring gate for injecting epoxy resin is arranged on the inlet joint.
Optionally, the cylinder and the wire inlet joint are made of steel materials with inner and outer surfaces subjected to chromium plating treatment.
Optionally, the barrel and the incoming line connector are in threaded connection.
Optionally, the cylinder is of a cylindrical shell structure, an outer hexagon and an outer thread for installing and positioning the pressure sensor are sequentially arranged outside the closed end of the cylinder, and the cylinder is screwed into the pressure measuring valve plate of the automatic drilling machine through the outer thread.
The utility model has the beneficial effects that: according to the vibration-resistant and pollution-resistant pressure sensor for the coal mine, the silica gel is poured into the cylinder body, so that the vibration-resistant purpose of the pressure sensor is achieved; epoxy resin is poured into the inlet wire joint through the pouring port to achieve the waterproof purpose, and the cylinder body of the pressure sensor and the inlet wire joint are connected and sealed by threads, so that the cylinder body and the inlet wire joint are connected into a whole finally; simultaneously, the inner and outer surfaces of the cylinder body and the wire inlet joint are subjected to chromium plating treatment, so that the purposes of rust prevention and oxidation prevention are achieved; the pressure sensor can be protected well without influencing the normal measurement of the pressure sensor, and the pressure sensor is simple, practical, convenient to install, safe and reliable.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is an overall schematic view of a vibration-and contamination-resistant pressure sensor for coal mines according to the present invention;
fig. 2 is a cross-sectional view of the anti-vibration and anti-pollution pressure sensor for coal mine.
Reference numerals: the anti-explosion cable comprises a cylinder body 1, an outer hexagon 1-1, external threads 1-2, an incoming line connector 2, a pouring gate 2-1, an intrinsically safe anti-explosion cable 3, a socket 4, a circuit board 5, epoxy resin 6 and silica gel 7.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the anti-vibration and anti-pollution pressure sensor for coal mine specifically includes a cylinder 1, an incoming line connector 2, an intrinsically safe explosion-proof cable 3, a socket 4, a circuit board 5, an epoxy resin 6, and a silica gel 7, wherein the cylinder 1 is a cylindrical shell structure, the circuit board 5 is installed inside the cylinder 1, and a near end head (closed end) of the cylinder 1 is provided with an external hexagon 1-1 and an external thread 1-2 for installation and positioning of the pressure sensor. The inlet wire connector 2 is of a stepped outer cylindrical shell structure, a pouring gate 2-1 is arranged on the inlet wire connector, the pouring gate 2-1 is a small round hole, and the pouring gate 2-1 is used for injecting epoxy resin 6 into the inlet wire connector 2, so that waterproof and anti-pollution protection of the pressure sensor is realized. The cylinder body 1 and the wire inlet joint 2 are made of steel materials and used for protecting internal parts of the pressure sensor, the inner surface and the outer surface of the pressure sensor are required to be subjected to chromium plating treatment, and the functions of rust prevention, oxidation resistance and corrosion resistance of the pressure sensor can be realized. The barrel body 1 and the wire inlet joint 2 are connected into a whole by adopting threads. The intrinsically safe explosion-proof cable 3 is used for signal transmission, has the characteristics of intrinsic safety and explosion resistance, and is suitable for special working environments in coal mines. Socket 4 installs inside inlet wire connects 2, and circuit board 5 installs inside barrel 1. Silica gel 7 possesses the anti vibration function, and inside silica gel 7 injected cylinder 1, the realization was to the anti vibration protection of circuit board 5.
When the anti-vibration explosion-proof cable is manufactured, the circuit board 5 is installed inside the barrel body 1, the silica gel 7 is injected from the opening end of the barrel body 1, the anti-vibration effect is achieved, after the silica gel is solidified and formed, the anti-vibration explosion-proof cable is installed into the socket 4, and the anti-explosion cable 3 penetrates into the wire inlet connector 2 and is electrically connected with the socket 4; and then the cylinder body 1 and the wire inlet joint 2 are screwed tightly through threads, and immediately epoxy resin 6 is injected from the pouring gate 2-1, so that the functions of water resistance, pollution resistance and the like are achieved, and finally all parts are integrated into a whole to manufacture the pressure sensor. After the installation, an installing tool (a wrench) is used for clamping the outer hexagon 1-1 of the barrel body 1, the external thread 1-2 is screwed into a pressure measuring valve plate of the automatic drilling machine, the explosion-proof cable 3 is connected into an electric cabinet of the automatic drilling machine, and the installation of the pressure sensor is completed.
The utility model is unfolded around an automatic drilling machine for coal mines, and the vibration-resistant and pollution-resistant pressure sensor for coal mines is arranged on a pressure measuring valve plate of the automatic drilling machine through external threads, so that the dynamic pressure monitoring of the automatic drilling machine is realized. The barrel 1 is connected with the wire inlet joint 2 through a thread pair, the small end part of the wire inlet joint is connected with the explosion-proof cable 3, and the socket 4 and the circuit board 5 are arranged inside the barrel 1 and the wire inlet joint 2; and the assembly of all parts is realized by filling the epoxy resin 6 and the silica gel 7.
The anti-vibration and anti-pollution pressure sensor for the coal mine can monitor the pressure of each hydraulic subsystem of the automatic drilling machine, finally convert pressure signals of the hydraulic system into electric signals and input the electric signals into an electric cabinet of the automatic drilling machine, and complete dynamic monitoring of parameters such as executive parts, positions, strokes and the like of the automatic drilling machine.
The pressure sensor of the existing common protective-free automatic drilling machine for the coal mine is difficult to maintain and is easily influenced by severe working condition environment underground, and is one of important fault points of the automatic drilling machine, and the pressure sensor often influences the working efficiency of the drilling machine. The utility model can solve the problems of water resistance, rust resistance, vibration resistance, pollution resistance and the like of the existing pressure sensor for the coal mine, improves the working reliability of the automatic drilling machine and has good technical benefit.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a colliery is with anti vibration antipollution pressure sensor which characterized in that: the pressure sensor comprises a cylinder body, a circuit board and a pressure sensor element which are sequentially arranged in the cylinder body, and a wire inlet joint arranged at the open end of the cylinder body; silica gel is injected into the barrel, epoxy resin is injected into the inlet wire connector, a socket communicated with a circuit board is arranged inside the inlet wire connector, an intrinsic safety explosion-proof cable penetrates into the interior of the inlet wire connector and is electrically connected with the socket, and the other end of the intrinsic safety explosion-proof cable is connected into an electric cabinet of the automatic drilling machine.
2. The anti-vibration and anti-pollution pressure sensor for the coal mine as claimed in claim 1, wherein: the opening size of the end, connected into the intrinsically safe explosion-proof cable, of the incoming line connector is the same as the external diameter of the intrinsically safe explosion-proof cable.
3. The anti-vibration and anti-pollution pressure sensor for the coal mine as claimed in claim 1, wherein: the inlet wire joint is of a step-shaped outer cylindrical shell structure, and a pouring gate for injecting epoxy resin is arranged on the inlet wire joint.
4. The anti-vibration and anti-pollution pressure sensor for the coal mine as claimed in claim 1, wherein: the cylinder body and the wire inlet joint are made of steel materials with inner and outer surfaces subjected to chromium plating treatment.
5. The anti-vibration and anti-pollution pressure sensor for the coal mine as claimed in claim 1, wherein: the barrel and the incoming line joint are in threaded connection.
6. The anti-vibration and anti-pollution pressure sensor for the coal mine as claimed in claim 1, wherein: the cylinder body is of a cylindrical shell structure, an outer hexagon and an outer thread which are used for installing and positioning the pressure sensor are sequentially arranged outside the closed end of the cylinder body, and the cylinder body is screwed into the pressure measuring valve plate of the automatic drilling machine through the outer thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352726.XU CN215677406U (en) | 2021-09-27 | 2021-09-27 | Anti-vibration and anti-pollution pressure sensor for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352726.XU CN215677406U (en) | 2021-09-27 | 2021-09-27 | Anti-vibration and anti-pollution pressure sensor for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215677406U true CN215677406U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122352726.XU Active CN215677406U (en) | 2021-09-27 | 2021-09-27 | Anti-vibration and anti-pollution pressure sensor for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215677406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756872A (en) * | 2021-09-27 | 2021-12-07 | 中煤科工集团重庆研究院有限公司 | Anti-vibration and anti-pollution pressure sensor for coal mine and manufacturing method thereof |
| CN116146823A (en) * | 2022-12-14 | 2023-05-23 | 北华航天工业学院 | But two-way movement's small-bore pipeline detects magnet festival |
-
2021
- 2021-09-27 CN CN202122352726.XU patent/CN215677406U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756872A (en) * | 2021-09-27 | 2021-12-07 | 中煤科工集团重庆研究院有限公司 | Anti-vibration and anti-pollution pressure sensor for coal mine and manufacturing method thereof |
| CN116146823A (en) * | 2022-12-14 | 2023-05-23 | 北华航天工业学院 | But two-way movement's small-bore pipeline detects magnet festival |
| CN116146823B (en) * | 2022-12-14 | 2023-10-24 | 北华航天工业学院 | But two-way movement's small-bore pipeline detects magnet festival |
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